1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
3 2009, 2010 Free Software Foundation, Inc.
4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
6 Largely rewritten by Alan Modra.
8 This file is part of BFD, the Binary File Descriptor library.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License along
21 with this program; if not, write to the Free Software Foundation, Inc.,
22 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
25 /* The 64-bit PowerPC ELF ABI may be found at
26 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
27 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
35 #include "elf/ppc64.h"
36 #include "elf64-ppc.h"
38 static bfd_reloc_status_type ppc64_elf_ha_reloc
39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
40 static bfd_reloc_status_type ppc64_elf_branch_reloc
41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
42 static bfd_reloc_status_type ppc64_elf_brtaken_reloc
43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
44 static bfd_reloc_status_type ppc64_elf_sectoff_reloc
45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
46 static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
48 static bfd_reloc_status_type ppc64_elf_toc_reloc
49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
50 static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
52 static bfd_reloc_status_type ppc64_elf_toc64_reloc
53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
54 static bfd_reloc_status_type ppc64_elf_unhandled_reloc
55 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
56 static bfd_vma opd_entry_value
57 (asection *, bfd_vma, asection **, bfd_vma *);
59 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
60 #define TARGET_LITTLE_NAME "elf64-powerpcle"
61 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
62 #define TARGET_BIG_NAME "elf64-powerpc"
63 #define ELF_ARCH bfd_arch_powerpc
64 #define ELF_MACHINE_CODE EM_PPC64
65 #define ELF_MAXPAGESIZE 0x10000
66 #define ELF_COMMONPAGESIZE 0x1000
67 #define elf_info_to_howto ppc64_elf_info_to_howto
69 #define elf_backend_want_got_sym 0
70 #define elf_backend_want_plt_sym 0
71 #define elf_backend_plt_alignment 3
72 #define elf_backend_plt_not_loaded 1
73 #define elf_backend_got_header_size 8
74 #define elf_backend_can_gc_sections 1
75 #define elf_backend_can_refcount 1
76 #define elf_backend_rela_normal 1
77 #define elf_backend_default_execstack 0
79 #define bfd_elf64_mkobject ppc64_elf_mkobject
80 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
81 #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
82 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
83 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
84 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
85 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
86 #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
88 #define elf_backend_object_p ppc64_elf_object_p
89 #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
90 #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
91 #define elf_backend_write_core_note ppc64_elf_write_core_note
92 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
93 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
94 #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
95 #define elf_backend_check_directives ppc64_elf_process_dot_syms
96 #define elf_backend_as_needed_cleanup ppc64_elf_as_needed_cleanup
97 #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
98 #define elf_backend_check_relocs ppc64_elf_check_relocs
99 #define elf_backend_gc_keep ppc64_elf_gc_keep
100 #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
101 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
102 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
103 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
104 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
105 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
106 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
107 #define elf_backend_init_index_section _bfd_elf_init_2_index_sections
108 #define elf_backend_action_discarded ppc64_elf_action_discarded
109 #define elf_backend_relocate_section ppc64_elf_relocate_section
110 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
111 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
112 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
113 #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
114 #define elf_backend_special_sections ppc64_elf_special_sections
115 #define elf_backend_post_process_headers _bfd_elf_set_osabi
117 /* The name of the dynamic interpreter. This is put in the .interp
119 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
121 /* The size in bytes of an entry in the procedure linkage table. */
122 #define PLT_ENTRY_SIZE 24
124 /* The initial size of the plt reserved for the dynamic linker. */
125 #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
127 /* TOC base pointers offset from start of TOC. */
128 #define TOC_BASE_OFF 0x8000
130 /* Offset of tp and dtp pointers from start of TLS block. */
131 #define TP_OFFSET 0x7000
132 #define DTP_OFFSET 0x8000
134 /* .plt call stub instructions. The normal stub is like this, but
135 sometimes the .plt entry crosses a 64k boundary and we need to
136 insert an addi to adjust r12. */
137 #define PLT_CALL_STUB_SIZE (7*4)
138 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
139 #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
140 #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
141 #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
142 #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
143 /* ld %r11,xxx+16@l(%r12) */
144 #define BCTR 0x4e800420 /* bctr */
147 #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,off@ha */
148 #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,off@l */
149 #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
150 #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
152 #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
153 #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
155 #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
157 /* glink call stub instructions. We enter with the index in R0. */
158 #define GLINK_CALL_STUB_SIZE (16*4)
162 #define MFLR_R12 0x7d8802a6 /* mflr %12 */
163 #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
165 #define MFLR_R11 0x7d6802a6 /* mflr %11 */
166 #define LD_R2_M16R11 0xe84bfff0 /* ld %2,(0b-1b)(%11) */
167 #define MTLR_R12 0x7d8803a6 /* mtlr %12 */
168 #define ADD_R12_R2_R11 0x7d825a14 /* add %12,%2,%11 */
176 #define NOP 0x60000000
178 /* Some other nops. */
179 #define CROR_151515 0x4def7b82
180 #define CROR_313131 0x4ffffb82
182 /* .glink entries for the first 32k functions are two instructions. */
183 #define LI_R0_0 0x38000000 /* li %r0,0 */
184 #define B_DOT 0x48000000 /* b . */
186 /* After that, we need two instructions to load the index, followed by
188 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
189 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
191 /* Instructions used by the save and restore reg functions. */
192 #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
193 #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
194 #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
195 #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
196 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
197 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
198 #define LI_R12_0 0x39800000 /* li %r12,0 */
199 #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
200 #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
201 #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
202 #define BLR 0x4e800020 /* blr */
204 /* Since .opd is an array of descriptors and each entry will end up
205 with identical R_PPC64_RELATIVE relocs, there is really no need to
206 propagate .opd relocs; The dynamic linker should be taught to
207 relocate .opd without reloc entries. */
208 #ifndef NO_OPD_RELOCS
209 #define NO_OPD_RELOCS 0
212 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
214 /* Relocation HOWTO's. */
215 static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
217 static reloc_howto_type ppc64_elf_howto_raw[] = {
218 /* This reloc does nothing. */
219 HOWTO (R_PPC64_NONE, /* type */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
223 FALSE, /* pc_relative */
225 complain_overflow_dont, /* complain_on_overflow */
226 bfd_elf_generic_reloc, /* special_function */
227 "R_PPC64_NONE", /* name */
228 FALSE, /* partial_inplace */
231 FALSE), /* pcrel_offset */
233 /* A standard 32 bit relocation. */
234 HOWTO (R_PPC64_ADDR32, /* type */
236 2, /* 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_ADDR32", /* name */
243 FALSE, /* partial_inplace */
245 0xffffffff, /* dst_mask */
246 FALSE), /* pcrel_offset */
248 /* An absolute 26 bit branch; the lower two bits must be zero.
249 FIXME: we don't check that, we just clear them. */
250 HOWTO (R_PPC64_ADDR24, /* type */
252 2, /* size (0 = byte, 1 = short, 2 = long) */
254 FALSE, /* pc_relative */
256 complain_overflow_bitfield, /* complain_on_overflow */
257 bfd_elf_generic_reloc, /* special_function */
258 "R_PPC64_ADDR24", /* name */
259 FALSE, /* partial_inplace */
261 0x03fffffc, /* dst_mask */
262 FALSE), /* pcrel_offset */
264 /* A standard 16 bit relocation. */
265 HOWTO (R_PPC64_ADDR16, /* type */
267 1, /* size (0 = byte, 1 = short, 2 = long) */
269 FALSE, /* pc_relative */
271 complain_overflow_bitfield, /* complain_on_overflow */
272 bfd_elf_generic_reloc, /* special_function */
273 "R_PPC64_ADDR16", /* name */
274 FALSE, /* partial_inplace */
276 0xffff, /* dst_mask */
277 FALSE), /* pcrel_offset */
279 /* A 16 bit relocation without overflow. */
280 HOWTO (R_PPC64_ADDR16_LO, /* type */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
284 FALSE, /* pc_relative */
286 complain_overflow_dont,/* complain_on_overflow */
287 bfd_elf_generic_reloc, /* special_function */
288 "R_PPC64_ADDR16_LO", /* name */
289 FALSE, /* partial_inplace */
291 0xffff, /* dst_mask */
292 FALSE), /* pcrel_offset */
294 /* Bits 16-31 of an address. */
295 HOWTO (R_PPC64_ADDR16_HI, /* type */
297 1, /* size (0 = byte, 1 = short, 2 = long) */
299 FALSE, /* pc_relative */
301 complain_overflow_dont, /* complain_on_overflow */
302 bfd_elf_generic_reloc, /* special_function */
303 "R_PPC64_ADDR16_HI", /* name */
304 FALSE, /* partial_inplace */
306 0xffff, /* dst_mask */
307 FALSE), /* pcrel_offset */
309 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
310 bits, treated as a signed number, is negative. */
311 HOWTO (R_PPC64_ADDR16_HA, /* type */
313 1, /* size (0 = byte, 1 = short, 2 = long) */
315 FALSE, /* pc_relative */
317 complain_overflow_dont, /* complain_on_overflow */
318 ppc64_elf_ha_reloc, /* special_function */
319 "R_PPC64_ADDR16_HA", /* name */
320 FALSE, /* partial_inplace */
322 0xffff, /* dst_mask */
323 FALSE), /* pcrel_offset */
325 /* An absolute 16 bit branch; the lower two bits must be zero.
326 FIXME: we don't check that, we just clear them. */
327 HOWTO (R_PPC64_ADDR14, /* type */
329 2, /* size (0 = byte, 1 = short, 2 = long) */
331 FALSE, /* pc_relative */
333 complain_overflow_bitfield, /* complain_on_overflow */
334 ppc64_elf_branch_reloc, /* special_function */
335 "R_PPC64_ADDR14", /* name */
336 FALSE, /* partial_inplace */
338 0x0000fffc, /* dst_mask */
339 FALSE), /* pcrel_offset */
341 /* An absolute 16 bit branch, for which bit 10 should be set to
342 indicate that the branch is expected to be taken. The lower two
343 bits must be zero. */
344 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
348 FALSE, /* pc_relative */
350 complain_overflow_bitfield, /* complain_on_overflow */
351 ppc64_elf_brtaken_reloc, /* special_function */
352 "R_PPC64_ADDR14_BRTAKEN",/* name */
353 FALSE, /* partial_inplace */
355 0x0000fffc, /* dst_mask */
356 FALSE), /* pcrel_offset */
358 /* An absolute 16 bit branch, for which bit 10 should be set to
359 indicate that the branch is not expected to be taken. The lower
360 two bits must be zero. */
361 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
365 FALSE, /* pc_relative */
367 complain_overflow_bitfield, /* complain_on_overflow */
368 ppc64_elf_brtaken_reloc, /* special_function */
369 "R_PPC64_ADDR14_BRNTAKEN",/* name */
370 FALSE, /* partial_inplace */
372 0x0000fffc, /* dst_mask */
373 FALSE), /* pcrel_offset */
375 /* A relative 26 bit branch; the lower two bits must be zero. */
376 HOWTO (R_PPC64_REL24, /* type */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
380 TRUE, /* pc_relative */
382 complain_overflow_signed, /* complain_on_overflow */
383 ppc64_elf_branch_reloc, /* special_function */
384 "R_PPC64_REL24", /* name */
385 FALSE, /* partial_inplace */
387 0x03fffffc, /* dst_mask */
388 TRUE), /* pcrel_offset */
390 /* A relative 16 bit branch; the lower two bits must be zero. */
391 HOWTO (R_PPC64_REL14, /* type */
393 2, /* size (0 = byte, 1 = short, 2 = long) */
395 TRUE, /* pc_relative */
397 complain_overflow_signed, /* complain_on_overflow */
398 ppc64_elf_branch_reloc, /* special_function */
399 "R_PPC64_REL14", /* name */
400 FALSE, /* partial_inplace */
402 0x0000fffc, /* dst_mask */
403 TRUE), /* pcrel_offset */
405 /* A relative 16 bit branch. Bit 10 should be set to indicate that
406 the branch is expected to be taken. The lower two bits must be
408 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
410 2, /* size (0 = byte, 1 = short, 2 = long) */
412 TRUE, /* pc_relative */
414 complain_overflow_signed, /* complain_on_overflow */
415 ppc64_elf_brtaken_reloc, /* special_function */
416 "R_PPC64_REL14_BRTAKEN", /* name */
417 FALSE, /* partial_inplace */
419 0x0000fffc, /* dst_mask */
420 TRUE), /* pcrel_offset */
422 /* A relative 16 bit branch. Bit 10 should be set to indicate that
423 the branch is not expected to be taken. The lower two bits must
425 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
427 2, /* size (0 = byte, 1 = short, 2 = long) */
429 TRUE, /* pc_relative */
431 complain_overflow_signed, /* complain_on_overflow */
432 ppc64_elf_brtaken_reloc, /* special_function */
433 "R_PPC64_REL14_BRNTAKEN",/* name */
434 FALSE, /* partial_inplace */
436 0x0000fffc, /* dst_mask */
437 TRUE), /* pcrel_offset */
439 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
441 HOWTO (R_PPC64_GOT16, /* type */
443 1, /* size (0 = byte, 1 = short, 2 = long) */
445 FALSE, /* pc_relative */
447 complain_overflow_signed, /* complain_on_overflow */
448 ppc64_elf_unhandled_reloc, /* special_function */
449 "R_PPC64_GOT16", /* name */
450 FALSE, /* partial_inplace */
452 0xffff, /* dst_mask */
453 FALSE), /* pcrel_offset */
455 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
457 HOWTO (R_PPC64_GOT16_LO, /* type */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
461 FALSE, /* pc_relative */
463 complain_overflow_dont, /* complain_on_overflow */
464 ppc64_elf_unhandled_reloc, /* special_function */
465 "R_PPC64_GOT16_LO", /* name */
466 FALSE, /* partial_inplace */
468 0xffff, /* dst_mask */
469 FALSE), /* pcrel_offset */
471 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
473 HOWTO (R_PPC64_GOT16_HI, /* type */
475 1, /* size (0 = byte, 1 = short, 2 = long) */
477 FALSE, /* pc_relative */
479 complain_overflow_dont,/* complain_on_overflow */
480 ppc64_elf_unhandled_reloc, /* special_function */
481 "R_PPC64_GOT16_HI", /* name */
482 FALSE, /* partial_inplace */
484 0xffff, /* dst_mask */
485 FALSE), /* pcrel_offset */
487 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
489 HOWTO (R_PPC64_GOT16_HA, /* type */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
493 FALSE, /* pc_relative */
495 complain_overflow_dont,/* complain_on_overflow */
496 ppc64_elf_unhandled_reloc, /* special_function */
497 "R_PPC64_GOT16_HA", /* name */
498 FALSE, /* partial_inplace */
500 0xffff, /* dst_mask */
501 FALSE), /* pcrel_offset */
503 /* This is used only by the dynamic linker. The symbol should exist
504 both in the object being run and in some shared library. The
505 dynamic linker copies the data addressed by the symbol from the
506 shared library into the object, because the object being
507 run has to have the data at some particular address. */
508 HOWTO (R_PPC64_COPY, /* type */
510 0, /* this one is variable size */
512 FALSE, /* pc_relative */
514 complain_overflow_dont, /* complain_on_overflow */
515 ppc64_elf_unhandled_reloc, /* special_function */
516 "R_PPC64_COPY", /* name */
517 FALSE, /* partial_inplace */
520 FALSE), /* pcrel_offset */
522 /* Like R_PPC64_ADDR64, but used when setting global offset table
524 HOWTO (R_PPC64_GLOB_DAT, /* type */
526 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
528 FALSE, /* pc_relative */
530 complain_overflow_dont, /* complain_on_overflow */
531 ppc64_elf_unhandled_reloc, /* special_function */
532 "R_PPC64_GLOB_DAT", /* name */
533 FALSE, /* partial_inplace */
535 ONES (64), /* dst_mask */
536 FALSE), /* pcrel_offset */
538 /* Created by the link editor. Marks a procedure linkage table
539 entry for a symbol. */
540 HOWTO (R_PPC64_JMP_SLOT, /* type */
542 0, /* size (0 = byte, 1 = short, 2 = long) */
544 FALSE, /* pc_relative */
546 complain_overflow_dont, /* complain_on_overflow */
547 ppc64_elf_unhandled_reloc, /* special_function */
548 "R_PPC64_JMP_SLOT", /* name */
549 FALSE, /* partial_inplace */
552 FALSE), /* pcrel_offset */
554 /* Used only by the dynamic linker. When the object is run, this
555 doubleword64 is set to the load address of the object, plus the
557 HOWTO (R_PPC64_RELATIVE, /* type */
559 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
561 FALSE, /* pc_relative */
563 complain_overflow_dont, /* complain_on_overflow */
564 bfd_elf_generic_reloc, /* special_function */
565 "R_PPC64_RELATIVE", /* name */
566 FALSE, /* partial_inplace */
568 ONES (64), /* dst_mask */
569 FALSE), /* pcrel_offset */
571 /* Like R_PPC64_ADDR32, but may be unaligned. */
572 HOWTO (R_PPC64_UADDR32, /* type */
574 2, /* size (0 = byte, 1 = short, 2 = long) */
576 FALSE, /* pc_relative */
578 complain_overflow_bitfield, /* complain_on_overflow */
579 bfd_elf_generic_reloc, /* special_function */
580 "R_PPC64_UADDR32", /* name */
581 FALSE, /* partial_inplace */
583 0xffffffff, /* dst_mask */
584 FALSE), /* pcrel_offset */
586 /* Like R_PPC64_ADDR16, but may be unaligned. */
587 HOWTO (R_PPC64_UADDR16, /* type */
589 1, /* size (0 = byte, 1 = short, 2 = long) */
591 FALSE, /* pc_relative */
593 complain_overflow_bitfield, /* complain_on_overflow */
594 bfd_elf_generic_reloc, /* special_function */
595 "R_PPC64_UADDR16", /* name */
596 FALSE, /* partial_inplace */
598 0xffff, /* dst_mask */
599 FALSE), /* pcrel_offset */
601 /* 32-bit PC relative. */
602 HOWTO (R_PPC64_REL32, /* type */
604 2, /* size (0 = byte, 1 = short, 2 = long) */
606 TRUE, /* pc_relative */
608 /* FIXME: Verify. Was complain_overflow_bitfield. */
609 complain_overflow_signed, /* complain_on_overflow */
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC64_REL32", /* name */
612 FALSE, /* partial_inplace */
614 0xffffffff, /* dst_mask */
615 TRUE), /* pcrel_offset */
617 /* 32-bit relocation to the symbol's procedure linkage table. */
618 HOWTO (R_PPC64_PLT32, /* type */
620 2, /* size (0 = byte, 1 = short, 2 = long) */
622 FALSE, /* pc_relative */
624 complain_overflow_bitfield, /* complain_on_overflow */
625 ppc64_elf_unhandled_reloc, /* special_function */
626 "R_PPC64_PLT32", /* name */
627 FALSE, /* partial_inplace */
629 0xffffffff, /* dst_mask */
630 FALSE), /* pcrel_offset */
632 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
633 FIXME: R_PPC64_PLTREL32 not supported. */
634 HOWTO (R_PPC64_PLTREL32, /* type */
636 2, /* size (0 = byte, 1 = short, 2 = long) */
638 TRUE, /* pc_relative */
640 complain_overflow_signed, /* complain_on_overflow */
641 bfd_elf_generic_reloc, /* special_function */
642 "R_PPC64_PLTREL32", /* name */
643 FALSE, /* partial_inplace */
645 0xffffffff, /* dst_mask */
646 TRUE), /* pcrel_offset */
648 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
650 HOWTO (R_PPC64_PLT16_LO, /* type */
652 1, /* size (0 = byte, 1 = short, 2 = long) */
654 FALSE, /* pc_relative */
656 complain_overflow_dont, /* complain_on_overflow */
657 ppc64_elf_unhandled_reloc, /* special_function */
658 "R_PPC64_PLT16_LO", /* name */
659 FALSE, /* partial_inplace */
661 0xffff, /* dst_mask */
662 FALSE), /* pcrel_offset */
664 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
666 HOWTO (R_PPC64_PLT16_HI, /* type */
668 1, /* size (0 = byte, 1 = short, 2 = long) */
670 FALSE, /* pc_relative */
672 complain_overflow_dont, /* complain_on_overflow */
673 ppc64_elf_unhandled_reloc, /* special_function */
674 "R_PPC64_PLT16_HI", /* name */
675 FALSE, /* partial_inplace */
677 0xffff, /* dst_mask */
678 FALSE), /* pcrel_offset */
680 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
682 HOWTO (R_PPC64_PLT16_HA, /* type */
684 1, /* size (0 = byte, 1 = short, 2 = long) */
686 FALSE, /* pc_relative */
688 complain_overflow_dont, /* complain_on_overflow */
689 ppc64_elf_unhandled_reloc, /* special_function */
690 "R_PPC64_PLT16_HA", /* name */
691 FALSE, /* partial_inplace */
693 0xffff, /* dst_mask */
694 FALSE), /* pcrel_offset */
696 /* 16-bit section relative relocation. */
697 HOWTO (R_PPC64_SECTOFF, /* type */
699 1, /* size (0 = byte, 1 = short, 2 = long) */
701 FALSE, /* pc_relative */
703 complain_overflow_bitfield, /* complain_on_overflow */
704 ppc64_elf_sectoff_reloc, /* special_function */
705 "R_PPC64_SECTOFF", /* name */
706 FALSE, /* partial_inplace */
708 0xffff, /* dst_mask */
709 FALSE), /* pcrel_offset */
711 /* Like R_PPC64_SECTOFF, but no overflow warning. */
712 HOWTO (R_PPC64_SECTOFF_LO, /* type */
714 1, /* size (0 = byte, 1 = short, 2 = long) */
716 FALSE, /* pc_relative */
718 complain_overflow_dont, /* complain_on_overflow */
719 ppc64_elf_sectoff_reloc, /* special_function */
720 "R_PPC64_SECTOFF_LO", /* name */
721 FALSE, /* partial_inplace */
723 0xffff, /* dst_mask */
724 FALSE), /* pcrel_offset */
726 /* 16-bit upper half section relative relocation. */
727 HOWTO (R_PPC64_SECTOFF_HI, /* type */
729 1, /* size (0 = byte, 1 = short, 2 = long) */
731 FALSE, /* pc_relative */
733 complain_overflow_dont, /* complain_on_overflow */
734 ppc64_elf_sectoff_reloc, /* special_function */
735 "R_PPC64_SECTOFF_HI", /* name */
736 FALSE, /* partial_inplace */
738 0xffff, /* dst_mask */
739 FALSE), /* pcrel_offset */
741 /* 16-bit upper half adjusted section relative relocation. */
742 HOWTO (R_PPC64_SECTOFF_HA, /* type */
744 1, /* size (0 = byte, 1 = short, 2 = long) */
746 FALSE, /* pc_relative */
748 complain_overflow_dont, /* complain_on_overflow */
749 ppc64_elf_sectoff_ha_reloc, /* special_function */
750 "R_PPC64_SECTOFF_HA", /* name */
751 FALSE, /* partial_inplace */
753 0xffff, /* dst_mask */
754 FALSE), /* pcrel_offset */
756 /* Like R_PPC64_REL24 without touching the two least significant bits. */
757 HOWTO (R_PPC64_REL30, /* type */
759 2, /* size (0 = byte, 1 = short, 2 = long) */
761 TRUE, /* pc_relative */
763 complain_overflow_dont, /* complain_on_overflow */
764 bfd_elf_generic_reloc, /* special_function */
765 "R_PPC64_REL30", /* name */
766 FALSE, /* partial_inplace */
768 0xfffffffc, /* dst_mask */
769 TRUE), /* pcrel_offset */
771 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
773 /* A standard 64-bit relocation. */
774 HOWTO (R_PPC64_ADDR64, /* type */
776 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
778 FALSE, /* pc_relative */
780 complain_overflow_dont, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_PPC64_ADDR64", /* name */
783 FALSE, /* partial_inplace */
785 ONES (64), /* dst_mask */
786 FALSE), /* pcrel_offset */
788 /* The bits 32-47 of an address. */
789 HOWTO (R_PPC64_ADDR16_HIGHER, /* 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_HIGHER", /* name */
798 FALSE, /* partial_inplace */
800 0xffff, /* dst_mask */
801 FALSE), /* pcrel_offset */
803 /* The bits 32-47 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_HIGHERA, /* 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_HIGHERA", /* name */
814 FALSE, /* partial_inplace */
816 0xffff, /* dst_mask */
817 FALSE), /* pcrel_offset */
819 /* The bits 48-63 of an address. */
820 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
822 1, /* size (0 = byte, 1 = short, 2 = long) */
824 FALSE, /* pc_relative */
826 complain_overflow_dont, /* complain_on_overflow */
827 bfd_elf_generic_reloc, /* special_function */
828 "R_PPC64_ADDR16_HIGHEST", /* name */
829 FALSE, /* partial_inplace */
831 0xffff, /* dst_mask */
832 FALSE), /* pcrel_offset */
834 /* The bits 48-63 of an address, plus 1 if the contents of the low
835 16 bits, treated as a signed number, is negative. */
836 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
838 1, /* size (0 = byte, 1 = short, 2 = long) */
840 FALSE, /* pc_relative */
842 complain_overflow_dont, /* complain_on_overflow */
843 ppc64_elf_ha_reloc, /* special_function */
844 "R_PPC64_ADDR16_HIGHESTA", /* name */
845 FALSE, /* partial_inplace */
847 0xffff, /* dst_mask */
848 FALSE), /* pcrel_offset */
850 /* Like ADDR64, but may be unaligned. */
851 HOWTO (R_PPC64_UADDR64, /* type */
853 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
855 FALSE, /* pc_relative */
857 complain_overflow_dont, /* complain_on_overflow */
858 bfd_elf_generic_reloc, /* special_function */
859 "R_PPC64_UADDR64", /* name */
860 FALSE, /* partial_inplace */
862 ONES (64), /* dst_mask */
863 FALSE), /* pcrel_offset */
865 /* 64-bit relative relocation. */
866 HOWTO (R_PPC64_REL64, /* type */
868 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
870 TRUE, /* pc_relative */
872 complain_overflow_dont, /* complain_on_overflow */
873 bfd_elf_generic_reloc, /* special_function */
874 "R_PPC64_REL64", /* name */
875 FALSE, /* partial_inplace */
877 ONES (64), /* dst_mask */
878 TRUE), /* pcrel_offset */
880 /* 64-bit relocation to the symbol's procedure linkage table. */
881 HOWTO (R_PPC64_PLT64, /* type */
883 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
885 FALSE, /* pc_relative */
887 complain_overflow_dont, /* complain_on_overflow */
888 ppc64_elf_unhandled_reloc, /* special_function */
889 "R_PPC64_PLT64", /* name */
890 FALSE, /* partial_inplace */
892 ONES (64), /* dst_mask */
893 FALSE), /* pcrel_offset */
895 /* 64-bit PC relative relocation to the symbol's procedure linkage
897 /* FIXME: R_PPC64_PLTREL64 not supported. */
898 HOWTO (R_PPC64_PLTREL64, /* type */
900 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
902 TRUE, /* pc_relative */
904 complain_overflow_dont, /* complain_on_overflow */
905 ppc64_elf_unhandled_reloc, /* special_function */
906 "R_PPC64_PLTREL64", /* name */
907 FALSE, /* partial_inplace */
909 ONES (64), /* dst_mask */
910 TRUE), /* pcrel_offset */
912 /* 16 bit TOC-relative relocation. */
914 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
915 HOWTO (R_PPC64_TOC16, /* type */
917 1, /* size (0 = byte, 1 = short, 2 = long) */
919 FALSE, /* pc_relative */
921 complain_overflow_signed, /* complain_on_overflow */
922 ppc64_elf_toc_reloc, /* special_function */
923 "R_PPC64_TOC16", /* name */
924 FALSE, /* partial_inplace */
926 0xffff, /* dst_mask */
927 FALSE), /* pcrel_offset */
929 /* 16 bit TOC-relative relocation without overflow. */
931 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
932 HOWTO (R_PPC64_TOC16_LO, /* type */
934 1, /* size (0 = byte, 1 = short, 2 = long) */
936 FALSE, /* pc_relative */
938 complain_overflow_dont, /* complain_on_overflow */
939 ppc64_elf_toc_reloc, /* special_function */
940 "R_PPC64_TOC16_LO", /* name */
941 FALSE, /* partial_inplace */
943 0xffff, /* dst_mask */
944 FALSE), /* pcrel_offset */
946 /* 16 bit TOC-relative relocation, high 16 bits. */
948 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
949 HOWTO (R_PPC64_TOC16_HI, /* type */
951 1, /* size (0 = byte, 1 = short, 2 = long) */
953 FALSE, /* pc_relative */
955 complain_overflow_dont, /* complain_on_overflow */
956 ppc64_elf_toc_reloc, /* special_function */
957 "R_PPC64_TOC16_HI", /* name */
958 FALSE, /* partial_inplace */
960 0xffff, /* dst_mask */
961 FALSE), /* pcrel_offset */
963 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
964 contents of the low 16 bits, treated as a signed number, is
967 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
968 HOWTO (R_PPC64_TOC16_HA, /* type */
970 1, /* size (0 = byte, 1 = short, 2 = long) */
972 FALSE, /* pc_relative */
974 complain_overflow_dont, /* complain_on_overflow */
975 ppc64_elf_toc_ha_reloc, /* special_function */
976 "R_PPC64_TOC16_HA", /* name */
977 FALSE, /* partial_inplace */
979 0xffff, /* dst_mask */
980 FALSE), /* pcrel_offset */
982 /* 64-bit relocation; insert value of TOC base (.TOC.). */
984 /* R_PPC64_TOC 51 doubleword64 .TOC. */
985 HOWTO (R_PPC64_TOC, /* type */
987 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
989 FALSE, /* pc_relative */
991 complain_overflow_bitfield, /* complain_on_overflow */
992 ppc64_elf_toc64_reloc, /* special_function */
993 "R_PPC64_TOC", /* name */
994 FALSE, /* partial_inplace */
996 ONES (64), /* dst_mask */
997 FALSE), /* pcrel_offset */
999 /* Like R_PPC64_GOT16, but also informs the link editor that the
1000 value to relocate may (!) refer to a PLT entry which the link
1001 editor (a) may replace with the symbol value. If the link editor
1002 is unable to fully resolve the symbol, it may (b) create a PLT
1003 entry and store the address to the new PLT entry in the GOT.
1004 This permits lazy resolution of function symbols at run time.
1005 The link editor may also skip all of this and just (c) emit a
1006 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1007 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1008 HOWTO (R_PPC64_PLTGOT16, /* type */
1010 1, /* size (0 = byte, 1 = short, 2 = long) */
1012 FALSE, /* pc_relative */
1014 complain_overflow_signed, /* complain_on_overflow */
1015 ppc64_elf_unhandled_reloc, /* special_function */
1016 "R_PPC64_PLTGOT16", /* name */
1017 FALSE, /* partial_inplace */
1019 0xffff, /* dst_mask */
1020 FALSE), /* pcrel_offset */
1022 /* Like R_PPC64_PLTGOT16, but without overflow. */
1023 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1024 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1026 1, /* size (0 = byte, 1 = short, 2 = long) */
1028 FALSE, /* pc_relative */
1030 complain_overflow_dont, /* complain_on_overflow */
1031 ppc64_elf_unhandled_reloc, /* special_function */
1032 "R_PPC64_PLTGOT16_LO", /* name */
1033 FALSE, /* partial_inplace */
1035 0xffff, /* dst_mask */
1036 FALSE), /* pcrel_offset */
1038 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1039 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1040 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1041 16, /* rightshift */
1042 1, /* size (0 = byte, 1 = short, 2 = long) */
1044 FALSE, /* pc_relative */
1046 complain_overflow_dont, /* complain_on_overflow */
1047 ppc64_elf_unhandled_reloc, /* special_function */
1048 "R_PPC64_PLTGOT16_HI", /* name */
1049 FALSE, /* partial_inplace */
1051 0xffff, /* dst_mask */
1052 FALSE), /* pcrel_offset */
1054 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1055 1 if the contents of the low 16 bits, treated as a signed number,
1057 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1058 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1059 16, /* rightshift */
1060 1, /* size (0 = byte, 1 = short, 2 = long) */
1062 FALSE, /* pc_relative */
1064 complain_overflow_dont,/* complain_on_overflow */
1065 ppc64_elf_unhandled_reloc, /* special_function */
1066 "R_PPC64_PLTGOT16_HA", /* name */
1067 FALSE, /* partial_inplace */
1069 0xffff, /* dst_mask */
1070 FALSE), /* pcrel_offset */
1072 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1073 HOWTO (R_PPC64_ADDR16_DS, /* type */
1075 1, /* size (0 = byte, 1 = short, 2 = long) */
1077 FALSE, /* pc_relative */
1079 complain_overflow_bitfield, /* complain_on_overflow */
1080 bfd_elf_generic_reloc, /* special_function */
1081 "R_PPC64_ADDR16_DS", /* name */
1082 FALSE, /* partial_inplace */
1084 0xfffc, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1087 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1088 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1090 1, /* size (0 = byte, 1 = short, 2 = long) */
1092 FALSE, /* pc_relative */
1094 complain_overflow_dont,/* complain_on_overflow */
1095 bfd_elf_generic_reloc, /* special_function */
1096 "R_PPC64_ADDR16_LO_DS",/* name */
1097 FALSE, /* partial_inplace */
1099 0xfffc, /* dst_mask */
1100 FALSE), /* pcrel_offset */
1102 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1103 HOWTO (R_PPC64_GOT16_DS, /* type */
1105 1, /* size (0 = byte, 1 = short, 2 = long) */
1107 FALSE, /* pc_relative */
1109 complain_overflow_signed, /* complain_on_overflow */
1110 ppc64_elf_unhandled_reloc, /* special_function */
1111 "R_PPC64_GOT16_DS", /* name */
1112 FALSE, /* partial_inplace */
1114 0xfffc, /* dst_mask */
1115 FALSE), /* pcrel_offset */
1117 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1118 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1120 1, /* size (0 = byte, 1 = short, 2 = long) */
1122 FALSE, /* pc_relative */
1124 complain_overflow_dont, /* complain_on_overflow */
1125 ppc64_elf_unhandled_reloc, /* special_function */
1126 "R_PPC64_GOT16_LO_DS", /* name */
1127 FALSE, /* partial_inplace */
1129 0xfffc, /* dst_mask */
1130 FALSE), /* pcrel_offset */
1132 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1133 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1135 1, /* size (0 = byte, 1 = short, 2 = long) */
1137 FALSE, /* pc_relative */
1139 complain_overflow_dont, /* complain_on_overflow */
1140 ppc64_elf_unhandled_reloc, /* special_function */
1141 "R_PPC64_PLT16_LO_DS", /* name */
1142 FALSE, /* partial_inplace */
1144 0xfffc, /* dst_mask */
1145 FALSE), /* pcrel_offset */
1147 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1148 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1150 1, /* size (0 = byte, 1 = short, 2 = long) */
1152 FALSE, /* pc_relative */
1154 complain_overflow_bitfield, /* complain_on_overflow */
1155 ppc64_elf_sectoff_reloc, /* special_function */
1156 "R_PPC64_SECTOFF_DS", /* name */
1157 FALSE, /* partial_inplace */
1159 0xfffc, /* dst_mask */
1160 FALSE), /* pcrel_offset */
1162 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1163 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1165 1, /* size (0 = byte, 1 = short, 2 = long) */
1167 FALSE, /* pc_relative */
1169 complain_overflow_dont, /* complain_on_overflow */
1170 ppc64_elf_sectoff_reloc, /* special_function */
1171 "R_PPC64_SECTOFF_LO_DS",/* name */
1172 FALSE, /* partial_inplace */
1174 0xfffc, /* dst_mask */
1175 FALSE), /* pcrel_offset */
1177 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1178 HOWTO (R_PPC64_TOC16_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_toc_reloc, /* special_function */
1186 "R_PPC64_TOC16_DS", /* name */
1187 FALSE, /* partial_inplace */
1189 0xfffc, /* dst_mask */
1190 FALSE), /* pcrel_offset */
1192 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1193 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1195 1, /* size (0 = byte, 1 = short, 2 = long) */
1197 FALSE, /* pc_relative */
1199 complain_overflow_dont, /* complain_on_overflow */
1200 ppc64_elf_toc_reloc, /* special_function */
1201 "R_PPC64_TOC16_LO_DS", /* name */
1202 FALSE, /* partial_inplace */
1204 0xfffc, /* dst_mask */
1205 FALSE), /* pcrel_offset */
1207 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1208 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1209 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1211 1, /* size (0 = byte, 1 = short, 2 = long) */
1213 FALSE, /* pc_relative */
1215 complain_overflow_signed, /* complain_on_overflow */
1216 ppc64_elf_unhandled_reloc, /* special_function */
1217 "R_PPC64_PLTGOT16_DS", /* name */
1218 FALSE, /* partial_inplace */
1220 0xfffc, /* dst_mask */
1221 FALSE), /* pcrel_offset */
1223 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1224 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1225 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1227 1, /* 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_PLTGOT16_LO_DS",/* name */
1234 FALSE, /* partial_inplace */
1236 0xfffc, /* dst_mask */
1237 FALSE), /* pcrel_offset */
1239 /* Marker relocs for TLS. */
1242 2, /* size (0 = byte, 1 = short, 2 = long) */
1244 FALSE, /* pc_relative */
1246 complain_overflow_dont, /* complain_on_overflow */
1247 bfd_elf_generic_reloc, /* special_function */
1248 "R_PPC64_TLS", /* name */
1249 FALSE, /* partial_inplace */
1252 FALSE), /* pcrel_offset */
1254 HOWTO (R_PPC64_TLSGD,
1256 2, /* size (0 = byte, 1 = short, 2 = long) */
1258 FALSE, /* pc_relative */
1260 complain_overflow_dont, /* complain_on_overflow */
1261 bfd_elf_generic_reloc, /* special_function */
1262 "R_PPC64_TLSGD", /* name */
1263 FALSE, /* partial_inplace */
1266 FALSE), /* pcrel_offset */
1268 HOWTO (R_PPC64_TLSLD,
1270 2, /* size (0 = byte, 1 = short, 2 = long) */
1272 FALSE, /* pc_relative */
1274 complain_overflow_dont, /* complain_on_overflow */
1275 bfd_elf_generic_reloc, /* special_function */
1276 "R_PPC64_TLSLD", /* name */
1277 FALSE, /* partial_inplace */
1280 FALSE), /* pcrel_offset */
1282 /* Computes the load module index of the load module that contains the
1283 definition of its TLS sym. */
1284 HOWTO (R_PPC64_DTPMOD64,
1286 4, /* size (0 = byte, 1 = short, 2 = long) */
1288 FALSE, /* pc_relative */
1290 complain_overflow_dont, /* complain_on_overflow */
1291 ppc64_elf_unhandled_reloc, /* special_function */
1292 "R_PPC64_DTPMOD64", /* name */
1293 FALSE, /* partial_inplace */
1295 ONES (64), /* dst_mask */
1296 FALSE), /* pcrel_offset */
1298 /* Computes a dtv-relative displacement, the difference between the value
1299 of sym+add and the base address of the thread-local storage block that
1300 contains the definition of sym, minus 0x8000. */
1301 HOWTO (R_PPC64_DTPREL64,
1303 4, /* size (0 = byte, 1 = short, 2 = long) */
1305 FALSE, /* pc_relative */
1307 complain_overflow_dont, /* complain_on_overflow */
1308 ppc64_elf_unhandled_reloc, /* special_function */
1309 "R_PPC64_DTPREL64", /* name */
1310 FALSE, /* partial_inplace */
1312 ONES (64), /* dst_mask */
1313 FALSE), /* pcrel_offset */
1315 /* A 16 bit dtprel reloc. */
1316 HOWTO (R_PPC64_DTPREL16,
1318 1, /* size (0 = byte, 1 = short, 2 = long) */
1320 FALSE, /* pc_relative */
1322 complain_overflow_signed, /* complain_on_overflow */
1323 ppc64_elf_unhandled_reloc, /* special_function */
1324 "R_PPC64_DTPREL16", /* name */
1325 FALSE, /* partial_inplace */
1327 0xffff, /* dst_mask */
1328 FALSE), /* pcrel_offset */
1330 /* Like DTPREL16, but no overflow. */
1331 HOWTO (R_PPC64_DTPREL16_LO,
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1335 FALSE, /* pc_relative */
1337 complain_overflow_dont, /* complain_on_overflow */
1338 ppc64_elf_unhandled_reloc, /* special_function */
1339 "R_PPC64_DTPREL16_LO", /* name */
1340 FALSE, /* partial_inplace */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1345 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1346 HOWTO (R_PPC64_DTPREL16_HI,
1347 16, /* rightshift */
1348 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 FALSE, /* pc_relative */
1352 complain_overflow_dont, /* complain_on_overflow */
1353 ppc64_elf_unhandled_reloc, /* special_function */
1354 "R_PPC64_DTPREL16_HI", /* name */
1355 FALSE, /* partial_inplace */
1357 0xffff, /* dst_mask */
1358 FALSE), /* pcrel_offset */
1360 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1361 HOWTO (R_PPC64_DTPREL16_HA,
1362 16, /* rightshift */
1363 1, /* size (0 = byte, 1 = short, 2 = long) */
1365 FALSE, /* pc_relative */
1367 complain_overflow_dont, /* complain_on_overflow */
1368 ppc64_elf_unhandled_reloc, /* special_function */
1369 "R_PPC64_DTPREL16_HA", /* name */
1370 FALSE, /* partial_inplace */
1372 0xffff, /* dst_mask */
1373 FALSE), /* pcrel_offset */
1375 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1376 HOWTO (R_PPC64_DTPREL16_HIGHER,
1377 32, /* rightshift */
1378 1, /* size (0 = byte, 1 = short, 2 = long) */
1380 FALSE, /* pc_relative */
1382 complain_overflow_dont, /* complain_on_overflow */
1383 ppc64_elf_unhandled_reloc, /* special_function */
1384 "R_PPC64_DTPREL16_HIGHER", /* name */
1385 FALSE, /* partial_inplace */
1387 0xffff, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1390 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1391 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1392 32, /* rightshift */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1395 FALSE, /* pc_relative */
1397 complain_overflow_dont, /* complain_on_overflow */
1398 ppc64_elf_unhandled_reloc, /* special_function */
1399 "R_PPC64_DTPREL16_HIGHERA", /* name */
1400 FALSE, /* partial_inplace */
1402 0xffff, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1405 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1406 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1407 48, /* rightshift */
1408 1, /* size (0 = byte, 1 = short, 2 = long) */
1410 FALSE, /* pc_relative */
1412 complain_overflow_dont, /* complain_on_overflow */
1413 ppc64_elf_unhandled_reloc, /* special_function */
1414 "R_PPC64_DTPREL16_HIGHEST", /* name */
1415 FALSE, /* partial_inplace */
1417 0xffff, /* dst_mask */
1418 FALSE), /* pcrel_offset */
1420 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1421 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1422 48, /* rightshift */
1423 1, /* size (0 = byte, 1 = short, 2 = long) */
1425 FALSE, /* pc_relative */
1427 complain_overflow_dont, /* complain_on_overflow */
1428 ppc64_elf_unhandled_reloc, /* special_function */
1429 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1430 FALSE, /* partial_inplace */
1432 0xffff, /* dst_mask */
1433 FALSE), /* pcrel_offset */
1435 /* Like DTPREL16, but for insns with a DS field. */
1436 HOWTO (R_PPC64_DTPREL16_DS,
1438 1, /* size (0 = byte, 1 = short, 2 = long) */
1440 FALSE, /* pc_relative */
1442 complain_overflow_signed, /* complain_on_overflow */
1443 ppc64_elf_unhandled_reloc, /* special_function */
1444 "R_PPC64_DTPREL16_DS", /* name */
1445 FALSE, /* partial_inplace */
1447 0xfffc, /* dst_mask */
1448 FALSE), /* pcrel_offset */
1450 /* Like DTPREL16_DS, but no overflow. */
1451 HOWTO (R_PPC64_DTPREL16_LO_DS,
1453 1, /* size (0 = byte, 1 = short, 2 = long) */
1455 FALSE, /* pc_relative */
1457 complain_overflow_dont, /* complain_on_overflow */
1458 ppc64_elf_unhandled_reloc, /* special_function */
1459 "R_PPC64_DTPREL16_LO_DS", /* name */
1460 FALSE, /* partial_inplace */
1462 0xfffc, /* dst_mask */
1463 FALSE), /* pcrel_offset */
1465 /* Computes a tp-relative displacement, the difference between the value of
1466 sym+add and the value of the thread pointer (r13). */
1467 HOWTO (R_PPC64_TPREL64,
1469 4, /* size (0 = byte, 1 = short, 2 = long) */
1471 FALSE, /* pc_relative */
1473 complain_overflow_dont, /* complain_on_overflow */
1474 ppc64_elf_unhandled_reloc, /* special_function */
1475 "R_PPC64_TPREL64", /* name */
1476 FALSE, /* partial_inplace */
1478 ONES (64), /* dst_mask */
1479 FALSE), /* pcrel_offset */
1481 /* A 16 bit tprel reloc. */
1482 HOWTO (R_PPC64_TPREL16,
1484 1, /* size (0 = byte, 1 = short, 2 = long) */
1486 FALSE, /* pc_relative */
1488 complain_overflow_signed, /* complain_on_overflow */
1489 ppc64_elf_unhandled_reloc, /* special_function */
1490 "R_PPC64_TPREL16", /* name */
1491 FALSE, /* partial_inplace */
1493 0xffff, /* dst_mask */
1494 FALSE), /* pcrel_offset */
1496 /* Like TPREL16, but no overflow. */
1497 HOWTO (R_PPC64_TPREL16_LO,
1499 1, /* size (0 = byte, 1 = short, 2 = long) */
1501 FALSE, /* pc_relative */
1503 complain_overflow_dont, /* complain_on_overflow */
1504 ppc64_elf_unhandled_reloc, /* special_function */
1505 "R_PPC64_TPREL16_LO", /* name */
1506 FALSE, /* partial_inplace */
1508 0xffff, /* dst_mask */
1509 FALSE), /* pcrel_offset */
1511 /* Like TPREL16_LO, but next higher group of 16 bits. */
1512 HOWTO (R_PPC64_TPREL16_HI,
1513 16, /* rightshift */
1514 1, /* size (0 = byte, 1 = short, 2 = long) */
1516 FALSE, /* pc_relative */
1518 complain_overflow_dont, /* complain_on_overflow */
1519 ppc64_elf_unhandled_reloc, /* special_function */
1520 "R_PPC64_TPREL16_HI", /* name */
1521 FALSE, /* partial_inplace */
1523 0xffff, /* dst_mask */
1524 FALSE), /* pcrel_offset */
1526 /* Like TPREL16_HI, but adjust for low 16 bits. */
1527 HOWTO (R_PPC64_TPREL16_HA,
1528 16, /* rightshift */
1529 1, /* size (0 = byte, 1 = short, 2 = long) */
1531 FALSE, /* pc_relative */
1533 complain_overflow_dont, /* complain_on_overflow */
1534 ppc64_elf_unhandled_reloc, /* special_function */
1535 "R_PPC64_TPREL16_HA", /* name */
1536 FALSE, /* partial_inplace */
1538 0xffff, /* dst_mask */
1539 FALSE), /* pcrel_offset */
1541 /* Like TPREL16_HI, but next higher group of 16 bits. */
1542 HOWTO (R_PPC64_TPREL16_HIGHER,
1543 32, /* rightshift */
1544 1, /* size (0 = byte, 1 = short, 2 = long) */
1546 FALSE, /* pc_relative */
1548 complain_overflow_dont, /* complain_on_overflow */
1549 ppc64_elf_unhandled_reloc, /* special_function */
1550 "R_PPC64_TPREL16_HIGHER", /* name */
1551 FALSE, /* partial_inplace */
1553 0xffff, /* dst_mask */
1554 FALSE), /* pcrel_offset */
1556 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1557 HOWTO (R_PPC64_TPREL16_HIGHERA,
1558 32, /* rightshift */
1559 1, /* size (0 = byte, 1 = short, 2 = long) */
1561 FALSE, /* pc_relative */
1563 complain_overflow_dont, /* complain_on_overflow */
1564 ppc64_elf_unhandled_reloc, /* special_function */
1565 "R_PPC64_TPREL16_HIGHERA", /* name */
1566 FALSE, /* partial_inplace */
1568 0xffff, /* dst_mask */
1569 FALSE), /* pcrel_offset */
1571 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1572 HOWTO (R_PPC64_TPREL16_HIGHEST,
1573 48, /* rightshift */
1574 1, /* size (0 = byte, 1 = short, 2 = long) */
1576 FALSE, /* pc_relative */
1578 complain_overflow_dont, /* complain_on_overflow */
1579 ppc64_elf_unhandled_reloc, /* special_function */
1580 "R_PPC64_TPREL16_HIGHEST", /* name */
1581 FALSE, /* partial_inplace */
1583 0xffff, /* dst_mask */
1584 FALSE), /* pcrel_offset */
1586 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1587 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1588 48, /* rightshift */
1589 1, /* size (0 = byte, 1 = short, 2 = long) */
1591 FALSE, /* pc_relative */
1593 complain_overflow_dont, /* complain_on_overflow */
1594 ppc64_elf_unhandled_reloc, /* special_function */
1595 "R_PPC64_TPREL16_HIGHESTA", /* name */
1596 FALSE, /* partial_inplace */
1598 0xffff, /* dst_mask */
1599 FALSE), /* pcrel_offset */
1601 /* Like TPREL16, but for insns with a DS field. */
1602 HOWTO (R_PPC64_TPREL16_DS,
1604 1, /* size (0 = byte, 1 = short, 2 = long) */
1606 FALSE, /* pc_relative */
1608 complain_overflow_signed, /* complain_on_overflow */
1609 ppc64_elf_unhandled_reloc, /* special_function */
1610 "R_PPC64_TPREL16_DS", /* name */
1611 FALSE, /* partial_inplace */
1613 0xfffc, /* dst_mask */
1614 FALSE), /* pcrel_offset */
1616 /* Like TPREL16_DS, but no overflow. */
1617 HOWTO (R_PPC64_TPREL16_LO_DS,
1619 1, /* size (0 = byte, 1 = short, 2 = long) */
1621 FALSE, /* pc_relative */
1623 complain_overflow_dont, /* complain_on_overflow */
1624 ppc64_elf_unhandled_reloc, /* special_function */
1625 "R_PPC64_TPREL16_LO_DS", /* name */
1626 FALSE, /* partial_inplace */
1628 0xfffc, /* dst_mask */
1629 FALSE), /* pcrel_offset */
1631 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1632 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1633 to the first entry relative to the TOC base (r2). */
1634 HOWTO (R_PPC64_GOT_TLSGD16,
1636 1, /* size (0 = byte, 1 = short, 2 = long) */
1638 FALSE, /* pc_relative */
1640 complain_overflow_signed, /* complain_on_overflow */
1641 ppc64_elf_unhandled_reloc, /* special_function */
1642 "R_PPC64_GOT_TLSGD16", /* name */
1643 FALSE, /* partial_inplace */
1645 0xffff, /* dst_mask */
1646 FALSE), /* pcrel_offset */
1648 /* Like GOT_TLSGD16, but no overflow. */
1649 HOWTO (R_PPC64_GOT_TLSGD16_LO,
1651 1, /* size (0 = byte, 1 = short, 2 = long) */
1653 FALSE, /* pc_relative */
1655 complain_overflow_dont, /* complain_on_overflow */
1656 ppc64_elf_unhandled_reloc, /* special_function */
1657 "R_PPC64_GOT_TLSGD16_LO", /* name */
1658 FALSE, /* partial_inplace */
1660 0xffff, /* dst_mask */
1661 FALSE), /* pcrel_offset */
1663 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1664 HOWTO (R_PPC64_GOT_TLSGD16_HI,
1665 16, /* rightshift */
1666 1, /* size (0 = byte, 1 = short, 2 = long) */
1668 FALSE, /* pc_relative */
1670 complain_overflow_dont, /* complain_on_overflow */
1671 ppc64_elf_unhandled_reloc, /* special_function */
1672 "R_PPC64_GOT_TLSGD16_HI", /* name */
1673 FALSE, /* partial_inplace */
1675 0xffff, /* dst_mask */
1676 FALSE), /* pcrel_offset */
1678 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1679 HOWTO (R_PPC64_GOT_TLSGD16_HA,
1680 16, /* rightshift */
1681 1, /* size (0 = byte, 1 = short, 2 = long) */
1683 FALSE, /* pc_relative */
1685 complain_overflow_dont, /* complain_on_overflow */
1686 ppc64_elf_unhandled_reloc, /* special_function */
1687 "R_PPC64_GOT_TLSGD16_HA", /* name */
1688 FALSE, /* partial_inplace */
1690 0xffff, /* dst_mask */
1691 FALSE), /* pcrel_offset */
1693 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1694 with values (sym+add)@dtpmod and zero, and computes the offset to the
1695 first entry relative to the TOC base (r2). */
1696 HOWTO (R_PPC64_GOT_TLSLD16,
1698 1, /* size (0 = byte, 1 = short, 2 = long) */
1700 FALSE, /* pc_relative */
1702 complain_overflow_signed, /* complain_on_overflow */
1703 ppc64_elf_unhandled_reloc, /* special_function */
1704 "R_PPC64_GOT_TLSLD16", /* name */
1705 FALSE, /* partial_inplace */
1707 0xffff, /* dst_mask */
1708 FALSE), /* pcrel_offset */
1710 /* Like GOT_TLSLD16, but no overflow. */
1711 HOWTO (R_PPC64_GOT_TLSLD16_LO,
1713 1, /* size (0 = byte, 1 = short, 2 = long) */
1715 FALSE, /* pc_relative */
1717 complain_overflow_dont, /* complain_on_overflow */
1718 ppc64_elf_unhandled_reloc, /* special_function */
1719 "R_PPC64_GOT_TLSLD16_LO", /* name */
1720 FALSE, /* partial_inplace */
1722 0xffff, /* dst_mask */
1723 FALSE), /* pcrel_offset */
1725 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1726 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1727 16, /* rightshift */
1728 1, /* size (0 = byte, 1 = short, 2 = long) */
1730 FALSE, /* pc_relative */
1732 complain_overflow_dont, /* complain_on_overflow */
1733 ppc64_elf_unhandled_reloc, /* special_function */
1734 "R_PPC64_GOT_TLSLD16_HI", /* name */
1735 FALSE, /* partial_inplace */
1737 0xffff, /* dst_mask */
1738 FALSE), /* pcrel_offset */
1740 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1741 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1742 16, /* rightshift */
1743 1, /* size (0 = byte, 1 = short, 2 = long) */
1745 FALSE, /* pc_relative */
1747 complain_overflow_dont, /* complain_on_overflow */
1748 ppc64_elf_unhandled_reloc, /* special_function */
1749 "R_PPC64_GOT_TLSLD16_HA", /* name */
1750 FALSE, /* partial_inplace */
1752 0xffff, /* dst_mask */
1753 FALSE), /* pcrel_offset */
1755 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1756 the offset to the entry relative to the TOC base (r2). */
1757 HOWTO (R_PPC64_GOT_DTPREL16_DS,
1759 1, /* size (0 = byte, 1 = short, 2 = long) */
1761 FALSE, /* pc_relative */
1763 complain_overflow_signed, /* complain_on_overflow */
1764 ppc64_elf_unhandled_reloc, /* special_function */
1765 "R_PPC64_GOT_DTPREL16_DS", /* name */
1766 FALSE, /* partial_inplace */
1768 0xfffc, /* dst_mask */
1769 FALSE), /* pcrel_offset */
1771 /* Like GOT_DTPREL16_DS, but no overflow. */
1772 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
1774 1, /* size (0 = byte, 1 = short, 2 = long) */
1776 FALSE, /* pc_relative */
1778 complain_overflow_dont, /* complain_on_overflow */
1779 ppc64_elf_unhandled_reloc, /* special_function */
1780 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1781 FALSE, /* partial_inplace */
1783 0xfffc, /* dst_mask */
1784 FALSE), /* pcrel_offset */
1786 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1787 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1788 16, /* rightshift */
1789 1, /* size (0 = byte, 1 = short, 2 = long) */
1791 FALSE, /* pc_relative */
1793 complain_overflow_dont, /* complain_on_overflow */
1794 ppc64_elf_unhandled_reloc, /* special_function */
1795 "R_PPC64_GOT_DTPREL16_HI", /* name */
1796 FALSE, /* partial_inplace */
1798 0xffff, /* dst_mask */
1799 FALSE), /* pcrel_offset */
1801 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1802 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1803 16, /* rightshift */
1804 1, /* size (0 = byte, 1 = short, 2 = long) */
1806 FALSE, /* pc_relative */
1808 complain_overflow_dont, /* complain_on_overflow */
1809 ppc64_elf_unhandled_reloc, /* special_function */
1810 "R_PPC64_GOT_DTPREL16_HA", /* name */
1811 FALSE, /* partial_inplace */
1813 0xffff, /* dst_mask */
1814 FALSE), /* pcrel_offset */
1816 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1817 offset to the entry relative to the TOC base (r2). */
1818 HOWTO (R_PPC64_GOT_TPREL16_DS,
1820 1, /* size (0 = byte, 1 = short, 2 = long) */
1822 FALSE, /* pc_relative */
1824 complain_overflow_signed, /* complain_on_overflow */
1825 ppc64_elf_unhandled_reloc, /* special_function */
1826 "R_PPC64_GOT_TPREL16_DS", /* name */
1827 FALSE, /* partial_inplace */
1829 0xfffc, /* dst_mask */
1830 FALSE), /* pcrel_offset */
1832 /* Like GOT_TPREL16_DS, but no overflow. */
1833 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
1835 1, /* size (0 = byte, 1 = short, 2 = long) */
1837 FALSE, /* pc_relative */
1839 complain_overflow_dont, /* complain_on_overflow */
1840 ppc64_elf_unhandled_reloc, /* special_function */
1841 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1842 FALSE, /* partial_inplace */
1844 0xfffc, /* dst_mask */
1845 FALSE), /* pcrel_offset */
1847 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1848 HOWTO (R_PPC64_GOT_TPREL16_HI,
1849 16, /* rightshift */
1850 1, /* size (0 = byte, 1 = short, 2 = long) */
1852 FALSE, /* pc_relative */
1854 complain_overflow_dont, /* complain_on_overflow */
1855 ppc64_elf_unhandled_reloc, /* special_function */
1856 "R_PPC64_GOT_TPREL16_HI", /* name */
1857 FALSE, /* partial_inplace */
1859 0xffff, /* dst_mask */
1860 FALSE), /* pcrel_offset */
1862 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1863 HOWTO (R_PPC64_GOT_TPREL16_HA,
1864 16, /* rightshift */
1865 1, /* size (0 = byte, 1 = short, 2 = long) */
1867 FALSE, /* pc_relative */
1869 complain_overflow_dont, /* complain_on_overflow */
1870 ppc64_elf_unhandled_reloc, /* special_function */
1871 "R_PPC64_GOT_TPREL16_HA", /* name */
1872 FALSE, /* partial_inplace */
1874 0xffff, /* dst_mask */
1875 FALSE), /* pcrel_offset */
1877 HOWTO (R_PPC64_JMP_IREL, /* type */
1879 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1881 FALSE, /* pc_relative */
1883 complain_overflow_dont, /* complain_on_overflow */
1884 ppc64_elf_unhandled_reloc, /* special_function */
1885 "R_PPC64_JMP_IREL", /* name */
1886 FALSE, /* partial_inplace */
1889 FALSE), /* pcrel_offset */
1891 HOWTO (R_PPC64_IRELATIVE, /* type */
1893 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1895 FALSE, /* pc_relative */
1897 complain_overflow_dont, /* complain_on_overflow */
1898 bfd_elf_generic_reloc, /* special_function */
1899 "R_PPC64_IRELATIVE", /* name */
1900 FALSE, /* partial_inplace */
1902 ONES (64), /* dst_mask */
1903 FALSE), /* pcrel_offset */
1905 /* A 16 bit relative relocation. */
1906 HOWTO (R_PPC64_REL16, /* type */
1908 1, /* size (0 = byte, 1 = short, 2 = long) */
1910 TRUE, /* pc_relative */
1912 complain_overflow_bitfield, /* complain_on_overflow */
1913 bfd_elf_generic_reloc, /* special_function */
1914 "R_PPC64_REL16", /* name */
1915 FALSE, /* partial_inplace */
1917 0xffff, /* dst_mask */
1918 TRUE), /* pcrel_offset */
1920 /* A 16 bit relative relocation without overflow. */
1921 HOWTO (R_PPC64_REL16_LO, /* type */
1923 1, /* size (0 = byte, 1 = short, 2 = long) */
1925 TRUE, /* pc_relative */
1927 complain_overflow_dont,/* complain_on_overflow */
1928 bfd_elf_generic_reloc, /* special_function */
1929 "R_PPC64_REL16_LO", /* name */
1930 FALSE, /* partial_inplace */
1932 0xffff, /* dst_mask */
1933 TRUE), /* pcrel_offset */
1935 /* The high order 16 bits of a relative address. */
1936 HOWTO (R_PPC64_REL16_HI, /* type */
1937 16, /* rightshift */
1938 1, /* size (0 = byte, 1 = short, 2 = long) */
1940 TRUE, /* pc_relative */
1942 complain_overflow_dont, /* complain_on_overflow */
1943 bfd_elf_generic_reloc, /* special_function */
1944 "R_PPC64_REL16_HI", /* name */
1945 FALSE, /* partial_inplace */
1947 0xffff, /* dst_mask */
1948 TRUE), /* pcrel_offset */
1950 /* The high order 16 bits of a relative address, plus 1 if the contents of
1951 the low 16 bits, treated as a signed number, is negative. */
1952 HOWTO (R_PPC64_REL16_HA, /* type */
1953 16, /* rightshift */
1954 1, /* size (0 = byte, 1 = short, 2 = long) */
1956 TRUE, /* pc_relative */
1958 complain_overflow_dont, /* complain_on_overflow */
1959 ppc64_elf_ha_reloc, /* special_function */
1960 "R_PPC64_REL16_HA", /* name */
1961 FALSE, /* partial_inplace */
1963 0xffff, /* dst_mask */
1964 TRUE), /* pcrel_offset */
1966 /* GNU extension to record C++ vtable hierarchy. */
1967 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1969 0, /* size (0 = byte, 1 = short, 2 = long) */
1971 FALSE, /* pc_relative */
1973 complain_overflow_dont, /* complain_on_overflow */
1974 NULL, /* special_function */
1975 "R_PPC64_GNU_VTINHERIT", /* name */
1976 FALSE, /* partial_inplace */
1979 FALSE), /* pcrel_offset */
1981 /* GNU extension to record C++ vtable member usage. */
1982 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1984 0, /* size (0 = byte, 1 = short, 2 = long) */
1986 FALSE, /* pc_relative */
1988 complain_overflow_dont, /* complain_on_overflow */
1989 NULL, /* special_function */
1990 "R_PPC64_GNU_VTENTRY", /* name */
1991 FALSE, /* partial_inplace */
1994 FALSE), /* pcrel_offset */
1998 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
2002 ppc_howto_init (void)
2004 unsigned int i, type;
2007 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2010 type = ppc64_elf_howto_raw[i].type;
2011 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2012 / sizeof (ppc64_elf_howto_table[0])));
2013 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
2017 static reloc_howto_type *
2018 ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2019 bfd_reloc_code_real_type code)
2021 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
2023 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2024 /* Initialize howto table if needed. */
2032 case BFD_RELOC_NONE: r = R_PPC64_NONE;
2034 case BFD_RELOC_32: r = R_PPC64_ADDR32;
2036 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
2038 case BFD_RELOC_16: r = R_PPC64_ADDR16;
2040 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
2042 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
2044 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
2046 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
2048 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
2050 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
2052 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
2054 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
2056 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
2058 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
2060 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
2062 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
2064 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
2066 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
2068 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
2070 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
2072 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
2074 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
2076 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
2078 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
2080 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
2082 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
2084 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
2086 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
2088 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
2090 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
2092 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
2094 case BFD_RELOC_64: r = R_PPC64_ADDR64;
2096 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
2098 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
2100 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
2102 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
2104 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
2106 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
2108 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
2110 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
2112 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
2114 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
2116 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
2118 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
2120 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
2122 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
2124 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
2126 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
2128 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
2130 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
2132 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
2134 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
2136 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
2138 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
2140 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
2142 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
2144 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
2146 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
2148 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
2150 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
2152 case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD;
2154 case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD;
2156 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
2158 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
2160 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
2162 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
2164 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
2166 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
2168 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2170 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2172 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2174 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2176 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2178 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2180 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2182 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2184 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2186 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2188 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2190 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2192 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2194 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2196 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2198 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2200 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2202 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2204 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2206 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2208 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2210 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2212 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2214 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2216 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2218 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2220 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2222 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2224 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2226 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2228 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2230 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2232 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2234 case BFD_RELOC_16_PCREL: r = R_PPC64_REL16;
2236 case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO;
2238 case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI;
2240 case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA;
2242 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2244 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
2248 return ppc64_elf_howto_table[r];
2251 static reloc_howto_type *
2252 ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2258 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2260 if (ppc64_elf_howto_raw[i].name != NULL
2261 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2262 return &ppc64_elf_howto_raw[i];
2267 /* Set the howto pointer for a PowerPC ELF reloc. */
2270 ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2271 Elf_Internal_Rela *dst)
2275 /* Initialize howto table if needed. */
2276 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2279 type = ELF64_R_TYPE (dst->r_info);
2280 if (type >= (sizeof (ppc64_elf_howto_table)
2281 / sizeof (ppc64_elf_howto_table[0])))
2283 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2285 type = R_PPC64_NONE;
2287 cache_ptr->howto = ppc64_elf_howto_table[type];
2290 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2292 static bfd_reloc_status_type
2293 ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2294 void *data, asection *input_section,
2295 bfd *output_bfd, char **error_message)
2297 /* If this is a relocatable link (output_bfd test tells us), just
2298 call the generic function. Any adjustment will be done at final
2300 if (output_bfd != NULL)
2301 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2302 input_section, output_bfd, error_message);
2304 /* Adjust the addend for sign extension of the low 16 bits.
2305 We won't actually be using the low 16 bits, so trashing them
2307 reloc_entry->addend += 0x8000;
2308 return bfd_reloc_continue;
2311 static bfd_reloc_status_type
2312 ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2313 void *data, asection *input_section,
2314 bfd *output_bfd, char **error_message)
2316 if (output_bfd != NULL)
2317 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2318 input_section, output_bfd, error_message);
2320 if (strcmp (symbol->section->name, ".opd") == 0
2321 && (symbol->section->owner->flags & DYNAMIC) == 0)
2323 bfd_vma dest = opd_entry_value (symbol->section,
2324 symbol->value + reloc_entry->addend,
2326 if (dest != (bfd_vma) -1)
2327 reloc_entry->addend = dest - (symbol->value
2328 + symbol->section->output_section->vma
2329 + symbol->section->output_offset);
2331 return bfd_reloc_continue;
2334 static bfd_reloc_status_type
2335 ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2336 void *data, asection *input_section,
2337 bfd *output_bfd, char **error_message)
2340 enum elf_ppc64_reloc_type r_type;
2341 bfd_size_type octets;
2342 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
2343 bfd_boolean is_power4 = FALSE;
2345 /* If this is a relocatable link (output_bfd test tells us), just
2346 call the generic function. Any adjustment will be done at final
2348 if (output_bfd != NULL)
2349 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2350 input_section, output_bfd, error_message);
2352 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2353 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2354 insn &= ~(0x01 << 21);
2355 r_type = reloc_entry->howto->type;
2356 if (r_type == R_PPC64_ADDR14_BRTAKEN
2357 || r_type == R_PPC64_REL14_BRTAKEN)
2358 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2362 /* Set 'a' bit. This is 0b00010 in BO field for branch
2363 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2364 for branch on CTR insns (BO == 1a00t or 1a01t). */
2365 if ((insn & (0x14 << 21)) == (0x04 << 21))
2367 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2377 if (!bfd_is_com_section (symbol->section))
2378 target = symbol->value;
2379 target += symbol->section->output_section->vma;
2380 target += symbol->section->output_offset;
2381 target += reloc_entry->addend;
2383 from = (reloc_entry->address
2384 + input_section->output_offset
2385 + input_section->output_section->vma);
2387 /* Invert 'y' bit if not the default. */
2388 if ((bfd_signed_vma) (target - from) < 0)
2391 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2393 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2394 input_section, output_bfd, error_message);
2397 static bfd_reloc_status_type
2398 ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2399 void *data, asection *input_section,
2400 bfd *output_bfd, char **error_message)
2402 /* If this is a relocatable link (output_bfd test tells us), just
2403 call the generic function. Any adjustment will be done at final
2405 if (output_bfd != NULL)
2406 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2407 input_section, output_bfd, error_message);
2409 /* Subtract the symbol section base address. */
2410 reloc_entry->addend -= symbol->section->output_section->vma;
2411 return bfd_reloc_continue;
2414 static bfd_reloc_status_type
2415 ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2416 void *data, asection *input_section,
2417 bfd *output_bfd, char **error_message)
2419 /* If this is a relocatable link (output_bfd test tells us), just
2420 call the generic function. Any adjustment will be done at final
2422 if (output_bfd != NULL)
2423 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2424 input_section, output_bfd, error_message);
2426 /* Subtract the symbol section base address. */
2427 reloc_entry->addend -= symbol->section->output_section->vma;
2429 /* Adjust the addend for sign extension of the low 16 bits. */
2430 reloc_entry->addend += 0x8000;
2431 return bfd_reloc_continue;
2434 static bfd_reloc_status_type
2435 ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2436 void *data, asection *input_section,
2437 bfd *output_bfd, char **error_message)
2441 /* If this is a relocatable link (output_bfd test tells us), just
2442 call the generic function. Any adjustment will be done at final
2444 if (output_bfd != NULL)
2445 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2446 input_section, output_bfd, error_message);
2448 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2450 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2452 /* Subtract the TOC base address. */
2453 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2454 return bfd_reloc_continue;
2457 static bfd_reloc_status_type
2458 ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2459 void *data, asection *input_section,
2460 bfd *output_bfd, char **error_message)
2464 /* If this is a relocatable link (output_bfd test tells us), just
2465 call the generic function. Any adjustment will be done at final
2467 if (output_bfd != NULL)
2468 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2469 input_section, output_bfd, error_message);
2471 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2473 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2475 /* Subtract the TOC base address. */
2476 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2478 /* Adjust the addend for sign extension of the low 16 bits. */
2479 reloc_entry->addend += 0x8000;
2480 return bfd_reloc_continue;
2483 static bfd_reloc_status_type
2484 ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2485 void *data, asection *input_section,
2486 bfd *output_bfd, char **error_message)
2489 bfd_size_type octets;
2491 /* If this is a relocatable link (output_bfd test tells us), just
2492 call the generic function. Any adjustment will be done at final
2494 if (output_bfd != NULL)
2495 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2496 input_section, output_bfd, error_message);
2498 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2500 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2502 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2503 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2504 return bfd_reloc_ok;
2507 static bfd_reloc_status_type
2508 ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2509 void *data, asection *input_section,
2510 bfd *output_bfd, char **error_message)
2512 /* If this is a relocatable link (output_bfd test tells us), just
2513 call the generic function. Any adjustment will be done at final
2515 if (output_bfd != NULL)
2516 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2517 input_section, output_bfd, error_message);
2519 if (error_message != NULL)
2521 static char buf[60];
2522 sprintf (buf, "generic linker can't handle %s",
2523 reloc_entry->howto->name);
2524 *error_message = buf;
2526 return bfd_reloc_dangerous;
2529 /* Track GOT entries needed for a given symbol. We might need more
2530 than one got entry per symbol. */
2533 struct got_entry *next;
2535 /* The symbol addend that we'll be placing in the GOT. */
2538 /* Unlike other ELF targets, we use separate GOT entries for the same
2539 symbol referenced from different input files. This is to support
2540 automatic multiple TOC/GOT sections, where the TOC base can vary
2541 from one input file to another. After partitioning into TOC groups
2542 we merge entries within the group.
2544 Point to the BFD owning this GOT entry. */
2547 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2548 TLS_TPREL or TLS_DTPREL for tls entries. */
2549 unsigned char tls_type;
2551 /* Non-zero if got.ent points to real entry. */
2552 unsigned char is_indirect;
2554 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2557 bfd_signed_vma refcount;
2559 struct got_entry *ent;
2563 /* The same for PLT. */
2566 struct plt_entry *next;
2572 bfd_signed_vma refcount;
2577 struct ppc64_elf_obj_tdata
2579 struct elf_obj_tdata elf;
2581 /* Shortcuts to dynamic linker sections. */
2585 /* Used during garbage collection. We attach global symbols defined
2586 on removed .opd entries to this section so that the sym is removed. */
2587 asection *deleted_section;
2589 /* TLS local dynamic got entry handling. Support for multiple GOT
2590 sections means we potentially need one of these for each input bfd. */
2591 struct got_entry tlsld_got;
2593 /* A copy of relocs before they are modified for --emit-relocs. */
2594 Elf_Internal_Rela *opd_relocs;
2596 /* Nonzero if this bfd has small toc/got relocs, ie. that expect
2597 the reloc to be in the range -32768 to 32767. */
2598 unsigned int has_small_toc_reloc;
2601 #define ppc64_elf_tdata(bfd) \
2602 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2604 #define ppc64_tlsld_got(bfd) \
2605 (&ppc64_elf_tdata (bfd)->tlsld_got)
2607 #define is_ppc64_elf(bfd) \
2608 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2609 && elf_object_id (bfd) == PPC64_ELF_DATA)
2611 /* Override the generic function because we store some extras. */
2614 ppc64_elf_mkobject (bfd *abfd)
2616 return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata),
2620 /* Fix bad default arch selected for a 64 bit input bfd when the
2621 default is 32 bit. */
2624 ppc64_elf_object_p (bfd *abfd)
2626 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2628 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2630 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2632 /* Relies on arch after 32 bit default being 64 bit default. */
2633 abfd->arch_info = abfd->arch_info->next;
2634 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2640 /* Support for core dump NOTE sections. */
2643 ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2645 size_t offset, size;
2647 if (note->descsz != 504)
2651 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2654 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2660 /* Make a ".reg/999" section. */
2661 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2662 size, note->descpos + offset);
2666 ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2668 if (note->descsz != 136)
2671 elf_tdata (abfd)->core_program
2672 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2673 elf_tdata (abfd)->core_command
2674 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2680 ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2693 va_start (ap, note_type);
2694 memset (data, 0, 40);
2695 strncpy (data + 40, va_arg (ap, const char *), 16);
2696 strncpy (data + 56, va_arg (ap, const char *), 80);
2698 return elfcore_write_note (abfd, buf, bufsiz,
2699 "CORE", note_type, data, sizeof (data));
2710 va_start (ap, note_type);
2711 memset (data, 0, 112);
2712 pid = va_arg (ap, long);
2713 bfd_put_32 (abfd, pid, data + 32);
2714 cursig = va_arg (ap, int);
2715 bfd_put_16 (abfd, cursig, data + 12);
2716 greg = va_arg (ap, const void *);
2717 memcpy (data + 112, greg, 384);
2718 memset (data + 496, 0, 8);
2720 return elfcore_write_note (abfd, buf, bufsiz,
2721 "CORE", note_type, data, sizeof (data));
2726 /* Merge backend specific data from an object file to the output
2727 object file when linking. */
2730 ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2732 /* Check if we have the same endianess. */
2733 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
2734 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
2735 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2739 if (bfd_big_endian (ibfd))
2740 msg = _("%B: compiled for a big endian system "
2741 "and target is little endian");
2743 msg = _("%B: compiled for a little endian system "
2744 "and target is big endian");
2746 (*_bfd_error_handler) (msg, ibfd);
2748 bfd_set_error (bfd_error_wrong_format);
2755 /* Add extra PPC sections. */
2757 static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
2759 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
2760 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2761 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2762 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2763 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2764 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2765 { NULL, 0, 0, 0, 0 }
2768 enum _ppc64_sec_type {
2774 struct _ppc64_elf_section_data
2776 struct bfd_elf_section_data elf;
2780 /* An array with one entry for each opd function descriptor. */
2781 struct _opd_sec_data
2783 /* Points to the function code section for local opd entries. */
2784 asection **func_sec;
2786 /* After editing .opd, adjust references to opd local syms. */
2790 /* An array for toc sections, indexed by offset/8. */
2791 struct _toc_sec_data
2793 /* Specifies the relocation symbol index used at a given toc offset. */
2796 /* And the relocation addend. */
2801 enum _ppc64_sec_type sec_type:2;
2803 /* Flag set when small branches are detected. Used to
2804 select suitable defaults for the stub group size. */
2805 unsigned int has_14bit_branch:1;
2808 #define ppc64_elf_section_data(sec) \
2809 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2812 ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
2814 if (!sec->used_by_bfd)
2816 struct _ppc64_elf_section_data *sdata;
2817 bfd_size_type amt = sizeof (*sdata);
2819 sdata = bfd_zalloc (abfd, amt);
2822 sec->used_by_bfd = sdata;
2825 return _bfd_elf_new_section_hook (abfd, sec);
2828 static struct _opd_sec_data *
2829 get_opd_info (asection * sec)
2832 && ppc64_elf_section_data (sec) != NULL
2833 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
2834 return &ppc64_elf_section_data (sec)->u.opd;
2838 /* Parameters for the qsort hook. */
2839 static bfd_boolean synthetic_relocatable;
2841 /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
2844 compare_symbols (const void *ap, const void *bp)
2846 const asymbol *a = * (const asymbol **) ap;
2847 const asymbol *b = * (const asymbol **) bp;
2849 /* Section symbols first. */
2850 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
2852 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
2855 /* then .opd symbols. */
2856 if (strcmp (a->section->name, ".opd") == 0
2857 && strcmp (b->section->name, ".opd") != 0)
2859 if (strcmp (a->section->name, ".opd") != 0
2860 && strcmp (b->section->name, ".opd") == 0)
2863 /* then other code symbols. */
2864 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2865 == (SEC_CODE | SEC_ALLOC)
2866 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2867 != (SEC_CODE | SEC_ALLOC))
2870 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2871 != (SEC_CODE | SEC_ALLOC)
2872 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2873 == (SEC_CODE | SEC_ALLOC))
2876 if (synthetic_relocatable)
2878 if (a->section->id < b->section->id)
2881 if (a->section->id > b->section->id)
2885 if (a->value + a->section->vma < b->value + b->section->vma)
2888 if (a->value + a->section->vma > b->value + b->section->vma)
2891 /* For syms with the same value, prefer strong dynamic global function
2892 syms over other syms. */
2893 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
2896 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
2899 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
2902 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
2905 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
2908 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
2911 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
2914 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
2920 /* Search SYMS for a symbol of the given VALUE. */
2923 sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
2931 mid = (lo + hi) >> 1;
2932 if (syms[mid]->value + syms[mid]->section->vma < value)
2934 else if (syms[mid]->value + syms[mid]->section->vma > value)
2944 mid = (lo + hi) >> 1;
2945 if (syms[mid]->section->id < id)
2947 else if (syms[mid]->section->id > id)
2949 else if (syms[mid]->value < value)
2951 else if (syms[mid]->value > value)
2961 section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2963 bfd_vma vma = *(bfd_vma *) ptr;
2964 return ((section->flags & SEC_ALLOC) != 0
2965 && section->vma <= vma
2966 && vma < section->vma + section->size);
2969 /* Create synthetic symbols, effectively restoring "dot-symbol" function
2970 entry syms. Also generate @plt symbols for the glink branch table. */
2973 ppc64_elf_get_synthetic_symtab (bfd *abfd,
2974 long static_count, asymbol **static_syms,
2975 long dyn_count, asymbol **dyn_syms,
2982 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
2984 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2989 opd = bfd_get_section_by_name (abfd, ".opd");
2993 symcount = static_count;
2995 symcount += dyn_count;
2999 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
3003 if (!relocatable && static_count != 0 && dyn_count != 0)
3005 /* Use both symbol tables. */
3006 memcpy (syms, static_syms, static_count * sizeof (*syms));
3007 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
3009 else if (!relocatable && static_count == 0)
3010 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
3012 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
3014 synthetic_relocatable = relocatable;
3015 qsort (syms, symcount, sizeof (*syms), compare_symbols);
3017 if (!relocatable && symcount > 1)
3020 /* Trim duplicate syms, since we may have merged the normal and
3021 dynamic symbols. Actually, we only care about syms that have
3022 different values, so trim any with the same value. */
3023 for (i = 1, j = 1; i < symcount; ++i)
3024 if (syms[i - 1]->value + syms[i - 1]->section->vma
3025 != syms[i]->value + syms[i]->section->vma)
3026 syms[j++] = syms[i];
3031 if (strcmp (syms[i]->section->name, ".opd") == 0)
3035 for (; i < symcount; ++i)
3036 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3037 != (SEC_CODE | SEC_ALLOC))
3038 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
3042 for (; i < symcount; ++i)
3043 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
3047 for (; i < symcount; ++i)
3048 if (strcmp (syms[i]->section->name, ".opd") != 0)
3052 for (; i < symcount; ++i)
3053 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3054 != (SEC_CODE | SEC_ALLOC))
3062 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3067 if (opdsymend == secsymend)
3070 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3071 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
3075 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
3082 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
3086 while (r < opd->relocation + relcount
3087 && r->address < syms[i]->value + opd->vma)
3090 if (r == opd->relocation + relcount)
3093 if (r->address != syms[i]->value + opd->vma)
3096 if (r->howto->type != R_PPC64_ADDR64)
3099 sym = *r->sym_ptr_ptr;
3100 if (!sym_exists_at (syms, opdsymend, symcount,
3101 sym->section->id, sym->value + r->addend))
3104 size += sizeof (asymbol);
3105 size += strlen (syms[i]->name) + 2;
3109 s = *ret = bfd_malloc (size);
3116 names = (char *) (s + count);
3118 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
3122 while (r < opd->relocation + relcount
3123 && r->address < syms[i]->value + opd->vma)
3126 if (r == opd->relocation + relcount)
3129 if (r->address != syms[i]->value + opd->vma)
3132 if (r->howto->type != R_PPC64_ADDR64)
3135 sym = *r->sym_ptr_ptr;
3136 if (!sym_exists_at (syms, opdsymend, symcount,
3137 sym->section->id, sym->value + r->addend))
3142 s->flags |= BSF_SYNTHETIC;
3143 s->section = sym->section;
3144 s->value = sym->value + r->addend;
3147 len = strlen (syms[i]->name);
3148 memcpy (names, syms[i]->name, len + 1);
3150 /* Have udata.p point back to the original symbol this
3151 synthetic symbol was derived from. */
3152 s->udata.p = syms[i];
3159 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3163 bfd_vma glink_vma = 0, resolv_vma = 0;
3164 asection *dynamic, *glink = NULL, *relplt = NULL;
3167 if (!bfd_malloc_and_get_section (abfd, opd, &contents))
3171 free_contents_and_exit:
3179 for (i = secsymend; i < opdsymend; ++i)
3183 /* Ignore bogus symbols. */
3184 if (syms[i]->value > opd->size - 8)
3187 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3188 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3191 size += sizeof (asymbol);
3192 size += strlen (syms[i]->name) + 2;
3196 /* Get start of .glink stubs from DT_PPC64_GLINK. */
3198 && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL)
3200 bfd_byte *dynbuf, *extdyn, *extdynend;
3202 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
3204 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
3205 goto free_contents_and_exit;
3207 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
3208 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
3211 extdynend = extdyn + dynamic->size;
3212 for (; extdyn < extdynend; extdyn += extdynsize)
3214 Elf_Internal_Dyn dyn;
3215 (*swap_dyn_in) (abfd, extdyn, &dyn);
3217 if (dyn.d_tag == DT_NULL)
3220 if (dyn.d_tag == DT_PPC64_GLINK)
3222 /* The first glink stub starts at offset 32; see comment in
3223 ppc64_elf_finish_dynamic_sections. */
3224 glink_vma = dyn.d_un.d_val + 32;
3225 /* The .glink section usually does not survive the final
3226 link; search for the section (usually .text) where the
3227 glink stubs now reside. */
3228 glink = bfd_sections_find_if (abfd, section_covers_vma,
3239 /* Determine __glink trampoline by reading the relative branch
3240 from the first glink stub. */
3242 if (bfd_get_section_contents (abfd, glink, buf,
3243 glink_vma + 4 - glink->vma, 4))
3245 unsigned int insn = bfd_get_32 (abfd, buf);
3247 if ((insn & ~0x3fffffc) == 0)
3248 resolv_vma = glink_vma + 4 + (insn ^ 0x2000000) - 0x2000000;
3252 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3254 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
3257 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3258 if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE))
3259 goto free_contents_and_exit;
3261 plt_count = relplt->size / sizeof (Elf64_External_Rela);
3262 size += plt_count * sizeof (asymbol);
3264 p = relplt->relocation;
3265 for (i = 0; i < plt_count; i++, p++)
3267 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3269 size += sizeof ("+0x") - 1 + 16;
3274 s = *ret = bfd_malloc (size);
3276 goto free_contents_and_exit;
3278 names = (char *) (s + count + plt_count + (resolv_vma != 0));
3280 for (i = secsymend; i < opdsymend; ++i)
3284 if (syms[i]->value > opd->size - 8)
3287 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3288 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3292 asection *sec = abfd->sections;
3299 long mid = (lo + hi) >> 1;
3300 if (syms[mid]->section->vma < ent)
3302 else if (syms[mid]->section->vma > ent)
3306 sec = syms[mid]->section;
3311 if (lo >= hi && lo > codesecsym)
3312 sec = syms[lo - 1]->section;
3314 for (; sec != NULL; sec = sec->next)
3318 if ((sec->flags & SEC_ALLOC) == 0
3319 || (sec->flags & SEC_LOAD) == 0)
3321 if ((sec->flags & SEC_CODE) != 0)
3324 s->flags |= BSF_SYNTHETIC;
3325 s->value = ent - s->section->vma;
3328 len = strlen (syms[i]->name);
3329 memcpy (names, syms[i]->name, len + 1);
3331 /* Have udata.p point back to the original symbol this
3332 synthetic symbol was derived from. */
3333 s->udata.p = syms[i];
3339 if (glink != NULL && relplt != NULL)
3343 /* Add a symbol for the main glink trampoline. */
3344 memset (s, 0, sizeof *s);
3346 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
3348 s->value = resolv_vma - glink->vma;
3350 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3351 names += sizeof ("__glink_PLTresolve");
3356 /* FIXME: It would be very much nicer to put sym@plt on the
3357 stub rather than on the glink branch table entry. The
3358 objdump disassembler would then use a sensible symbol
3359 name on plt calls. The difficulty in doing so is
3360 a) finding the stubs, and,
3361 b) matching stubs against plt entries, and,
3362 c) there can be multiple stubs for a given plt entry.
3364 Solving (a) could be done by code scanning, but older
3365 ppc64 binaries used different stubs to current code.
3366 (b) is the tricky one since you need to known the toc
3367 pointer for at least one function that uses a pic stub to
3368 be able to calculate the plt address referenced.
3369 (c) means gdb would need to set multiple breakpoints (or
3370 find the glink branch itself) when setting breakpoints
3371 for pending shared library loads. */
3372 p = relplt->relocation;
3373 for (i = 0; i < plt_count; i++, p++)
3377 *s = **p->sym_ptr_ptr;
3378 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3379 we are defining a symbol, ensure one of them is set. */
3380 if ((s->flags & BSF_LOCAL) == 0)
3381 s->flags |= BSF_GLOBAL;
3382 s->flags |= BSF_SYNTHETIC;
3384 s->value = glink_vma - glink->vma;
3387 len = strlen ((*p->sym_ptr_ptr)->name);
3388 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3392 memcpy (names, "+0x", sizeof ("+0x") - 1);
3393 names += sizeof ("+0x") - 1;
3394 bfd_sprintf_vma (abfd, names, p->addend);
3395 names += strlen (names);
3397 memcpy (names, "@plt", sizeof ("@plt"));
3398 names += sizeof ("@plt");
3413 /* The following functions are specific to the ELF linker, while
3414 functions above are used generally. Those named ppc64_elf_* are
3415 called by the main ELF linker code. They appear in this file more
3416 or less in the order in which they are called. eg.
3417 ppc64_elf_check_relocs is called early in the link process,
3418 ppc64_elf_finish_dynamic_sections is one of the last functions
3421 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3422 functions have both a function code symbol and a function descriptor
3423 symbol. A call to foo in a relocatable object file looks like:
3430 The function definition in another object file might be:
3434 . .quad .TOC.@tocbase
3440 When the linker resolves the call during a static link, the branch
3441 unsurprisingly just goes to .foo and the .opd information is unused.
3442 If the function definition is in a shared library, things are a little
3443 different: The call goes via a plt call stub, the opd information gets
3444 copied to the plt, and the linker patches the nop.
3452 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
3453 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
3454 . std 2,40(1) # this is the general idea
3462 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3464 The "reloc ()" notation is supposed to indicate that the linker emits
3465 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3468 What are the difficulties here? Well, firstly, the relocations
3469 examined by the linker in check_relocs are against the function code
3470 sym .foo, while the dynamic relocation in the plt is emitted against
3471 the function descriptor symbol, foo. Somewhere along the line, we need
3472 to carefully copy dynamic link information from one symbol to the other.
3473 Secondly, the generic part of the elf linker will make .foo a dynamic
3474 symbol as is normal for most other backends. We need foo dynamic
3475 instead, at least for an application final link. However, when
3476 creating a shared library containing foo, we need to have both symbols
3477 dynamic so that references to .foo are satisfied during the early
3478 stages of linking. Otherwise the linker might decide to pull in a
3479 definition from some other object, eg. a static library.
3481 Update: As of August 2004, we support a new convention. Function
3482 calls may use the function descriptor symbol, ie. "bl foo". This
3483 behaves exactly as "bl .foo". */
3485 /* The linker needs to keep track of the number of relocs that it
3486 decides to copy as dynamic relocs in check_relocs for each symbol.
3487 This is so that it can later discard them if they are found to be
3488 unnecessary. We store the information in a field extending the
3489 regular ELF linker hash table. */
3491 struct ppc_dyn_relocs
3493 struct ppc_dyn_relocs *next;
3495 /* The input section of the reloc. */
3498 /* Total number of relocs copied for the input section. */
3499 bfd_size_type count;
3501 /* Number of pc-relative relocs copied for the input section. */
3502 bfd_size_type pc_count;
3505 /* Of those relocs that might be copied as dynamic relocs, this function
3506 selects those that must be copied when linking a shared library,
3507 even when the symbol is local. */
3510 must_be_dyn_reloc (struct bfd_link_info *info,
3511 enum elf_ppc64_reloc_type r_type)
3523 case R_PPC64_TPREL16:
3524 case R_PPC64_TPREL16_LO:
3525 case R_PPC64_TPREL16_HI:
3526 case R_PPC64_TPREL16_HA:
3527 case R_PPC64_TPREL16_DS:
3528 case R_PPC64_TPREL16_LO_DS:
3529 case R_PPC64_TPREL16_HIGHER:
3530 case R_PPC64_TPREL16_HIGHERA:
3531 case R_PPC64_TPREL16_HIGHEST:
3532 case R_PPC64_TPREL16_HIGHESTA:
3533 case R_PPC64_TPREL64:
3534 return !info->executable;
3538 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3539 copying dynamic variables from a shared lib into an app's dynbss
3540 section, and instead use a dynamic relocation to point into the
3541 shared lib. With code that gcc generates, it's vital that this be
3542 enabled; In the PowerPC64 ABI, the address of a function is actually
3543 the address of a function descriptor, which resides in the .opd
3544 section. gcc uses the descriptor directly rather than going via the
3545 GOT as some other ABI's do, which means that initialized function
3546 pointers must reference the descriptor. Thus, a function pointer
3547 initialized to the address of a function in a shared library will
3548 either require a copy reloc, or a dynamic reloc. Using a copy reloc
3549 redefines the function descriptor symbol to point to the copy. This
3550 presents a problem as a plt entry for that function is also
3551 initialized from the function descriptor symbol and the copy reloc
3552 may not be initialized first. */
3553 #define ELIMINATE_COPY_RELOCS 1
3555 /* Section name for stubs is the associated section name plus this
3557 #define STUB_SUFFIX ".stub"
3560 ppc_stub_long_branch:
3561 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3562 destination, but a 24 bit branch in a stub section will reach.
3565 ppc_stub_plt_branch:
3566 Similar to the above, but a 24 bit branch in the stub section won't
3567 reach its destination.
3568 . addis %r12,%r2,xxx@toc@ha
3569 . ld %r11,xxx@toc@l(%r12)
3574 Used to call a function in a shared library. If it so happens that
3575 the plt entry referenced crosses a 64k boundary, then an extra
3576 "addi %r12,%r12,xxx@toc@l" will be inserted before the "mtctr".
3577 . addis %r12,%r2,xxx@toc@ha
3579 . ld %r11,xxx+0@toc@l(%r12)
3581 . ld %r2,xxx+8@toc@l(%r12)
3582 . ld %r11,xxx+16@toc@l(%r12)
3585 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3586 code to adjust the value and save r2 to support multiple toc sections.
3587 A ppc_stub_long_branch with an r2 offset looks like:
3589 . addis %r2,%r2,off@ha
3590 . addi %r2,%r2,off@l
3593 A ppc_stub_plt_branch with an r2 offset looks like:
3595 . addis %r12,%r2,xxx@toc@ha
3596 . ld %r11,xxx@toc@l(%r12)
3597 . addis %r2,%r2,off@ha
3598 . addi %r2,%r2,off@l
3602 In cases where the "addis" instruction would add zero, the "addis" is
3603 omitted and following instructions modified slightly in some cases.
3606 enum ppc_stub_type {
3608 ppc_stub_long_branch,
3609 ppc_stub_long_branch_r2off,
3610 ppc_stub_plt_branch,
3611 ppc_stub_plt_branch_r2off,
3615 struct ppc_stub_hash_entry {
3617 /* Base hash table entry structure. */
3618 struct bfd_hash_entry root;
3620 enum ppc_stub_type stub_type;
3622 /* The stub section. */
3625 /* Offset within stub_sec of the beginning of this stub. */
3626 bfd_vma stub_offset;
3628 /* Given the symbol's value and its section we can determine its final
3629 value when building the stubs (so the stub knows where to jump. */
3630 bfd_vma target_value;
3631 asection *target_section;
3633 /* The symbol table entry, if any, that this was derived from. */
3634 struct ppc_link_hash_entry *h;
3635 struct plt_entry *plt_ent;
3637 /* And the reloc addend that this was derived from. */
3640 /* Where this stub is being called from, or, in the case of combined
3641 stub sections, the first input section in the group. */
3645 struct ppc_branch_hash_entry {
3647 /* Base hash table entry structure. */
3648 struct bfd_hash_entry root;
3650 /* Offset within branch lookup table. */
3651 unsigned int offset;
3653 /* Generation marker. */
3657 struct ppc_link_hash_entry
3659 struct elf_link_hash_entry elf;
3662 /* A pointer to the most recently used stub hash entry against this
3664 struct ppc_stub_hash_entry *stub_cache;
3666 /* A pointer to the next symbol starting with a '.' */
3667 struct ppc_link_hash_entry *next_dot_sym;
3670 /* Track dynamic relocs copied for this symbol. */
3671 struct ppc_dyn_relocs *dyn_relocs;
3673 /* Link between function code and descriptor symbols. */
3674 struct ppc_link_hash_entry *oh;
3676 /* Flag function code and descriptor symbols. */
3677 unsigned int is_func:1;
3678 unsigned int is_func_descriptor:1;
3679 unsigned int fake:1;
3681 /* Whether global opd/toc sym has been adjusted or not.
3682 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3683 should be set for all globals defined in any opd/toc section. */
3684 unsigned int adjust_done:1;
3686 /* Set if we twiddled this symbol to weak at some stage. */
3687 unsigned int was_undefined:1;
3689 /* Contexts in which symbol is used in the GOT (or TOC).
3690 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3691 corresponding relocs are encountered during check_relocs.
3692 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3693 indicate the corresponding GOT entry type is not needed.
3694 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3695 a TPREL one. We use a separate flag rather than setting TPREL
3696 just for convenience in distinguishing the two cases. */
3697 #define TLS_GD 1 /* GD reloc. */
3698 #define TLS_LD 2 /* LD reloc. */
3699 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3700 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3701 #define TLS_TLS 16 /* Any TLS reloc. */
3702 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3703 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3704 #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
3705 unsigned char tls_mask;
3708 /* ppc64 ELF linker hash table. */
3710 struct ppc_link_hash_table
3712 struct elf_link_hash_table elf;
3714 /* The stub hash table. */
3715 struct bfd_hash_table stub_hash_table;
3717 /* Another hash table for plt_branch stubs. */
3718 struct bfd_hash_table branch_hash_table;
3720 /* Linker stub bfd. */
3723 /* Linker call-backs. */
3724 asection * (*add_stub_section) (const char *, asection *);
3725 void (*layout_sections_again) (void);
3727 /* Array to keep track of which stub sections have been created, and
3728 information on stub grouping. */
3730 /* This is the section to which stubs in the group will be attached. */
3732 /* The stub section. */
3734 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3738 /* Temp used when calculating TOC pointers. */
3741 asection *toc_first_sec;
3743 /* Highest input section id. */
3746 /* Highest output section index. */
3749 /* Used when adding symbols. */
3750 struct ppc_link_hash_entry *dot_syms;
3752 /* List of input sections for each output section. */
3753 asection **input_list;
3755 /* Short-cuts to get to dynamic linker sections. */
3768 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3769 struct ppc_link_hash_entry *tls_get_addr;
3770 struct ppc_link_hash_entry *tls_get_addr_fd;
3772 /* The size of reliplt used by got entry relocs. */
3773 bfd_size_type got_reli_size;
3776 unsigned long stub_count[ppc_stub_plt_call];
3778 /* Number of stubs against global syms. */
3779 unsigned long stub_globals;
3781 /* Set if we should emit symbols for stubs. */
3782 unsigned int emit_stub_syms:1;
3784 /* Set if __tls_get_addr optimization should not be done. */
3785 unsigned int no_tls_get_addr_opt:1;
3787 /* Support for multiple toc sections. */
3788 unsigned int do_multi_toc:1;
3789 unsigned int multi_toc_needed:1;
3790 unsigned int second_toc_pass:1;
3793 unsigned int stub_error:1;
3795 /* Temp used by ppc64_elf_process_dot_syms. */
3796 unsigned int twiddled_syms:1;
3798 /* Incremented every time we size stubs. */
3799 unsigned int stub_iteration;
3801 /* Small local sym cache. */
3802 struct sym_cache sym_cache;
3805 /* Rename some of the generic section flags to better document how they
3808 /* Nonzero if this section has TLS related relocations. */
3809 #define has_tls_reloc sec_flg0
3811 /* Nonzero if this section has a call to __tls_get_addr. */
3812 #define has_tls_get_addr_call sec_flg1
3814 /* Nonzero if this section has any toc or got relocs. */
3815 #define has_toc_reloc sec_flg2
3817 /* Nonzero if this section has a call to another section that uses
3819 #define makes_toc_func_call sec_flg3
3821 /* Recursion protection when determining above flag. */
3822 #define call_check_in_progress sec_flg4
3823 #define call_check_done sec_flg5
3825 /* Get the ppc64 ELF linker hash table from a link_info structure. */
3827 #define ppc_hash_table(p) \
3828 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3829 == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL)
3831 #define ppc_stub_hash_lookup(table, string, create, copy) \
3832 ((struct ppc_stub_hash_entry *) \
3833 bfd_hash_lookup ((table), (string), (create), (copy)))
3835 #define ppc_branch_hash_lookup(table, string, create, copy) \
3836 ((struct ppc_branch_hash_entry *) \
3837 bfd_hash_lookup ((table), (string), (create), (copy)))
3839 /* Create an entry in the stub hash table. */
3841 static struct bfd_hash_entry *
3842 stub_hash_newfunc (struct bfd_hash_entry *entry,
3843 struct bfd_hash_table *table,
3846 /* Allocate the structure if it has not already been allocated by a
3850 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
3855 /* Call the allocation method of the superclass. */
3856 entry = bfd_hash_newfunc (entry, table, string);
3859 struct ppc_stub_hash_entry *eh;
3861 /* Initialize the local fields. */
3862 eh = (struct ppc_stub_hash_entry *) entry;
3863 eh->stub_type = ppc_stub_none;
3864 eh->stub_sec = NULL;
3865 eh->stub_offset = 0;
3866 eh->target_value = 0;
3867 eh->target_section = NULL;
3875 /* Create an entry in the branch hash table. */
3877 static struct bfd_hash_entry *
3878 branch_hash_newfunc (struct bfd_hash_entry *entry,
3879 struct bfd_hash_table *table,
3882 /* Allocate the structure if it has not already been allocated by a
3886 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3891 /* Call the allocation method of the superclass. */
3892 entry = bfd_hash_newfunc (entry, table, string);
3895 struct ppc_branch_hash_entry *eh;
3897 /* Initialize the local fields. */
3898 eh = (struct ppc_branch_hash_entry *) entry;
3906 /* Create an entry in a ppc64 ELF linker hash table. */
3908 static struct bfd_hash_entry *
3909 link_hash_newfunc (struct bfd_hash_entry *entry,
3910 struct bfd_hash_table *table,
3913 /* Allocate the structure if it has not already been allocated by a
3917 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3922 /* Call the allocation method of the superclass. */
3923 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3926 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3928 memset (&eh->u.stub_cache, 0,
3929 (sizeof (struct ppc_link_hash_entry)
3930 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
3932 /* When making function calls, old ABI code references function entry
3933 points (dot symbols), while new ABI code references the function
3934 descriptor symbol. We need to make any combination of reference and
3935 definition work together, without breaking archive linking.
3937 For a defined function "foo" and an undefined call to "bar":
3938 An old object defines "foo" and ".foo", references ".bar" (possibly
3940 A new object defines "foo" and references "bar".
3942 A new object thus has no problem with its undefined symbols being
3943 satisfied by definitions in an old object. On the other hand, the
3944 old object won't have ".bar" satisfied by a new object.
3946 Keep a list of newly added dot-symbols. */
3948 if (string[0] == '.')
3950 struct ppc_link_hash_table *htab;
3952 htab = (struct ppc_link_hash_table *) table;
3953 eh->u.next_dot_sym = htab->dot_syms;
3954 htab->dot_syms = eh;
3961 /* Create a ppc64 ELF linker hash table. */
3963 static struct bfd_link_hash_table *
3964 ppc64_elf_link_hash_table_create (bfd *abfd)
3966 struct ppc_link_hash_table *htab;
3967 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3969 htab = bfd_zmalloc (amt);
3973 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
3974 sizeof (struct ppc_link_hash_entry),
3981 /* Init the stub hash table too. */
3982 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
3983 sizeof (struct ppc_stub_hash_entry)))
3986 /* And the branch hash table. */
3987 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
3988 sizeof (struct ppc_branch_hash_entry)))
3991 /* Initializing two fields of the union is just cosmetic. We really
3992 only care about glist, but when compiled on a 32-bit host the
3993 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3994 debugger inspection of these fields look nicer. */
3995 htab->elf.init_got_refcount.refcount = 0;
3996 htab->elf.init_got_refcount.glist = NULL;
3997 htab->elf.init_plt_refcount.refcount = 0;
3998 htab->elf.init_plt_refcount.glist = NULL;
3999 htab->elf.init_got_offset.offset = 0;
4000 htab->elf.init_got_offset.glist = NULL;
4001 htab->elf.init_plt_offset.offset = 0;
4002 htab->elf.init_plt_offset.glist = NULL;
4004 return &htab->elf.root;
4007 /* Free the derived linker hash table. */
4010 ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
4012 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
4014 bfd_hash_table_free (&ret->stub_hash_table);
4015 bfd_hash_table_free (&ret->branch_hash_table);
4016 _bfd_generic_link_hash_table_free (hash);
4019 /* Satisfy the ELF linker by filling in some fields in our fake bfd. */
4022 ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
4024 struct ppc_link_hash_table *htab;
4026 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
4028 /* Always hook our dynamic sections into the first bfd, which is the
4029 linker created stub bfd. This ensures that the GOT header is at
4030 the start of the output TOC section. */
4031 htab = ppc_hash_table (info);
4034 htab->stub_bfd = abfd;
4035 htab->elf.dynobj = abfd;
4038 /* Build a name for an entry in the stub hash table. */
4041 ppc_stub_name (const asection *input_section,
4042 const asection *sym_sec,
4043 const struct ppc_link_hash_entry *h,
4044 const Elf_Internal_Rela *rel)
4049 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
4050 offsets from a sym as a branch target? In fact, we could
4051 probably assume the addend is always zero. */
4052 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
4056 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
4057 stub_name = bfd_malloc (len);
4058 if (stub_name == NULL)
4061 sprintf (stub_name, "%08x.%s+%x",
4062 input_section->id & 0xffffffff,
4063 h->elf.root.root.string,
4064 (int) rel->r_addend & 0xffffffff);
4068 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
4069 stub_name = bfd_malloc (len);
4070 if (stub_name == NULL)
4073 sprintf (stub_name, "%08x.%x:%x+%x",
4074 input_section->id & 0xffffffff,
4075 sym_sec->id & 0xffffffff,
4076 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
4077 (int) rel->r_addend & 0xffffffff);
4079 if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
4080 stub_name[len - 2] = 0;
4084 /* Look up an entry in the stub hash. Stub entries are cached because
4085 creating the stub name takes a bit of time. */
4087 static struct ppc_stub_hash_entry *
4088 ppc_get_stub_entry (const asection *input_section,
4089 const asection *sym_sec,
4090 struct ppc_link_hash_entry *h,
4091 const Elf_Internal_Rela *rel,
4092 struct ppc_link_hash_table *htab)
4094 struct ppc_stub_hash_entry *stub_entry;
4095 const asection *id_sec;
4097 /* If this input section is part of a group of sections sharing one
4098 stub section, then use the id of the first section in the group.
4099 Stub names need to include a section id, as there may well be
4100 more than one stub used to reach say, printf, and we need to
4101 distinguish between them. */
4102 id_sec = htab->stub_group[input_section->id].link_sec;
4104 if (h != NULL && h->u.stub_cache != NULL
4105 && h->u.stub_cache->h == h
4106 && h->u.stub_cache->id_sec == id_sec)
4108 stub_entry = h->u.stub_cache;
4114 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
4115 if (stub_name == NULL)
4118 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
4119 stub_name, FALSE, FALSE);
4121 h->u.stub_cache = stub_entry;
4129 /* Add a new stub entry to the stub hash. Not all fields of the new
4130 stub entry are initialised. */
4132 static struct ppc_stub_hash_entry *
4133 ppc_add_stub (const char *stub_name,
4135 struct ppc_link_hash_table *htab)
4139 struct ppc_stub_hash_entry *stub_entry;
4141 link_sec = htab->stub_group[section->id].link_sec;
4142 stub_sec = htab->stub_group[section->id].stub_sec;
4143 if (stub_sec == NULL)
4145 stub_sec = htab->stub_group[link_sec->id].stub_sec;
4146 if (stub_sec == NULL)
4152 namelen = strlen (link_sec->name);
4153 len = namelen + sizeof (STUB_SUFFIX);
4154 s_name = bfd_alloc (htab->stub_bfd, len);
4158 memcpy (s_name, link_sec->name, namelen);
4159 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
4160 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
4161 if (stub_sec == NULL)
4163 htab->stub_group[link_sec->id].stub_sec = stub_sec;
4165 htab->stub_group[section->id].stub_sec = stub_sec;
4168 /* Enter this entry into the linker stub hash table. */
4169 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
4171 if (stub_entry == NULL)
4173 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
4174 section->owner, stub_name);
4178 stub_entry->stub_sec = stub_sec;
4179 stub_entry->stub_offset = 0;
4180 stub_entry->id_sec = link_sec;
4184 /* Create sections for linker generated code. */
4187 create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
4189 struct ppc_link_hash_table *htab;
4192 htab = ppc_hash_table (info);
4196 /* Create .sfpr for code to save and restore fp regs. */
4197 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
4198 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4199 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
4201 if (htab->sfpr == NULL
4202 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
4205 /* Create .glink for lazy dynamic linking support. */
4206 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
4208 if (htab->glink == NULL
4209 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
4212 flags = SEC_ALLOC | SEC_LINKER_CREATED;
4213 htab->iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
4214 if (htab->iplt == NULL
4215 || ! bfd_set_section_alignment (dynobj, htab->iplt, 3))
4218 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4219 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4220 htab->reliplt = bfd_make_section_anyway_with_flags (dynobj,
4223 if (htab->reliplt == NULL
4224 || ! bfd_set_section_alignment (dynobj, htab->reliplt, 3))
4227 /* Create branch lookup table for plt_branch stubs. */
4228 flags = (SEC_ALLOC | SEC_LOAD
4229 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4230 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
4232 if (htab->brlt == NULL
4233 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
4239 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4240 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4241 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
4244 if (htab->relbrlt == NULL
4245 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
4251 /* Create .got and .rela.got sections in ABFD, and .got in dynobj if
4252 not already done. */
4255 create_got_section (bfd *abfd, struct bfd_link_info *info)
4257 asection *got, *relgot;
4259 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4261 if (!is_ppc64_elf (abfd))
4268 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
4271 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
4276 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4277 | SEC_LINKER_CREATED);
4279 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4281 || !bfd_set_section_alignment (abfd, got, 3))
4284 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
4285 flags | SEC_READONLY);
4287 || ! bfd_set_section_alignment (abfd, relgot, 3))
4290 ppc64_elf_tdata (abfd)->got = got;
4291 ppc64_elf_tdata (abfd)->relgot = relgot;
4295 /* Create the dynamic sections, and set up shortcuts. */
4298 ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
4300 struct ppc_link_hash_table *htab;
4302 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
4305 htab = ppc_hash_table (info);
4310 htab->got = bfd_get_section_by_name (dynobj, ".got");
4311 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
4312 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
4313 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
4315 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
4317 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4318 || (!info->shared && !htab->relbss))
4324 /* Follow indirect and warning symbol links. */
4326 static inline struct bfd_link_hash_entry *
4327 follow_link (struct bfd_link_hash_entry *h)
4329 while (h->type == bfd_link_hash_indirect
4330 || h->type == bfd_link_hash_warning)
4335 static inline struct elf_link_hash_entry *
4336 elf_follow_link (struct elf_link_hash_entry *h)
4338 return (struct elf_link_hash_entry *) follow_link (&h->root);
4341 static inline struct ppc_link_hash_entry *
4342 ppc_follow_link (struct ppc_link_hash_entry *h)
4344 return (struct ppc_link_hash_entry *) follow_link (&h->elf.root);
4347 /* Merge PLT info on FROM with that on TO. */
4350 move_plt_plist (struct ppc_link_hash_entry *from,
4351 struct ppc_link_hash_entry *to)
4353 if (from->elf.plt.plist != NULL)
4355 if (to->elf.plt.plist != NULL)
4357 struct plt_entry **entp;
4358 struct plt_entry *ent;
4360 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
4362 struct plt_entry *dent;
4364 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
4365 if (dent->addend == ent->addend)
4367 dent->plt.refcount += ent->plt.refcount;
4374 *entp = to->elf.plt.plist;
4377 to->elf.plt.plist = from->elf.plt.plist;
4378 from->elf.plt.plist = NULL;
4382 /* Copy the extra info we tack onto an elf_link_hash_entry. */
4385 ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
4386 struct elf_link_hash_entry *dir,
4387 struct elf_link_hash_entry *ind)
4389 struct ppc_link_hash_entry *edir, *eind;
4391 edir = (struct ppc_link_hash_entry *) dir;
4392 eind = (struct ppc_link_hash_entry *) ind;
4394 /* Copy over any dynamic relocs we may have on the indirect sym. */
4395 if (eind->dyn_relocs != NULL)
4397 if (edir->dyn_relocs != NULL)
4399 struct ppc_dyn_relocs **pp;
4400 struct ppc_dyn_relocs *p;
4402 /* Add reloc counts against the indirect sym to the direct sym
4403 list. Merge any entries against the same section. */
4404 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
4406 struct ppc_dyn_relocs *q;
4408 for (q = edir->dyn_relocs; q != NULL; q = q->next)
4409 if (q->sec == p->sec)
4411 q->pc_count += p->pc_count;
4412 q->count += p->count;
4419 *pp = edir->dyn_relocs;
4422 edir->dyn_relocs = eind->dyn_relocs;
4423 eind->dyn_relocs = NULL;
4426 edir->is_func |= eind->is_func;
4427 edir->is_func_descriptor |= eind->is_func_descriptor;
4428 edir->tls_mask |= eind->tls_mask;
4429 if (eind->oh != NULL)
4430 edir->oh = ppc_follow_link (eind->oh);
4432 /* If called to transfer flags for a weakdef during processing
4433 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4434 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4435 if (!(ELIMINATE_COPY_RELOCS
4436 && eind->elf.root.type != bfd_link_hash_indirect
4437 && edir->elf.dynamic_adjusted))
4438 edir->elf.non_got_ref |= eind->elf.non_got_ref;
4440 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4441 edir->elf.ref_regular |= eind->elf.ref_regular;
4442 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4443 edir->elf.needs_plt |= eind->elf.needs_plt;
4445 /* If we were called to copy over info for a weak sym, that's all. */
4446 if (eind->elf.root.type != bfd_link_hash_indirect)
4449 /* Copy over got entries that we may have already seen to the
4450 symbol which just became indirect. */
4451 if (eind->elf.got.glist != NULL)
4453 if (edir->elf.got.glist != NULL)
4455 struct got_entry **entp;
4456 struct got_entry *ent;
4458 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4460 struct got_entry *dent;
4462 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4463 if (dent->addend == ent->addend
4464 && dent->owner == ent->owner
4465 && dent->tls_type == ent->tls_type)
4467 dent->got.refcount += ent->got.refcount;
4474 *entp = edir->elf.got.glist;
4477 edir->elf.got.glist = eind->elf.got.glist;
4478 eind->elf.got.glist = NULL;
4481 /* And plt entries. */
4482 move_plt_plist (eind, edir);
4484 if (eind->elf.dynindx != -1)
4486 if (edir->elf.dynindx != -1)
4487 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4488 edir->elf.dynstr_index);
4489 edir->elf.dynindx = eind->elf.dynindx;
4490 edir->elf.dynstr_index = eind->elf.dynstr_index;
4491 eind->elf.dynindx = -1;
4492 eind->elf.dynstr_index = 0;
4496 /* Find the function descriptor hash entry from the given function code
4497 hash entry FH. Link the entries via their OH fields. */
4499 static struct ppc_link_hash_entry *
4500 lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
4502 struct ppc_link_hash_entry *fdh = fh->oh;
4506 const char *fd_name = fh->elf.root.root.string + 1;
4508 fdh = (struct ppc_link_hash_entry *)
4509 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
4513 fdh->is_func_descriptor = 1;
4519 return ppc_follow_link (fdh);
4522 /* Make a fake function descriptor sym for the code sym FH. */
4524 static struct ppc_link_hash_entry *
4525 make_fdh (struct bfd_link_info *info,
4526 struct ppc_link_hash_entry *fh)
4530 struct bfd_link_hash_entry *bh;
4531 struct ppc_link_hash_entry *fdh;
4533 abfd = fh->elf.root.u.undef.abfd;
4534 newsym = bfd_make_empty_symbol (abfd);
4535 newsym->name = fh->elf.root.root.string + 1;
4536 newsym->section = bfd_und_section_ptr;
4538 newsym->flags = BSF_WEAK;
4541 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4542 newsym->flags, newsym->section,
4543 newsym->value, NULL, FALSE, FALSE,
4547 fdh = (struct ppc_link_hash_entry *) bh;
4548 fdh->elf.non_elf = 0;
4550 fdh->is_func_descriptor = 1;
4557 /* Fix function descriptor symbols defined in .opd sections to be
4561 ppc64_elf_add_symbol_hook (bfd *ibfd,
4562 struct bfd_link_info *info,
4563 Elf_Internal_Sym *isym,
4564 const char **name ATTRIBUTE_UNUSED,
4565 flagword *flags ATTRIBUTE_UNUSED,
4567 bfd_vma *value ATTRIBUTE_UNUSED)
4569 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
4571 if ((ibfd->flags & DYNAMIC) == 0)
4572 elf_tdata (info->output_bfd)->has_ifunc_symbols = TRUE;
4574 else if (ELF_ST_TYPE (isym->st_info) == STT_FUNC)
4576 else if (*sec != NULL
4577 && strcmp ((*sec)->name, ".opd") == 0)
4578 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
4583 /* This function makes an old ABI object reference to ".bar" cause the
4584 inclusion of a new ABI object archive that defines "bar".
4585 NAME is a symbol defined in an archive. Return a symbol in the hash
4586 table that might be satisfied by the archive symbols. */
4588 static struct elf_link_hash_entry *
4589 ppc64_elf_archive_symbol_lookup (bfd *abfd,
4590 struct bfd_link_info *info,
4593 struct elf_link_hash_entry *h;
4597 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
4599 /* Don't return this sym if it is a fake function descriptor
4600 created by add_symbol_adjust. */
4601 && !(h->root.type == bfd_link_hash_undefweak
4602 && ((struct ppc_link_hash_entry *) h)->fake))
4608 len = strlen (name);
4609 dot_name = bfd_alloc (abfd, len + 2);
4610 if (dot_name == NULL)
4611 return (struct elf_link_hash_entry *) 0 - 1;
4613 memcpy (dot_name + 1, name, len + 1);
4614 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4615 bfd_release (abfd, dot_name);
4619 /* This function satisfies all old ABI object references to ".bar" if a
4620 new ABI object defines "bar". Well, at least, undefined dot symbols
4621 are made weak. This stops later archive searches from including an
4622 object if we already have a function descriptor definition. It also
4623 prevents the linker complaining about undefined symbols.
4624 We also check and correct mismatched symbol visibility here. The
4625 most restrictive visibility of the function descriptor and the
4626 function entry symbol is used. */
4629 add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
4631 struct ppc_link_hash_table *htab;
4632 struct ppc_link_hash_entry *fdh;
4634 if (eh->elf.root.type == bfd_link_hash_indirect)
4637 if (eh->elf.root.type == bfd_link_hash_warning)
4638 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
4640 if (eh->elf.root.root.string[0] != '.')
4643 htab = ppc_hash_table (info);
4647 fdh = lookup_fdh (eh, htab);
4650 if (!info->relocatable
4651 && (eh->elf.root.type == bfd_link_hash_undefined
4652 || eh->elf.root.type == bfd_link_hash_undefweak)
4653 && eh->elf.ref_regular)
4655 /* Make an undefweak function descriptor sym, which is enough to
4656 pull in an --as-needed shared lib, but won't cause link
4657 errors. Archives are handled elsewhere. */
4658 fdh = make_fdh (info, eh);
4661 fdh->elf.ref_regular = 1;
4666 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4667 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4668 if (entry_vis < descr_vis)
4669 fdh->elf.other += entry_vis - descr_vis;
4670 else if (entry_vis > descr_vis)
4671 eh->elf.other += descr_vis - entry_vis;
4673 if ((fdh->elf.root.type == bfd_link_hash_defined
4674 || fdh->elf.root.type == bfd_link_hash_defweak)
4675 && eh->elf.root.type == bfd_link_hash_undefined)
4677 eh->elf.root.type = bfd_link_hash_undefweak;
4678 eh->was_undefined = 1;
4679 htab->twiddled_syms = 1;
4686 /* Process list of dot-symbols we made in link_hash_newfunc. */
4689 ppc64_elf_process_dot_syms (bfd *ibfd, struct bfd_link_info *info)
4691 struct ppc_link_hash_table *htab;
4692 struct ppc_link_hash_entry **p, *eh;
4694 if (!is_ppc64_elf (info->output_bfd))
4696 htab = ppc_hash_table (info);
4700 if (is_ppc64_elf (ibfd))
4702 p = &htab->dot_syms;
4703 while ((eh = *p) != NULL)
4706 if (!add_symbol_adjust (eh, info))
4708 p = &eh->u.next_dot_sym;
4712 /* Clear the list for non-ppc64 input files. */
4713 p = &htab->dot_syms;
4714 while ((eh = *p) != NULL)
4717 p = &eh->u.next_dot_sym;
4720 /* We need to fix the undefs list for any syms we have twiddled to
4722 if (htab->twiddled_syms)
4724 bfd_link_repair_undef_list (&htab->elf.root);
4725 htab->twiddled_syms = 0;
4730 /* Undo hash table changes when an --as-needed input file is determined
4731 not to be needed. */
4734 ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED,
4735 struct bfd_link_info *info)
4737 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4742 htab->dot_syms = NULL;
4746 static struct plt_entry **
4747 update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4748 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
4750 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
4751 struct plt_entry **local_plt;
4752 unsigned char *local_got_tls_masks;
4754 if (local_got_ents == NULL)
4756 bfd_size_type size = symtab_hdr->sh_info;
4758 size *= (sizeof (*local_got_ents)
4759 + sizeof (*local_plt)
4760 + sizeof (*local_got_tls_masks));
4761 local_got_ents = bfd_zalloc (abfd, size);
4762 if (local_got_ents == NULL)
4764 elf_local_got_ents (abfd) = local_got_ents;
4767 if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
4769 struct got_entry *ent;
4771 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
4772 if (ent->addend == r_addend
4773 && ent->owner == abfd
4774 && ent->tls_type == tls_type)
4778 bfd_size_type amt = sizeof (*ent);
4779 ent = bfd_alloc (abfd, amt);
4782 ent->next = local_got_ents[r_symndx];
4783 ent->addend = r_addend;
4785 ent->tls_type = tls_type;
4786 ent->is_indirect = FALSE;
4787 ent->got.refcount = 0;
4788 local_got_ents[r_symndx] = ent;
4790 ent->got.refcount += 1;
4793 local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
4794 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
4795 local_got_tls_masks[r_symndx] |= tls_type;
4797 return local_plt + r_symndx;
4801 update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend)
4803 struct plt_entry *ent;
4805 for (ent = *plist; ent != NULL; ent = ent->next)
4806 if (ent->addend == addend)
4810 bfd_size_type amt = sizeof (*ent);
4811 ent = bfd_alloc (abfd, amt);
4815 ent->addend = addend;
4816 ent->plt.refcount = 0;
4819 ent->plt.refcount += 1;
4824 is_branch_reloc (enum elf_ppc64_reloc_type r_type)
4826 return (r_type == R_PPC64_REL24
4827 || r_type == R_PPC64_REL14
4828 || r_type == R_PPC64_REL14_BRTAKEN
4829 || r_type == R_PPC64_REL14_BRNTAKEN
4830 || r_type == R_PPC64_ADDR24
4831 || r_type == R_PPC64_ADDR14
4832 || r_type == R_PPC64_ADDR14_BRTAKEN
4833 || r_type == R_PPC64_ADDR14_BRNTAKEN);
4836 /* Look through the relocs for a section during the first phase, and
4837 calculate needed space in the global offset table, procedure
4838 linkage table, and dynamic reloc sections. */
4841 ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4842 asection *sec, const Elf_Internal_Rela *relocs)
4844 struct ppc_link_hash_table *htab;
4845 Elf_Internal_Shdr *symtab_hdr;
4846 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4847 const Elf_Internal_Rela *rel;
4848 const Elf_Internal_Rela *rel_end;
4850 asection **opd_sym_map;
4851 struct elf_link_hash_entry *tga, *dottga;
4853 if (info->relocatable)
4856 /* Don't do anything special with non-loaded, non-alloced sections.
4857 In particular, any relocs in such sections should not affect GOT
4858 and PLT reference counting (ie. we don't allow them to create GOT
4859 or PLT entries), there's no possibility or desire to optimize TLS
4860 relocs, and there's not much point in propagating relocs to shared
4861 libs that the dynamic linker won't relocate. */
4862 if ((sec->flags & SEC_ALLOC) == 0)
4865 BFD_ASSERT (is_ppc64_elf (abfd));
4867 htab = ppc_hash_table (info);
4871 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4872 FALSE, FALSE, TRUE);
4873 dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
4874 FALSE, FALSE, TRUE);
4875 symtab_hdr = &elf_symtab_hdr (abfd);
4877 sym_hashes = elf_sym_hashes (abfd);
4878 sym_hashes_end = (sym_hashes
4879 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4880 - symtab_hdr->sh_info);
4884 if (strcmp (sec->name, ".opd") == 0)
4886 /* Garbage collection needs some extra help with .opd sections.
4887 We don't want to necessarily keep everything referenced by
4888 relocs in .opd, as that would keep all functions. Instead,
4889 if we reference an .opd symbol (a function descriptor), we
4890 want to keep the function code symbol's section. This is
4891 easy for global symbols, but for local syms we need to keep
4892 information about the associated function section. */
4895 amt = sec->size * sizeof (*opd_sym_map) / 8;
4896 opd_sym_map = bfd_zalloc (abfd, amt);
4897 if (opd_sym_map == NULL)
4899 ppc64_elf_section_data (sec)->u.opd.func_sec = opd_sym_map;
4900 BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal);
4901 ppc64_elf_section_data (sec)->sec_type = sec_opd;
4904 if (htab->sfpr == NULL
4905 && !create_linkage_sections (htab->elf.dynobj, info))
4908 rel_end = relocs + sec->reloc_count;
4909 for (rel = relocs; rel < rel_end; rel++)
4911 unsigned long r_symndx;
4912 struct elf_link_hash_entry *h;
4913 enum elf_ppc64_reloc_type r_type;
4915 struct _ppc64_elf_section_data *ppc64_sec;
4916 struct plt_entry **ifunc;
4918 r_symndx = ELF64_R_SYM (rel->r_info);
4919 if (r_symndx < symtab_hdr->sh_info)
4923 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4924 h = elf_follow_link (h);
4931 if (h->type == STT_GNU_IFUNC)
4934 ifunc = &h->plt.plist;
4939 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4944 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
4946 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4947 rel->r_addend, PLT_IFUNC);
4952 r_type = ELF64_R_TYPE (rel->r_info);
4953 if (is_branch_reloc (r_type))
4955 if (h != NULL && (h == tga || h == dottga))
4958 && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
4959 || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
4960 /* We have a new-style __tls_get_addr call with a marker
4964 /* Mark this section as having an old-style call. */
4965 sec->has_tls_get_addr_call = 1;
4968 /* STT_GNU_IFUNC symbols must have a PLT entry. */
4970 && !update_plt_info (abfd, ifunc, rel->r_addend))
4978 /* These special tls relocs tie a call to __tls_get_addr with
4979 its parameter symbol. */
4982 case R_PPC64_GOT_TLSLD16:
4983 case R_PPC64_GOT_TLSLD16_LO:
4984 case R_PPC64_GOT_TLSLD16_HI:
4985 case R_PPC64_GOT_TLSLD16_HA:
4986 tls_type = TLS_TLS | TLS_LD;
4989 case R_PPC64_GOT_TLSGD16:
4990 case R_PPC64_GOT_TLSGD16_LO:
4991 case R_PPC64_GOT_TLSGD16_HI:
4992 case R_PPC64_GOT_TLSGD16_HA:
4993 tls_type = TLS_TLS | TLS_GD;
4996 case R_PPC64_GOT_TPREL16_DS:
4997 case R_PPC64_GOT_TPREL16_LO_DS:
4998 case R_PPC64_GOT_TPREL16_HI:
4999 case R_PPC64_GOT_TPREL16_HA:
5000 if (!info->executable)
5001 info->flags |= DF_STATIC_TLS;
5002 tls_type = TLS_TLS | TLS_TPREL;
5005 case R_PPC64_GOT_DTPREL16_DS:
5006 case R_PPC64_GOT_DTPREL16_LO_DS:
5007 case R_PPC64_GOT_DTPREL16_HI:
5008 case R_PPC64_GOT_DTPREL16_HA:
5009 tls_type = TLS_TLS | TLS_DTPREL;
5011 sec->has_tls_reloc = 1;
5015 case R_PPC64_GOT16_DS:
5016 case R_PPC64_GOT16_HA:
5017 case R_PPC64_GOT16_HI:
5018 case R_PPC64_GOT16_LO:
5019 case R_PPC64_GOT16_LO_DS:
5020 /* This symbol requires a global offset table entry. */
5021 sec->has_toc_reloc = 1;
5022 if (r_type == R_PPC64_GOT_TLSLD16
5023 || r_type == R_PPC64_GOT_TLSGD16
5024 || r_type == R_PPC64_GOT_TPREL16_DS
5025 || r_type == R_PPC64_GOT_DTPREL16_DS
5026 || r_type == R_PPC64_GOT16
5027 || r_type == R_PPC64_GOT16_DS)
5029 htab->do_multi_toc = 1;
5030 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
5033 if (ppc64_elf_tdata (abfd)->got == NULL
5034 && !create_got_section (abfd, info))
5039 struct ppc_link_hash_entry *eh;
5040 struct got_entry *ent;
5042 eh = (struct ppc_link_hash_entry *) h;
5043 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
5044 if (ent->addend == rel->r_addend
5045 && ent->owner == abfd
5046 && ent->tls_type == tls_type)
5050 bfd_size_type amt = sizeof (*ent);
5051 ent = bfd_alloc (abfd, amt);
5054 ent->next = eh->elf.got.glist;
5055 ent->addend = rel->r_addend;
5057 ent->tls_type = tls_type;
5058 ent->is_indirect = FALSE;
5059 ent->got.refcount = 0;
5060 eh->elf.got.glist = ent;
5062 ent->got.refcount += 1;
5063 eh->tls_mask |= tls_type;
5066 /* This is a global offset table entry for a local symbol. */
5067 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5068 rel->r_addend, tls_type))
5072 case R_PPC64_PLT16_HA:
5073 case R_PPC64_PLT16_HI:
5074 case R_PPC64_PLT16_LO:
5077 /* This symbol requires a procedure linkage table entry. We
5078 actually build the entry in adjust_dynamic_symbol,
5079 because this might be a case of linking PIC code without
5080 linking in any dynamic objects, in which case we don't
5081 need to generate a procedure linkage table after all. */
5084 /* It does not make sense to have a procedure linkage
5085 table entry for a local symbol. */
5086 bfd_set_error (bfd_error_bad_value);
5091 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5094 if (h->root.root.string[0] == '.'
5095 && h->root.root.string[1] != '\0')
5096 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5100 /* The following relocations don't need to propagate the
5101 relocation if linking a shared object since they are
5102 section relative. */
5103 case R_PPC64_SECTOFF:
5104 case R_PPC64_SECTOFF_LO:
5105 case R_PPC64_SECTOFF_HI:
5106 case R_PPC64_SECTOFF_HA:
5107 case R_PPC64_SECTOFF_DS:
5108 case R_PPC64_SECTOFF_LO_DS:
5109 case R_PPC64_DTPREL16:
5110 case R_PPC64_DTPREL16_LO:
5111 case R_PPC64_DTPREL16_HI:
5112 case R_PPC64_DTPREL16_HA:
5113 case R_PPC64_DTPREL16_DS:
5114 case R_PPC64_DTPREL16_LO_DS:
5115 case R_PPC64_DTPREL16_HIGHER:
5116 case R_PPC64_DTPREL16_HIGHERA:
5117 case R_PPC64_DTPREL16_HIGHEST:
5118 case R_PPC64_DTPREL16_HIGHESTA:
5123 case R_PPC64_REL16_LO:
5124 case R_PPC64_REL16_HI:
5125 case R_PPC64_REL16_HA:
5129 case R_PPC64_TOC16_DS:
5130 htab->do_multi_toc = 1;
5131 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
5132 case R_PPC64_TOC16_LO:
5133 case R_PPC64_TOC16_HI:
5134 case R_PPC64_TOC16_HA:
5135 case R_PPC64_TOC16_LO_DS:
5136 sec->has_toc_reloc = 1;
5139 /* This relocation describes the C++ object vtable hierarchy.
5140 Reconstruct it for later use during GC. */
5141 case R_PPC64_GNU_VTINHERIT:
5142 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
5146 /* This relocation describes which C++ vtable entries are actually
5147 used. Record for later use during GC. */
5148 case R_PPC64_GNU_VTENTRY:
5149 BFD_ASSERT (h != NULL);
5151 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
5156 case R_PPC64_REL14_BRTAKEN:
5157 case R_PPC64_REL14_BRNTAKEN:
5159 asection *dest = NULL;
5161 /* Heuristic: If jumping outside our section, chances are
5162 we are going to need a stub. */
5165 /* If the sym is weak it may be overridden later, so
5166 don't assume we know where a weak sym lives. */
5167 if (h->root.type == bfd_link_hash_defined)
5168 dest = h->root.u.def.section;
5172 Elf_Internal_Sym *isym;
5174 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5179 dest = bfd_section_from_elf_index (abfd, isym->st_shndx);
5183 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
5188 if (h != NULL && ifunc == NULL)
5190 /* We may need a .plt entry if the function this reloc
5191 refers to is in a shared lib. */
5192 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5195 if (h->root.root.string[0] == '.'
5196 && h->root.root.string[1] != '\0')
5197 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5198 if (h == tga || h == dottga)
5199 sec->has_tls_reloc = 1;
5203 case R_PPC64_TPREL64:
5204 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
5205 if (!info->executable)
5206 info->flags |= DF_STATIC_TLS;
5209 case R_PPC64_DTPMOD64:
5210 if (rel + 1 < rel_end
5211 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
5212 && rel[1].r_offset == rel->r_offset + 8)
5213 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
5215 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
5218 case R_PPC64_DTPREL64:
5219 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
5221 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
5222 && rel[-1].r_offset == rel->r_offset - 8)
5223 /* This is the second reloc of a dtpmod, dtprel pair.
5224 Don't mark with TLS_DTPREL. */
5228 sec->has_tls_reloc = 1;
5231 struct ppc_link_hash_entry *eh;
5232 eh = (struct ppc_link_hash_entry *) h;
5233 eh->tls_mask |= tls_type;
5236 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5237 rel->r_addend, tls_type))
5240 ppc64_sec = ppc64_elf_section_data (sec);
5241 if (ppc64_sec->sec_type != sec_toc)
5245 /* One extra to simplify get_tls_mask. */
5246 amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned);
5247 ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt);
5248 if (ppc64_sec->u.toc.symndx == NULL)
5250 amt = sec->size * sizeof (bfd_vma) / 8;
5251 ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt);
5252 if (ppc64_sec->u.toc.add == NULL)
5254 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
5255 ppc64_sec->sec_type = sec_toc;
5257 BFD_ASSERT (rel->r_offset % 8 == 0);
5258 ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx;
5259 ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend;
5261 /* Mark the second slot of a GD or LD entry.
5262 -1 to indicate GD and -2 to indicate LD. */
5263 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
5264 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1;
5265 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
5266 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2;
5269 case R_PPC64_TPREL16:
5270 case R_PPC64_TPREL16_LO:
5271 case R_PPC64_TPREL16_HI:
5272 case R_PPC64_TPREL16_HA:
5273 case R_PPC64_TPREL16_DS:
5274 case R_PPC64_TPREL16_LO_DS:
5275 case R_PPC64_TPREL16_HIGHER:
5276 case R_PPC64_TPREL16_HIGHERA:
5277 case R_PPC64_TPREL16_HIGHEST:
5278 case R_PPC64_TPREL16_HIGHESTA:
5281 if (!info->executable)
5282 info->flags |= DF_STATIC_TLS;
5287 case R_PPC64_ADDR64:
5288 if (opd_sym_map != NULL
5289 && rel + 1 < rel_end
5290 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
5294 if (h->root.root.string[0] == '.'
5295 && h->root.root.string[1] != 0
5296 && lookup_fdh ((struct ppc_link_hash_entry *) h, htab))
5299 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5304 Elf_Internal_Sym *isym;
5306 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5311 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5312 if (s != NULL && s != sec)
5313 opd_sym_map[rel->r_offset / 8] = s;
5321 case R_PPC64_ADDR14:
5322 case R_PPC64_ADDR14_BRNTAKEN:
5323 case R_PPC64_ADDR14_BRTAKEN:
5324 case R_PPC64_ADDR16:
5325 case R_PPC64_ADDR16_DS:
5326 case R_PPC64_ADDR16_HA:
5327 case R_PPC64_ADDR16_HI:
5328 case R_PPC64_ADDR16_HIGHER:
5329 case R_PPC64_ADDR16_HIGHERA:
5330 case R_PPC64_ADDR16_HIGHEST:
5331 case R_PPC64_ADDR16_HIGHESTA:
5332 case R_PPC64_ADDR16_LO:
5333 case R_PPC64_ADDR16_LO_DS:
5334 case R_PPC64_ADDR24:
5335 case R_PPC64_ADDR32:
5336 case R_PPC64_UADDR16:
5337 case R_PPC64_UADDR32:
5338 case R_PPC64_UADDR64:
5340 if (h != NULL && !info->shared)
5341 /* We may need a copy reloc. */
5344 /* Don't propagate .opd relocs. */
5345 if (NO_OPD_RELOCS && opd_sym_map != NULL)
5348 /* If we are creating a shared library, and this is a reloc
5349 against a global symbol, or a non PC relative reloc
5350 against a local symbol, then we need to copy the reloc
5351 into the shared library. However, if we are linking with
5352 -Bsymbolic, we do not need to copy a reloc against a
5353 global symbol which is defined in an object we are
5354 including in the link (i.e., DEF_REGULAR is set). At
5355 this point we have not seen all the input files, so it is
5356 possible that DEF_REGULAR is not set now but will be set
5357 later (it is never cleared). In case of a weak definition,
5358 DEF_REGULAR may be cleared later by a strong definition in
5359 a shared library. We account for that possibility below by
5360 storing information in the dyn_relocs field of the hash
5361 table entry. A similar situation occurs when creating
5362 shared libraries and symbol visibility changes render the
5365 If on the other hand, we are creating an executable, we
5366 may need to keep relocations for symbols satisfied by a
5367 dynamic library if we manage to avoid copy relocs for the
5371 && (must_be_dyn_reloc (info, r_type)
5373 && (! info->symbolic
5374 || h->root.type == bfd_link_hash_defweak
5375 || !h->def_regular))))
5376 || (ELIMINATE_COPY_RELOCS
5379 && (h->root.type == bfd_link_hash_defweak
5380 || !h->def_regular))
5384 struct ppc_dyn_relocs *p;
5385 struct ppc_dyn_relocs **head;
5387 /* We must copy these reloc types into the output file.
5388 Create a reloc section in dynobj and make room for
5392 sreloc = _bfd_elf_make_dynamic_reloc_section
5393 (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
5399 /* If this is a global symbol, we count the number of
5400 relocations we need for this symbol. */
5403 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
5407 /* Track dynamic relocs needed for local syms too.
5408 We really need local syms available to do this
5412 Elf_Internal_Sym *isym;
5414 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5419 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5423 vpp = &elf_section_data (s)->local_dynrel;
5424 head = (struct ppc_dyn_relocs **) vpp;
5428 if (p == NULL || p->sec != sec)
5430 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5441 if (!must_be_dyn_reloc (info, r_type))
5454 /* OFFSET in OPD_SEC specifies a function descriptor. Return the address
5455 of the code entry point, and its section. */
5458 opd_entry_value (asection *opd_sec,
5460 asection **code_sec,
5463 bfd *opd_bfd = opd_sec->owner;
5464 Elf_Internal_Rela *relocs;
5465 Elf_Internal_Rela *lo, *hi, *look;
5468 /* No relocs implies we are linking a --just-symbols object. */
5469 if (opd_sec->reloc_count == 0)
5471 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
5472 return (bfd_vma) -1;
5474 if (code_sec != NULL)
5476 asection *sec, *likely = NULL;
5477 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
5479 && (sec->flags & SEC_LOAD) != 0
5480 && (sec->flags & SEC_ALLOC) != 0)
5485 if (code_off != NULL)
5486 *code_off = val - likely->vma;
5492 BFD_ASSERT (is_ppc64_elf (opd_bfd));
5494 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
5496 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
5498 /* Go find the opd reloc at the sym address. */
5500 BFD_ASSERT (lo != NULL);
5501 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
5505 look = lo + (hi - lo) / 2;
5506 if (look->r_offset < offset)
5508 else if (look->r_offset > offset)
5512 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd);
5514 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
5515 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
5517 unsigned long symndx = ELF64_R_SYM (look->r_info);
5520 if (symndx < symtab_hdr->sh_info)
5522 Elf_Internal_Sym *sym;
5524 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
5527 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
5528 symtab_hdr->sh_info,
5529 0, NULL, NULL, NULL);
5532 symtab_hdr->contents = (bfd_byte *) sym;
5536 val = sym->st_value;
5537 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
5538 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
5542 struct elf_link_hash_entry **sym_hashes;
5543 struct elf_link_hash_entry *rh;
5545 sym_hashes = elf_sym_hashes (opd_bfd);
5546 rh = sym_hashes[symndx - symtab_hdr->sh_info];
5547 rh = elf_follow_link (rh);
5548 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
5549 || rh->root.type == bfd_link_hash_defweak);
5550 val = rh->root.u.def.value;
5551 sec = rh->root.u.def.section;
5553 val += look->r_addend;
5554 if (code_off != NULL)
5556 if (code_sec != NULL)
5558 if (sec != NULL && sec->output_section != NULL)
5559 val += sec->output_section->vma + sec->output_offset;
5568 /* If FDH is a function descriptor symbol, return the associated code
5569 entry symbol if it is defined. Return NULL otherwise. */
5571 static struct ppc_link_hash_entry *
5572 defined_code_entry (struct ppc_link_hash_entry *fdh)
5574 if (fdh->is_func_descriptor)
5576 struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh);
5577 if (fh->elf.root.type == bfd_link_hash_defined
5578 || fh->elf.root.type == bfd_link_hash_defweak)
5584 /* If FH is a function code entry symbol, return the associated
5585 function descriptor symbol if it is defined. Return NULL otherwise. */
5587 static struct ppc_link_hash_entry *
5588 defined_func_desc (struct ppc_link_hash_entry *fh)
5591 && fh->oh->is_func_descriptor)
5593 struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh);
5594 if (fdh->elf.root.type == bfd_link_hash_defined
5595 || fdh->elf.root.type == bfd_link_hash_defweak)
5601 /* Mark all our entry sym sections, both opd and code section. */
5604 ppc64_elf_gc_keep (struct bfd_link_info *info)
5606 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5607 struct bfd_sym_chain *sym;
5612 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
5614 struct ppc_link_hash_entry *eh, *fh;
5617 eh = (struct ppc_link_hash_entry *)
5618 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE);
5621 if (eh->elf.root.type != bfd_link_hash_defined
5622 && eh->elf.root.type != bfd_link_hash_defweak)
5625 fh = defined_code_entry (eh);
5628 sec = fh->elf.root.u.def.section;
5629 sec->flags |= SEC_KEEP;
5631 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5632 && opd_entry_value (eh->elf.root.u.def.section,
5633 eh->elf.root.u.def.value,
5634 &sec, NULL) != (bfd_vma) -1)
5635 sec->flags |= SEC_KEEP;
5637 sec = eh->elf.root.u.def.section;
5638 sec->flags |= SEC_KEEP;
5642 /* Mark sections containing dynamically referenced symbols. When
5643 building shared libraries, we must assume that any visible symbol is
5647 ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
5649 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5650 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
5651 struct ppc_link_hash_entry *fdh;
5653 if (eh->elf.root.type == bfd_link_hash_warning)
5654 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
5656 /* Dynamic linking info is on the func descriptor sym. */
5657 fdh = defined_func_desc (eh);
5661 if ((eh->elf.root.type == bfd_link_hash_defined
5662 || eh->elf.root.type == bfd_link_hash_defweak)
5663 && (eh->elf.ref_dynamic
5664 || (!info->executable
5665 && eh->elf.def_regular
5666 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
5667 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN)))
5670 struct ppc_link_hash_entry *fh;
5672 eh->elf.root.u.def.section->flags |= SEC_KEEP;
5674 /* Function descriptor syms cause the associated
5675 function code sym section to be marked. */
5676 fh = defined_code_entry (eh);
5679 code_sec = fh->elf.root.u.def.section;
5680 code_sec->flags |= SEC_KEEP;
5682 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5683 && opd_entry_value (eh->elf.root.u.def.section,
5684 eh->elf.root.u.def.value,
5685 &code_sec, NULL) != (bfd_vma) -1)
5686 code_sec->flags |= SEC_KEEP;
5692 /* Return the section that should be marked against GC for a given
5696 ppc64_elf_gc_mark_hook (asection *sec,
5697 struct bfd_link_info *info,
5698 Elf_Internal_Rela *rel,
5699 struct elf_link_hash_entry *h,
5700 Elf_Internal_Sym *sym)
5704 /* Syms return NULL if we're marking .opd, so we avoid marking all
5705 function sections, as all functions are referenced in .opd. */
5707 if (get_opd_info (sec) != NULL)
5712 enum elf_ppc64_reloc_type r_type;
5713 struct ppc_link_hash_entry *eh, *fh, *fdh;
5715 r_type = ELF64_R_TYPE (rel->r_info);
5718 case R_PPC64_GNU_VTINHERIT:
5719 case R_PPC64_GNU_VTENTRY:
5723 switch (h->root.type)
5725 case bfd_link_hash_defined:
5726 case bfd_link_hash_defweak:
5727 eh = (struct ppc_link_hash_entry *) h;
5728 fdh = defined_func_desc (eh);
5732 /* Function descriptor syms cause the associated
5733 function code sym section to be marked. */
5734 fh = defined_code_entry (eh);
5737 /* They also mark their opd section. */
5738 eh->elf.root.u.def.section->gc_mark = 1;
5740 rsec = fh->elf.root.u.def.section;
5742 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5743 && opd_entry_value (eh->elf.root.u.def.section,
5744 eh->elf.root.u.def.value,
5745 &rsec, NULL) != (bfd_vma) -1)
5746 eh->elf.root.u.def.section->gc_mark = 1;
5748 rsec = h->root.u.def.section;
5751 case bfd_link_hash_common:
5752 rsec = h->root.u.c.p->section;
5756 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5762 struct _opd_sec_data *opd;
5764 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
5765 opd = get_opd_info (rsec);
5766 if (opd != NULL && opd->func_sec != NULL)
5770 rsec = opd->func_sec[(sym->st_value + rel->r_addend) / 8];
5777 /* Update the .got, .plt. and dynamic reloc reference counts for the
5778 section being removed. */
5781 ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5782 asection *sec, const Elf_Internal_Rela *relocs)
5784 struct ppc_link_hash_table *htab;
5785 Elf_Internal_Shdr *symtab_hdr;
5786 struct elf_link_hash_entry **sym_hashes;
5787 struct got_entry **local_got_ents;
5788 const Elf_Internal_Rela *rel, *relend;
5790 if (info->relocatable)
5793 if ((sec->flags & SEC_ALLOC) == 0)
5796 elf_section_data (sec)->local_dynrel = NULL;
5798 htab = ppc_hash_table (info);
5802 symtab_hdr = &elf_symtab_hdr (abfd);
5803 sym_hashes = elf_sym_hashes (abfd);
5804 local_got_ents = elf_local_got_ents (abfd);
5806 relend = relocs + sec->reloc_count;
5807 for (rel = relocs; rel < relend; rel++)
5809 unsigned long r_symndx;
5810 enum elf_ppc64_reloc_type r_type;
5811 struct elf_link_hash_entry *h = NULL;
5812 unsigned char tls_type = 0;
5814 r_symndx = ELF64_R_SYM (rel->r_info);
5815 r_type = ELF64_R_TYPE (rel->r_info);
5816 if (r_symndx >= symtab_hdr->sh_info)
5818 struct ppc_link_hash_entry *eh;
5819 struct ppc_dyn_relocs **pp;
5820 struct ppc_dyn_relocs *p;
5822 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5823 h = elf_follow_link (h);
5824 eh = (struct ppc_link_hash_entry *) h;
5826 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5829 /* Everything must go for SEC. */
5835 if (is_branch_reloc (r_type))
5837 struct plt_entry **ifunc = NULL;
5840 if (h->type == STT_GNU_IFUNC)
5841 ifunc = &h->plt.plist;
5843 else if (local_got_ents != NULL)
5845 struct plt_entry **local_plt = (struct plt_entry **)
5846 (local_got_ents + symtab_hdr->sh_info);
5847 unsigned char *local_got_tls_masks = (unsigned char *)
5848 (local_plt + symtab_hdr->sh_info);
5849 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
5850 ifunc = local_plt + r_symndx;
5854 struct plt_entry *ent;
5856 for (ent = *ifunc; ent != NULL; ent = ent->next)
5857 if (ent->addend == rel->r_addend)
5861 if (ent->plt.refcount > 0)
5862 ent->plt.refcount -= 1;
5869 case R_PPC64_GOT_TLSLD16:
5870 case R_PPC64_GOT_TLSLD16_LO:
5871 case R_PPC64_GOT_TLSLD16_HI:
5872 case R_PPC64_GOT_TLSLD16_HA:
5873 tls_type = TLS_TLS | TLS_LD;
5876 case R_PPC64_GOT_TLSGD16:
5877 case R_PPC64_GOT_TLSGD16_LO:
5878 case R_PPC64_GOT_TLSGD16_HI:
5879 case R_PPC64_GOT_TLSGD16_HA:
5880 tls_type = TLS_TLS | TLS_GD;
5883 case R_PPC64_GOT_TPREL16_DS:
5884 case R_PPC64_GOT_TPREL16_LO_DS:
5885 case R_PPC64_GOT_TPREL16_HI:
5886 case R_PPC64_GOT_TPREL16_HA:
5887 tls_type = TLS_TLS | TLS_TPREL;
5890 case R_PPC64_GOT_DTPREL16_DS:
5891 case R_PPC64_GOT_DTPREL16_LO_DS:
5892 case R_PPC64_GOT_DTPREL16_HI:
5893 case R_PPC64_GOT_DTPREL16_HA:
5894 tls_type = TLS_TLS | TLS_DTPREL;
5898 case R_PPC64_GOT16_DS:
5899 case R_PPC64_GOT16_HA:
5900 case R_PPC64_GOT16_HI:
5901 case R_PPC64_GOT16_LO:
5902 case R_PPC64_GOT16_LO_DS:
5905 struct got_entry *ent;
5910 ent = local_got_ents[r_symndx];
5912 for (; ent != NULL; ent = ent->next)
5913 if (ent->addend == rel->r_addend
5914 && ent->owner == abfd
5915 && ent->tls_type == tls_type)
5919 if (ent->got.refcount > 0)
5920 ent->got.refcount -= 1;
5924 case R_PPC64_PLT16_HA:
5925 case R_PPC64_PLT16_HI:
5926 case R_PPC64_PLT16_LO:
5930 case R_PPC64_REL14_BRNTAKEN:
5931 case R_PPC64_REL14_BRTAKEN:
5935 struct plt_entry *ent;
5937 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5938 if (ent->addend == rel->r_addend)
5940 if (ent != NULL && ent->plt.refcount > 0)
5941 ent->plt.refcount -= 1;
5952 /* The maximum size of .sfpr. */
5953 #define SFPR_MAX (218*4)
5955 struct sfpr_def_parms
5957 const char name[12];
5958 unsigned char lo, hi;
5959 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
5960 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
5963 /* Auto-generate _save*, _rest* functions in .sfpr. */
5966 sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
5968 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5970 size_t len = strlen (parm->name);
5971 bfd_boolean writing = FALSE;
5977 memcpy (sym, parm->name, len);
5980 for (i = parm->lo; i <= parm->hi; i++)
5982 struct elf_link_hash_entry *h;
5984 sym[len + 0] = i / 10 + '0';
5985 sym[len + 1] = i % 10 + '0';
5986 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
5990 h->root.type = bfd_link_hash_defined;
5991 h->root.u.def.section = htab->sfpr;
5992 h->root.u.def.value = htab->sfpr->size;
5995 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
5997 if (htab->sfpr->contents == NULL)
5999 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
6000 if (htab->sfpr->contents == NULL)
6006 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
6008 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
6010 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
6011 htab->sfpr->size = p - htab->sfpr->contents;
6019 savegpr0 (bfd *abfd, bfd_byte *p, int r)
6021 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6026 savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
6028 p = savegpr0 (abfd, p, r);
6029 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
6031 bfd_put_32 (abfd, BLR, p);
6036 restgpr0 (bfd *abfd, bfd_byte *p, int r)
6038 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6043 restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
6045 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
6047 p = restgpr0 (abfd, p, r);
6048 bfd_put_32 (abfd, MTLR_R0, p);
6052 p = restgpr0 (abfd, p, 30);
6053 p = restgpr0 (abfd, p, 31);
6055 bfd_put_32 (abfd, BLR, p);
6060 savegpr1 (bfd *abfd, bfd_byte *p, int r)
6062 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6067 savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
6069 p = savegpr1 (abfd, p, r);
6070 bfd_put_32 (abfd, BLR, p);
6075 restgpr1 (bfd *abfd, bfd_byte *p, int r)
6077 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6082 restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
6084 p = restgpr1 (abfd, p, r);
6085 bfd_put_32 (abfd, BLR, p);
6090 savefpr (bfd *abfd, bfd_byte *p, int r)
6092 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6097 savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
6099 p = savefpr (abfd, p, r);
6100 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
6102 bfd_put_32 (abfd, BLR, p);
6107 restfpr (bfd *abfd, bfd_byte *p, int r)
6109 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6114 restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
6116 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
6118 p = restfpr (abfd, p, r);
6119 bfd_put_32 (abfd, MTLR_R0, p);
6123 p = restfpr (abfd, p, 30);
6124 p = restfpr (abfd, p, 31);
6126 bfd_put_32 (abfd, BLR, p);
6131 savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
6133 p = savefpr (abfd, p, r);
6134 bfd_put_32 (abfd, BLR, p);
6139 restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
6141 p = restfpr (abfd, p, r);
6142 bfd_put_32 (abfd, BLR, p);
6147 savevr (bfd *abfd, bfd_byte *p, int r)
6149 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6151 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
6156 savevr_tail (bfd *abfd, bfd_byte *p, int r)
6158 p = savevr (abfd, p, r);
6159 bfd_put_32 (abfd, BLR, p);
6164 restvr (bfd *abfd, bfd_byte *p, int r)
6166 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6168 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
6173 restvr_tail (bfd *abfd, bfd_byte *p, int r)
6175 p = restvr (abfd, p, r);
6176 bfd_put_32 (abfd, BLR, p);
6180 /* Called via elf_link_hash_traverse to transfer dynamic linking
6181 information on function code symbol entries to their corresponding
6182 function descriptor symbol entries. */
6185 func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
6187 struct bfd_link_info *info;
6188 struct ppc_link_hash_table *htab;
6189 struct plt_entry *ent;
6190 struct ppc_link_hash_entry *fh;
6191 struct ppc_link_hash_entry *fdh;
6192 bfd_boolean force_local;
6194 fh = (struct ppc_link_hash_entry *) h;
6195 if (fh->elf.root.type == bfd_link_hash_indirect)
6198 if (fh->elf.root.type == bfd_link_hash_warning)
6199 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
6202 htab = ppc_hash_table (info);
6206 /* Resolve undefined references to dot-symbols as the value
6207 in the function descriptor, if we have one in a regular object.
6208 This is to satisfy cases like ".quad .foo". Calls to functions
6209 in dynamic objects are handled elsewhere. */
6210 if (fh->elf.root.type == bfd_link_hash_undefweak
6211 && fh->was_undefined
6212 && (fdh = defined_func_desc (fh)) != NULL
6213 && get_opd_info (fdh->elf.root.u.def.section) != NULL
6214 && opd_entry_value (fdh->elf.root.u.def.section,
6215 fdh->elf.root.u.def.value,
6216 &fh->elf.root.u.def.section,
6217 &fh->elf.root.u.def.value) != (bfd_vma) -1)
6219 fh->elf.root.type = fdh->elf.root.type;
6220 fh->elf.forced_local = 1;
6221 fh->elf.def_regular = fdh->elf.def_regular;
6222 fh->elf.def_dynamic = fdh->elf.def_dynamic;
6225 /* If this is a function code symbol, transfer dynamic linking
6226 information to the function descriptor symbol. */
6230 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
6231 if (ent->plt.refcount > 0)
6234 || fh->elf.root.root.string[0] != '.'
6235 || fh->elf.root.root.string[1] == '\0')
6238 /* Find the corresponding function descriptor symbol. Create it
6239 as undefined if necessary. */
6241 fdh = lookup_fdh (fh, htab);
6243 && !info->executable
6244 && (fh->elf.root.type == bfd_link_hash_undefined
6245 || fh->elf.root.type == bfd_link_hash_undefweak))
6247 fdh = make_fdh (info, fh);
6252 /* Fake function descriptors are made undefweak. If the function
6253 code symbol is strong undefined, make the fake sym the same.
6254 If the function code symbol is defined, then force the fake
6255 descriptor local; We can't support overriding of symbols in a
6256 shared library on a fake descriptor. */
6260 && fdh->elf.root.type == bfd_link_hash_undefweak)
6262 if (fh->elf.root.type == bfd_link_hash_undefined)
6264 fdh->elf.root.type = bfd_link_hash_undefined;
6265 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
6267 else if (fh->elf.root.type == bfd_link_hash_defined
6268 || fh->elf.root.type == bfd_link_hash_defweak)
6270 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
6275 && !fdh->elf.forced_local
6276 && (!info->executable
6277 || fdh->elf.def_dynamic
6278 || fdh->elf.ref_dynamic
6279 || (fdh->elf.root.type == bfd_link_hash_undefweak
6280 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
6282 if (fdh->elf.dynindx == -1)
6283 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
6285 fdh->elf.ref_regular |= fh->elf.ref_regular;
6286 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
6287 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
6288 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
6289 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
6291 move_plt_plist (fh, fdh);
6292 fdh->elf.needs_plt = 1;
6294 fdh->is_func_descriptor = 1;
6299 /* Now that the info is on the function descriptor, clear the
6300 function code sym info. Any function code syms for which we
6301 don't have a definition in a regular file, we force local.
6302 This prevents a shared library from exporting syms that have
6303 been imported from another library. Function code syms that
6304 are really in the library we must leave global to prevent the
6305 linker dragging in a definition from a static library. */
6306 force_local = (!fh->elf.def_regular
6308 || !fdh->elf.def_regular
6309 || fdh->elf.forced_local);
6310 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
6315 /* Called near the start of bfd_elf_size_dynamic_sections. We use
6316 this hook to a) provide some gcc support functions, and b) transfer
6317 dynamic linking information gathered so far on function code symbol
6318 entries, to their corresponding function descriptor symbol entries. */
6321 ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
6322 struct bfd_link_info *info)
6324 struct ppc_link_hash_table *htab;
6326 const struct sfpr_def_parms funcs[] =
6328 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
6329 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
6330 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
6331 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
6332 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
6333 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
6334 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
6335 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
6336 { "._savef", 14, 31, savefpr, savefpr1_tail },
6337 { "._restf", 14, 31, restfpr, restfpr1_tail },
6338 { "_savevr_", 20, 31, savevr, savevr_tail },
6339 { "_restvr_", 20, 31, restvr, restvr_tail }
6342 htab = ppc_hash_table (info);
6346 if (htab->sfpr == NULL)
6347 /* We don't have any relocs. */
6350 /* Provide any missing _save* and _rest* functions. */
6351 htab->sfpr->size = 0;
6352 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
6353 if (!sfpr_define (info, &funcs[i]))
6356 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
6358 if (htab->sfpr->size == 0)
6359 htab->sfpr->flags |= SEC_EXCLUDE;
6364 /* Adjust a symbol defined by a dynamic object and referenced by a
6365 regular object. The current definition is in some section of the
6366 dynamic object, but we're not including those sections. We have to
6367 change the definition to something the rest of the link can
6371 ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
6372 struct elf_link_hash_entry *h)
6374 struct ppc_link_hash_table *htab;
6377 htab = ppc_hash_table (info);
6381 /* Deal with function syms. */
6382 if (h->type == STT_FUNC
6383 || h->type == STT_GNU_IFUNC
6386 /* Clear procedure linkage table information for any symbol that
6387 won't need a .plt entry. */
6388 struct plt_entry *ent;
6389 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6390 if (ent->plt.refcount > 0)
6393 || (h->type != STT_GNU_IFUNC
6394 && (SYMBOL_CALLS_LOCAL (info, h)
6395 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
6396 && h->root.type == bfd_link_hash_undefweak))))
6398 h->plt.plist = NULL;
6403 h->plt.plist = NULL;
6405 /* If this is a weak symbol, and there is a real definition, the
6406 processor independent code will have arranged for us to see the
6407 real definition first, and we can just use the same value. */
6408 if (h->u.weakdef != NULL)
6410 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
6411 || h->u.weakdef->root.type == bfd_link_hash_defweak);
6412 h->root.u.def.section = h->u.weakdef->root.u.def.section;
6413 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6414 if (ELIMINATE_COPY_RELOCS)
6415 h->non_got_ref = h->u.weakdef->non_got_ref;
6419 /* If we are creating a shared library, we must presume that the
6420 only references to the symbol are via the global offset table.
6421 For such cases we need not do anything here; the relocations will
6422 be handled correctly by relocate_section. */
6426 /* If there are no references to this symbol that do not use the
6427 GOT, we don't need to generate a copy reloc. */
6428 if (!h->non_got_ref)
6431 /* Don't generate a copy reloc for symbols defined in the executable. */
6432 if (!h->def_dynamic || !h->ref_regular || h->def_regular)
6435 if (ELIMINATE_COPY_RELOCS)
6437 struct ppc_link_hash_entry * eh;
6438 struct ppc_dyn_relocs *p;
6440 eh = (struct ppc_link_hash_entry *) h;
6441 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6443 s = p->sec->output_section;
6444 if (s != NULL && (s->flags & SEC_READONLY) != 0)
6448 /* If we didn't find any dynamic relocs in read-only sections, then
6449 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
6457 if (h->plt.plist != NULL)
6459 /* We should never get here, but unfortunately there are versions
6460 of gcc out there that improperly (for this ABI) put initialized
6461 function pointers, vtable refs and suchlike in read-only
6462 sections. Allow them to proceed, but warn that this might
6463 break at runtime. */
6464 (*_bfd_error_handler)
6465 (_("copy reloc against `%s' requires lazy plt linking; "
6466 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
6467 h->root.root.string);
6470 /* This is a reference to a symbol defined by a dynamic object which
6471 is not a function. */
6475 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
6476 h->root.root.string);
6480 /* We must allocate the symbol in our .dynbss section, which will
6481 become part of the .bss section of the executable. There will be
6482 an entry for this symbol in the .dynsym section. The dynamic
6483 object will contain position independent code, so all references
6484 from the dynamic object to this symbol will go through the global
6485 offset table. The dynamic linker will use the .dynsym entry to
6486 determine the address it must put in the global offset table, so
6487 both the dynamic object and the regular object will refer to the
6488 same memory location for the variable. */
6490 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
6491 to copy the initial value out of the dynamic object and into the
6492 runtime process image. We need to remember the offset into the
6493 .rela.bss section we are going to use. */
6494 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
6496 htab->relbss->size += sizeof (Elf64_External_Rela);
6502 return _bfd_elf_adjust_dynamic_copy (h, s);
6505 /* If given a function descriptor symbol, hide both the function code
6506 sym and the descriptor. */
6508 ppc64_elf_hide_symbol (struct bfd_link_info *info,
6509 struct elf_link_hash_entry *h,
6510 bfd_boolean force_local)
6512 struct ppc_link_hash_entry *eh;
6513 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
6515 eh = (struct ppc_link_hash_entry *) h;
6516 if (eh->is_func_descriptor)
6518 struct ppc_link_hash_entry *fh = eh->oh;
6523 struct ppc_link_hash_table *htab;
6526 /* We aren't supposed to use alloca in BFD because on
6527 systems which do not have alloca the version in libiberty
6528 calls xmalloc, which might cause the program to crash
6529 when it runs out of memory. This function doesn't have a
6530 return status, so there's no way to gracefully return an
6531 error. So cheat. We know that string[-1] can be safely
6532 accessed; It's either a string in an ELF string table,
6533 or allocated in an objalloc structure. */
6535 p = eh->elf.root.root.string - 1;
6538 htab = ppc_hash_table (info);
6542 fh = (struct ppc_link_hash_entry *)
6543 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
6546 /* Unfortunately, if it so happens that the string we were
6547 looking for was allocated immediately before this string,
6548 then we overwrote the string terminator. That's the only
6549 reason the lookup should fail. */
6552 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
6553 while (q >= eh->elf.root.root.string && *q == *p)
6555 if (q < eh->elf.root.root.string && *p == '.')
6556 fh = (struct ppc_link_hash_entry *)
6557 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
6566 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
6571 get_sym_h (struct elf_link_hash_entry **hp,
6572 Elf_Internal_Sym **symp,
6574 unsigned char **tls_maskp,
6575 Elf_Internal_Sym **locsymsp,
6576 unsigned long r_symndx,
6579 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
6581 if (r_symndx >= symtab_hdr->sh_info)
6583 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
6584 struct elf_link_hash_entry *h;
6586 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6587 h = elf_follow_link (h);
6595 if (symsecp != NULL)
6597 asection *symsec = NULL;
6598 if (h->root.type == bfd_link_hash_defined
6599 || h->root.type == bfd_link_hash_defweak)
6600 symsec = h->root.u.def.section;
6604 if (tls_maskp != NULL)
6606 struct ppc_link_hash_entry *eh;
6608 eh = (struct ppc_link_hash_entry *) h;
6609 *tls_maskp = &eh->tls_mask;
6614 Elf_Internal_Sym *sym;
6615 Elf_Internal_Sym *locsyms = *locsymsp;
6617 if (locsyms == NULL)
6619 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
6620 if (locsyms == NULL)
6621 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
6622 symtab_hdr->sh_info,
6623 0, NULL, NULL, NULL);
6624 if (locsyms == NULL)
6626 *locsymsp = locsyms;
6628 sym = locsyms + r_symndx;
6636 if (symsecp != NULL)
6637 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
6639 if (tls_maskp != NULL)
6641 struct got_entry **lgot_ents;
6642 unsigned char *tls_mask;
6645 lgot_ents = elf_local_got_ents (ibfd);
6646 if (lgot_ents != NULL)
6648 struct plt_entry **local_plt = (struct plt_entry **)
6649 (lgot_ents + symtab_hdr->sh_info);
6650 unsigned char *lgot_masks = (unsigned char *)
6651 (local_plt + symtab_hdr->sh_info);
6652 tls_mask = &lgot_masks[r_symndx];
6654 *tls_maskp = tls_mask;
6660 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
6661 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
6662 type suitable for optimization, and 1 otherwise. */
6665 get_tls_mask (unsigned char **tls_maskp,
6666 unsigned long *toc_symndx,
6667 bfd_vma *toc_addend,
6668 Elf_Internal_Sym **locsymsp,
6669 const Elf_Internal_Rela *rel,
6672 unsigned long r_symndx;
6674 struct elf_link_hash_entry *h;
6675 Elf_Internal_Sym *sym;
6679 r_symndx = ELF64_R_SYM (rel->r_info);
6680 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
6683 if ((*tls_maskp != NULL && **tls_maskp != 0)
6685 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
6688 /* Look inside a TOC section too. */
6691 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
6692 off = h->root.u.def.value;
6695 off = sym->st_value;
6696 off += rel->r_addend;
6697 BFD_ASSERT (off % 8 == 0);
6698 r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8];
6699 next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1];
6700 if (toc_symndx != NULL)
6701 *toc_symndx = r_symndx;
6702 if (toc_addend != NULL)
6703 *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8];
6704 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
6707 || ((h->root.type == bfd_link_hash_defined
6708 || h->root.type == bfd_link_hash_defweak)
6709 && !h->def_dynamic))
6710 && (next_r == -1 || next_r == -2))
6715 /* Adjust all global syms defined in opd sections. In gcc generated
6716 code for the old ABI, these will already have been done. */
6719 adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
6721 struct ppc_link_hash_entry *eh;
6723 struct _opd_sec_data *opd;
6725 if (h->root.type == bfd_link_hash_indirect)
6728 if (h->root.type == bfd_link_hash_warning)
6729 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6731 if (h->root.type != bfd_link_hash_defined
6732 && h->root.type != bfd_link_hash_defweak)
6735 eh = (struct ppc_link_hash_entry *) h;
6736 if (eh->adjust_done)
6739 sym_sec = eh->elf.root.u.def.section;
6740 opd = get_opd_info (sym_sec);
6741 if (opd != NULL && opd->adjust != NULL)
6743 long adjust = opd->adjust[eh->elf.root.u.def.value / 8];
6746 /* This entry has been deleted. */
6747 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
6750 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
6751 if (elf_discarded_section (dsec))
6753 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
6757 eh->elf.root.u.def.value = 0;
6758 eh->elf.root.u.def.section = dsec;
6761 eh->elf.root.u.def.value += adjust;
6762 eh->adjust_done = 1;
6767 /* Handles decrementing dynamic reloc counts for the reloc specified by
6768 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
6769 have already been determined. */
6772 dec_dynrel_count (bfd_vma r_info,
6774 struct bfd_link_info *info,
6775 Elf_Internal_Sym **local_syms,
6776 struct elf_link_hash_entry *h,
6779 enum elf_ppc64_reloc_type r_type;
6780 struct ppc_dyn_relocs *p;
6781 struct ppc_dyn_relocs **pp;
6783 /* Can this reloc be dynamic? This switch, and later tests here
6784 should be kept in sync with the code in check_relocs. */
6785 r_type = ELF64_R_TYPE (r_info);
6791 case R_PPC64_TPREL16:
6792 case R_PPC64_TPREL16_LO:
6793 case R_PPC64_TPREL16_HI:
6794 case R_PPC64_TPREL16_HA:
6795 case R_PPC64_TPREL16_DS:
6796 case R_PPC64_TPREL16_LO_DS:
6797 case R_PPC64_TPREL16_HIGHER:
6798 case R_PPC64_TPREL16_HIGHERA:
6799 case R_PPC64_TPREL16_HIGHEST:
6800 case R_PPC64_TPREL16_HIGHESTA:
6804 case R_PPC64_TPREL64:
6805 case R_PPC64_DTPMOD64:
6806 case R_PPC64_DTPREL64:
6807 case R_PPC64_ADDR64:
6811 case R_PPC64_ADDR14:
6812 case R_PPC64_ADDR14_BRNTAKEN:
6813 case R_PPC64_ADDR14_BRTAKEN:
6814 case R_PPC64_ADDR16:
6815 case R_PPC64_ADDR16_DS:
6816 case R_PPC64_ADDR16_HA:
6817 case R_PPC64_ADDR16_HI:
6818 case R_PPC64_ADDR16_HIGHER:
6819 case R_PPC64_ADDR16_HIGHERA:
6820 case R_PPC64_ADDR16_HIGHEST:
6821 case R_PPC64_ADDR16_HIGHESTA:
6822 case R_PPC64_ADDR16_LO:
6823 case R_PPC64_ADDR16_LO_DS:
6824 case R_PPC64_ADDR24:
6825 case R_PPC64_ADDR32:
6826 case R_PPC64_UADDR16:
6827 case R_PPC64_UADDR32:
6828 case R_PPC64_UADDR64:
6833 if (local_syms != NULL)
6835 unsigned long r_symndx;
6836 Elf_Internal_Sym *sym;
6837 bfd *ibfd = sec->owner;
6839 r_symndx = ELF64_R_SYM (r_info);
6840 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
6845 && (must_be_dyn_reloc (info, r_type)
6848 || h->root.type == bfd_link_hash_defweak
6849 || !h->def_regular))))
6850 || (ELIMINATE_COPY_RELOCS
6853 && (h->root.type == bfd_link_hash_defweak
6854 || !h->def_regular)))
6860 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
6863 if (sym_sec != NULL)
6865 void *vpp = &elf_section_data (sym_sec)->local_dynrel;
6866 pp = (struct ppc_dyn_relocs **) vpp;
6870 void *vpp = &elf_section_data (sec)->local_dynrel;
6871 pp = (struct ppc_dyn_relocs **) vpp;
6874 /* elf_gc_sweep may have already removed all dyn relocs associated
6875 with local syms for a given section. Don't report a dynreloc
6881 while ((p = *pp) != NULL)
6885 if (!must_be_dyn_reloc (info, r_type))
6895 (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"),
6897 bfd_set_error (bfd_error_bad_value);
6901 /* Remove unused Official Procedure Descriptor entries. Currently we
6902 only remove those associated with functions in discarded link-once
6903 sections, or weakly defined functions that have been overridden. It
6904 would be possible to remove many more entries for statically linked
6908 ppc64_elf_edit_opd (struct bfd_link_info *info, bfd_boolean non_overlapping)
6911 bfd_boolean some_edited = FALSE;
6912 asection *need_pad = NULL;
6914 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6917 Elf_Internal_Rela *relstart, *rel, *relend;
6918 Elf_Internal_Shdr *symtab_hdr;
6919 Elf_Internal_Sym *local_syms;
6920 struct elf_link_hash_entry **sym_hashes;
6922 struct _opd_sec_data *opd;
6923 bfd_boolean need_edit, add_aux_fields;
6924 bfd_size_type cnt_16b = 0;
6926 sec = bfd_get_section_by_name (ibfd, ".opd");
6927 if (sec == NULL || sec->size == 0)
6930 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6933 if (sec->output_section == bfd_abs_section_ptr)
6936 /* Look through the section relocs. */
6937 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6941 symtab_hdr = &elf_symtab_hdr (ibfd);
6942 sym_hashes = elf_sym_hashes (ibfd);
6944 /* Read the relocations. */
6945 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
6947 if (relstart == NULL)
6950 /* First run through the relocs to check they are sane, and to
6951 determine whether we need to edit this opd section. */
6955 relend = relstart + sec->reloc_count;
6956 for (rel = relstart; rel < relend; )
6958 enum elf_ppc64_reloc_type r_type;
6959 unsigned long r_symndx;
6961 struct elf_link_hash_entry *h;
6962 Elf_Internal_Sym *sym;
6964 /* .opd contains a regular array of 16 or 24 byte entries. We're
6965 only interested in the reloc pointing to a function entry
6967 if (rel->r_offset != offset
6968 || rel + 1 >= relend
6969 || (rel + 1)->r_offset != offset + 8)
6971 /* If someone messes with .opd alignment then after a
6972 "ld -r" we might have padding in the middle of .opd.
6973 Also, there's nothing to prevent someone putting
6974 something silly in .opd with the assembler. No .opd
6975 optimization for them! */
6977 (*_bfd_error_handler)
6978 (_("%B: .opd is not a regular array of opd entries"), ibfd);
6983 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6984 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6986 (*_bfd_error_handler)
6987 (_("%B: unexpected reloc type %u in .opd section"),
6993 r_symndx = ELF64_R_SYM (rel->r_info);
6994 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6998 if (sym_sec == NULL || sym_sec->owner == NULL)
7000 const char *sym_name;
7002 sym_name = h->root.root.string;
7004 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7007 (*_bfd_error_handler)
7008 (_("%B: undefined sym `%s' in .opd section"),
7014 /* opd entries are always for functions defined in the
7015 current input bfd. If the symbol isn't defined in the
7016 input bfd, then we won't be using the function in this
7017 bfd; It must be defined in a linkonce section in another
7018 bfd, or is weak. It's also possible that we are
7019 discarding the function due to a linker script /DISCARD/,
7020 which we test for via the output_section. */
7021 if (sym_sec->owner != ibfd
7022 || sym_sec->output_section == bfd_abs_section_ptr)
7027 || (rel + 1 == relend && rel->r_offset == offset + 16))
7029 if (sec->size == offset + 24)
7034 if (rel == relend && sec->size == offset + 16)
7042 if (rel->r_offset == offset + 24)
7044 else if (rel->r_offset != offset + 16)
7046 else if (rel + 1 < relend
7047 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
7048 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
7053 else if (rel + 2 < relend
7054 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
7055 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
7064 add_aux_fields = non_overlapping && cnt_16b > 0;
7066 if (need_edit || add_aux_fields)
7068 Elf_Internal_Rela *write_rel;
7069 bfd_byte *rptr, *wptr;
7070 bfd_byte *new_contents;
7075 new_contents = NULL;
7076 amt = sec->size * sizeof (long) / 8;
7077 opd = &ppc64_elf_section_data (sec)->u.opd;
7078 opd->adjust = bfd_zalloc (sec->owner, amt);
7079 if (opd->adjust == NULL)
7081 ppc64_elf_section_data (sec)->sec_type = sec_opd;
7083 /* This seems a waste of time as input .opd sections are all
7084 zeros as generated by gcc, but I suppose there's no reason
7085 this will always be so. We might start putting something in
7086 the third word of .opd entries. */
7087 if ((sec->flags & SEC_IN_MEMORY) == 0)
7090 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
7095 if (local_syms != NULL
7096 && symtab_hdr->contents != (unsigned char *) local_syms)
7098 if (elf_section_data (sec)->relocs != relstart)
7102 sec->contents = loc;
7103 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
7106 elf_section_data (sec)->relocs = relstart;
7108 new_contents = sec->contents;
7111 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
7112 if (new_contents == NULL)
7116 wptr = new_contents;
7117 rptr = sec->contents;
7119 write_rel = relstart;
7123 for (rel = relstart; rel < relend; rel++)
7125 unsigned long r_symndx;
7127 struct elf_link_hash_entry *h;
7128 Elf_Internal_Sym *sym;
7130 r_symndx = ELF64_R_SYM (rel->r_info);
7131 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7135 if (rel->r_offset == offset)
7137 struct ppc_link_hash_entry *fdh = NULL;
7139 /* See if the .opd entry is full 24 byte or
7140 16 byte (with fd_aux entry overlapped with next
7143 if ((rel + 2 == relend && sec->size == offset + 16)
7144 || (rel + 3 < relend
7145 && rel[2].r_offset == offset + 16
7146 && rel[3].r_offset == offset + 24
7147 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
7148 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
7152 && h->root.root.string[0] == '.')
7154 struct ppc_link_hash_table *htab;
7156 htab = ppc_hash_table (info);
7158 fdh = lookup_fdh ((struct ppc_link_hash_entry *) h,
7161 && fdh->elf.root.type != bfd_link_hash_defined
7162 && fdh->elf.root.type != bfd_link_hash_defweak)
7166 skip = (sym_sec->owner != ibfd
7167 || sym_sec->output_section == bfd_abs_section_ptr);
7170 if (fdh != NULL && sym_sec->owner == ibfd)
7172 /* Arrange for the function descriptor sym
7174 fdh->elf.root.u.def.value = 0;
7175 fdh->elf.root.u.def.section = sym_sec;
7177 opd->adjust[rel->r_offset / 8] = -1;
7181 /* We'll be keeping this opd entry. */
7185 /* Redefine the function descriptor symbol to
7186 this location in the opd section. It is
7187 necessary to update the value here rather
7188 than using an array of adjustments as we do
7189 for local symbols, because various places
7190 in the generic ELF code use the value
7191 stored in u.def.value. */
7192 fdh->elf.root.u.def.value = wptr - new_contents;
7193 fdh->adjust_done = 1;
7196 /* Local syms are a bit tricky. We could
7197 tweak them as they can be cached, but
7198 we'd need to look through the local syms
7199 for the function descriptor sym which we
7200 don't have at the moment. So keep an
7201 array of adjustments. */
7202 opd->adjust[rel->r_offset / 8]
7203 = (wptr - new_contents) - (rptr - sec->contents);
7206 memcpy (wptr, rptr, opd_ent_size);
7207 wptr += opd_ent_size;
7208 if (add_aux_fields && opd_ent_size == 16)
7210 memset (wptr, '\0', 8);
7214 rptr += opd_ent_size;
7215 offset += opd_ent_size;
7221 && !info->relocatable
7222 && !dec_dynrel_count (rel->r_info, sec, info,
7228 /* We need to adjust any reloc offsets to point to the
7229 new opd entries. While we're at it, we may as well
7230 remove redundant relocs. */
7231 rel->r_offset += opd->adjust[(offset - opd_ent_size) / 8];
7232 if (write_rel != rel)
7233 memcpy (write_rel, rel, sizeof (*rel));
7238 sec->size = wptr - new_contents;
7239 sec->reloc_count = write_rel - relstart;
7242 free (sec->contents);
7243 sec->contents = new_contents;
7246 /* Fudge the header size too, as this is used later in
7247 elf_bfd_final_link if we are emitting relocs. */
7248 elf_section_data (sec)->rel_hdr.sh_size
7249 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
7250 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
7253 else if (elf_section_data (sec)->relocs != relstart)
7256 if (local_syms != NULL
7257 && symtab_hdr->contents != (unsigned char *) local_syms)
7259 if (!info->keep_memory)
7262 symtab_hdr->contents = (unsigned char *) local_syms;
7267 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
7269 /* If we are doing a final link and the last .opd entry is just 16 byte
7270 long, add a 8 byte padding after it. */
7271 if (need_pad != NULL && !info->relocatable)
7275 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
7277 BFD_ASSERT (need_pad->size > 0);
7279 p = bfd_malloc (need_pad->size + 8);
7283 if (! bfd_get_section_contents (need_pad->owner, need_pad,
7284 p, 0, need_pad->size))
7287 need_pad->contents = p;
7288 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
7292 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
7296 need_pad->contents = p;
7299 memset (need_pad->contents + need_pad->size, 0, 8);
7300 need_pad->size += 8;
7306 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
7309 ppc64_elf_tls_setup (struct bfd_link_info *info,
7310 int no_tls_get_addr_opt,
7313 struct ppc_link_hash_table *htab;
7315 htab = ppc_hash_table (info);
7320 htab->do_multi_toc = 0;
7321 else if (!htab->do_multi_toc)
7324 htab->tls_get_addr = ((struct ppc_link_hash_entry *)
7325 elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
7326 FALSE, FALSE, TRUE));
7327 /* Move dynamic linking info to the function descriptor sym. */
7328 if (htab->tls_get_addr != NULL)
7329 func_desc_adjust (&htab->tls_get_addr->elf, info);
7330 htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *)
7331 elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
7332 FALSE, FALSE, TRUE));
7333 if (!no_tls_get_addr_opt)
7335 struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd;
7337 opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt",
7338 FALSE, FALSE, TRUE);
7340 func_desc_adjust (opt, info);
7341 opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
7342 FALSE, FALSE, TRUE);
7344 && (opt_fd->root.type == bfd_link_hash_defined
7345 || opt_fd->root.type == bfd_link_hash_defweak))
7347 /* If glibc supports an optimized __tls_get_addr call stub,
7348 signalled by the presence of __tls_get_addr_opt, and we'll
7349 be calling __tls_get_addr via a plt call stub, then
7350 make __tls_get_addr point to __tls_get_addr_opt. */
7351 tga_fd = &htab->tls_get_addr_fd->elf;
7352 if (htab->elf.dynamic_sections_created
7354 && (tga_fd->type == STT_FUNC
7355 || tga_fd->needs_plt)
7356 && !(SYMBOL_CALLS_LOCAL (info, tga_fd)
7357 || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT
7358 && tga_fd->root.type == bfd_link_hash_undefweak)))
7360 struct plt_entry *ent;
7362 for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next)
7363 if (ent->plt.refcount > 0)
7367 tga_fd->root.type = bfd_link_hash_indirect;
7368 tga_fd->root.u.i.link = &opt_fd->root;
7369 ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd);
7370 if (opt_fd->dynindx != -1)
7372 /* Use __tls_get_addr_opt in dynamic relocations. */
7373 opt_fd->dynindx = -1;
7374 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
7375 opt_fd->dynstr_index);
7376 if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd))
7379 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd;
7380 tga = &htab->tls_get_addr->elf;
7381 if (opt != NULL && tga != NULL)
7383 tga->root.type = bfd_link_hash_indirect;
7384 tga->root.u.i.link = &opt->root;
7385 ppc64_elf_copy_indirect_symbol (info, opt, tga);
7386 _bfd_elf_link_hash_hide_symbol (info, opt,
7388 htab->tls_get_addr = (struct ppc_link_hash_entry *) opt;
7390 htab->tls_get_addr_fd->oh = htab->tls_get_addr;
7391 htab->tls_get_addr_fd->is_func_descriptor = 1;
7392 if (htab->tls_get_addr != NULL)
7394 htab->tls_get_addr->oh = htab->tls_get_addr_fd;
7395 htab->tls_get_addr->is_func = 1;
7401 no_tls_get_addr_opt = TRUE;
7403 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
7404 return _bfd_elf_tls_setup (info->output_bfd, info);
7407 /* Return TRUE iff REL is a branch reloc with a global symbol matching
7411 branch_reloc_hash_match (const bfd *ibfd,
7412 const Elf_Internal_Rela *rel,
7413 const struct ppc_link_hash_entry *hash1,
7414 const struct ppc_link_hash_entry *hash2)
7416 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
7417 enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info);
7418 unsigned int r_symndx = ELF64_R_SYM (rel->r_info);
7420 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
7422 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
7423 struct elf_link_hash_entry *h;
7425 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7426 h = elf_follow_link (h);
7427 if (h == &hash1->elf || h == &hash2->elf)
7433 /* Run through all the TLS relocs looking for optimization
7434 opportunities. The linker has been hacked (see ppc64elf.em) to do
7435 a preliminary section layout so that we know the TLS segment
7436 offsets. We can't optimize earlier because some optimizations need
7437 to know the tp offset, and we need to optimize before allocating
7438 dynamic relocations. */
7441 ppc64_elf_tls_optimize (struct bfd_link_info *info)
7445 struct ppc_link_hash_table *htab;
7448 if (info->relocatable || !info->executable)
7451 htab = ppc_hash_table (info);
7455 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7457 Elf_Internal_Sym *locsyms = NULL;
7458 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
7459 unsigned char *toc_ref = NULL;
7461 /* Look at all the sections for this file. Make two passes over
7462 the relocs. On the first pass, mark toc entries involved
7463 with tls relocs, and check that tls relocs involved in
7464 setting up a tls_get_addr call are indeed followed by such a
7465 call. If they are not, exclude them from the optimizations
7466 done on the second pass. */
7467 for (pass = 0; pass < 2; ++pass)
7468 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7469 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
7471 Elf_Internal_Rela *relstart, *rel, *relend;
7473 /* Read the relocations. */
7474 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7476 if (relstart == NULL)
7479 relend = relstart + sec->reloc_count;
7480 for (rel = relstart; rel < relend; rel++)
7482 enum elf_ppc64_reloc_type r_type;
7483 unsigned long r_symndx;
7484 struct elf_link_hash_entry *h;
7485 Elf_Internal_Sym *sym;
7487 unsigned char *tls_mask;
7488 unsigned char tls_set, tls_clear, tls_type = 0;
7490 bfd_boolean ok_tprel, is_local;
7491 long toc_ref_index = 0;
7492 int expecting_tls_get_addr = 0;
7494 r_symndx = ELF64_R_SYM (rel->r_info);
7495 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
7499 if (elf_section_data (sec)->relocs != relstart)
7501 if (toc_ref != NULL)
7504 && (elf_symtab_hdr (ibfd).contents
7505 != (unsigned char *) locsyms))
7512 if (h->root.type == bfd_link_hash_defined
7513 || h->root.type == bfd_link_hash_defweak)
7514 value = h->root.u.def.value;
7515 else if (h->root.type == bfd_link_hash_undefweak)
7521 /* Symbols referenced by TLS relocs must be of type
7522 STT_TLS. So no need for .opd local sym adjust. */
7523 value = sym->st_value;
7532 && h->root.type == bfd_link_hash_undefweak)
7536 value += sym_sec->output_offset;
7537 value += sym_sec->output_section->vma;
7538 value -= htab->elf.tls_sec->vma;
7539 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
7540 < (bfd_vma) 1 << 32);
7544 r_type = ELF64_R_TYPE (rel->r_info);
7547 case R_PPC64_GOT_TLSLD16:
7548 case R_PPC64_GOT_TLSLD16_LO:
7549 expecting_tls_get_addr = 1;
7552 case R_PPC64_GOT_TLSLD16_HI:
7553 case R_PPC64_GOT_TLSLD16_HA:
7554 /* These relocs should never be against a symbol
7555 defined in a shared lib. Leave them alone if
7556 that turns out to be the case. */
7563 tls_type = TLS_TLS | TLS_LD;
7566 case R_PPC64_GOT_TLSGD16:
7567 case R_PPC64_GOT_TLSGD16_LO:
7568 expecting_tls_get_addr = 1;
7571 case R_PPC64_GOT_TLSGD16_HI:
7572 case R_PPC64_GOT_TLSGD16_HA:
7578 tls_set = TLS_TLS | TLS_TPRELGD;
7580 tls_type = TLS_TLS | TLS_GD;
7583 case R_PPC64_GOT_TPREL16_DS:
7584 case R_PPC64_GOT_TPREL16_LO_DS:
7585 case R_PPC64_GOT_TPREL16_HI:
7586 case R_PPC64_GOT_TPREL16_HA:
7591 tls_clear = TLS_TPREL;
7592 tls_type = TLS_TLS | TLS_TPREL;
7598 case R_PPC64_TOC16_LO:
7602 if (sym_sec == NULL || sym_sec != toc)
7605 /* Mark this toc entry as referenced by a TLS
7606 code sequence. We can do that now in the
7607 case of R_PPC64_TLS, and after checking for
7608 tls_get_addr for the TOC16 relocs. */
7609 if (toc_ref == NULL)
7611 toc_ref = bfd_zmalloc (toc->size / 8);
7612 if (toc_ref == NULL)
7616 value = h->root.u.def.value;
7618 value = sym->st_value;
7619 value += rel->r_addend;
7620 BFD_ASSERT (value < toc->size && value % 8 == 0);
7621 toc_ref_index = value / 8;
7622 if (r_type == R_PPC64_TLS
7623 || r_type == R_PPC64_TLSGD
7624 || r_type == R_PPC64_TLSLD)
7626 toc_ref[toc_ref_index] = 1;
7630 if (pass != 0 && toc_ref[toc_ref_index] == 0)
7635 expecting_tls_get_addr = 2;
7638 case R_PPC64_TPREL64:
7642 || !toc_ref[rel->r_offset / 8])
7647 tls_set = TLS_EXPLICIT;
7648 tls_clear = TLS_TPREL;
7653 case R_PPC64_DTPMOD64:
7657 || !toc_ref[rel->r_offset / 8])
7659 if (rel + 1 < relend
7661 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
7662 && rel[1].r_offset == rel->r_offset + 8)
7666 tls_set = TLS_EXPLICIT | TLS_GD;
7669 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
7678 tls_set = TLS_EXPLICIT;
7689 if (!expecting_tls_get_addr
7690 || !sec->has_tls_get_addr_call)
7693 if (rel + 1 < relend
7694 && branch_reloc_hash_match (ibfd, rel + 1,
7696 htab->tls_get_addr_fd))
7698 if (expecting_tls_get_addr == 2)
7700 /* Check for toc tls entries. */
7701 unsigned char *toc_tls;
7704 retval = get_tls_mask (&toc_tls, NULL, NULL,
7709 if (retval > 1 && toc_tls != NULL)
7710 toc_ref[toc_ref_index] = 1;
7715 if (expecting_tls_get_addr != 1)
7718 /* Uh oh, we didn't find the expected call. We
7719 could just mark this symbol to exclude it
7720 from tls optimization but it's safer to skip
7721 the entire section. */
7722 sec->has_tls_reloc = 0;
7726 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
7728 struct plt_entry *ent;
7729 for (ent = htab->tls_get_addr->elf.plt.plist;
7732 if (ent->addend == 0)
7734 if (ent->plt.refcount > 0)
7736 ent->plt.refcount -= 1;
7737 expecting_tls_get_addr = 0;
7743 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
7745 struct plt_entry *ent;
7746 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
7749 if (ent->addend == 0)
7751 if (ent->plt.refcount > 0)
7752 ent->plt.refcount -= 1;
7760 if ((tls_set & TLS_EXPLICIT) == 0)
7762 struct got_entry *ent;
7764 /* Adjust got entry for this reloc. */
7768 ent = elf_local_got_ents (ibfd)[r_symndx];
7770 for (; ent != NULL; ent = ent->next)
7771 if (ent->addend == rel->r_addend
7772 && ent->owner == ibfd
7773 && ent->tls_type == tls_type)
7780 /* We managed to get rid of a got entry. */
7781 if (ent->got.refcount > 0)
7782 ent->got.refcount -= 1;
7787 /* If we got rid of a DTPMOD/DTPREL reloc pair then
7788 we'll lose one or two dyn relocs. */
7789 if (!dec_dynrel_count (rel->r_info, sec, info,
7793 if (tls_set == (TLS_EXPLICIT | TLS_GD))
7795 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
7801 *tls_mask |= tls_set;
7802 *tls_mask &= ~tls_clear;
7805 if (elf_section_data (sec)->relocs != relstart)
7809 if (toc_ref != NULL)
7813 && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms))
7815 if (!info->keep_memory)
7818 elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms;
7824 /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
7825 the values of any global symbols in a toc section that has been
7826 edited. Globals in toc sections should be a rarity, so this function
7827 sets a flag if any are found in toc sections other than the one just
7828 edited, so that futher hash table traversals can be avoided. */
7830 struct adjust_toc_info
7833 unsigned long *skip;
7834 bfd_boolean global_toc_syms;
7838 adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
7840 struct ppc_link_hash_entry *eh;
7841 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
7843 if (h->root.type == bfd_link_hash_indirect)
7846 if (h->root.type == bfd_link_hash_warning)
7847 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7849 if (h->root.type != bfd_link_hash_defined
7850 && h->root.type != bfd_link_hash_defweak)
7853 eh = (struct ppc_link_hash_entry *) h;
7854 if (eh->adjust_done)
7857 if (eh->elf.root.u.def.section == toc_inf->toc)
7859 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
7860 if (skip != (unsigned long) -1)
7861 eh->elf.root.u.def.value -= skip;
7864 (*_bfd_error_handler)
7865 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
7866 eh->elf.root.u.def.section = &bfd_abs_section;
7867 eh->elf.root.u.def.value = 0;
7869 eh->adjust_done = 1;
7871 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
7872 toc_inf->global_toc_syms = TRUE;
7877 /* Examine all relocs referencing .toc sections in order to remove
7878 unused .toc entries. */
7881 ppc64_elf_edit_toc (struct bfd_link_info *info)
7884 struct adjust_toc_info toc_inf;
7886 toc_inf.global_toc_syms = TRUE;
7887 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7889 asection *toc, *sec;
7890 Elf_Internal_Shdr *symtab_hdr;
7891 Elf_Internal_Sym *local_syms;
7892 struct elf_link_hash_entry **sym_hashes;
7893 Elf_Internal_Rela *relstart, *rel;
7894 unsigned long *skip, *drop;
7895 unsigned char *used;
7896 unsigned char *keep, last, some_unused;
7898 toc = bfd_get_section_by_name (ibfd, ".toc");
7901 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
7902 || elf_discarded_section (toc))
7906 symtab_hdr = &elf_symtab_hdr (ibfd);
7907 sym_hashes = elf_sym_hashes (ibfd);
7909 /* Look at sections dropped from the final link. */
7912 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7914 if (sec->reloc_count == 0
7915 || !elf_discarded_section (sec)
7916 || get_opd_info (sec)
7917 || (sec->flags & SEC_ALLOC) == 0
7918 || (sec->flags & SEC_DEBUGGING) != 0)
7921 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
7922 if (relstart == NULL)
7925 /* Run through the relocs to see which toc entries might be
7927 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7929 enum elf_ppc64_reloc_type r_type;
7930 unsigned long r_symndx;
7932 struct elf_link_hash_entry *h;
7933 Elf_Internal_Sym *sym;
7936 r_type = ELF64_R_TYPE (rel->r_info);
7943 case R_PPC64_TOC16_LO:
7944 case R_PPC64_TOC16_HI:
7945 case R_PPC64_TOC16_HA:
7946 case R_PPC64_TOC16_DS:
7947 case R_PPC64_TOC16_LO_DS:
7951 r_symndx = ELF64_R_SYM (rel->r_info);
7952 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7960 val = h->root.u.def.value;
7962 val = sym->st_value;
7963 val += rel->r_addend;
7965 if (val >= toc->size)
7968 /* Anything in the toc ought to be aligned to 8 bytes.
7969 If not, don't mark as unused. */
7975 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7983 if (elf_section_data (sec)->relocs != relstart)
7990 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7994 if (local_syms != NULL
7995 && symtab_hdr->contents != (unsigned char *) local_syms)
7999 && elf_section_data (sec)->relocs != relstart)
8006 /* Now check all kept sections that might reference the toc.
8007 Check the toc itself last. */
8008 for (sec = (ibfd->sections == toc && toc->next ? toc->next
8011 sec = (sec == toc ? NULL
8012 : sec->next == NULL ? toc
8013 : sec->next == toc && toc->next ? toc->next
8018 if (sec->reloc_count == 0
8019 || elf_discarded_section (sec)
8020 || get_opd_info (sec)
8021 || (sec->flags & SEC_ALLOC) == 0
8022 || (sec->flags & SEC_DEBUGGING) != 0)
8025 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
8026 if (relstart == NULL)
8029 /* Mark toc entries referenced as used. */
8032 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8034 enum elf_ppc64_reloc_type r_type;
8035 unsigned long r_symndx;
8037 struct elf_link_hash_entry *h;
8038 Elf_Internal_Sym *sym;
8041 r_type = ELF64_R_TYPE (rel->r_info);
8045 case R_PPC64_TOC16_LO:
8046 case R_PPC64_TOC16_HI:
8047 case R_PPC64_TOC16_HA:
8048 case R_PPC64_TOC16_DS:
8049 case R_PPC64_TOC16_LO_DS:
8050 /* In case we're taking addresses of toc entries. */
8051 case R_PPC64_ADDR64:
8058 r_symndx = ELF64_R_SYM (rel->r_info);
8059 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8070 val = h->root.u.def.value;
8072 val = sym->st_value;
8073 val += rel->r_addend;
8075 if (val >= toc->size)
8078 /* For the toc section, we only mark as used if
8079 this entry itself isn't unused. */
8082 && (used[rel->r_offset >> 3]
8083 || !skip[rel->r_offset >> 3]))
8084 /* Do all the relocs again, to catch reference
8093 /* Merge the used and skip arrays. Assume that TOC
8094 doublewords not appearing as either used or unused belong
8095 to to an entry more than one doubleword in size. */
8096 for (drop = skip, keep = used, last = 0, some_unused = 0;
8097 drop < skip + (toc->size + 7) / 8;
8118 bfd_byte *contents, *src;
8121 /* Shuffle the toc contents, and at the same time convert the
8122 skip array from booleans into offsets. */
8123 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
8126 elf_section_data (toc)->this_hdr.contents = contents;
8128 for (src = contents, off = 0, drop = skip;
8129 src < contents + toc->size;
8134 *drop = (unsigned long) -1;
8140 memcpy (src - off, src, 8);
8143 toc->rawsize = toc->size;
8144 toc->size = src - contents - off;
8146 if (toc->reloc_count != 0)
8148 Elf_Internal_Rela *wrel;
8151 /* Read toc relocs. */
8152 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
8154 if (relstart == NULL)
8157 /* Remove unused toc relocs, and adjust those we keep. */
8159 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
8160 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
8162 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
8163 wrel->r_info = rel->r_info;
8164 wrel->r_addend = rel->r_addend;
8167 else if (!dec_dynrel_count (rel->r_info, toc, info,
8168 &local_syms, NULL, NULL))
8171 toc->reloc_count = wrel - relstart;
8172 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
8173 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
8174 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
8177 /* Adjust addends for relocs against the toc section sym. */
8178 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8180 if (sec->reloc_count == 0
8181 || elf_discarded_section (sec))
8184 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8186 if (relstart == NULL)
8189 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8191 enum elf_ppc64_reloc_type r_type;
8192 unsigned long r_symndx;
8194 struct elf_link_hash_entry *h;
8195 Elf_Internal_Sym *sym;
8197 r_type = ELF64_R_TYPE (rel->r_info);
8204 case R_PPC64_TOC16_LO:
8205 case R_PPC64_TOC16_HI:
8206 case R_PPC64_TOC16_HA:
8207 case R_PPC64_TOC16_DS:
8208 case R_PPC64_TOC16_LO_DS:
8209 case R_PPC64_ADDR64:
8213 r_symndx = ELF64_R_SYM (rel->r_info);
8214 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8218 if (sym_sec != toc || h != NULL || sym->st_value != 0)
8221 rel->r_addend -= skip[rel->r_addend >> 3];
8225 /* We shouldn't have local or global symbols defined in the TOC,
8226 but handle them anyway. */
8227 if (local_syms != NULL)
8229 Elf_Internal_Sym *sym;
8231 for (sym = local_syms;
8232 sym < local_syms + symtab_hdr->sh_info;
8234 if (sym->st_value != 0
8235 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
8237 if (skip[sym->st_value >> 3] != (unsigned long) -1)
8238 sym->st_value -= skip[sym->st_value >> 3];
8241 (*_bfd_error_handler)
8242 (_("%s defined in removed toc entry"),
8243 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
8246 sym->st_shndx = SHN_ABS;
8248 symtab_hdr->contents = (unsigned char *) local_syms;
8252 /* Finally, adjust any global syms defined in the toc. */
8253 if (toc_inf.global_toc_syms)
8256 toc_inf.skip = skip;
8257 toc_inf.global_toc_syms = FALSE;
8258 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
8263 if (local_syms != NULL
8264 && symtab_hdr->contents != (unsigned char *) local_syms)
8266 if (!info->keep_memory)
8269 symtab_hdr->contents = (unsigned char *) local_syms;
8277 /* Allocate space for one GOT entry. */
8280 allocate_got (struct elf_link_hash_entry *h,
8281 struct bfd_link_info *info,
8282 struct got_entry *gent)
8284 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8286 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
8287 int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)
8289 int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD
8290 ? 2 : 1) * sizeof (Elf64_External_Rela);
8291 asection *got = ppc64_elf_tdata (gent->owner)->got;
8293 gent->got.offset = got->size;
8294 got->size += entsize;
8296 dyn = htab->elf.dynamic_sections_created;
8298 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
8299 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8300 || h->root.type != bfd_link_hash_undefweak))
8302 asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
8303 relgot->size += rentsize;
8305 else if (h->type == STT_GNU_IFUNC)
8307 asection *relgot = htab->reliplt;
8308 relgot->size += rentsize;
8309 htab->got_reli_size += rentsize;
8313 /* This function merges got entries in the same toc group. */
8316 merge_got_entries (struct got_entry **pent)
8318 struct got_entry *ent, *ent2;
8320 for (ent = *pent; ent != NULL; ent = ent->next)
8321 if (!ent->is_indirect)
8322 for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next)
8323 if (!ent2->is_indirect
8324 && ent2->addend == ent->addend
8325 && ent2->tls_type == ent->tls_type
8326 && elf_gp (ent2->owner) == elf_gp (ent->owner))
8328 ent2->is_indirect = TRUE;
8329 ent2->got.ent = ent;
8333 /* Allocate space in .plt, .got and associated reloc sections for
8337 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
8339 struct bfd_link_info *info;
8340 struct ppc_link_hash_table *htab;
8342 struct ppc_link_hash_entry *eh;
8343 struct ppc_dyn_relocs *p;
8344 struct got_entry **pgent, *gent;
8346 if (h->root.type == bfd_link_hash_indirect)
8349 if (h->root.type == bfd_link_hash_warning)
8350 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8352 info = (struct bfd_link_info *) inf;
8353 htab = ppc_hash_table (info);
8357 if ((htab->elf.dynamic_sections_created
8359 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
8360 || h->type == STT_GNU_IFUNC)
8362 struct plt_entry *pent;
8363 bfd_boolean doneone = FALSE;
8364 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
8365 if (pent->plt.refcount > 0)
8367 if (!htab->elf.dynamic_sections_created
8368 || h->dynindx == -1)
8371 pent->plt.offset = s->size;
8372 s->size += PLT_ENTRY_SIZE;
8377 /* If this is the first .plt entry, make room for the special
8381 s->size += PLT_INITIAL_ENTRY_SIZE;
8383 pent->plt.offset = s->size;
8385 /* Make room for this entry. */
8386 s->size += PLT_ENTRY_SIZE;
8388 /* Make room for the .glink code. */
8391 s->size += GLINK_CALL_STUB_SIZE;
8392 /* We need bigger stubs past index 32767. */
8393 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
8397 /* We also need to make an entry in the .rela.plt section. */
8400 s->size += sizeof (Elf64_External_Rela);
8404 pent->plt.offset = (bfd_vma) -1;
8407 h->plt.plist = NULL;
8413 h->plt.plist = NULL;
8417 eh = (struct ppc_link_hash_entry *) h;
8418 /* Run through the TLS GD got entries first if we're changing them
8420 if ((eh->tls_mask & TLS_TPRELGD) != 0)
8421 for (gent = h->got.glist; gent != NULL; gent = gent->next)
8422 if (gent->got.refcount > 0
8423 && (gent->tls_type & TLS_GD) != 0)
8425 /* This was a GD entry that has been converted to TPREL. If
8426 there happens to be a TPREL entry we can use that one. */
8427 struct got_entry *ent;
8428 for (ent = h->got.glist; ent != NULL; ent = ent->next)
8429 if (ent->got.refcount > 0
8430 && (ent->tls_type & TLS_TPREL) != 0
8431 && ent->addend == gent->addend
8432 && ent->owner == gent->owner)
8434 gent->got.refcount = 0;
8438 /* If not, then we'll be using our own TPREL entry. */
8439 if (gent->got.refcount != 0)
8440 gent->tls_type = TLS_TLS | TLS_TPREL;
8443 /* Remove any list entry that won't generate a word in the GOT before
8444 we call merge_got_entries. Otherwise we risk merging to empty
8446 pgent = &h->got.glist;
8447 while ((gent = *pgent) != NULL)
8448 if (gent->got.refcount > 0)
8450 if ((gent->tls_type & TLS_LD) != 0
8453 ppc64_tlsld_got (gent->owner)->got.refcount += 1;
8454 *pgent = gent->next;
8457 pgent = &gent->next;
8460 *pgent = gent->next;
8462 if (!htab->do_multi_toc)
8463 merge_got_entries (&h->got.glist);
8465 for (gent = h->got.glist; gent != NULL; gent = gent->next)
8466 if (!gent->is_indirect)
8468 /* Make sure this symbol is output as a dynamic symbol.
8469 Undefined weak syms won't yet be marked as dynamic,
8470 nor will all TLS symbols. */
8471 if (h->dynindx == -1
8473 && h->type != STT_GNU_IFUNC
8474 && htab->elf.dynamic_sections_created)
8476 if (! bfd_elf_link_record_dynamic_symbol (info, h))
8480 if (!is_ppc64_elf (gent->owner))
8483 allocate_got (h, info, gent);
8486 if (eh->dyn_relocs == NULL
8487 || (!htab->elf.dynamic_sections_created
8488 && h->type != STT_GNU_IFUNC))
8491 /* In the shared -Bsymbolic case, discard space allocated for
8492 dynamic pc-relative relocs against symbols which turn out to be
8493 defined in regular objects. For the normal shared case, discard
8494 space for relocs that have become local due to symbol visibility
8499 /* Relocs that use pc_count are those that appear on a call insn,
8500 or certain REL relocs (see must_be_dyn_reloc) that can be
8501 generated via assembly. We want calls to protected symbols to
8502 resolve directly to the function rather than going via the plt.
8503 If people want function pointer comparisons to work as expected
8504 then they should avoid writing weird assembly. */
8505 if (SYMBOL_CALLS_LOCAL (info, h))
8507 struct ppc_dyn_relocs **pp;
8509 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
8511 p->count -= p->pc_count;
8520 /* Also discard relocs on undefined weak syms with non-default
8522 if (eh->dyn_relocs != NULL
8523 && h->root.type == bfd_link_hash_undefweak)
8525 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
8526 eh->dyn_relocs = NULL;
8528 /* Make sure this symbol is output as a dynamic symbol.
8529 Undefined weak syms won't yet be marked as dynamic. */
8530 else if (h->dynindx == -1
8531 && !h->forced_local)
8533 if (! bfd_elf_link_record_dynamic_symbol (info, h))
8538 else if (h->type == STT_GNU_IFUNC)
8540 if (!h->non_got_ref)
8541 eh->dyn_relocs = NULL;
8543 else if (ELIMINATE_COPY_RELOCS)
8545 /* For the non-shared case, discard space for relocs against
8546 symbols which turn out to need copy relocs or are not
8552 /* Make sure this symbol is output as a dynamic symbol.
8553 Undefined weak syms won't yet be marked as dynamic. */
8554 if (h->dynindx == -1
8555 && !h->forced_local)
8557 if (! bfd_elf_link_record_dynamic_symbol (info, h))
8561 /* If that succeeded, we know we'll be keeping all the
8563 if (h->dynindx != -1)
8567 eh->dyn_relocs = NULL;
8572 /* Finally, allocate space. */
8573 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8575 asection *sreloc = elf_section_data (p->sec)->sreloc;
8576 if (!htab->elf.dynamic_sections_created)
8577 sreloc = htab->reliplt;
8578 sreloc->size += p->count * sizeof (Elf64_External_Rela);
8584 /* Find any dynamic relocs that apply to read-only sections. */
8587 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
8589 struct ppc_link_hash_entry *eh;
8590 struct ppc_dyn_relocs *p;
8592 if (h->root.type == bfd_link_hash_warning)
8593 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8595 eh = (struct ppc_link_hash_entry *) h;
8596 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8598 asection *s = p->sec->output_section;
8600 if (s != NULL && (s->flags & SEC_READONLY) != 0)
8602 struct bfd_link_info *info = inf;
8604 info->flags |= DF_TEXTREL;
8606 /* Not an error, just cut short the traversal. */
8613 /* Set the sizes of the dynamic sections. */
8616 ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
8617 struct bfd_link_info *info)
8619 struct ppc_link_hash_table *htab;
8624 struct got_entry *first_tlsld;
8626 htab = ppc_hash_table (info);
8630 dynobj = htab->elf.dynobj;
8634 if (htab->elf.dynamic_sections_created)
8636 /* Set the contents of the .interp section to the interpreter. */
8637 if (info->executable)
8639 s = bfd_get_section_by_name (dynobj, ".interp");
8642 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
8643 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
8647 /* Set up .got offsets for local syms, and space for local dynamic
8649 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8651 struct got_entry **lgot_ents;
8652 struct got_entry **end_lgot_ents;
8653 struct plt_entry **local_plt;
8654 struct plt_entry **end_local_plt;
8655 unsigned char *lgot_masks;
8656 bfd_size_type locsymcount;
8657 Elf_Internal_Shdr *symtab_hdr;
8660 if (!is_ppc64_elf (ibfd))
8663 for (s = ibfd->sections; s != NULL; s = s->next)
8665 struct ppc_dyn_relocs *p;
8667 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
8669 if (!bfd_is_abs_section (p->sec)
8670 && bfd_is_abs_section (p->sec->output_section))
8672 /* Input section has been discarded, either because
8673 it is a copy of a linkonce section or due to
8674 linker script /DISCARD/, so we'll be discarding
8677 else if (p->count != 0)
8679 srel = elf_section_data (p->sec)->sreloc;
8680 if (!htab->elf.dynamic_sections_created)
8681 srel = htab->reliplt;
8682 srel->size += p->count * sizeof (Elf64_External_Rela);
8683 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
8684 info->flags |= DF_TEXTREL;
8689 lgot_ents = elf_local_got_ents (ibfd);
8693 symtab_hdr = &elf_symtab_hdr (ibfd);
8694 locsymcount = symtab_hdr->sh_info;
8695 end_lgot_ents = lgot_ents + locsymcount;
8696 local_plt = (struct plt_entry **) end_lgot_ents;
8697 end_local_plt = local_plt + locsymcount;
8698 lgot_masks = (unsigned char *) end_local_plt;
8699 s = ppc64_elf_tdata (ibfd)->got;
8700 srel = ppc64_elf_tdata (ibfd)->relgot;
8701 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
8703 struct got_entry **pent, *ent;
8706 while ((ent = *pent) != NULL)
8707 if (ent->got.refcount > 0)
8709 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
8711 ppc64_tlsld_got (ibfd)->got.refcount += 1;
8716 unsigned int num = 1;
8717 ent->got.offset = s->size;
8718 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
8722 srel->size += num * sizeof (Elf64_External_Rela);
8723 else if ((*lgot_masks & PLT_IFUNC) != 0)
8726 += num * sizeof (Elf64_External_Rela);
8728 += num * sizeof (Elf64_External_Rela);
8737 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
8738 for (; local_plt < end_local_plt; ++local_plt)
8740 struct plt_entry *ent;
8742 for (ent = *local_plt; ent != NULL; ent = ent->next)
8743 if (ent->plt.refcount > 0)
8746 ent->plt.offset = s->size;
8747 s->size += PLT_ENTRY_SIZE;
8749 htab->reliplt->size += sizeof (Elf64_External_Rela);
8752 ent->plt.offset = (bfd_vma) -1;
8756 /* Allocate global sym .plt and .got entries, and space for global
8757 sym dynamic relocs. */
8758 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
8761 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8763 struct got_entry *ent;
8765 if (!is_ppc64_elf (ibfd))
8768 ent = ppc64_tlsld_got (ibfd);
8769 if (ent->got.refcount > 0)
8771 if (!htab->do_multi_toc && first_tlsld != NULL)
8773 ent->is_indirect = TRUE;
8774 ent->got.ent = first_tlsld;
8778 if (first_tlsld == NULL)
8780 s = ppc64_elf_tdata (ibfd)->got;
8781 ent->got.offset = s->size;
8786 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
8787 srel->size += sizeof (Elf64_External_Rela);
8792 ent->got.offset = (bfd_vma) -1;
8795 /* We now have determined the sizes of the various dynamic sections.
8796 Allocate memory for them. */
8798 for (s = dynobj->sections; s != NULL; s = s->next)
8800 if ((s->flags & SEC_LINKER_CREATED) == 0)
8803 if (s == htab->brlt || s == htab->relbrlt)
8804 /* These haven't been allocated yet; don't strip. */
8806 else if (s == htab->got
8810 || s == htab->dynbss)
8812 /* Strip this section if we don't need it; see the
8815 else if (CONST_STRNEQ (s->name, ".rela"))
8819 if (s != htab->relplt)
8822 /* We use the reloc_count field as a counter if we need
8823 to copy relocs into the output file. */
8829 /* It's not one of our sections, so don't allocate space. */
8835 /* If we don't need this section, strip it from the
8836 output file. This is mostly to handle .rela.bss and
8837 .rela.plt. We must create both sections in
8838 create_dynamic_sections, because they must be created
8839 before the linker maps input sections to output
8840 sections. The linker does that before
8841 adjust_dynamic_symbol is called, and it is that
8842 function which decides whether anything needs to go
8843 into these sections. */
8844 s->flags |= SEC_EXCLUDE;
8848 if ((s->flags & SEC_HAS_CONTENTS) == 0)
8851 /* Allocate memory for the section contents. We use bfd_zalloc
8852 here in case unused entries are not reclaimed before the
8853 section's contents are written out. This should not happen,
8854 but this way if it does we get a R_PPC64_NONE reloc in .rela
8855 sections instead of garbage.
8856 We also rely on the section contents being zero when writing
8858 s->contents = bfd_zalloc (dynobj, s->size);
8859 if (s->contents == NULL)
8863 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8865 if (!is_ppc64_elf (ibfd))
8868 s = ppc64_elf_tdata (ibfd)->got;
8869 if (s != NULL && s != htab->got)
8872 s->flags |= SEC_EXCLUDE;
8875 s->contents = bfd_zalloc (ibfd, s->size);
8876 if (s->contents == NULL)
8880 s = ppc64_elf_tdata (ibfd)->relgot;
8884 s->flags |= SEC_EXCLUDE;
8887 s->contents = bfd_zalloc (ibfd, s->size);
8888 if (s->contents == NULL)
8896 if (htab->elf.dynamic_sections_created)
8898 /* Add some entries to the .dynamic section. We fill in the
8899 values later, in ppc64_elf_finish_dynamic_sections, but we
8900 must add the entries now so that we get the correct size for
8901 the .dynamic section. The DT_DEBUG entry is filled in by the
8902 dynamic linker and used by the debugger. */
8903 #define add_dynamic_entry(TAG, VAL) \
8904 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
8906 if (info->executable)
8908 if (!add_dynamic_entry (DT_DEBUG, 0))
8912 if (htab->plt != NULL && htab->plt->size != 0)
8914 if (!add_dynamic_entry (DT_PLTGOT, 0)
8915 || !add_dynamic_entry (DT_PLTRELSZ, 0)
8916 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
8917 || !add_dynamic_entry (DT_JMPREL, 0)
8918 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
8924 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
8925 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
8929 if (!htab->no_tls_get_addr_opt
8930 && htab->tls_get_addr_fd != NULL
8931 && htab->tls_get_addr_fd->elf.plt.plist != NULL
8932 && !add_dynamic_entry (DT_PPC64_TLSOPT, 0))
8937 if (!add_dynamic_entry (DT_RELA, 0)
8938 || !add_dynamic_entry (DT_RELASZ, 0)
8939 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
8942 /* If any dynamic relocs apply to a read-only section,
8943 then we need a DT_TEXTREL entry. */
8944 if ((info->flags & DF_TEXTREL) == 0)
8945 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
8947 if ((info->flags & DF_TEXTREL) != 0)
8949 if (!add_dynamic_entry (DT_TEXTREL, 0))
8954 #undef add_dynamic_entry
8959 /* Determine the type of stub needed, if any, for a call. */
8961 static inline enum ppc_stub_type
8962 ppc_type_of_stub (asection *input_sec,
8963 const Elf_Internal_Rela *rel,
8964 struct ppc_link_hash_entry **hash,
8965 struct plt_entry **plt_ent,
8966 bfd_vma destination)
8968 struct ppc_link_hash_entry *h = *hash;
8970 bfd_vma branch_offset;
8971 bfd_vma max_branch_offset;
8972 enum elf_ppc64_reloc_type r_type;
8976 struct plt_entry *ent;
8977 struct ppc_link_hash_entry *fdh = h;
8979 && h->oh->is_func_descriptor)
8981 fdh = ppc_follow_link (h->oh);
8985 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
8986 if (ent->addend == rel->r_addend
8987 && ent->plt.offset != (bfd_vma) -1)
8990 return ppc_stub_plt_call;
8993 /* Here, we know we don't have a plt entry. If we don't have a
8994 either a defined function descriptor or a defined entry symbol
8995 in a regular object file, then it is pointless trying to make
8996 any other type of stub. */
8997 if (!((fdh->elf.root.type == bfd_link_hash_defined
8998 || fdh->elf.root.type == bfd_link_hash_defweak)
8999 && fdh->elf.root.u.def.section->output_section != NULL)
9000 && !((h->elf.root.type == bfd_link_hash_defined
9001 || h->elf.root.type == bfd_link_hash_defweak)
9002 && h->elf.root.u.def.section->output_section != NULL))
9003 return ppc_stub_none;
9005 else if (elf_local_got_ents (input_sec->owner) != NULL)
9007 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner);
9008 struct plt_entry **local_plt = (struct plt_entry **)
9009 elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info;
9010 unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
9012 if (local_plt[r_symndx] != NULL)
9014 struct plt_entry *ent;
9016 for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next)
9017 if (ent->addend == rel->r_addend
9018 && ent->plt.offset != (bfd_vma) -1)
9021 return ppc_stub_plt_call;
9026 /* Determine where the call point is. */
9027 location = (input_sec->output_offset
9028 + input_sec->output_section->vma
9031 branch_offset = destination - location;
9032 r_type = ELF64_R_TYPE (rel->r_info);
9034 /* Determine if a long branch stub is needed. */
9035 max_branch_offset = 1 << 25;
9036 if (r_type != R_PPC64_REL24)
9037 max_branch_offset = 1 << 15;
9039 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
9040 /* We need a stub. Figure out whether a long_branch or plt_branch
9042 return ppc_stub_long_branch;
9044 return ppc_stub_none;
9047 /* Build a .plt call stub. */
9049 static inline bfd_byte *
9050 build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r)
9052 #define PPC_LO(v) ((v) & 0xffff)
9053 #define PPC_HI(v) (((v) >> 16) & 0xffff)
9054 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
9056 if (PPC_HA (offset) != 0)
9060 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
9061 r[1].r_offset = r[0].r_offset + 8;
9062 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9063 r[1].r_addend = r[0].r_addend;
9064 if (PPC_HA (offset + 16) != PPC_HA (offset))
9066 r[2].r_offset = r[1].r_offset + 4;
9067 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
9068 r[2].r_addend = r[0].r_addend;
9072 r[2].r_offset = r[1].r_offset + 8;
9073 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9074 r[2].r_addend = r[0].r_addend + 8;
9075 r[3].r_offset = r[2].r_offset + 4;
9076 r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9077 r[3].r_addend = r[0].r_addend + 16;
9080 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
9081 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
9082 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
9083 if (PPC_HA (offset + 16) != PPC_HA (offset))
9085 bfd_put_32 (obfd, ADDI_R12_R12 | PPC_LO (offset), p), p += 4;
9088 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
9089 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset + 8), p), p += 4;
9090 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
9091 bfd_put_32 (obfd, BCTR, p), p += 4;
9098 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9099 if (PPC_HA (offset + 16) != PPC_HA (offset))
9101 r[1].r_offset = r[0].r_offset + 4;
9102 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
9103 r[1].r_addend = r[0].r_addend;
9107 r[1].r_offset = r[0].r_offset + 8;
9108 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9109 r[1].r_addend = r[0].r_addend + 16;
9110 r[2].r_offset = r[1].r_offset + 4;
9111 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9112 r[2].r_addend = r[0].r_addend + 8;
9115 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
9116 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset), p), p += 4;
9117 if (PPC_HA (offset + 16) != PPC_HA (offset))
9119 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
9122 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
9123 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
9124 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
9125 bfd_put_32 (obfd, BCTR, p), p += 4;
9130 /* Build a special .plt call stub for __tls_get_addr. */
9132 #define LD_R11_0R3 0xe9630000
9133 #define LD_R12_0R3 0xe9830000
9134 #define MR_R0_R3 0x7c601b78
9135 #define CMPDI_R11_0 0x2c2b0000
9136 #define ADD_R3_R12_R13 0x7c6c6a14
9137 #define BEQLR 0x4d820020
9138 #define MR_R3_R0 0x7c030378
9139 #define MFLR_R11 0x7d6802a6
9140 #define STD_R11_0R1 0xf9610000
9141 #define BCTRL 0x4e800421
9142 #define LD_R11_0R1 0xe9610000
9143 #define LD_R2_0R1 0xe8410000
9144 #define MTLR_R11 0x7d6803a6
9146 static inline bfd_byte *
9147 build_tls_get_addr_stub (bfd *obfd, bfd_byte *p, int offset,
9148 Elf_Internal_Rela *r)
9150 bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4;
9151 bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4;
9152 bfd_put_32 (obfd, MR_R0_R3, p), p += 4;
9153 bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4;
9154 bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4;
9155 bfd_put_32 (obfd, BEQLR, p), p += 4;
9156 bfd_put_32 (obfd, MR_R3_R0, p), p += 4;
9157 bfd_put_32 (obfd, MFLR_R11, p), p += 4;
9158 bfd_put_32 (obfd, STD_R11_0R1 + 32, p), p += 4;
9161 r[0].r_offset += 9 * 4;
9162 p = build_plt_stub (obfd, p, offset, r);
9163 bfd_put_32 (obfd, BCTRL, p - 4);
9165 bfd_put_32 (obfd, LD_R11_0R1 + 32, p), p += 4;
9166 bfd_put_32 (obfd, LD_R2_0R1 + 40, p), p += 4;
9167 bfd_put_32 (obfd, MTLR_R11, p), p += 4;
9168 bfd_put_32 (obfd, BLR, p), p += 4;
9173 static Elf_Internal_Rela *
9174 get_relocs (asection *sec, int count)
9176 Elf_Internal_Rela *relocs;
9177 struct bfd_elf_section_data *elfsec_data;
9179 elfsec_data = elf_section_data (sec);
9180 relocs = elfsec_data->relocs;
9183 bfd_size_type relsize;
9184 relsize = sec->reloc_count * sizeof (*relocs);
9185 relocs = bfd_alloc (sec->owner, relsize);
9188 elfsec_data->relocs = relocs;
9189 elfsec_data->rel_hdr.sh_size = (sec->reloc_count
9190 * sizeof (Elf64_External_Rela));
9191 elfsec_data->rel_hdr.sh_entsize = sizeof (Elf64_External_Rela);
9192 sec->reloc_count = 0;
9194 relocs += sec->reloc_count;
9195 sec->reloc_count += count;
9200 ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
9202 struct ppc_stub_hash_entry *stub_entry;
9203 struct ppc_branch_hash_entry *br_entry;
9204 struct bfd_link_info *info;
9205 struct ppc_link_hash_table *htab;
9210 Elf_Internal_Rela *r;
9213 /* Massage our args to the form they really have. */
9214 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
9217 htab = ppc_hash_table (info);
9221 /* Make a note of the offset within the stubs for this entry. */
9222 stub_entry->stub_offset = stub_entry->stub_sec->size;
9223 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
9225 htab->stub_count[stub_entry->stub_type - 1] += 1;
9226 switch (stub_entry->stub_type)
9228 case ppc_stub_long_branch:
9229 case ppc_stub_long_branch_r2off:
9230 /* Branches are relative. This is where we are going to. */
9231 off = dest = (stub_entry->target_value
9232 + stub_entry->target_section->output_offset
9233 + stub_entry->target_section->output_section->vma);
9235 /* And this is where we are coming from. */
9236 off -= (stub_entry->stub_offset
9237 + stub_entry->stub_sec->output_offset
9238 + stub_entry->stub_sec->output_section->vma);
9241 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
9245 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
9246 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9247 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
9250 if (PPC_HA (r2off) != 0)
9253 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
9256 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
9260 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
9262 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
9264 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
9265 stub_entry->root.string);
9266 htab->stub_error = TRUE;
9270 if (info->emitrelocations)
9272 r = get_relocs (stub_entry->stub_sec, 1);
9275 r->r_offset = loc - stub_entry->stub_sec->contents;
9276 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
9278 if (stub_entry->h != NULL)
9280 struct elf_link_hash_entry **hashes;
9281 unsigned long symndx;
9282 struct ppc_link_hash_entry *h;
9284 hashes = elf_sym_hashes (htab->stub_bfd);
9287 bfd_size_type hsize;
9289 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
9290 hashes = bfd_zalloc (htab->stub_bfd, hsize);
9293 elf_sym_hashes (htab->stub_bfd) = hashes;
9294 htab->stub_globals = 1;
9296 symndx = htab->stub_globals++;
9298 hashes[symndx] = &h->elf;
9299 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
9300 if (h->oh != NULL && h->oh->is_func)
9301 h = ppc_follow_link (h->oh);
9302 if (h->elf.root.u.def.section != stub_entry->target_section)
9303 /* H is an opd symbol. The addend must be zero. */
9307 off = (h->elf.root.u.def.value
9308 + h->elf.root.u.def.section->output_offset
9309 + h->elf.root.u.def.section->output_section->vma);
9316 case ppc_stub_plt_branch:
9317 case ppc_stub_plt_branch_r2off:
9318 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
9319 stub_entry->root.string + 9,
9321 if (br_entry == NULL)
9323 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
9324 stub_entry->root.string);
9325 htab->stub_error = TRUE;
9329 dest = (stub_entry->target_value
9330 + stub_entry->target_section->output_offset
9331 + stub_entry->target_section->output_section->vma);
9333 bfd_put_64 (htab->brlt->owner, dest,
9334 htab->brlt->contents + br_entry->offset);
9336 if (br_entry->iter == htab->stub_iteration)
9340 if (htab->relbrlt != NULL)
9342 /* Create a reloc for the branch lookup table entry. */
9343 Elf_Internal_Rela rela;
9346 rela.r_offset = (br_entry->offset
9347 + htab->brlt->output_offset
9348 + htab->brlt->output_section->vma);
9349 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
9350 rela.r_addend = dest;
9352 rl = htab->relbrlt->contents;
9353 rl += (htab->relbrlt->reloc_count++
9354 * sizeof (Elf64_External_Rela));
9355 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
9357 else if (info->emitrelocations)
9359 r = get_relocs (htab->brlt, 1);
9362 /* brlt, being SEC_LINKER_CREATED does not go through the
9363 normal reloc processing. Symbols and offsets are not
9364 translated from input file to output file form, so
9365 set up the offset per the output file. */
9366 r->r_offset = (br_entry->offset
9367 + htab->brlt->output_offset
9368 + htab->brlt->output_section->vma);
9369 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
9374 dest = (br_entry->offset
9375 + htab->brlt->output_offset
9376 + htab->brlt->output_section->vma);
9379 - elf_gp (htab->brlt->output_section->owner)
9380 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9382 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
9384 (*_bfd_error_handler)
9385 (_("linkage table error against `%s'"),
9386 stub_entry->root.string);
9387 bfd_set_error (bfd_error_bad_value);
9388 htab->stub_error = TRUE;
9392 if (info->emitrelocations)
9394 r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0));
9397 r[0].r_offset = loc - stub_entry->stub_sec->contents;
9398 if (bfd_big_endian (info->output_bfd))
9400 if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
9402 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9403 r[0].r_addend = dest;
9404 if (PPC_HA (off) != 0)
9406 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
9407 r[1].r_offset = r[0].r_offset + 4;
9408 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9409 r[1].r_addend = r[0].r_addend;
9413 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
9415 if (PPC_HA (off) != 0)
9418 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
9420 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
9425 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
9432 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
9433 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9434 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
9437 if (PPC_HA (off) != 0)
9440 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
9442 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
9447 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
9451 if (PPC_HA (r2off) != 0)
9454 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
9457 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
9460 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
9462 bfd_put_32 (htab->stub_bfd, BCTR, loc);
9465 case ppc_stub_plt_call:
9466 if (stub_entry->h != NULL
9467 && stub_entry->h->is_func_descriptor
9468 && stub_entry->h->oh != NULL)
9470 struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh);
9472 /* If the old-ABI "dot-symbol" is undefined make it weak so
9473 we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL.
9474 FIXME: We used to define the symbol on one of the call
9475 stubs instead, which is why we test symbol section id
9476 against htab->top_id in various places. Likely all
9477 these checks could now disappear. */
9478 if (fh->elf.root.type == bfd_link_hash_undefined)
9479 fh->elf.root.type = bfd_link_hash_undefweak;
9482 /* Now build the stub. */
9483 dest = stub_entry->plt_ent->plt.offset & ~1;
9484 if (dest >= (bfd_vma) -2)
9488 if (!htab->elf.dynamic_sections_created
9489 || stub_entry->h == NULL
9490 || stub_entry->h->elf.dynindx == -1)
9493 dest += plt->output_offset + plt->output_section->vma;
9495 if (stub_entry->h == NULL
9496 && (stub_entry->plt_ent->plt.offset & 1) == 0)
9498 Elf_Internal_Rela rela;
9501 rela.r_offset = dest;
9502 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
9503 rela.r_addend = (stub_entry->target_value
9504 + stub_entry->target_section->output_offset
9505 + stub_entry->target_section->output_section->vma);
9507 rl = (htab->reliplt->contents
9508 + (htab->reliplt->reloc_count++
9509 * sizeof (Elf64_External_Rela)));
9510 bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl);
9511 stub_entry->plt_ent->plt.offset |= 1;
9515 - elf_gp (plt->output_section->owner)
9516 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9518 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
9520 (*_bfd_error_handler)
9521 (_("linkage table error against `%s'"),
9522 stub_entry->h != NULL
9523 ? stub_entry->h->elf.root.root.string
9525 bfd_set_error (bfd_error_bad_value);
9526 htab->stub_error = TRUE;
9531 if (info->emitrelocations)
9533 r = get_relocs (stub_entry->stub_sec,
9534 (2 + (PPC_HA (off) != 0)
9535 + (PPC_HA (off + 16) == PPC_HA (off))));
9538 r[0].r_offset = loc - stub_entry->stub_sec->contents;
9539 if (bfd_big_endian (info->output_bfd))
9541 r[0].r_addend = dest;
9543 if (stub_entry->h != NULL
9544 && (stub_entry->h == htab->tls_get_addr_fd
9545 || stub_entry->h == htab->tls_get_addr)
9546 && !htab->no_tls_get_addr_opt)
9547 p = build_tls_get_addr_stub (htab->stub_bfd, loc, off, r);
9549 p = build_plt_stub (htab->stub_bfd, loc, off, r);
9558 stub_entry->stub_sec->size += size;
9560 if (htab->emit_stub_syms)
9562 struct elf_link_hash_entry *h;
9565 const char *const stub_str[] = { "long_branch",
9566 "long_branch_r2off",
9571 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
9572 len2 = strlen (stub_entry->root.string);
9573 name = bfd_malloc (len1 + len2 + 2);
9576 memcpy (name, stub_entry->root.string, 9);
9577 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
9578 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
9579 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
9582 if (h->root.type == bfd_link_hash_new)
9584 h->root.type = bfd_link_hash_defined;
9585 h->root.u.def.section = stub_entry->stub_sec;
9586 h->root.u.def.value = stub_entry->stub_offset;
9589 h->ref_regular_nonweak = 1;
9590 h->forced_local = 1;
9598 /* As above, but don't actually build the stub. Just bump offset so
9599 we know stub section sizes, and select plt_branch stubs where
9600 long_branch stubs won't do. */
9603 ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
9605 struct ppc_stub_hash_entry *stub_entry;
9606 struct bfd_link_info *info;
9607 struct ppc_link_hash_table *htab;
9611 /* Massage our args to the form they really have. */
9612 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
9615 htab = ppc_hash_table (info);
9619 if (stub_entry->stub_type == ppc_stub_plt_call)
9622 off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1;
9623 if (off >= (bfd_vma) -2)
9626 if (!htab->elf.dynamic_sections_created
9627 || stub_entry->h == NULL
9628 || stub_entry->h->elf.dynindx == -1)
9630 off += (plt->output_offset
9631 + plt->output_section->vma
9632 - elf_gp (plt->output_section->owner)
9633 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9635 size = PLT_CALL_STUB_SIZE;
9636 if (PPC_HA (off) == 0)
9638 if (PPC_HA (off + 16) != PPC_HA (off))
9640 if (stub_entry->h != NULL
9641 && (stub_entry->h == htab->tls_get_addr_fd
9642 || stub_entry->h == htab->tls_get_addr)
9643 && !htab->no_tls_get_addr_opt)
9645 if (info->emitrelocations)
9647 stub_entry->stub_sec->reloc_count
9648 += 2 + (PPC_HA (off) != 0) + (PPC_HA (off + 16) == PPC_HA (off));
9649 stub_entry->stub_sec->flags |= SEC_RELOC;
9654 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
9658 off = (stub_entry->target_value
9659 + stub_entry->target_section->output_offset
9660 + stub_entry->target_section->output_section->vma);
9661 off -= (stub_entry->stub_sec->size
9662 + stub_entry->stub_sec->output_offset
9663 + stub_entry->stub_sec->output_section->vma);
9665 /* Reset the stub type from the plt variant in case we now
9666 can reach with a shorter stub. */
9667 if (stub_entry->stub_type >= ppc_stub_plt_branch)
9668 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
9671 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
9673 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
9674 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9676 if (PPC_HA (r2off) != 0)
9681 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
9682 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
9684 struct ppc_branch_hash_entry *br_entry;
9686 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
9687 stub_entry->root.string + 9,
9689 if (br_entry == NULL)
9691 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
9692 stub_entry->root.string);
9693 htab->stub_error = TRUE;
9697 if (br_entry->iter != htab->stub_iteration)
9699 br_entry->iter = htab->stub_iteration;
9700 br_entry->offset = htab->brlt->size;
9701 htab->brlt->size += 8;
9703 if (htab->relbrlt != NULL)
9704 htab->relbrlt->size += sizeof (Elf64_External_Rela);
9705 else if (info->emitrelocations)
9707 htab->brlt->reloc_count += 1;
9708 htab->brlt->flags |= SEC_RELOC;
9712 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
9713 off = (br_entry->offset
9714 + htab->brlt->output_offset
9715 + htab->brlt->output_section->vma
9716 - elf_gp (htab->brlt->output_section->owner)
9717 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9719 if (info->emitrelocations)
9721 stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0);
9722 stub_entry->stub_sec->flags |= SEC_RELOC;
9725 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
9728 if (PPC_HA (off) != 0)
9734 if (PPC_HA (off) != 0)
9737 if (PPC_HA (r2off) != 0)
9741 else if (info->emitrelocations)
9743 stub_entry->stub_sec->reloc_count += 1;
9744 stub_entry->stub_sec->flags |= SEC_RELOC;
9748 stub_entry->stub_sec->size += size;
9752 /* Set up various things so that we can make a list of input sections
9753 for each output section included in the link. Returns -1 on error,
9754 0 when no stubs will be needed, and 1 on success. */
9757 ppc64_elf_setup_section_lists
9758 (struct bfd_link_info *info,
9759 asection *(*add_stub_section) (const char *, asection *),
9760 void (*layout_sections_again) (void))
9763 int top_id, top_index, id;
9765 asection **input_list;
9767 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9771 /* Stash our params away. */
9772 htab->add_stub_section = add_stub_section;
9773 htab->layout_sections_again = layout_sections_again;
9775 if (htab->brlt == NULL)
9778 /* Find the top input section id. */
9779 for (input_bfd = info->input_bfds, top_id = 3;
9781 input_bfd = input_bfd->link_next)
9783 for (section = input_bfd->sections;
9785 section = section->next)
9787 if (top_id < section->id)
9788 top_id = section->id;
9792 htab->top_id = top_id;
9793 amt = sizeof (struct map_stub) * (top_id + 1);
9794 htab->stub_group = bfd_zmalloc (amt);
9795 if (htab->stub_group == NULL)
9798 /* Set toc_off for com, und, abs and ind sections. */
9799 for (id = 0; id < 3; id++)
9800 htab->stub_group[id].toc_off = TOC_BASE_OFF;
9802 /* We can't use output_bfd->section_count here to find the top output
9803 section index as some sections may have been removed, and
9804 strip_excluded_output_sections doesn't renumber the indices. */
9805 for (section = info->output_bfd->sections, top_index = 0;
9807 section = section->next)
9809 if (top_index < section->index)
9810 top_index = section->index;
9813 htab->top_index = top_index;
9814 amt = sizeof (asection *) * (top_index + 1);
9815 input_list = bfd_zmalloc (amt);
9816 htab->input_list = input_list;
9817 if (input_list == NULL)
9823 /* Set up for first pass at multitoc partitioning. */
9826 ppc64_elf_start_multitoc_partition (struct bfd_link_info *info)
9828 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9830 elf_gp (info->output_bfd) = ppc64_elf_toc (info->output_bfd);
9831 htab->toc_curr = elf_gp (info->output_bfd);
9832 htab->toc_bfd = NULL;
9833 htab->toc_first_sec = NULL;
9836 /* The linker repeatedly calls this function for each TOC input section
9837 and linker generated GOT section. Group input bfds such that the toc
9838 within a group is less than 64k in size. */
9841 ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
9843 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9844 bfd_vma addr, off, limit;
9849 if (!htab->second_toc_pass)
9851 /* Keep track of the first .toc or .got section for this input bfd. */
9852 if (htab->toc_bfd != isec->owner)
9854 htab->toc_bfd = isec->owner;
9855 htab->toc_first_sec = isec;
9858 addr = isec->output_offset + isec->output_section->vma;
9859 off = addr - htab->toc_curr;
9861 if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc)
9863 if (off + isec->size > limit)
9865 addr = (htab->toc_first_sec->output_offset
9866 + htab->toc_first_sec->output_section->vma);
9867 htab->toc_curr = addr;
9870 /* toc_curr is the base address of this toc group. Set elf_gp
9871 for the input section to be the offset relative to the
9872 output toc base plus 0x8000. Making the input elf_gp an
9873 offset allows us to move the toc as a whole without
9874 recalculating input elf_gp. */
9875 off = htab->toc_curr - elf_gp (isec->output_section->owner);
9876 off += TOC_BASE_OFF;
9878 /* Die if someone uses a linker script that doesn't keep input
9879 file .toc and .got together. */
9880 if (elf_gp (isec->owner) != 0
9881 && elf_gp (isec->owner) != off)
9884 elf_gp (isec->owner) = off;
9888 /* During the second pass toc_first_sec points to the start of
9889 a toc group, and toc_curr is used to track the old elf_gp.
9890 We use toc_bfd to ensure we only look at each bfd once. */
9891 if (htab->toc_bfd == isec->owner)
9893 htab->toc_bfd = isec->owner;
9895 if (htab->toc_first_sec == NULL
9896 || htab->toc_curr != elf_gp (isec->owner))
9898 htab->toc_curr = elf_gp (isec->owner);
9899 htab->toc_first_sec = isec;
9901 addr = (htab->toc_first_sec->output_offset
9902 + htab->toc_first_sec->output_section->vma);
9903 off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF;
9904 elf_gp (isec->owner) = off;
9909 /* Called via elf_link_hash_traverse to merge GOT entries for global
9913 merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9915 if (h->root.type == bfd_link_hash_indirect)
9918 if (h->root.type == bfd_link_hash_warning)
9919 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9921 merge_got_entries (&h->got.glist);
9926 /* Called via elf_link_hash_traverse to allocate GOT entries for global
9930 reallocate_got (struct elf_link_hash_entry *h, void *inf)
9932 struct got_entry *gent;
9934 if (h->root.type == bfd_link_hash_indirect)
9937 if (h->root.type == bfd_link_hash_warning)
9938 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9940 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9941 if (!gent->is_indirect)
9942 allocate_got (h, (struct bfd_link_info *) inf, gent);
9946 /* Called on the first multitoc pass after the last call to
9947 ppc64_elf_next_toc_section. This function removes duplicate GOT
9951 ppc64_elf_layout_multitoc (struct bfd_link_info *info)
9953 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9954 struct bfd *ibfd, *ibfd2;
9955 bfd_boolean done_something;
9957 htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd);
9959 if (!htab->do_multi_toc)
9962 /* Merge global sym got entries within a toc group. */
9963 elf_link_hash_traverse (&htab->elf, merge_global_got, info);
9965 /* And tlsld_got. */
9966 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
9968 struct got_entry *ent, *ent2;
9970 if (!is_ppc64_elf (ibfd))
9973 ent = ppc64_tlsld_got (ibfd);
9974 if (!ent->is_indirect
9975 && ent->got.offset != (bfd_vma) -1)
9977 for (ibfd2 = ibfd->link_next; ibfd2 != NULL; ibfd2 = ibfd2->link_next)
9979 if (!is_ppc64_elf (ibfd2))
9982 ent2 = ppc64_tlsld_got (ibfd2);
9983 if (!ent2->is_indirect
9984 && ent2->got.offset != (bfd_vma) -1
9985 && elf_gp (ibfd2) == elf_gp (ibfd))
9987 ent2->is_indirect = TRUE;
9988 ent2->got.ent = ent;
9994 /* Zap sizes of got sections. */
9995 htab->reliplt->rawsize = htab->reliplt->size;
9996 htab->reliplt->size -= htab->got_reli_size;
9997 htab->got_reli_size = 0;
9999 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10001 asection *got, *relgot;
10003 if (!is_ppc64_elf (ibfd))
10006 got = ppc64_elf_tdata (ibfd)->got;
10009 got->rawsize = got->size;
10011 relgot = ppc64_elf_tdata (ibfd)->relgot;
10012 relgot->rawsize = relgot->size;
10017 /* Now reallocate the got, local syms first. We don't need to
10018 allocate section contents again since we never increase size. */
10019 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10021 struct got_entry **lgot_ents;
10022 struct got_entry **end_lgot_ents;
10023 struct plt_entry **local_plt;
10024 struct plt_entry **end_local_plt;
10025 unsigned char *lgot_masks;
10026 bfd_size_type locsymcount;
10027 Elf_Internal_Shdr *symtab_hdr;
10028 asection *s, *srel;
10030 if (!is_ppc64_elf (ibfd))
10033 lgot_ents = elf_local_got_ents (ibfd);
10037 symtab_hdr = &elf_symtab_hdr (ibfd);
10038 locsymcount = symtab_hdr->sh_info;
10039 end_lgot_ents = lgot_ents + locsymcount;
10040 local_plt = (struct plt_entry **) end_lgot_ents;
10041 end_local_plt = local_plt + locsymcount;
10042 lgot_masks = (unsigned char *) end_local_plt;
10043 s = ppc64_elf_tdata (ibfd)->got;
10044 srel = ppc64_elf_tdata (ibfd)->relgot;
10045 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
10047 struct got_entry *ent;
10049 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
10051 unsigned int num = 1;
10052 ent->got.offset = s->size;
10053 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
10055 s->size += num * 8;
10057 srel->size += num * sizeof (Elf64_External_Rela);
10058 else if ((*lgot_masks & PLT_IFUNC) != 0)
10060 htab->reliplt->size
10061 += num * sizeof (Elf64_External_Rela);
10062 htab->got_reli_size
10063 += num * sizeof (Elf64_External_Rela);
10069 elf_link_hash_traverse (&htab->elf, reallocate_got, info);
10071 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10073 struct got_entry *ent;
10075 if (!is_ppc64_elf (ibfd))
10078 ent = ppc64_tlsld_got (ibfd);
10079 if (!ent->is_indirect
10080 && ent->got.offset != (bfd_vma) -1)
10082 asection *s = ppc64_elf_tdata (ibfd)->got;
10083 ent->got.offset = s->size;
10087 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
10088 srel->size += sizeof (Elf64_External_Rela);
10093 done_something = htab->reliplt->rawsize != htab->reliplt->size;
10094 if (!done_something)
10095 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10099 if (!is_ppc64_elf (ibfd))
10102 got = ppc64_elf_tdata (ibfd)->got;
10105 done_something = got->rawsize != got->size;
10106 if (done_something)
10111 if (done_something)
10112 (*htab->layout_sections_again) ();
10114 /* Set up for second pass over toc sections to recalculate elf_gp
10115 on input sections. */
10116 htab->toc_bfd = NULL;
10117 htab->toc_first_sec = NULL;
10118 htab->second_toc_pass = TRUE;
10119 return done_something;
10122 /* Called after second pass of multitoc partitioning. */
10125 ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info)
10127 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10129 /* After the second pass, toc_curr tracks the TOC offset used
10130 for code sections below in ppc64_elf_next_input_section. */
10131 htab->toc_curr = TOC_BASE_OFF;
10134 /* No toc references were found in ISEC. If the code in ISEC makes no
10135 calls, then there's no need to use toc adjusting stubs when branching
10136 into ISEC. Actually, indirect calls from ISEC are OK as they will
10137 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
10138 needed, and 2 if a cyclical call-graph was found but no other reason
10139 for a stub was detected. If called from the top level, a return of
10140 2 means the same as a return of 0. */
10143 toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
10147 /* Mark this section as checked. */
10148 isec->call_check_done = 1;
10150 /* We know none of our code bearing sections will need toc stubs. */
10151 if ((isec->flags & SEC_LINKER_CREATED) != 0)
10154 if (isec->size == 0)
10157 if (isec->output_section == NULL)
10161 if (isec->reloc_count != 0)
10163 Elf_Internal_Rela *relstart, *rel;
10164 Elf_Internal_Sym *local_syms;
10165 struct ppc_link_hash_table *htab;
10167 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
10168 info->keep_memory);
10169 if (relstart == NULL)
10172 /* Look for branches to outside of this section. */
10174 htab = ppc_hash_table (info);
10178 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
10180 enum elf_ppc64_reloc_type r_type;
10181 unsigned long r_symndx;
10182 struct elf_link_hash_entry *h;
10183 struct ppc_link_hash_entry *eh;
10184 Elf_Internal_Sym *sym;
10186 struct _opd_sec_data *opd;
10190 r_type = ELF64_R_TYPE (rel->r_info);
10191 if (r_type != R_PPC64_REL24
10192 && r_type != R_PPC64_REL14
10193 && r_type != R_PPC64_REL14_BRTAKEN
10194 && r_type != R_PPC64_REL14_BRNTAKEN)
10197 r_symndx = ELF64_R_SYM (rel->r_info);
10198 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
10205 /* Calls to dynamic lib functions go through a plt call stub
10207 eh = (struct ppc_link_hash_entry *) h;
10209 && (eh->elf.plt.plist != NULL
10211 && ppc_follow_link (eh->oh)->elf.plt.plist != NULL)))
10217 if (sym_sec == NULL)
10218 /* Ignore other undefined symbols. */
10221 /* Assume branches to other sections not included in the
10222 link need stubs too, to cover -R and absolute syms. */
10223 if (sym_sec->output_section == NULL)
10230 sym_value = sym->st_value;
10233 if (h->root.type != bfd_link_hash_defined
10234 && h->root.type != bfd_link_hash_defweak)
10236 sym_value = h->root.u.def.value;
10238 sym_value += rel->r_addend;
10240 /* If this branch reloc uses an opd sym, find the code section. */
10241 opd = get_opd_info (sym_sec);
10244 if (h == NULL && opd->adjust != NULL)
10248 adjust = opd->adjust[sym->st_value / 8];
10250 /* Assume deleted functions won't ever be called. */
10252 sym_value += adjust;
10255 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
10256 if (dest == (bfd_vma) -1)
10261 + sym_sec->output_offset
10262 + sym_sec->output_section->vma);
10264 /* Ignore branch to self. */
10265 if (sym_sec == isec)
10268 /* If the called function uses the toc, we need a stub. */
10269 if (sym_sec->has_toc_reloc
10270 || sym_sec->makes_toc_func_call)
10276 /* Assume any branch that needs a long branch stub might in fact
10277 need a plt_branch stub. A plt_branch stub uses r2. */
10278 else if (dest - (isec->output_offset
10279 + isec->output_section->vma
10280 + rel->r_offset) + (1 << 25) >= (2 << 25))
10286 /* If calling back to a section in the process of being
10287 tested, we can't say for sure that no toc adjusting stubs
10288 are needed, so don't return zero. */
10289 else if (sym_sec->call_check_in_progress)
10292 /* Branches to another section that itself doesn't have any TOC
10293 references are OK. Recursively call ourselves to check. */
10294 else if (!sym_sec->call_check_done)
10298 /* Mark current section as indeterminate, so that other
10299 sections that call back to current won't be marked as
10301 isec->call_check_in_progress = 1;
10302 recur = toc_adjusting_stub_needed (info, sym_sec);
10303 isec->call_check_in_progress = 0;
10314 if (local_syms != NULL
10315 && (elf_symtab_hdr (isec->owner).contents
10316 != (unsigned char *) local_syms))
10318 if (elf_section_data (isec)->relocs != relstart)
10323 && isec->map_head.s != NULL
10324 && (strcmp (isec->output_section->name, ".init") == 0
10325 || strcmp (isec->output_section->name, ".fini") == 0))
10327 if (isec->map_head.s->has_toc_reloc
10328 || isec->map_head.s->makes_toc_func_call)
10330 else if (!isec->map_head.s->call_check_done)
10333 isec->call_check_in_progress = 1;
10334 recur = toc_adjusting_stub_needed (info, isec->map_head.s);
10335 isec->call_check_in_progress = 0;
10342 isec->makes_toc_func_call = 1;
10347 /* The linker repeatedly calls this function for each input section,
10348 in the order that input sections are linked into output sections.
10349 Build lists of input sections to determine groupings between which
10350 we may insert linker stubs. */
10353 ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
10355 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10360 if ((isec->output_section->flags & SEC_CODE) != 0
10361 && isec->output_section->index <= htab->top_index)
10363 asection **list = htab->input_list + isec->output_section->index;
10364 /* Steal the link_sec pointer for our list. */
10365 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
10366 /* This happens to make the list in reverse order,
10367 which is what we want. */
10368 PREV_SEC (isec) = *list;
10372 if (htab->multi_toc_needed)
10374 /* If a code section has a function that uses the TOC then we need
10375 to use the right TOC (obviously). Also, make sure that .opd gets
10376 the correct TOC value for R_PPC64_TOC relocs that don't have or
10377 can't find their function symbol (shouldn't ever happen now).
10378 Also specially treat .fixup for the linux kernel. .fixup
10379 contains branches, but only back to the function that hit an
10381 if (isec->has_toc_reloc
10382 || (isec->flags & SEC_CODE) == 0
10383 || strcmp (isec->name, ".fixup") == 0)
10385 if (elf_gp (isec->owner) != 0)
10386 htab->toc_curr = elf_gp (isec->owner);
10388 else if (!isec->call_check_done
10389 && toc_adjusting_stub_needed (info, isec) < 0)
10393 /* Functions that don't use the TOC can belong in any TOC group.
10394 Use the last TOC base. This happens to make _init and _fini
10395 pasting work, because the fragments generally don't use the TOC. */
10396 htab->stub_group[isec->id].toc_off = htab->toc_curr;
10400 /* Check that all .init and .fini sections use the same toc, if they
10401 have toc relocs. */
10404 check_pasted_section (struct bfd_link_info *info, const char *name)
10406 asection *o = bfd_get_section_by_name (info->output_bfd, name);
10410 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10411 bfd_vma toc_off = 0;
10414 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
10415 if (i->has_toc_reloc)
10418 toc_off = htab->stub_group[i->id].toc_off;
10419 else if (toc_off != htab->stub_group[i->id].toc_off)
10422 /* Make sure the whole pasted function uses the same toc offset. */
10424 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
10425 htab->stub_group[i->id].toc_off = toc_off;
10431 ppc64_elf_check_init_fini (struct bfd_link_info *info)
10433 return (check_pasted_section (info, ".init")
10434 & check_pasted_section (info, ".fini"));
10437 /* See whether we can group stub sections together. Grouping stub
10438 sections may result in fewer stubs. More importantly, we need to
10439 put all .init* and .fini* stubs at the beginning of the .init or
10440 .fini output sections respectively, because glibc splits the
10441 _init and _fini functions into multiple parts. Putting a stub in
10442 the middle of a function is not a good idea. */
10445 group_sections (struct ppc_link_hash_table *htab,
10446 bfd_size_type stub_group_size,
10447 bfd_boolean stubs_always_before_branch)
10450 bfd_size_type stub14_group_size;
10451 bfd_boolean suppress_size_errors;
10453 suppress_size_errors = FALSE;
10454 stub14_group_size = stub_group_size;
10455 if (stub_group_size == 1)
10457 /* Default values. */
10458 if (stubs_always_before_branch)
10460 stub_group_size = 0x1e00000;
10461 stub14_group_size = 0x7800;
10465 stub_group_size = 0x1c00000;
10466 stub14_group_size = 0x7000;
10468 suppress_size_errors = TRUE;
10471 list = htab->input_list + htab->top_index;
10474 asection *tail = *list;
10475 while (tail != NULL)
10479 bfd_size_type total;
10480 bfd_boolean big_sec;
10484 total = tail->size;
10485 big_sec = total > (ppc64_elf_section_data (tail)->has_14bit_branch
10486 ? stub14_group_size : stub_group_size);
10487 if (big_sec && !suppress_size_errors)
10488 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
10489 tail->owner, tail);
10490 curr_toc = htab->stub_group[tail->id].toc_off;
10492 while ((prev = PREV_SEC (curr)) != NULL
10493 && ((total += curr->output_offset - prev->output_offset)
10494 < (ppc64_elf_section_data (prev)->has_14bit_branch
10495 ? stub14_group_size : stub_group_size))
10496 && htab->stub_group[prev->id].toc_off == curr_toc)
10499 /* OK, the size from the start of CURR to the end is less
10500 than stub_group_size and thus can be handled by one stub
10501 section. (or the tail section is itself larger than
10502 stub_group_size, in which case we may be toast.) We
10503 should really be keeping track of the total size of stubs
10504 added here, as stubs contribute to the final output
10505 section size. That's a little tricky, and this way will
10506 only break if stubs added make the total size more than
10507 2^25, ie. for the default stub_group_size, if stubs total
10508 more than 2097152 bytes, or nearly 75000 plt call stubs. */
10511 prev = PREV_SEC (tail);
10512 /* Set up this stub group. */
10513 htab->stub_group[tail->id].link_sec = curr;
10515 while (tail != curr && (tail = prev) != NULL);
10517 /* But wait, there's more! Input sections up to stub_group_size
10518 bytes before the stub section can be handled by it too.
10519 Don't do this if we have a really large section after the
10520 stubs, as adding more stubs increases the chance that
10521 branches may not reach into the stub section. */
10522 if (!stubs_always_before_branch && !big_sec)
10525 while (prev != NULL
10526 && ((total += tail->output_offset - prev->output_offset)
10527 < (ppc64_elf_section_data (prev)->has_14bit_branch
10528 ? stub14_group_size : stub_group_size))
10529 && htab->stub_group[prev->id].toc_off == curr_toc)
10532 prev = PREV_SEC (tail);
10533 htab->stub_group[tail->id].link_sec = curr;
10539 while (list-- != htab->input_list);
10540 free (htab->input_list);
10544 /* Determine and set the size of the stub section for a final link.
10546 The basic idea here is to examine all the relocations looking for
10547 PC-relative calls to a target that is unreachable with a "bl"
10551 ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size)
10553 bfd_size_type stub_group_size;
10554 bfd_boolean stubs_always_before_branch;
10555 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10560 stubs_always_before_branch = group_size < 0;
10561 if (group_size < 0)
10562 stub_group_size = -group_size;
10564 stub_group_size = group_size;
10566 group_sections (htab, stub_group_size, stubs_always_before_branch);
10571 unsigned int bfd_indx;
10572 asection *stub_sec;
10574 htab->stub_iteration += 1;
10576 for (input_bfd = info->input_bfds, bfd_indx = 0;
10578 input_bfd = input_bfd->link_next, bfd_indx++)
10580 Elf_Internal_Shdr *symtab_hdr;
10582 Elf_Internal_Sym *local_syms = NULL;
10584 if (!is_ppc64_elf (input_bfd))
10587 /* We'll need the symbol table in a second. */
10588 symtab_hdr = &elf_symtab_hdr (input_bfd);
10589 if (symtab_hdr->sh_info == 0)
10592 /* Walk over each section attached to the input bfd. */
10593 for (section = input_bfd->sections;
10595 section = section->next)
10597 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
10599 /* If there aren't any relocs, then there's nothing more
10601 if ((section->flags & SEC_RELOC) == 0
10602 || (section->flags & SEC_ALLOC) == 0
10603 || (section->flags & SEC_LOAD) == 0
10604 || (section->flags & SEC_CODE) == 0
10605 || section->reloc_count == 0)
10608 /* If this section is a link-once section that will be
10609 discarded, then don't create any stubs. */
10610 if (section->output_section == NULL
10611 || section->output_section->owner != info->output_bfd)
10614 /* Get the relocs. */
10616 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
10617 info->keep_memory);
10618 if (internal_relocs == NULL)
10619 goto error_ret_free_local;
10621 /* Now examine each relocation. */
10622 irela = internal_relocs;
10623 irelaend = irela + section->reloc_count;
10624 for (; irela < irelaend; irela++)
10626 enum elf_ppc64_reloc_type r_type;
10627 unsigned int r_indx;
10628 enum ppc_stub_type stub_type;
10629 struct ppc_stub_hash_entry *stub_entry;
10630 asection *sym_sec, *code_sec;
10631 bfd_vma sym_value, code_value;
10632 bfd_vma destination;
10633 bfd_boolean ok_dest;
10634 struct ppc_link_hash_entry *hash;
10635 struct ppc_link_hash_entry *fdh;
10636 struct elf_link_hash_entry *h;
10637 Elf_Internal_Sym *sym;
10639 const asection *id_sec;
10640 struct _opd_sec_data *opd;
10641 struct plt_entry *plt_ent;
10643 r_type = ELF64_R_TYPE (irela->r_info);
10644 r_indx = ELF64_R_SYM (irela->r_info);
10646 if (r_type >= R_PPC64_max)
10648 bfd_set_error (bfd_error_bad_value);
10649 goto error_ret_free_internal;
10652 /* Only look for stubs on branch instructions. */
10653 if (r_type != R_PPC64_REL24
10654 && r_type != R_PPC64_REL14
10655 && r_type != R_PPC64_REL14_BRTAKEN
10656 && r_type != R_PPC64_REL14_BRNTAKEN)
10659 /* Now determine the call target, its name, value,
10661 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
10662 r_indx, input_bfd))
10663 goto error_ret_free_internal;
10664 hash = (struct ppc_link_hash_entry *) h;
10671 sym_value = sym->st_value;
10674 else if (hash->elf.root.type == bfd_link_hash_defined
10675 || hash->elf.root.type == bfd_link_hash_defweak)
10677 sym_value = hash->elf.root.u.def.value;
10678 if (sym_sec->output_section != NULL)
10681 else if (hash->elf.root.type == bfd_link_hash_undefweak
10682 || hash->elf.root.type == bfd_link_hash_undefined)
10684 /* Recognise an old ABI func code entry sym, and
10685 use the func descriptor sym instead if it is
10687 if (hash->elf.root.root.string[0] == '.'
10688 && (fdh = lookup_fdh (hash, htab)) != NULL)
10690 if (fdh->elf.root.type == bfd_link_hash_defined
10691 || fdh->elf.root.type == bfd_link_hash_defweak)
10693 sym_sec = fdh->elf.root.u.def.section;
10694 sym_value = fdh->elf.root.u.def.value;
10695 if (sym_sec->output_section != NULL)
10704 bfd_set_error (bfd_error_bad_value);
10705 goto error_ret_free_internal;
10711 sym_value += irela->r_addend;
10712 destination = (sym_value
10713 + sym_sec->output_offset
10714 + sym_sec->output_section->vma);
10717 code_sec = sym_sec;
10718 code_value = sym_value;
10719 opd = get_opd_info (sym_sec);
10724 if (hash == NULL && opd->adjust != NULL)
10726 long adjust = opd->adjust[sym_value / 8];
10729 code_value += adjust;
10730 sym_value += adjust;
10732 dest = opd_entry_value (sym_sec, sym_value,
10733 &code_sec, &code_value);
10734 if (dest != (bfd_vma) -1)
10736 destination = dest;
10739 /* Fixup old ABI sym to point at code
10741 hash->elf.root.type = bfd_link_hash_defweak;
10742 hash->elf.root.u.def.section = code_sec;
10743 hash->elf.root.u.def.value = code_value;
10748 /* Determine what (if any) linker stub is needed. */
10750 stub_type = ppc_type_of_stub (section, irela, &hash,
10751 &plt_ent, destination);
10753 if (stub_type != ppc_stub_plt_call)
10755 /* Check whether we need a TOC adjusting stub.
10756 Since the linker pastes together pieces from
10757 different object files when creating the
10758 _init and _fini functions, it may be that a
10759 call to what looks like a local sym is in
10760 fact a call needing a TOC adjustment. */
10761 if (code_sec != NULL
10762 && code_sec->output_section != NULL
10763 && (htab->stub_group[code_sec->id].toc_off
10764 != htab->stub_group[section->id].toc_off)
10765 && (code_sec->has_toc_reloc
10766 || code_sec->makes_toc_func_call))
10767 stub_type = ppc_stub_long_branch_r2off;
10770 if (stub_type == ppc_stub_none)
10773 /* __tls_get_addr calls might be eliminated. */
10774 if (stub_type != ppc_stub_plt_call
10776 && (hash == htab->tls_get_addr
10777 || hash == htab->tls_get_addr_fd)
10778 && section->has_tls_reloc
10779 && irela != internal_relocs)
10781 /* Get tls info. */
10782 unsigned char *tls_mask;
10784 if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms,
10785 irela - 1, input_bfd))
10786 goto error_ret_free_internal;
10787 if (*tls_mask != 0)
10791 /* Support for grouping stub sections. */
10792 id_sec = htab->stub_group[section->id].link_sec;
10794 /* Get the name of this stub. */
10795 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
10797 goto error_ret_free_internal;
10799 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
10800 stub_name, FALSE, FALSE);
10801 if (stub_entry != NULL)
10803 /* The proper stub has already been created. */
10808 stub_entry = ppc_add_stub (stub_name, section, htab);
10809 if (stub_entry == NULL)
10812 error_ret_free_internal:
10813 if (elf_section_data (section)->relocs == NULL)
10814 free (internal_relocs);
10815 error_ret_free_local:
10816 if (local_syms != NULL
10817 && (symtab_hdr->contents
10818 != (unsigned char *) local_syms))
10823 stub_entry->stub_type = stub_type;
10824 if (stub_type != ppc_stub_plt_call)
10826 stub_entry->target_value = code_value;
10827 stub_entry->target_section = code_sec;
10831 stub_entry->target_value = sym_value;
10832 stub_entry->target_section = sym_sec;
10834 stub_entry->h = hash;
10835 stub_entry->plt_ent = plt_ent;
10836 stub_entry->addend = irela->r_addend;
10838 if (stub_entry->h != NULL)
10839 htab->stub_globals += 1;
10842 /* We're done with the internal relocs, free them. */
10843 if (elf_section_data (section)->relocs != internal_relocs)
10844 free (internal_relocs);
10847 if (local_syms != NULL
10848 && symtab_hdr->contents != (unsigned char *) local_syms)
10850 if (!info->keep_memory)
10853 symtab_hdr->contents = (unsigned char *) local_syms;
10857 /* We may have added some stubs. Find out the new size of the
10859 for (stub_sec = htab->stub_bfd->sections;
10861 stub_sec = stub_sec->next)
10862 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
10864 stub_sec->rawsize = stub_sec->size;
10865 stub_sec->size = 0;
10866 stub_sec->reloc_count = 0;
10867 stub_sec->flags &= ~SEC_RELOC;
10870 htab->brlt->size = 0;
10871 htab->brlt->reloc_count = 0;
10872 htab->brlt->flags &= ~SEC_RELOC;
10873 if (htab->relbrlt != NULL)
10874 htab->relbrlt->size = 0;
10876 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
10878 if (info->emitrelocations
10879 && htab->glink != NULL && htab->glink->size != 0)
10881 htab->glink->reloc_count = 1;
10882 htab->glink->flags |= SEC_RELOC;
10885 for (stub_sec = htab->stub_bfd->sections;
10887 stub_sec = stub_sec->next)
10888 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
10889 && stub_sec->rawsize != stub_sec->size)
10892 /* Exit from this loop when no stubs have been added, and no stubs
10893 have changed size. */
10894 if (stub_sec == NULL)
10897 /* Ask the linker to do its stuff. */
10898 (*htab->layout_sections_again) ();
10901 /* It would be nice to strip htab->brlt from the output if the
10902 section is empty, but it's too late. If we strip sections here,
10903 the dynamic symbol table is corrupted since the section symbol
10904 for the stripped section isn't written. */
10909 /* Called after we have determined section placement. If sections
10910 move, we'll be called again. Provide a value for TOCstart. */
10913 ppc64_elf_toc (bfd *obfd)
10918 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
10919 order. The TOC starts where the first of these sections starts. */
10920 s = bfd_get_section_by_name (obfd, ".got");
10921 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
10922 s = bfd_get_section_by_name (obfd, ".toc");
10923 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
10924 s = bfd_get_section_by_name (obfd, ".tocbss");
10925 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
10926 s = bfd_get_section_by_name (obfd, ".plt");
10927 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
10929 /* This may happen for
10930 o references to TOC base (SYM@toc / TOC[tc0]) without a
10932 o bad linker script
10933 o --gc-sections and empty TOC sections
10935 FIXME: Warn user? */
10937 /* Look for a likely section. We probably won't even be
10939 for (s = obfd->sections; s != NULL; s = s->next)
10940 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY
10942 == (SEC_ALLOC | SEC_SMALL_DATA))
10945 for (s = obfd->sections; s != NULL; s = s->next)
10946 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE))
10947 == (SEC_ALLOC | SEC_SMALL_DATA))
10950 for (s = obfd->sections; s != NULL; s = s->next)
10951 if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE))
10955 for (s = obfd->sections; s != NULL; s = s->next)
10956 if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC)
10962 TOCstart = s->output_section->vma + s->output_offset;
10967 /* Build all the stubs associated with the current output file.
10968 The stubs are kept in a hash table attached to the main linker
10969 hash table. This function is called via gldelf64ppc_finish. */
10972 ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
10973 struct bfd_link_info *info,
10976 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10977 asection *stub_sec;
10979 int stub_sec_count = 0;
10984 htab->emit_stub_syms = emit_stub_syms;
10986 /* Allocate memory to hold the linker stubs. */
10987 for (stub_sec = htab->stub_bfd->sections;
10989 stub_sec = stub_sec->next)
10990 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
10991 && stub_sec->size != 0)
10993 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
10994 if (stub_sec->contents == NULL)
10996 /* We want to check that built size is the same as calculated
10997 size. rawsize is a convenient location to use. */
10998 stub_sec->rawsize = stub_sec->size;
10999 stub_sec->size = 0;
11002 if (htab->glink != NULL && htab->glink->size != 0)
11007 /* Build the .glink plt call stub. */
11008 if (htab->emit_stub_syms)
11010 struct elf_link_hash_entry *h;
11011 h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
11012 TRUE, FALSE, FALSE);
11015 if (h->root.type == bfd_link_hash_new)
11017 h->root.type = bfd_link_hash_defined;
11018 h->root.u.def.section = htab->glink;
11019 h->root.u.def.value = 8;
11020 h->ref_regular = 1;
11021 h->def_regular = 1;
11022 h->ref_regular_nonweak = 1;
11023 h->forced_local = 1;
11027 plt0 = htab->plt->output_section->vma + htab->plt->output_offset - 16;
11028 if (info->emitrelocations)
11030 Elf_Internal_Rela *r = get_relocs (htab->glink, 1);
11033 r->r_offset = (htab->glink->output_offset
11034 + htab->glink->output_section->vma);
11035 r->r_info = ELF64_R_INFO (0, R_PPC64_REL64);
11036 r->r_addend = plt0;
11038 p = htab->glink->contents;
11039 plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
11040 bfd_put_64 (htab->glink->owner, plt0, p);
11042 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
11044 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
11046 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
11048 bfd_put_32 (htab->glink->owner, LD_R2_M16R11, p);
11050 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
11052 bfd_put_32 (htab->glink->owner, ADD_R12_R2_R11, p);
11054 bfd_put_32 (htab->glink->owner, LD_R11_0R12, p);
11056 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
11058 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
11060 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
11062 bfd_put_32 (htab->glink->owner, BCTR, p);
11064 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
11066 bfd_put_32 (htab->glink->owner, NOP, p);
11070 /* Build the .glink lazy link call stubs. */
11072 while (p < htab->glink->contents + htab->glink->size)
11076 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
11081 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
11083 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
11086 bfd_put_32 (htab->glink->owner,
11087 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
11091 htab->glink->rawsize = p - htab->glink->contents;
11094 if (htab->brlt->size != 0)
11096 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
11098 if (htab->brlt->contents == NULL)
11101 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
11103 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
11104 htab->relbrlt->size);
11105 if (htab->relbrlt->contents == NULL)
11109 /* Build the stubs as directed by the stub hash table. */
11110 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
11112 if (htab->relbrlt != NULL)
11113 htab->relbrlt->reloc_count = 0;
11115 for (stub_sec = htab->stub_bfd->sections;
11117 stub_sec = stub_sec->next)
11118 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
11120 stub_sec_count += 1;
11121 if (stub_sec->rawsize != stub_sec->size)
11125 if (stub_sec != NULL
11126 || htab->glink->rawsize != htab->glink->size)
11128 htab->stub_error = TRUE;
11129 (*_bfd_error_handler) (_("stubs don't match calculated size"));
11132 if (htab->stub_error)
11137 *stats = bfd_malloc (500);
11138 if (*stats == NULL)
11141 sprintf (*stats, _("linker stubs in %u group%s\n"
11143 " toc adjust %lu\n"
11144 " long branch %lu\n"
11145 " long toc adj %lu\n"
11148 stub_sec_count == 1 ? "" : "s",
11149 htab->stub_count[ppc_stub_long_branch - 1],
11150 htab->stub_count[ppc_stub_long_branch_r2off - 1],
11151 htab->stub_count[ppc_stub_plt_branch - 1],
11152 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
11153 htab->stub_count[ppc_stub_plt_call - 1]);
11158 /* This function undoes the changes made by add_symbol_adjust. */
11161 undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
11163 struct ppc_link_hash_entry *eh;
11165 if (h->root.type == bfd_link_hash_indirect)
11168 if (h->root.type == bfd_link_hash_warning)
11169 h = (struct elf_link_hash_entry *) h->root.u.i.link;
11171 eh = (struct ppc_link_hash_entry *) h;
11172 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
11175 eh->elf.root.type = bfd_link_hash_undefined;
11180 ppc64_elf_restore_symbols (struct bfd_link_info *info)
11182 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11185 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
11188 /* What to do when ld finds relocations against symbols defined in
11189 discarded sections. */
11191 static unsigned int
11192 ppc64_elf_action_discarded (asection *sec)
11194 if (strcmp (".opd", sec->name) == 0)
11197 if (strcmp (".toc", sec->name) == 0)
11200 if (strcmp (".toc1", sec->name) == 0)
11203 return _bfd_elf_default_action_discarded (sec);
11206 /* The RELOCATE_SECTION function is called by the ELF backend linker
11207 to handle the relocations for a section.
11209 The relocs are always passed as Rela structures; if the section
11210 actually uses Rel structures, the r_addend field will always be
11213 This function is responsible for adjust the section contents as
11214 necessary, and (if using Rela relocs and generating a
11215 relocatable output file) adjusting the reloc addend as
11218 This function does not have to worry about setting the reloc
11219 address or the reloc symbol index.
11221 LOCAL_SYMS is a pointer to the swapped in local symbols.
11223 LOCAL_SECTIONS is an array giving the section in the input file
11224 corresponding to the st_shndx field of each local symbol.
11226 The global hash table entry for the global symbols can be found
11227 via elf_sym_hashes (input_bfd).
11229 When generating relocatable output, this function must handle
11230 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
11231 going to be the section symbol corresponding to the output
11232 section, which means that the addend must be adjusted
11236 ppc64_elf_relocate_section (bfd *output_bfd,
11237 struct bfd_link_info *info,
11239 asection *input_section,
11240 bfd_byte *contents,
11241 Elf_Internal_Rela *relocs,
11242 Elf_Internal_Sym *local_syms,
11243 asection **local_sections)
11245 struct ppc_link_hash_table *htab;
11246 Elf_Internal_Shdr *symtab_hdr;
11247 struct elf_link_hash_entry **sym_hashes;
11248 Elf_Internal_Rela *rel;
11249 Elf_Internal_Rela *relend;
11250 Elf_Internal_Rela outrel;
11252 struct got_entry **local_got_ents;
11254 bfd_boolean ret = TRUE;
11255 bfd_boolean is_opd;
11256 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
11257 bfd_boolean is_power4 = FALSE;
11258 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
11260 /* Initialize howto table if needed. */
11261 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
11264 htab = ppc_hash_table (info);
11268 /* Don't relocate stub sections. */
11269 if (input_section->owner == htab->stub_bfd)
11272 BFD_ASSERT (is_ppc64_elf (input_bfd));
11274 local_got_ents = elf_local_got_ents (input_bfd);
11275 TOCstart = elf_gp (output_bfd);
11276 symtab_hdr = &elf_symtab_hdr (input_bfd);
11277 sym_hashes = elf_sym_hashes (input_bfd);
11278 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
11281 relend = relocs + input_section->reloc_count;
11282 for (; rel < relend; rel++)
11284 enum elf_ppc64_reloc_type r_type;
11285 bfd_vma addend, orig_addend;
11286 bfd_reloc_status_type r;
11287 Elf_Internal_Sym *sym;
11289 struct elf_link_hash_entry *h_elf;
11290 struct ppc_link_hash_entry *h;
11291 struct ppc_link_hash_entry *fdh;
11292 const char *sym_name;
11293 unsigned long r_symndx, toc_symndx;
11294 bfd_vma toc_addend;
11295 unsigned char tls_mask, tls_gd, tls_type;
11296 unsigned char sym_type;
11297 bfd_vma relocation;
11298 bfd_boolean unresolved_reloc;
11299 bfd_boolean warned;
11300 unsigned long insn, mask;
11301 struct ppc_stub_hash_entry *stub_entry;
11302 bfd_vma max_br_offset;
11305 r_type = ELF64_R_TYPE (rel->r_info);
11306 r_symndx = ELF64_R_SYM (rel->r_info);
11308 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
11309 symbol of the previous ADDR64 reloc. The symbol gives us the
11310 proper TOC base to use. */
11311 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
11313 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
11315 r_symndx = ELF64_R_SYM (rel[-1].r_info);
11321 unresolved_reloc = FALSE;
11323 orig_addend = rel->r_addend;
11325 if (r_symndx < symtab_hdr->sh_info)
11327 /* It's a local symbol. */
11328 struct _opd_sec_data *opd;
11330 sym = local_syms + r_symndx;
11331 sec = local_sections[r_symndx];
11332 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
11333 sym_type = ELF64_ST_TYPE (sym->st_info);
11334 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
11335 opd = get_opd_info (sec);
11336 if (opd != NULL && opd->adjust != NULL)
11338 long adjust = opd->adjust[(sym->st_value + rel->r_addend) / 8];
11343 /* If this is a relocation against the opd section sym
11344 and we have edited .opd, adjust the reloc addend so
11345 that ld -r and ld --emit-relocs output is correct.
11346 If it is a reloc against some other .opd symbol,
11347 then the symbol value will be adjusted later. */
11348 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
11349 rel->r_addend += adjust;
11351 relocation += adjust;
11357 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
11358 r_symndx, symtab_hdr, sym_hashes,
11359 h_elf, sec, relocation,
11360 unresolved_reloc, warned);
11361 sym_name = h_elf->root.root.string;
11362 sym_type = h_elf->type;
11364 h = (struct ppc_link_hash_entry *) h_elf;
11366 if (sec != NULL && elf_discarded_section (sec))
11368 /* For relocs against symbols from removed linkonce sections,
11369 or sections discarded by a linker script, we just want the
11370 section contents zeroed. Avoid any special processing. */
11371 _bfd_clear_contents (ppc64_elf_howto_table[r_type], input_bfd,
11372 contents + rel->r_offset);
11378 if (info->relocatable)
11381 /* TLS optimizations. Replace instruction sequences and relocs
11382 based on information we collected in tls_optimize. We edit
11383 RELOCS so that --emit-relocs will output something sensible
11384 for the final instruction stream. */
11389 tls_mask = h->tls_mask;
11390 else if (local_got_ents != NULL)
11392 struct plt_entry **local_plt = (struct plt_entry **)
11393 (local_got_ents + symtab_hdr->sh_info);
11394 unsigned char *lgot_masks = (unsigned char *)
11395 (local_plt + symtab_hdr->sh_info);
11396 tls_mask = lgot_masks[r_symndx];
11399 && (r_type == R_PPC64_TLS
11400 || r_type == R_PPC64_TLSGD
11401 || r_type == R_PPC64_TLSLD))
11403 /* Check for toc tls entries. */
11404 unsigned char *toc_tls;
11406 if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
11407 &local_syms, rel, input_bfd))
11411 tls_mask = *toc_tls;
11414 /* Check that tls relocs are used with tls syms, and non-tls
11415 relocs are used with non-tls syms. */
11417 && r_type != R_PPC64_NONE
11419 || h->elf.root.type == bfd_link_hash_defined
11420 || h->elf.root.type == bfd_link_hash_defweak)
11421 && (IS_PPC64_TLS_RELOC (r_type)
11422 != (sym_type == STT_TLS
11423 || (sym_type == STT_SECTION
11424 && (sec->flags & SEC_THREAD_LOCAL) != 0))))
11427 && (r_type == R_PPC64_TLS
11428 || r_type == R_PPC64_TLSGD
11429 || r_type == R_PPC64_TLSLD))
11430 /* R_PPC64_TLS is OK against a symbol in the TOC. */
11433 (*_bfd_error_handler)
11434 (!IS_PPC64_TLS_RELOC (r_type)
11435 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
11436 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
11439 (long) rel->r_offset,
11440 ppc64_elf_howto_table[r_type]->name,
11444 /* Ensure reloc mapping code below stays sane. */
11445 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
11446 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
11447 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
11448 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
11449 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
11450 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
11451 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
11452 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
11453 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
11454 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
11462 case R_PPC64_TOC16:
11463 case R_PPC64_TOC16_LO:
11464 case R_PPC64_TOC16_DS:
11465 case R_PPC64_TOC16_LO_DS:
11467 /* Check for toc tls entries. */
11468 unsigned char *toc_tls;
11471 retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
11472 &local_syms, rel, input_bfd);
11478 tls_mask = *toc_tls;
11479 if (r_type == R_PPC64_TOC16_DS
11480 || r_type == R_PPC64_TOC16_LO_DS)
11483 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
11488 /* If we found a GD reloc pair, then we might be
11489 doing a GD->IE transition. */
11492 tls_gd = TLS_TPRELGD;
11493 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
11496 else if (retval == 3)
11498 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
11506 case R_PPC64_GOT_TPREL16_DS:
11507 case R_PPC64_GOT_TPREL16_LO_DS:
11509 && (tls_mask & TLS_TPREL) == 0)
11512 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
11514 insn |= 0x3c0d0000; /* addis 0,13,0 */
11515 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
11516 r_type = R_PPC64_TPREL16_HA;
11517 if (toc_symndx != 0)
11519 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
11520 rel->r_addend = toc_addend;
11521 /* We changed the symbol. Start over in order to
11522 get h, sym, sec etc. right. */
11527 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11533 && (tls_mask & TLS_TPREL) == 0)
11535 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
11536 insn = _bfd_elf_ppc_at_tls_transform (insn, 13);
11539 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
11540 /* Was PPC64_TLS which sits on insn boundary, now
11541 PPC64_TPREL16_LO which is at low-order half-word. */
11542 rel->r_offset += d_offset;
11543 r_type = R_PPC64_TPREL16_LO;
11544 if (toc_symndx != 0)
11546 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
11547 rel->r_addend = toc_addend;
11548 /* We changed the symbol. Start over in order to
11549 get h, sym, sec etc. right. */
11554 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11558 case R_PPC64_GOT_TLSGD16_HI:
11559 case R_PPC64_GOT_TLSGD16_HA:
11560 tls_gd = TLS_TPRELGD;
11561 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
11565 case R_PPC64_GOT_TLSLD16_HI:
11566 case R_PPC64_GOT_TLSLD16_HA:
11567 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
11570 if ((tls_mask & tls_gd) != 0)
11571 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
11572 + R_PPC64_GOT_TPREL16_DS);
11575 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
11576 rel->r_offset -= d_offset;
11577 r_type = R_PPC64_NONE;
11579 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11583 case R_PPC64_GOT_TLSGD16:
11584 case R_PPC64_GOT_TLSGD16_LO:
11585 tls_gd = TLS_TPRELGD;
11586 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
11590 case R_PPC64_GOT_TLSLD16:
11591 case R_PPC64_GOT_TLSLD16_LO:
11592 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
11594 unsigned int insn1, insn2, insn3;
11598 offset = (bfd_vma) -1;
11599 /* If not using the newer R_PPC64_TLSGD/LD to mark
11600 __tls_get_addr calls, we must trust that the call
11601 stays with its arg setup insns, ie. that the next
11602 reloc is the __tls_get_addr call associated with
11603 the current reloc. Edit both insns. */
11604 if (input_section->has_tls_get_addr_call
11605 && rel + 1 < relend
11606 && branch_reloc_hash_match (input_bfd, rel + 1,
11607 htab->tls_get_addr,
11608 htab->tls_get_addr_fd))
11609 offset = rel[1].r_offset;
11610 if ((tls_mask & tls_gd) != 0)
11613 insn1 = bfd_get_32 (output_bfd,
11614 contents + rel->r_offset - d_offset);
11615 insn1 &= (1 << 26) - (1 << 2);
11616 insn1 |= 58 << 26; /* ld */
11617 insn2 = 0x7c636a14; /* add 3,3,13 */
11618 if (offset != (bfd_vma) -1)
11619 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
11620 if ((tls_mask & TLS_EXPLICIT) == 0)
11621 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
11622 + R_PPC64_GOT_TPREL16_DS);
11624 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
11625 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11630 insn1 = 0x3c6d0000; /* addis 3,13,0 */
11631 insn2 = 0x38630000; /* addi 3,3,0 */
11634 /* Was an LD reloc. */
11636 sec = local_sections[toc_symndx];
11638 r_symndx < symtab_hdr->sh_info;
11640 if (local_sections[r_symndx] == sec)
11642 if (r_symndx >= symtab_hdr->sh_info)
11644 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
11646 rel->r_addend -= (local_syms[r_symndx].st_value
11647 + sec->output_offset
11648 + sec->output_section->vma);
11650 else if (toc_symndx != 0)
11652 r_symndx = toc_symndx;
11653 rel->r_addend = toc_addend;
11655 r_type = R_PPC64_TPREL16_HA;
11656 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11657 if (offset != (bfd_vma) -1)
11659 rel[1].r_info = ELF64_R_INFO (r_symndx,
11660 R_PPC64_TPREL16_LO);
11661 rel[1].r_offset = offset + d_offset;
11662 rel[1].r_addend = rel->r_addend;
11665 bfd_put_32 (output_bfd, insn1,
11666 contents + rel->r_offset - d_offset);
11667 if (offset != (bfd_vma) -1)
11669 insn3 = bfd_get_32 (output_bfd,
11670 contents + offset + 4);
11672 || insn3 == CROR_151515 || insn3 == CROR_313131)
11674 rel[1].r_offset += 4;
11675 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
11678 bfd_put_32 (output_bfd, insn2, contents + offset);
11680 if ((tls_mask & tls_gd) == 0
11681 && (tls_gd == 0 || toc_symndx != 0))
11683 /* We changed the symbol. Start over in order
11684 to get h, sym, sec etc. right. */
11691 case R_PPC64_TLSGD:
11692 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
11694 unsigned int insn2, insn3;
11695 bfd_vma offset = rel->r_offset;
11697 if ((tls_mask & TLS_TPRELGD) != 0)
11700 r_type = R_PPC64_NONE;
11701 insn2 = 0x7c636a14; /* add 3,3,13 */
11706 if (toc_symndx != 0)
11708 r_symndx = toc_symndx;
11709 rel->r_addend = toc_addend;
11711 r_type = R_PPC64_TPREL16_LO;
11712 rel->r_offset = offset + d_offset;
11713 insn2 = 0x38630000; /* addi 3,3,0 */
11715 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11716 /* Zap the reloc on the _tls_get_addr call too. */
11717 BFD_ASSERT (offset == rel[1].r_offset);
11718 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
11719 insn3 = bfd_get_32 (output_bfd,
11720 contents + offset + 4);
11722 || insn3 == CROR_151515 || insn3 == CROR_313131)
11724 rel->r_offset += 4;
11725 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
11728 bfd_put_32 (output_bfd, insn2, contents + offset);
11729 if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0)
11737 case R_PPC64_TLSLD:
11738 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
11740 unsigned int insn2, insn3;
11741 bfd_vma offset = rel->r_offset;
11744 sec = local_sections[toc_symndx];
11746 r_symndx < symtab_hdr->sh_info;
11748 if (local_sections[r_symndx] == sec)
11750 if (r_symndx >= symtab_hdr->sh_info)
11752 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
11754 rel->r_addend -= (local_syms[r_symndx].st_value
11755 + sec->output_offset
11756 + sec->output_section->vma);
11758 r_type = R_PPC64_TPREL16_LO;
11759 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11760 rel->r_offset = offset + d_offset;
11761 /* Zap the reloc on the _tls_get_addr call too. */
11762 BFD_ASSERT (offset == rel[1].r_offset);
11763 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
11764 insn2 = 0x38630000; /* addi 3,3,0 */
11765 insn3 = bfd_get_32 (output_bfd,
11766 contents + offset + 4);
11768 || insn3 == CROR_151515 || insn3 == CROR_313131)
11770 rel->r_offset += 4;
11771 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
11774 bfd_put_32 (output_bfd, insn2, contents + offset);
11780 case R_PPC64_DTPMOD64:
11781 if (rel + 1 < relend
11782 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
11783 && rel[1].r_offset == rel->r_offset + 8)
11785 if ((tls_mask & TLS_GD) == 0)
11787 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
11788 if ((tls_mask & TLS_TPRELGD) != 0)
11789 r_type = R_PPC64_TPREL64;
11792 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
11793 r_type = R_PPC64_NONE;
11795 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11800 if ((tls_mask & TLS_LD) == 0)
11802 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
11803 r_type = R_PPC64_NONE;
11804 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11809 case R_PPC64_TPREL64:
11810 if ((tls_mask & TLS_TPREL) == 0)
11812 r_type = R_PPC64_NONE;
11813 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11818 /* Handle other relocations that tweak non-addend part of insn. */
11820 max_br_offset = 1 << 25;
11821 addend = rel->r_addend;
11827 /* Branch taken prediction relocations. */
11828 case R_PPC64_ADDR14_BRTAKEN:
11829 case R_PPC64_REL14_BRTAKEN:
11830 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
11833 /* Branch not taken prediction relocations. */
11834 case R_PPC64_ADDR14_BRNTAKEN:
11835 case R_PPC64_REL14_BRNTAKEN:
11836 insn |= bfd_get_32 (output_bfd,
11837 contents + rel->r_offset) & ~(0x01 << 21);
11840 case R_PPC64_REL14:
11841 max_br_offset = 1 << 15;
11844 case R_PPC64_REL24:
11845 /* Calls to functions with a different TOC, such as calls to
11846 shared objects, need to alter the TOC pointer. This is
11847 done using a linkage stub. A REL24 branching to these
11848 linkage stubs needs to be followed by a nop, as the nop
11849 will be replaced with an instruction to restore the TOC
11855 && h->oh->is_func_descriptor)
11856 fdh = ppc_follow_link (h->oh);
11858 && fdh->elf.plt.plist != NULL)
11860 && sec->output_section != NULL
11861 && sec->id <= htab->top_id
11862 && (htab->stub_group[sec->id].toc_off
11863 != htab->stub_group[input_section->id].toc_off))
11865 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
11866 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
11867 rel, htab)) != NULL
11868 && (stub_entry->stub_type == ppc_stub_plt_call
11869 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
11870 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
11872 bfd_boolean can_plt_call = FALSE;
11874 if (rel->r_offset + 8 <= input_section->size)
11877 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
11879 || nop == CROR_151515 || nop == CROR_313131)
11882 && (h == htab->tls_get_addr_fd
11883 || h == htab->tls_get_addr)
11884 && !htab->no_tls_get_addr_opt)
11886 /* Special stub used, leave nop alone. */
11889 bfd_put_32 (input_bfd, LD_R2_40R1,
11890 contents + rel->r_offset + 4);
11891 can_plt_call = TRUE;
11897 if (stub_entry->stub_type == ppc_stub_plt_call)
11899 /* If this is a plain branch rather than a branch
11900 and link, don't require a nop. However, don't
11901 allow tail calls in a shared library as they
11902 will result in r2 being corrupted. */
11904 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
11905 if (info->executable && (br & 1) == 0)
11906 can_plt_call = TRUE;
11911 && strcmp (h->elf.root.root.string,
11912 ".__libc_start_main") == 0)
11914 /* Allow crt1 branch to go via a toc adjusting stub. */
11915 can_plt_call = TRUE;
11919 if (strcmp (input_section->output_section->name,
11921 || strcmp (input_section->output_section->name,
11923 (*_bfd_error_handler)
11924 (_("%B(%A+0x%lx): automatic multiple TOCs "
11925 "not supported using your crt files; "
11926 "recompile with -mminimal-toc or upgrade gcc"),
11929 (long) rel->r_offset);
11931 (*_bfd_error_handler)
11932 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
11933 "does not allow automatic multiple TOCs; "
11934 "recompile with -mminimal-toc or "
11935 "-fno-optimize-sibling-calls, "
11936 "or make `%s' extern"),
11939 (long) rel->r_offset,
11942 bfd_set_error (bfd_error_bad_value);
11948 && stub_entry->stub_type == ppc_stub_plt_call)
11949 unresolved_reloc = FALSE;
11952 if (stub_entry == NULL
11953 && get_opd_info (sec) != NULL)
11955 /* The branch destination is the value of the opd entry. */
11956 bfd_vma off = (relocation + addend
11957 - sec->output_section->vma
11958 - sec->output_offset);
11959 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
11960 if (dest != (bfd_vma) -1)
11967 /* If the branch is out of reach we ought to have a long
11969 from = (rel->r_offset
11970 + input_section->output_offset
11971 + input_section->output_section->vma);
11973 if (stub_entry == NULL
11974 && (relocation + addend - from + max_br_offset
11975 >= 2 * max_br_offset)
11976 && r_type != R_PPC64_ADDR14_BRTAKEN
11977 && r_type != R_PPC64_ADDR14_BRNTAKEN)
11978 stub_entry = ppc_get_stub_entry (input_section, sec, fdh, rel,
11981 if (stub_entry != NULL)
11983 /* Munge up the value and addend so that we call the stub
11984 rather than the procedure directly. */
11985 relocation = (stub_entry->stub_offset
11986 + stub_entry->stub_sec->output_offset
11987 + stub_entry->stub_sec->output_section->vma);
11995 /* Set 'a' bit. This is 0b00010 in BO field for branch
11996 on CR(BI) insns (BO == 001at or 011at), and 0b01000
11997 for branch on CTR insns (BO == 1a00t or 1a01t). */
11998 if ((insn & (0x14 << 21)) == (0x04 << 21))
11999 insn |= 0x02 << 21;
12000 else if ((insn & (0x14 << 21)) == (0x10 << 21))
12001 insn |= 0x08 << 21;
12007 /* Invert 'y' bit if not the default. */
12008 if ((bfd_signed_vma) (relocation + addend - from) < 0)
12009 insn ^= 0x01 << 21;
12012 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
12015 /* NOP out calls to undefined weak functions.
12016 We can thus call a weak function without first
12017 checking whether the function is defined. */
12019 && h->elf.root.type == bfd_link_hash_undefweak
12020 && h->elf.dynindx == -1
12021 && r_type == R_PPC64_REL24
12025 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
12031 /* Set `addend'. */
12036 (*_bfd_error_handler)
12037 (_("%B: unknown relocation type %d for symbol %s"),
12038 input_bfd, (int) r_type, sym_name);
12040 bfd_set_error (bfd_error_bad_value);
12046 case R_PPC64_TLSGD:
12047 case R_PPC64_TLSLD:
12048 case R_PPC64_GNU_VTINHERIT:
12049 case R_PPC64_GNU_VTENTRY:
12052 /* GOT16 relocations. Like an ADDR16 using the symbol's
12053 address in the GOT as relocation value instead of the
12054 symbol's value itself. Also, create a GOT entry for the
12055 symbol and put the symbol value there. */
12056 case R_PPC64_GOT_TLSGD16:
12057 case R_PPC64_GOT_TLSGD16_LO:
12058 case R_PPC64_GOT_TLSGD16_HI:
12059 case R_PPC64_GOT_TLSGD16_HA:
12060 tls_type = TLS_TLS | TLS_GD;
12063 case R_PPC64_GOT_TLSLD16:
12064 case R_PPC64_GOT_TLSLD16_LO:
12065 case R_PPC64_GOT_TLSLD16_HI:
12066 case R_PPC64_GOT_TLSLD16_HA:
12067 tls_type = TLS_TLS | TLS_LD;
12070 case R_PPC64_GOT_TPREL16_DS:
12071 case R_PPC64_GOT_TPREL16_LO_DS:
12072 case R_PPC64_GOT_TPREL16_HI:
12073 case R_PPC64_GOT_TPREL16_HA:
12074 tls_type = TLS_TLS | TLS_TPREL;
12077 case R_PPC64_GOT_DTPREL16_DS:
12078 case R_PPC64_GOT_DTPREL16_LO_DS:
12079 case R_PPC64_GOT_DTPREL16_HI:
12080 case R_PPC64_GOT_DTPREL16_HA:
12081 tls_type = TLS_TLS | TLS_DTPREL;
12084 case R_PPC64_GOT16:
12085 case R_PPC64_GOT16_LO:
12086 case R_PPC64_GOT16_HI:
12087 case R_PPC64_GOT16_HA:
12088 case R_PPC64_GOT16_DS:
12089 case R_PPC64_GOT16_LO_DS:
12092 /* Relocation is to the entry for this symbol in the global
12097 unsigned long indx = 0;
12098 struct got_entry *ent;
12100 if (tls_type == (TLS_TLS | TLS_LD)
12102 || !h->elf.def_dynamic))
12103 ent = ppc64_tlsld_got (input_bfd);
12109 bfd_boolean dyn = htab->elf.dynamic_sections_created;
12110 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
12113 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
12114 /* This is actually a static link, or it is a
12115 -Bsymbolic link and the symbol is defined
12116 locally, or the symbol was forced to be local
12117 because of a version file. */
12121 indx = h->elf.dynindx;
12122 unresolved_reloc = FALSE;
12124 ent = h->elf.got.glist;
12128 if (local_got_ents == NULL)
12130 ent = local_got_ents[r_symndx];
12133 for (; ent != NULL; ent = ent->next)
12134 if (ent->addend == orig_addend
12135 && ent->owner == input_bfd
12136 && ent->tls_type == tls_type)
12142 if (ent->is_indirect)
12143 ent = ent->got.ent;
12144 offp = &ent->got.offset;
12145 got = ppc64_elf_tdata (ent->owner)->got;
12149 /* The offset must always be a multiple of 8. We use the
12150 least significant bit to record whether we have already
12151 processed this entry. */
12153 if ((off & 1) != 0)
12157 /* Generate relocs for the dynamic linker, except in
12158 the case of TLSLD where we'll use one entry per
12166 ? h->elf.type == STT_GNU_IFUNC
12167 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
12168 if ((info->shared || indx != 0)
12170 || (tls_type == (TLS_TLS | TLS_LD)
12171 && !h->elf.def_dynamic)
12172 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
12173 || h->elf.root.type != bfd_link_hash_undefweak))
12174 relgot = ppc64_elf_tdata (ent->owner)->relgot;
12176 relgot = htab->reliplt;
12177 if (relgot != NULL)
12179 outrel.r_offset = (got->output_section->vma
12180 + got->output_offset
12182 outrel.r_addend = addend;
12183 if (tls_type & (TLS_LD | TLS_GD))
12185 outrel.r_addend = 0;
12186 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
12187 if (tls_type == (TLS_TLS | TLS_GD))
12189 loc = relgot->contents;
12190 loc += (relgot->reloc_count++
12191 * sizeof (Elf64_External_Rela));
12192 bfd_elf64_swap_reloca_out (output_bfd,
12194 outrel.r_offset += 8;
12195 outrel.r_addend = addend;
12197 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
12200 else if (tls_type == (TLS_TLS | TLS_DTPREL))
12201 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
12202 else if (tls_type == (TLS_TLS | TLS_TPREL))
12203 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
12204 else if (indx != 0)
12205 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
12209 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
12211 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
12213 /* Write the .got section contents for the sake
12215 loc = got->contents + off;
12216 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
12220 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
12222 outrel.r_addend += relocation;
12223 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
12224 outrel.r_addend -= htab->elf.tls_sec->vma;
12226 loc = relgot->contents;
12227 loc += (relgot->reloc_count++
12228 * sizeof (Elf64_External_Rela));
12229 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
12232 /* Init the .got section contents here if we're not
12233 emitting a reloc. */
12236 relocation += addend;
12237 if (tls_type == (TLS_TLS | TLS_LD))
12239 else if (tls_type != 0)
12241 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
12242 if (tls_type == (TLS_TLS | TLS_TPREL))
12243 relocation += DTP_OFFSET - TP_OFFSET;
12245 if (tls_type == (TLS_TLS | TLS_GD))
12247 bfd_put_64 (output_bfd, relocation,
12248 got->contents + off + 8);
12253 bfd_put_64 (output_bfd, relocation,
12254 got->contents + off);
12258 if (off >= (bfd_vma) -2)
12261 relocation = got->output_section->vma + got->output_offset + off;
12262 addend = -(TOCstart + htab->stub_group[input_section->id].toc_off);
12266 case R_PPC64_PLT16_HA:
12267 case R_PPC64_PLT16_HI:
12268 case R_PPC64_PLT16_LO:
12269 case R_PPC64_PLT32:
12270 case R_PPC64_PLT64:
12271 /* Relocation is to the entry for this symbol in the
12272 procedure linkage table. */
12274 /* Resolve a PLT reloc against a local symbol directly,
12275 without using the procedure linkage table. */
12279 /* It's possible that we didn't make a PLT entry for this
12280 symbol. This happens when statically linking PIC code,
12281 or when using -Bsymbolic. Go find a match if there is a
12283 if (htab->plt != NULL)
12285 struct plt_entry *ent;
12286 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
12287 if (ent->addend == orig_addend
12288 && ent->plt.offset != (bfd_vma) -1)
12290 relocation = (htab->plt->output_section->vma
12291 + htab->plt->output_offset
12292 + ent->plt.offset);
12293 unresolved_reloc = FALSE;
12299 /* Relocation value is TOC base. */
12300 relocation = TOCstart;
12302 relocation += htab->stub_group[input_section->id].toc_off;
12303 else if (unresolved_reloc)
12305 else if (sec != NULL && sec->id <= htab->top_id)
12306 relocation += htab->stub_group[sec->id].toc_off;
12308 unresolved_reloc = TRUE;
12311 /* TOC16 relocs. We want the offset relative to the TOC base,
12312 which is the address of the start of the TOC plus 0x8000.
12313 The TOC consists of sections .got, .toc, .tocbss, and .plt,
12315 case R_PPC64_TOC16:
12316 case R_PPC64_TOC16_LO:
12317 case R_PPC64_TOC16_HI:
12318 case R_PPC64_TOC16_DS:
12319 case R_PPC64_TOC16_LO_DS:
12320 case R_PPC64_TOC16_HA:
12321 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
12324 /* Relocate against the beginning of the section. */
12325 case R_PPC64_SECTOFF:
12326 case R_PPC64_SECTOFF_LO:
12327 case R_PPC64_SECTOFF_HI:
12328 case R_PPC64_SECTOFF_DS:
12329 case R_PPC64_SECTOFF_LO_DS:
12330 case R_PPC64_SECTOFF_HA:
12332 addend -= sec->output_section->vma;
12335 case R_PPC64_REL16:
12336 case R_PPC64_REL16_LO:
12337 case R_PPC64_REL16_HI:
12338 case R_PPC64_REL16_HA:
12341 case R_PPC64_REL14:
12342 case R_PPC64_REL14_BRNTAKEN:
12343 case R_PPC64_REL14_BRTAKEN:
12344 case R_PPC64_REL24:
12347 case R_PPC64_TPREL16:
12348 case R_PPC64_TPREL16_LO:
12349 case R_PPC64_TPREL16_HI:
12350 case R_PPC64_TPREL16_HA:
12351 case R_PPC64_TPREL16_DS:
12352 case R_PPC64_TPREL16_LO_DS:
12353 case R_PPC64_TPREL16_HIGHER:
12354 case R_PPC64_TPREL16_HIGHERA:
12355 case R_PPC64_TPREL16_HIGHEST:
12356 case R_PPC64_TPREL16_HIGHESTA:
12358 && h->elf.root.type == bfd_link_hash_undefweak
12359 && h->elf.dynindx == -1)
12361 /* Make this relocation against an undefined weak symbol
12362 resolve to zero. This is really just a tweak, since
12363 code using weak externs ought to check that they are
12364 defined before using them. */
12365 bfd_byte *p = contents + rel->r_offset - d_offset;
12367 insn = bfd_get_32 (output_bfd, p);
12368 insn = _bfd_elf_ppc_at_tprel_transform (insn, 13);
12370 bfd_put_32 (output_bfd, insn, p);
12373 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
12375 /* The TPREL16 relocs shouldn't really be used in shared
12376 libs as they will result in DT_TEXTREL being set, but
12377 support them anyway. */
12381 case R_PPC64_DTPREL16:
12382 case R_PPC64_DTPREL16_LO:
12383 case R_PPC64_DTPREL16_HI:
12384 case R_PPC64_DTPREL16_HA:
12385 case R_PPC64_DTPREL16_DS:
12386 case R_PPC64_DTPREL16_LO_DS:
12387 case R_PPC64_DTPREL16_HIGHER:
12388 case R_PPC64_DTPREL16_HIGHERA:
12389 case R_PPC64_DTPREL16_HIGHEST:
12390 case R_PPC64_DTPREL16_HIGHESTA:
12391 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
12394 case R_PPC64_DTPMOD64:
12399 case R_PPC64_TPREL64:
12400 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
12403 case R_PPC64_DTPREL64:
12404 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
12407 /* Relocations that may need to be propagated if this is a
12409 case R_PPC64_REL30:
12410 case R_PPC64_REL32:
12411 case R_PPC64_REL64:
12412 case R_PPC64_ADDR14:
12413 case R_PPC64_ADDR14_BRNTAKEN:
12414 case R_PPC64_ADDR14_BRTAKEN:
12415 case R_PPC64_ADDR16:
12416 case R_PPC64_ADDR16_DS:
12417 case R_PPC64_ADDR16_HA:
12418 case R_PPC64_ADDR16_HI:
12419 case R_PPC64_ADDR16_HIGHER:
12420 case R_PPC64_ADDR16_HIGHERA:
12421 case R_PPC64_ADDR16_HIGHEST:
12422 case R_PPC64_ADDR16_HIGHESTA:
12423 case R_PPC64_ADDR16_LO:
12424 case R_PPC64_ADDR16_LO_DS:
12425 case R_PPC64_ADDR24:
12426 case R_PPC64_ADDR32:
12427 case R_PPC64_ADDR64:
12428 case R_PPC64_UADDR16:
12429 case R_PPC64_UADDR32:
12430 case R_PPC64_UADDR64:
12432 if ((input_section->flags & SEC_ALLOC) == 0)
12435 if (NO_OPD_RELOCS && is_opd)
12440 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
12441 || h->elf.root.type != bfd_link_hash_undefweak)
12442 && (must_be_dyn_reloc (info, r_type)
12443 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
12444 || (ELIMINATE_COPY_RELOCS
12447 && h->elf.dynindx != -1
12448 && !h->elf.non_got_ref
12449 && !h->elf.def_regular)
12452 ? h->elf.type == STT_GNU_IFUNC
12453 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)))
12455 bfd_boolean skip, relocate;
12459 /* When generating a dynamic object, these relocations
12460 are copied into the output file to be resolved at run
12466 out_off = _bfd_elf_section_offset (output_bfd, info,
12467 input_section, rel->r_offset);
12468 if (out_off == (bfd_vma) -1)
12470 else if (out_off == (bfd_vma) -2)
12471 skip = TRUE, relocate = TRUE;
12472 out_off += (input_section->output_section->vma
12473 + input_section->output_offset);
12474 outrel.r_offset = out_off;
12475 outrel.r_addend = rel->r_addend;
12477 /* Optimize unaligned reloc use. */
12478 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
12479 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
12480 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
12481 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
12482 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
12483 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
12484 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
12485 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
12486 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
12489 memset (&outrel, 0, sizeof outrel);
12490 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
12492 && r_type != R_PPC64_TOC)
12493 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
12496 /* This symbol is local, or marked to become local,
12497 or this is an opd section reloc which must point
12498 at a local function. */
12499 outrel.r_addend += relocation;
12500 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
12502 if (is_opd && h != NULL)
12504 /* Lie about opd entries. This case occurs
12505 when building shared libraries and we
12506 reference a function in another shared
12507 lib. The same thing happens for a weak
12508 definition in an application that's
12509 overridden by a strong definition in a
12510 shared lib. (I believe this is a generic
12511 bug in binutils handling of weak syms.)
12512 In these cases we won't use the opd
12513 entry in this lib. */
12514 unresolved_reloc = FALSE;
12517 && r_type == R_PPC64_ADDR64
12519 ? h->elf.type == STT_GNU_IFUNC
12520 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
12521 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
12524 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
12526 /* We need to relocate .opd contents for ld.so.
12527 Prelink also wants simple and consistent rules
12528 for relocs. This make all RELATIVE relocs have
12529 *r_offset equal to r_addend. */
12538 ? h->elf.type == STT_GNU_IFUNC
12539 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
12541 (*_bfd_error_handler)
12542 (_("%B(%A+0x%lx): relocation %s for indirect "
12543 "function %s unsupported"),
12546 (long) rel->r_offset,
12547 ppc64_elf_howto_table[r_type]->name,
12551 else if (r_symndx == 0 || bfd_is_abs_section (sec))
12553 else if (sec == NULL || sec->owner == NULL)
12555 bfd_set_error (bfd_error_bad_value);
12562 osec = sec->output_section;
12563 indx = elf_section_data (osec)->dynindx;
12567 if ((osec->flags & SEC_READONLY) == 0
12568 && htab->elf.data_index_section != NULL)
12569 osec = htab->elf.data_index_section;
12571 osec = htab->elf.text_index_section;
12572 indx = elf_section_data (osec)->dynindx;
12574 BFD_ASSERT (indx != 0);
12576 /* We are turning this relocation into one
12577 against a section symbol, so subtract out
12578 the output section's address but not the
12579 offset of the input section in the output
12581 outrel.r_addend -= osec->vma;
12584 outrel.r_info = ELF64_R_INFO (indx, r_type);
12588 sreloc = elf_section_data (input_section)->sreloc;
12589 if (!htab->elf.dynamic_sections_created)
12590 sreloc = htab->reliplt;
12591 if (sreloc == NULL)
12594 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
12597 loc = sreloc->contents;
12598 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
12599 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
12601 /* If this reloc is against an external symbol, it will
12602 be computed at runtime, so there's no need to do
12603 anything now. However, for the sake of prelink ensure
12604 that the section contents are a known value. */
12607 unresolved_reloc = FALSE;
12608 /* The value chosen here is quite arbitrary as ld.so
12609 ignores section contents except for the special
12610 case of .opd where the contents might be accessed
12611 before relocation. Choose zero, as that won't
12612 cause reloc overflow. */
12615 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
12616 to improve backward compatibility with older
12618 if (r_type == R_PPC64_ADDR64)
12619 addend = outrel.r_addend;
12620 /* Adjust pc_relative relocs to have zero in *r_offset. */
12621 else if (ppc64_elf_howto_table[r_type]->pc_relative)
12622 addend = (input_section->output_section->vma
12623 + input_section->output_offset
12630 case R_PPC64_GLOB_DAT:
12631 case R_PPC64_JMP_SLOT:
12632 case R_PPC64_JMP_IREL:
12633 case R_PPC64_RELATIVE:
12634 /* We shouldn't ever see these dynamic relocs in relocatable
12636 /* Fall through. */
12638 case R_PPC64_PLTGOT16:
12639 case R_PPC64_PLTGOT16_DS:
12640 case R_PPC64_PLTGOT16_HA:
12641 case R_PPC64_PLTGOT16_HI:
12642 case R_PPC64_PLTGOT16_LO:
12643 case R_PPC64_PLTGOT16_LO_DS:
12644 case R_PPC64_PLTREL32:
12645 case R_PPC64_PLTREL64:
12646 /* These ones haven't been implemented yet. */
12648 (*_bfd_error_handler)
12649 (_("%B: relocation %s is not supported for symbol %s."),
12651 ppc64_elf_howto_table[r_type]->name, sym_name);
12653 bfd_set_error (bfd_error_invalid_operation);
12658 /* Do any further special processing. */
12664 case R_PPC64_ADDR16_HA:
12665 case R_PPC64_REL16_HA:
12666 case R_PPC64_ADDR16_HIGHERA:
12667 case R_PPC64_ADDR16_HIGHESTA:
12668 case R_PPC64_TOC16_HA:
12669 case R_PPC64_SECTOFF_HA:
12670 case R_PPC64_TPREL16_HA:
12671 case R_PPC64_DTPREL16_HA:
12672 case R_PPC64_TPREL16_HIGHER:
12673 case R_PPC64_TPREL16_HIGHERA:
12674 case R_PPC64_TPREL16_HIGHEST:
12675 case R_PPC64_TPREL16_HIGHESTA:
12676 case R_PPC64_DTPREL16_HIGHER:
12677 case R_PPC64_DTPREL16_HIGHERA:
12678 case R_PPC64_DTPREL16_HIGHEST:
12679 case R_PPC64_DTPREL16_HIGHESTA:
12680 /* It's just possible that this symbol is a weak symbol
12681 that's not actually defined anywhere. In that case,
12682 'sec' would be NULL, and we should leave the symbol
12683 alone (it will be set to zero elsewhere in the link). */
12688 case R_PPC64_GOT16_HA:
12689 case R_PPC64_PLTGOT16_HA:
12690 case R_PPC64_PLT16_HA:
12691 case R_PPC64_GOT_TLSGD16_HA:
12692 case R_PPC64_GOT_TLSLD16_HA:
12693 case R_PPC64_GOT_TPREL16_HA:
12694 case R_PPC64_GOT_DTPREL16_HA:
12695 /* Add 0x10000 if sign bit in 0:15 is set.
12696 Bits 0:15 are not used. */
12700 case R_PPC64_ADDR16_DS:
12701 case R_PPC64_ADDR16_LO_DS:
12702 case R_PPC64_GOT16_DS:
12703 case R_PPC64_GOT16_LO_DS:
12704 case R_PPC64_PLT16_LO_DS:
12705 case R_PPC64_SECTOFF_DS:
12706 case R_PPC64_SECTOFF_LO_DS:
12707 case R_PPC64_TOC16_DS:
12708 case R_PPC64_TOC16_LO_DS:
12709 case R_PPC64_PLTGOT16_DS:
12710 case R_PPC64_PLTGOT16_LO_DS:
12711 case R_PPC64_GOT_TPREL16_DS:
12712 case R_PPC64_GOT_TPREL16_LO_DS:
12713 case R_PPC64_GOT_DTPREL16_DS:
12714 case R_PPC64_GOT_DTPREL16_LO_DS:
12715 case R_PPC64_TPREL16_DS:
12716 case R_PPC64_TPREL16_LO_DS:
12717 case R_PPC64_DTPREL16_DS:
12718 case R_PPC64_DTPREL16_LO_DS:
12719 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
12721 /* If this reloc is against an lq insn, then the value must be
12722 a multiple of 16. This is somewhat of a hack, but the
12723 "correct" way to do this by defining _DQ forms of all the
12724 _DS relocs bloats all reloc switches in this file. It
12725 doesn't seem to make much sense to use any of these relocs
12726 in data, so testing the insn should be safe. */
12727 if ((insn & (0x3f << 26)) == (56u << 26))
12729 if (((relocation + addend) & mask) != 0)
12731 (*_bfd_error_handler)
12732 (_("%B: error: relocation %s not a multiple of %d"),
12734 ppc64_elf_howto_table[r_type]->name,
12736 bfd_set_error (bfd_error_bad_value);
12743 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
12744 because such sections are not SEC_ALLOC and thus ld.so will
12745 not process them. */
12746 if (unresolved_reloc
12747 && !((input_section->flags & SEC_DEBUGGING) != 0
12748 && h->elf.def_dynamic))
12750 (*_bfd_error_handler)
12751 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
12754 (long) rel->r_offset,
12755 ppc64_elf_howto_table[(int) r_type]->name,
12756 h->elf.root.root.string);
12760 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
12768 if (r != bfd_reloc_ok)
12770 if (sym_name == NULL)
12771 sym_name = "(null)";
12772 if (r == bfd_reloc_overflow)
12777 && h->elf.root.type == bfd_link_hash_undefweak
12778 && ppc64_elf_howto_table[r_type]->pc_relative)
12780 /* Assume this is a call protected by other code that
12781 detects the symbol is undefined. If this is the case,
12782 we can safely ignore the overflow. If not, the
12783 program is hosed anyway, and a little warning isn't
12789 if (!((*info->callbacks->reloc_overflow)
12790 (info, (h ? &h->elf.root : NULL), sym_name,
12791 ppc64_elf_howto_table[r_type]->name,
12792 orig_addend, input_bfd, input_section, rel->r_offset)))
12797 (*_bfd_error_handler)
12798 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
12801 (long) rel->r_offset,
12802 ppc64_elf_howto_table[r_type]->name,
12810 /* If we're emitting relocations, then shortly after this function
12811 returns, reloc offsets and addends for this section will be
12812 adjusted. Worse, reloc symbol indices will be for the output
12813 file rather than the input. Save a copy of the relocs for
12814 opd_entry_value. */
12815 if (is_opd && (info->emitrelocations || info->relocatable))
12818 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
12819 rel = bfd_alloc (input_bfd, amt);
12820 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
12821 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
12824 memcpy (rel, relocs, amt);
12829 /* Adjust the value of any local symbols in opd sections. */
12832 ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
12833 const char *name ATTRIBUTE_UNUSED,
12834 Elf_Internal_Sym *elfsym,
12835 asection *input_sec,
12836 struct elf_link_hash_entry *h)
12838 struct _opd_sec_data *opd;
12845 opd = get_opd_info (input_sec);
12846 if (opd == NULL || opd->adjust == NULL)
12849 value = elfsym->st_value - input_sec->output_offset;
12850 if (!info->relocatable)
12851 value -= input_sec->output_section->vma;
12853 adjust = opd->adjust[value / 8];
12857 elfsym->st_value += adjust;
12861 /* Finish up dynamic symbol handling. We set the contents of various
12862 dynamic sections here. */
12865 ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
12866 struct bfd_link_info *info,
12867 struct elf_link_hash_entry *h,
12868 Elf_Internal_Sym *sym)
12870 struct ppc_link_hash_table *htab;
12871 struct plt_entry *ent;
12872 Elf_Internal_Rela rela;
12875 htab = ppc_hash_table (info);
12879 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
12880 if (ent->plt.offset != (bfd_vma) -1)
12882 /* This symbol has an entry in the procedure linkage
12883 table. Set it up. */
12884 if (!htab->elf.dynamic_sections_created
12885 || h->dynindx == -1)
12887 BFD_ASSERT (h->type == STT_GNU_IFUNC
12889 && (h->root.type == bfd_link_hash_defined
12890 || h->root.type == bfd_link_hash_defweak));
12891 rela.r_offset = (htab->iplt->output_section->vma
12892 + htab->iplt->output_offset
12893 + ent->plt.offset);
12894 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
12895 rela.r_addend = (h->root.u.def.value
12896 + h->root.u.def.section->output_offset
12897 + h->root.u.def.section->output_section->vma
12899 loc = (htab->reliplt->contents
12900 + (htab->reliplt->reloc_count++
12901 * sizeof (Elf64_External_Rela)));
12905 rela.r_offset = (htab->plt->output_section->vma
12906 + htab->plt->output_offset
12907 + ent->plt.offset);
12908 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
12909 rela.r_addend = ent->addend;
12910 loc = (htab->relplt->contents
12911 + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE)
12912 / (PLT_ENTRY_SIZE / sizeof (Elf64_External_Rela))));
12914 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
12919 /* This symbol needs a copy reloc. Set it up. */
12921 if (h->dynindx == -1
12922 || (h->root.type != bfd_link_hash_defined
12923 && h->root.type != bfd_link_hash_defweak)
12924 || htab->relbss == NULL)
12927 rela.r_offset = (h->root.u.def.value
12928 + h->root.u.def.section->output_section->vma
12929 + h->root.u.def.section->output_offset);
12930 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
12932 loc = htab->relbss->contents;
12933 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
12934 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
12937 /* Mark some specially defined symbols as absolute. */
12938 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
12939 sym->st_shndx = SHN_ABS;
12944 /* Used to decide how to sort relocs in an optimal manner for the
12945 dynamic linker, before writing them out. */
12947 static enum elf_reloc_type_class
12948 ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
12950 enum elf_ppc64_reloc_type r_type;
12952 r_type = ELF64_R_TYPE (rela->r_info);
12955 case R_PPC64_RELATIVE:
12956 return reloc_class_relative;
12957 case R_PPC64_JMP_SLOT:
12958 return reloc_class_plt;
12960 return reloc_class_copy;
12962 return reloc_class_normal;
12966 /* Finish up the dynamic sections. */
12969 ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
12970 struct bfd_link_info *info)
12972 struct ppc_link_hash_table *htab;
12976 htab = ppc_hash_table (info);
12980 dynobj = htab->elf.dynobj;
12981 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
12983 if (htab->elf.dynamic_sections_created)
12985 Elf64_External_Dyn *dyncon, *dynconend;
12987 if (sdyn == NULL || htab->got == NULL)
12990 dyncon = (Elf64_External_Dyn *) sdyn->contents;
12991 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
12992 for (; dyncon < dynconend; dyncon++)
12994 Elf_Internal_Dyn dyn;
12997 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
13004 case DT_PPC64_GLINK:
13006 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
13007 /* We stupidly defined DT_PPC64_GLINK to be the start
13008 of glink rather than the first entry point, which is
13009 what ld.so needs, and now have a bigger stub to
13010 support automatic multiple TOCs. */
13011 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
13015 s = bfd_get_section_by_name (output_bfd, ".opd");
13018 dyn.d_un.d_ptr = s->vma;
13021 case DT_PPC64_OPDSZ:
13022 s = bfd_get_section_by_name (output_bfd, ".opd");
13025 dyn.d_un.d_val = s->size;
13030 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
13035 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
13039 dyn.d_un.d_val = htab->relplt->size;
13043 /* Don't count procedure linkage table relocs in the
13044 overall reloc count. */
13048 dyn.d_un.d_val -= s->size;
13052 /* We may not be using the standard ELF linker script.
13053 If .rela.plt is the first .rela section, we adjust
13054 DT_RELA to not include it. */
13058 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
13060 dyn.d_un.d_ptr += s->size;
13064 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
13068 if (htab->got != NULL && htab->got->size != 0)
13070 /* Fill in the first entry in the global offset table.
13071 We use it to hold the link-time TOCbase. */
13072 bfd_put_64 (output_bfd,
13073 elf_gp (output_bfd) + TOC_BASE_OFF,
13074 htab->got->contents);
13076 /* Set .got entry size. */
13077 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
13080 if (htab->plt != NULL && htab->plt->size != 0)
13082 /* Set .plt entry size. */
13083 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
13087 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
13088 brlt ourselves if emitrelocations. */
13089 if (htab->brlt != NULL
13090 && htab->brlt->reloc_count != 0
13091 && !_bfd_elf_link_output_relocs (output_bfd,
13093 &elf_section_data (htab->brlt)->rel_hdr,
13094 elf_section_data (htab->brlt)->relocs,
13098 if (htab->glink != NULL
13099 && htab->glink->reloc_count != 0
13100 && !_bfd_elf_link_output_relocs (output_bfd,
13102 &elf_section_data (htab->glink)->rel_hdr,
13103 elf_section_data (htab->glink)->relocs,
13107 /* We need to handle writing out multiple GOT sections ourselves,
13108 since we didn't add them to DYNOBJ. We know dynobj is the first
13110 while ((dynobj = dynobj->link_next) != NULL)
13114 if (!is_ppc64_elf (dynobj))
13117 s = ppc64_elf_tdata (dynobj)->got;
13120 && s->output_section != bfd_abs_section_ptr
13121 && !bfd_set_section_contents (output_bfd, s->output_section,
13122 s->contents, s->output_offset,
13125 s = ppc64_elf_tdata (dynobj)->relgot;
13128 && s->output_section != bfd_abs_section_ptr
13129 && !bfd_set_section_contents (output_bfd, s->output_section,
13130 s->contents, s->output_offset,
13138 #include "elf64-target.h"