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.
5 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
21 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 /* The 64-bit PowerPC ELF ABI may be found at
24 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
25 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
32 #include "elf/ppc64.h"
33 #include "elf64-ppc.h"
35 static bfd_reloc_status_type ppc64_elf_ha_reloc
36 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
37 static bfd_reloc_status_type ppc64_elf_brtaken_reloc
38 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
39 static bfd_reloc_status_type ppc64_elf_sectoff_reloc
40 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
41 static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
42 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
43 static bfd_reloc_status_type ppc64_elf_toc_reloc
44 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
45 static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
46 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
47 static bfd_reloc_status_type ppc64_elf_toc64_reloc
48 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
49 static bfd_reloc_status_type ppc64_elf_unhandled_reloc
50 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
53 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
54 #define TARGET_LITTLE_NAME "elf64-powerpcle"
55 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
56 #define TARGET_BIG_NAME "elf64-powerpc"
57 #define ELF_ARCH bfd_arch_powerpc
58 #define ELF_MACHINE_CODE EM_PPC64
59 #define ELF_MAXPAGESIZE 0x10000
60 #define elf_info_to_howto ppc64_elf_info_to_howto
62 #define elf_backend_want_got_sym 0
63 #define elf_backend_want_plt_sym 0
64 #define elf_backend_plt_alignment 3
65 #define elf_backend_plt_not_loaded 1
66 #define elf_backend_got_symbol_offset 0
67 #define elf_backend_got_header_size 8
68 #define elf_backend_can_gc_sections 1
69 #define elf_backend_can_refcount 1
70 #define elf_backend_rela_normal 1
72 #define bfd_elf64_mkobject ppc64_elf_mkobject
73 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
74 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
75 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
76 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
77 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
79 #define elf_backend_object_p ppc64_elf_object_p
80 #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
81 #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
82 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
83 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
84 #define elf_backend_check_relocs ppc64_elf_check_relocs
85 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
86 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
87 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
88 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
89 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
90 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
91 #define elf_backend_relocate_section ppc64_elf_relocate_section
92 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
93 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
94 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
95 #define elf_backend_special_sections ppc64_elf_special_sections
97 /* The name of the dynamic interpreter. This is put in the .interp
99 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
101 /* The size in bytes of an entry in the procedure linkage table. */
102 #define PLT_ENTRY_SIZE 24
104 /* The initial size of the plt reserved for the dynamic linker. */
105 #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
107 /* TOC base pointers offset from start of TOC. */
108 #define TOC_BASE_OFF 0x8000
110 /* Offset of tp and dtp pointers from start of TLS block. */
111 #define TP_OFFSET 0x7000
112 #define DTP_OFFSET 0x8000
114 /* .plt call stub instructions. The normal stub is like this, but
115 sometimes the .plt entry crosses a 64k boundary and we need to
116 insert an addis to adjust r12. */
117 #define PLT_CALL_STUB_SIZE (7*4)
118 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
119 #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
120 #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
121 #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
122 #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
123 /* ld %r11,xxx+16@l(%r12) */
124 #define BCTR 0x4e800420 /* bctr */
127 #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
128 #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
130 #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
132 /* glink call stub instructions. We enter with the index in R0, and the
133 address of glink entry in CTR. From that, we can calculate PLT0. */
134 #define GLINK_CALL_STUB_SIZE (16*4)
135 #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
136 #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
137 #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
138 #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
139 #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
140 #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
141 #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
142 /* sub %r12,%r12,%r11 */
143 #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
144 #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
145 /* ld %r11,xxx@l(%r12) */
146 #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
149 /* ld %r11,16(%r12) */
153 #define NOP 0x60000000
155 /* Some other nops. */
156 #define CROR_151515 0x4def7b82
157 #define CROR_313131 0x4ffffb82
159 /* .glink entries for the first 32k functions are two instructions. */
160 #define LI_R0_0 0x38000000 /* li %r0,0 */
161 #define B_DOT 0x48000000 /* b . */
163 /* After that, we need two instructions to load the index, followed by
165 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
166 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
168 /* Instructions to save and restore floating point regs. */
169 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
170 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
171 #define BLR 0x4e800020 /* blr */
173 /* Since .opd is an array of descriptors and each entry will end up
174 with identical R_PPC64_RELATIVE relocs, there is really no need to
175 propagate .opd relocs; The dynamic linker should be taught to
176 relocate .opd without reloc entries. */
177 #ifndef NO_OPD_RELOCS
178 #define NO_OPD_RELOCS 0
181 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
183 /* Relocation HOWTO's. */
184 static reloc_howto_type
*ppc64_elf_howto_table
[(int) R_PPC64_max
];
186 static reloc_howto_type ppc64_elf_howto_raw
[] = {
187 /* This reloc does nothing. */
188 HOWTO (R_PPC64_NONE
, /* type */
190 2, /* size (0 = byte, 1 = short, 2 = long) */
192 FALSE
, /* pc_relative */
194 complain_overflow_dont
, /* complain_on_overflow */
195 bfd_elf_generic_reloc
, /* special_function */
196 "R_PPC64_NONE", /* name */
197 FALSE
, /* partial_inplace */
200 FALSE
), /* pcrel_offset */
202 /* A standard 32 bit relocation. */
203 HOWTO (R_PPC64_ADDR32
, /* type */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
207 FALSE
, /* pc_relative */
209 complain_overflow_bitfield
, /* complain_on_overflow */
210 bfd_elf_generic_reloc
, /* special_function */
211 "R_PPC64_ADDR32", /* name */
212 FALSE
, /* partial_inplace */
214 0xffffffff, /* dst_mask */
215 FALSE
), /* pcrel_offset */
217 /* An absolute 26 bit branch; the lower two bits must be zero.
218 FIXME: we don't check that, we just clear them. */
219 HOWTO (R_PPC64_ADDR24
, /* type */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
223 FALSE
, /* pc_relative */
225 complain_overflow_bitfield
, /* complain_on_overflow */
226 bfd_elf_generic_reloc
, /* special_function */
227 "R_PPC64_ADDR24", /* name */
228 FALSE
, /* partial_inplace */
230 0x03fffffc, /* dst_mask */
231 FALSE
), /* pcrel_offset */
233 /* A standard 16 bit relocation. */
234 HOWTO (R_PPC64_ADDR16
, /* type */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
238 FALSE
, /* pc_relative */
240 complain_overflow_bitfield
, /* complain_on_overflow */
241 bfd_elf_generic_reloc
, /* special_function */
242 "R_PPC64_ADDR16", /* name */
243 FALSE
, /* partial_inplace */
245 0xffff, /* dst_mask */
246 FALSE
), /* pcrel_offset */
248 /* A 16 bit relocation without overflow. */
249 HOWTO (R_PPC64_ADDR16_LO
, /* type */
251 1, /* size (0 = byte, 1 = short, 2 = long) */
253 FALSE
, /* pc_relative */
255 complain_overflow_dont
,/* complain_on_overflow */
256 bfd_elf_generic_reloc
, /* special_function */
257 "R_PPC64_ADDR16_LO", /* name */
258 FALSE
, /* partial_inplace */
260 0xffff, /* dst_mask */
261 FALSE
), /* pcrel_offset */
263 /* Bits 16-31 of an address. */
264 HOWTO (R_PPC64_ADDR16_HI
, /* type */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
268 FALSE
, /* pc_relative */
270 complain_overflow_dont
, /* complain_on_overflow */
271 bfd_elf_generic_reloc
, /* special_function */
272 "R_PPC64_ADDR16_HI", /* name */
273 FALSE
, /* partial_inplace */
275 0xffff, /* dst_mask */
276 FALSE
), /* pcrel_offset */
278 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
279 bits, treated as a signed number, is negative. */
280 HOWTO (R_PPC64_ADDR16_HA
, /* type */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
284 FALSE
, /* pc_relative */
286 complain_overflow_dont
, /* complain_on_overflow */
287 ppc64_elf_ha_reloc
, /* special_function */
288 "R_PPC64_ADDR16_HA", /* name */
289 FALSE
, /* partial_inplace */
291 0xffff, /* dst_mask */
292 FALSE
), /* pcrel_offset */
294 /* An absolute 16 bit branch; the lower two bits must be zero.
295 FIXME: we don't check that, we just clear them. */
296 HOWTO (R_PPC64_ADDR14
, /* type */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
300 FALSE
, /* pc_relative */
302 complain_overflow_bitfield
, /* complain_on_overflow */
303 bfd_elf_generic_reloc
, /* special_function */
304 "R_PPC64_ADDR14", /* name */
305 FALSE
, /* partial_inplace */
307 0x0000fffc, /* dst_mask */
308 FALSE
), /* pcrel_offset */
310 /* An absolute 16 bit branch, for which bit 10 should be set to
311 indicate that the branch is expected to be taken. The lower two
312 bits must be zero. */
313 HOWTO (R_PPC64_ADDR14_BRTAKEN
, /* type */
315 2, /* size (0 = byte, 1 = short, 2 = long) */
317 FALSE
, /* pc_relative */
319 complain_overflow_bitfield
, /* complain_on_overflow */
320 ppc64_elf_brtaken_reloc
, /* special_function */
321 "R_PPC64_ADDR14_BRTAKEN",/* name */
322 FALSE
, /* partial_inplace */
324 0x0000fffc, /* dst_mask */
325 FALSE
), /* pcrel_offset */
327 /* An absolute 16 bit branch, for which bit 10 should be set to
328 indicate that the branch is not expected to be taken. The lower
329 two bits must be zero. */
330 HOWTO (R_PPC64_ADDR14_BRNTAKEN
, /* type */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
334 FALSE
, /* pc_relative */
336 complain_overflow_bitfield
, /* complain_on_overflow */
337 ppc64_elf_brtaken_reloc
, /* special_function */
338 "R_PPC64_ADDR14_BRNTAKEN",/* name */
339 FALSE
, /* partial_inplace */
341 0x0000fffc, /* dst_mask */
342 FALSE
), /* pcrel_offset */
344 /* A relative 26 bit branch; the lower two bits must be zero. */
345 HOWTO (R_PPC64_REL24
, /* type */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
349 TRUE
, /* pc_relative */
351 complain_overflow_signed
, /* complain_on_overflow */
352 bfd_elf_generic_reloc
, /* special_function */
353 "R_PPC64_REL24", /* name */
354 FALSE
, /* partial_inplace */
356 0x03fffffc, /* dst_mask */
357 TRUE
), /* pcrel_offset */
359 /* A relative 16 bit branch; the lower two bits must be zero. */
360 HOWTO (R_PPC64_REL14
, /* type */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
364 TRUE
, /* pc_relative */
366 complain_overflow_signed
, /* complain_on_overflow */
367 bfd_elf_generic_reloc
, /* special_function */
368 "R_PPC64_REL14", /* name */
369 FALSE
, /* partial_inplace */
371 0x0000fffc, /* dst_mask */
372 TRUE
), /* pcrel_offset */
374 /* A relative 16 bit branch. Bit 10 should be set to indicate that
375 the branch is expected to be taken. The lower two bits must be
377 HOWTO (R_PPC64_REL14_BRTAKEN
, /* type */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
381 TRUE
, /* pc_relative */
383 complain_overflow_signed
, /* complain_on_overflow */
384 ppc64_elf_brtaken_reloc
, /* special_function */
385 "R_PPC64_REL14_BRTAKEN", /* name */
386 FALSE
, /* partial_inplace */
388 0x0000fffc, /* dst_mask */
389 TRUE
), /* pcrel_offset */
391 /* A relative 16 bit branch. Bit 10 should be set to indicate that
392 the branch is not expected to be taken. The lower two bits must
394 HOWTO (R_PPC64_REL14_BRNTAKEN
, /* type */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
398 TRUE
, /* pc_relative */
400 complain_overflow_signed
, /* complain_on_overflow */
401 ppc64_elf_brtaken_reloc
, /* special_function */
402 "R_PPC64_REL14_BRNTAKEN",/* name */
403 FALSE
, /* partial_inplace */
405 0x0000fffc, /* dst_mask */
406 TRUE
), /* pcrel_offset */
408 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
410 HOWTO (R_PPC64_GOT16
, /* type */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
414 FALSE
, /* pc_relative */
416 complain_overflow_signed
, /* complain_on_overflow */
417 ppc64_elf_unhandled_reloc
, /* special_function */
418 "R_PPC64_GOT16", /* name */
419 FALSE
, /* partial_inplace */
421 0xffff, /* dst_mask */
422 FALSE
), /* pcrel_offset */
424 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
426 HOWTO (R_PPC64_GOT16_LO
, /* type */
428 1, /* size (0 = byte, 1 = short, 2 = long) */
430 FALSE
, /* pc_relative */
432 complain_overflow_dont
, /* complain_on_overflow */
433 ppc64_elf_unhandled_reloc
, /* special_function */
434 "R_PPC64_GOT16_LO", /* name */
435 FALSE
, /* partial_inplace */
437 0xffff, /* dst_mask */
438 FALSE
), /* pcrel_offset */
440 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
442 HOWTO (R_PPC64_GOT16_HI
, /* type */
444 1, /* size (0 = byte, 1 = short, 2 = long) */
446 FALSE
, /* pc_relative */
448 complain_overflow_dont
,/* complain_on_overflow */
449 ppc64_elf_unhandled_reloc
, /* special_function */
450 "R_PPC64_GOT16_HI", /* name */
451 FALSE
, /* partial_inplace */
453 0xffff, /* dst_mask */
454 FALSE
), /* pcrel_offset */
456 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
458 HOWTO (R_PPC64_GOT16_HA
, /* type */
460 1, /* size (0 = byte, 1 = short, 2 = long) */
462 FALSE
, /* pc_relative */
464 complain_overflow_dont
,/* complain_on_overflow */
465 ppc64_elf_unhandled_reloc
, /* special_function */
466 "R_PPC64_GOT16_HA", /* name */
467 FALSE
, /* partial_inplace */
469 0xffff, /* dst_mask */
470 FALSE
), /* pcrel_offset */
472 /* This is used only by the dynamic linker. The symbol should exist
473 both in the object being run and in some shared library. The
474 dynamic linker copies the data addressed by the symbol from the
475 shared library into the object, because the object being
476 run has to have the data at some particular address. */
477 HOWTO (R_PPC64_COPY
, /* type */
479 0, /* this one is variable size */
481 FALSE
, /* pc_relative */
483 complain_overflow_dont
, /* complain_on_overflow */
484 ppc64_elf_unhandled_reloc
, /* special_function */
485 "R_PPC64_COPY", /* name */
486 FALSE
, /* partial_inplace */
489 FALSE
), /* pcrel_offset */
491 /* Like R_PPC64_ADDR64, but used when setting global offset table
493 HOWTO (R_PPC64_GLOB_DAT
, /* type */
495 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
497 FALSE
, /* pc_relative */
499 complain_overflow_dont
, /* complain_on_overflow */
500 ppc64_elf_unhandled_reloc
, /* special_function */
501 "R_PPC64_GLOB_DAT", /* name */
502 FALSE
, /* partial_inplace */
504 ONES (64), /* dst_mask */
505 FALSE
), /* pcrel_offset */
507 /* Created by the link editor. Marks a procedure linkage table
508 entry for a symbol. */
509 HOWTO (R_PPC64_JMP_SLOT
, /* type */
511 0, /* size (0 = byte, 1 = short, 2 = long) */
513 FALSE
, /* pc_relative */
515 complain_overflow_dont
, /* complain_on_overflow */
516 ppc64_elf_unhandled_reloc
, /* special_function */
517 "R_PPC64_JMP_SLOT", /* name */
518 FALSE
, /* partial_inplace */
521 FALSE
), /* pcrel_offset */
523 /* Used only by the dynamic linker. When the object is run, this
524 doubleword64 is set to the load address of the object, plus the
526 HOWTO (R_PPC64_RELATIVE
, /* type */
528 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
530 FALSE
, /* pc_relative */
532 complain_overflow_dont
, /* complain_on_overflow */
533 bfd_elf_generic_reloc
, /* special_function */
534 "R_PPC64_RELATIVE", /* name */
535 FALSE
, /* partial_inplace */
537 ONES (64), /* dst_mask */
538 FALSE
), /* pcrel_offset */
540 /* Like R_PPC64_ADDR32, but may be unaligned. */
541 HOWTO (R_PPC64_UADDR32
, /* type */
543 2, /* size (0 = byte, 1 = short, 2 = long) */
545 FALSE
, /* pc_relative */
547 complain_overflow_bitfield
, /* complain_on_overflow */
548 bfd_elf_generic_reloc
, /* special_function */
549 "R_PPC64_UADDR32", /* name */
550 FALSE
, /* partial_inplace */
552 0xffffffff, /* dst_mask */
553 FALSE
), /* pcrel_offset */
555 /* Like R_PPC64_ADDR16, but may be unaligned. */
556 HOWTO (R_PPC64_UADDR16
, /* type */
558 1, /* size (0 = byte, 1 = short, 2 = long) */
560 FALSE
, /* pc_relative */
562 complain_overflow_bitfield
, /* complain_on_overflow */
563 bfd_elf_generic_reloc
, /* special_function */
564 "R_PPC64_UADDR16", /* name */
565 FALSE
, /* partial_inplace */
567 0xffff, /* dst_mask */
568 FALSE
), /* pcrel_offset */
570 /* 32-bit PC relative. */
571 HOWTO (R_PPC64_REL32
, /* type */
573 2, /* size (0 = byte, 1 = short, 2 = long) */
575 TRUE
, /* pc_relative */
577 /* FIXME: Verify. Was complain_overflow_bitfield. */
578 complain_overflow_signed
, /* complain_on_overflow */
579 bfd_elf_generic_reloc
, /* special_function */
580 "R_PPC64_REL32", /* name */
581 FALSE
, /* partial_inplace */
583 0xffffffff, /* dst_mask */
584 TRUE
), /* pcrel_offset */
586 /* 32-bit relocation to the symbol's procedure linkage table. */
587 HOWTO (R_PPC64_PLT32
, /* type */
589 2, /* size (0 = byte, 1 = short, 2 = long) */
591 FALSE
, /* pc_relative */
593 complain_overflow_bitfield
, /* complain_on_overflow */
594 ppc64_elf_unhandled_reloc
, /* special_function */
595 "R_PPC64_PLT32", /* name */
596 FALSE
, /* partial_inplace */
598 0xffffffff, /* dst_mask */
599 FALSE
), /* pcrel_offset */
601 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
602 FIXME: R_PPC64_PLTREL32 not supported. */
603 HOWTO (R_PPC64_PLTREL32
, /* type */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
607 TRUE
, /* pc_relative */
609 complain_overflow_signed
, /* complain_on_overflow */
610 bfd_elf_generic_reloc
, /* special_function */
611 "R_PPC64_PLTREL32", /* name */
612 FALSE
, /* partial_inplace */
614 0xffffffff, /* dst_mask */
615 TRUE
), /* pcrel_offset */
617 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
619 HOWTO (R_PPC64_PLT16_LO
, /* type */
621 1, /* size (0 = byte, 1 = short, 2 = long) */
623 FALSE
, /* pc_relative */
625 complain_overflow_dont
, /* complain_on_overflow */
626 ppc64_elf_unhandled_reloc
, /* special_function */
627 "R_PPC64_PLT16_LO", /* name */
628 FALSE
, /* partial_inplace */
630 0xffff, /* dst_mask */
631 FALSE
), /* pcrel_offset */
633 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
635 HOWTO (R_PPC64_PLT16_HI
, /* type */
637 1, /* size (0 = byte, 1 = short, 2 = long) */
639 FALSE
, /* pc_relative */
641 complain_overflow_dont
, /* complain_on_overflow */
642 ppc64_elf_unhandled_reloc
, /* special_function */
643 "R_PPC64_PLT16_HI", /* name */
644 FALSE
, /* partial_inplace */
646 0xffff, /* dst_mask */
647 FALSE
), /* pcrel_offset */
649 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
651 HOWTO (R_PPC64_PLT16_HA
, /* type */
653 1, /* size (0 = byte, 1 = short, 2 = long) */
655 FALSE
, /* pc_relative */
657 complain_overflow_dont
, /* complain_on_overflow */
658 ppc64_elf_unhandled_reloc
, /* special_function */
659 "R_PPC64_PLT16_HA", /* name */
660 FALSE
, /* partial_inplace */
662 0xffff, /* dst_mask */
663 FALSE
), /* pcrel_offset */
665 /* 16-bit section relative relocation. */
666 HOWTO (R_PPC64_SECTOFF
, /* type */
668 1, /* size (0 = byte, 1 = short, 2 = long) */
670 FALSE
, /* pc_relative */
672 complain_overflow_bitfield
, /* complain_on_overflow */
673 ppc64_elf_sectoff_reloc
, /* special_function */
674 "R_PPC64_SECTOFF", /* name */
675 FALSE
, /* partial_inplace */
677 0xffff, /* dst_mask */
678 FALSE
), /* pcrel_offset */
680 /* Like R_PPC64_SECTOFF, but no overflow warning. */
681 HOWTO (R_PPC64_SECTOFF_LO
, /* type */
683 1, /* size (0 = byte, 1 = short, 2 = long) */
685 FALSE
, /* pc_relative */
687 complain_overflow_dont
, /* complain_on_overflow */
688 ppc64_elf_sectoff_reloc
, /* special_function */
689 "R_PPC64_SECTOFF_LO", /* name */
690 FALSE
, /* partial_inplace */
692 0xffff, /* dst_mask */
693 FALSE
), /* pcrel_offset */
695 /* 16-bit upper half section relative relocation. */
696 HOWTO (R_PPC64_SECTOFF_HI
, /* type */
698 1, /* size (0 = byte, 1 = short, 2 = long) */
700 FALSE
, /* pc_relative */
702 complain_overflow_dont
, /* complain_on_overflow */
703 ppc64_elf_sectoff_reloc
, /* special_function */
704 "R_PPC64_SECTOFF_HI", /* name */
705 FALSE
, /* partial_inplace */
707 0xffff, /* dst_mask */
708 FALSE
), /* pcrel_offset */
710 /* 16-bit upper half adjusted section relative relocation. */
711 HOWTO (R_PPC64_SECTOFF_HA
, /* type */
713 1, /* size (0 = byte, 1 = short, 2 = long) */
715 FALSE
, /* pc_relative */
717 complain_overflow_dont
, /* complain_on_overflow */
718 ppc64_elf_sectoff_ha_reloc
, /* special_function */
719 "R_PPC64_SECTOFF_HA", /* name */
720 FALSE
, /* partial_inplace */
722 0xffff, /* dst_mask */
723 FALSE
), /* pcrel_offset */
725 /* Like R_PPC64_REL24 without touching the two least significant bits. */
726 HOWTO (R_PPC64_REL30
, /* type */
728 2, /* size (0 = byte, 1 = short, 2 = long) */
730 TRUE
, /* pc_relative */
732 complain_overflow_dont
, /* complain_on_overflow */
733 bfd_elf_generic_reloc
, /* special_function */
734 "R_PPC64_REL30", /* name */
735 FALSE
, /* partial_inplace */
737 0xfffffffc, /* dst_mask */
738 TRUE
), /* pcrel_offset */
740 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
742 /* A standard 64-bit relocation. */
743 HOWTO (R_PPC64_ADDR64
, /* type */
745 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
747 FALSE
, /* pc_relative */
749 complain_overflow_dont
, /* complain_on_overflow */
750 bfd_elf_generic_reloc
, /* special_function */
751 "R_PPC64_ADDR64", /* name */
752 FALSE
, /* partial_inplace */
754 ONES (64), /* dst_mask */
755 FALSE
), /* pcrel_offset */
757 /* The bits 32-47 of an address. */
758 HOWTO (R_PPC64_ADDR16_HIGHER
, /* type */
760 1, /* size (0 = byte, 1 = short, 2 = long) */
762 FALSE
, /* pc_relative */
764 complain_overflow_dont
, /* complain_on_overflow */
765 bfd_elf_generic_reloc
, /* special_function */
766 "R_PPC64_ADDR16_HIGHER", /* name */
767 FALSE
, /* partial_inplace */
769 0xffff, /* dst_mask */
770 FALSE
), /* pcrel_offset */
772 /* The bits 32-47 of an address, plus 1 if the contents of the low
773 16 bits, treated as a signed number, is negative. */
774 HOWTO (R_PPC64_ADDR16_HIGHERA
, /* type */
776 1, /* size (0 = byte, 1 = short, 2 = long) */
778 FALSE
, /* pc_relative */
780 complain_overflow_dont
, /* complain_on_overflow */
781 ppc64_elf_ha_reloc
, /* special_function */
782 "R_PPC64_ADDR16_HIGHERA", /* name */
783 FALSE
, /* partial_inplace */
785 0xffff, /* dst_mask */
786 FALSE
), /* pcrel_offset */
788 /* The bits 48-63 of an address. */
789 HOWTO (R_PPC64_ADDR16_HIGHEST
,/* type */
791 1, /* size (0 = byte, 1 = short, 2 = long) */
793 FALSE
, /* pc_relative */
795 complain_overflow_dont
, /* complain_on_overflow */
796 bfd_elf_generic_reloc
, /* special_function */
797 "R_PPC64_ADDR16_HIGHEST", /* name */
798 FALSE
, /* partial_inplace */
800 0xffff, /* dst_mask */
801 FALSE
), /* pcrel_offset */
803 /* The bits 48-63 of an address, plus 1 if the contents of the low
804 16 bits, treated as a signed number, is negative. */
805 HOWTO (R_PPC64_ADDR16_HIGHESTA
,/* type */
807 1, /* size (0 = byte, 1 = short, 2 = long) */
809 FALSE
, /* pc_relative */
811 complain_overflow_dont
, /* complain_on_overflow */
812 ppc64_elf_ha_reloc
, /* special_function */
813 "R_PPC64_ADDR16_HIGHESTA", /* name */
814 FALSE
, /* partial_inplace */
816 0xffff, /* dst_mask */
817 FALSE
), /* pcrel_offset */
819 /* Like ADDR64, but may be unaligned. */
820 HOWTO (R_PPC64_UADDR64
, /* type */
822 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
824 FALSE
, /* pc_relative */
826 complain_overflow_dont
, /* complain_on_overflow */
827 bfd_elf_generic_reloc
, /* special_function */
828 "R_PPC64_UADDR64", /* name */
829 FALSE
, /* partial_inplace */
831 ONES (64), /* dst_mask */
832 FALSE
), /* pcrel_offset */
834 /* 64-bit relative relocation. */
835 HOWTO (R_PPC64_REL64
, /* type */
837 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
839 TRUE
, /* pc_relative */
841 complain_overflow_dont
, /* complain_on_overflow */
842 bfd_elf_generic_reloc
, /* special_function */
843 "R_PPC64_REL64", /* name */
844 FALSE
, /* partial_inplace */
846 ONES (64), /* dst_mask */
847 TRUE
), /* pcrel_offset */
849 /* 64-bit relocation to the symbol's procedure linkage table. */
850 HOWTO (R_PPC64_PLT64
, /* type */
852 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
854 FALSE
, /* pc_relative */
856 complain_overflow_dont
, /* complain_on_overflow */
857 ppc64_elf_unhandled_reloc
, /* special_function */
858 "R_PPC64_PLT64", /* name */
859 FALSE
, /* partial_inplace */
861 ONES (64), /* dst_mask */
862 FALSE
), /* pcrel_offset */
864 /* 64-bit PC relative relocation to the symbol's procedure linkage
866 /* FIXME: R_PPC64_PLTREL64 not supported. */
867 HOWTO (R_PPC64_PLTREL64
, /* type */
869 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
871 TRUE
, /* pc_relative */
873 complain_overflow_dont
, /* complain_on_overflow */
874 ppc64_elf_unhandled_reloc
, /* special_function */
875 "R_PPC64_PLTREL64", /* name */
876 FALSE
, /* partial_inplace */
878 ONES (64), /* dst_mask */
879 TRUE
), /* pcrel_offset */
881 /* 16 bit TOC-relative relocation. */
883 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
884 HOWTO (R_PPC64_TOC16
, /* type */
886 1, /* size (0 = byte, 1 = short, 2 = long) */
888 FALSE
, /* pc_relative */
890 complain_overflow_signed
, /* complain_on_overflow */
891 ppc64_elf_toc_reloc
, /* special_function */
892 "R_PPC64_TOC16", /* name */
893 FALSE
, /* partial_inplace */
895 0xffff, /* dst_mask */
896 FALSE
), /* pcrel_offset */
898 /* 16 bit TOC-relative relocation without overflow. */
900 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
901 HOWTO (R_PPC64_TOC16_LO
, /* type */
903 1, /* size (0 = byte, 1 = short, 2 = long) */
905 FALSE
, /* pc_relative */
907 complain_overflow_dont
, /* complain_on_overflow */
908 ppc64_elf_toc_reloc
, /* special_function */
909 "R_PPC64_TOC16_LO", /* name */
910 FALSE
, /* partial_inplace */
912 0xffff, /* dst_mask */
913 FALSE
), /* pcrel_offset */
915 /* 16 bit TOC-relative relocation, high 16 bits. */
917 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
918 HOWTO (R_PPC64_TOC16_HI
, /* type */
920 1, /* size (0 = byte, 1 = short, 2 = long) */
922 FALSE
, /* pc_relative */
924 complain_overflow_dont
, /* complain_on_overflow */
925 ppc64_elf_toc_reloc
, /* special_function */
926 "R_PPC64_TOC16_HI", /* name */
927 FALSE
, /* partial_inplace */
929 0xffff, /* dst_mask */
930 FALSE
), /* pcrel_offset */
932 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
933 contents of the low 16 bits, treated as a signed number, is
936 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
937 HOWTO (R_PPC64_TOC16_HA
, /* type */
939 1, /* size (0 = byte, 1 = short, 2 = long) */
941 FALSE
, /* pc_relative */
943 complain_overflow_dont
, /* complain_on_overflow */
944 ppc64_elf_toc_ha_reloc
, /* special_function */
945 "R_PPC64_TOC16_HA", /* name */
946 FALSE
, /* partial_inplace */
948 0xffff, /* dst_mask */
949 FALSE
), /* pcrel_offset */
951 /* 64-bit relocation; insert value of TOC base (.TOC.). */
953 /* R_PPC64_TOC 51 doubleword64 .TOC. */
954 HOWTO (R_PPC64_TOC
, /* type */
956 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
958 FALSE
, /* pc_relative */
960 complain_overflow_bitfield
, /* complain_on_overflow */
961 ppc64_elf_toc64_reloc
, /* special_function */
962 "R_PPC64_TOC", /* name */
963 FALSE
, /* partial_inplace */
965 ONES (64), /* dst_mask */
966 FALSE
), /* pcrel_offset */
968 /* Like R_PPC64_GOT16, but also informs the link editor that the
969 value to relocate may (!) refer to a PLT entry which the link
970 editor (a) may replace with the symbol value. If the link editor
971 is unable to fully resolve the symbol, it may (b) create a PLT
972 entry and store the address to the new PLT entry in the GOT.
973 This permits lazy resolution of function symbols at run time.
974 The link editor may also skip all of this and just (c) emit a
975 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
976 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
977 HOWTO (R_PPC64_PLTGOT16
, /* type */
979 1, /* size (0 = byte, 1 = short, 2 = long) */
981 FALSE
, /* pc_relative */
983 complain_overflow_signed
, /* complain_on_overflow */
984 ppc64_elf_unhandled_reloc
, /* special_function */
985 "R_PPC64_PLTGOT16", /* name */
986 FALSE
, /* partial_inplace */
988 0xffff, /* dst_mask */
989 FALSE
), /* pcrel_offset */
991 /* Like R_PPC64_PLTGOT16, but without overflow. */
992 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
993 HOWTO (R_PPC64_PLTGOT16_LO
, /* type */
995 1, /* size (0 = byte, 1 = short, 2 = long) */
997 FALSE
, /* pc_relative */
999 complain_overflow_dont
, /* complain_on_overflow */
1000 ppc64_elf_unhandled_reloc
, /* special_function */
1001 "R_PPC64_PLTGOT16_LO", /* name */
1002 FALSE
, /* partial_inplace */
1004 0xffff, /* dst_mask */
1005 FALSE
), /* pcrel_offset */
1007 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1008 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1009 HOWTO (R_PPC64_PLTGOT16_HI
, /* type */
1010 16, /* rightshift */
1011 1, /* size (0 = byte, 1 = short, 2 = long) */
1013 FALSE
, /* pc_relative */
1015 complain_overflow_dont
, /* complain_on_overflow */
1016 ppc64_elf_unhandled_reloc
, /* special_function */
1017 "R_PPC64_PLTGOT16_HI", /* name */
1018 FALSE
, /* partial_inplace */
1020 0xffff, /* dst_mask */
1021 FALSE
), /* pcrel_offset */
1023 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1024 1 if the contents of the low 16 bits, treated as a signed number,
1026 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1027 HOWTO (R_PPC64_PLTGOT16_HA
, /* type */
1028 16, /* rightshift */
1029 1, /* size (0 = byte, 1 = short, 2 = long) */
1031 FALSE
, /* pc_relative */
1033 complain_overflow_dont
,/* complain_on_overflow */
1034 ppc64_elf_unhandled_reloc
, /* special_function */
1035 "R_PPC64_PLTGOT16_HA", /* name */
1036 FALSE
, /* partial_inplace */
1038 0xffff, /* dst_mask */
1039 FALSE
), /* pcrel_offset */
1041 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1042 HOWTO (R_PPC64_ADDR16_DS
, /* type */
1044 1, /* size (0 = byte, 1 = short, 2 = long) */
1046 FALSE
, /* pc_relative */
1048 complain_overflow_bitfield
, /* complain_on_overflow */
1049 bfd_elf_generic_reloc
, /* special_function */
1050 "R_PPC64_ADDR16_DS", /* name */
1051 FALSE
, /* partial_inplace */
1053 0xfffc, /* dst_mask */
1054 FALSE
), /* pcrel_offset */
1056 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1057 HOWTO (R_PPC64_ADDR16_LO_DS
, /* type */
1059 1, /* size (0 = byte, 1 = short, 2 = long) */
1061 FALSE
, /* pc_relative */
1063 complain_overflow_dont
,/* complain_on_overflow */
1064 bfd_elf_generic_reloc
, /* special_function */
1065 "R_PPC64_ADDR16_LO_DS",/* name */
1066 FALSE
, /* partial_inplace */
1068 0xfffc, /* dst_mask */
1069 FALSE
), /* pcrel_offset */
1071 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1072 HOWTO (R_PPC64_GOT16_DS
, /* type */
1074 1, /* size (0 = byte, 1 = short, 2 = long) */
1076 FALSE
, /* pc_relative */
1078 complain_overflow_signed
, /* complain_on_overflow */
1079 ppc64_elf_unhandled_reloc
, /* special_function */
1080 "R_PPC64_GOT16_DS", /* name */
1081 FALSE
, /* partial_inplace */
1083 0xfffc, /* dst_mask */
1084 FALSE
), /* pcrel_offset */
1086 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1087 HOWTO (R_PPC64_GOT16_LO_DS
, /* type */
1089 1, /* size (0 = byte, 1 = short, 2 = long) */
1091 FALSE
, /* pc_relative */
1093 complain_overflow_dont
, /* complain_on_overflow */
1094 ppc64_elf_unhandled_reloc
, /* special_function */
1095 "R_PPC64_GOT16_LO_DS", /* name */
1096 FALSE
, /* partial_inplace */
1098 0xfffc, /* dst_mask */
1099 FALSE
), /* pcrel_offset */
1101 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1102 HOWTO (R_PPC64_PLT16_LO_DS
, /* type */
1104 1, /* size (0 = byte, 1 = short, 2 = long) */
1106 FALSE
, /* pc_relative */
1108 complain_overflow_dont
, /* complain_on_overflow */
1109 ppc64_elf_unhandled_reloc
, /* special_function */
1110 "R_PPC64_PLT16_LO_DS", /* name */
1111 FALSE
, /* partial_inplace */
1113 0xfffc, /* dst_mask */
1114 FALSE
), /* pcrel_offset */
1116 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1117 HOWTO (R_PPC64_SECTOFF_DS
, /* type */
1119 1, /* size (0 = byte, 1 = short, 2 = long) */
1121 FALSE
, /* pc_relative */
1123 complain_overflow_bitfield
, /* complain_on_overflow */
1124 ppc64_elf_sectoff_reloc
, /* special_function */
1125 "R_PPC64_SECTOFF_DS", /* name */
1126 FALSE
, /* partial_inplace */
1128 0xfffc, /* dst_mask */
1129 FALSE
), /* pcrel_offset */
1131 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1132 HOWTO (R_PPC64_SECTOFF_LO_DS
, /* type */
1134 1, /* size (0 = byte, 1 = short, 2 = long) */
1136 FALSE
, /* pc_relative */
1138 complain_overflow_dont
, /* complain_on_overflow */
1139 ppc64_elf_sectoff_reloc
, /* special_function */
1140 "R_PPC64_SECTOFF_LO_DS",/* name */
1141 FALSE
, /* partial_inplace */
1143 0xfffc, /* dst_mask */
1144 FALSE
), /* pcrel_offset */
1146 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1147 HOWTO (R_PPC64_TOC16_DS
, /* type */
1149 1, /* size (0 = byte, 1 = short, 2 = long) */
1151 FALSE
, /* pc_relative */
1153 complain_overflow_signed
, /* complain_on_overflow */
1154 ppc64_elf_toc_reloc
, /* special_function */
1155 "R_PPC64_TOC16_DS", /* name */
1156 FALSE
, /* partial_inplace */
1158 0xfffc, /* dst_mask */
1159 FALSE
), /* pcrel_offset */
1161 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1162 HOWTO (R_PPC64_TOC16_LO_DS
, /* type */
1164 1, /* size (0 = byte, 1 = short, 2 = long) */
1166 FALSE
, /* pc_relative */
1168 complain_overflow_dont
, /* complain_on_overflow */
1169 ppc64_elf_toc_reloc
, /* special_function */
1170 "R_PPC64_TOC16_LO_DS", /* name */
1171 FALSE
, /* partial_inplace */
1173 0xfffc, /* dst_mask */
1174 FALSE
), /* pcrel_offset */
1176 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1177 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1178 HOWTO (R_PPC64_PLTGOT16_DS
, /* type */
1180 1, /* size (0 = byte, 1 = short, 2 = long) */
1182 FALSE
, /* pc_relative */
1184 complain_overflow_signed
, /* complain_on_overflow */
1185 ppc64_elf_unhandled_reloc
, /* special_function */
1186 "R_PPC64_PLTGOT16_DS", /* name */
1187 FALSE
, /* partial_inplace */
1189 0xfffc, /* dst_mask */
1190 FALSE
), /* pcrel_offset */
1192 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1193 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1194 HOWTO (R_PPC64_PLTGOT16_LO_DS
,/* type */
1196 1, /* size (0 = byte, 1 = short, 2 = long) */
1198 FALSE
, /* pc_relative */
1200 complain_overflow_dont
, /* complain_on_overflow */
1201 ppc64_elf_unhandled_reloc
, /* special_function */
1202 "R_PPC64_PLTGOT16_LO_DS",/* name */
1203 FALSE
, /* partial_inplace */
1205 0xfffc, /* dst_mask */
1206 FALSE
), /* pcrel_offset */
1208 /* Marker reloc for TLS. */
1211 2, /* size (0 = byte, 1 = short, 2 = long) */
1213 FALSE
, /* pc_relative */
1215 complain_overflow_dont
, /* complain_on_overflow */
1216 bfd_elf_generic_reloc
, /* special_function */
1217 "R_PPC64_TLS", /* name */
1218 FALSE
, /* partial_inplace */
1221 FALSE
), /* pcrel_offset */
1223 /* Computes the load module index of the load module that contains the
1224 definition of its TLS sym. */
1225 HOWTO (R_PPC64_DTPMOD64
,
1227 4, /* size (0 = byte, 1 = short, 2 = long) */
1229 FALSE
, /* pc_relative */
1231 complain_overflow_dont
, /* complain_on_overflow */
1232 ppc64_elf_unhandled_reloc
, /* special_function */
1233 "R_PPC64_DTPMOD64", /* name */
1234 FALSE
, /* partial_inplace */
1236 ONES (64), /* dst_mask */
1237 FALSE
), /* pcrel_offset */
1239 /* Computes a dtv-relative displacement, the difference between the value
1240 of sym+add and the base address of the thread-local storage block that
1241 contains the definition of sym, minus 0x8000. */
1242 HOWTO (R_PPC64_DTPREL64
,
1244 4, /* size (0 = byte, 1 = short, 2 = long) */
1246 FALSE
, /* pc_relative */
1248 complain_overflow_dont
, /* complain_on_overflow */
1249 ppc64_elf_unhandled_reloc
, /* special_function */
1250 "R_PPC64_DTPREL64", /* name */
1251 FALSE
, /* partial_inplace */
1253 ONES (64), /* dst_mask */
1254 FALSE
), /* pcrel_offset */
1256 /* A 16 bit dtprel reloc. */
1257 HOWTO (R_PPC64_DTPREL16
,
1259 1, /* size (0 = byte, 1 = short, 2 = long) */
1261 FALSE
, /* pc_relative */
1263 complain_overflow_signed
, /* complain_on_overflow */
1264 ppc64_elf_unhandled_reloc
, /* special_function */
1265 "R_PPC64_DTPREL16", /* name */
1266 FALSE
, /* partial_inplace */
1268 0xffff, /* dst_mask */
1269 FALSE
), /* pcrel_offset */
1271 /* Like DTPREL16, but no overflow. */
1272 HOWTO (R_PPC64_DTPREL16_LO
,
1274 1, /* size (0 = byte, 1 = short, 2 = long) */
1276 FALSE
, /* pc_relative */
1278 complain_overflow_dont
, /* complain_on_overflow */
1279 ppc64_elf_unhandled_reloc
, /* special_function */
1280 "R_PPC64_DTPREL16_LO", /* name */
1281 FALSE
, /* partial_inplace */
1283 0xffff, /* dst_mask */
1284 FALSE
), /* pcrel_offset */
1286 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1287 HOWTO (R_PPC64_DTPREL16_HI
,
1288 16, /* rightshift */
1289 1, /* size (0 = byte, 1 = short, 2 = long) */
1291 FALSE
, /* pc_relative */
1293 complain_overflow_dont
, /* complain_on_overflow */
1294 ppc64_elf_unhandled_reloc
, /* special_function */
1295 "R_PPC64_DTPREL16_HI", /* name */
1296 FALSE
, /* partial_inplace */
1298 0xffff, /* dst_mask */
1299 FALSE
), /* pcrel_offset */
1301 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1302 HOWTO (R_PPC64_DTPREL16_HA
,
1303 16, /* rightshift */
1304 1, /* size (0 = byte, 1 = short, 2 = long) */
1306 FALSE
, /* pc_relative */
1308 complain_overflow_dont
, /* complain_on_overflow */
1309 ppc64_elf_unhandled_reloc
, /* special_function */
1310 "R_PPC64_DTPREL16_HA", /* name */
1311 FALSE
, /* partial_inplace */
1313 0xffff, /* dst_mask */
1314 FALSE
), /* pcrel_offset */
1316 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1317 HOWTO (R_PPC64_DTPREL16_HIGHER
,
1318 32, /* rightshift */
1319 1, /* size (0 = byte, 1 = short, 2 = long) */
1321 FALSE
, /* pc_relative */
1323 complain_overflow_dont
, /* complain_on_overflow */
1324 ppc64_elf_unhandled_reloc
, /* special_function */
1325 "R_PPC64_DTPREL16_HIGHER", /* name */
1326 FALSE
, /* partial_inplace */
1328 0xffff, /* dst_mask */
1329 FALSE
), /* pcrel_offset */
1331 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1332 HOWTO (R_PPC64_DTPREL16_HIGHERA
,
1333 32, /* rightshift */
1334 1, /* size (0 = byte, 1 = short, 2 = long) */
1336 FALSE
, /* pc_relative */
1338 complain_overflow_dont
, /* complain_on_overflow */
1339 ppc64_elf_unhandled_reloc
, /* special_function */
1340 "R_PPC64_DTPREL16_HIGHERA", /* name */
1341 FALSE
, /* partial_inplace */
1343 0xffff, /* dst_mask */
1344 FALSE
), /* pcrel_offset */
1346 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1347 HOWTO (R_PPC64_DTPREL16_HIGHEST
,
1348 48, /* rightshift */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1351 FALSE
, /* pc_relative */
1353 complain_overflow_dont
, /* complain_on_overflow */
1354 ppc64_elf_unhandled_reloc
, /* special_function */
1355 "R_PPC64_DTPREL16_HIGHEST", /* name */
1356 FALSE
, /* partial_inplace */
1358 0xffff, /* dst_mask */
1359 FALSE
), /* pcrel_offset */
1361 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1362 HOWTO (R_PPC64_DTPREL16_HIGHESTA
,
1363 48, /* rightshift */
1364 1, /* size (0 = byte, 1 = short, 2 = long) */
1366 FALSE
, /* pc_relative */
1368 complain_overflow_dont
, /* complain_on_overflow */
1369 ppc64_elf_unhandled_reloc
, /* special_function */
1370 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1371 FALSE
, /* partial_inplace */
1373 0xffff, /* dst_mask */
1374 FALSE
), /* pcrel_offset */
1376 /* Like DTPREL16, but for insns with a DS field. */
1377 HOWTO (R_PPC64_DTPREL16_DS
,
1379 1, /* size (0 = byte, 1 = short, 2 = long) */
1381 FALSE
, /* pc_relative */
1383 complain_overflow_signed
, /* complain_on_overflow */
1384 ppc64_elf_unhandled_reloc
, /* special_function */
1385 "R_PPC64_DTPREL16_DS", /* name */
1386 FALSE
, /* partial_inplace */
1388 0xfffc, /* dst_mask */
1389 FALSE
), /* pcrel_offset */
1391 /* Like DTPREL16_DS, but no overflow. */
1392 HOWTO (R_PPC64_DTPREL16_LO_DS
,
1394 1, /* size (0 = byte, 1 = short, 2 = long) */
1396 FALSE
, /* pc_relative */
1398 complain_overflow_dont
, /* complain_on_overflow */
1399 ppc64_elf_unhandled_reloc
, /* special_function */
1400 "R_PPC64_DTPREL16_LO_DS", /* name */
1401 FALSE
, /* partial_inplace */
1403 0xfffc, /* dst_mask */
1404 FALSE
), /* pcrel_offset */
1406 /* Computes a tp-relative displacement, the difference between the value of
1407 sym+add and the value of the thread pointer (r13). */
1408 HOWTO (R_PPC64_TPREL64
,
1410 4, /* size (0 = byte, 1 = short, 2 = long) */
1412 FALSE
, /* pc_relative */
1414 complain_overflow_dont
, /* complain_on_overflow */
1415 ppc64_elf_unhandled_reloc
, /* special_function */
1416 "R_PPC64_TPREL64", /* name */
1417 FALSE
, /* partial_inplace */
1419 ONES (64), /* dst_mask */
1420 FALSE
), /* pcrel_offset */
1422 /* A 16 bit tprel reloc. */
1423 HOWTO (R_PPC64_TPREL16
,
1425 1, /* size (0 = byte, 1 = short, 2 = long) */
1427 FALSE
, /* pc_relative */
1429 complain_overflow_signed
, /* complain_on_overflow */
1430 ppc64_elf_unhandled_reloc
, /* special_function */
1431 "R_PPC64_TPREL16", /* name */
1432 FALSE
, /* partial_inplace */
1434 0xffff, /* dst_mask */
1435 FALSE
), /* pcrel_offset */
1437 /* Like TPREL16, but no overflow. */
1438 HOWTO (R_PPC64_TPREL16_LO
,
1440 1, /* size (0 = byte, 1 = short, 2 = long) */
1442 FALSE
, /* pc_relative */
1444 complain_overflow_dont
, /* complain_on_overflow */
1445 ppc64_elf_unhandled_reloc
, /* special_function */
1446 "R_PPC64_TPREL16_LO", /* name */
1447 FALSE
, /* partial_inplace */
1449 0xffff, /* dst_mask */
1450 FALSE
), /* pcrel_offset */
1452 /* Like TPREL16_LO, but next higher group of 16 bits. */
1453 HOWTO (R_PPC64_TPREL16_HI
,
1454 16, /* rightshift */
1455 1, /* size (0 = byte, 1 = short, 2 = long) */
1457 FALSE
, /* pc_relative */
1459 complain_overflow_dont
, /* complain_on_overflow */
1460 ppc64_elf_unhandled_reloc
, /* special_function */
1461 "R_PPC64_TPREL16_HI", /* name */
1462 FALSE
, /* partial_inplace */
1464 0xffff, /* dst_mask */
1465 FALSE
), /* pcrel_offset */
1467 /* Like TPREL16_HI, but adjust for low 16 bits. */
1468 HOWTO (R_PPC64_TPREL16_HA
,
1469 16, /* rightshift */
1470 1, /* size (0 = byte, 1 = short, 2 = long) */
1472 FALSE
, /* pc_relative */
1474 complain_overflow_dont
, /* complain_on_overflow */
1475 ppc64_elf_unhandled_reloc
, /* special_function */
1476 "R_PPC64_TPREL16_HA", /* name */
1477 FALSE
, /* partial_inplace */
1479 0xffff, /* dst_mask */
1480 FALSE
), /* pcrel_offset */
1482 /* Like TPREL16_HI, but next higher group of 16 bits. */
1483 HOWTO (R_PPC64_TPREL16_HIGHER
,
1484 32, /* rightshift */
1485 1, /* size (0 = byte, 1 = short, 2 = long) */
1487 FALSE
, /* pc_relative */
1489 complain_overflow_dont
, /* complain_on_overflow */
1490 ppc64_elf_unhandled_reloc
, /* special_function */
1491 "R_PPC64_TPREL16_HIGHER", /* name */
1492 FALSE
, /* partial_inplace */
1494 0xffff, /* dst_mask */
1495 FALSE
), /* pcrel_offset */
1497 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1498 HOWTO (R_PPC64_TPREL16_HIGHERA
,
1499 32, /* rightshift */
1500 1, /* size (0 = byte, 1 = short, 2 = long) */
1502 FALSE
, /* pc_relative */
1504 complain_overflow_dont
, /* complain_on_overflow */
1505 ppc64_elf_unhandled_reloc
, /* special_function */
1506 "R_PPC64_TPREL16_HIGHERA", /* name */
1507 FALSE
, /* partial_inplace */
1509 0xffff, /* dst_mask */
1510 FALSE
), /* pcrel_offset */
1512 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1513 HOWTO (R_PPC64_TPREL16_HIGHEST
,
1514 48, /* rightshift */
1515 1, /* size (0 = byte, 1 = short, 2 = long) */
1517 FALSE
, /* pc_relative */
1519 complain_overflow_dont
, /* complain_on_overflow */
1520 ppc64_elf_unhandled_reloc
, /* special_function */
1521 "R_PPC64_TPREL16_HIGHEST", /* name */
1522 FALSE
, /* partial_inplace */
1524 0xffff, /* dst_mask */
1525 FALSE
), /* pcrel_offset */
1527 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1528 HOWTO (R_PPC64_TPREL16_HIGHESTA
,
1529 48, /* rightshift */
1530 1, /* size (0 = byte, 1 = short, 2 = long) */
1532 FALSE
, /* pc_relative */
1534 complain_overflow_dont
, /* complain_on_overflow */
1535 ppc64_elf_unhandled_reloc
, /* special_function */
1536 "R_PPC64_TPREL16_HIGHESTA", /* name */
1537 FALSE
, /* partial_inplace */
1539 0xffff, /* dst_mask */
1540 FALSE
), /* pcrel_offset */
1542 /* Like TPREL16, but for insns with a DS field. */
1543 HOWTO (R_PPC64_TPREL16_DS
,
1545 1, /* size (0 = byte, 1 = short, 2 = long) */
1547 FALSE
, /* pc_relative */
1549 complain_overflow_signed
, /* complain_on_overflow */
1550 ppc64_elf_unhandled_reloc
, /* special_function */
1551 "R_PPC64_TPREL16_DS", /* name */
1552 FALSE
, /* partial_inplace */
1554 0xfffc, /* dst_mask */
1555 FALSE
), /* pcrel_offset */
1557 /* Like TPREL16_DS, but no overflow. */
1558 HOWTO (R_PPC64_TPREL16_LO_DS
,
1560 1, /* size (0 = byte, 1 = short, 2 = long) */
1562 FALSE
, /* pc_relative */
1564 complain_overflow_dont
, /* complain_on_overflow */
1565 ppc64_elf_unhandled_reloc
, /* special_function */
1566 "R_PPC64_TPREL16_LO_DS", /* name */
1567 FALSE
, /* partial_inplace */
1569 0xfffc, /* dst_mask */
1570 FALSE
), /* pcrel_offset */
1572 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1573 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1574 to the first entry relative to the TOC base (r2). */
1575 HOWTO (R_PPC64_GOT_TLSGD16
,
1577 1, /* size (0 = byte, 1 = short, 2 = long) */
1579 FALSE
, /* pc_relative */
1581 complain_overflow_signed
, /* complain_on_overflow */
1582 ppc64_elf_unhandled_reloc
, /* special_function */
1583 "R_PPC64_GOT_TLSGD16", /* name */
1584 FALSE
, /* partial_inplace */
1586 0xffff, /* dst_mask */
1587 FALSE
), /* pcrel_offset */
1589 /* Like GOT_TLSGD16, but no overflow. */
1590 HOWTO (R_PPC64_GOT_TLSGD16_LO
,
1592 1, /* size (0 = byte, 1 = short, 2 = long) */
1594 FALSE
, /* pc_relative */
1596 complain_overflow_dont
, /* complain_on_overflow */
1597 ppc64_elf_unhandled_reloc
, /* special_function */
1598 "R_PPC64_GOT_TLSGD16_LO", /* name */
1599 FALSE
, /* partial_inplace */
1601 0xffff, /* dst_mask */
1602 FALSE
), /* pcrel_offset */
1604 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1605 HOWTO (R_PPC64_GOT_TLSGD16_HI
,
1606 16, /* rightshift */
1607 1, /* size (0 = byte, 1 = short, 2 = long) */
1609 FALSE
, /* pc_relative */
1611 complain_overflow_dont
, /* complain_on_overflow */
1612 ppc64_elf_unhandled_reloc
, /* special_function */
1613 "R_PPC64_GOT_TLSGD16_HI", /* name */
1614 FALSE
, /* partial_inplace */
1616 0xffff, /* dst_mask */
1617 FALSE
), /* pcrel_offset */
1619 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1620 HOWTO (R_PPC64_GOT_TLSGD16_HA
,
1621 16, /* rightshift */
1622 1, /* size (0 = byte, 1 = short, 2 = long) */
1624 FALSE
, /* pc_relative */
1626 complain_overflow_dont
, /* complain_on_overflow */
1627 ppc64_elf_unhandled_reloc
, /* special_function */
1628 "R_PPC64_GOT_TLSGD16_HA", /* name */
1629 FALSE
, /* partial_inplace */
1631 0xffff, /* dst_mask */
1632 FALSE
), /* pcrel_offset */
1634 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1635 with values (sym+add)@dtpmod and zero, and computes the offset to the
1636 first entry relative to the TOC base (r2). */
1637 HOWTO (R_PPC64_GOT_TLSLD16
,
1639 1, /* size (0 = byte, 1 = short, 2 = long) */
1641 FALSE
, /* pc_relative */
1643 complain_overflow_signed
, /* complain_on_overflow */
1644 ppc64_elf_unhandled_reloc
, /* special_function */
1645 "R_PPC64_GOT_TLSLD16", /* name */
1646 FALSE
, /* partial_inplace */
1648 0xffff, /* dst_mask */
1649 FALSE
), /* pcrel_offset */
1651 /* Like GOT_TLSLD16, but no overflow. */
1652 HOWTO (R_PPC64_GOT_TLSLD16_LO
,
1654 1, /* size (0 = byte, 1 = short, 2 = long) */
1656 FALSE
, /* pc_relative */
1658 complain_overflow_dont
, /* complain_on_overflow */
1659 ppc64_elf_unhandled_reloc
, /* special_function */
1660 "R_PPC64_GOT_TLSLD16_LO", /* name */
1661 FALSE
, /* partial_inplace */
1663 0xffff, /* dst_mask */
1664 FALSE
), /* pcrel_offset */
1666 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1667 HOWTO (R_PPC64_GOT_TLSLD16_HI
,
1668 16, /* rightshift */
1669 1, /* size (0 = byte, 1 = short, 2 = long) */
1671 FALSE
, /* pc_relative */
1673 complain_overflow_dont
, /* complain_on_overflow */
1674 ppc64_elf_unhandled_reloc
, /* special_function */
1675 "R_PPC64_GOT_TLSLD16_HI", /* name */
1676 FALSE
, /* partial_inplace */
1678 0xffff, /* dst_mask */
1679 FALSE
), /* pcrel_offset */
1681 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1682 HOWTO (R_PPC64_GOT_TLSLD16_HA
,
1683 16, /* rightshift */
1684 1, /* size (0 = byte, 1 = short, 2 = long) */
1686 FALSE
, /* pc_relative */
1688 complain_overflow_dont
, /* complain_on_overflow */
1689 ppc64_elf_unhandled_reloc
, /* special_function */
1690 "R_PPC64_GOT_TLSLD16_HA", /* name */
1691 FALSE
, /* partial_inplace */
1693 0xffff, /* dst_mask */
1694 FALSE
), /* pcrel_offset */
1696 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1697 the offset to the entry relative to the TOC base (r2). */
1698 HOWTO (R_PPC64_GOT_DTPREL16_DS
,
1700 1, /* size (0 = byte, 1 = short, 2 = long) */
1702 FALSE
, /* pc_relative */
1704 complain_overflow_signed
, /* complain_on_overflow */
1705 ppc64_elf_unhandled_reloc
, /* special_function */
1706 "R_PPC64_GOT_DTPREL16_DS", /* name */
1707 FALSE
, /* partial_inplace */
1709 0xfffc, /* dst_mask */
1710 FALSE
), /* pcrel_offset */
1712 /* Like GOT_DTPREL16_DS, but no overflow. */
1713 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS
,
1715 1, /* size (0 = byte, 1 = short, 2 = long) */
1717 FALSE
, /* pc_relative */
1719 complain_overflow_dont
, /* complain_on_overflow */
1720 ppc64_elf_unhandled_reloc
, /* special_function */
1721 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1722 FALSE
, /* partial_inplace */
1724 0xfffc, /* dst_mask */
1725 FALSE
), /* pcrel_offset */
1727 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1728 HOWTO (R_PPC64_GOT_DTPREL16_HI
,
1729 16, /* rightshift */
1730 1, /* size (0 = byte, 1 = short, 2 = long) */
1732 FALSE
, /* pc_relative */
1734 complain_overflow_dont
, /* complain_on_overflow */
1735 ppc64_elf_unhandled_reloc
, /* special_function */
1736 "R_PPC64_GOT_DTPREL16_HI", /* name */
1737 FALSE
, /* partial_inplace */
1739 0xffff, /* dst_mask */
1740 FALSE
), /* pcrel_offset */
1742 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1743 HOWTO (R_PPC64_GOT_DTPREL16_HA
,
1744 16, /* rightshift */
1745 1, /* size (0 = byte, 1 = short, 2 = long) */
1747 FALSE
, /* pc_relative */
1749 complain_overflow_dont
, /* complain_on_overflow */
1750 ppc64_elf_unhandled_reloc
, /* special_function */
1751 "R_PPC64_GOT_DTPREL16_HA", /* name */
1752 FALSE
, /* partial_inplace */
1754 0xffff, /* dst_mask */
1755 FALSE
), /* pcrel_offset */
1757 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1758 offset to the entry relative to the TOC base (r2). */
1759 HOWTO (R_PPC64_GOT_TPREL16_DS
,
1761 1, /* size (0 = byte, 1 = short, 2 = long) */
1763 FALSE
, /* pc_relative */
1765 complain_overflow_signed
, /* complain_on_overflow */
1766 ppc64_elf_unhandled_reloc
, /* special_function */
1767 "R_PPC64_GOT_TPREL16_DS", /* name */
1768 FALSE
, /* partial_inplace */
1770 0xfffc, /* dst_mask */
1771 FALSE
), /* pcrel_offset */
1773 /* Like GOT_TPREL16_DS, but no overflow. */
1774 HOWTO (R_PPC64_GOT_TPREL16_LO_DS
,
1776 1, /* size (0 = byte, 1 = short, 2 = long) */
1778 FALSE
, /* pc_relative */
1780 complain_overflow_dont
, /* complain_on_overflow */
1781 ppc64_elf_unhandled_reloc
, /* special_function */
1782 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1783 FALSE
, /* partial_inplace */
1785 0xfffc, /* dst_mask */
1786 FALSE
), /* pcrel_offset */
1788 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1789 HOWTO (R_PPC64_GOT_TPREL16_HI
,
1790 16, /* rightshift */
1791 1, /* size (0 = byte, 1 = short, 2 = long) */
1793 FALSE
, /* pc_relative */
1795 complain_overflow_dont
, /* complain_on_overflow */
1796 ppc64_elf_unhandled_reloc
, /* special_function */
1797 "R_PPC64_GOT_TPREL16_HI", /* name */
1798 FALSE
, /* partial_inplace */
1800 0xffff, /* dst_mask */
1801 FALSE
), /* pcrel_offset */
1803 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1804 HOWTO (R_PPC64_GOT_TPREL16_HA
,
1805 16, /* rightshift */
1806 1, /* size (0 = byte, 1 = short, 2 = long) */
1808 FALSE
, /* pc_relative */
1810 complain_overflow_dont
, /* complain_on_overflow */
1811 ppc64_elf_unhandled_reloc
, /* special_function */
1812 "R_PPC64_GOT_TPREL16_HA", /* name */
1813 FALSE
, /* partial_inplace */
1815 0xffff, /* dst_mask */
1816 FALSE
), /* pcrel_offset */
1818 /* GNU extension to record C++ vtable hierarchy. */
1819 HOWTO (R_PPC64_GNU_VTINHERIT
, /* type */
1821 0, /* size (0 = byte, 1 = short, 2 = long) */
1823 FALSE
, /* pc_relative */
1825 complain_overflow_dont
, /* complain_on_overflow */
1826 NULL
, /* special_function */
1827 "R_PPC64_GNU_VTINHERIT", /* name */
1828 FALSE
, /* partial_inplace */
1831 FALSE
), /* pcrel_offset */
1833 /* GNU extension to record C++ vtable member usage. */
1834 HOWTO (R_PPC64_GNU_VTENTRY
, /* type */
1836 0, /* size (0 = byte, 1 = short, 2 = long) */
1838 FALSE
, /* pc_relative */
1840 complain_overflow_dont
, /* complain_on_overflow */
1841 NULL
, /* special_function */
1842 "R_PPC64_GNU_VTENTRY", /* name */
1843 FALSE
, /* partial_inplace */
1846 FALSE
), /* pcrel_offset */
1850 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
1854 ppc_howto_init (void)
1856 unsigned int i
, type
;
1859 i
< sizeof (ppc64_elf_howto_raw
) / sizeof (ppc64_elf_howto_raw
[0]);
1862 type
= ppc64_elf_howto_raw
[i
].type
;
1863 BFD_ASSERT (type
< (sizeof (ppc64_elf_howto_table
)
1864 / sizeof (ppc64_elf_howto_table
[0])));
1865 ppc64_elf_howto_table
[type
] = &ppc64_elf_howto_raw
[i
];
1869 static reloc_howto_type
*
1870 ppc64_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
1871 bfd_reloc_code_real_type code
)
1873 enum elf_ppc64_reloc_type r
= R_PPC64_NONE
;
1875 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
1876 /* Initialize howto table if needed. */
1884 case BFD_RELOC_NONE
: r
= R_PPC64_NONE
;
1886 case BFD_RELOC_32
: r
= R_PPC64_ADDR32
;
1888 case BFD_RELOC_PPC_BA26
: r
= R_PPC64_ADDR24
;
1890 case BFD_RELOC_16
: r
= R_PPC64_ADDR16
;
1892 case BFD_RELOC_LO16
: r
= R_PPC64_ADDR16_LO
;
1894 case BFD_RELOC_HI16
: r
= R_PPC64_ADDR16_HI
;
1896 case BFD_RELOC_HI16_S
: r
= R_PPC64_ADDR16_HA
;
1898 case BFD_RELOC_PPC_BA16
: r
= R_PPC64_ADDR14
;
1900 case BFD_RELOC_PPC_BA16_BRTAKEN
: r
= R_PPC64_ADDR14_BRTAKEN
;
1902 case BFD_RELOC_PPC_BA16_BRNTAKEN
: r
= R_PPC64_ADDR14_BRNTAKEN
;
1904 case BFD_RELOC_PPC_B26
: r
= R_PPC64_REL24
;
1906 case BFD_RELOC_PPC_B16
: r
= R_PPC64_REL14
;
1908 case BFD_RELOC_PPC_B16_BRTAKEN
: r
= R_PPC64_REL14_BRTAKEN
;
1910 case BFD_RELOC_PPC_B16_BRNTAKEN
: r
= R_PPC64_REL14_BRNTAKEN
;
1912 case BFD_RELOC_16_GOTOFF
: r
= R_PPC64_GOT16
;
1914 case BFD_RELOC_LO16_GOTOFF
: r
= R_PPC64_GOT16_LO
;
1916 case BFD_RELOC_HI16_GOTOFF
: r
= R_PPC64_GOT16_HI
;
1918 case BFD_RELOC_HI16_S_GOTOFF
: r
= R_PPC64_GOT16_HA
;
1920 case BFD_RELOC_PPC_COPY
: r
= R_PPC64_COPY
;
1922 case BFD_RELOC_PPC_GLOB_DAT
: r
= R_PPC64_GLOB_DAT
;
1924 case BFD_RELOC_32_PCREL
: r
= R_PPC64_REL32
;
1926 case BFD_RELOC_32_PLTOFF
: r
= R_PPC64_PLT32
;
1928 case BFD_RELOC_32_PLT_PCREL
: r
= R_PPC64_PLTREL32
;
1930 case BFD_RELOC_LO16_PLTOFF
: r
= R_PPC64_PLT16_LO
;
1932 case BFD_RELOC_HI16_PLTOFF
: r
= R_PPC64_PLT16_HI
;
1934 case BFD_RELOC_HI16_S_PLTOFF
: r
= R_PPC64_PLT16_HA
;
1936 case BFD_RELOC_16_BASEREL
: r
= R_PPC64_SECTOFF
;
1938 case BFD_RELOC_LO16_BASEREL
: r
= R_PPC64_SECTOFF_LO
;
1940 case BFD_RELOC_HI16_BASEREL
: r
= R_PPC64_SECTOFF_HI
;
1942 case BFD_RELOC_HI16_S_BASEREL
: r
= R_PPC64_SECTOFF_HA
;
1944 case BFD_RELOC_CTOR
: r
= R_PPC64_ADDR64
;
1946 case BFD_RELOC_64
: r
= R_PPC64_ADDR64
;
1948 case BFD_RELOC_PPC64_HIGHER
: r
= R_PPC64_ADDR16_HIGHER
;
1950 case BFD_RELOC_PPC64_HIGHER_S
: r
= R_PPC64_ADDR16_HIGHERA
;
1952 case BFD_RELOC_PPC64_HIGHEST
: r
= R_PPC64_ADDR16_HIGHEST
;
1954 case BFD_RELOC_PPC64_HIGHEST_S
: r
= R_PPC64_ADDR16_HIGHESTA
;
1956 case BFD_RELOC_64_PCREL
: r
= R_PPC64_REL64
;
1958 case BFD_RELOC_64_PLTOFF
: r
= R_PPC64_PLT64
;
1960 case BFD_RELOC_64_PLT_PCREL
: r
= R_PPC64_PLTREL64
;
1962 case BFD_RELOC_PPC_TOC16
: r
= R_PPC64_TOC16
;
1964 case BFD_RELOC_PPC64_TOC16_LO
: r
= R_PPC64_TOC16_LO
;
1966 case BFD_RELOC_PPC64_TOC16_HI
: r
= R_PPC64_TOC16_HI
;
1968 case BFD_RELOC_PPC64_TOC16_HA
: r
= R_PPC64_TOC16_HA
;
1970 case BFD_RELOC_PPC64_TOC
: r
= R_PPC64_TOC
;
1972 case BFD_RELOC_PPC64_PLTGOT16
: r
= R_PPC64_PLTGOT16
;
1974 case BFD_RELOC_PPC64_PLTGOT16_LO
: r
= R_PPC64_PLTGOT16_LO
;
1976 case BFD_RELOC_PPC64_PLTGOT16_HI
: r
= R_PPC64_PLTGOT16_HI
;
1978 case BFD_RELOC_PPC64_PLTGOT16_HA
: r
= R_PPC64_PLTGOT16_HA
;
1980 case BFD_RELOC_PPC64_ADDR16_DS
: r
= R_PPC64_ADDR16_DS
;
1982 case BFD_RELOC_PPC64_ADDR16_LO_DS
: r
= R_PPC64_ADDR16_LO_DS
;
1984 case BFD_RELOC_PPC64_GOT16_DS
: r
= R_PPC64_GOT16_DS
;
1986 case BFD_RELOC_PPC64_GOT16_LO_DS
: r
= R_PPC64_GOT16_LO_DS
;
1988 case BFD_RELOC_PPC64_PLT16_LO_DS
: r
= R_PPC64_PLT16_LO_DS
;
1990 case BFD_RELOC_PPC64_SECTOFF_DS
: r
= R_PPC64_SECTOFF_DS
;
1992 case BFD_RELOC_PPC64_SECTOFF_LO_DS
: r
= R_PPC64_SECTOFF_LO_DS
;
1994 case BFD_RELOC_PPC64_TOC16_DS
: r
= R_PPC64_TOC16_DS
;
1996 case BFD_RELOC_PPC64_TOC16_LO_DS
: r
= R_PPC64_TOC16_LO_DS
;
1998 case BFD_RELOC_PPC64_PLTGOT16_DS
: r
= R_PPC64_PLTGOT16_DS
;
2000 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
: r
= R_PPC64_PLTGOT16_LO_DS
;
2002 case BFD_RELOC_PPC_TLS
: r
= R_PPC64_TLS
;
2004 case BFD_RELOC_PPC_DTPMOD
: r
= R_PPC64_DTPMOD64
;
2006 case BFD_RELOC_PPC_TPREL16
: r
= R_PPC64_TPREL16
;
2008 case BFD_RELOC_PPC_TPREL16_LO
: r
= R_PPC64_TPREL16_LO
;
2010 case BFD_RELOC_PPC_TPREL16_HI
: r
= R_PPC64_TPREL16_HI
;
2012 case BFD_RELOC_PPC_TPREL16_HA
: r
= R_PPC64_TPREL16_HA
;
2014 case BFD_RELOC_PPC_TPREL
: r
= R_PPC64_TPREL64
;
2016 case BFD_RELOC_PPC_DTPREL16
: r
= R_PPC64_DTPREL16
;
2018 case BFD_RELOC_PPC_DTPREL16_LO
: r
= R_PPC64_DTPREL16_LO
;
2020 case BFD_RELOC_PPC_DTPREL16_HI
: r
= R_PPC64_DTPREL16_HI
;
2022 case BFD_RELOC_PPC_DTPREL16_HA
: r
= R_PPC64_DTPREL16_HA
;
2024 case BFD_RELOC_PPC_DTPREL
: r
= R_PPC64_DTPREL64
;
2026 case BFD_RELOC_PPC_GOT_TLSGD16
: r
= R_PPC64_GOT_TLSGD16
;
2028 case BFD_RELOC_PPC_GOT_TLSGD16_LO
: r
= R_PPC64_GOT_TLSGD16_LO
;
2030 case BFD_RELOC_PPC_GOT_TLSGD16_HI
: r
= R_PPC64_GOT_TLSGD16_HI
;
2032 case BFD_RELOC_PPC_GOT_TLSGD16_HA
: r
= R_PPC64_GOT_TLSGD16_HA
;
2034 case BFD_RELOC_PPC_GOT_TLSLD16
: r
= R_PPC64_GOT_TLSLD16
;
2036 case BFD_RELOC_PPC_GOT_TLSLD16_LO
: r
= R_PPC64_GOT_TLSLD16_LO
;
2038 case BFD_RELOC_PPC_GOT_TLSLD16_HI
: r
= R_PPC64_GOT_TLSLD16_HI
;
2040 case BFD_RELOC_PPC_GOT_TLSLD16_HA
: r
= R_PPC64_GOT_TLSLD16_HA
;
2042 case BFD_RELOC_PPC_GOT_TPREL16
: r
= R_PPC64_GOT_TPREL16_DS
;
2044 case BFD_RELOC_PPC_GOT_TPREL16_LO
: r
= R_PPC64_GOT_TPREL16_LO_DS
;
2046 case BFD_RELOC_PPC_GOT_TPREL16_HI
: r
= R_PPC64_GOT_TPREL16_HI
;
2048 case BFD_RELOC_PPC_GOT_TPREL16_HA
: r
= R_PPC64_GOT_TPREL16_HA
;
2050 case BFD_RELOC_PPC_GOT_DTPREL16
: r
= R_PPC64_GOT_DTPREL16_DS
;
2052 case BFD_RELOC_PPC_GOT_DTPREL16_LO
: r
= R_PPC64_GOT_DTPREL16_LO_DS
;
2054 case BFD_RELOC_PPC_GOT_DTPREL16_HI
: r
= R_PPC64_GOT_DTPREL16_HI
;
2056 case BFD_RELOC_PPC_GOT_DTPREL16_HA
: r
= R_PPC64_GOT_DTPREL16_HA
;
2058 case BFD_RELOC_PPC64_TPREL16_DS
: r
= R_PPC64_TPREL16_DS
;
2060 case BFD_RELOC_PPC64_TPREL16_LO_DS
: r
= R_PPC64_TPREL16_LO_DS
;
2062 case BFD_RELOC_PPC64_TPREL16_HIGHER
: r
= R_PPC64_TPREL16_HIGHER
;
2064 case BFD_RELOC_PPC64_TPREL16_HIGHERA
: r
= R_PPC64_TPREL16_HIGHERA
;
2066 case BFD_RELOC_PPC64_TPREL16_HIGHEST
: r
= R_PPC64_TPREL16_HIGHEST
;
2068 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
: r
= R_PPC64_TPREL16_HIGHESTA
;
2070 case BFD_RELOC_PPC64_DTPREL16_DS
: r
= R_PPC64_DTPREL16_DS
;
2072 case BFD_RELOC_PPC64_DTPREL16_LO_DS
: r
= R_PPC64_DTPREL16_LO_DS
;
2074 case BFD_RELOC_PPC64_DTPREL16_HIGHER
: r
= R_PPC64_DTPREL16_HIGHER
;
2076 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
: r
= R_PPC64_DTPREL16_HIGHERA
;
2078 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
: r
= R_PPC64_DTPREL16_HIGHEST
;
2080 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
: r
= R_PPC64_DTPREL16_HIGHESTA
;
2082 case BFD_RELOC_VTABLE_INHERIT
: r
= R_PPC64_GNU_VTINHERIT
;
2084 case BFD_RELOC_VTABLE_ENTRY
: r
= R_PPC64_GNU_VTENTRY
;
2088 return ppc64_elf_howto_table
[r
];
2091 /* Set the howto pointer for a PowerPC ELF reloc. */
2094 ppc64_elf_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
2095 Elf_Internal_Rela
*dst
)
2099 /* Initialize howto table if needed. */
2100 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
2103 type
= ELF64_R_TYPE (dst
->r_info
);
2104 BFD_ASSERT (type
< (sizeof (ppc64_elf_howto_table
)
2105 / sizeof (ppc64_elf_howto_table
[0])));
2106 cache_ptr
->howto
= ppc64_elf_howto_table
[type
];
2109 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2111 static bfd_reloc_status_type
2112 ppc64_elf_ha_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2113 void *data
, asection
*input_section
,
2114 bfd
*output_bfd
, char **error_message
)
2116 /* If this is a relocatable link (output_bfd test tells us), just
2117 call the generic function. Any adjustment will be done at final
2119 if (output_bfd
!= NULL
)
2120 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2121 input_section
, output_bfd
, error_message
);
2123 /* Adjust the addend for sign extension of the low 16 bits.
2124 We won't actually be using the low 16 bits, so trashing them
2126 reloc_entry
->addend
+= 0x8000;
2127 return bfd_reloc_continue
;
2130 static bfd_reloc_status_type
2131 ppc64_elf_brtaken_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2132 void *data
, asection
*input_section
,
2133 bfd
*output_bfd
, char **error_message
)
2136 enum elf_ppc64_reloc_type r_type
;
2137 bfd_size_type octets
;
2138 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
2139 bfd_boolean is_power4
= FALSE
;
2141 /* If this is a relocatable link (output_bfd test tells us), just
2142 call the generic function. Any adjustment will be done at final
2144 if (output_bfd
!= NULL
)
2145 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2146 input_section
, output_bfd
, error_message
);
2148 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2149 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ octets
);
2150 insn
&= ~(0x01 << 21);
2151 r_type
= reloc_entry
->howto
->type
;
2152 if (r_type
== R_PPC64_ADDR14_BRTAKEN
2153 || r_type
== R_PPC64_REL14_BRTAKEN
)
2154 insn
|= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2158 /* Set 'a' bit. This is 0b00010 in BO field for branch
2159 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2160 for branch on CTR insns (BO == 1a00t or 1a01t). */
2161 if ((insn
& (0x14 << 21)) == (0x04 << 21))
2163 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
2166 return bfd_reloc_continue
;
2173 if (!bfd_is_com_section (symbol
->section
))
2174 target
= symbol
->value
;
2175 target
+= symbol
->section
->output_section
->vma
;
2176 target
+= symbol
->section
->output_offset
;
2177 target
+= reloc_entry
->addend
;
2179 from
= (reloc_entry
->address
2180 + input_section
->output_offset
2181 + input_section
->output_section
->vma
);
2183 /* Invert 'y' bit if not the default. */
2184 if ((bfd_signed_vma
) (target
- from
) < 0)
2187 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ octets
);
2188 return bfd_reloc_continue
;
2191 static bfd_reloc_status_type
2192 ppc64_elf_sectoff_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2193 void *data
, asection
*input_section
,
2194 bfd
*output_bfd
, char **error_message
)
2196 /* If this is a relocatable link (output_bfd test tells us), just
2197 call the generic function. Any adjustment will be done at final
2199 if (output_bfd
!= NULL
)
2200 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2201 input_section
, output_bfd
, error_message
);
2203 /* Subtract the symbol section base address. */
2204 reloc_entry
->addend
-= symbol
->section
->output_section
->vma
;
2205 return bfd_reloc_continue
;
2208 static bfd_reloc_status_type
2209 ppc64_elf_sectoff_ha_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2210 void *data
, asection
*input_section
,
2211 bfd
*output_bfd
, char **error_message
)
2213 /* If this is a relocatable link (output_bfd test tells us), just
2214 call the generic function. Any adjustment will be done at final
2216 if (output_bfd
!= NULL
)
2217 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2218 input_section
, output_bfd
, error_message
);
2220 /* Subtract the symbol section base address. */
2221 reloc_entry
->addend
-= symbol
->section
->output_section
->vma
;
2223 /* Adjust the addend for sign extension of the low 16 bits. */
2224 reloc_entry
->addend
+= 0x8000;
2225 return bfd_reloc_continue
;
2228 static bfd_reloc_status_type
2229 ppc64_elf_toc_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2230 void *data
, asection
*input_section
,
2231 bfd
*output_bfd
, char **error_message
)
2235 /* If this is a relocatable link (output_bfd test tells us), just
2236 call the generic function. Any adjustment will be done at final
2238 if (output_bfd
!= NULL
)
2239 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2240 input_section
, output_bfd
, error_message
);
2242 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2244 TOCstart
= ppc64_elf_toc (input_section
->output_section
->owner
);
2246 /* Subtract the TOC base address. */
2247 reloc_entry
->addend
-= TOCstart
+ TOC_BASE_OFF
;
2248 return bfd_reloc_continue
;
2251 static bfd_reloc_status_type
2252 ppc64_elf_toc_ha_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2253 void *data
, asection
*input_section
,
2254 bfd
*output_bfd
, char **error_message
)
2258 /* If this is a relocatable link (output_bfd test tells us), just
2259 call the generic function. Any adjustment will be done at final
2261 if (output_bfd
!= NULL
)
2262 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2263 input_section
, output_bfd
, error_message
);
2265 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2267 TOCstart
= ppc64_elf_toc (input_section
->output_section
->owner
);
2269 /* Subtract the TOC base address. */
2270 reloc_entry
->addend
-= TOCstart
+ TOC_BASE_OFF
;
2272 /* Adjust the addend for sign extension of the low 16 bits. */
2273 reloc_entry
->addend
+= 0x8000;
2274 return bfd_reloc_continue
;
2277 static bfd_reloc_status_type
2278 ppc64_elf_toc64_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2279 void *data
, asection
*input_section
,
2280 bfd
*output_bfd
, char **error_message
)
2283 bfd_size_type octets
;
2285 /* If this is a relocatable link (output_bfd test tells us), just
2286 call the generic function. Any adjustment will be done at final
2288 if (output_bfd
!= NULL
)
2289 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2290 input_section
, output_bfd
, error_message
);
2292 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2294 TOCstart
= ppc64_elf_toc (input_section
->output_section
->owner
);
2296 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2297 bfd_put_64 (abfd
, TOCstart
+ TOC_BASE_OFF
, (bfd_byte
*) data
+ octets
);
2298 return bfd_reloc_ok
;
2301 static bfd_reloc_status_type
2302 ppc64_elf_unhandled_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2303 void *data
, asection
*input_section
,
2304 bfd
*output_bfd
, char **error_message
)
2306 /* If this is a relocatable link (output_bfd test tells us), just
2307 call the generic function. Any adjustment will be done at final
2309 if (output_bfd
!= NULL
)
2310 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2311 input_section
, output_bfd
, error_message
);
2313 if (error_message
!= NULL
)
2315 static char buf
[60];
2316 sprintf (buf
, "generic linker can't handle %s",
2317 reloc_entry
->howto
->name
);
2318 *error_message
= buf
;
2320 return bfd_reloc_dangerous
;
2323 struct ppc64_elf_obj_tdata
2325 struct elf_obj_tdata elf
;
2327 /* Shortcuts to dynamic linker sections. */
2331 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2332 sections means we potentially need one of these for each input bfd. */
2334 bfd_signed_vma refcount
;
2339 #define ppc64_elf_tdata(bfd) \
2340 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2342 #define ppc64_tlsld_got(bfd) \
2343 (&ppc64_elf_tdata (bfd)->tlsld_got)
2345 /* Override the generic function because we store some extras. */
2348 ppc64_elf_mkobject (bfd
*abfd
)
2350 bfd_size_type amt
= sizeof (struct ppc64_elf_obj_tdata
);
2351 abfd
->tdata
.any
= bfd_zalloc (abfd
, amt
);
2352 if (abfd
->tdata
.any
== NULL
)
2357 /* Fix bad default arch selected for a 64 bit input bfd when the
2358 default is 32 bit. */
2361 ppc64_elf_object_p (bfd
*abfd
)
2363 if (abfd
->arch_info
->the_default
&& abfd
->arch_info
->bits_per_word
== 32)
2365 Elf_Internal_Ehdr
*i_ehdr
= elf_elfheader (abfd
);
2367 if (i_ehdr
->e_ident
[EI_CLASS
] == ELFCLASS64
)
2369 /* Relies on arch after 32 bit default being 64 bit default. */
2370 abfd
->arch_info
= abfd
->arch_info
->next
;
2371 BFD_ASSERT (abfd
->arch_info
->bits_per_word
== 64);
2377 /* Support for core dump NOTE sections. */
2380 ppc64_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
2382 size_t offset
, raw_size
;
2384 if (note
->descsz
!= 504)
2388 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
2391 elf_tdata (abfd
)->core_pid
= bfd_get_32 (abfd
, note
->descdata
+ 32);
2397 /* Make a ".reg/999" section. */
2398 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
2399 raw_size
, note
->descpos
+ offset
);
2403 ppc64_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
2405 if (note
->descsz
!= 136)
2408 elf_tdata (abfd
)->core_program
2409 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 40, 16);
2410 elf_tdata (abfd
)->core_command
2411 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 56, 80);
2416 /* Merge backend specific data from an object file to the output
2417 object file when linking. */
2420 ppc64_elf_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
2422 /* Check if we have the same endianess. */
2423 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2424 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2425 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2429 if (bfd_big_endian (ibfd
))
2430 msg
= _("%s: compiled for a big endian system "
2431 "and target is little endian");
2433 msg
= _("%s: compiled for a little endian system "
2434 "and target is big endian");
2436 (*_bfd_error_handler
) (msg
, bfd_archive_filename (ibfd
));
2438 bfd_set_error (bfd_error_wrong_format
);
2445 /* Add extra PPC sections. */
2447 static struct bfd_elf_special_section
const ppc64_elf_special_sections
[]=
2449 { ".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
2450 { ".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
2451 { ".plt", 4, 0, SHT_NOBITS
, 0 },
2452 { ".toc", 4, 0, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
2453 { ".toc1", 5, 0, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
2454 { ".tocbss", 7, 0, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
2455 { NULL
, 0, 0, 0, 0 }
2458 struct _ppc64_elf_section_data
2460 struct bfd_elf_section_data elf
;
2462 /* An array with one entry for each opd function descriptor. */
2465 /* Points to the function code section for local opd entries. */
2466 asection
**func_sec
;
2467 /* After editing .opd, adjust references to opd local syms. */
2471 /* An array for toc sections, indexed by offset/8.
2472 Specifies the relocation symbol index used at a given toc offset. */
2476 #define ppc64_elf_section_data(sec) \
2477 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2480 ppc64_elf_new_section_hook (bfd
*abfd
, asection
*sec
)
2482 struct _ppc64_elf_section_data
*sdata
;
2483 bfd_size_type amt
= sizeof (*sdata
);
2485 sdata
= bfd_zalloc (abfd
, amt
);
2488 sec
->used_by_bfd
= sdata
;
2490 return _bfd_elf_new_section_hook (abfd
, sec
);
2493 /* The following functions are specific to the ELF linker, while
2494 functions above are used generally. Those named ppc64_elf_* are
2495 called by the main ELF linker code. They appear in this file more
2496 or less in the order in which they are called. eg.
2497 ppc64_elf_check_relocs is called early in the link process,
2498 ppc64_elf_finish_dynamic_sections is one of the last functions
2501 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2502 functions have both a function code symbol and a function descriptor
2503 symbol. A call to foo in a relocatable object file looks like:
2510 The function definition in another object file might be:
2514 . .quad .TOC.@tocbase
2520 When the linker resolves the call during a static link, the branch
2521 unsurprisingly just goes to .foo and the .opd information is unused.
2522 If the function definition is in a shared library, things are a little
2523 different: The call goes via a plt call stub, the opd information gets
2524 copied to the plt, and the linker patches the nop.
2532 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
2533 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
2534 . std 2,40(1) # this is the general idea
2542 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2544 The "reloc ()" notation is supposed to indicate that the linker emits
2545 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2548 What are the difficulties here? Well, firstly, the relocations
2549 examined by the linker in check_relocs are against the function code
2550 sym .foo, while the dynamic relocation in the plt is emitted against
2551 the function descriptor symbol, foo. Somewhere along the line, we need
2552 to carefully copy dynamic link information from one symbol to the other.
2553 Secondly, the generic part of the elf linker will make .foo a dynamic
2554 symbol as is normal for most other backends. We need foo dynamic
2555 instead, at least for an application final link. However, when
2556 creating a shared library containing foo, we need to have both symbols
2557 dynamic so that references to .foo are satisfied during the early
2558 stages of linking. Otherwise the linker might decide to pull in a
2559 definition from some other object, eg. a static library. */
2561 /* The linker needs to keep track of the number of relocs that it
2562 decides to copy as dynamic relocs in check_relocs for each symbol.
2563 This is so that it can later discard them if they are found to be
2564 unnecessary. We store the information in a field extending the
2565 regular ELF linker hash table. */
2567 struct ppc_dyn_relocs
2569 struct ppc_dyn_relocs
*next
;
2571 /* The input section of the reloc. */
2574 /* Total number of relocs copied for the input section. */
2575 bfd_size_type count
;
2577 /* Number of pc-relative relocs copied for the input section. */
2578 bfd_size_type pc_count
;
2581 /* Track GOT entries needed for a given symbol. We might need more
2582 than one got entry per symbol. */
2585 struct got_entry
*next
;
2587 /* The symbol addend that we'll be placing in the GOT. */
2590 /* Unlike other ELF targets, we use separate GOT entries for the same
2591 symbol referenced from different input files. This is to support
2592 automatic multiple TOC/GOT sections, where the TOC base can vary
2593 from one input file to another.
2595 Point to the BFD owning this GOT entry. */
2598 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2599 TLS_TPREL or TLS_DTPREL for tls entries. */
2602 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2605 bfd_signed_vma refcount
;
2610 /* The same for PLT. */
2613 struct plt_entry
*next
;
2619 bfd_signed_vma refcount
;
2624 /* Of those relocs that might be copied as dynamic relocs, this macro
2625 selects those that must be copied when linking a shared library,
2626 even when the symbol is local. */
2628 #define MUST_BE_DYN_RELOC(RTYPE) \
2629 ((RTYPE) != R_PPC64_REL32 \
2630 && (RTYPE) != R_PPC64_REL64 \
2631 && (RTYPE) != R_PPC64_REL30)
2633 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2634 copying dynamic variables from a shared lib into an app's dynbss
2635 section, and instead use a dynamic relocation to point into the
2636 shared lib. With code that gcc generates, it's vital that this be
2637 enabled; In the PowerPC64 ABI, the address of a function is actually
2638 the address of a function descriptor, which resides in the .opd
2639 section. gcc uses the descriptor directly rather than going via the
2640 GOT as some other ABI's do, which means that initialized function
2641 pointers must reference the descriptor. Thus, a function pointer
2642 initialized to the address of a function in a shared library will
2643 either require a copy reloc, or a dynamic reloc. Using a copy reloc
2644 redefines the function desctriptor symbol to point to the copy. This
2645 presents a problem as a plt entry for that function is also
2646 initialized from the function descriptor symbol and the copy reloc
2647 may not be initialized first. */
2648 #define ELIMINATE_COPY_RELOCS 1
2650 /* Section name for stubs is the associated section name plus this
2652 #define STUB_SUFFIX ".stub"
2655 ppc_stub_long_branch:
2656 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2657 destination, but a 24 bit branch in a stub section will reach.
2660 ppc_stub_plt_branch:
2661 Similar to the above, but a 24 bit branch in the stub section won't
2662 reach its destination.
2663 . addis %r12,%r2,xxx@toc@ha
2664 . ld %r11,xxx@toc@l(%r12)
2669 Used to call a function in a shared library.
2670 . addis %r12,%r2,xxx@toc@ha
2672 . ld %r11,xxx+0@toc@l(%r12)
2673 . ld %r2,xxx+8@toc@l(%r12)
2675 . ld %r11,xxx+16@toc@l(%r12)
2678 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
2679 code to adjust the value and save r2 to support multiple toc sections.
2680 A ppc_stub_long_branch with an r2 offset looks like:
2682 . addis %r2,%r2,off@ha
2683 . addi %r2,%r2,off@l
2686 A ppc_stub_plt_branch with an r2 offset looks like:
2688 . addis %r12,%r2,xxx@toc@ha
2689 . ld %r11,xxx@toc@l(%r12)
2690 . addis %r2,%r2,off@ha
2691 . addi %r2,%r2,off@l
2696 enum ppc_stub_type
{
2698 ppc_stub_long_branch
,
2699 ppc_stub_long_branch_r2off
,
2700 ppc_stub_plt_branch
,
2701 ppc_stub_plt_branch_r2off
,
2705 struct ppc_stub_hash_entry
{
2707 /* Base hash table entry structure. */
2708 struct bfd_hash_entry root
;
2710 enum ppc_stub_type stub_type
;
2712 /* The stub section. */
2715 /* Offset within stub_sec of the beginning of this stub. */
2716 bfd_vma stub_offset
;
2718 /* Given the symbol's value and its section we can determine its final
2719 value when building the stubs (so the stub knows where to jump. */
2720 bfd_vma target_value
;
2721 asection
*target_section
;
2723 /* The symbol table entry, if any, that this was derived from. */
2724 struct ppc_link_hash_entry
*h
;
2726 /* And the reloc addend that this was derived from. */
2729 /* Where this stub is being called from, or, in the case of combined
2730 stub sections, the first input section in the group. */
2734 struct ppc_branch_hash_entry
{
2736 /* Base hash table entry structure. */
2737 struct bfd_hash_entry root
;
2739 /* Offset within .branch_lt. */
2740 unsigned int offset
;
2742 /* Generation marker. */
2746 struct ppc_link_hash_entry
2748 struct elf_link_hash_entry elf
;
2750 /* A pointer to the most recently used stub hash entry against this
2752 struct ppc_stub_hash_entry
*stub_cache
;
2754 /* Track dynamic relocs copied for this symbol. */
2755 struct ppc_dyn_relocs
*dyn_relocs
;
2757 /* Link between function code and descriptor symbols. */
2758 struct elf_link_hash_entry
*oh
;
2760 /* Flag function code and descriptor symbols. */
2761 unsigned int is_func
:1;
2762 unsigned int is_func_descriptor
:1;
2763 unsigned int is_entry
:1;
2765 /* Contexts in which symbol is used in the GOT (or TOC).
2766 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2767 corresponding relocs are encountered during check_relocs.
2768 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2769 indicate the corresponding GOT entry type is not needed.
2770 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2771 a TPREL one. We use a separate flag rather than setting TPREL
2772 just for convenience in distinguishing the two cases. */
2773 #define TLS_GD 1 /* GD reloc. */
2774 #define TLS_LD 2 /* LD reloc. */
2775 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
2776 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2777 #define TLS_TLS 16 /* Any TLS reloc. */
2778 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2779 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2783 /* ppc64 ELF linker hash table. */
2785 struct ppc_link_hash_table
2787 struct elf_link_hash_table elf
;
2789 /* The stub hash table. */
2790 struct bfd_hash_table stub_hash_table
;
2792 /* Another hash table for plt_branch stubs. */
2793 struct bfd_hash_table branch_hash_table
;
2795 /* Linker stub bfd. */
2798 /* Linker call-backs. */
2799 asection
* (*add_stub_section
) (const char *, asection
*);
2800 void (*layout_sections_again
) (void);
2802 /* Array to keep track of which stub sections have been created, and
2803 information on stub grouping. */
2805 /* This is the section to which stubs in the group will be attached. */
2807 /* The stub section. */
2809 /* Along with elf_gp, specifies the TOC pointer used in this group. */
2813 /* Support for multiple toc sections. */
2814 unsigned int no_multi_toc
;
2815 unsigned int multi_toc_needed
;
2817 /* Temp used when calculating TOC pointers. */
2820 /* Highest input section id. */
2823 /* Highest output section index. */
2826 /* List of input sections for each output section. */
2827 asection
**input_list
;
2829 /* Short-cuts to get to dynamic linker sections. */
2840 /* Shortcut to .__tls_get_addr. */
2841 struct elf_link_hash_entry
*tls_get_addr
;
2844 unsigned long stub_count
[ppc_stub_plt_call
];
2846 /* Set if we should emit symbols for stubs. */
2847 unsigned int emit_stub_syms
;
2850 unsigned int stub_error
;
2852 /* Flag set when small branches are detected. Used to
2853 select suitable defaults for the stub group size. */
2854 unsigned int has_14bit_branch
;
2856 /* Set if we detect a reference undefined weak symbol. */
2857 unsigned int have_undefweak
;
2859 /* Incremented every time we size stubs. */
2860 unsigned int stub_iteration
;
2862 /* Small local sym to section mapping cache. */
2863 struct sym_sec_cache sym_sec
;
2866 /* Get the ppc64 ELF linker hash table from a link_info structure. */
2868 #define ppc_hash_table(p) \
2869 ((struct ppc_link_hash_table *) ((p)->hash))
2871 #define ppc_stub_hash_lookup(table, string, create, copy) \
2872 ((struct ppc_stub_hash_entry *) \
2873 bfd_hash_lookup ((table), (string), (create), (copy)))
2875 #define ppc_branch_hash_lookup(table, string, create, copy) \
2876 ((struct ppc_branch_hash_entry *) \
2877 bfd_hash_lookup ((table), (string), (create), (copy)))
2879 /* Create an entry in the stub hash table. */
2881 static struct bfd_hash_entry
*
2882 stub_hash_newfunc (struct bfd_hash_entry
*entry
,
2883 struct bfd_hash_table
*table
,
2886 /* Allocate the structure if it has not already been allocated by a
2890 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_stub_hash_entry
));
2895 /* Call the allocation method of the superclass. */
2896 entry
= bfd_hash_newfunc (entry
, table
, string
);
2899 struct ppc_stub_hash_entry
*eh
;
2901 /* Initialize the local fields. */
2902 eh
= (struct ppc_stub_hash_entry
*) entry
;
2903 eh
->stub_type
= ppc_stub_none
;
2904 eh
->stub_sec
= NULL
;
2905 eh
->stub_offset
= 0;
2906 eh
->target_value
= 0;
2907 eh
->target_section
= NULL
;
2915 /* Create an entry in the branch hash table. */
2917 static struct bfd_hash_entry
*
2918 branch_hash_newfunc (struct bfd_hash_entry
*entry
,
2919 struct bfd_hash_table
*table
,
2922 /* Allocate the structure if it has not already been allocated by a
2926 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_branch_hash_entry
));
2931 /* Call the allocation method of the superclass. */
2932 entry
= bfd_hash_newfunc (entry
, table
, string
);
2935 struct ppc_branch_hash_entry
*eh
;
2937 /* Initialize the local fields. */
2938 eh
= (struct ppc_branch_hash_entry
*) entry
;
2946 /* Create an entry in a ppc64 ELF linker hash table. */
2948 static struct bfd_hash_entry
*
2949 link_hash_newfunc (struct bfd_hash_entry
*entry
,
2950 struct bfd_hash_table
*table
,
2953 /* Allocate the structure if it has not already been allocated by a
2957 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_link_hash_entry
));
2962 /* Call the allocation method of the superclass. */
2963 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
2966 struct ppc_link_hash_entry
*eh
= (struct ppc_link_hash_entry
*) entry
;
2968 eh
->stub_cache
= NULL
;
2969 eh
->dyn_relocs
= NULL
;
2972 eh
->is_func_descriptor
= 0;
2980 /* Create a ppc64 ELF linker hash table. */
2982 static struct bfd_link_hash_table
*
2983 ppc64_elf_link_hash_table_create (bfd
*abfd
)
2985 struct ppc_link_hash_table
*htab
;
2986 bfd_size_type amt
= sizeof (struct ppc_link_hash_table
);
2988 htab
= bfd_zmalloc (amt
);
2992 if (! _bfd_elf_link_hash_table_init (&htab
->elf
, abfd
, link_hash_newfunc
))
2998 /* Init the stub hash table too. */
2999 if (!bfd_hash_table_init (&htab
->stub_hash_table
, stub_hash_newfunc
))
3002 /* And the branch hash table. */
3003 if (!bfd_hash_table_init (&htab
->branch_hash_table
, branch_hash_newfunc
))
3006 /* Initializing two fields of the union is just cosmetic. We really
3007 only care about glist, but when compiled on a 32-bit host the
3008 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3009 debugger inspection of these fields look nicer. */
3010 htab
->elf
.init_refcount
.refcount
= 0;
3011 htab
->elf
.init_refcount
.glist
= NULL
;
3012 htab
->elf
.init_offset
.offset
= 0;
3013 htab
->elf
.init_offset
.glist
= NULL
;
3015 return &htab
->elf
.root
;
3018 /* Free the derived linker hash table. */
3021 ppc64_elf_link_hash_table_free (struct bfd_link_hash_table
*hash
)
3023 struct ppc_link_hash_table
*ret
= (struct ppc_link_hash_table
*) hash
;
3025 bfd_hash_table_free (&ret
->stub_hash_table
);
3026 bfd_hash_table_free (&ret
->branch_hash_table
);
3027 _bfd_generic_link_hash_table_free (hash
);
3030 /* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3033 ppc64_elf_init_stub_bfd (bfd
*abfd
, struct bfd_link_info
*info
)
3035 struct ppc_link_hash_table
*htab
;
3037 elf_elfheader (abfd
)->e_ident
[EI_CLASS
] = ELFCLASS64
;
3039 /* Always hook our dynamic sections into the first bfd, which is the
3040 linker created stub bfd. This ensures that the GOT header is at
3041 the start of the output TOC section. */
3042 htab
= ppc_hash_table (info
);
3043 htab
->stub_bfd
= abfd
;
3044 htab
->elf
.dynobj
= abfd
;
3047 /* Build a name for an entry in the stub hash table. */
3050 ppc_stub_name (const asection
*input_section
,
3051 const asection
*sym_sec
,
3052 const struct ppc_link_hash_entry
*h
,
3053 const Elf_Internal_Rela
*rel
)
3058 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3059 offsets from a sym as a branch target? In fact, we could
3060 probably assume the addend is always zero. */
3061 BFD_ASSERT (((int) rel
->r_addend
& 0xffffffff) == rel
->r_addend
);
3065 len
= 8 + 1 + strlen (h
->elf
.root
.root
.string
) + 1 + 8 + 1;
3066 stub_name
= bfd_malloc (len
);
3067 if (stub_name
!= NULL
)
3069 sprintf (stub_name
, "%08x.%s+%x",
3070 input_section
->id
& 0xffffffff,
3071 h
->elf
.root
.root
.string
,
3072 (int) rel
->r_addend
& 0xffffffff);
3077 len
= 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
3078 stub_name
= bfd_malloc (len
);
3079 if (stub_name
!= NULL
)
3081 sprintf (stub_name
, "%08x.%x:%x+%x",
3082 input_section
->id
& 0xffffffff,
3083 sym_sec
->id
& 0xffffffff,
3084 (int) ELF64_R_SYM (rel
->r_info
) & 0xffffffff,
3085 (int) rel
->r_addend
& 0xffffffff);
3091 /* Look up an entry in the stub hash. Stub entries are cached because
3092 creating the stub name takes a bit of time. */
3094 static struct ppc_stub_hash_entry
*
3095 ppc_get_stub_entry (const asection
*input_section
,
3096 const asection
*sym_sec
,
3097 struct elf_link_hash_entry
*hash
,
3098 const Elf_Internal_Rela
*rel
,
3099 struct ppc_link_hash_table
*htab
)
3101 struct ppc_stub_hash_entry
*stub_entry
;
3102 struct ppc_link_hash_entry
*h
= (struct ppc_link_hash_entry
*) hash
;
3103 const asection
*id_sec
;
3105 /* If this input section is part of a group of sections sharing one
3106 stub section, then use the id of the first section in the group.
3107 Stub names need to include a section id, as there may well be
3108 more than one stub used to reach say, printf, and we need to
3109 distinguish between them. */
3110 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
3112 if (h
!= NULL
&& h
->stub_cache
!= NULL
3113 && h
->stub_cache
->h
== h
3114 && h
->stub_cache
->id_sec
== id_sec
)
3116 stub_entry
= h
->stub_cache
;
3122 stub_name
= ppc_stub_name (id_sec
, sym_sec
, h
, rel
);
3123 if (stub_name
== NULL
)
3126 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
3127 stub_name
, FALSE
, FALSE
);
3129 h
->stub_cache
= stub_entry
;
3137 /* Add a new stub entry to the stub hash. Not all fields of the new
3138 stub entry are initialised. */
3140 static struct ppc_stub_hash_entry
*
3141 ppc_add_stub (const char *stub_name
,
3143 struct ppc_link_hash_table
*htab
)
3147 struct ppc_stub_hash_entry
*stub_entry
;
3149 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
3150 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
3151 if (stub_sec
== NULL
)
3153 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
3154 if (stub_sec
== NULL
)
3160 namelen
= strlen (link_sec
->name
);
3161 len
= namelen
+ sizeof (STUB_SUFFIX
);
3162 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
3166 memcpy (s_name
, link_sec
->name
, namelen
);
3167 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
3168 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
3169 if (stub_sec
== NULL
)
3171 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
3173 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
3176 /* Enter this entry into the linker stub hash table. */
3177 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
, stub_name
,
3179 if (stub_entry
== NULL
)
3181 (*_bfd_error_handler
) (_("%s: cannot create stub entry %s"),
3182 bfd_archive_filename (section
->owner
),
3187 stub_entry
->stub_sec
= stub_sec
;
3188 stub_entry
->stub_offset
= 0;
3189 stub_entry
->id_sec
= link_sec
;
3193 /* Create sections for linker generated code. */
3196 create_linkage_sections (bfd
*dynobj
, struct bfd_link_info
*info
)
3198 struct ppc_link_hash_table
*htab
;
3201 htab
= ppc_hash_table (info
);
3203 /* Create .sfpr for code to save and restore fp regs. */
3204 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_READONLY
3205 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3206 htab
->sfpr
= bfd_make_section_anyway (dynobj
, ".sfpr");
3207 if (htab
->sfpr
== NULL
3208 || ! bfd_set_section_flags (dynobj
, htab
->sfpr
, flags
)
3209 || ! bfd_set_section_alignment (dynobj
, htab
->sfpr
, 2))
3212 /* Create .glink for lazy dynamic linking support. */
3213 htab
->glink
= bfd_make_section_anyway (dynobj
, ".glink");
3214 if (htab
->glink
== NULL
3215 || ! bfd_set_section_flags (dynobj
, htab
->glink
, flags
)
3216 || ! bfd_set_section_alignment (dynobj
, htab
->glink
, 2))
3219 /* Create .branch_lt for plt_branch stubs. */
3220 flags
= (SEC_ALLOC
| SEC_LOAD
3221 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3222 htab
->brlt
= bfd_make_section_anyway (dynobj
, ".branch_lt");
3223 if (htab
->brlt
== NULL
3224 || ! bfd_set_section_flags (dynobj
, htab
->brlt
, flags
)
3225 || ! bfd_set_section_alignment (dynobj
, htab
->brlt
, 3))
3230 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
3231 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3232 htab
->relbrlt
= bfd_make_section_anyway (dynobj
, ".rela.branch_lt");
3234 || ! bfd_set_section_flags (dynobj
, htab
->relbrlt
, flags
)
3235 || ! bfd_set_section_alignment (dynobj
, htab
->relbrlt
, 3))
3241 /* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3242 not already done. */
3245 create_got_section (bfd
*abfd
, struct bfd_link_info
*info
)
3247 asection
*got
, *relgot
;
3249 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
3253 if (! _bfd_elf_create_got_section (htab
->elf
.dynobj
, info
))
3256 htab
->got
= bfd_get_section_by_name (htab
->elf
.dynobj
, ".got");
3261 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3262 | SEC_LINKER_CREATED
);
3264 got
= bfd_make_section (abfd
, ".got");
3266 || !bfd_set_section_flags (abfd
, got
, flags
)
3267 || !bfd_set_section_alignment (abfd
, got
, 3))
3270 relgot
= bfd_make_section (abfd
, ".rela.got");
3272 || ! bfd_set_section_flags (abfd
, relgot
, flags
| SEC_READONLY
)
3273 || ! bfd_set_section_alignment (abfd
, relgot
, 3))
3276 ppc64_elf_tdata (abfd
)->got
= got
;
3277 ppc64_elf_tdata (abfd
)->relgot
= relgot
;
3281 /* Create the dynamic sections, and set up shortcuts. */
3284 ppc64_elf_create_dynamic_sections (bfd
*dynobj
, struct bfd_link_info
*info
)
3286 struct ppc_link_hash_table
*htab
;
3288 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
3291 htab
= ppc_hash_table (info
);
3293 htab
->got
= bfd_get_section_by_name (dynobj
, ".got");
3294 htab
->plt
= bfd_get_section_by_name (dynobj
, ".plt");
3295 htab
->relplt
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3296 htab
->dynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
3298 htab
->relbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
3300 if (!htab
->got
|| !htab
->plt
|| !htab
->relplt
|| !htab
->dynbss
3301 || (!info
->shared
&& !htab
->relbss
))
3307 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3310 ppc64_elf_copy_indirect_symbol
3311 (const struct elf_backend_data
*bed ATTRIBUTE_UNUSED
,
3312 struct elf_link_hash_entry
*dir
,
3313 struct elf_link_hash_entry
*ind
)
3315 struct ppc_link_hash_entry
*edir
, *eind
;
3318 edir
= (struct ppc_link_hash_entry
*) dir
;
3319 eind
= (struct ppc_link_hash_entry
*) ind
;
3321 /* Copy over any dynamic relocs we may have on the indirect sym. */
3322 if (eind
->dyn_relocs
!= NULL
)
3324 if (edir
->dyn_relocs
!= NULL
)
3326 struct ppc_dyn_relocs
**pp
;
3327 struct ppc_dyn_relocs
*p
;
3329 if (eind
->elf
.root
.type
== bfd_link_hash_indirect
)
3332 /* Add reloc counts against the weak sym to the strong sym
3333 list. Merge any entries against the same section. */
3334 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
3336 struct ppc_dyn_relocs
*q
;
3338 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3339 if (q
->sec
== p
->sec
)
3341 q
->pc_count
+= p
->pc_count
;
3342 q
->count
+= p
->count
;
3349 *pp
= edir
->dyn_relocs
;
3352 edir
->dyn_relocs
= eind
->dyn_relocs
;
3353 eind
->dyn_relocs
= NULL
;
3356 edir
->is_func
|= eind
->is_func
;
3357 edir
->is_func_descriptor
|= eind
->is_func_descriptor
;
3358 edir
->is_entry
|= eind
->is_entry
;
3359 edir
->tls_mask
|= eind
->tls_mask
;
3361 mask
= (ELF_LINK_HASH_REF_DYNAMIC
| ELF_LINK_HASH_REF_REGULAR
3362 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
| ELF_LINK_NON_GOT_REF
);
3363 /* If called to transfer flags for a weakdef during processing
3364 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3365 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3366 if (ELIMINATE_COPY_RELOCS
3367 && eind
->elf
.root
.type
!= bfd_link_hash_indirect
3368 && (edir
->elf
.elf_link_hash_flags
& ELF_LINK_HASH_DYNAMIC_ADJUSTED
) != 0)
3369 mask
&= ~ELF_LINK_NON_GOT_REF
;
3371 edir
->elf
.elf_link_hash_flags
|= eind
->elf
.elf_link_hash_flags
& mask
;
3373 /* If we were called to copy over info for a weak sym, that's all. */
3374 if (eind
->elf
.root
.type
!= bfd_link_hash_indirect
)
3377 /* Copy over got entries that we may have already seen to the
3378 symbol which just became indirect. */
3379 if (eind
->elf
.got
.glist
!= NULL
)
3381 if (edir
->elf
.got
.glist
!= NULL
)
3383 struct got_entry
**entp
;
3384 struct got_entry
*ent
;
3386 for (entp
= &eind
->elf
.got
.glist
; (ent
= *entp
) != NULL
; )
3388 struct got_entry
*dent
;
3390 for (dent
= edir
->elf
.got
.glist
; dent
!= NULL
; dent
= dent
->next
)
3391 if (dent
->addend
== ent
->addend
3392 && dent
->owner
== ent
->owner
3393 && dent
->tls_type
== ent
->tls_type
)
3395 dent
->got
.refcount
+= ent
->got
.refcount
;
3402 *entp
= edir
->elf
.got
.glist
;
3405 edir
->elf
.got
.glist
= eind
->elf
.got
.glist
;
3406 eind
->elf
.got
.glist
= NULL
;
3409 /* And plt entries. */
3410 if (eind
->elf
.plt
.plist
!= NULL
)
3412 if (edir
->elf
.plt
.plist
!= NULL
)
3414 struct plt_entry
**entp
;
3415 struct plt_entry
*ent
;
3417 for (entp
= &eind
->elf
.plt
.plist
; (ent
= *entp
) != NULL
; )
3419 struct plt_entry
*dent
;
3421 for (dent
= edir
->elf
.plt
.plist
; dent
!= NULL
; dent
= dent
->next
)
3422 if (dent
->addend
== ent
->addend
)
3424 dent
->plt
.refcount
+= ent
->plt
.refcount
;
3431 *entp
= edir
->elf
.plt
.plist
;
3434 edir
->elf
.plt
.plist
= eind
->elf
.plt
.plist
;
3435 eind
->elf
.plt
.plist
= NULL
;
3438 if (edir
->elf
.dynindx
== -1)
3440 edir
->elf
.dynindx
= eind
->elf
.dynindx
;
3441 edir
->elf
.dynstr_index
= eind
->elf
.dynstr_index
;
3442 eind
->elf
.dynindx
= -1;
3443 eind
->elf
.dynstr_index
= 0;
3446 BFD_ASSERT (eind
->elf
.dynindx
== -1);
3449 /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3450 symbols undefined on the command-line. */
3453 ppc64_elf_mark_entry_syms (struct bfd_link_info
*info
)
3455 struct ppc_link_hash_table
*htab
;
3456 struct bfd_sym_chain
*sym
;
3458 htab
= ppc_hash_table (info
);
3459 for (sym
= info
->gc_sym_list
; sym
; sym
= sym
->next
)
3461 struct elf_link_hash_entry
*h
;
3463 h
= elf_link_hash_lookup (&htab
->elf
, sym
->name
, FALSE
, FALSE
, FALSE
);
3465 ((struct ppc_link_hash_entry
*) h
)->is_entry
= 1;
3471 update_local_sym_info (bfd
*abfd
, Elf_Internal_Shdr
*symtab_hdr
,
3472 unsigned long r_symndx
, bfd_vma r_addend
, int tls_type
)
3474 struct got_entry
**local_got_ents
= elf_local_got_ents (abfd
);
3475 char *local_got_tls_masks
;
3477 if (local_got_ents
== NULL
)
3479 bfd_size_type size
= symtab_hdr
->sh_info
;
3481 size
*= sizeof (*local_got_ents
) + sizeof (*local_got_tls_masks
);
3482 local_got_ents
= bfd_zalloc (abfd
, size
);
3483 if (local_got_ents
== NULL
)
3485 elf_local_got_ents (abfd
) = local_got_ents
;
3488 if ((tls_type
& TLS_EXPLICIT
) == 0)
3490 struct got_entry
*ent
;
3492 for (ent
= local_got_ents
[r_symndx
]; ent
!= NULL
; ent
= ent
->next
)
3493 if (ent
->addend
== r_addend
3494 && ent
->owner
== abfd
3495 && ent
->tls_type
== tls_type
)
3499 bfd_size_type amt
= sizeof (*ent
);
3500 ent
= bfd_alloc (abfd
, amt
);
3503 ent
->next
= local_got_ents
[r_symndx
];
3504 ent
->addend
= r_addend
;
3506 ent
->tls_type
= tls_type
;
3507 ent
->got
.refcount
= 0;
3508 local_got_ents
[r_symndx
] = ent
;
3510 ent
->got
.refcount
+= 1;
3513 local_got_tls_masks
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
3514 local_got_tls_masks
[r_symndx
] |= tls_type
;
3519 update_plt_info (bfd
*abfd
, struct ppc_link_hash_entry
*eh
, bfd_vma addend
)
3521 struct plt_entry
*ent
;
3523 for (ent
= eh
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
3524 if (ent
->addend
== addend
)
3528 bfd_size_type amt
= sizeof (*ent
);
3529 ent
= bfd_alloc (abfd
, amt
);
3532 ent
->next
= eh
->elf
.plt
.plist
;
3533 ent
->addend
= addend
;
3534 ent
->plt
.refcount
= 0;
3535 eh
->elf
.plt
.plist
= ent
;
3537 ent
->plt
.refcount
+= 1;
3538 eh
->elf
.elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
3543 /* Find the function descriptor hash entry from the given function code
3544 hash entry FH. Link the entries via their OH fields. */
3545 static struct ppc_link_hash_entry
*
3546 get_fdh (struct ppc_link_hash_entry
*fh
, struct ppc_link_hash_table
*htab
)
3548 struct ppc_link_hash_entry
*fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
3552 const char *fd_name
= fh
->elf
.root
.root
.string
+ 1;
3554 fdh
= (struct ppc_link_hash_entry
*)
3555 elf_link_hash_lookup (&htab
->elf
, fd_name
, FALSE
, FALSE
, FALSE
);
3558 fdh
->is_func_descriptor
= 1;
3568 /* Look through the relocs for a section during the first phase, and
3569 calculate needed space in the global offset table, procedure
3570 linkage table, and dynamic reloc sections. */
3573 ppc64_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
3574 asection
*sec
, const Elf_Internal_Rela
*relocs
)
3576 struct ppc_link_hash_table
*htab
;
3577 Elf_Internal_Shdr
*symtab_hdr
;
3578 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
3579 const Elf_Internal_Rela
*rel
;
3580 const Elf_Internal_Rela
*rel_end
;
3582 asection
**opd_sym_map
;
3584 if (info
->relocatable
)
3587 htab
= ppc_hash_table (info
);
3588 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3590 sym_hashes
= elf_sym_hashes (abfd
);
3591 sym_hashes_end
= (sym_hashes
3592 + symtab_hdr
->sh_size
/ sizeof (Elf64_External_Sym
)
3593 - symtab_hdr
->sh_info
);
3597 if (strcmp (bfd_get_section_name (abfd
, sec
), ".opd") == 0)
3599 /* Garbage collection needs some extra help with .opd sections.
3600 We don't want to necessarily keep everything referenced by
3601 relocs in .opd, as that would keep all functions. Instead,
3602 if we reference an .opd symbol (a function descriptor), we
3603 want to keep the function code symbol's section. This is
3604 easy for global symbols, but for local syms we need to keep
3605 information about the associated function section. Later, if
3606 edit_opd deletes entries, we'll use this array to adjust
3607 local syms in .opd. */
3609 asection
*func_section
;
3614 amt
= sec
->_raw_size
* sizeof (union opd_info
) / 24;
3615 opd_sym_map
= bfd_zalloc (abfd
, amt
);
3616 if (opd_sym_map
== NULL
)
3618 ppc64_elf_section_data (sec
)->opd
.func_sec
= opd_sym_map
;
3621 if (htab
->sfpr
== NULL
3622 && !create_linkage_sections (htab
->elf
.dynobj
, info
))
3625 rel_end
= relocs
+ sec
->reloc_count
;
3626 for (rel
= relocs
; rel
< rel_end
; rel
++)
3628 unsigned long r_symndx
;
3629 struct elf_link_hash_entry
*h
;
3630 enum elf_ppc64_reloc_type r_type
;
3633 r_symndx
= ELF64_R_SYM (rel
->r_info
);
3634 if (r_symndx
< symtab_hdr
->sh_info
)
3637 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3639 r_type
= ELF64_R_TYPE (rel
->r_info
);
3642 case R_PPC64_GOT_TLSLD16
:
3643 case R_PPC64_GOT_TLSLD16_LO
:
3644 case R_PPC64_GOT_TLSLD16_HI
:
3645 case R_PPC64_GOT_TLSLD16_HA
:
3646 ppc64_tlsld_got (abfd
)->refcount
+= 1;
3647 tls_type
= TLS_TLS
| TLS_LD
;
3650 case R_PPC64_GOT_TLSGD16
:
3651 case R_PPC64_GOT_TLSGD16_LO
:
3652 case R_PPC64_GOT_TLSGD16_HI
:
3653 case R_PPC64_GOT_TLSGD16_HA
:
3654 tls_type
= TLS_TLS
| TLS_GD
;
3657 case R_PPC64_GOT_TPREL16_DS
:
3658 case R_PPC64_GOT_TPREL16_LO_DS
:
3659 case R_PPC64_GOT_TPREL16_HI
:
3660 case R_PPC64_GOT_TPREL16_HA
:
3662 info
->flags
|= DF_STATIC_TLS
;
3663 tls_type
= TLS_TLS
| TLS_TPREL
;
3666 case R_PPC64_GOT_DTPREL16_DS
:
3667 case R_PPC64_GOT_DTPREL16_LO_DS
:
3668 case R_PPC64_GOT_DTPREL16_HI
:
3669 case R_PPC64_GOT_DTPREL16_HA
:
3670 tls_type
= TLS_TLS
| TLS_DTPREL
;
3672 sec
->has_tls_reloc
= 1;
3676 case R_PPC64_GOT16_DS
:
3677 case R_PPC64_GOT16_HA
:
3678 case R_PPC64_GOT16_HI
:
3679 case R_PPC64_GOT16_LO
:
3680 case R_PPC64_GOT16_LO_DS
:
3681 /* This symbol requires a global offset table entry. */
3682 sec
->has_gp_reloc
= 1;
3683 if (ppc64_elf_tdata (abfd
)->got
== NULL
3684 && !create_got_section (abfd
, info
))
3689 struct ppc_link_hash_entry
*eh
;
3690 struct got_entry
*ent
;
3692 eh
= (struct ppc_link_hash_entry
*) h
;
3693 for (ent
= eh
->elf
.got
.glist
; ent
!= NULL
; ent
= ent
->next
)
3694 if (ent
->addend
== rel
->r_addend
3695 && ent
->owner
== abfd
3696 && ent
->tls_type
== tls_type
)
3700 bfd_size_type amt
= sizeof (*ent
);
3701 ent
= bfd_alloc (abfd
, amt
);
3704 ent
->next
= eh
->elf
.got
.glist
;
3705 ent
->addend
= rel
->r_addend
;
3707 ent
->tls_type
= tls_type
;
3708 ent
->got
.refcount
= 0;
3709 eh
->elf
.got
.glist
= ent
;
3711 ent
->got
.refcount
+= 1;
3712 eh
->tls_mask
|= tls_type
;
3715 /* This is a global offset table entry for a local symbol. */
3716 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3717 rel
->r_addend
, tls_type
))
3721 case R_PPC64_PLT16_HA
:
3722 case R_PPC64_PLT16_HI
:
3723 case R_PPC64_PLT16_LO
:
3726 /* This symbol requires a procedure linkage table entry. We
3727 actually build the entry in adjust_dynamic_symbol,
3728 because this might be a case of linking PIC code without
3729 linking in any dynamic objects, in which case we don't
3730 need to generate a procedure linkage table after all. */
3733 /* It does not make sense to have a procedure linkage
3734 table entry for a local symbol. */
3735 bfd_set_error (bfd_error_bad_value
);
3739 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3744 /* The following relocations don't need to propagate the
3745 relocation if linking a shared object since they are
3746 section relative. */
3747 case R_PPC64_SECTOFF
:
3748 case R_PPC64_SECTOFF_LO
:
3749 case R_PPC64_SECTOFF_HI
:
3750 case R_PPC64_SECTOFF_HA
:
3751 case R_PPC64_SECTOFF_DS
:
3752 case R_PPC64_SECTOFF_LO_DS
:
3753 case R_PPC64_DTPREL16
:
3754 case R_PPC64_DTPREL16_LO
:
3755 case R_PPC64_DTPREL16_HI
:
3756 case R_PPC64_DTPREL16_HA
:
3757 case R_PPC64_DTPREL16_DS
:
3758 case R_PPC64_DTPREL16_LO_DS
:
3759 case R_PPC64_DTPREL16_HIGHER
:
3760 case R_PPC64_DTPREL16_HIGHERA
:
3761 case R_PPC64_DTPREL16_HIGHEST
:
3762 case R_PPC64_DTPREL16_HIGHESTA
:
3767 case R_PPC64_TOC16_LO
:
3768 case R_PPC64_TOC16_HI
:
3769 case R_PPC64_TOC16_HA
:
3770 case R_PPC64_TOC16_DS
:
3771 case R_PPC64_TOC16_LO_DS
:
3772 sec
->has_gp_reloc
= 1;
3775 /* This relocation describes the C++ object vtable hierarchy.
3776 Reconstruct it for later use during GC. */
3777 case R_PPC64_GNU_VTINHERIT
:
3778 if (!_bfd_elf64_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3782 /* This relocation describes which C++ vtable entries are actually
3783 used. Record for later use during GC. */
3784 case R_PPC64_GNU_VTENTRY
:
3785 if (!_bfd_elf64_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3790 case R_PPC64_REL14_BRTAKEN
:
3791 case R_PPC64_REL14_BRNTAKEN
:
3792 htab
->has_14bit_branch
= 1;
3797 && h
->root
.root
.string
[0] == '.'
3798 && h
->root
.root
.string
[1] != 0)
3800 /* We may need a .plt entry if the function this reloc
3801 refers to is in a shared lib. */
3802 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3805 if (h
== htab
->tls_get_addr
)
3806 sec
->has_tls_reloc
= 1;
3807 else if ((strncmp (h
->root
.root
.string
, ".__tls_get_addr", 15)
3809 && (h
->root
.root
.string
[15] == 0
3810 || h
->root
.root
.string
[15] == '@'))
3812 htab
->tls_get_addr
= h
;
3813 sec
->has_tls_reloc
= 1;
3818 case R_PPC64_TPREL64
:
3819 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_TPREL
;
3821 info
->flags
|= DF_STATIC_TLS
;
3824 case R_PPC64_DTPMOD64
:
3825 if (rel
+ 1 < rel_end
3826 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
3827 && rel
[1].r_offset
== rel
->r_offset
+ 8)
3828 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_GD
;
3830 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_LD
;
3833 case R_PPC64_DTPREL64
:
3834 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_DTPREL
;
3836 && rel
[-1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPMOD64
)
3837 && rel
[-1].r_offset
== rel
->r_offset
- 8)
3838 /* This is the second reloc of a dtpmod, dtprel pair.
3839 Don't mark with TLS_DTPREL. */
3843 sec
->has_tls_reloc
= 1;
3846 struct ppc_link_hash_entry
*eh
;
3847 eh
= (struct ppc_link_hash_entry
*) h
;
3848 eh
->tls_mask
|= tls_type
;
3851 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3852 rel
->r_addend
, tls_type
))
3855 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3857 /* One extra to simplify get_tls_mask. */
3858 bfd_size_type amt
= sec
->_raw_size
* sizeof (unsigned) / 8 + 1;
3859 ppc64_elf_section_data (sec
)->t_symndx
= bfd_zalloc (abfd
, amt
);
3860 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3863 BFD_ASSERT (rel
->r_offset
% 8 == 0);
3864 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8] = r_symndx
;
3866 /* Mark the second slot of a GD or LD entry.
3867 -1 to indicate GD and -2 to indicate LD. */
3868 if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_GD
))
3869 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -1;
3870 else if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_LD
))
3871 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -2;
3874 case R_PPC64_TPREL16
:
3875 case R_PPC64_TPREL16_LO
:
3876 case R_PPC64_TPREL16_HI
:
3877 case R_PPC64_TPREL16_HA
:
3878 case R_PPC64_TPREL16_DS
:
3879 case R_PPC64_TPREL16_LO_DS
:
3880 case R_PPC64_TPREL16_HIGHER
:
3881 case R_PPC64_TPREL16_HIGHERA
:
3882 case R_PPC64_TPREL16_HIGHEST
:
3883 case R_PPC64_TPREL16_HIGHESTA
:
3886 info
->flags
|= DF_STATIC_TLS
;
3891 case R_PPC64_ADDR64
:
3892 if (opd_sym_map
!= NULL
3894 && h
->root
.root
.string
[0] == '.'
3895 && h
->root
.root
.string
[1] != 0)
3896 get_fdh ((struct ppc_link_hash_entry
*) h
, htab
);
3898 if (opd_sym_map
!= NULL
3900 && rel
+ 1 < rel_end
3901 && ELF64_R_TYPE ((rel
+ 1)->r_info
) == R_PPC64_TOC
)
3905 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
, sec
,
3910 opd_sym_map
[rel
->r_offset
/ 24] = s
;
3917 case R_PPC64_ADDR14
:
3918 case R_PPC64_ADDR14_BRNTAKEN
:
3919 case R_PPC64_ADDR14_BRTAKEN
:
3920 case R_PPC64_ADDR16
:
3921 case R_PPC64_ADDR16_DS
:
3922 case R_PPC64_ADDR16_HA
:
3923 case R_PPC64_ADDR16_HI
:
3924 case R_PPC64_ADDR16_HIGHER
:
3925 case R_PPC64_ADDR16_HIGHERA
:
3926 case R_PPC64_ADDR16_HIGHEST
:
3927 case R_PPC64_ADDR16_HIGHESTA
:
3928 case R_PPC64_ADDR16_LO
:
3929 case R_PPC64_ADDR16_LO_DS
:
3930 case R_PPC64_ADDR24
:
3931 case R_PPC64_ADDR32
:
3932 case R_PPC64_UADDR16
:
3933 case R_PPC64_UADDR32
:
3934 case R_PPC64_UADDR64
:
3936 if (h
!= NULL
&& !info
->shared
)
3937 /* We may need a copy reloc. */
3938 h
->elf_link_hash_flags
|= ELF_LINK_NON_GOT_REF
;
3940 /* Don't propagate .opd relocs. */
3941 if (NO_OPD_RELOCS
&& opd_sym_map
!= NULL
)
3944 /* Don't propagate relocs that the dynamic linker won't relocate. */
3945 if ((sec
->flags
& SEC_ALLOC
) == 0)
3948 /* If we are creating a shared library, and this is a reloc
3949 against a global symbol, or a non PC relative reloc
3950 against a local symbol, then we need to copy the reloc
3951 into the shared library. However, if we are linking with
3952 -Bsymbolic, we do not need to copy a reloc against a
3953 global symbol which is defined in an object we are
3954 including in the link (i.e., DEF_REGULAR is set). At
3955 this point we have not seen all the input files, so it is
3956 possible that DEF_REGULAR is not set now but will be set
3957 later (it is never cleared). In case of a weak definition,
3958 DEF_REGULAR may be cleared later by a strong definition in
3959 a shared library. We account for that possibility below by
3960 storing information in the dyn_relocs field of the hash
3961 table entry. A similar situation occurs when creating
3962 shared libraries and symbol visibility changes render the
3965 If on the other hand, we are creating an executable, we
3966 may need to keep relocations for symbols satisfied by a
3967 dynamic library if we manage to avoid copy relocs for the
3971 && (MUST_BE_DYN_RELOC (r_type
)
3973 && (! info
->symbolic
3974 || h
->root
.type
== bfd_link_hash_defweak
3975 || (h
->elf_link_hash_flags
3976 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
3977 || (ELIMINATE_COPY_RELOCS
3980 && (h
->root
.type
== bfd_link_hash_defweak
3981 || (h
->elf_link_hash_flags
3982 & ELF_LINK_HASH_DEF_REGULAR
) == 0)))
3984 struct ppc_dyn_relocs
*p
;
3985 struct ppc_dyn_relocs
**head
;
3987 /* We must copy these reloc types into the output file.
3988 Create a reloc section in dynobj and make room for
3995 name
= (bfd_elf_string_from_elf_section
3997 elf_elfheader (abfd
)->e_shstrndx
,
3998 elf_section_data (sec
)->rel_hdr
.sh_name
));
4002 if (strncmp (name
, ".rela", 5) != 0
4003 || strcmp (bfd_get_section_name (abfd
, sec
),
4006 (*_bfd_error_handler
)
4007 (_("%s: bad relocation section name `%s\'"),
4008 bfd_archive_filename (abfd
), name
);
4009 bfd_set_error (bfd_error_bad_value
);
4012 dynobj
= htab
->elf
.dynobj
;
4013 sreloc
= bfd_get_section_by_name (dynobj
, name
);
4018 sreloc
= bfd_make_section (dynobj
, name
);
4019 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
4020 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
4021 if ((sec
->flags
& SEC_ALLOC
) != 0)
4022 flags
|= SEC_ALLOC
| SEC_LOAD
;
4024 || ! bfd_set_section_flags (dynobj
, sreloc
, flags
)
4025 || ! bfd_set_section_alignment (dynobj
, sreloc
, 3))
4028 elf_section_data (sec
)->sreloc
= sreloc
;
4031 /* If this is a global symbol, we count the number of
4032 relocations we need for this symbol. */
4035 head
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
4039 /* Track dynamic relocs needed for local syms too.
4040 We really need local syms available to do this
4044 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
4049 head
= ((struct ppc_dyn_relocs
**)
4050 &elf_section_data (s
)->local_dynrel
);
4054 if (p
== NULL
|| p
->sec
!= sec
)
4056 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
4067 if (!MUST_BE_DYN_RELOC (r_type
))
4080 /* Return the section that should be marked against GC for a given
4084 ppc64_elf_gc_mark_hook (asection
*sec
,
4085 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4086 Elf_Internal_Rela
*rel
,
4087 struct elf_link_hash_entry
*h
,
4088 Elf_Internal_Sym
*sym
)
4090 asection
*rsec
= NULL
;
4094 enum elf_ppc64_reloc_type r_type
;
4095 struct ppc_link_hash_entry
*fdh
;
4097 r_type
= ELF64_R_TYPE (rel
->r_info
);
4100 case R_PPC64_GNU_VTINHERIT
:
4101 case R_PPC64_GNU_VTENTRY
:
4105 switch (h
->root
.type
)
4107 case bfd_link_hash_defined
:
4108 case bfd_link_hash_defweak
:
4109 fdh
= (struct ppc_link_hash_entry
*) h
;
4111 /* Function descriptor syms cause the associated
4112 function code sym section to be marked. */
4113 if (fdh
->is_func_descriptor
)
4114 rsec
= fdh
->oh
->root
.u
.def
.section
;
4116 /* Function entry syms return NULL if they are in .opd
4117 and are not ._start (or others undefined on the ld
4118 command line). Thus we avoid marking all function
4119 sections, as all functions are referenced in .opd. */
4120 else if ((fdh
->oh
!= NULL
4121 && ((struct ppc_link_hash_entry
*) fdh
->oh
)->is_entry
)
4122 || ppc64_elf_section_data (sec
)->opd
.func_sec
== NULL
)
4123 rsec
= h
->root
.u
.def
.section
;
4126 case bfd_link_hash_common
:
4127 rsec
= h
->root
.u
.c
.p
->section
;
4137 asection
**opd_sym_section
;
4139 rsec
= bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
4140 opd_sym_section
= ppc64_elf_section_data (rsec
)->opd
.func_sec
;
4141 if (opd_sym_section
!= NULL
)
4142 rsec
= opd_sym_section
[sym
->st_value
/ 24];
4143 else if (ppc64_elf_section_data (sec
)->opd
.func_sec
!= NULL
)
4150 /* Update the .got, .plt. and dynamic reloc reference counts for the
4151 section being removed. */
4154 ppc64_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
,
4155 asection
*sec
, const Elf_Internal_Rela
*relocs
)
4157 struct ppc_link_hash_table
*htab
;
4158 Elf_Internal_Shdr
*symtab_hdr
;
4159 struct elf_link_hash_entry
**sym_hashes
;
4160 struct got_entry
**local_got_ents
;
4161 const Elf_Internal_Rela
*rel
, *relend
;
4163 elf_section_data (sec
)->local_dynrel
= NULL
;
4165 htab
= ppc_hash_table (info
);
4166 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
4167 sym_hashes
= elf_sym_hashes (abfd
);
4168 local_got_ents
= elf_local_got_ents (abfd
);
4170 relend
= relocs
+ sec
->reloc_count
;
4171 for (rel
= relocs
; rel
< relend
; rel
++)
4173 unsigned long r_symndx
;
4174 enum elf_ppc64_reloc_type r_type
;
4175 struct elf_link_hash_entry
*h
= NULL
;
4178 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4179 r_type
= ELF64_R_TYPE (rel
->r_info
);
4180 if (r_symndx
>= symtab_hdr
->sh_info
)
4182 struct ppc_link_hash_entry
*eh
;
4183 struct ppc_dyn_relocs
**pp
;
4184 struct ppc_dyn_relocs
*p
;
4186 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4187 eh
= (struct ppc_link_hash_entry
*) h
;
4189 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4192 /* Everything must go for SEC. */
4200 case R_PPC64_GOT_TLSLD16
:
4201 case R_PPC64_GOT_TLSLD16_LO
:
4202 case R_PPC64_GOT_TLSLD16_HI
:
4203 case R_PPC64_GOT_TLSLD16_HA
:
4204 ppc64_tlsld_got (abfd
)->refcount
-= 1;
4205 tls_type
= TLS_TLS
| TLS_LD
;
4208 case R_PPC64_GOT_TLSGD16
:
4209 case R_PPC64_GOT_TLSGD16_LO
:
4210 case R_PPC64_GOT_TLSGD16_HI
:
4211 case R_PPC64_GOT_TLSGD16_HA
:
4212 tls_type
= TLS_TLS
| TLS_GD
;
4215 case R_PPC64_GOT_TPREL16_DS
:
4216 case R_PPC64_GOT_TPREL16_LO_DS
:
4217 case R_PPC64_GOT_TPREL16_HI
:
4218 case R_PPC64_GOT_TPREL16_HA
:
4219 tls_type
= TLS_TLS
| TLS_TPREL
;
4222 case R_PPC64_GOT_DTPREL16_DS
:
4223 case R_PPC64_GOT_DTPREL16_LO_DS
:
4224 case R_PPC64_GOT_DTPREL16_HI
:
4225 case R_PPC64_GOT_DTPREL16_HA
:
4226 tls_type
= TLS_TLS
| TLS_DTPREL
;
4230 case R_PPC64_GOT16_DS
:
4231 case R_PPC64_GOT16_HA
:
4232 case R_PPC64_GOT16_HI
:
4233 case R_PPC64_GOT16_LO
:
4234 case R_PPC64_GOT16_LO_DS
:
4237 struct got_entry
*ent
;
4242 ent
= local_got_ents
[r_symndx
];
4244 for (; ent
!= NULL
; ent
= ent
->next
)
4245 if (ent
->addend
== rel
->r_addend
4246 && ent
->owner
== abfd
4247 && ent
->tls_type
== tls_type
)
4251 if (ent
->got
.refcount
> 0)
4252 ent
->got
.refcount
-= 1;
4256 case R_PPC64_PLT16_HA
:
4257 case R_PPC64_PLT16_HI
:
4258 case R_PPC64_PLT16_LO
:
4262 case R_PPC64_REL14_BRNTAKEN
:
4263 case R_PPC64_REL14_BRTAKEN
:
4267 struct plt_entry
*ent
;
4269 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4270 if (ent
->addend
== rel
->r_addend
)
4274 if (ent
->plt
.refcount
> 0)
4275 ent
->plt
.refcount
-= 1;
4286 /* Called via elf_link_hash_traverse to transfer dynamic linking
4287 information on function code symbol entries to their corresponding
4288 function descriptor symbol entries. */
4290 func_desc_adjust (struct elf_link_hash_entry
*h
, void *inf
)
4292 struct bfd_link_info
*info
;
4293 struct ppc_link_hash_table
*htab
;
4294 struct plt_entry
*ent
;
4295 struct ppc_link_hash_entry
*fh
;
4296 struct ppc_link_hash_entry
*fdh
;
4297 bfd_boolean force_local
;
4299 fh
= (struct ppc_link_hash_entry
*) h
;
4300 if (fh
->elf
.root
.type
== bfd_link_hash_indirect
)
4303 if (fh
->elf
.root
.type
== bfd_link_hash_warning
)
4304 fh
= (struct ppc_link_hash_entry
*) fh
->elf
.root
.u
.i
.link
;
4307 htab
= ppc_hash_table (info
);
4309 /* If this is a function code symbol, transfer dynamic linking
4310 information to the function descriptor symbol. */
4314 if (fh
->elf
.root
.type
== bfd_link_hash_undefweak
4315 && (fh
->elf
.elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
))
4316 htab
->have_undefweak
= TRUE
;
4318 for (ent
= fh
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4319 if (ent
->plt
.refcount
> 0)
4322 || fh
->elf
.root
.root
.string
[0] != '.'
4323 || fh
->elf
.root
.root
.string
[1] == '\0')
4326 /* Find the corresponding function descriptor symbol. Create it
4327 as undefined if necessary. */
4329 fdh
= get_fdh (fh
, htab
);
4331 while (fdh
->elf
.root
.type
== bfd_link_hash_indirect
4332 || fdh
->elf
.root
.type
== bfd_link_hash_warning
)
4333 fdh
= (struct ppc_link_hash_entry
*) fdh
->elf
.root
.u
.i
.link
;
4337 && (fh
->elf
.root
.type
== bfd_link_hash_undefined
4338 || fh
->elf
.root
.type
== bfd_link_hash_undefweak
))
4342 struct bfd_link_hash_entry
*bh
;
4344 abfd
= fh
->elf
.root
.u
.undef
.abfd
;
4345 newsym
= bfd_make_empty_symbol (abfd
);
4346 newsym
->name
= fh
->elf
.root
.root
.string
+ 1;
4347 newsym
->section
= bfd_und_section_ptr
;
4349 newsym
->flags
= BSF_OBJECT
;
4350 if (fh
->elf
.root
.type
== bfd_link_hash_undefweak
)
4351 newsym
->flags
|= BSF_WEAK
;
4353 bh
= &fdh
->elf
.root
;
4354 if ( !(_bfd_generic_link_add_one_symbol
4355 (info
, abfd
, newsym
->name
, newsym
->flags
,
4356 newsym
->section
, newsym
->value
, NULL
, FALSE
, FALSE
, &bh
)))
4360 fdh
= (struct ppc_link_hash_entry
*) bh
;
4361 fdh
->elf
.elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
4363 fdh
->elf
.type
= STT_OBJECT
;
4367 && (fdh
->elf
.elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0
4369 || (fdh
->elf
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4370 || (fdh
->elf
.elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0
4371 || (fdh
->elf
.root
.type
== bfd_link_hash_undefweak
4372 && ELF_ST_VISIBILITY (fdh
->elf
.other
) == STV_DEFAULT
)))
4374 if (fdh
->elf
.dynindx
== -1)
4375 if (! bfd_elf64_link_record_dynamic_symbol (info
, &fdh
->elf
))
4377 fdh
->elf
.elf_link_hash_flags
4378 |= (fh
->elf
.elf_link_hash_flags
& (ELF_LINK_HASH_REF_REGULAR
4379 | ELF_LINK_HASH_REF_DYNAMIC
4380 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4381 | ELF_LINK_NON_GOT_REF
));
4382 if (ELF_ST_VISIBILITY (fh
->elf
.other
) == STV_DEFAULT
)
4384 fdh
->elf
.plt
.plist
= fh
->elf
.plt
.plist
;
4385 fdh
->elf
.elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
4387 fdh
->is_func_descriptor
= 1;
4392 /* Now that the info is on the function descriptor, clear the
4393 function code sym info. Any function code syms for which we
4394 don't have a definition in a regular file, we force local.
4395 This prevents a shared library from exporting syms that have
4396 been imported from another library. Function code syms that
4397 are really in the library we must leave global to prevent the
4398 linker dragging in a definition from a static library. */
4401 && ((fh
->elf
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0
4403 || (fdh
->elf
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0
4404 || (fdh
->elf
.elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0));
4405 _bfd_elf_link_hash_hide_symbol (info
, &fh
->elf
, force_local
);
4410 #define MIN_SAVE_FPR 14
4411 #define MAX_SAVE_FPR 31
4413 /* Called near the start of bfd_elf_size_dynamic_sections. We use
4414 this hook to a) provide some gcc support functions, and b) transfer
4415 dynamic linking information gathered so far on function code symbol
4416 entries, to their corresponding function descriptor symbol entries. */
4418 ppc64_elf_func_desc_adjust (bfd
*obfd ATTRIBUTE_UNUSED
,
4419 struct bfd_link_info
*info
)
4421 struct ppc_link_hash_table
*htab
;
4422 unsigned int lowest_savef
= MAX_SAVE_FPR
+ 2;
4423 unsigned int lowest_restf
= MAX_SAVE_FPR
+ 2;
4425 struct elf_link_hash_entry
*h
;
4429 htab
= ppc_hash_table (info
);
4431 if (htab
->sfpr
== NULL
)
4432 /* We don't have any relocs. */
4435 /* First provide any missing ._savef* and ._restf* functions. */
4436 memcpy (sym
, "._savef14", 10);
4437 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4439 sym
[7] = i
/ 10 + '0';
4440 sym
[8] = i
% 10 + '0';
4441 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4443 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
4445 if (lowest_savef
> i
)
4447 h
->root
.type
= bfd_link_hash_defined
;
4448 h
->root
.u
.def
.section
= htab
->sfpr
;
4449 h
->root
.u
.def
.value
= (i
- lowest_savef
) * 4;
4451 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4452 _bfd_elf_link_hash_hide_symbol (info
, h
, TRUE
);
4456 memcpy (sym
, "._restf14", 10);
4457 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4459 sym
[7] = i
/ 10 + '0';
4460 sym
[8] = i
% 10 + '0';
4461 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4463 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
4465 if (lowest_restf
> i
)
4467 h
->root
.type
= bfd_link_hash_defined
;
4468 h
->root
.u
.def
.section
= htab
->sfpr
;
4469 h
->root
.u
.def
.value
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4470 + (i
- lowest_restf
) * 4);
4472 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4473 _bfd_elf_link_hash_hide_symbol (info
, h
, TRUE
);
4477 elf_link_hash_traverse (&htab
->elf
, func_desc_adjust
, info
);
4479 htab
->sfpr
->_raw_size
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4480 + (MAX_SAVE_FPR
+ 2 - lowest_restf
) * 4);
4482 if (htab
->sfpr
->_raw_size
== 0)
4484 if (!htab
->have_undefweak
)
4486 _bfd_strip_section_from_output (info
, htab
->sfpr
);
4490 htab
->sfpr
->_raw_size
= 4;
4493 p
= bfd_alloc (htab
->elf
.dynobj
, htab
->sfpr
->_raw_size
);
4496 htab
->sfpr
->contents
= p
;
4498 for (i
= lowest_savef
; i
<= MAX_SAVE_FPR
; i
++)
4500 unsigned int fpr
= i
<< 21;
4501 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4502 bfd_put_32 (htab
->elf
.dynobj
, STFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4505 if (lowest_savef
<= MAX_SAVE_FPR
)
4507 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4511 for (i
= lowest_restf
; i
<= MAX_SAVE_FPR
; i
++)
4513 unsigned int fpr
= i
<< 21;
4514 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4515 bfd_put_32 (htab
->elf
.dynobj
, LFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4518 if (lowest_restf
<= MAX_SAVE_FPR
4519 || htab
->sfpr
->_raw_size
== 4)
4521 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4527 /* Adjust a symbol defined by a dynamic object and referenced by a
4528 regular object. The current definition is in some section of the
4529 dynamic object, but we're not including those sections. We have to
4530 change the definition to something the rest of the link can
4534 ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
4535 struct elf_link_hash_entry
*h
)
4537 struct ppc_link_hash_table
*htab
;
4539 unsigned int power_of_two
;
4541 htab
= ppc_hash_table (info
);
4543 /* Deal with function syms. */
4544 if (h
->type
== STT_FUNC
4545 || (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
4547 /* Clear procedure linkage table information for any symbol that
4548 won't need a .plt entry. */
4549 struct plt_entry
*ent
;
4550 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4551 if (ent
->plt
.refcount
> 0)
4553 if (!((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
4555 || SYMBOL_CALLS_LOCAL (info
, h
)
4556 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
4557 && h
->root
.type
== bfd_link_hash_undefweak
))
4559 h
->plt
.plist
= NULL
;
4560 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
4564 h
->plt
.plist
= NULL
;
4566 /* If this is a weak symbol, and there is a real definition, the
4567 processor independent code will have arranged for us to see the
4568 real definition first, and we can just use the same value. */
4569 if (h
->weakdef
!= NULL
)
4571 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
4572 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
4573 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
4574 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
4575 if (ELIMINATE_COPY_RELOCS
)
4576 h
->elf_link_hash_flags
4577 = ((h
->elf_link_hash_flags
& ~ELF_LINK_NON_GOT_REF
)
4578 | (h
->weakdef
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
));
4582 /* If we are creating a shared library, we must presume that the
4583 only references to the symbol are via the global offset table.
4584 For such cases we need not do anything here; the relocations will
4585 be handled correctly by relocate_section. */
4589 /* If there are no references to this symbol that do not use the
4590 GOT, we don't need to generate a copy reloc. */
4591 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0)
4594 if (ELIMINATE_COPY_RELOCS
)
4596 struct ppc_link_hash_entry
* eh
;
4597 struct ppc_dyn_relocs
*p
;
4599 eh
= (struct ppc_link_hash_entry
*) h
;
4600 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4602 s
= p
->sec
->output_section
;
4603 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
4607 /* If we didn't find any dynamic relocs in read-only sections, then
4608 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4611 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_GOT_REF
;
4616 if (h
->plt
.plist
!= NULL
)
4618 /* We should never get here, but unfortunately there are versions
4619 of gcc out there that improperly (for this ABI) put initialized
4620 function pointers, vtable refs and suchlike in read-only
4621 sections. Allow them to proceed, but warn that this might
4622 break at runtime. */
4623 (*_bfd_error_handler
)
4624 (_("copy reloc against `%s' requires lazy plt linking; "
4625 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
4626 h
->root
.root
.string
);
4629 /* This is a reference to a symbol defined by a dynamic object which
4630 is not a function. */
4632 /* We must allocate the symbol in our .dynbss section, which will
4633 become part of the .bss section of the executable. There will be
4634 an entry for this symbol in the .dynsym section. The dynamic
4635 object will contain position independent code, so all references
4636 from the dynamic object to this symbol will go through the global
4637 offset table. The dynamic linker will use the .dynsym entry to
4638 determine the address it must put in the global offset table, so
4639 both the dynamic object and the regular object will refer to the
4640 same memory location for the variable. */
4642 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4643 to copy the initial value out of the dynamic object and into the
4644 runtime process image. We need to remember the offset into the
4645 .rela.bss section we are going to use. */
4646 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4648 htab
->relbss
->_raw_size
+= sizeof (Elf64_External_Rela
);
4649 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_COPY
;
4652 /* We need to figure out the alignment required for this symbol. I
4653 have no idea how ELF linkers handle this. */
4654 power_of_two
= bfd_log2 (h
->size
);
4655 if (power_of_two
> 4)
4658 /* Apply the required alignment. */
4660 s
->_raw_size
= BFD_ALIGN (s
->_raw_size
, (bfd_size_type
) (1 << power_of_two
));
4661 if (power_of_two
> bfd_get_section_alignment (htab
->elf
.dynobj
, s
))
4663 if (! bfd_set_section_alignment (htab
->elf
.dynobj
, s
, power_of_two
))
4667 /* Define the symbol as being at this point in the section. */
4668 h
->root
.u
.def
.section
= s
;
4669 h
->root
.u
.def
.value
= s
->_raw_size
;
4671 /* Increment the section size to make room for the symbol. */
4672 s
->_raw_size
+= h
->size
;
4677 /* If given a function descriptor symbol, hide both the function code
4678 sym and the descriptor. */
4680 ppc64_elf_hide_symbol (struct bfd_link_info
*info
,
4681 struct elf_link_hash_entry
*h
,
4682 bfd_boolean force_local
)
4684 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4686 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
4688 struct elf_link_hash_entry
*fh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4693 struct ppc_link_hash_table
*htab
;
4696 /* We aren't supposed to use alloca in BFD because on
4697 systems which do not have alloca the version in libiberty
4698 calls xmalloc, which might cause the program to crash
4699 when it runs out of memory. This function doesn't have a
4700 return status, so there's no way to gracefully return an
4701 error. So cheat. We know that string[-1] can be safely
4702 dereferenced; It's either a string in an ELF string
4703 table, or allocated in an objalloc structure. */
4705 p
= h
->root
.root
.string
- 1;
4708 htab
= ppc_hash_table (info
);
4709 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4712 /* Unfortunately, if it so happens that the string we were
4713 looking for was allocated immediately before this string,
4714 then we overwrote the string terminator. That's the only
4715 reason the lookup should fail. */
4718 q
= h
->root
.root
.string
+ strlen (h
->root
.root
.string
);
4719 while (q
>= h
->root
.root
.string
&& *q
== *p
)
4721 if (q
< h
->root
.root
.string
&& *p
== '.')
4722 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4726 ((struct ppc_link_hash_entry
*) h
)->oh
= fh
;
4727 ((struct ppc_link_hash_entry
*) fh
)->oh
= h
;
4731 _bfd_elf_link_hash_hide_symbol (info
, fh
, force_local
);
4736 get_sym_h (struct elf_link_hash_entry
**hp
, Elf_Internal_Sym
**symp
,
4737 asection
**symsecp
, char **tls_maskp
, Elf_Internal_Sym
**locsymsp
,
4738 unsigned long r_symndx
, bfd
*ibfd
)
4740 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4742 if (r_symndx
>= symtab_hdr
->sh_info
)
4744 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
4745 struct elf_link_hash_entry
*h
;
4747 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4748 while (h
->root
.type
== bfd_link_hash_indirect
4749 || h
->root
.type
== bfd_link_hash_warning
)
4750 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4758 if (symsecp
!= NULL
)
4760 asection
*symsec
= NULL
;
4761 if (h
->root
.type
== bfd_link_hash_defined
4762 || h
->root
.type
== bfd_link_hash_defweak
)
4763 symsec
= h
->root
.u
.def
.section
;
4767 if (tls_maskp
!= NULL
)
4769 struct ppc_link_hash_entry
*eh
;
4771 eh
= (struct ppc_link_hash_entry
*) h
;
4772 *tls_maskp
= &eh
->tls_mask
;
4777 Elf_Internal_Sym
*sym
;
4778 Elf_Internal_Sym
*locsyms
= *locsymsp
;
4780 if (locsyms
== NULL
)
4782 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
4783 if (locsyms
== NULL
)
4784 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
4785 symtab_hdr
->sh_info
,
4786 0, NULL
, NULL
, NULL
);
4787 if (locsyms
== NULL
)
4789 *locsymsp
= locsyms
;
4791 sym
= locsyms
+ r_symndx
;
4799 if (symsecp
!= NULL
)
4801 asection
*symsec
= NULL
;
4802 if ((sym
->st_shndx
!= SHN_UNDEF
4803 && sym
->st_shndx
< SHN_LORESERVE
)
4804 || sym
->st_shndx
> SHN_HIRESERVE
)
4805 symsec
= bfd_section_from_elf_index (ibfd
, sym
->st_shndx
);
4809 if (tls_maskp
!= NULL
)
4811 struct got_entry
**lgot_ents
;
4815 lgot_ents
= elf_local_got_ents (ibfd
);
4816 if (lgot_ents
!= NULL
)
4818 char *lgot_masks
= (char *) (lgot_ents
+ symtab_hdr
->sh_info
);
4819 tls_mask
= &lgot_masks
[r_symndx
];
4821 *tls_maskp
= tls_mask
;
4827 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
4828 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
4829 type suitable for optimization, and 1 otherwise. */
4832 get_tls_mask (char **tls_maskp
, unsigned long *toc_symndx
,
4833 Elf_Internal_Sym
**locsymsp
,
4834 const Elf_Internal_Rela
*rel
, bfd
*ibfd
)
4836 unsigned long r_symndx
;
4838 struct elf_link_hash_entry
*h
;
4839 Elf_Internal_Sym
*sym
;
4843 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4844 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4847 if ((*tls_maskp
!= NULL
&& **tls_maskp
!= 0)
4849 || ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
4852 /* Look inside a TOC section too. */
4855 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
4856 off
= h
->root
.u
.def
.value
;
4859 off
= sym
->st_value
;
4860 off
+= rel
->r_addend
;
4861 BFD_ASSERT (off
% 8 == 0);
4862 r_symndx
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8];
4863 next_r
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8 + 1];
4864 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4866 if (toc_symndx
!= NULL
)
4867 *toc_symndx
= r_symndx
;
4869 || ((h
->root
.type
== bfd_link_hash_defined
4870 || h
->root
.type
== bfd_link_hash_defweak
)
4871 && !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)))
4872 && (next_r
== -1 || next_r
== -2))
4878 ppc64_elf_edit_opd (bfd
*obfd
, struct bfd_link_info
*info
)
4882 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
4885 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
4886 Elf_Internal_Shdr
*symtab_hdr
;
4887 Elf_Internal_Sym
*local_syms
;
4888 struct elf_link_hash_entry
**sym_hashes
;
4892 bfd_boolean need_edit
;
4894 sec
= bfd_get_section_by_name (ibfd
, ".opd");
4898 amt
= sec
->_raw_size
* sizeof (long) / 24;
4899 adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
4902 /* Must be a ld -r link. ie. check_relocs hasn't been
4904 adjust
= bfd_zalloc (obfd
, amt
);
4905 ppc64_elf_section_data (sec
)->opd
.adjust
= adjust
;
4907 memset (adjust
, 0, amt
);
4909 if (sec
->output_section
== bfd_abs_section_ptr
)
4912 /* Look through the section relocs. */
4913 if ((sec
->flags
& SEC_RELOC
) == 0 || sec
->reloc_count
== 0)
4917 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4918 sym_hashes
= elf_sym_hashes (ibfd
);
4920 /* Read the relocations. */
4921 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
4923 if (relstart
== NULL
)
4926 /* First run through the relocs to check they are sane, and to
4927 determine whether we need to edit this opd section. */
4930 relend
= relstart
+ sec
->reloc_count
;
4931 for (rel
= relstart
; rel
< relend
; )
4933 enum elf_ppc64_reloc_type r_type
;
4934 unsigned long r_symndx
;
4936 struct elf_link_hash_entry
*h
;
4937 Elf_Internal_Sym
*sym
;
4939 /* .opd contains a regular array of 24 byte entries. We're
4940 only interested in the reloc pointing to a function entry
4942 if (rel
->r_offset
!= offset
4943 || rel
+ 1 >= relend
4944 || (rel
+ 1)->r_offset
!= offset
+ 8)
4946 /* If someone messes with .opd alignment then after a
4947 "ld -r" we might have padding in the middle of .opd.
4948 Also, there's nothing to prevent someone putting
4949 something silly in .opd with the assembler. No .opd
4950 optimization for them! */
4951 (*_bfd_error_handler
)
4952 (_("%s: .opd is not a regular array of opd entries"),
4953 bfd_archive_filename (ibfd
));
4958 if ((r_type
= ELF64_R_TYPE (rel
->r_info
)) != R_PPC64_ADDR64
4959 || (r_type
= ELF64_R_TYPE ((rel
+ 1)->r_info
)) != R_PPC64_TOC
)
4961 (*_bfd_error_handler
)
4962 (_("%s: unexpected reloc type %u in .opd section"),
4963 bfd_archive_filename (ibfd
), r_type
);
4968 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4969 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
4973 if (sym_sec
== NULL
|| sym_sec
->owner
== NULL
)
4975 const char *sym_name
;
4977 sym_name
= h
->root
.root
.string
;
4979 sym_name
= bfd_elf_local_sym_name (ibfd
, sym
);
4981 (*_bfd_error_handler
)
4982 (_("%s: undefined sym `%s' in .opd section"),
4983 bfd_archive_filename (ibfd
),
4989 /* opd entries are always for functions defined in the
4990 current input bfd. If the symbol isn't defined in the
4991 input bfd, then we won't be using the function in this
4992 bfd; It must be defined in a linkonce section in another
4993 bfd, or is weak. It's also possible that we are
4994 discarding the function due to a linker script /DISCARD/,
4995 which we test for via the output_section. */
4996 if (sym_sec
->owner
!= ibfd
4997 || sym_sec
->output_section
== bfd_abs_section_ptr
)
5002 /* Allow for the possibility of a reloc on the third word. */
5004 && rel
->r_offset
== offset
- 8)
5010 Elf_Internal_Rela
*write_rel
;
5011 bfd_byte
*rptr
, *wptr
;
5014 /* This seems a waste of time as input .opd sections are all
5015 zeros as generated by gcc, but I suppose there's no reason
5016 this will always be so. We might start putting something in
5017 the third word of .opd entries. */
5018 if ((sec
->flags
& SEC_IN_MEMORY
) == 0)
5020 bfd_byte
*loc
= bfd_alloc (ibfd
, sec
->_raw_size
);
5022 || !bfd_get_section_contents (ibfd
, sec
, loc
, 0,
5026 if (local_syms
!= NULL
5027 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5029 if (elf_section_data (sec
)->relocs
!= relstart
)
5033 sec
->contents
= loc
;
5034 sec
->flags
|= (SEC_IN_MEMORY
| SEC_HAS_CONTENTS
);
5037 elf_section_data (sec
)->relocs
= relstart
;
5039 wptr
= sec
->contents
;
5040 rptr
= sec
->contents
;
5041 write_rel
= relstart
;
5044 for (rel
= relstart
; rel
< relend
; rel
++)
5046 unsigned long r_symndx
;
5048 struct elf_link_hash_entry
*h
;
5049 Elf_Internal_Sym
*sym
;
5051 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5052 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
5056 if (rel
->r_offset
== offset
)
5058 struct ppc_link_hash_entry
*fdh
= NULL
;
5060 fdh
= get_fdh ((struct ppc_link_hash_entry
*) h
,
5061 ppc_hash_table (info
));
5063 skip
= (sym_sec
->owner
!= ibfd
5064 || sym_sec
->output_section
== bfd_abs_section_ptr
);
5067 if (h
!= NULL
&& sym_sec
->owner
== ibfd
)
5069 /* Arrange for the function descriptor sym
5071 fdh
->elf
.root
.u
.def
.value
= 0;
5072 fdh
->elf
.root
.u
.def
.section
= sym_sec
;
5077 /* We'll be keeping this opd entry. */
5081 /* Redefine the function descriptor symbol
5082 to this location in the opd section.
5083 We've checked above that opd relocs are
5085 fdh
->elf
.root
.u
.def
.value
= wptr
- sec
->contents
;
5089 /* Local syms are a bit tricky. We could
5090 tweak them as they can be cached, but
5091 we'd need to look through the local syms
5092 for the function descriptor sym which we
5093 don't have at the moment. So keep an
5094 array of adjustments. */
5095 adjust
[rel
->r_offset
/ 24] = wptr
- rptr
;
5099 memcpy (wptr
, rptr
, 24);
5108 BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel
->r_info
)));
5111 /* We won't be needing dynamic relocs here. */
5112 struct ppc_dyn_relocs
**pp
;
5113 struct ppc_dyn_relocs
*p
;
5116 pp
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
5117 else if (sym_sec
!= NULL
)
5118 pp
= ((struct ppc_dyn_relocs
**)
5119 &elf_section_data (sym_sec
)->local_dynrel
);
5121 pp
= ((struct ppc_dyn_relocs
**)
5122 &elf_section_data (sec
)->local_dynrel
);
5123 while ((p
= *pp
) != NULL
)
5138 /* We need to adjust any reloc offsets to point to the
5139 new opd entries. While we're at it, we may as well
5140 remove redundant relocs. */
5141 rel
->r_offset
+= wptr
- rptr
;
5142 if (write_rel
!= rel
)
5143 memcpy (write_rel
, rel
, sizeof (*rel
));
5148 sec
->_cooked_size
= wptr
- sec
->contents
;
5149 sec
->reloc_count
= write_rel
- relstart
;
5150 /* Fudge the size too, as this is used later in
5151 elf_bfd_final_link if we are emitting relocs. */
5152 elf_section_data (sec
)->rel_hdr
.sh_size
5153 = sec
->reloc_count
* elf_section_data (sec
)->rel_hdr
.sh_entsize
;
5154 BFD_ASSERT (elf_section_data (sec
)->rel_hdr2
== NULL
);
5156 else if (elf_section_data (sec
)->relocs
!= relstart
)
5159 if (local_syms
!= NULL
5160 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5162 if (!info
->keep_memory
)
5165 symtab_hdr
->contents
= (unsigned char *) local_syms
;
5172 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
5175 ppc64_elf_tls_setup (bfd
*obfd
, struct bfd_link_info
*info
)
5177 struct ppc_link_hash_table
*htab
;
5179 htab
= ppc_hash_table (info
);
5180 if (htab
->tls_get_addr
!= NULL
)
5182 struct elf_link_hash_entry
*h
= htab
->tls_get_addr
;
5184 while (h
->root
.type
== bfd_link_hash_indirect
5185 || h
->root
.type
== bfd_link_hash_warning
)
5186 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5188 htab
->tls_get_addr
= h
;
5191 return _bfd_elf_tls_setup (obfd
, info
);
5194 /* Run through all the TLS relocs looking for optimization
5195 opportunities. The linker has been hacked (see ppc64elf.em) to do
5196 a preliminary section layout so that we know the TLS segment
5197 offsets. We can't optimize earlier because some optimizations need
5198 to know the tp offset, and we need to optimize before allocating
5199 dynamic relocations. */
5202 ppc64_elf_tls_optimize (bfd
*obfd ATTRIBUTE_UNUSED
, struct bfd_link_info
*info
)
5206 struct ppc_link_hash_table
*htab
;
5208 if (info
->relocatable
|| info
->shared
)
5211 htab
= ppc_hash_table (info
);
5212 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5214 Elf_Internal_Sym
*locsyms
= NULL
;
5216 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5217 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
5219 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
5220 int expecting_tls_get_addr
;
5222 /* Read the relocations. */
5223 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
5225 if (relstart
== NULL
)
5228 expecting_tls_get_addr
= 0;
5229 relend
= relstart
+ sec
->reloc_count
;
5230 for (rel
= relstart
; rel
< relend
; rel
++)
5232 enum elf_ppc64_reloc_type r_type
;
5233 unsigned long r_symndx
;
5234 struct elf_link_hash_entry
*h
;
5235 Elf_Internal_Sym
*sym
;
5238 char tls_set
, tls_clear
, tls_type
= 0;
5240 bfd_boolean ok_tprel
, is_local
;
5242 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5243 if (!get_sym_h (&h
, &sym
, &sym_sec
, &tls_mask
, &locsyms
,
5247 if (elf_section_data (sec
)->relocs
!= relstart
)
5250 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5251 != (unsigned char *) locsyms
))
5258 if (h
->root
.type
!= bfd_link_hash_defined
5259 && h
->root
.type
!= bfd_link_hash_defweak
)
5261 value
= h
->root
.u
.def
.value
;
5264 value
= sym
->st_value
;
5269 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
5272 value
+= sym_sec
->output_offset
;
5273 value
+= sym_sec
->output_section
->vma
;
5274 value
-= htab
->elf
.tls_sec
->vma
;
5275 ok_tprel
= (value
+ TP_OFFSET
+ ((bfd_vma
) 1 << 31)
5276 < (bfd_vma
) 1 << 32);
5279 r_type
= ELF64_R_TYPE (rel
->r_info
);
5282 case R_PPC64_GOT_TLSLD16
:
5283 case R_PPC64_GOT_TLSLD16_LO
:
5284 case R_PPC64_GOT_TLSLD16_HI
:
5285 case R_PPC64_GOT_TLSLD16_HA
:
5286 /* These relocs should never be against a symbol
5287 defined in a shared lib. Leave them alone if
5288 that turns out to be the case. */
5289 ppc64_tlsld_got (ibfd
)->refcount
-= 1;
5296 tls_type
= TLS_TLS
| TLS_LD
;
5297 expecting_tls_get_addr
= 1;
5300 case R_PPC64_GOT_TLSGD16
:
5301 case R_PPC64_GOT_TLSGD16_LO
:
5302 case R_PPC64_GOT_TLSGD16_HI
:
5303 case R_PPC64_GOT_TLSGD16_HA
:
5309 tls_set
= TLS_TLS
| TLS_TPRELGD
;
5311 tls_type
= TLS_TLS
| TLS_GD
;
5312 expecting_tls_get_addr
= 1;
5315 case R_PPC64_GOT_TPREL16_DS
:
5316 case R_PPC64_GOT_TPREL16_LO_DS
:
5317 case R_PPC64_GOT_TPREL16_HI
:
5318 case R_PPC64_GOT_TPREL16_HA
:
5319 expecting_tls_get_addr
= 0;
5324 tls_clear
= TLS_TPREL
;
5325 tls_type
= TLS_TLS
| TLS_TPREL
;
5332 case R_PPC64_REL14_BRTAKEN
:
5333 case R_PPC64_REL14_BRNTAKEN
:
5336 && h
== htab
->tls_get_addr
)
5338 if (!expecting_tls_get_addr
5340 && ((ELF64_R_TYPE (rel
[-1].r_info
)
5342 || (ELF64_R_TYPE (rel
[-1].r_info
)
5343 == R_PPC64_TOC16_LO
)))
5345 /* Check for toc tls entries. */
5349 retval
= get_tls_mask (&toc_tls
, NULL
, &locsyms
,
5353 if (toc_tls
!= NULL
)
5354 expecting_tls_get_addr
= retval
> 1;
5357 if (expecting_tls_get_addr
)
5359 struct plt_entry
*ent
;
5360 for (ent
= h
->plt
.plist
; ent
; ent
= ent
->next
)
5361 if (ent
->addend
== 0)
5363 if (ent
->plt
.refcount
> 0)
5364 ent
->plt
.refcount
-= 1;
5369 expecting_tls_get_addr
= 0;
5372 case R_PPC64_TPREL64
:
5373 expecting_tls_get_addr
= 0;
5377 tls_set
= TLS_EXPLICIT
;
5378 tls_clear
= TLS_TPREL
;
5384 case R_PPC64_DTPMOD64
:
5385 expecting_tls_get_addr
= 0;
5386 if (rel
+ 1 < relend
5388 == ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
))
5389 && rel
[1].r_offset
== rel
->r_offset
+ 8)
5393 tls_set
= TLS_EXPLICIT
| TLS_GD
;
5396 tls_set
= TLS_EXPLICIT
| TLS_GD
| TLS_TPRELGD
;
5405 tls_set
= TLS_EXPLICIT
;
5411 expecting_tls_get_addr
= 0;
5415 if ((tls_set
& TLS_EXPLICIT
) == 0)
5417 struct got_entry
*ent
;
5419 /* Adjust got entry for this reloc. */
5423 ent
= elf_local_got_ents (ibfd
)[r_symndx
];
5425 for (; ent
!= NULL
; ent
= ent
->next
)
5426 if (ent
->addend
== rel
->r_addend
5427 && ent
->owner
== ibfd
5428 && ent
->tls_type
== tls_type
)
5435 /* We managed to get rid of a got entry. */
5436 if (ent
->got
.refcount
> 0)
5437 ent
->got
.refcount
-= 1;
5442 struct ppc_link_hash_entry
* eh
;
5443 struct ppc_dyn_relocs
**pp
;
5444 struct ppc_dyn_relocs
*p
;
5446 /* Adjust dynamic relocs. */
5447 eh
= (struct ppc_link_hash_entry
*) h
;
5448 for (pp
= &eh
->dyn_relocs
;
5453 /* If we got rid of a DTPMOD/DTPREL reloc
5454 pair then we'll lose one or two dyn
5456 if (tls_set
== (TLS_EXPLICIT
| TLS_GD
))
5465 *tls_mask
|= tls_set
;
5466 *tls_mask
&= ~tls_clear
;
5469 if (elf_section_data (sec
)->relocs
!= relstart
)
5474 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5475 != (unsigned char *) locsyms
))
5477 if (!info
->keep_memory
)
5480 elf_tdata (ibfd
)->symtab_hdr
.contents
= (unsigned char *) locsyms
;
5486 /* This is the condition under which ppc64_elf_finish_dynamic_symbol
5487 will be called from elflink.h. If elflink.h doesn't call our
5488 finish_dynamic_symbol routine, we'll need to do something about
5489 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5490 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
5493 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5494 && ((H)->dynindx != -1 \
5495 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5497 /* Allocate space in .plt, .got and associated reloc sections for
5501 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
5503 struct bfd_link_info
*info
;
5504 struct ppc_link_hash_table
*htab
;
5506 struct ppc_link_hash_entry
*eh
;
5507 struct ppc_dyn_relocs
*p
;
5508 struct got_entry
*gent
;
5510 if (h
->root
.type
== bfd_link_hash_indirect
)
5513 if (h
->root
.type
== bfd_link_hash_warning
)
5514 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5516 info
= (struct bfd_link_info
*) inf
;
5517 htab
= ppc_hash_table (info
);
5519 if (htab
->elf
.dynamic_sections_created
5521 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, h
))
5523 struct plt_entry
*pent
;
5524 bfd_boolean doneone
= FALSE
;
5525 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
5526 if (pent
->plt
.refcount
> 0)
5528 BFD_ASSERT (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
);
5530 /* If this is the first .plt entry, make room for the special
5533 if (s
->_raw_size
== 0)
5534 s
->_raw_size
+= PLT_INITIAL_ENTRY_SIZE
;
5536 pent
->plt
.offset
= s
->_raw_size
;
5538 /* Make room for this entry. */
5539 s
->_raw_size
+= PLT_ENTRY_SIZE
;
5541 /* Make room for the .glink code. */
5543 if (s
->_raw_size
== 0)
5544 s
->_raw_size
+= GLINK_CALL_STUB_SIZE
;
5545 /* We need bigger stubs past index 32767. */
5546 if (s
->_raw_size
>= GLINK_CALL_STUB_SIZE
+ 32768*2*4)
5548 s
->_raw_size
+= 2*4;
5550 /* We also need to make an entry in the .rela.plt section. */
5552 s
->_raw_size
+= sizeof (Elf64_External_Rela
);
5556 pent
->plt
.offset
= (bfd_vma
) -1;
5559 h
->plt
.plist
= NULL
;
5560 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5565 h
->plt
.plist
= NULL
;
5566 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5569 eh
= (struct ppc_link_hash_entry
*) h
;
5570 /* Run through the TLS GD got entries first if we're changing them
5572 if ((eh
->tls_mask
& TLS_TPRELGD
) != 0)
5573 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5574 if (gent
->got
.refcount
> 0
5575 && (gent
->tls_type
& TLS_GD
) != 0)
5577 /* This was a GD entry that has been converted to TPREL. If
5578 there happens to be a TPREL entry we can use that one. */
5579 struct got_entry
*ent
;
5580 for (ent
= h
->got
.glist
; ent
!= NULL
; ent
= ent
->next
)
5581 if (ent
->got
.refcount
> 0
5582 && (ent
->tls_type
& TLS_TPREL
) != 0
5583 && ent
->addend
== gent
->addend
5584 && ent
->owner
== gent
->owner
)
5586 gent
->got
.refcount
= 0;
5590 /* If not, then we'll be using our own TPREL entry. */
5591 if (gent
->got
.refcount
!= 0)
5592 gent
->tls_type
= TLS_TLS
| TLS_TPREL
;
5595 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5596 if (gent
->got
.refcount
> 0)
5600 /* Make sure this symbol is output as a dynamic symbol.
5601 Undefined weak syms won't yet be marked as dynamic,
5602 nor will all TLS symbols. */
5603 if (h
->dynindx
== -1
5604 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5606 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5610 if ((gent
->tls_type
& TLS_LD
) != 0
5611 && !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
5613 gent
->got
.offset
= ppc64_tlsld_got (gent
->owner
)->offset
;
5617 s
= ppc64_elf_tdata (gent
->owner
)->got
;
5618 gent
->got
.offset
= s
->_raw_size
;
5620 += (gent
->tls_type
& eh
->tls_mask
& (TLS_GD
| TLS_LD
)) ? 16 : 8;
5621 dyn
= htab
->elf
.dynamic_sections_created
;
5623 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, h
))
5624 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
5625 || h
->root
.type
!= bfd_link_hash_undefweak
))
5626 ppc64_elf_tdata (gent
->owner
)->relgot
->_raw_size
5627 += (gent
->tls_type
& eh
->tls_mask
& TLS_GD
5628 ? 2 * sizeof (Elf64_External_Rela
)
5629 : sizeof (Elf64_External_Rela
));
5632 gent
->got
.offset
= (bfd_vma
) -1;
5634 if (eh
->dyn_relocs
== NULL
)
5637 /* In the shared -Bsymbolic case, discard space allocated for
5638 dynamic pc-relative relocs against symbols which turn out to be
5639 defined in regular objects. For the normal shared case, discard
5640 space for relocs that have become local due to symbol visibility
5645 /* Relocs that use pc_count are those that appear on a call insn,
5646 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
5647 generated via assembly. We want calls to protected symbols to
5648 resolve directly to the function rather than going via the plt.
5649 If people want function pointer comparisons to work as expected
5650 then they should avoid writing weird assembly. */
5651 if (SYMBOL_CALLS_LOCAL (info
, h
))
5653 struct ppc_dyn_relocs
**pp
;
5655 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
5657 p
->count
-= p
->pc_count
;
5666 /* Also discard relocs on undefined weak syms with non-default
5668 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
5669 && h
->root
.type
== bfd_link_hash_undefweak
)
5670 eh
->dyn_relocs
= NULL
;
5672 else if (ELIMINATE_COPY_RELOCS
)
5674 /* For the non-shared case, discard space for relocs against
5675 symbols which turn out to need copy relocs or are not
5678 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
5679 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
5680 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
5682 /* Make sure this symbol is output as a dynamic symbol.
5683 Undefined weak syms won't yet be marked as dynamic. */
5684 if (h
->dynindx
== -1
5685 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5687 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5691 /* If that succeeded, we know we'll be keeping all the
5693 if (h
->dynindx
!= -1)
5697 eh
->dyn_relocs
= NULL
;
5702 /* Finally, allocate space. */
5703 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5705 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
5706 sreloc
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5712 /* Find any dynamic relocs that apply to read-only sections. */
5715 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
5717 struct ppc_link_hash_entry
*eh
;
5718 struct ppc_dyn_relocs
*p
;
5720 if (h
->root
.type
== bfd_link_hash_warning
)
5721 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5723 eh
= (struct ppc_link_hash_entry
*) h
;
5724 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5726 asection
*s
= p
->sec
->output_section
;
5728 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
5730 struct bfd_link_info
*info
= inf
;
5732 info
->flags
|= DF_TEXTREL
;
5734 /* Not an error, just cut short the traversal. */
5741 /* Set the sizes of the dynamic sections. */
5744 ppc64_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
5745 struct bfd_link_info
*info
)
5747 struct ppc_link_hash_table
*htab
;
5753 htab
= ppc_hash_table (info
);
5754 dynobj
= htab
->elf
.dynobj
;
5758 if (htab
->elf
.dynamic_sections_created
)
5760 /* Set the contents of the .interp section to the interpreter. */
5761 if (info
->executable
)
5763 s
= bfd_get_section_by_name (dynobj
, ".interp");
5766 s
->_raw_size
= sizeof ELF_DYNAMIC_INTERPRETER
;
5767 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
5771 /* Set up .got offsets for local syms, and space for local dynamic
5773 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5775 struct got_entry
**lgot_ents
;
5776 struct got_entry
**end_lgot_ents
;
5778 bfd_size_type locsymcount
;
5779 Elf_Internal_Shdr
*symtab_hdr
;
5782 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
5785 if (ppc64_tlsld_got (ibfd
)->refcount
> 0)
5787 s
= ppc64_elf_tdata (ibfd
)->got
;
5788 ppc64_tlsld_got (ibfd
)->offset
= s
->_raw_size
;
5792 srel
= ppc64_elf_tdata (ibfd
)->relgot
;
5793 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5797 ppc64_tlsld_got (ibfd
)->offset
= (bfd_vma
) -1;
5799 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
5801 struct ppc_dyn_relocs
*p
;
5803 for (p
= *((struct ppc_dyn_relocs
**)
5804 &elf_section_data (s
)->local_dynrel
);
5808 if (!bfd_is_abs_section (p
->sec
)
5809 && bfd_is_abs_section (p
->sec
->output_section
))
5811 /* Input section has been discarded, either because
5812 it is a copy of a linkonce section or due to
5813 linker script /DISCARD/, so we'll be discarding
5816 else if (p
->count
!= 0)
5818 srel
= elf_section_data (p
->sec
)->sreloc
;
5819 srel
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5820 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
5821 info
->flags
|= DF_TEXTREL
;
5826 lgot_ents
= elf_local_got_ents (ibfd
);
5830 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
5831 locsymcount
= symtab_hdr
->sh_info
;
5832 end_lgot_ents
= lgot_ents
+ locsymcount
;
5833 lgot_masks
= (char *) end_lgot_ents
;
5834 s
= ppc64_elf_tdata (ibfd
)->got
;
5835 srel
= ppc64_elf_tdata (ibfd
)->relgot
;
5836 for (; lgot_ents
< end_lgot_ents
; ++lgot_ents
, ++lgot_masks
)
5838 struct got_entry
*ent
;
5840 for (ent
= *lgot_ents
; ent
!= NULL
; ent
= ent
->next
)
5841 if (ent
->got
.refcount
> 0)
5843 if ((ent
->tls_type
& *lgot_masks
& TLS_LD
) != 0)
5845 if (ppc64_tlsld_got (ibfd
)->offset
== (bfd_vma
) -1)
5847 ppc64_tlsld_got (ibfd
)->offset
= s
->_raw_size
;
5850 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5852 ent
->got
.offset
= ppc64_tlsld_got (ibfd
)->offset
;
5856 ent
->got
.offset
= s
->_raw_size
;
5857 if ((ent
->tls_type
& *lgot_masks
& TLS_GD
) != 0)
5861 srel
->_raw_size
+= 2 * sizeof (Elf64_External_Rela
);
5867 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5872 ent
->got
.offset
= (bfd_vma
) -1;
5876 /* Allocate global sym .plt and .got entries, and space for global
5877 sym dynamic relocs. */
5878 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, info
);
5880 /* We now have determined the sizes of the various dynamic sections.
5881 Allocate memory for them. */
5883 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
5885 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
5888 /* Reset _cooked_size since prelim layout will set it wrongly,
5889 and a non-zero _cooked_size sticks. */
5890 s
->_cooked_size
= 0;
5892 if (s
== htab
->brlt
|| s
== htab
->relbrlt
)
5893 /* These haven't been allocated yet; don't strip. */
5895 else if (s
== htab
->got
5897 || s
== htab
->glink
)
5899 /* Strip this section if we don't need it; see the
5902 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
5904 if (s
->_raw_size
== 0)
5906 /* If we don't need this section, strip it from the
5907 output file. This is mostly to handle .rela.bss and
5908 .rela.plt. We must create both sections in
5909 create_dynamic_sections, because they must be created
5910 before the linker maps input sections to output
5911 sections. The linker does that before
5912 adjust_dynamic_symbol is called, and it is that
5913 function which decides whether anything needs to go
5914 into these sections. */
5918 if (s
!= htab
->relplt
)
5921 /* We use the reloc_count field as a counter if we need
5922 to copy relocs into the output file. */
5928 /* It's not one of our sections, so don't allocate space. */
5932 if (s
->_raw_size
== 0)
5934 _bfd_strip_section_from_output (info
, s
);
5938 /* .plt is in the bss section. We don't initialise it. */
5939 if ((s
->flags
& SEC_LOAD
) == 0)
5942 /* Allocate memory for the section contents. We use bfd_zalloc
5943 here in case unused entries are not reclaimed before the
5944 section's contents are written out. This should not happen,
5945 but this way if it does we get a R_PPC64_NONE reloc in .rela
5946 sections instead of garbage.
5947 We also rely on the section contents being zero when writing
5949 s
->contents
= bfd_zalloc (dynobj
, s
->_raw_size
);
5950 if (s
->contents
== NULL
)
5954 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5956 s
= ppc64_elf_tdata (ibfd
)->got
;
5957 if (s
!= NULL
&& s
!= htab
->got
)
5959 s
->_cooked_size
= 0;
5960 if (s
->_raw_size
== 0)
5961 _bfd_strip_section_from_output (info
, s
);
5964 s
->contents
= bfd_zalloc (ibfd
, s
->_raw_size
);
5965 if (s
->contents
== NULL
)
5969 s
= ppc64_elf_tdata (ibfd
)->relgot
;
5972 s
->_cooked_size
= 0;
5973 if (s
->_raw_size
== 0)
5974 _bfd_strip_section_from_output (info
, s
);
5977 s
->contents
= bfd_zalloc (ibfd
, s
->_raw_size
);
5978 if (s
->contents
== NULL
)
5986 if (htab
->elf
.dynamic_sections_created
)
5988 /* Add some entries to the .dynamic section. We fill in the
5989 values later, in ppc64_elf_finish_dynamic_sections, but we
5990 must add the entries now so that we get the correct size for
5991 the .dynamic section. The DT_DEBUG entry is filled in by the
5992 dynamic linker and used by the debugger. */
5993 #define add_dynamic_entry(TAG, VAL) \
5994 bfd_elf64_add_dynamic_entry (info, (TAG), (VAL))
5996 if (info
->executable
)
5998 if (!add_dynamic_entry (DT_DEBUG
, 0))
6002 if (htab
->plt
!= NULL
&& htab
->plt
->_raw_size
!= 0)
6004 if (!add_dynamic_entry (DT_PLTGOT
, 0)
6005 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
6006 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
6007 || !add_dynamic_entry (DT_JMPREL
, 0)
6008 || !add_dynamic_entry (DT_PPC64_GLINK
, 0))
6014 if (!add_dynamic_entry (DT_PPC64_OPD
, 0)
6015 || !add_dynamic_entry (DT_PPC64_OPDSZ
, 0))
6021 if (!add_dynamic_entry (DT_RELA
, 0)
6022 || !add_dynamic_entry (DT_RELASZ
, 0)
6023 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf64_External_Rela
)))
6026 /* If any dynamic relocs apply to a read-only section,
6027 then we need a DT_TEXTREL entry. */
6028 if ((info
->flags
& DF_TEXTREL
) == 0)
6029 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
, info
);
6031 if ((info
->flags
& DF_TEXTREL
) != 0)
6033 if (!add_dynamic_entry (DT_TEXTREL
, 0))
6038 #undef add_dynamic_entry
6043 /* Determine the type of stub needed, if any, for a call. */
6045 static inline enum ppc_stub_type
6046 ppc_type_of_stub (asection
*input_sec
,
6047 const Elf_Internal_Rela
*rel
,
6048 struct ppc_link_hash_entry
**hash
,
6049 bfd_vma destination
)
6051 struct ppc_link_hash_entry
*h
= *hash
;
6053 bfd_vma branch_offset
;
6054 bfd_vma max_branch_offset
;
6055 enum elf_ppc64_reloc_type r_type
;
6060 && h
->oh
->dynindx
!= -1)
6062 struct plt_entry
*ent
;
6063 for (ent
= h
->oh
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6064 if (ent
->addend
== rel
->r_addend
6065 && ent
->plt
.offset
!= (bfd_vma
) -1)
6067 *hash
= (struct ppc_link_hash_entry
*) h
->oh
;
6068 return ppc_stub_plt_call
;
6072 if (h
->elf
.root
.type
!= bfd_link_hash_defined
6073 && h
->elf
.root
.type
!= bfd_link_hash_defweak
)
6074 return ppc_stub_none
;
6077 /* Determine where the call point is. */
6078 location
= (input_sec
->output_offset
6079 + input_sec
->output_section
->vma
6082 branch_offset
= destination
- location
;
6083 r_type
= ELF64_R_TYPE (rel
->r_info
);
6085 /* Determine if a long branch stub is needed. */
6086 max_branch_offset
= 1 << 25;
6087 if (r_type
!= R_PPC64_REL24
)
6088 max_branch_offset
= 1 << 15;
6090 if (branch_offset
+ max_branch_offset
>= 2 * max_branch_offset
)
6091 /* We need a stub. Figure out whether a long_branch or plt_branch
6093 return ppc_stub_long_branch
;
6095 return ppc_stub_none
;
6098 /* Build a .plt call stub. */
6100 static inline bfd_byte
*
6101 build_plt_stub (bfd
*obfd
, bfd_byte
*p
, int offset
)
6103 #define PPC_LO(v) ((v) & 0xffff)
6104 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6105 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6107 bfd_put_32 (obfd
, ADDIS_R12_R2
| PPC_HA (offset
), p
), p
+= 4;
6108 bfd_put_32 (obfd
, STD_R2_40R1
, p
), p
+= 4;
6109 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6110 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6111 bfd_put_32 (obfd
, ADDIS_R12_R12
| 1, p
), p
+= 4;
6113 bfd_put_32 (obfd
, LD_R2_0R12
| PPC_LO (offset
), p
), p
+= 4;
6114 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6115 bfd_put_32 (obfd
, ADDIS_R12_R12
| 1, p
), p
+= 4;
6117 bfd_put_32 (obfd
, MTCTR_R11
, p
), p
+= 4;
6118 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6119 bfd_put_32 (obfd
, BCTR
, p
), p
+= 4;
6124 ppc_build_one_stub (struct bfd_hash_entry
*gen_entry
, void *in_arg
)
6126 struct ppc_stub_hash_entry
*stub_entry
;
6127 struct ppc_branch_hash_entry
*br_entry
;
6128 struct bfd_link_info
*info
;
6129 struct ppc_link_hash_table
*htab
;
6133 struct plt_entry
*ent
;
6137 /* Massage our args to the form they really have. */
6138 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6141 htab
= ppc_hash_table (info
);
6143 /* Make a note of the offset within the stubs for this entry. */
6144 stub_entry
->stub_offset
= stub_entry
->stub_sec
->_cooked_size
;
6145 loc
= stub_entry
->stub_sec
->contents
+ stub_entry
->stub_offset
;
6147 htab
->stub_count
[stub_entry
->stub_type
- 1] += 1;
6148 switch (stub_entry
->stub_type
)
6150 case ppc_stub_long_branch
:
6151 case ppc_stub_long_branch_r2off
:
6152 /* Branches are relative. This is where we are going to. */
6153 off
= (stub_entry
->target_value
6154 + stub_entry
->target_section
->output_offset
6155 + stub_entry
->target_section
->output_section
->vma
);
6157 /* And this is where we are coming from. */
6158 off
-= (stub_entry
->stub_offset
6159 + stub_entry
->stub_sec
->output_offset
6160 + stub_entry
->stub_sec
->output_section
->vma
);
6162 if (stub_entry
->stub_type
!= ppc_stub_long_branch_r2off
)
6168 r2off
= (htab
->stub_group
[stub_entry
->target_section
->id
].toc_off
6169 - htab
->stub_group
[stub_entry
->id_sec
->id
].toc_off
);
6170 bfd_put_32 (htab
->stub_bfd
, STD_R2_40R1
, loc
);
6172 bfd_put_32 (htab
->stub_bfd
, ADDIS_R2_R2
| PPC_HA (r2off
), loc
);
6174 bfd_put_32 (htab
->stub_bfd
, ADDI_R2_R2
| PPC_LO (r2off
), loc
);
6179 bfd_put_32 (htab
->stub_bfd
, B_DOT
| (off
& 0x3fffffc), loc
);
6181 BFD_ASSERT (off
+ (1 << 25) < (bfd_vma
) (1 << 26));
6184 case ppc_stub_plt_branch
:
6185 case ppc_stub_plt_branch_r2off
:
6186 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6187 stub_entry
->root
.string
+ 9,
6189 if (br_entry
== NULL
)
6191 (*_bfd_error_handler
) (_("can't find branch stub `%s'"),
6192 stub_entry
->root
.string
+ 9);
6193 htab
->stub_error
= TRUE
;
6197 off
= (stub_entry
->target_value
6198 + stub_entry
->target_section
->output_offset
6199 + stub_entry
->target_section
->output_section
->vma
);
6201 bfd_put_64 (htab
->brlt
->owner
, off
,
6202 htab
->brlt
->contents
+ br_entry
->offset
);
6206 /* Create a reloc for the branch lookup table entry. */
6207 Elf_Internal_Rela rela
;
6210 rela
.r_offset
= (br_entry
->offset
6211 + htab
->brlt
->output_offset
6212 + htab
->brlt
->output_section
->vma
);
6213 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
6214 rela
.r_addend
= off
;
6216 rl
= htab
->relbrlt
->contents
;
6217 rl
+= htab
->relbrlt
->reloc_count
++ * sizeof (Elf64_External_Rela
);
6218 bfd_elf64_swap_reloca_out (htab
->relbrlt
->owner
, &rela
, rl
);
6221 off
= (br_entry
->offset
6222 + htab
->brlt
->output_offset
6223 + htab
->brlt
->output_section
->vma
6224 - elf_gp (htab
->brlt
->output_section
->owner
)
6225 - htab
->stub_group
[stub_entry
->id_sec
->id
].toc_off
);
6227 if (off
+ 0x80008000 > 0xffffffff || (off
& 7) != 0)
6229 (*_bfd_error_handler
)
6230 (_("linkage table error against `%s'"),
6231 stub_entry
->root
.string
);
6232 bfd_set_error (bfd_error_bad_value
);
6233 htab
->stub_error
= TRUE
;
6238 if (stub_entry
->stub_type
!= ppc_stub_plt_branch_r2off
)
6240 bfd_put_32 (htab
->stub_bfd
, ADDIS_R12_R2
| PPC_HA (indx
), loc
);
6242 bfd_put_32 (htab
->stub_bfd
, LD_R11_0R12
| PPC_LO (indx
), loc
);
6249 r2off
= (htab
->stub_group
[stub_entry
->target_section
->id
].toc_off
6250 - htab
->stub_group
[stub_entry
->id_sec
->id
].toc_off
);
6251 bfd_put_32 (htab
->stub_bfd
, STD_R2_40R1
, loc
);
6253 bfd_put_32 (htab
->stub_bfd
, ADDIS_R12_R2
| PPC_HA (indx
), loc
);
6255 bfd_put_32 (htab
->stub_bfd
, LD_R11_0R12
| PPC_LO (indx
), loc
);
6257 bfd_put_32 (htab
->stub_bfd
, ADDIS_R2_R2
| PPC_HA (r2off
), loc
);
6259 bfd_put_32 (htab
->stub_bfd
, ADDI_R2_R2
| PPC_LO (r2off
), loc
);
6263 bfd_put_32 (htab
->stub_bfd
, MTCTR_R11
, loc
);
6265 bfd_put_32 (htab
->stub_bfd
, BCTR
, loc
);
6268 case ppc_stub_plt_call
:
6269 /* Do the best we can for shared libraries built without
6270 exporting ".foo" for each "foo". This can happen when symbol
6271 versioning scripts strip all bar a subset of symbols. */
6272 if (stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defined
6273 && stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defweak
)
6275 /* Point the symbol at the stub. There may be multiple stubs,
6276 we don't really care; The main thing is to make this sym
6277 defined somewhere. Maybe defining the symbol in the stub
6278 section is a silly idea. If we didn't do this, htab->top_id
6280 stub_entry
->h
->oh
->root
.type
= bfd_link_hash_defined
;
6281 stub_entry
->h
->oh
->root
.u
.def
.section
= stub_entry
->stub_sec
;
6282 stub_entry
->h
->oh
->root
.u
.def
.value
= stub_entry
->stub_offset
;
6285 /* Now build the stub. */
6287 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6288 if (ent
->addend
== stub_entry
->addend
)
6290 off
= ent
->plt
.offset
;
6293 if (off
>= (bfd_vma
) -2)
6296 off
&= ~ (bfd_vma
) 1;
6297 off
+= (htab
->plt
->output_offset
6298 + htab
->plt
->output_section
->vma
6299 - elf_gp (htab
->plt
->output_section
->owner
)
6300 - htab
->stub_group
[stub_entry
->id_sec
->id
].toc_off
);
6302 if (off
+ 0x80008000 > 0xffffffff || (off
& 7) != 0)
6304 (*_bfd_error_handler
)
6305 (_("linkage table error against `%s'"),
6306 stub_entry
->h
->elf
.root
.root
.string
);
6307 bfd_set_error (bfd_error_bad_value
);
6308 htab
->stub_error
= TRUE
;
6312 p
= build_plt_stub (htab
->stub_bfd
, loc
, off
);
6321 stub_entry
->stub_sec
->_cooked_size
+= size
;
6323 if (htab
->emit_stub_syms
6324 && !(stub_entry
->stub_type
== ppc_stub_plt_call
6325 && stub_entry
->h
->oh
->root
.type
== bfd_link_hash_defined
6326 && stub_entry
->h
->oh
->root
.u
.def
.section
== stub_entry
->stub_sec
6327 && stub_entry
->h
->oh
->root
.u
.def
.value
== stub_entry
->stub_offset
))
6329 struct elf_link_hash_entry
*h
;
6330 h
= elf_link_hash_lookup (&htab
->elf
, stub_entry
->root
.string
,
6331 TRUE
, FALSE
, FALSE
);
6334 if (h
->root
.type
== bfd_link_hash_new
)
6336 h
->root
.type
= bfd_link_hash_defined
;
6337 h
->root
.u
.def
.section
= stub_entry
->stub_sec
;
6338 h
->root
.u
.def
.value
= stub_entry
->stub_offset
;
6339 h
->elf_link_hash_flags
= (ELF_LINK_HASH_REF_REGULAR
6340 | ELF_LINK_HASH_DEF_REGULAR
6341 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
6342 | ELF_LINK_FORCED_LOCAL
);
6349 /* As above, but don't actually build the stub. Just bump offset so
6350 we know stub section sizes, and select plt_branch stubs where
6351 long_branch stubs won't do. */
6354 ppc_size_one_stub (struct bfd_hash_entry
*gen_entry
, void *in_arg
)
6356 struct ppc_stub_hash_entry
*stub_entry
;
6357 struct bfd_link_info
*info
;
6358 struct ppc_link_hash_table
*htab
;
6362 /* Massage our args to the form they really have. */
6363 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6366 htab
= ppc_hash_table (info
);
6368 if (stub_entry
->stub_type
== ppc_stub_plt_call
)
6370 struct plt_entry
*ent
;
6372 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6373 if (ent
->addend
== stub_entry
->addend
)
6375 off
= ent
->plt
.offset
& ~(bfd_vma
) 1;
6378 if (off
>= (bfd_vma
) -2)
6380 off
+= (htab
->plt
->output_offset
6381 + htab
->plt
->output_section
->vma
6382 - elf_gp (htab
->plt
->output_section
->owner
)
6383 - htab
->stub_group
[stub_entry
->id_sec
->id
].toc_off
);
6385 size
= PLT_CALL_STUB_SIZE
;
6386 if (PPC_HA (off
+ 16) != PPC_HA (off
))
6391 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
6393 off
= (stub_entry
->target_value
6394 + stub_entry
->target_section
->output_offset
6395 + stub_entry
->target_section
->output_section
->vma
);
6396 off
-= (stub_entry
->stub_sec
->_raw_size
6397 + stub_entry
->stub_sec
->output_offset
6398 + stub_entry
->stub_sec
->output_section
->vma
);
6400 /* Reset the stub type from the plt variant in case we now
6401 can reach with a shorter stub. */
6402 if (stub_entry
->stub_type
>= ppc_stub_plt_branch
)
6403 stub_entry
->stub_type
+= ppc_stub_long_branch
- ppc_stub_plt_branch
;
6406 if (stub_entry
->stub_type
== ppc_stub_long_branch_r2off
)
6412 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
6413 if (off
+ (1 << 25) >= (bfd_vma
) (1 << 26))
6415 struct ppc_branch_hash_entry
*br_entry
;
6417 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6418 stub_entry
->root
.string
+ 9,
6420 if (br_entry
== NULL
)
6422 (*_bfd_error_handler
) (_("can't build branch stub `%s'"),
6423 stub_entry
->root
.string
+ 9);
6424 htab
->stub_error
= TRUE
;
6428 if (br_entry
->iter
!= htab
->stub_iteration
)
6430 br_entry
->iter
= htab
->stub_iteration
;
6431 br_entry
->offset
= htab
->brlt
->_raw_size
;
6432 htab
->brlt
->_raw_size
+= 8;
6435 htab
->relbrlt
->_raw_size
+= sizeof (Elf64_External_Rela
);
6438 stub_entry
->stub_type
+= ppc_stub_plt_branch
- ppc_stub_long_branch
;
6440 if (stub_entry
->stub_type
!= ppc_stub_plt_branch
)
6445 stub_entry
->stub_sec
->_raw_size
+= size
;
6449 /* Set up various things so that we can make a list of input sections
6450 for each output section included in the link. Returns -1 on error,
6451 0 when no stubs will be needed, and 1 on success. */
6454 ppc64_elf_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
6457 int top_id
, top_index
, id
;
6459 asection
**input_list
;
6461 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6463 if (htab
->brlt
== NULL
)
6466 /* Find the top input section id. */
6467 for (input_bfd
= info
->input_bfds
, top_id
= 3;
6469 input_bfd
= input_bfd
->link_next
)
6471 for (section
= input_bfd
->sections
;
6473 section
= section
->next
)
6475 if (top_id
< section
->id
)
6476 top_id
= section
->id
;
6480 htab
->top_id
= top_id
;
6481 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
6482 htab
->stub_group
= bfd_zmalloc (amt
);
6483 if (htab
->stub_group
== NULL
)
6486 /* Set toc_off for com, und, abs and ind sections. */
6487 for (id
= 0; id
< 3; id
++)
6488 htab
->stub_group
[id
].toc_off
= TOC_BASE_OFF
;
6490 elf_gp (output_bfd
) = htab
->toc_curr
= ppc64_elf_toc (output_bfd
);
6492 /* We can't use output_bfd->section_count here to find the top output
6493 section index as some sections may have been removed, and
6494 _bfd_strip_section_from_output doesn't renumber the indices. */
6495 for (section
= output_bfd
->sections
, top_index
= 0;
6497 section
= section
->next
)
6499 if (top_index
< section
->index
)
6500 top_index
= section
->index
;
6503 htab
->top_index
= top_index
;
6504 amt
= sizeof (asection
*) * (top_index
+ 1);
6505 input_list
= bfd_zmalloc (amt
);
6506 htab
->input_list
= input_list
;
6507 if (input_list
== NULL
)
6513 /* The linker repeatedly calls this function for each TOC input section
6514 and linker generated GOT section. Group input bfds such that the toc
6515 within a group is less than 64k in size. Will break with cute linker
6516 scripts that play games with dot in the output toc section. */
6519 ppc64_elf_next_toc_section (struct bfd_link_info
*info
, asection
*isec
)
6521 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6523 if (!htab
->no_multi_toc
)
6525 bfd_vma addr
= isec
->output_offset
+ isec
->output_section
->vma
;
6526 bfd_vma off
= addr
- htab
->toc_curr
;
6527 if (off
+ isec
->_raw_size
> 0x10000)
6529 htab
->toc_curr
= addr
;
6530 htab
->multi_toc_needed
= 1;
6532 elf_gp (isec
->owner
) = (htab
->toc_curr
6533 - elf_gp (isec
->output_section
->owner
)
6538 /* Called after the last call to the above function. */
6541 ppc64_elf_reinit_toc (bfd
*output_bfd ATTRIBUTE_UNUSED
,
6542 struct bfd_link_info
*info
)
6544 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6546 /* toc_curr tracks the TOC offset used for code sections below in
6547 ppc64_elf_next_input_section. Start off at 0x8000. */
6548 htab
->toc_curr
= TOC_BASE_OFF
;
6551 /* No toc references were found in ISEC. If the code in ISEC makes no
6552 calls, then there's no need to use toc adjusting stubs when branching
6553 into ISEC. Actually, indirect calls from ISEC are OK as they will
6557 toc_adjusting_stub_needed (struct bfd_link_info
*info
, asection
*isec
)
6564 /* We know none of our code bearing sections will need toc stubs. */
6565 if ((isec
->flags
& SEC_LINKER_CREATED
) != 0)
6568 /* Hack for linux kernel. .fixup contains branches, but only back to
6569 the function that hit an exception. */
6570 branch_ok
= strcmp (isec
->name
, ".fixup") == 0;
6572 contents
= elf_section_data (isec
)->this_hdr
.contents
;
6573 if (contents
== NULL
)
6575 contents
= bfd_malloc (isec
->_raw_size
);
6576 if (contents
== NULL
)
6578 if (! bfd_get_section_contents (isec
->owner
, isec
, contents
,
6579 0, isec
->_raw_size
))
6584 if (info
->keep_memory
)
6585 elf_section_data (isec
)->this_hdr
.contents
= contents
;
6588 /* Code scan, because we don't necessarily have relocs on calls to
6589 static functions. */
6591 for (i
= 0; i
< isec
->_raw_size
; i
+= 4)
6593 unsigned long insn
= bfd_get_32 (isec
->owner
, contents
+ i
);
6594 /* Is this a branch? */
6595 if ((insn
& (0x3f << 26)) == (18 << 26)
6596 /* If branch and link, it's a function call. */
6598 /* Sibling calls use a plain branch. I don't know a way
6599 of deciding whether a branch is really a sibling call. */
6607 if (elf_section_data (isec
)->this_hdr
.contents
!= contents
)
6612 /* The linker repeatedly calls this function for each input section,
6613 in the order that input sections are linked into output sections.
6614 Build lists of input sections to determine groupings between which
6615 we may insert linker stubs. */
6618 ppc64_elf_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
6620 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6623 if ((isec
->output_section
->flags
& SEC_CODE
) != 0
6624 && isec
->output_section
->index
<= htab
->top_index
)
6626 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
6627 /* Steal the link_sec pointer for our list. */
6628 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6629 /* This happens to make the list in reverse order,
6630 which is what we want. */
6631 PREV_SEC (isec
) = *list
;
6635 /* If a code section has a function that uses the TOC then we need
6636 to use the right TOC (obviously). Also, make sure that .opd gets
6637 the correct TOC value for R_PPC64_TOC relocs that don't have or
6638 can't find their function symbol (shouldn't ever happen now). */
6639 if (isec
->has_gp_reloc
|| (isec
->flags
& SEC_CODE
) == 0)
6641 if (elf_gp (isec
->owner
) != 0)
6642 htab
->toc_curr
= elf_gp (isec
->owner
);
6644 else if ((ret
= toc_adjusting_stub_needed (info
, isec
)) < 0)
6647 isec
->has_gp_reloc
= ret
;
6649 /* Functions that don't use the TOC can belong in any TOC group.
6650 Use the last TOC base. This happens to make _init and _fini
6652 htab
->stub_group
[isec
->id
].toc_off
= htab
->toc_curr
;
6656 /* See whether we can group stub sections together. Grouping stub
6657 sections may result in fewer stubs. More importantly, we need to
6658 put all .init* and .fini* stubs at the beginning of the .init or
6659 .fini output sections respectively, because glibc splits the
6660 _init and _fini functions into multiple parts. Putting a stub in
6661 the middle of a function is not a good idea. */
6664 group_sections (struct ppc_link_hash_table
*htab
,
6665 bfd_size_type stub_group_size
,
6666 bfd_boolean stubs_always_before_branch
)
6668 asection
**list
= htab
->input_list
+ htab
->top_index
;
6671 asection
*tail
= *list
;
6672 while (tail
!= NULL
)
6676 bfd_size_type total
;
6677 bfd_boolean big_sec
;
6681 if (tail
->_cooked_size
)
6682 total
= tail
->_cooked_size
;
6684 total
= tail
->_raw_size
;
6685 big_sec
= total
>= stub_group_size
;
6686 curr_toc
= htab
->stub_group
[tail
->id
].toc_off
;
6688 while ((prev
= PREV_SEC (curr
)) != NULL
6689 && ((total
+= curr
->output_offset
- prev
->output_offset
)
6691 && htab
->stub_group
[prev
->id
].toc_off
== curr_toc
)
6694 /* OK, the size from the start of CURR to the end is less
6695 than stub_group_size and thus can be handled by one stub
6696 section. (or the tail section is itself larger than
6697 stub_group_size, in which case we may be toast.) We
6698 should really be keeping track of the total size of stubs
6699 added here, as stubs contribute to the final output
6700 section size. That's a little tricky, and this way will
6701 only break if stubs added make the total size more than
6702 2^25, ie. for the default stub_group_size, if stubs total
6703 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6706 prev
= PREV_SEC (tail
);
6707 /* Set up this stub group. */
6708 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6710 while (tail
!= curr
&& (tail
= prev
) != NULL
);
6712 /* But wait, there's more! Input sections up to stub_group_size
6713 bytes before the stub section can be handled by it too.
6714 Don't do this if we have a really large section after the
6715 stubs, as adding more stubs increases the chance that
6716 branches may not reach into the stub section. */
6717 if (!stubs_always_before_branch
&& !big_sec
)
6721 && ((total
+= tail
->output_offset
- prev
->output_offset
)
6723 && htab
->stub_group
[prev
->id
].toc_off
== curr_toc
)
6726 prev
= PREV_SEC (tail
);
6727 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6733 while (list
-- != htab
->input_list
);
6734 free (htab
->input_list
);
6738 /* Determine and set the size of the stub section for a final link.
6740 The basic idea here is to examine all the relocations looking for
6741 PC-relative calls to a target that is unreachable with a "bl"
6745 ppc64_elf_size_stubs (bfd
*output_bfd
,
6746 struct bfd_link_info
*info
,
6747 bfd_signed_vma group_size
,
6748 asection
*(*add_stub_section
) (const char *, asection
*),
6749 void (*layout_sections_again
) (void))
6751 bfd_size_type stub_group_size
;
6752 bfd_boolean stubs_always_before_branch
;
6753 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6755 /* Stash our params away. */
6756 htab
->add_stub_section
= add_stub_section
;
6757 htab
->layout_sections_again
= layout_sections_again
;
6758 stubs_always_before_branch
= group_size
< 0;
6760 stub_group_size
= -group_size
;
6762 stub_group_size
= group_size
;
6763 if (stub_group_size
== 1)
6765 /* Default values. */
6766 if (stubs_always_before_branch
)
6768 stub_group_size
= 0x1e00000;
6769 if (htab
->has_14bit_branch
)
6770 stub_group_size
= 0x7800;
6774 stub_group_size
= 0x1c00000;
6775 if (htab
->has_14bit_branch
)
6776 stub_group_size
= 0x7000;
6780 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
6785 unsigned int bfd_indx
;
6787 bfd_boolean stub_changed
;
6789 htab
->stub_iteration
+= 1;
6790 stub_changed
= FALSE
;
6792 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
6794 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
6796 Elf_Internal_Shdr
*symtab_hdr
;
6798 Elf_Internal_Sym
*local_syms
= NULL
;
6800 /* We'll need the symbol table in a second. */
6801 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6802 if (symtab_hdr
->sh_info
== 0)
6805 /* Walk over each section attached to the input bfd. */
6806 for (section
= input_bfd
->sections
;
6808 section
= section
->next
)
6810 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
6812 /* If there aren't any relocs, then there's nothing more
6814 if ((section
->flags
& SEC_RELOC
) == 0
6815 || section
->reloc_count
== 0)
6818 /* If this section is a link-once section that will be
6819 discarded, then don't create any stubs. */
6820 if (section
->output_section
== NULL
6821 || section
->output_section
->owner
!= output_bfd
)
6824 /* Get the relocs. */
6826 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
6828 if (internal_relocs
== NULL
)
6829 goto error_ret_free_local
;
6831 /* Now examine each relocation. */
6832 irela
= internal_relocs
;
6833 irelaend
= irela
+ section
->reloc_count
;
6834 for (; irela
< irelaend
; irela
++)
6836 enum elf_ppc64_reloc_type r_type
;
6837 unsigned int r_indx
;
6838 enum ppc_stub_type stub_type
;
6839 struct ppc_stub_hash_entry
*stub_entry
;
6842 bfd_vma destination
;
6843 struct ppc_link_hash_entry
*hash
;
6844 struct elf_link_hash_entry
*h
;
6845 Elf_Internal_Sym
*sym
;
6847 const asection
*id_sec
;
6849 r_type
= ELF64_R_TYPE (irela
->r_info
);
6850 r_indx
= ELF64_R_SYM (irela
->r_info
);
6852 if (r_type
>= R_PPC64_max
)
6854 bfd_set_error (bfd_error_bad_value
);
6855 goto error_ret_free_internal
;
6858 /* Only look for stubs on branch instructions. */
6859 if (r_type
!= R_PPC64_REL24
6860 && r_type
!= R_PPC64_REL14
6861 && r_type
!= R_PPC64_REL14_BRTAKEN
6862 && r_type
!= R_PPC64_REL14_BRNTAKEN
)
6865 /* Now determine the call target, its name, value,
6868 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
6870 goto error_ret_free_internal
;
6871 hash
= (struct ppc_link_hash_entry
*) h
;
6875 /* It's a local symbol. */
6876 sym_value
= sym
->st_value
;
6877 destination
= (sym_value
+ irela
->r_addend
6878 + sym_sec
->output_offset
6879 + sym_sec
->output_section
->vma
);
6883 /* It's an external symbol. */
6885 if (hash
->elf
.root
.type
== bfd_link_hash_defined
6886 || hash
->elf
.root
.type
== bfd_link_hash_defweak
)
6888 sym_value
= hash
->elf
.root
.u
.def
.value
;
6889 if (sym_sec
->output_section
!= NULL
)
6890 destination
= (sym_value
+ irela
->r_addend
6891 + sym_sec
->output_offset
6892 + sym_sec
->output_section
->vma
);
6894 else if (hash
->elf
.root
.type
== bfd_link_hash_undefweak
)
6896 else if (hash
->elf
.root
.type
== bfd_link_hash_undefined
)
6900 bfd_set_error (bfd_error_bad_value
);
6901 goto error_ret_free_internal
;
6905 /* Determine what (if any) linker stub is needed. */
6906 stub_type
= ppc_type_of_stub (section
, irela
, &hash
,
6909 if (stub_type
!= ppc_stub_plt_call
)
6911 /* Check whether we need a TOC adjusting stub.
6912 Since the linker pastes together pieces from
6913 different object files when creating the
6914 _init and _fini functions, it may be that a
6915 call to what looks like a local sym is in
6916 fact a call needing a TOC adjustment. */
6918 && sym_sec
->output_section
!= NULL
6919 && (htab
->stub_group
[sym_sec
->id
].toc_off
6920 != htab
->stub_group
[section
->id
].toc_off
)
6921 && sym_sec
->has_gp_reloc
6922 && section
->has_gp_reloc
)
6923 stub_type
= ppc_stub_long_branch_r2off
;
6926 if (stub_type
== ppc_stub_none
)
6929 /* __tls_get_addr calls might be eliminated. */
6930 if (stub_type
!= ppc_stub_plt_call
6932 && &hash
->elf
== htab
->tls_get_addr
6933 && section
->has_tls_reloc
6934 && irela
!= internal_relocs
)
6939 if (!get_tls_mask (&tls_mask
, NULL
, &local_syms
,
6940 irela
- 1, input_bfd
))
6941 goto error_ret_free_internal
;
6946 /* Support for grouping stub sections. */
6947 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
6949 /* Get the name of this stub. */
6950 stub_name
= ppc_stub_name (id_sec
, sym_sec
, hash
, irela
);
6952 goto error_ret_free_internal
;
6954 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
6955 stub_name
, FALSE
, FALSE
);
6956 if (stub_entry
!= NULL
)
6958 /* The proper stub has already been created. */
6963 stub_entry
= ppc_add_stub (stub_name
, section
, htab
);
6964 if (stub_entry
== NULL
)
6967 error_ret_free_internal
:
6968 if (elf_section_data (section
)->relocs
== NULL
)
6969 free (internal_relocs
);
6970 error_ret_free_local
:
6971 if (local_syms
!= NULL
6972 && (symtab_hdr
->contents
6973 != (unsigned char *) local_syms
))
6978 stub_entry
->stub_type
= stub_type
;
6979 stub_entry
->target_value
= sym_value
;
6980 stub_entry
->target_section
= sym_sec
;
6981 stub_entry
->h
= hash
;
6982 stub_entry
->addend
= irela
->r_addend
;
6983 stub_changed
= TRUE
;
6986 /* We're done with the internal relocs, free them. */
6987 if (elf_section_data (section
)->relocs
!= internal_relocs
)
6988 free (internal_relocs
);
6991 if (local_syms
!= NULL
6992 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
6994 if (!info
->keep_memory
)
6997 symtab_hdr
->contents
= (unsigned char *) local_syms
;
7004 /* OK, we've added some stubs. Find out the new size of the
7006 for (stub_sec
= htab
->stub_bfd
->sections
;
7008 stub_sec
= stub_sec
->next
)
7009 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0)
7011 stub_sec
->_raw_size
= 0;
7012 stub_sec
->_cooked_size
= 0;
7014 htab
->brlt
->_raw_size
= 0;
7015 htab
->brlt
->_cooked_size
= 0;
7018 htab
->relbrlt
->_raw_size
= 0;
7019 htab
->relbrlt
->_cooked_size
= 0;
7022 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_size_one_stub
, info
);
7024 /* Ask the linker to do its stuff. */
7025 (*htab
->layout_sections_again
) ();
7028 /* It would be nice to strip .branch_lt from the output if the
7029 section is empty, but it's too late. If we strip sections here,
7030 the dynamic symbol table is corrupted since the section symbol
7031 for the stripped section isn't written. */
7036 /* Called after we have determined section placement. If sections
7037 move, we'll be called again. Provide a value for TOCstart. */
7040 ppc64_elf_toc (bfd
*obfd
)
7045 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
7046 order. The TOC starts where the first of these sections starts. */
7047 s
= bfd_get_section_by_name (obfd
, ".got");
7049 s
= bfd_get_section_by_name (obfd
, ".toc");
7051 s
= bfd_get_section_by_name (obfd
, ".tocbss");
7053 s
= bfd_get_section_by_name (obfd
, ".plt");
7056 /* This may happen for
7057 o references to TOC base (SYM@toc / TOC[tc0]) without a
7060 o --gc-sections and empty TOC sections
7062 FIXME: Warn user? */
7064 /* Look for a likely section. We probably won't even be
7066 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
7067 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
| SEC_READONLY
))
7068 == (SEC_ALLOC
| SEC_SMALL_DATA
))
7071 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
7072 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
))
7073 == (SEC_ALLOC
| SEC_SMALL_DATA
))
7076 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
7077 if ((s
->flags
& (SEC_ALLOC
| SEC_READONLY
)) == SEC_ALLOC
)
7080 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
7081 if ((s
->flags
& SEC_ALLOC
) == SEC_ALLOC
)
7087 TOCstart
= s
->output_section
->vma
+ s
->output_offset
;
7092 /* Build all the stubs associated with the current output file.
7093 The stubs are kept in a hash table attached to the main linker
7094 hash table. This function is called via gldelf64ppc_finish. */
7097 ppc64_elf_build_stubs (bfd_boolean emit_stub_syms
,
7098 struct bfd_link_info
*info
,
7101 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
7104 int stub_sec_count
= 0;
7106 htab
->emit_stub_syms
= emit_stub_syms
;
7107 for (stub_sec
= htab
->stub_bfd
->sections
;
7109 stub_sec
= stub_sec
->next
)
7110 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0)
7114 /* Allocate memory to hold the linker stubs. */
7115 size
= stub_sec
->_raw_size
;
7118 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, size
);
7119 if (stub_sec
->contents
== NULL
)
7122 stub_sec
->_cooked_size
= 0;
7125 if (htab
->plt
!= NULL
)
7130 /* Build the .glink plt call stub. */
7131 plt0
= (htab
->plt
->output_section
->vma
7132 + htab
->plt
->output_offset
7133 - (htab
->glink
->output_section
->vma
7134 + htab
->glink
->output_offset
7135 + GLINK_CALL_STUB_SIZE
));
7136 if (plt0
+ 0x80008000 > 0xffffffff)
7138 (*_bfd_error_handler
) (_(".glink and .plt too far apart"));
7139 bfd_set_error (bfd_error_bad_value
);
7143 if (htab
->emit_stub_syms
)
7145 struct elf_link_hash_entry
*h
;
7146 h
= elf_link_hash_lookup (&htab
->elf
, "__glink", TRUE
, FALSE
, FALSE
);
7149 if (h
->root
.type
== bfd_link_hash_new
)
7151 h
->root
.type
= bfd_link_hash_defined
;
7152 h
->root
.u
.def
.section
= htab
->glink
;
7153 h
->root
.u
.def
.value
= 0;
7154 h
->elf_link_hash_flags
= (ELF_LINK_HASH_REF_REGULAR
7155 | ELF_LINK_HASH_DEF_REGULAR
7156 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
7157 | ELF_LINK_FORCED_LOCAL
);
7160 p
= htab
->glink
->contents
;
7161 bfd_put_32 (htab
->glink
->owner
, MFCTR_R12
, p
);
7163 bfd_put_32 (htab
->glink
->owner
, SLDI_R11_R0_3
, p
);
7165 bfd_put_32 (htab
->glink
->owner
, ADDIC_R2_R0_32K
, p
);
7167 bfd_put_32 (htab
->glink
->owner
, SUB_R12_R12_R11
, p
);
7169 bfd_put_32 (htab
->glink
->owner
, SRADI_R2_R2_63
, p
);
7171 bfd_put_32 (htab
->glink
->owner
, SLDI_R11_R0_2
, p
);
7173 bfd_put_32 (htab
->glink
->owner
, AND_R2_R2_R11
, p
);
7175 bfd_put_32 (htab
->glink
->owner
, SUB_R12_R12_R11
, p
);
7177 bfd_put_32 (htab
->glink
->owner
, ADD_R12_R12_R2
, p
);
7179 bfd_put_32 (htab
->glink
->owner
, ADDIS_R12_R12
| PPC_HA (plt0
), p
);
7181 bfd_put_32 (htab
->glink
->owner
, LD_R11_0R12
| PPC_LO (plt0
), p
);
7183 bfd_put_32 (htab
->glink
->owner
, ADDI_R12_R12
| PPC_LO (plt0
), p
);
7185 bfd_put_32 (htab
->glink
->owner
, LD_R2_0R12
| 8, p
);
7187 bfd_put_32 (htab
->glink
->owner
, MTCTR_R11
, p
);
7189 bfd_put_32 (htab
->glink
->owner
, LD_R11_0R12
| 16, p
);
7191 bfd_put_32 (htab
->glink
->owner
, BCTR
, p
);
7194 /* Build the .glink lazy link call stubs. */
7196 while (p
< htab
->glink
->contents
+ htab
->glink
->_raw_size
)
7200 bfd_put_32 (htab
->glink
->owner
, LI_R0_0
| indx
, p
);
7205 bfd_put_32 (htab
->glink
->owner
, LIS_R0_0
| PPC_HI (indx
), p
);
7207 bfd_put_32 (htab
->glink
->owner
, ORI_R0_R0_0
| PPC_LO (indx
), p
);
7210 bfd_put_32 (htab
->glink
->owner
,
7211 B_DOT
| ((htab
->glink
->contents
- p
) & 0x3fffffc), p
);
7215 htab
->glink
->_cooked_size
= p
- htab
->glink
->contents
;
7218 if (htab
->brlt
->_raw_size
!= 0)
7220 htab
->brlt
->contents
= bfd_zalloc (htab
->brlt
->owner
,
7221 htab
->brlt
->_raw_size
);
7222 if (htab
->brlt
->contents
== NULL
)
7225 if (info
->shared
&& htab
->relbrlt
->_raw_size
!= 0)
7227 htab
->relbrlt
->contents
= bfd_zalloc (htab
->relbrlt
->owner
,
7228 htab
->relbrlt
->_raw_size
);
7229 if (htab
->relbrlt
->contents
== NULL
)
7233 /* Build the stubs as directed by the stub hash table. */
7234 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_build_one_stub
, info
);
7236 for (stub_sec
= htab
->stub_bfd
->sections
;
7238 stub_sec
= stub_sec
->next
)
7239 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0)
7241 stub_sec_count
+= 1;
7242 if (stub_sec
->_raw_size
!= stub_sec
->_cooked_size
)
7246 if (stub_sec
!= NULL
7247 || htab
->glink
->_raw_size
!= htab
->glink
->_cooked_size
)
7249 htab
->stub_error
= TRUE
;
7250 (*_bfd_error_handler
) (_("stubs don't match calculated size"));
7253 if (htab
->stub_error
)
7258 *stats
= bfd_malloc (500);
7262 sprintf (*stats
, _("linker stubs in %u groups\n"
7265 " long branch %lu\n"
7266 " long toc adj %lu\n"
7269 htab
->stub_count
[ppc_stub_long_branch
- 1],
7270 htab
->stub_count
[ppc_stub_long_branch_r2off
- 1],
7271 htab
->stub_count
[ppc_stub_plt_branch
- 1],
7272 htab
->stub_count
[ppc_stub_plt_branch_r2off
- 1],
7273 htab
->stub_count
[ppc_stub_plt_call
- 1]);
7278 /* The RELOCATE_SECTION function is called by the ELF backend linker
7279 to handle the relocations for a section.
7281 The relocs are always passed as Rela structures; if the section
7282 actually uses Rel structures, the r_addend field will always be
7285 This function is responsible for adjust the section contents as
7286 necessary, and (if using Rela relocs and generating a
7287 relocatable output file) adjusting the reloc addend as
7290 This function does not have to worry about setting the reloc
7291 address or the reloc symbol index.
7293 LOCAL_SYMS is a pointer to the swapped in local symbols.
7295 LOCAL_SECTIONS is an array giving the section in the input file
7296 corresponding to the st_shndx field of each local symbol.
7298 The global hash table entry for the global symbols can be found
7299 via elf_sym_hashes (input_bfd).
7301 When generating relocatable output, this function must handle
7302 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7303 going to be the section symbol corresponding to the output
7304 section, which means that the addend must be adjusted
7308 ppc64_elf_relocate_section (bfd
*output_bfd
,
7309 struct bfd_link_info
*info
,
7311 asection
*input_section
,
7313 Elf_Internal_Rela
*relocs
,
7314 Elf_Internal_Sym
*local_syms
,
7315 asection
**local_sections
)
7317 struct ppc_link_hash_table
*htab
;
7318 Elf_Internal_Shdr
*symtab_hdr
;
7319 struct elf_link_hash_entry
**sym_hashes
;
7320 Elf_Internal_Rela
*rel
;
7321 Elf_Internal_Rela
*relend
;
7322 Elf_Internal_Rela outrel
;
7324 struct got_entry
**local_got_ents
;
7326 bfd_boolean ret
= TRUE
;
7328 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
7329 bfd_boolean is_power4
= FALSE
;
7331 if (info
->relocatable
)
7334 /* Initialize howto table if needed. */
7335 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
7338 htab
= ppc_hash_table (info
);
7339 local_got_ents
= elf_local_got_ents (input_bfd
);
7340 TOCstart
= elf_gp (output_bfd
);
7341 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
7342 sym_hashes
= elf_sym_hashes (input_bfd
);
7343 is_opd
= ppc64_elf_section_data (input_section
)->opd
.adjust
!= NULL
;
7346 relend
= relocs
+ input_section
->reloc_count
;
7347 for (; rel
< relend
; rel
++)
7349 enum elf_ppc64_reloc_type r_type
;
7351 bfd_reloc_status_type r
;
7352 Elf_Internal_Sym
*sym
;
7354 struct elf_link_hash_entry
*h
;
7355 struct elf_link_hash_entry
*fdh
;
7356 const char *sym_name
;
7357 unsigned long r_symndx
, toc_symndx
;
7358 char tls_mask
, tls_gd
, tls_type
;
7361 bfd_boolean unresolved_reloc
;
7363 unsigned long insn
, mask
;
7364 struct ppc_stub_hash_entry
*stub_entry
;
7365 bfd_vma max_br_offset
;
7368 r_type
= ELF64_R_TYPE (rel
->r_info
);
7369 r_symndx
= ELF64_R_SYM (rel
->r_info
);
7371 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
7372 symbol of the previous ADDR64 reloc. The symbol gives us the
7373 proper TOC base to use. */
7374 if (rel
->r_info
== ELF64_R_INFO (0, R_PPC64_TOC
)
7376 && ELF64_R_TYPE (rel
[-1].r_info
) == R_PPC64_ADDR64
7378 r_symndx
= ELF64_R_SYM (rel
[-1].r_info
);
7384 unresolved_reloc
= FALSE
;
7387 if (r_symndx
< symtab_hdr
->sh_info
)
7389 /* It's a local symbol. */
7390 sym
= local_syms
+ r_symndx
;
7391 sec
= local_sections
[r_symndx
];
7392 sym_name
= bfd_elf_local_sym_name (input_bfd
, sym
);
7393 sym_type
= ELF64_ST_TYPE (sym
->st_info
);
7394 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sec
, rel
);
7395 if (elf_section_data (sec
) != NULL
)
7397 long *opd_sym_adjust
;
7399 opd_sym_adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
7400 if (opd_sym_adjust
!= NULL
&& sym
->st_value
% 24 == 0)
7401 relocation
+= opd_sym_adjust
[sym
->st_value
/ 24];
7406 RELOC_FOR_GLOBAL_SYMBOL (h
, sym_hashes
, r_symndx
,
7407 symtab_hdr
, relocation
, sec
,
7408 unresolved_reloc
, info
,
7410 sym_name
= h
->root
.root
.string
;
7414 /* TLS optimizations. Replace instruction sequences and relocs
7415 based on information we collected in tls_optimize. We edit
7416 RELOCS so that --emit-relocs will output something sensible
7417 for the final instruction stream. */
7421 if (IS_PPC64_TLS_RELOC (r_type
))
7424 tls_mask
= ((struct ppc_link_hash_entry
*) h
)->tls_mask
;
7425 else if (local_got_ents
!= NULL
)
7428 lgot_masks
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
7429 tls_mask
= lgot_masks
[r_symndx
];
7431 if (tls_mask
== 0 && r_type
== R_PPC64_TLS
)
7433 /* Check for toc tls entries. */
7436 if (!get_tls_mask (&toc_tls
, &toc_symndx
, &local_syms
,
7441 tls_mask
= *toc_tls
;
7445 /* Check that tls relocs are used with tls syms, and non-tls
7446 relocs are used with non-tls syms. */
7448 && r_type
!= R_PPC64_NONE
7450 || h
->root
.type
== bfd_link_hash_defined
7451 || h
->root
.type
== bfd_link_hash_defweak
)
7452 && IS_PPC64_TLS_RELOC (r_type
) != (sym_type
== STT_TLS
))
7454 if (r_type
== R_PPC64_TLS
&& tls_mask
!= 0)
7455 /* R_PPC64_TLS is OK against a symbol in the TOC. */
7458 (*_bfd_error_handler
)
7459 (sym_type
== STT_TLS
7460 ? _("%s(%s+0x%lx): %s used with TLS symbol %s")
7461 : _("%s(%s+0x%lx): %s used with non-TLS symbol %s"),
7462 bfd_archive_filename (input_bfd
),
7463 input_section
->name
,
7464 (long) rel
->r_offset
,
7465 ppc64_elf_howto_table
[r_type
]->name
,
7469 /* Ensure reloc mapping code below stays sane. */
7470 if (R_PPC64_TOC16_LO_DS
!= R_PPC64_TOC16_DS
+ 1
7471 || R_PPC64_TOC16_LO
!= R_PPC64_TOC16
+ 1
7472 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TLSGD16
& 3)
7473 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TLSGD16_LO
& 3)
7474 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TLSGD16_HI
& 3)
7475 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TLSGD16_HA
& 3)
7476 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TPREL16_DS
& 3)
7477 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TPREL16_LO_DS
& 3)
7478 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TPREL16_HI
& 3)
7479 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TPREL16_HA
& 3))
7488 case R_PPC64_TOC16_LO
:
7489 case R_PPC64_TOC16_DS
:
7490 case R_PPC64_TOC16_LO_DS
:
7492 /* Check for toc tls entries. */
7496 retval
= get_tls_mask (&toc_tls
, &toc_symndx
, &local_syms
,
7503 tls_mask
= *toc_tls
;
7504 if (r_type
== R_PPC64_TOC16_DS
7505 || r_type
== R_PPC64_TOC16_LO_DS
)
7508 && (tls_mask
& (TLS_DTPREL
| TLS_TPREL
)) == 0)
7513 /* If we found a GD reloc pair, then we might be
7514 doing a GD->IE transition. */
7517 tls_gd
= TLS_TPRELGD
;
7518 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7519 goto tls_get_addr_check
;
7521 else if (retval
== 3)
7523 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7524 goto tls_get_addr_check
;
7531 case R_PPC64_GOT_TPREL16_DS
:
7532 case R_PPC64_GOT_TPREL16_LO_DS
:
7534 && (tls_mask
& TLS_TPREL
) == 0)
7537 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
- 2);
7539 insn
|= 0x3c0d0000; /* addis 0,13,0 */
7540 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
- 2);
7541 r_type
= R_PPC64_TPREL16_HA
;
7542 if (toc_symndx
!= 0)
7544 rel
->r_info
= ELF64_R_INFO (toc_symndx
, r_type
);
7545 /* We changed the symbol. Start over in order to
7546 get h, sym, sec etc. right. */
7551 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7557 && (tls_mask
& TLS_TPREL
) == 0)
7560 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
7561 if ((insn
& ((0x3f << 26) | (31 << 11)))
7562 == ((31 << 26) | (13 << 11)))
7563 rtra
= insn
& ((1 << 26) - (1 << 16));
7564 else if ((insn
& ((0x3f << 26) | (31 << 16)))
7565 == ((31 << 26) | (13 << 16)))
7566 rtra
= (insn
& (31 << 21)) | ((insn
& (31 << 11)) << 5);
7569 if ((insn
& ((1 << 11) - (1 << 1))) == 266 << 1)
7572 else if ((insn
& (31 << 1)) == 23 << 1
7573 && ((insn
& (31 << 6)) < 14 << 6
7574 || ((insn
& (31 << 6)) >= 16 << 6
7575 && (insn
& (31 << 6)) < 24 << 6)))
7576 /* load and store indexed -> dform. */
7577 insn
= (32 | ((insn
>> 6) & 31)) << 26;
7578 else if ((insn
& (31 << 1)) == 21 << 1
7579 && (insn
& (0x1a << 6)) == 0)
7580 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7581 insn
= (((58 | ((insn
>> 6) & 4)) << 26)
7582 | ((insn
>> 6) & 1));
7583 else if ((insn
& (31 << 1)) == 21 << 1
7584 && (insn
& ((1 << 11) - (1 << 1))) == 341 << 1)
7586 insn
= (58 << 26) | 2;
7590 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
7591 /* Was PPC64_TLS which sits on insn boundary, now
7592 PPC64_TPREL16_LO which is at insn+2. */
7594 r_type
= R_PPC64_TPREL16_LO
;
7595 if (toc_symndx
!= 0)
7597 rel
->r_info
= ELF64_R_INFO (toc_symndx
, r_type
);
7598 /* We changed the symbol. Start over in order to
7599 get h, sym, sec etc. right. */
7604 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7608 case R_PPC64_GOT_TLSGD16_HI
:
7609 case R_PPC64_GOT_TLSGD16_HA
:
7610 tls_gd
= TLS_TPRELGD
;
7611 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7615 case R_PPC64_GOT_TLSLD16_HI
:
7616 case R_PPC64_GOT_TLSLD16_HA
:
7617 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7620 if ((tls_mask
& tls_gd
) != 0)
7621 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7622 + R_PPC64_GOT_TPREL16_DS
);
7625 bfd_put_32 (output_bfd
, NOP
, contents
+ rel
->r_offset
);
7627 r_type
= R_PPC64_NONE
;
7629 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7633 case R_PPC64_GOT_TLSGD16
:
7634 case R_PPC64_GOT_TLSGD16_LO
:
7635 tls_gd
= TLS_TPRELGD
;
7636 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7637 goto tls_get_addr_check
;
7640 case R_PPC64_GOT_TLSLD16
:
7641 case R_PPC64_GOT_TLSLD16_LO
:
7642 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7645 if (rel
+ 1 < relend
)
7647 enum elf_ppc64_reloc_type r_type2
;
7648 unsigned long r_symndx2
;
7649 struct elf_link_hash_entry
*h2
;
7650 bfd_vma insn1
, insn2
, insn3
;
7653 /* The next instruction should be a call to
7654 __tls_get_addr. Peek at the reloc to be sure. */
7655 r_type2
= ELF64_R_TYPE (rel
[1].r_info
);
7656 r_symndx2
= ELF64_R_SYM (rel
[1].r_info
);
7657 if (r_symndx2
< symtab_hdr
->sh_info
7658 || (r_type2
!= R_PPC64_REL14
7659 && r_type2
!= R_PPC64_REL14_BRTAKEN
7660 && r_type2
!= R_PPC64_REL14_BRNTAKEN
7661 && r_type2
!= R_PPC64_REL24
))
7664 h2
= sym_hashes
[r_symndx2
- symtab_hdr
->sh_info
];
7665 while (h2
->root
.type
== bfd_link_hash_indirect
7666 || h2
->root
.type
== bfd_link_hash_warning
)
7667 h2
= (struct elf_link_hash_entry
*) h2
->root
.u
.i
.link
;
7668 if (h2
== NULL
|| h2
!= htab
->tls_get_addr
)
7671 /* OK, it checks out. Replace the call. */
7672 offset
= rel
[1].r_offset
;
7673 insn1
= bfd_get_32 (output_bfd
,
7674 contents
+ rel
->r_offset
- 2);
7675 insn3
= bfd_get_32 (output_bfd
,
7676 contents
+ offset
+ 4);
7677 if ((tls_mask
& tls_gd
) != 0)
7680 insn1
&= (1 << 26) - (1 << 2);
7681 insn1
|= 58 << 26; /* ld */
7682 insn2
= 0x7c636a14; /* add 3,3,13 */
7683 rel
[1].r_info
= ELF64_R_INFO (r_symndx2
, R_PPC64_NONE
);
7684 if ((tls_mask
& TLS_EXPLICIT
) == 0)
7685 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7686 + R_PPC64_GOT_TPREL16_DS
);
7688 r_type
+= R_PPC64_TOC16_DS
- R_PPC64_TOC16
;
7689 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7694 insn1
= 0x3c6d0000; /* addis 3,13,0 */
7695 insn2
= 0x38630000; /* addi 3,3,0 */
7698 /* Was an LD reloc. */
7700 rel
->r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
7701 rel
[1].r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
7703 else if (toc_symndx
!= 0)
7704 r_symndx
= toc_symndx
;
7705 r_type
= R_PPC64_TPREL16_HA
;
7706 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7707 rel
[1].r_info
= ELF64_R_INFO (r_symndx
,
7708 R_PPC64_TPREL16_LO
);
7709 rel
[1].r_offset
+= 2;
7712 || insn3
== CROR_151515
|| insn3
== CROR_313131
)
7716 rel
[1].r_offset
+= 4;
7718 bfd_put_32 (output_bfd
, insn1
, contents
+ rel
->r_offset
- 2);
7719 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
7720 bfd_put_32 (output_bfd
, insn3
, contents
+ offset
+ 4);
7721 if (tls_gd
== 0 || toc_symndx
!= 0)
7723 /* We changed the symbol. Start over in order
7724 to get h, sym, sec etc. right. */
7732 case R_PPC64_DTPMOD64
:
7733 if (rel
+ 1 < relend
7734 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
7735 && rel
[1].r_offset
== rel
->r_offset
+ 8)
7737 if ((tls_mask
& TLS_GD
) == 0)
7739 rel
[1].r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_NONE
);
7740 if ((tls_mask
& TLS_TPRELGD
) != 0)
7741 r_type
= R_PPC64_TPREL64
;
7744 bfd_put_64 (output_bfd
, 1, contents
+ rel
->r_offset
);
7745 r_type
= R_PPC64_NONE
;
7747 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7752 if ((tls_mask
& TLS_LD
) == 0)
7754 bfd_put_64 (output_bfd
, 1, contents
+ rel
->r_offset
);
7755 r_type
= R_PPC64_NONE
;
7756 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7761 case R_PPC64_TPREL64
:
7762 if ((tls_mask
& TLS_TPREL
) == 0)
7764 r_type
= R_PPC64_NONE
;
7765 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7770 /* Handle other relocations that tweak non-addend part of insn. */
7777 /* Branch taken prediction relocations. */
7778 case R_PPC64_ADDR14_BRTAKEN
:
7779 case R_PPC64_REL14_BRTAKEN
:
7780 insn
= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7783 /* Branch not taken prediction relocations. */
7784 case R_PPC64_ADDR14_BRNTAKEN
:
7785 case R_PPC64_REL14_BRNTAKEN
:
7786 insn
|= bfd_get_32 (output_bfd
,
7787 contents
+ rel
->r_offset
) & ~(0x01 << 21);
7790 /* Set 'a' bit. This is 0b00010 in BO field for branch
7791 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7792 for branch on CTR insns (BO == 1a00t or 1a01t). */
7793 if ((insn
& (0x14 << 21)) == (0x04 << 21))
7795 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
7802 from
= (rel
->r_offset
7803 + input_section
->output_offset
7804 + input_section
->output_section
->vma
);
7806 /* Invert 'y' bit if not the default. */
7807 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
7811 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
7815 /* Calls to functions with a different TOC, such as calls to
7816 shared objects, need to alter the TOC pointer. This is
7817 done using a linkage stub. A REL24 branching to these
7818 linkage stubs needs to be followed by a nop, as the nop
7819 will be replaced with an instruction to restore the TOC
7822 && (fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
) != NULL
7823 && fdh
->plt
.plist
!= NULL
)
7824 || ((fdh
= h
, sec
) != NULL
7825 && sec
->output_section
!= NULL
7826 && (htab
->stub_group
[sec
->id
].toc_off
7827 != htab
->stub_group
[input_section
->id
].toc_off
)))
7828 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, fdh
,
7830 && (stub_entry
->stub_type
== ppc_stub_plt_call
7831 || stub_entry
->stub_type
== ppc_stub_plt_branch_r2off
7832 || stub_entry
->stub_type
== ppc_stub_long_branch_r2off
))
7834 bfd_boolean can_plt_call
= 0;
7836 if (rel
->r_offset
+ 8 <= input_section
->_cooked_size
)
7838 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
7840 || insn
== CROR_151515
|| insn
== CROR_313131
)
7842 bfd_put_32 (input_bfd
, LD_R2_40R1
,
7843 contents
+ rel
->r_offset
+ 4);
7850 if (stub_entry
->stub_type
== ppc_stub_plt_call
)
7852 /* If this is a plain branch rather than a branch
7853 and link, don't require a nop. */
7854 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
7855 if ((insn
& 1) == 0)
7859 && strcmp (h
->root
.root
.string
,
7860 ".__libc_start_main") == 0)
7862 /* Allow crt1 branch to go via a toc adjusting stub. */
7867 if (strcmp (input_section
->output_section
->name
,
7869 || strcmp (input_section
->output_section
->name
,
7871 (*_bfd_error_handler
)
7872 (_("%s(%s+0x%lx): automatic multiple TOCs "
7873 "not supported using your crt files; "
7874 "recompile with -mminimal-toc or upgrade gcc"),
7875 bfd_archive_filename (input_bfd
),
7876 input_section
->name
,
7877 (long) rel
->r_offset
);
7879 (*_bfd_error_handler
)
7880 (_("%s(%s+0x%lx): sibling call optimization to `%s' "
7881 "does not allow automatic multiple TOCs; "
7882 "recompile with -mminimal-toc or "
7883 "-fno-optimize-sibling-calls, "
7884 "or make `%s' extern"),
7885 bfd_archive_filename (input_bfd
),
7886 input_section
->name
,
7887 (long) rel
->r_offset
,
7890 bfd_set_error (bfd_error_bad_value
);
7897 relocation
= (stub_entry
->stub_offset
7898 + stub_entry
->stub_sec
->output_offset
7899 + stub_entry
->stub_sec
->output_section
->vma
);
7900 if (stub_entry
->stub_type
== ppc_stub_plt_call
)
7901 unresolved_reloc
= FALSE
;
7906 && h
->root
.type
== bfd_link_hash_undefweak
7908 && rel
->r_addend
== 0)
7910 /* Tweak calls to undefined weak functions to point at a
7911 blr. We can thus call a weak function without first
7912 checking whether the function is defined. We have a
7913 blr at the end of .sfpr. */
7914 BFD_ASSERT (htab
->sfpr
->_raw_size
!= 0);
7915 relocation
= (htab
->sfpr
->_raw_size
- 4
7916 + htab
->sfpr
->output_offset
7917 + htab
->sfpr
->output_section
->vma
);
7918 from
= (rel
->r_offset
7919 + input_section
->output_offset
7920 + input_section
->output_section
->vma
);
7922 /* But let's not be silly about it. If the blr isn't in
7923 reach, just go to the next instruction. */
7924 if (relocation
- from
+ (1 << 25) >= (1 << 26)
7925 || htab
->sfpr
->_raw_size
== 0)
7926 relocation
= from
+ 4;
7933 addend
= rel
->r_addend
;
7937 (*_bfd_error_handler
)
7938 (_("%s: unknown relocation type %d for symbol %s"),
7939 bfd_archive_filename (input_bfd
), (int) r_type
, sym_name
);
7941 bfd_set_error (bfd_error_bad_value
);
7947 case R_PPC64_GNU_VTINHERIT
:
7948 case R_PPC64_GNU_VTENTRY
:
7951 /* GOT16 relocations. Like an ADDR16 using the symbol's
7952 address in the GOT as relocation value instead of the
7953 symbol's value itself. Also, create a GOT entry for the
7954 symbol and put the symbol value there. */
7955 case R_PPC64_GOT_TLSGD16
:
7956 case R_PPC64_GOT_TLSGD16_LO
:
7957 case R_PPC64_GOT_TLSGD16_HI
:
7958 case R_PPC64_GOT_TLSGD16_HA
:
7959 tls_type
= TLS_TLS
| TLS_GD
;
7962 case R_PPC64_GOT_TLSLD16
:
7963 case R_PPC64_GOT_TLSLD16_LO
:
7964 case R_PPC64_GOT_TLSLD16_HI
:
7965 case R_PPC64_GOT_TLSLD16_HA
:
7966 tls_type
= TLS_TLS
| TLS_LD
;
7969 case R_PPC64_GOT_TPREL16_DS
:
7970 case R_PPC64_GOT_TPREL16_LO_DS
:
7971 case R_PPC64_GOT_TPREL16_HI
:
7972 case R_PPC64_GOT_TPREL16_HA
:
7973 tls_type
= TLS_TLS
| TLS_TPREL
;
7976 case R_PPC64_GOT_DTPREL16_DS
:
7977 case R_PPC64_GOT_DTPREL16_LO_DS
:
7978 case R_PPC64_GOT_DTPREL16_HI
:
7979 case R_PPC64_GOT_DTPREL16_HA
:
7980 tls_type
= TLS_TLS
| TLS_DTPREL
;
7984 case R_PPC64_GOT16_LO
:
7985 case R_PPC64_GOT16_HI
:
7986 case R_PPC64_GOT16_HA
:
7987 case R_PPC64_GOT16_DS
:
7988 case R_PPC64_GOT16_LO_DS
:
7991 /* Relocation is to the entry for this symbol in the global
7996 unsigned long indx
= 0;
7998 if (tls_type
== (TLS_TLS
| TLS_LD
)
8000 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)))
8001 offp
= &ppc64_tlsld_got (input_bfd
)->offset
;
8004 struct got_entry
*ent
;
8008 bfd_boolean dyn
= htab
->elf
.dynamic_sections_created
;
8009 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
8011 && SYMBOL_REFERENCES_LOCAL (info
, h
)))
8012 /* This is actually a static link, or it is a
8013 -Bsymbolic link and the symbol is defined
8014 locally, or the symbol was forced to be local
8015 because of a version file. */
8020 unresolved_reloc
= FALSE
;
8026 if (local_got_ents
== NULL
)
8028 ent
= local_got_ents
[r_symndx
];
8031 for (; ent
!= NULL
; ent
= ent
->next
)
8032 if (ent
->addend
== rel
->r_addend
8033 && ent
->owner
== input_bfd
8034 && ent
->tls_type
== tls_type
)
8038 offp
= &ent
->got
.offset
;
8041 got
= ppc64_elf_tdata (input_bfd
)->got
;
8045 /* The offset must always be a multiple of 8. We use the
8046 least significant bit to record whether we have already
8047 processed this entry. */
8053 /* Generate relocs for the dynamic linker, except in
8054 the case of TLSLD where we'll use one entry per
8056 asection
*relgot
= ppc64_elf_tdata (input_bfd
)->relgot
;
8059 if ((info
->shared
|| indx
!= 0)
8061 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
8062 || h
->root
.type
!= bfd_link_hash_undefweak
))
8064 outrel
.r_offset
= (got
->output_section
->vma
8065 + got
->output_offset
8067 outrel
.r_addend
= rel
->r_addend
;
8068 if (tls_type
& (TLS_LD
| TLS_GD
))
8070 outrel
.r_addend
= 0;
8071 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPMOD64
);
8072 if (tls_type
== (TLS_TLS
| TLS_GD
))
8074 loc
= relgot
->contents
;
8075 loc
+= (relgot
->reloc_count
++
8076 * sizeof (Elf64_External_Rela
));
8077 bfd_elf64_swap_reloca_out (output_bfd
,
8079 outrel
.r_offset
+= 8;
8080 outrel
.r_addend
= rel
->r_addend
;
8082 = ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
8085 else if (tls_type
== (TLS_TLS
| TLS_DTPREL
))
8086 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
8087 else if (tls_type
== (TLS_TLS
| TLS_TPREL
))
8088 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_TPREL64
);
8091 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_RELATIVE
);
8093 /* Write the .got section contents for the sake
8095 loc
= got
->contents
+ off
;
8096 bfd_put_64 (output_bfd
, outrel
.r_addend
+ relocation
,
8100 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_GLOB_DAT
);
8102 if (indx
== 0 && tls_type
!= (TLS_TLS
| TLS_LD
))
8104 outrel
.r_addend
+= relocation
;
8105 if (tls_type
& (TLS_GD
| TLS_DTPREL
| TLS_TPREL
))
8106 outrel
.r_addend
-= htab
->elf
.tls_sec
->vma
;
8108 loc
= relgot
->contents
;
8109 loc
+= (relgot
->reloc_count
++
8110 * sizeof (Elf64_External_Rela
));
8111 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
8114 /* Init the .got section contents here if we're not
8115 emitting a reloc. */
8118 relocation
+= rel
->r_addend
;
8119 if (tls_type
== (TLS_TLS
| TLS_LD
))
8121 else if (tls_type
!= 0)
8123 relocation
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8124 if (tls_type
== (TLS_TLS
| TLS_TPREL
))
8125 relocation
+= DTP_OFFSET
- TP_OFFSET
;
8127 if (tls_type
== (TLS_TLS
| TLS_GD
))
8129 bfd_put_64 (output_bfd
, relocation
,
8130 got
->contents
+ off
+ 8);
8135 bfd_put_64 (output_bfd
, relocation
,
8136 got
->contents
+ off
);
8140 if (off
>= (bfd_vma
) -2)
8143 relocation
= got
->output_offset
+ off
;
8145 /* TOC base (r2) is TOC start plus 0x8000. */
8146 addend
= -TOC_BASE_OFF
;
8150 case R_PPC64_PLT16_HA
:
8151 case R_PPC64_PLT16_HI
:
8152 case R_PPC64_PLT16_LO
:
8155 /* Relocation is to the entry for this symbol in the
8156 procedure linkage table. */
8158 /* Resolve a PLT reloc against a local symbol directly,
8159 without using the procedure linkage table. */
8163 /* It's possible that we didn't make a PLT entry for this
8164 symbol. This happens when statically linking PIC code,
8165 or when using -Bsymbolic. Go find a match if there is a
8167 if (htab
->plt
!= NULL
)
8169 struct plt_entry
*ent
;
8170 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
8171 if (ent
->addend
== rel
->r_addend
8172 && ent
->plt
.offset
!= (bfd_vma
) -1)
8174 relocation
= (htab
->plt
->output_section
->vma
8175 + htab
->plt
->output_offset
8177 unresolved_reloc
= FALSE
;
8183 /* Relocation value is TOC base. */
8184 relocation
= TOCstart
;
8186 relocation
+= htab
->stub_group
[input_section
->id
].toc_off
;
8187 else if (sec
!= NULL
&& !unresolved_reloc
)
8188 relocation
+= htab
->stub_group
[sec
->id
].toc_off
;
8190 unresolved_reloc
= TRUE
;
8193 /* TOC16 relocs. We want the offset relative to the TOC base,
8194 which is the address of the start of the TOC plus 0x8000.
8195 The TOC consists of sections .got, .toc, .tocbss, and .plt,
8198 case R_PPC64_TOC16_LO
:
8199 case R_PPC64_TOC16_HI
:
8200 case R_PPC64_TOC16_DS
:
8201 case R_PPC64_TOC16_LO_DS
:
8202 case R_PPC64_TOC16_HA
:
8203 addend
-= TOCstart
+ htab
->stub_group
[input_section
->id
].toc_off
;
8206 /* Relocate against the beginning of the section. */
8207 case R_PPC64_SECTOFF
:
8208 case R_PPC64_SECTOFF_LO
:
8209 case R_PPC64_SECTOFF_HI
:
8210 case R_PPC64_SECTOFF_DS
:
8211 case R_PPC64_SECTOFF_LO_DS
:
8212 case R_PPC64_SECTOFF_HA
:
8214 addend
-= sec
->output_section
->vma
;
8218 case R_PPC64_REL14_BRNTAKEN
:
8219 case R_PPC64_REL14_BRTAKEN
:
8223 case R_PPC64_TPREL16
:
8224 case R_PPC64_TPREL16_LO
:
8225 case R_PPC64_TPREL16_HI
:
8226 case R_PPC64_TPREL16_HA
:
8227 case R_PPC64_TPREL16_DS
:
8228 case R_PPC64_TPREL16_LO_DS
:
8229 case R_PPC64_TPREL16_HIGHER
:
8230 case R_PPC64_TPREL16_HIGHERA
:
8231 case R_PPC64_TPREL16_HIGHEST
:
8232 case R_PPC64_TPREL16_HIGHESTA
:
8233 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
8235 /* The TPREL16 relocs shouldn't really be used in shared
8236 libs as they will result in DT_TEXTREL being set, but
8237 support them anyway. */
8241 case R_PPC64_DTPREL16
:
8242 case R_PPC64_DTPREL16_LO
:
8243 case R_PPC64_DTPREL16_HI
:
8244 case R_PPC64_DTPREL16_HA
:
8245 case R_PPC64_DTPREL16_DS
:
8246 case R_PPC64_DTPREL16_LO_DS
:
8247 case R_PPC64_DTPREL16_HIGHER
:
8248 case R_PPC64_DTPREL16_HIGHERA
:
8249 case R_PPC64_DTPREL16_HIGHEST
:
8250 case R_PPC64_DTPREL16_HIGHESTA
:
8251 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8254 case R_PPC64_DTPMOD64
:
8259 case R_PPC64_TPREL64
:
8260 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
8263 case R_PPC64_DTPREL64
:
8264 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8267 /* Relocations that may need to be propagated if this is a
8272 case R_PPC64_ADDR14
:
8273 case R_PPC64_ADDR14_BRNTAKEN
:
8274 case R_PPC64_ADDR14_BRTAKEN
:
8275 case R_PPC64_ADDR16
:
8276 case R_PPC64_ADDR16_DS
:
8277 case R_PPC64_ADDR16_HA
:
8278 case R_PPC64_ADDR16_HI
:
8279 case R_PPC64_ADDR16_HIGHER
:
8280 case R_PPC64_ADDR16_HIGHERA
:
8281 case R_PPC64_ADDR16_HIGHEST
:
8282 case R_PPC64_ADDR16_HIGHESTA
:
8283 case R_PPC64_ADDR16_LO
:
8284 case R_PPC64_ADDR16_LO_DS
:
8285 case R_PPC64_ADDR24
:
8286 case R_PPC64_ADDR32
:
8287 case R_PPC64_ADDR64
:
8288 case R_PPC64_UADDR16
:
8289 case R_PPC64_UADDR32
:
8290 case R_PPC64_UADDR64
:
8291 /* r_symndx will be zero only for relocs against symbols
8292 from removed linkonce sections, or sections discarded by
8300 if ((input_section
->flags
& SEC_ALLOC
) == 0)
8303 if (NO_OPD_RELOCS
&& is_opd
)
8308 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
8309 || h
->root
.type
!= bfd_link_hash_undefweak
)
8310 && (MUST_BE_DYN_RELOC (r_type
)
8311 || !SYMBOL_CALLS_LOCAL (info
, h
)))
8312 || (ELIMINATE_COPY_RELOCS
8316 && (h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
8317 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
8318 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0))
8320 Elf_Internal_Rela outrel
;
8321 bfd_boolean skip
, relocate
;
8326 /* When generating a dynamic object, these relocations
8327 are copied into the output file to be resolved at run
8333 out_off
= _bfd_elf_section_offset (output_bfd
, info
,
8334 input_section
, rel
->r_offset
);
8335 if (out_off
== (bfd_vma
) -1)
8337 else if (out_off
== (bfd_vma
) -2)
8338 skip
= TRUE
, relocate
= TRUE
;
8339 out_off
+= (input_section
->output_section
->vma
8340 + input_section
->output_offset
);
8341 outrel
.r_offset
= out_off
;
8342 outrel
.r_addend
= rel
->r_addend
;
8344 /* Optimize unaligned reloc use. */
8345 if ((r_type
== R_PPC64_ADDR64
&& (out_off
& 7) != 0)
8346 || (r_type
== R_PPC64_UADDR64
&& (out_off
& 7) == 0))
8347 r_type
^= R_PPC64_ADDR64
^ R_PPC64_UADDR64
;
8348 else if ((r_type
== R_PPC64_ADDR32
&& (out_off
& 3) != 0)
8349 || (r_type
== R_PPC64_UADDR32
&& (out_off
& 3) == 0))
8350 r_type
^= R_PPC64_ADDR32
^ R_PPC64_UADDR32
;
8351 else if ((r_type
== R_PPC64_ADDR16
&& (out_off
& 1) != 0)
8352 || (r_type
== R_PPC64_UADDR16
&& (out_off
& 1) == 0))
8353 r_type
^= R_PPC64_ADDR16
^ R_PPC64_UADDR16
;
8356 memset (&outrel
, 0, sizeof outrel
);
8357 else if (!SYMBOL_REFERENCES_LOCAL (info
, h
)
8359 && r_type
!= R_PPC64_TOC
)
8360 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, r_type
);
8363 /* This symbol is local, or marked to become local,
8364 or this is an opd section reloc which must point
8365 at a local function. */
8366 outrel
.r_addend
+= relocation
;
8367 if (r_type
== R_PPC64_ADDR64
|| r_type
== R_PPC64_TOC
)
8369 if (is_opd
&& h
!= NULL
)
8371 /* Lie about opd entries. This case occurs
8372 when building shared libraries and we
8373 reference a function in another shared
8374 lib. The same thing happens for a weak
8375 definition in an application that's
8376 overridden by a strong definition in a
8377 shared lib. (I believe this is a generic
8378 bug in binutils handling of weak syms.)
8379 In these cases we won't use the opd
8380 entry in this lib. */
8381 unresolved_reloc
= FALSE
;
8383 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
8385 /* We need to relocate .opd contents for ld.so.
8386 Prelink also wants simple and consistent rules
8387 for relocs. This make all RELATIVE relocs have
8388 *r_offset equal to r_addend. */
8395 if (bfd_is_abs_section (sec
))
8397 else if (sec
== NULL
|| sec
->owner
== NULL
)
8399 bfd_set_error (bfd_error_bad_value
);
8406 osec
= sec
->output_section
;
8407 indx
= elf_section_data (osec
)->dynindx
;
8409 /* We are turning this relocation into one
8410 against a section symbol, so subtract out
8411 the output section's address but not the
8412 offset of the input section in the output
8414 outrel
.r_addend
-= osec
->vma
;
8417 outrel
.r_info
= ELF64_R_INFO (indx
, r_type
);
8421 sreloc
= elf_section_data (input_section
)->sreloc
;
8425 loc
= sreloc
->contents
;
8426 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
8427 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
8429 /* If this reloc is against an external symbol, it will
8430 be computed at runtime, so there's no need to do
8431 anything now. However, for the sake of prelink ensure
8432 that the section contents are a known value. */
8435 unresolved_reloc
= FALSE
;
8436 /* The value chosen here is quite arbitrary as ld.so
8437 ignores section contents except for the special
8438 case of .opd where the contents might be accessed
8439 before relocation. Choose zero, as that won't
8440 cause reloc overflow. */
8443 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
8444 to improve backward compatibility with older
8446 if (r_type
== R_PPC64_ADDR64
)
8447 addend
= outrel
.r_addend
;
8448 /* Adjust pc_relative relocs to have zero in *r_offset. */
8449 else if (ppc64_elf_howto_table
[r_type
]->pc_relative
)
8450 addend
= (input_section
->output_section
->vma
8451 + input_section
->output_offset
8458 case R_PPC64_GLOB_DAT
:
8459 case R_PPC64_JMP_SLOT
:
8460 case R_PPC64_RELATIVE
:
8461 /* We shouldn't ever see these dynamic relocs in relocatable
8465 case R_PPC64_PLTGOT16
:
8466 case R_PPC64_PLTGOT16_DS
:
8467 case R_PPC64_PLTGOT16_HA
:
8468 case R_PPC64_PLTGOT16_HI
:
8469 case R_PPC64_PLTGOT16_LO
:
8470 case R_PPC64_PLTGOT16_LO_DS
:
8471 case R_PPC64_PLTREL32
:
8472 case R_PPC64_PLTREL64
:
8473 /* These ones haven't been implemented yet. */
8475 (*_bfd_error_handler
)
8476 (_("%s: relocation %s is not supported for symbol %s."),
8477 bfd_archive_filename (input_bfd
),
8478 ppc64_elf_howto_table
[r_type
]->name
, sym_name
);
8480 bfd_set_error (bfd_error_invalid_operation
);
8485 /* Do any further special processing. */
8491 case R_PPC64_ADDR16_HA
:
8492 case R_PPC64_ADDR16_HIGHERA
:
8493 case R_PPC64_ADDR16_HIGHESTA
:
8494 case R_PPC64_GOT16_HA
:
8495 case R_PPC64_PLTGOT16_HA
:
8496 case R_PPC64_PLT16_HA
:
8497 case R_PPC64_TOC16_HA
:
8498 case R_PPC64_SECTOFF_HA
:
8499 case R_PPC64_TPREL16_HA
:
8500 case R_PPC64_DTPREL16_HA
:
8501 case R_PPC64_GOT_TLSGD16_HA
:
8502 case R_PPC64_GOT_TLSLD16_HA
:
8503 case R_PPC64_GOT_TPREL16_HA
:
8504 case R_PPC64_GOT_DTPREL16_HA
:
8505 case R_PPC64_TPREL16_HIGHER
:
8506 case R_PPC64_TPREL16_HIGHERA
:
8507 case R_PPC64_TPREL16_HIGHEST
:
8508 case R_PPC64_TPREL16_HIGHESTA
:
8509 case R_PPC64_DTPREL16_HIGHER
:
8510 case R_PPC64_DTPREL16_HIGHERA
:
8511 case R_PPC64_DTPREL16_HIGHEST
:
8512 case R_PPC64_DTPREL16_HIGHESTA
:
8513 /* It's just possible that this symbol is a weak symbol
8514 that's not actually defined anywhere. In that case,
8515 'sec' would be NULL, and we should leave the symbol
8516 alone (it will be set to zero elsewhere in the link). */
8518 /* Add 0x10000 if sign bit in 0:15 is set.
8519 Bits 0:15 are not used. */
8523 case R_PPC64_ADDR16_DS
:
8524 case R_PPC64_ADDR16_LO_DS
:
8525 case R_PPC64_GOT16_DS
:
8526 case R_PPC64_GOT16_LO_DS
:
8527 case R_PPC64_PLT16_LO_DS
:
8528 case R_PPC64_SECTOFF_DS
:
8529 case R_PPC64_SECTOFF_LO_DS
:
8530 case R_PPC64_TOC16_DS
:
8531 case R_PPC64_TOC16_LO_DS
:
8532 case R_PPC64_PLTGOT16_DS
:
8533 case R_PPC64_PLTGOT16_LO_DS
:
8534 case R_PPC64_GOT_TPREL16_DS
:
8535 case R_PPC64_GOT_TPREL16_LO_DS
:
8536 case R_PPC64_GOT_DTPREL16_DS
:
8537 case R_PPC64_GOT_DTPREL16_LO_DS
:
8538 case R_PPC64_TPREL16_DS
:
8539 case R_PPC64_TPREL16_LO_DS
:
8540 case R_PPC64_DTPREL16_DS
:
8541 case R_PPC64_DTPREL16_LO_DS
:
8542 insn
= bfd_get_32 (input_bfd
, contents
+ (rel
->r_offset
& ~3));
8544 /* If this reloc is against an lq insn, then the value must be
8545 a multiple of 16. This is somewhat of a hack, but the
8546 "correct" way to do this by defining _DQ forms of all the
8547 _DS relocs bloats all reloc switches in this file. It
8548 doesn't seem to make much sense to use any of these relocs
8549 in data, so testing the insn should be safe. */
8550 if ((insn
& (0x3f << 26)) == (56u << 26))
8552 if (((relocation
+ addend
) & mask
) != 0)
8554 (*_bfd_error_handler
)
8555 (_("%s: error: relocation %s not a multiple of %d"),
8556 bfd_archive_filename (input_bfd
),
8557 ppc64_elf_howto_table
[r_type
]->name
,
8559 bfd_set_error (bfd_error_bad_value
);
8566 case R_PPC64_REL14_BRNTAKEN
:
8567 case R_PPC64_REL14_BRTAKEN
:
8568 max_br_offset
= 1 << 15;
8572 max_br_offset
= 1 << 25;
8575 /* If the branch is out of reach or the TOC register needs
8576 adjusting, then redirect the call to the local stub for
8578 from
= (rel
->r_offset
8579 + input_section
->output_offset
8580 + input_section
->output_section
->vma
);
8581 if ((relocation
+ addend
- from
+ max_br_offset
>= 2 * max_br_offset
8583 && sec
->output_section
!= NULL
8584 && sec
->id
<= htab
->top_id
8585 && (htab
->stub_group
[sec
->id
].toc_off
8586 != htab
->stub_group
[input_section
->id
].toc_off
)))
8587 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, h
,
8588 rel
, htab
)) != NULL
)
8590 /* Munge up the value and addend so that we call the stub
8591 rather than the procedure directly. */
8592 relocation
= (stub_entry
->stub_offset
8593 + stub_entry
->stub_sec
->output_offset
8594 + stub_entry
->stub_sec
->output_section
->vma
);
8600 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8601 because such sections are not SEC_ALLOC and thus ld.so will
8602 not process them. */
8603 if (unresolved_reloc
8604 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
8605 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0))
8607 (*_bfd_error_handler
)
8608 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
8609 bfd_archive_filename (input_bfd
),
8610 bfd_get_section_name (input_bfd
, input_section
),
8611 (long) rel
->r_offset
,
8612 ppc64_elf_howto_table
[(int) r_type
]->name
,
8613 h
->root
.root
.string
);
8617 r
= _bfd_final_link_relocate (ppc64_elf_howto_table
[(int) r_type
],
8625 if (r
!= bfd_reloc_ok
)
8627 if (sym_name
== NULL
)
8628 sym_name
= "(null)";
8629 if (r
== bfd_reloc_overflow
)
8634 && h
->root
.type
== bfd_link_hash_undefweak
8635 && ppc64_elf_howto_table
[r_type
]->pc_relative
)
8637 /* Assume this is a call protected by other code that
8638 detects the symbol is undefined. If this is the case,
8639 we can safely ignore the overflow. If not, the
8640 program is hosed anyway, and a little warning isn't
8646 if (!((*info
->callbacks
->reloc_overflow
)
8647 (info
, sym_name
, ppc64_elf_howto_table
[r_type
]->name
,
8648 rel
->r_addend
, input_bfd
, input_section
, rel
->r_offset
)))
8653 (*_bfd_error_handler
)
8654 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
8655 bfd_archive_filename (input_bfd
),
8656 bfd_get_section_name (input_bfd
, input_section
),
8657 (long) rel
->r_offset
,
8658 ppc64_elf_howto_table
[r_type
]->name
,
8669 /* Finish up dynamic symbol handling. We set the contents of various
8670 dynamic sections here. */
8673 ppc64_elf_finish_dynamic_symbol (bfd
*output_bfd
,
8674 struct bfd_link_info
*info
,
8675 struct elf_link_hash_entry
*h
,
8676 Elf_Internal_Sym
*sym
)
8678 struct ppc_link_hash_table
*htab
;
8681 htab
= ppc_hash_table (info
);
8682 dynobj
= htab
->elf
.dynobj
;
8684 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
8686 struct plt_entry
*ent
;
8687 Elf_Internal_Rela rela
;
8690 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
8691 if (ent
->plt
.offset
!= (bfd_vma
) -1)
8693 /* This symbol has an entry in the procedure linkage
8694 table. Set it up. */
8696 if (htab
->plt
== NULL
8697 || htab
->relplt
== NULL
8698 || htab
->glink
== NULL
)
8701 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8702 fill in the PLT entry. */
8703 rela
.r_offset
= (htab
->plt
->output_section
->vma
8704 + htab
->plt
->output_offset
8706 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_JMP_SLOT
);
8707 rela
.r_addend
= ent
->addend
;
8709 loc
= htab
->relplt
->contents
;
8710 loc
+= ((ent
->plt
.offset
- PLT_INITIAL_ENTRY_SIZE
) / PLT_ENTRY_SIZE
8711 * sizeof (Elf64_External_Rela
));
8712 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8716 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_COPY
) != 0)
8718 Elf_Internal_Rela rela
;
8721 /* This symbol needs a copy reloc. Set it up. */
8723 if (h
->dynindx
== -1
8724 || (h
->root
.type
!= bfd_link_hash_defined
8725 && h
->root
.type
!= bfd_link_hash_defweak
)
8726 || htab
->relbss
== NULL
)
8729 rela
.r_offset
= (h
->root
.u
.def
.value
8730 + h
->root
.u
.def
.section
->output_section
->vma
8731 + h
->root
.u
.def
.section
->output_offset
);
8732 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_COPY
);
8734 loc
= htab
->relbss
->contents
;
8735 loc
+= htab
->relbss
->reloc_count
++ * sizeof (Elf64_External_Rela
);
8736 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8739 /* Mark some specially defined symbols as absolute. */
8740 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0)
8741 sym
->st_shndx
= SHN_ABS
;
8746 /* Used to decide how to sort relocs in an optimal manner for the
8747 dynamic linker, before writing them out. */
8749 static enum elf_reloc_type_class
8750 ppc64_elf_reloc_type_class (const Elf_Internal_Rela
*rela
)
8752 enum elf_ppc64_reloc_type r_type
;
8754 r_type
= ELF64_R_TYPE (rela
->r_info
);
8757 case R_PPC64_RELATIVE
:
8758 return reloc_class_relative
;
8759 case R_PPC64_JMP_SLOT
:
8760 return reloc_class_plt
;
8762 return reloc_class_copy
;
8764 return reloc_class_normal
;
8768 /* Finish up the dynamic sections. */
8771 ppc64_elf_finish_dynamic_sections (bfd
*output_bfd
,
8772 struct bfd_link_info
*info
)
8774 struct ppc_link_hash_table
*htab
;
8778 htab
= ppc_hash_table (info
);
8779 dynobj
= htab
->elf
.dynobj
;
8780 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
8782 if (htab
->elf
.dynamic_sections_created
)
8784 Elf64_External_Dyn
*dyncon
, *dynconend
;
8786 if (sdyn
== NULL
|| htab
->got
== NULL
)
8789 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
8790 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
8791 for (; dyncon
< dynconend
; dyncon
++)
8793 Elf_Internal_Dyn dyn
;
8796 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
8803 case DT_PPC64_GLINK
:
8805 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8806 /* We stupidly defined DT_PPC64_GLINK to be the start
8807 of glink rather than the first entry point, which is
8808 what ld.so needs, and now have a bigger stub to
8809 support automatic multiple TOCs. */
8810 dyn
.d_un
.d_ptr
+= GLINK_CALL_STUB_SIZE
- 32;
8814 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8817 dyn
.d_un
.d_ptr
= s
->vma
;
8820 case DT_PPC64_OPDSZ
:
8821 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8824 dyn
.d_un
.d_val
= s
->_raw_size
;
8829 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8834 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8838 dyn
.d_un
.d_val
= htab
->relplt
->_raw_size
;
8842 /* Don't count procedure linkage table relocs in the
8843 overall reloc count. */
8847 dyn
.d_un
.d_val
-= s
->_raw_size
;
8851 /* We may not be using the standard ELF linker script.
8852 If .rela.plt is the first .rela section, we adjust
8853 DT_RELA to not include it. */
8857 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
8859 dyn
.d_un
.d_ptr
+= s
->_raw_size
;
8863 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
8867 if (htab
->got
!= NULL
&& htab
->got
->_raw_size
!= 0)
8869 /* Fill in the first entry in the global offset table.
8870 We use it to hold the link-time TOCbase. */
8871 bfd_put_64 (output_bfd
,
8872 elf_gp (output_bfd
) + TOC_BASE_OFF
,
8873 htab
->got
->contents
);
8875 /* Set .got entry size. */
8876 elf_section_data (htab
->got
->output_section
)->this_hdr
.sh_entsize
= 8;
8879 if (htab
->plt
!= NULL
&& htab
->plt
->_raw_size
!= 0)
8881 /* Set .plt entry size. */
8882 elf_section_data (htab
->plt
->output_section
)->this_hdr
.sh_entsize
8886 /* We need to handle writing out multiple GOT sections ourselves,
8887 since we didn't add them to DYNOBJ. */
8888 while ((dynobj
= dynobj
->link_next
) != NULL
)
8891 s
= ppc64_elf_tdata (dynobj
)->got
;
8893 && s
->_raw_size
!= 0
8894 && s
->output_section
!= bfd_abs_section_ptr
8895 && !bfd_set_section_contents (output_bfd
, s
->output_section
,
8896 s
->contents
, s
->output_offset
,
8899 s
= ppc64_elf_tdata (dynobj
)->relgot
;
8901 && s
->_raw_size
!= 0
8902 && s
->output_section
!= bfd_abs_section_ptr
8903 && !bfd_set_section_contents (output_bfd
, s
->output_section
,
8904 s
->contents
, s
->output_offset
,
8912 #include "elf64-target.h"