1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright (C) 1999-2015 Free Software Foundation, Inc.
3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
5 Largely rewritten by Alan Modra.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
21 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
24 /* The 64-bit PowerPC ELF ABI may be found at
25 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
26 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
34 #include "elf/ppc64.h"
35 #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 *, bfd_boolean);
59 #define TARGET_LITTLE_SYM powerpc_elf64_le_vec
60 #define TARGET_LITTLE_NAME "elf64-powerpcle"
61 #define TARGET_BIG_SYM powerpc_elf64_vec
62 #define TARGET_BIG_NAME "elf64-powerpc"
63 #define ELF_ARCH bfd_arch_powerpc
64 #define ELF_TARGET_ID PPC64_ELF_DATA
65 #define ELF_MACHINE_CODE EM_PPC64
66 #define ELF_MAXPAGESIZE 0x10000
67 #define ELF_COMMONPAGESIZE 0x10000
68 #define elf_info_to_howto ppc64_elf_info_to_howto
70 #define elf_backend_want_got_sym 0
71 #define elf_backend_want_plt_sym 0
72 #define elf_backend_plt_alignment 3
73 #define elf_backend_plt_not_loaded 1
74 #define elf_backend_got_header_size 8
75 #define elf_backend_can_gc_sections 1
76 #define elf_backend_can_refcount 1
77 #define elf_backend_rela_normal 1
78 #define elf_backend_default_execstack 0
80 #define bfd_elf64_mkobject ppc64_elf_mkobject
81 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
82 #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
83 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
84 #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data
85 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
86 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
87 #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
88 #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms
90 #define elf_backend_object_p ppc64_elf_object_p
91 #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
92 #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
93 #define elf_backend_write_core_note ppc64_elf_write_core_note
94 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
95 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
96 #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
97 #define elf_backend_check_directives ppc64_elf_before_check_relocs
98 #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed
99 #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
100 #define elf_backend_check_relocs ppc64_elf_check_relocs
101 #define elf_backend_gc_keep ppc64_elf_gc_keep
102 #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
103 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
104 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
105 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
106 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
107 #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym
108 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
109 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
110 #define elf_backend_hash_symbol ppc64_elf_hash_symbol
111 #define elf_backend_init_index_section _bfd_elf_init_2_index_sections
112 #define elf_backend_action_discarded ppc64_elf_action_discarded
113 #define elf_backend_relocate_section ppc64_elf_relocate_section
114 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
115 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
116 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
117 #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
118 #define elf_backend_special_sections ppc64_elf_special_sections
119 #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute
121 /* The name of the dynamic interpreter. This is put in the .interp
123 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
125 /* The size in bytes of an entry in the procedure linkage table. */
126 #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8)
128 /* The initial size of the plt reserved for the dynamic linker. */
129 #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16)
131 /* Offsets to some stack save slots. */
133 #define STK_TOC(htab) (htab->opd_abi ? 40 : 24)
134 /* This one is dodgy. ELFv2 does not have a linker word, so use the
135 CR save slot. Used only by optimised __tls_get_addr call stub,
136 relying on __tls_get_addr_opt not saving CR.. */
137 #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8)
139 /* TOC base pointers offset from start of TOC. */
140 #define TOC_BASE_OFF 0x8000
141 /* TOC base alignment. */
142 #define TOC_BASE_ALIGN 256
144 /* Offset of tp and dtp pointers from start of TLS block. */
145 #define TP_OFFSET 0x7000
146 #define DTP_OFFSET 0x8000
148 /* .plt call stub instructions. The normal stub is like this, but
149 sometimes the .plt entry crosses a 64k boundary and we need to
150 insert an addi to adjust r11. */
151 #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */
152 #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */
153 #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */
154 #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */
155 #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */
156 #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */
157 #define BCTR 0x4e800420 /* bctr */
159 #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */
160 #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
161 #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
163 #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */
164 #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */
165 #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */
166 #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */
167 #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */
168 #define BNECTR 0x4ca20420 /* bnectr+ */
169 #define BNECTR_P4 0x4ce20420 /* bnectr+ */
171 #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */
172 #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
173 #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
175 #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */
177 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
178 #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
179 #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */
181 /* glink call stub instructions. We enter with the index in R0. */
182 #define GLINK_CALL_STUB_SIZE (16*4)
186 #define MFLR_R12 0x7d8802a6 /* mflr %12 */
187 #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
189 #define MFLR_R11 0x7d6802a6 /* mflr %11 */
190 /* ld %2,(0b-1b)(%11) */
191 #define MTLR_R12 0x7d8803a6 /* mtlr %12 */
192 #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */
198 #define MFLR_R0 0x7c0802a6 /* mflr %r0 */
199 #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
200 #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */
201 #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */
202 #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */
205 #define NOP 0x60000000
207 /* Some other nops. */
208 #define CROR_151515 0x4def7b82
209 #define CROR_313131 0x4ffffb82
211 /* .glink entries for the first 32k functions are two instructions. */
212 #define LI_R0_0 0x38000000 /* li %r0,0 */
213 #define B_DOT 0x48000000 /* b . */
215 /* After that, we need two instructions to load the index, followed by
217 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
218 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
220 /* Instructions used by the save and restore reg functions. */
221 #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
222 #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
223 #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
224 #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
225 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
226 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
227 #define LI_R12_0 0x39800000 /* li %r12,0 */
228 #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
229 #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
230 #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
231 #define BLR 0x4e800020 /* blr */
233 /* Since .opd is an array of descriptors and each entry will end up
234 with identical R_PPC64_RELATIVE relocs, there is really no need to
235 propagate .opd relocs; The dynamic linker should be taught to
236 relocate .opd without reloc entries. */
237 #ifndef NO_OPD_RELOCS
238 #define NO_OPD_RELOCS 0
242 abiversion (bfd *abfd)
244 return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI;
248 set_abiversion (bfd *abfd, int ver)
250 elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI;
251 elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI;
254 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
256 /* Relocation HOWTO's. */
257 static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
259 static reloc_howto_type ppc64_elf_howto_raw[] = {
260 /* This reloc does nothing. */
261 HOWTO (R_PPC64_NONE, /* type */
263 3, /* size (0 = byte, 1 = short, 2 = long) */
265 FALSE, /* pc_relative */
267 complain_overflow_dont, /* complain_on_overflow */
268 bfd_elf_generic_reloc, /* special_function */
269 "R_PPC64_NONE", /* name */
270 FALSE, /* partial_inplace */
273 FALSE), /* pcrel_offset */
275 /* A standard 32 bit relocation. */
276 HOWTO (R_PPC64_ADDR32, /* type */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
280 FALSE, /* pc_relative */
282 complain_overflow_bitfield, /* complain_on_overflow */
283 bfd_elf_generic_reloc, /* special_function */
284 "R_PPC64_ADDR32", /* name */
285 FALSE, /* partial_inplace */
287 0xffffffff, /* dst_mask */
288 FALSE), /* pcrel_offset */
290 /* An absolute 26 bit branch; the lower two bits must be zero.
291 FIXME: we don't check that, we just clear them. */
292 HOWTO (R_PPC64_ADDR24, /* type */
294 2, /* size (0 = byte, 1 = short, 2 = long) */
296 FALSE, /* pc_relative */
298 complain_overflow_bitfield, /* complain_on_overflow */
299 bfd_elf_generic_reloc, /* special_function */
300 "R_PPC64_ADDR24", /* name */
301 FALSE, /* partial_inplace */
303 0x03fffffc, /* dst_mask */
304 FALSE), /* pcrel_offset */
306 /* A standard 16 bit relocation. */
307 HOWTO (R_PPC64_ADDR16, /* type */
309 1, /* size (0 = byte, 1 = short, 2 = long) */
311 FALSE, /* pc_relative */
313 complain_overflow_bitfield, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_PPC64_ADDR16", /* name */
316 FALSE, /* partial_inplace */
318 0xffff, /* dst_mask */
319 FALSE), /* pcrel_offset */
321 /* A 16 bit relocation without overflow. */
322 HOWTO (R_PPC64_ADDR16_LO, /* type */
324 1, /* size (0 = byte, 1 = short, 2 = long) */
326 FALSE, /* pc_relative */
328 complain_overflow_dont,/* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_PPC64_ADDR16_LO", /* name */
331 FALSE, /* partial_inplace */
333 0xffff, /* dst_mask */
334 FALSE), /* pcrel_offset */
336 /* Bits 16-31 of an address. */
337 HOWTO (R_PPC64_ADDR16_HI, /* type */
339 1, /* size (0 = byte, 1 = short, 2 = long) */
341 FALSE, /* pc_relative */
343 complain_overflow_signed, /* complain_on_overflow */
344 bfd_elf_generic_reloc, /* special_function */
345 "R_PPC64_ADDR16_HI", /* name */
346 FALSE, /* partial_inplace */
348 0xffff, /* dst_mask */
349 FALSE), /* pcrel_offset */
351 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
352 bits, treated as a signed number, is negative. */
353 HOWTO (R_PPC64_ADDR16_HA, /* type */
355 1, /* size (0 = byte, 1 = short, 2 = long) */
357 FALSE, /* pc_relative */
359 complain_overflow_signed, /* complain_on_overflow */
360 ppc64_elf_ha_reloc, /* special_function */
361 "R_PPC64_ADDR16_HA", /* name */
362 FALSE, /* partial_inplace */
364 0xffff, /* dst_mask */
365 FALSE), /* pcrel_offset */
367 /* An absolute 16 bit branch; the lower two bits must be zero.
368 FIXME: we don't check that, we just clear them. */
369 HOWTO (R_PPC64_ADDR14, /* type */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
373 FALSE, /* pc_relative */
375 complain_overflow_signed, /* complain_on_overflow */
376 ppc64_elf_branch_reloc, /* special_function */
377 "R_PPC64_ADDR14", /* name */
378 FALSE, /* partial_inplace */
380 0x0000fffc, /* dst_mask */
381 FALSE), /* pcrel_offset */
383 /* An absolute 16 bit branch, for which bit 10 should be set to
384 indicate that the branch is expected to be taken. The lower two
385 bits must be zero. */
386 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
390 FALSE, /* pc_relative */
392 complain_overflow_signed, /* complain_on_overflow */
393 ppc64_elf_brtaken_reloc, /* special_function */
394 "R_PPC64_ADDR14_BRTAKEN",/* name */
395 FALSE, /* partial_inplace */
397 0x0000fffc, /* dst_mask */
398 FALSE), /* pcrel_offset */
400 /* An absolute 16 bit branch, for which bit 10 should be set to
401 indicate that the branch is not expected to be taken. The lower
402 two bits must be zero. */
403 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
405 2, /* size (0 = byte, 1 = short, 2 = long) */
407 FALSE, /* pc_relative */
409 complain_overflow_signed, /* complain_on_overflow */
410 ppc64_elf_brtaken_reloc, /* special_function */
411 "R_PPC64_ADDR14_BRNTAKEN",/* name */
412 FALSE, /* partial_inplace */
414 0x0000fffc, /* dst_mask */
415 FALSE), /* pcrel_offset */
417 /* A relative 26 bit branch; the lower two bits must be zero. */
418 HOWTO (R_PPC64_REL24, /* type */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
422 TRUE, /* pc_relative */
424 complain_overflow_signed, /* complain_on_overflow */
425 ppc64_elf_branch_reloc, /* special_function */
426 "R_PPC64_REL24", /* name */
427 FALSE, /* partial_inplace */
429 0x03fffffc, /* dst_mask */
430 TRUE), /* pcrel_offset */
432 /* A relative 16 bit branch; the lower two bits must be zero. */
433 HOWTO (R_PPC64_REL14, /* type */
435 2, /* size (0 = byte, 1 = short, 2 = long) */
437 TRUE, /* pc_relative */
439 complain_overflow_signed, /* complain_on_overflow */
440 ppc64_elf_branch_reloc, /* special_function */
441 "R_PPC64_REL14", /* name */
442 FALSE, /* partial_inplace */
444 0x0000fffc, /* dst_mask */
445 TRUE), /* pcrel_offset */
447 /* A relative 16 bit branch. Bit 10 should be set to indicate that
448 the branch is expected to be taken. The lower two bits must be
450 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
454 TRUE, /* pc_relative */
456 complain_overflow_signed, /* complain_on_overflow */
457 ppc64_elf_brtaken_reloc, /* special_function */
458 "R_PPC64_REL14_BRTAKEN", /* name */
459 FALSE, /* partial_inplace */
461 0x0000fffc, /* dst_mask */
462 TRUE), /* pcrel_offset */
464 /* A relative 16 bit branch. Bit 10 should be set to indicate that
465 the branch is not expected to be taken. The lower two bits must
467 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
469 2, /* size (0 = byte, 1 = short, 2 = long) */
471 TRUE, /* pc_relative */
473 complain_overflow_signed, /* complain_on_overflow */
474 ppc64_elf_brtaken_reloc, /* special_function */
475 "R_PPC64_REL14_BRNTAKEN",/* name */
476 FALSE, /* partial_inplace */
478 0x0000fffc, /* dst_mask */
479 TRUE), /* pcrel_offset */
481 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
483 HOWTO (R_PPC64_GOT16, /* type */
485 1, /* size (0 = byte, 1 = short, 2 = long) */
487 FALSE, /* pc_relative */
489 complain_overflow_signed, /* complain_on_overflow */
490 ppc64_elf_unhandled_reloc, /* special_function */
491 "R_PPC64_GOT16", /* name */
492 FALSE, /* partial_inplace */
494 0xffff, /* dst_mask */
495 FALSE), /* pcrel_offset */
497 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
499 HOWTO (R_PPC64_GOT16_LO, /* type */
501 1, /* size (0 = byte, 1 = short, 2 = long) */
503 FALSE, /* pc_relative */
505 complain_overflow_dont, /* complain_on_overflow */
506 ppc64_elf_unhandled_reloc, /* special_function */
507 "R_PPC64_GOT16_LO", /* name */
508 FALSE, /* partial_inplace */
510 0xffff, /* dst_mask */
511 FALSE), /* pcrel_offset */
513 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
515 HOWTO (R_PPC64_GOT16_HI, /* type */
517 1, /* size (0 = byte, 1 = short, 2 = long) */
519 FALSE, /* pc_relative */
521 complain_overflow_signed,/* complain_on_overflow */
522 ppc64_elf_unhandled_reloc, /* special_function */
523 "R_PPC64_GOT16_HI", /* name */
524 FALSE, /* partial_inplace */
526 0xffff, /* dst_mask */
527 FALSE), /* pcrel_offset */
529 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
531 HOWTO (R_PPC64_GOT16_HA, /* type */
533 1, /* size (0 = byte, 1 = short, 2 = long) */
535 FALSE, /* pc_relative */
537 complain_overflow_signed,/* complain_on_overflow */
538 ppc64_elf_unhandled_reloc, /* special_function */
539 "R_PPC64_GOT16_HA", /* name */
540 FALSE, /* partial_inplace */
542 0xffff, /* dst_mask */
543 FALSE), /* pcrel_offset */
545 /* This is used only by the dynamic linker. The symbol should exist
546 both in the object being run and in some shared library. The
547 dynamic linker copies the data addressed by the symbol from the
548 shared library into the object, because the object being
549 run has to have the data at some particular address. */
550 HOWTO (R_PPC64_COPY, /* type */
552 0, /* this one is variable size */
554 FALSE, /* pc_relative */
556 complain_overflow_dont, /* complain_on_overflow */
557 ppc64_elf_unhandled_reloc, /* special_function */
558 "R_PPC64_COPY", /* name */
559 FALSE, /* partial_inplace */
562 FALSE), /* pcrel_offset */
564 /* Like R_PPC64_ADDR64, but used when setting global offset table
566 HOWTO (R_PPC64_GLOB_DAT, /* type */
568 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
570 FALSE, /* pc_relative */
572 complain_overflow_dont, /* complain_on_overflow */
573 ppc64_elf_unhandled_reloc, /* special_function */
574 "R_PPC64_GLOB_DAT", /* name */
575 FALSE, /* partial_inplace */
577 ONES (64), /* dst_mask */
578 FALSE), /* pcrel_offset */
580 /* Created by the link editor. Marks a procedure linkage table
581 entry for a symbol. */
582 HOWTO (R_PPC64_JMP_SLOT, /* type */
584 0, /* size (0 = byte, 1 = short, 2 = long) */
586 FALSE, /* pc_relative */
588 complain_overflow_dont, /* complain_on_overflow */
589 ppc64_elf_unhandled_reloc, /* special_function */
590 "R_PPC64_JMP_SLOT", /* name */
591 FALSE, /* partial_inplace */
594 FALSE), /* pcrel_offset */
596 /* Used only by the dynamic linker. When the object is run, this
597 doubleword64 is set to the load address of the object, plus the
599 HOWTO (R_PPC64_RELATIVE, /* type */
601 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
603 FALSE, /* pc_relative */
605 complain_overflow_dont, /* complain_on_overflow */
606 bfd_elf_generic_reloc, /* special_function */
607 "R_PPC64_RELATIVE", /* name */
608 FALSE, /* partial_inplace */
610 ONES (64), /* dst_mask */
611 FALSE), /* pcrel_offset */
613 /* Like R_PPC64_ADDR32, but may be unaligned. */
614 HOWTO (R_PPC64_UADDR32, /* type */
616 2, /* size (0 = byte, 1 = short, 2 = long) */
618 FALSE, /* pc_relative */
620 complain_overflow_bitfield, /* complain_on_overflow */
621 bfd_elf_generic_reloc, /* special_function */
622 "R_PPC64_UADDR32", /* name */
623 FALSE, /* partial_inplace */
625 0xffffffff, /* dst_mask */
626 FALSE), /* pcrel_offset */
628 /* Like R_PPC64_ADDR16, but may be unaligned. */
629 HOWTO (R_PPC64_UADDR16, /* type */
631 1, /* size (0 = byte, 1 = short, 2 = long) */
633 FALSE, /* pc_relative */
635 complain_overflow_bitfield, /* complain_on_overflow */
636 bfd_elf_generic_reloc, /* special_function */
637 "R_PPC64_UADDR16", /* name */
638 FALSE, /* partial_inplace */
640 0xffff, /* dst_mask */
641 FALSE), /* pcrel_offset */
643 /* 32-bit PC relative. */
644 HOWTO (R_PPC64_REL32, /* type */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
648 TRUE, /* pc_relative */
650 complain_overflow_signed, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_PPC64_REL32", /* name */
653 FALSE, /* partial_inplace */
655 0xffffffff, /* dst_mask */
656 TRUE), /* pcrel_offset */
658 /* 32-bit relocation to the symbol's procedure linkage table. */
659 HOWTO (R_PPC64_PLT32, /* type */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
663 FALSE, /* pc_relative */
665 complain_overflow_bitfield, /* complain_on_overflow */
666 ppc64_elf_unhandled_reloc, /* special_function */
667 "R_PPC64_PLT32", /* name */
668 FALSE, /* partial_inplace */
670 0xffffffff, /* dst_mask */
671 FALSE), /* pcrel_offset */
673 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
674 FIXME: R_PPC64_PLTREL32 not supported. */
675 HOWTO (R_PPC64_PLTREL32, /* type */
677 2, /* size (0 = byte, 1 = short, 2 = long) */
679 TRUE, /* pc_relative */
681 complain_overflow_signed, /* complain_on_overflow */
682 bfd_elf_generic_reloc, /* special_function */
683 "R_PPC64_PLTREL32", /* name */
684 FALSE, /* partial_inplace */
686 0xffffffff, /* dst_mask */
687 TRUE), /* pcrel_offset */
689 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
691 HOWTO (R_PPC64_PLT16_LO, /* type */
693 1, /* size (0 = byte, 1 = short, 2 = long) */
695 FALSE, /* pc_relative */
697 complain_overflow_dont, /* complain_on_overflow */
698 ppc64_elf_unhandled_reloc, /* special_function */
699 "R_PPC64_PLT16_LO", /* name */
700 FALSE, /* partial_inplace */
702 0xffff, /* dst_mask */
703 FALSE), /* pcrel_offset */
705 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
707 HOWTO (R_PPC64_PLT16_HI, /* type */
709 1, /* size (0 = byte, 1 = short, 2 = long) */
711 FALSE, /* pc_relative */
713 complain_overflow_signed, /* complain_on_overflow */
714 ppc64_elf_unhandled_reloc, /* special_function */
715 "R_PPC64_PLT16_HI", /* name */
716 FALSE, /* partial_inplace */
718 0xffff, /* dst_mask */
719 FALSE), /* pcrel_offset */
721 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
723 HOWTO (R_PPC64_PLT16_HA, /* type */
725 1, /* size (0 = byte, 1 = short, 2 = long) */
727 FALSE, /* pc_relative */
729 complain_overflow_signed, /* complain_on_overflow */
730 ppc64_elf_unhandled_reloc, /* special_function */
731 "R_PPC64_PLT16_HA", /* name */
732 FALSE, /* partial_inplace */
734 0xffff, /* dst_mask */
735 FALSE), /* pcrel_offset */
737 /* 16-bit section relative relocation. */
738 HOWTO (R_PPC64_SECTOFF, /* type */
740 1, /* size (0 = byte, 1 = short, 2 = long) */
742 FALSE, /* pc_relative */
744 complain_overflow_signed, /* complain_on_overflow */
745 ppc64_elf_sectoff_reloc, /* special_function */
746 "R_PPC64_SECTOFF", /* name */
747 FALSE, /* partial_inplace */
749 0xffff, /* dst_mask */
750 FALSE), /* pcrel_offset */
752 /* Like R_PPC64_SECTOFF, but no overflow warning. */
753 HOWTO (R_PPC64_SECTOFF_LO, /* type */
755 1, /* size (0 = byte, 1 = short, 2 = long) */
757 FALSE, /* pc_relative */
759 complain_overflow_dont, /* complain_on_overflow */
760 ppc64_elf_sectoff_reloc, /* special_function */
761 "R_PPC64_SECTOFF_LO", /* name */
762 FALSE, /* partial_inplace */
764 0xffff, /* dst_mask */
765 FALSE), /* pcrel_offset */
767 /* 16-bit upper half section relative relocation. */
768 HOWTO (R_PPC64_SECTOFF_HI, /* type */
770 1, /* size (0 = byte, 1 = short, 2 = long) */
772 FALSE, /* pc_relative */
774 complain_overflow_signed, /* complain_on_overflow */
775 ppc64_elf_sectoff_reloc, /* special_function */
776 "R_PPC64_SECTOFF_HI", /* name */
777 FALSE, /* partial_inplace */
779 0xffff, /* dst_mask */
780 FALSE), /* pcrel_offset */
782 /* 16-bit upper half adjusted section relative relocation. */
783 HOWTO (R_PPC64_SECTOFF_HA, /* type */
785 1, /* size (0 = byte, 1 = short, 2 = long) */
787 FALSE, /* pc_relative */
789 complain_overflow_signed, /* complain_on_overflow */
790 ppc64_elf_sectoff_ha_reloc, /* special_function */
791 "R_PPC64_SECTOFF_HA", /* name */
792 FALSE, /* partial_inplace */
794 0xffff, /* dst_mask */
795 FALSE), /* pcrel_offset */
797 /* Like R_PPC64_REL24 without touching the two least significant bits. */
798 HOWTO (R_PPC64_REL30, /* type */
800 2, /* size (0 = byte, 1 = short, 2 = long) */
802 TRUE, /* pc_relative */
804 complain_overflow_dont, /* complain_on_overflow */
805 bfd_elf_generic_reloc, /* special_function */
806 "R_PPC64_REL30", /* name */
807 FALSE, /* partial_inplace */
809 0xfffffffc, /* dst_mask */
810 TRUE), /* pcrel_offset */
812 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
814 /* A standard 64-bit relocation. */
815 HOWTO (R_PPC64_ADDR64, /* type */
817 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
819 FALSE, /* pc_relative */
821 complain_overflow_dont, /* complain_on_overflow */
822 bfd_elf_generic_reloc, /* special_function */
823 "R_PPC64_ADDR64", /* name */
824 FALSE, /* partial_inplace */
826 ONES (64), /* dst_mask */
827 FALSE), /* pcrel_offset */
829 /* The bits 32-47 of an address. */
830 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
832 1, /* size (0 = byte, 1 = short, 2 = long) */
834 FALSE, /* pc_relative */
836 complain_overflow_dont, /* complain_on_overflow */
837 bfd_elf_generic_reloc, /* special_function */
838 "R_PPC64_ADDR16_HIGHER", /* name */
839 FALSE, /* partial_inplace */
841 0xffff, /* dst_mask */
842 FALSE), /* pcrel_offset */
844 /* The bits 32-47 of an address, plus 1 if the contents of the low
845 16 bits, treated as a signed number, is negative. */
846 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
848 1, /* size (0 = byte, 1 = short, 2 = long) */
850 FALSE, /* pc_relative */
852 complain_overflow_dont, /* complain_on_overflow */
853 ppc64_elf_ha_reloc, /* special_function */
854 "R_PPC64_ADDR16_HIGHERA", /* name */
855 FALSE, /* partial_inplace */
857 0xffff, /* dst_mask */
858 FALSE), /* pcrel_offset */
860 /* The bits 48-63 of an address. */
861 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
863 1, /* size (0 = byte, 1 = short, 2 = long) */
865 FALSE, /* pc_relative */
867 complain_overflow_dont, /* complain_on_overflow */
868 bfd_elf_generic_reloc, /* special_function */
869 "R_PPC64_ADDR16_HIGHEST", /* name */
870 FALSE, /* partial_inplace */
872 0xffff, /* dst_mask */
873 FALSE), /* pcrel_offset */
875 /* The bits 48-63 of an address, plus 1 if the contents of the low
876 16 bits, treated as a signed number, is negative. */
877 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
879 1, /* size (0 = byte, 1 = short, 2 = long) */
881 FALSE, /* pc_relative */
883 complain_overflow_dont, /* complain_on_overflow */
884 ppc64_elf_ha_reloc, /* special_function */
885 "R_PPC64_ADDR16_HIGHESTA", /* name */
886 FALSE, /* partial_inplace */
888 0xffff, /* dst_mask */
889 FALSE), /* pcrel_offset */
891 /* Like ADDR64, but may be unaligned. */
892 HOWTO (R_PPC64_UADDR64, /* type */
894 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
896 FALSE, /* pc_relative */
898 complain_overflow_dont, /* complain_on_overflow */
899 bfd_elf_generic_reloc, /* special_function */
900 "R_PPC64_UADDR64", /* name */
901 FALSE, /* partial_inplace */
903 ONES (64), /* dst_mask */
904 FALSE), /* pcrel_offset */
906 /* 64-bit relative relocation. */
907 HOWTO (R_PPC64_REL64, /* type */
909 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
911 TRUE, /* pc_relative */
913 complain_overflow_dont, /* complain_on_overflow */
914 bfd_elf_generic_reloc, /* special_function */
915 "R_PPC64_REL64", /* name */
916 FALSE, /* partial_inplace */
918 ONES (64), /* dst_mask */
919 TRUE), /* pcrel_offset */
921 /* 64-bit relocation to the symbol's procedure linkage table. */
922 HOWTO (R_PPC64_PLT64, /* type */
924 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
926 FALSE, /* pc_relative */
928 complain_overflow_dont, /* complain_on_overflow */
929 ppc64_elf_unhandled_reloc, /* special_function */
930 "R_PPC64_PLT64", /* name */
931 FALSE, /* partial_inplace */
933 ONES (64), /* dst_mask */
934 FALSE), /* pcrel_offset */
936 /* 64-bit PC relative relocation to the symbol's procedure linkage
938 /* FIXME: R_PPC64_PLTREL64 not supported. */
939 HOWTO (R_PPC64_PLTREL64, /* type */
941 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
943 TRUE, /* pc_relative */
945 complain_overflow_dont, /* complain_on_overflow */
946 ppc64_elf_unhandled_reloc, /* special_function */
947 "R_PPC64_PLTREL64", /* name */
948 FALSE, /* partial_inplace */
950 ONES (64), /* dst_mask */
951 TRUE), /* pcrel_offset */
953 /* 16 bit TOC-relative relocation. */
955 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
956 HOWTO (R_PPC64_TOC16, /* type */
958 1, /* size (0 = byte, 1 = short, 2 = long) */
960 FALSE, /* pc_relative */
962 complain_overflow_signed, /* complain_on_overflow */
963 ppc64_elf_toc_reloc, /* special_function */
964 "R_PPC64_TOC16", /* name */
965 FALSE, /* partial_inplace */
967 0xffff, /* dst_mask */
968 FALSE), /* pcrel_offset */
970 /* 16 bit TOC-relative relocation without overflow. */
972 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
973 HOWTO (R_PPC64_TOC16_LO, /* type */
975 1, /* size (0 = byte, 1 = short, 2 = long) */
977 FALSE, /* pc_relative */
979 complain_overflow_dont, /* complain_on_overflow */
980 ppc64_elf_toc_reloc, /* special_function */
981 "R_PPC64_TOC16_LO", /* name */
982 FALSE, /* partial_inplace */
984 0xffff, /* dst_mask */
985 FALSE), /* pcrel_offset */
987 /* 16 bit TOC-relative relocation, high 16 bits. */
989 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
990 HOWTO (R_PPC64_TOC16_HI, /* type */
992 1, /* size (0 = byte, 1 = short, 2 = long) */
994 FALSE, /* pc_relative */
996 complain_overflow_signed, /* complain_on_overflow */
997 ppc64_elf_toc_reloc, /* special_function */
998 "R_PPC64_TOC16_HI", /* name */
999 FALSE, /* partial_inplace */
1001 0xffff, /* dst_mask */
1002 FALSE), /* pcrel_offset */
1004 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
1005 contents of the low 16 bits, treated as a signed number, is
1008 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
1009 HOWTO (R_PPC64_TOC16_HA, /* type */
1010 16, /* rightshift */
1011 1, /* size (0 = byte, 1 = short, 2 = long) */
1013 FALSE, /* pc_relative */
1015 complain_overflow_signed, /* complain_on_overflow */
1016 ppc64_elf_toc_ha_reloc, /* special_function */
1017 "R_PPC64_TOC16_HA", /* name */
1018 FALSE, /* partial_inplace */
1020 0xffff, /* dst_mask */
1021 FALSE), /* pcrel_offset */
1023 /* 64-bit relocation; insert value of TOC base (.TOC.). */
1025 /* R_PPC64_TOC 51 doubleword64 .TOC. */
1026 HOWTO (R_PPC64_TOC, /* type */
1028 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1030 FALSE, /* pc_relative */
1032 complain_overflow_dont, /* complain_on_overflow */
1033 ppc64_elf_toc64_reloc, /* special_function */
1034 "R_PPC64_TOC", /* name */
1035 FALSE, /* partial_inplace */
1037 ONES (64), /* dst_mask */
1038 FALSE), /* pcrel_offset */
1040 /* Like R_PPC64_GOT16, but also informs the link editor that the
1041 value to relocate may (!) refer to a PLT entry which the link
1042 editor (a) may replace with the symbol value. If the link editor
1043 is unable to fully resolve the symbol, it may (b) create a PLT
1044 entry and store the address to the new PLT entry in the GOT.
1045 This permits lazy resolution of function symbols at run time.
1046 The link editor may also skip all of this and just (c) emit a
1047 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1048 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1049 HOWTO (R_PPC64_PLTGOT16, /* type */
1051 1, /* size (0 = byte, 1 = short, 2 = long) */
1053 FALSE, /* pc_relative */
1055 complain_overflow_signed, /* complain_on_overflow */
1056 ppc64_elf_unhandled_reloc, /* special_function */
1057 "R_PPC64_PLTGOT16", /* name */
1058 FALSE, /* partial_inplace */
1060 0xffff, /* dst_mask */
1061 FALSE), /* pcrel_offset */
1063 /* Like R_PPC64_PLTGOT16, but without overflow. */
1064 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1065 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1067 1, /* size (0 = byte, 1 = short, 2 = long) */
1069 FALSE, /* pc_relative */
1071 complain_overflow_dont, /* complain_on_overflow */
1072 ppc64_elf_unhandled_reloc, /* special_function */
1073 "R_PPC64_PLTGOT16_LO", /* name */
1074 FALSE, /* partial_inplace */
1076 0xffff, /* dst_mask */
1077 FALSE), /* pcrel_offset */
1079 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1080 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1081 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1082 16, /* rightshift */
1083 1, /* size (0 = byte, 1 = short, 2 = long) */
1085 FALSE, /* pc_relative */
1087 complain_overflow_signed, /* complain_on_overflow */
1088 ppc64_elf_unhandled_reloc, /* special_function */
1089 "R_PPC64_PLTGOT16_HI", /* name */
1090 FALSE, /* partial_inplace */
1092 0xffff, /* dst_mask */
1093 FALSE), /* pcrel_offset */
1095 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1096 1 if the contents of the low 16 bits, treated as a signed number,
1098 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1099 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1100 16, /* rightshift */
1101 1, /* size (0 = byte, 1 = short, 2 = long) */
1103 FALSE, /* pc_relative */
1105 complain_overflow_signed, /* complain_on_overflow */
1106 ppc64_elf_unhandled_reloc, /* special_function */
1107 "R_PPC64_PLTGOT16_HA", /* name */
1108 FALSE, /* partial_inplace */
1110 0xffff, /* dst_mask */
1111 FALSE), /* pcrel_offset */
1113 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1114 HOWTO (R_PPC64_ADDR16_DS, /* type */
1116 1, /* size (0 = byte, 1 = short, 2 = long) */
1118 FALSE, /* pc_relative */
1120 complain_overflow_signed, /* complain_on_overflow */
1121 bfd_elf_generic_reloc, /* special_function */
1122 "R_PPC64_ADDR16_DS", /* name */
1123 FALSE, /* partial_inplace */
1125 0xfffc, /* dst_mask */
1126 FALSE), /* pcrel_offset */
1128 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1129 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1131 1, /* size (0 = byte, 1 = short, 2 = long) */
1133 FALSE, /* pc_relative */
1135 complain_overflow_dont,/* complain_on_overflow */
1136 bfd_elf_generic_reloc, /* special_function */
1137 "R_PPC64_ADDR16_LO_DS",/* name */
1138 FALSE, /* partial_inplace */
1140 0xfffc, /* dst_mask */
1141 FALSE), /* pcrel_offset */
1143 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1144 HOWTO (R_PPC64_GOT16_DS, /* type */
1146 1, /* size (0 = byte, 1 = short, 2 = long) */
1148 FALSE, /* pc_relative */
1150 complain_overflow_signed, /* complain_on_overflow */
1151 ppc64_elf_unhandled_reloc, /* special_function */
1152 "R_PPC64_GOT16_DS", /* name */
1153 FALSE, /* partial_inplace */
1155 0xfffc, /* dst_mask */
1156 FALSE), /* pcrel_offset */
1158 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1159 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1161 1, /* size (0 = byte, 1 = short, 2 = long) */
1163 FALSE, /* pc_relative */
1165 complain_overflow_dont, /* complain_on_overflow */
1166 ppc64_elf_unhandled_reloc, /* special_function */
1167 "R_PPC64_GOT16_LO_DS", /* name */
1168 FALSE, /* partial_inplace */
1170 0xfffc, /* dst_mask */
1171 FALSE), /* pcrel_offset */
1173 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1174 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1176 1, /* size (0 = byte, 1 = short, 2 = long) */
1178 FALSE, /* pc_relative */
1180 complain_overflow_dont, /* complain_on_overflow */
1181 ppc64_elf_unhandled_reloc, /* special_function */
1182 "R_PPC64_PLT16_LO_DS", /* name */
1183 FALSE, /* partial_inplace */
1185 0xfffc, /* dst_mask */
1186 FALSE), /* pcrel_offset */
1188 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1189 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1191 1, /* size (0 = byte, 1 = short, 2 = long) */
1193 FALSE, /* pc_relative */
1195 complain_overflow_signed, /* complain_on_overflow */
1196 ppc64_elf_sectoff_reloc, /* special_function */
1197 "R_PPC64_SECTOFF_DS", /* name */
1198 FALSE, /* partial_inplace */
1200 0xfffc, /* dst_mask */
1201 FALSE), /* pcrel_offset */
1203 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1204 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1206 1, /* size (0 = byte, 1 = short, 2 = long) */
1208 FALSE, /* pc_relative */
1210 complain_overflow_dont, /* complain_on_overflow */
1211 ppc64_elf_sectoff_reloc, /* special_function */
1212 "R_PPC64_SECTOFF_LO_DS",/* name */
1213 FALSE, /* partial_inplace */
1215 0xfffc, /* dst_mask */
1216 FALSE), /* pcrel_offset */
1218 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1219 HOWTO (R_PPC64_TOC16_DS, /* type */
1221 1, /* size (0 = byte, 1 = short, 2 = long) */
1223 FALSE, /* pc_relative */
1225 complain_overflow_signed, /* complain_on_overflow */
1226 ppc64_elf_toc_reloc, /* special_function */
1227 "R_PPC64_TOC16_DS", /* name */
1228 FALSE, /* partial_inplace */
1230 0xfffc, /* dst_mask */
1231 FALSE), /* pcrel_offset */
1233 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1234 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1236 1, /* size (0 = byte, 1 = short, 2 = long) */
1238 FALSE, /* pc_relative */
1240 complain_overflow_dont, /* complain_on_overflow */
1241 ppc64_elf_toc_reloc, /* special_function */
1242 "R_PPC64_TOC16_LO_DS", /* name */
1243 FALSE, /* partial_inplace */
1245 0xfffc, /* dst_mask */
1246 FALSE), /* pcrel_offset */
1248 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1249 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1250 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1252 1, /* size (0 = byte, 1 = short, 2 = long) */
1254 FALSE, /* pc_relative */
1256 complain_overflow_signed, /* complain_on_overflow */
1257 ppc64_elf_unhandled_reloc, /* special_function */
1258 "R_PPC64_PLTGOT16_DS", /* name */
1259 FALSE, /* partial_inplace */
1261 0xfffc, /* dst_mask */
1262 FALSE), /* pcrel_offset */
1264 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1265 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1266 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1268 1, /* size (0 = byte, 1 = short, 2 = long) */
1270 FALSE, /* pc_relative */
1272 complain_overflow_dont, /* complain_on_overflow */
1273 ppc64_elf_unhandled_reloc, /* special_function */
1274 "R_PPC64_PLTGOT16_LO_DS",/* name */
1275 FALSE, /* partial_inplace */
1277 0xfffc, /* dst_mask */
1278 FALSE), /* pcrel_offset */
1280 /* Marker relocs for TLS. */
1283 2, /* size (0 = byte, 1 = short, 2 = long) */
1285 FALSE, /* pc_relative */
1287 complain_overflow_dont, /* complain_on_overflow */
1288 bfd_elf_generic_reloc, /* special_function */
1289 "R_PPC64_TLS", /* name */
1290 FALSE, /* partial_inplace */
1293 FALSE), /* pcrel_offset */
1295 HOWTO (R_PPC64_TLSGD,
1297 2, /* size (0 = byte, 1 = short, 2 = long) */
1299 FALSE, /* pc_relative */
1301 complain_overflow_dont, /* complain_on_overflow */
1302 bfd_elf_generic_reloc, /* special_function */
1303 "R_PPC64_TLSGD", /* name */
1304 FALSE, /* partial_inplace */
1307 FALSE), /* pcrel_offset */
1309 HOWTO (R_PPC64_TLSLD,
1311 2, /* size (0 = byte, 1 = short, 2 = long) */
1313 FALSE, /* pc_relative */
1315 complain_overflow_dont, /* complain_on_overflow */
1316 bfd_elf_generic_reloc, /* special_function */
1317 "R_PPC64_TLSLD", /* name */
1318 FALSE, /* partial_inplace */
1321 FALSE), /* pcrel_offset */
1323 HOWTO (R_PPC64_TOCSAVE,
1325 2, /* size (0 = byte, 1 = short, 2 = long) */
1327 FALSE, /* pc_relative */
1329 complain_overflow_dont, /* complain_on_overflow */
1330 bfd_elf_generic_reloc, /* special_function */
1331 "R_PPC64_TOCSAVE", /* name */
1332 FALSE, /* partial_inplace */
1335 FALSE), /* pcrel_offset */
1337 /* Computes the load module index of the load module that contains the
1338 definition of its TLS sym. */
1339 HOWTO (R_PPC64_DTPMOD64,
1341 4, /* size (0 = byte, 1 = short, 2 = long) */
1343 FALSE, /* pc_relative */
1345 complain_overflow_dont, /* complain_on_overflow */
1346 ppc64_elf_unhandled_reloc, /* special_function */
1347 "R_PPC64_DTPMOD64", /* name */
1348 FALSE, /* partial_inplace */
1350 ONES (64), /* dst_mask */
1351 FALSE), /* pcrel_offset */
1353 /* Computes a dtv-relative displacement, the difference between the value
1354 of sym+add and the base address of the thread-local storage block that
1355 contains the definition of sym, minus 0x8000. */
1356 HOWTO (R_PPC64_DTPREL64,
1358 4, /* size (0 = byte, 1 = short, 2 = long) */
1360 FALSE, /* pc_relative */
1362 complain_overflow_dont, /* complain_on_overflow */
1363 ppc64_elf_unhandled_reloc, /* special_function */
1364 "R_PPC64_DTPREL64", /* name */
1365 FALSE, /* partial_inplace */
1367 ONES (64), /* dst_mask */
1368 FALSE), /* pcrel_offset */
1370 /* A 16 bit dtprel reloc. */
1371 HOWTO (R_PPC64_DTPREL16,
1373 1, /* size (0 = byte, 1 = short, 2 = long) */
1375 FALSE, /* pc_relative */
1377 complain_overflow_signed, /* complain_on_overflow */
1378 ppc64_elf_unhandled_reloc, /* special_function */
1379 "R_PPC64_DTPREL16", /* name */
1380 FALSE, /* partial_inplace */
1382 0xffff, /* dst_mask */
1383 FALSE), /* pcrel_offset */
1385 /* Like DTPREL16, but no overflow. */
1386 HOWTO (R_PPC64_DTPREL16_LO,
1388 1, /* size (0 = byte, 1 = short, 2 = long) */
1390 FALSE, /* pc_relative */
1392 complain_overflow_dont, /* complain_on_overflow */
1393 ppc64_elf_unhandled_reloc, /* special_function */
1394 "R_PPC64_DTPREL16_LO", /* name */
1395 FALSE, /* partial_inplace */
1397 0xffff, /* dst_mask */
1398 FALSE), /* pcrel_offset */
1400 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1401 HOWTO (R_PPC64_DTPREL16_HI,
1402 16, /* rightshift */
1403 1, /* size (0 = byte, 1 = short, 2 = long) */
1405 FALSE, /* pc_relative */
1407 complain_overflow_signed, /* complain_on_overflow */
1408 ppc64_elf_unhandled_reloc, /* special_function */
1409 "R_PPC64_DTPREL16_HI", /* name */
1410 FALSE, /* partial_inplace */
1412 0xffff, /* dst_mask */
1413 FALSE), /* pcrel_offset */
1415 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1416 HOWTO (R_PPC64_DTPREL16_HA,
1417 16, /* rightshift */
1418 1, /* size (0 = byte, 1 = short, 2 = long) */
1420 FALSE, /* pc_relative */
1422 complain_overflow_signed, /* complain_on_overflow */
1423 ppc64_elf_unhandled_reloc, /* special_function */
1424 "R_PPC64_DTPREL16_HA", /* name */
1425 FALSE, /* partial_inplace */
1427 0xffff, /* dst_mask */
1428 FALSE), /* pcrel_offset */
1430 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1431 HOWTO (R_PPC64_DTPREL16_HIGHER,
1432 32, /* rightshift */
1433 1, /* size (0 = byte, 1 = short, 2 = long) */
1435 FALSE, /* pc_relative */
1437 complain_overflow_dont, /* complain_on_overflow */
1438 ppc64_elf_unhandled_reloc, /* special_function */
1439 "R_PPC64_DTPREL16_HIGHER", /* name */
1440 FALSE, /* partial_inplace */
1442 0xffff, /* dst_mask */
1443 FALSE), /* pcrel_offset */
1445 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1446 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1447 32, /* rightshift */
1448 1, /* size (0 = byte, 1 = short, 2 = long) */
1450 FALSE, /* pc_relative */
1452 complain_overflow_dont, /* complain_on_overflow */
1453 ppc64_elf_unhandled_reloc, /* special_function */
1454 "R_PPC64_DTPREL16_HIGHERA", /* name */
1455 FALSE, /* partial_inplace */
1457 0xffff, /* dst_mask */
1458 FALSE), /* pcrel_offset */
1460 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1461 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1462 48, /* rightshift */
1463 1, /* size (0 = byte, 1 = short, 2 = long) */
1465 FALSE, /* pc_relative */
1467 complain_overflow_dont, /* complain_on_overflow */
1468 ppc64_elf_unhandled_reloc, /* special_function */
1469 "R_PPC64_DTPREL16_HIGHEST", /* name */
1470 FALSE, /* partial_inplace */
1472 0xffff, /* dst_mask */
1473 FALSE), /* pcrel_offset */
1475 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1476 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1477 48, /* rightshift */
1478 1, /* size (0 = byte, 1 = short, 2 = long) */
1480 FALSE, /* pc_relative */
1482 complain_overflow_dont, /* complain_on_overflow */
1483 ppc64_elf_unhandled_reloc, /* special_function */
1484 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1485 FALSE, /* partial_inplace */
1487 0xffff, /* dst_mask */
1488 FALSE), /* pcrel_offset */
1490 /* Like DTPREL16, but for insns with a DS field. */
1491 HOWTO (R_PPC64_DTPREL16_DS,
1493 1, /* size (0 = byte, 1 = short, 2 = long) */
1495 FALSE, /* pc_relative */
1497 complain_overflow_signed, /* complain_on_overflow */
1498 ppc64_elf_unhandled_reloc, /* special_function */
1499 "R_PPC64_DTPREL16_DS", /* name */
1500 FALSE, /* partial_inplace */
1502 0xfffc, /* dst_mask */
1503 FALSE), /* pcrel_offset */
1505 /* Like DTPREL16_DS, but no overflow. */
1506 HOWTO (R_PPC64_DTPREL16_LO_DS,
1508 1, /* size (0 = byte, 1 = short, 2 = long) */
1510 FALSE, /* pc_relative */
1512 complain_overflow_dont, /* complain_on_overflow */
1513 ppc64_elf_unhandled_reloc, /* special_function */
1514 "R_PPC64_DTPREL16_LO_DS", /* name */
1515 FALSE, /* partial_inplace */
1517 0xfffc, /* dst_mask */
1518 FALSE), /* pcrel_offset */
1520 /* Computes a tp-relative displacement, the difference between the value of
1521 sym+add and the value of the thread pointer (r13). */
1522 HOWTO (R_PPC64_TPREL64,
1524 4, /* size (0 = byte, 1 = short, 2 = long) */
1526 FALSE, /* pc_relative */
1528 complain_overflow_dont, /* complain_on_overflow */
1529 ppc64_elf_unhandled_reloc, /* special_function */
1530 "R_PPC64_TPREL64", /* name */
1531 FALSE, /* partial_inplace */
1533 ONES (64), /* dst_mask */
1534 FALSE), /* pcrel_offset */
1536 /* A 16 bit tprel reloc. */
1537 HOWTO (R_PPC64_TPREL16,
1539 1, /* size (0 = byte, 1 = short, 2 = long) */
1541 FALSE, /* pc_relative */
1543 complain_overflow_signed, /* complain_on_overflow */
1544 ppc64_elf_unhandled_reloc, /* special_function */
1545 "R_PPC64_TPREL16", /* name */
1546 FALSE, /* partial_inplace */
1548 0xffff, /* dst_mask */
1549 FALSE), /* pcrel_offset */
1551 /* Like TPREL16, but no overflow. */
1552 HOWTO (R_PPC64_TPREL16_LO,
1554 1, /* size (0 = byte, 1 = short, 2 = long) */
1556 FALSE, /* pc_relative */
1558 complain_overflow_dont, /* complain_on_overflow */
1559 ppc64_elf_unhandled_reloc, /* special_function */
1560 "R_PPC64_TPREL16_LO", /* name */
1561 FALSE, /* partial_inplace */
1563 0xffff, /* dst_mask */
1564 FALSE), /* pcrel_offset */
1566 /* Like TPREL16_LO, but next higher group of 16 bits. */
1567 HOWTO (R_PPC64_TPREL16_HI,
1568 16, /* rightshift */
1569 1, /* size (0 = byte, 1 = short, 2 = long) */
1571 FALSE, /* pc_relative */
1573 complain_overflow_signed, /* complain_on_overflow */
1574 ppc64_elf_unhandled_reloc, /* special_function */
1575 "R_PPC64_TPREL16_HI", /* name */
1576 FALSE, /* partial_inplace */
1578 0xffff, /* dst_mask */
1579 FALSE), /* pcrel_offset */
1581 /* Like TPREL16_HI, but adjust for low 16 bits. */
1582 HOWTO (R_PPC64_TPREL16_HA,
1583 16, /* rightshift */
1584 1, /* size (0 = byte, 1 = short, 2 = long) */
1586 FALSE, /* pc_relative */
1588 complain_overflow_signed, /* complain_on_overflow */
1589 ppc64_elf_unhandled_reloc, /* special_function */
1590 "R_PPC64_TPREL16_HA", /* name */
1591 FALSE, /* partial_inplace */
1593 0xffff, /* dst_mask */
1594 FALSE), /* pcrel_offset */
1596 /* Like TPREL16_HI, but next higher group of 16 bits. */
1597 HOWTO (R_PPC64_TPREL16_HIGHER,
1598 32, /* rightshift */
1599 1, /* size (0 = byte, 1 = short, 2 = long) */
1601 FALSE, /* pc_relative */
1603 complain_overflow_dont, /* complain_on_overflow */
1604 ppc64_elf_unhandled_reloc, /* special_function */
1605 "R_PPC64_TPREL16_HIGHER", /* name */
1606 FALSE, /* partial_inplace */
1608 0xffff, /* dst_mask */
1609 FALSE), /* pcrel_offset */
1611 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1612 HOWTO (R_PPC64_TPREL16_HIGHERA,
1613 32, /* rightshift */
1614 1, /* size (0 = byte, 1 = short, 2 = long) */
1616 FALSE, /* pc_relative */
1618 complain_overflow_dont, /* complain_on_overflow */
1619 ppc64_elf_unhandled_reloc, /* special_function */
1620 "R_PPC64_TPREL16_HIGHERA", /* name */
1621 FALSE, /* partial_inplace */
1623 0xffff, /* dst_mask */
1624 FALSE), /* pcrel_offset */
1626 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1627 HOWTO (R_PPC64_TPREL16_HIGHEST,
1628 48, /* rightshift */
1629 1, /* size (0 = byte, 1 = short, 2 = long) */
1631 FALSE, /* pc_relative */
1633 complain_overflow_dont, /* complain_on_overflow */
1634 ppc64_elf_unhandled_reloc, /* special_function */
1635 "R_PPC64_TPREL16_HIGHEST", /* name */
1636 FALSE, /* partial_inplace */
1638 0xffff, /* dst_mask */
1639 FALSE), /* pcrel_offset */
1641 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1642 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1643 48, /* rightshift */
1644 1, /* size (0 = byte, 1 = short, 2 = long) */
1646 FALSE, /* pc_relative */
1648 complain_overflow_dont, /* complain_on_overflow */
1649 ppc64_elf_unhandled_reloc, /* special_function */
1650 "R_PPC64_TPREL16_HIGHESTA", /* name */
1651 FALSE, /* partial_inplace */
1653 0xffff, /* dst_mask */
1654 FALSE), /* pcrel_offset */
1656 /* Like TPREL16, but for insns with a DS field. */
1657 HOWTO (R_PPC64_TPREL16_DS,
1659 1, /* size (0 = byte, 1 = short, 2 = long) */
1661 FALSE, /* pc_relative */
1663 complain_overflow_signed, /* complain_on_overflow */
1664 ppc64_elf_unhandled_reloc, /* special_function */
1665 "R_PPC64_TPREL16_DS", /* name */
1666 FALSE, /* partial_inplace */
1668 0xfffc, /* dst_mask */
1669 FALSE), /* pcrel_offset */
1671 /* Like TPREL16_DS, but no overflow. */
1672 HOWTO (R_PPC64_TPREL16_LO_DS,
1674 1, /* size (0 = byte, 1 = short, 2 = long) */
1676 FALSE, /* pc_relative */
1678 complain_overflow_dont, /* complain_on_overflow */
1679 ppc64_elf_unhandled_reloc, /* special_function */
1680 "R_PPC64_TPREL16_LO_DS", /* name */
1681 FALSE, /* partial_inplace */
1683 0xfffc, /* dst_mask */
1684 FALSE), /* pcrel_offset */
1686 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1687 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1688 to the first entry relative to the TOC base (r2). */
1689 HOWTO (R_PPC64_GOT_TLSGD16,
1691 1, /* size (0 = byte, 1 = short, 2 = long) */
1693 FALSE, /* pc_relative */
1695 complain_overflow_signed, /* complain_on_overflow */
1696 ppc64_elf_unhandled_reloc, /* special_function */
1697 "R_PPC64_GOT_TLSGD16", /* name */
1698 FALSE, /* partial_inplace */
1700 0xffff, /* dst_mask */
1701 FALSE), /* pcrel_offset */
1703 /* Like GOT_TLSGD16, but no overflow. */
1704 HOWTO (R_PPC64_GOT_TLSGD16_LO,
1706 1, /* size (0 = byte, 1 = short, 2 = long) */
1708 FALSE, /* pc_relative */
1710 complain_overflow_dont, /* complain_on_overflow */
1711 ppc64_elf_unhandled_reloc, /* special_function */
1712 "R_PPC64_GOT_TLSGD16_LO", /* name */
1713 FALSE, /* partial_inplace */
1715 0xffff, /* dst_mask */
1716 FALSE), /* pcrel_offset */
1718 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1719 HOWTO (R_PPC64_GOT_TLSGD16_HI,
1720 16, /* rightshift */
1721 1, /* size (0 = byte, 1 = short, 2 = long) */
1723 FALSE, /* pc_relative */
1725 complain_overflow_signed, /* complain_on_overflow */
1726 ppc64_elf_unhandled_reloc, /* special_function */
1727 "R_PPC64_GOT_TLSGD16_HI", /* name */
1728 FALSE, /* partial_inplace */
1730 0xffff, /* dst_mask */
1731 FALSE), /* pcrel_offset */
1733 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1734 HOWTO (R_PPC64_GOT_TLSGD16_HA,
1735 16, /* rightshift */
1736 1, /* size (0 = byte, 1 = short, 2 = long) */
1738 FALSE, /* pc_relative */
1740 complain_overflow_signed, /* complain_on_overflow */
1741 ppc64_elf_unhandled_reloc, /* special_function */
1742 "R_PPC64_GOT_TLSGD16_HA", /* name */
1743 FALSE, /* partial_inplace */
1745 0xffff, /* dst_mask */
1746 FALSE), /* pcrel_offset */
1748 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1749 with values (sym+add)@dtpmod and zero, and computes the offset to the
1750 first entry relative to the TOC base (r2). */
1751 HOWTO (R_PPC64_GOT_TLSLD16,
1753 1, /* size (0 = byte, 1 = short, 2 = long) */
1755 FALSE, /* pc_relative */
1757 complain_overflow_signed, /* complain_on_overflow */
1758 ppc64_elf_unhandled_reloc, /* special_function */
1759 "R_PPC64_GOT_TLSLD16", /* name */
1760 FALSE, /* partial_inplace */
1762 0xffff, /* dst_mask */
1763 FALSE), /* pcrel_offset */
1765 /* Like GOT_TLSLD16, but no overflow. */
1766 HOWTO (R_PPC64_GOT_TLSLD16_LO,
1768 1, /* size (0 = byte, 1 = short, 2 = long) */
1770 FALSE, /* pc_relative */
1772 complain_overflow_dont, /* complain_on_overflow */
1773 ppc64_elf_unhandled_reloc, /* special_function */
1774 "R_PPC64_GOT_TLSLD16_LO", /* name */
1775 FALSE, /* partial_inplace */
1777 0xffff, /* dst_mask */
1778 FALSE), /* pcrel_offset */
1780 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1781 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1782 16, /* rightshift */
1783 1, /* size (0 = byte, 1 = short, 2 = long) */
1785 FALSE, /* pc_relative */
1787 complain_overflow_signed, /* complain_on_overflow */
1788 ppc64_elf_unhandled_reloc, /* special_function */
1789 "R_PPC64_GOT_TLSLD16_HI", /* name */
1790 FALSE, /* partial_inplace */
1792 0xffff, /* dst_mask */
1793 FALSE), /* pcrel_offset */
1795 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1796 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1797 16, /* rightshift */
1798 1, /* size (0 = byte, 1 = short, 2 = long) */
1800 FALSE, /* pc_relative */
1802 complain_overflow_signed, /* complain_on_overflow */
1803 ppc64_elf_unhandled_reloc, /* special_function */
1804 "R_PPC64_GOT_TLSLD16_HA", /* name */
1805 FALSE, /* partial_inplace */
1807 0xffff, /* dst_mask */
1808 FALSE), /* pcrel_offset */
1810 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1811 the offset to the entry relative to the TOC base (r2). */
1812 HOWTO (R_PPC64_GOT_DTPREL16_DS,
1814 1, /* size (0 = byte, 1 = short, 2 = long) */
1816 FALSE, /* pc_relative */
1818 complain_overflow_signed, /* complain_on_overflow */
1819 ppc64_elf_unhandled_reloc, /* special_function */
1820 "R_PPC64_GOT_DTPREL16_DS", /* name */
1821 FALSE, /* partial_inplace */
1823 0xfffc, /* dst_mask */
1824 FALSE), /* pcrel_offset */
1826 /* Like GOT_DTPREL16_DS, but no overflow. */
1827 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
1829 1, /* size (0 = byte, 1 = short, 2 = long) */
1831 FALSE, /* pc_relative */
1833 complain_overflow_dont, /* complain_on_overflow */
1834 ppc64_elf_unhandled_reloc, /* special_function */
1835 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1836 FALSE, /* partial_inplace */
1838 0xfffc, /* dst_mask */
1839 FALSE), /* pcrel_offset */
1841 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1842 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1843 16, /* rightshift */
1844 1, /* size (0 = byte, 1 = short, 2 = long) */
1846 FALSE, /* pc_relative */
1848 complain_overflow_signed, /* complain_on_overflow */
1849 ppc64_elf_unhandled_reloc, /* special_function */
1850 "R_PPC64_GOT_DTPREL16_HI", /* name */
1851 FALSE, /* partial_inplace */
1853 0xffff, /* dst_mask */
1854 FALSE), /* pcrel_offset */
1856 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1857 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1858 16, /* rightshift */
1859 1, /* size (0 = byte, 1 = short, 2 = long) */
1861 FALSE, /* pc_relative */
1863 complain_overflow_signed, /* complain_on_overflow */
1864 ppc64_elf_unhandled_reloc, /* special_function */
1865 "R_PPC64_GOT_DTPREL16_HA", /* name */
1866 FALSE, /* partial_inplace */
1868 0xffff, /* dst_mask */
1869 FALSE), /* pcrel_offset */
1871 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1872 offset to the entry relative to the TOC base (r2). */
1873 HOWTO (R_PPC64_GOT_TPREL16_DS,
1875 1, /* size (0 = byte, 1 = short, 2 = long) */
1877 FALSE, /* pc_relative */
1879 complain_overflow_signed, /* complain_on_overflow */
1880 ppc64_elf_unhandled_reloc, /* special_function */
1881 "R_PPC64_GOT_TPREL16_DS", /* name */
1882 FALSE, /* partial_inplace */
1884 0xfffc, /* dst_mask */
1885 FALSE), /* pcrel_offset */
1887 /* Like GOT_TPREL16_DS, but no overflow. */
1888 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
1890 1, /* size (0 = byte, 1 = short, 2 = long) */
1892 FALSE, /* pc_relative */
1894 complain_overflow_dont, /* complain_on_overflow */
1895 ppc64_elf_unhandled_reloc, /* special_function */
1896 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1897 FALSE, /* partial_inplace */
1899 0xfffc, /* dst_mask */
1900 FALSE), /* pcrel_offset */
1902 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1903 HOWTO (R_PPC64_GOT_TPREL16_HI,
1904 16, /* rightshift */
1905 1, /* size (0 = byte, 1 = short, 2 = long) */
1907 FALSE, /* pc_relative */
1909 complain_overflow_signed, /* complain_on_overflow */
1910 ppc64_elf_unhandled_reloc, /* special_function */
1911 "R_PPC64_GOT_TPREL16_HI", /* name */
1912 FALSE, /* partial_inplace */
1914 0xffff, /* dst_mask */
1915 FALSE), /* pcrel_offset */
1917 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1918 HOWTO (R_PPC64_GOT_TPREL16_HA,
1919 16, /* rightshift */
1920 1, /* size (0 = byte, 1 = short, 2 = long) */
1922 FALSE, /* pc_relative */
1924 complain_overflow_signed, /* complain_on_overflow */
1925 ppc64_elf_unhandled_reloc, /* special_function */
1926 "R_PPC64_GOT_TPREL16_HA", /* name */
1927 FALSE, /* partial_inplace */
1929 0xffff, /* dst_mask */
1930 FALSE), /* pcrel_offset */
1932 HOWTO (R_PPC64_JMP_IREL, /* type */
1934 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1936 FALSE, /* pc_relative */
1938 complain_overflow_dont, /* complain_on_overflow */
1939 ppc64_elf_unhandled_reloc, /* special_function */
1940 "R_PPC64_JMP_IREL", /* name */
1941 FALSE, /* partial_inplace */
1944 FALSE), /* pcrel_offset */
1946 HOWTO (R_PPC64_IRELATIVE, /* type */
1948 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1950 FALSE, /* pc_relative */
1952 complain_overflow_dont, /* complain_on_overflow */
1953 bfd_elf_generic_reloc, /* special_function */
1954 "R_PPC64_IRELATIVE", /* name */
1955 FALSE, /* partial_inplace */
1957 ONES (64), /* dst_mask */
1958 FALSE), /* pcrel_offset */
1960 /* A 16 bit relative relocation. */
1961 HOWTO (R_PPC64_REL16, /* type */
1963 1, /* size (0 = byte, 1 = short, 2 = long) */
1965 TRUE, /* pc_relative */
1967 complain_overflow_signed, /* complain_on_overflow */
1968 bfd_elf_generic_reloc, /* special_function */
1969 "R_PPC64_REL16", /* name */
1970 FALSE, /* partial_inplace */
1972 0xffff, /* dst_mask */
1973 TRUE), /* pcrel_offset */
1975 /* A 16 bit relative relocation without overflow. */
1976 HOWTO (R_PPC64_REL16_LO, /* type */
1978 1, /* size (0 = byte, 1 = short, 2 = long) */
1980 TRUE, /* pc_relative */
1982 complain_overflow_dont,/* complain_on_overflow */
1983 bfd_elf_generic_reloc, /* special_function */
1984 "R_PPC64_REL16_LO", /* name */
1985 FALSE, /* partial_inplace */
1987 0xffff, /* dst_mask */
1988 TRUE), /* pcrel_offset */
1990 /* The high order 16 bits of a relative address. */
1991 HOWTO (R_PPC64_REL16_HI, /* type */
1992 16, /* rightshift */
1993 1, /* size (0 = byte, 1 = short, 2 = long) */
1995 TRUE, /* pc_relative */
1997 complain_overflow_signed, /* complain_on_overflow */
1998 bfd_elf_generic_reloc, /* special_function */
1999 "R_PPC64_REL16_HI", /* name */
2000 FALSE, /* partial_inplace */
2002 0xffff, /* dst_mask */
2003 TRUE), /* pcrel_offset */
2005 /* The high order 16 bits of a relative address, plus 1 if the contents of
2006 the low 16 bits, treated as a signed number, is negative. */
2007 HOWTO (R_PPC64_REL16_HA, /* type */
2008 16, /* rightshift */
2009 1, /* size (0 = byte, 1 = short, 2 = long) */
2011 TRUE, /* pc_relative */
2013 complain_overflow_signed, /* complain_on_overflow */
2014 ppc64_elf_ha_reloc, /* special_function */
2015 "R_PPC64_REL16_HA", /* name */
2016 FALSE, /* partial_inplace */
2018 0xffff, /* dst_mask */
2019 TRUE), /* pcrel_offset */
2021 /* Like R_PPC64_ADDR16_HI, but no overflow. */
2022 HOWTO (R_PPC64_ADDR16_HIGH, /* type */
2023 16, /* rightshift */
2024 1, /* size (0 = byte, 1 = short, 2 = long) */
2026 FALSE, /* pc_relative */
2028 complain_overflow_dont, /* complain_on_overflow */
2029 bfd_elf_generic_reloc, /* special_function */
2030 "R_PPC64_ADDR16_HIGH", /* name */
2031 FALSE, /* partial_inplace */
2033 0xffff, /* dst_mask */
2034 FALSE), /* pcrel_offset */
2036 /* Like R_PPC64_ADDR16_HA, but no overflow. */
2037 HOWTO (R_PPC64_ADDR16_HIGHA, /* type */
2038 16, /* rightshift */
2039 1, /* size (0 = byte, 1 = short, 2 = long) */
2041 FALSE, /* pc_relative */
2043 complain_overflow_dont, /* complain_on_overflow */
2044 ppc64_elf_ha_reloc, /* special_function */
2045 "R_PPC64_ADDR16_HIGHA", /* name */
2046 FALSE, /* partial_inplace */
2048 0xffff, /* dst_mask */
2049 FALSE), /* pcrel_offset */
2051 /* Like R_PPC64_DTPREL16_HI, but no overflow. */
2052 HOWTO (R_PPC64_DTPREL16_HIGH,
2053 16, /* rightshift */
2054 1, /* size (0 = byte, 1 = short, 2 = long) */
2056 FALSE, /* pc_relative */
2058 complain_overflow_dont, /* complain_on_overflow */
2059 ppc64_elf_unhandled_reloc, /* special_function */
2060 "R_PPC64_DTPREL16_HIGH", /* name */
2061 FALSE, /* partial_inplace */
2063 0xffff, /* dst_mask */
2064 FALSE), /* pcrel_offset */
2066 /* Like R_PPC64_DTPREL16_HA, but no overflow. */
2067 HOWTO (R_PPC64_DTPREL16_HIGHA,
2068 16, /* rightshift */
2069 1, /* size (0 = byte, 1 = short, 2 = long) */
2071 FALSE, /* pc_relative */
2073 complain_overflow_dont, /* complain_on_overflow */
2074 ppc64_elf_unhandled_reloc, /* special_function */
2075 "R_PPC64_DTPREL16_HIGHA", /* name */
2076 FALSE, /* partial_inplace */
2078 0xffff, /* dst_mask */
2079 FALSE), /* pcrel_offset */
2081 /* Like R_PPC64_TPREL16_HI, but no overflow. */
2082 HOWTO (R_PPC64_TPREL16_HIGH,
2083 16, /* rightshift */
2084 1, /* size (0 = byte, 1 = short, 2 = long) */
2086 FALSE, /* pc_relative */
2088 complain_overflow_dont, /* complain_on_overflow */
2089 ppc64_elf_unhandled_reloc, /* special_function */
2090 "R_PPC64_TPREL16_HIGH", /* name */
2091 FALSE, /* partial_inplace */
2093 0xffff, /* dst_mask */
2094 FALSE), /* pcrel_offset */
2096 /* Like R_PPC64_TPREL16_HA, but no overflow. */
2097 HOWTO (R_PPC64_TPREL16_HIGHA,
2098 16, /* rightshift */
2099 1, /* size (0 = byte, 1 = short, 2 = long) */
2101 FALSE, /* pc_relative */
2103 complain_overflow_dont, /* complain_on_overflow */
2104 ppc64_elf_unhandled_reloc, /* special_function */
2105 "R_PPC64_TPREL16_HIGHA", /* name */
2106 FALSE, /* partial_inplace */
2108 0xffff, /* dst_mask */
2109 FALSE), /* pcrel_offset */
2111 /* Like ADDR64, but use local entry point of function. */
2112 HOWTO (R_PPC64_ADDR64_LOCAL, /* type */
2114 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
2116 FALSE, /* pc_relative */
2118 complain_overflow_dont, /* complain_on_overflow */
2119 bfd_elf_generic_reloc, /* special_function */
2120 "R_PPC64_ADDR64_LOCAL", /* name */
2121 FALSE, /* partial_inplace */
2123 ONES (64), /* dst_mask */
2124 FALSE), /* pcrel_offset */
2126 /* GNU extension to record C++ vtable hierarchy. */
2127 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
2129 0, /* size (0 = byte, 1 = short, 2 = long) */
2131 FALSE, /* pc_relative */
2133 complain_overflow_dont, /* complain_on_overflow */
2134 NULL, /* special_function */
2135 "R_PPC64_GNU_VTINHERIT", /* name */
2136 FALSE, /* partial_inplace */
2139 FALSE), /* pcrel_offset */
2141 /* GNU extension to record C++ vtable member usage. */
2142 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
2144 0, /* size (0 = byte, 1 = short, 2 = long) */
2146 FALSE, /* pc_relative */
2148 complain_overflow_dont, /* complain_on_overflow */
2149 NULL, /* special_function */
2150 "R_PPC64_GNU_VTENTRY", /* name */
2151 FALSE, /* partial_inplace */
2154 FALSE), /* pcrel_offset */
2158 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
2162 ppc_howto_init (void)
2164 unsigned int i, type;
2167 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2170 type = ppc64_elf_howto_raw[i].type;
2171 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2172 / sizeof (ppc64_elf_howto_table[0])));
2173 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
2177 static reloc_howto_type *
2178 ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2179 bfd_reloc_code_real_type code)
2181 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
2183 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2184 /* Initialize howto table if needed. */
2192 case BFD_RELOC_NONE: r = R_PPC64_NONE;
2194 case BFD_RELOC_32: r = R_PPC64_ADDR32;
2196 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
2198 case BFD_RELOC_16: r = R_PPC64_ADDR16;
2200 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
2202 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
2204 case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH;
2206 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
2208 case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA;
2210 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
2212 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
2214 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
2216 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
2218 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
2220 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
2222 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
2224 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
2226 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
2228 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
2230 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
2232 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
2234 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
2236 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
2238 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
2240 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
2242 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
2244 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
2246 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
2248 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
2250 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
2252 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
2254 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
2256 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
2258 case BFD_RELOC_64: r = R_PPC64_ADDR64;
2260 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
2262 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
2264 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
2266 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
2268 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
2270 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
2272 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
2274 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
2276 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
2278 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
2280 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
2282 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
2284 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
2286 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
2288 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
2290 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
2292 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
2294 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
2296 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
2298 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
2300 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
2302 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
2304 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
2306 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
2308 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
2310 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
2312 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
2314 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
2316 case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD;
2318 case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD;
2320 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
2322 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
2324 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
2326 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
2328 case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH;
2330 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
2332 case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA;
2334 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
2336 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2338 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2340 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2342 case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH;
2344 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2346 case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA;
2348 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2350 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2352 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2354 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2356 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2358 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2360 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2362 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2364 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2366 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2368 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2370 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2372 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2374 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2376 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2378 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2380 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2382 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2384 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2386 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2388 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2390 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2392 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2394 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2396 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2398 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2400 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2402 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2404 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2406 case BFD_RELOC_16_PCREL: r = R_PPC64_REL16;
2408 case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO;
2410 case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI;
2412 case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA;
2414 case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL;
2416 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2418 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
2422 return ppc64_elf_howto_table[r];
2425 static reloc_howto_type *
2426 ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2432 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2434 if (ppc64_elf_howto_raw[i].name != NULL
2435 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2436 return &ppc64_elf_howto_raw[i];
2441 /* Set the howto pointer for a PowerPC ELF reloc. */
2444 ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2445 Elf_Internal_Rela *dst)
2449 /* Initialize howto table if needed. */
2450 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2453 type = ELF64_R_TYPE (dst->r_info);
2454 if (type >= (sizeof (ppc64_elf_howto_table)
2455 / sizeof (ppc64_elf_howto_table[0])))
2457 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2459 type = R_PPC64_NONE;
2461 cache_ptr->howto = ppc64_elf_howto_table[type];
2464 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2466 static bfd_reloc_status_type
2467 ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2468 void *data, asection *input_section,
2469 bfd *output_bfd, char **error_message)
2471 /* If this is a relocatable link (output_bfd test tells us), just
2472 call the generic function. Any adjustment will be done at final
2474 if (output_bfd != NULL)
2475 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2476 input_section, output_bfd, error_message);
2478 /* Adjust the addend for sign extension of the low 16 bits.
2479 We won't actually be using the low 16 bits, so trashing them
2481 reloc_entry->addend += 0x8000;
2482 return bfd_reloc_continue;
2485 static bfd_reloc_status_type
2486 ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2487 void *data, asection *input_section,
2488 bfd *output_bfd, char **error_message)
2490 if (output_bfd != NULL)
2491 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2492 input_section, output_bfd, error_message);
2494 if (strcmp (symbol->section->name, ".opd") == 0
2495 && (symbol->section->owner->flags & DYNAMIC) == 0)
2497 bfd_vma dest = opd_entry_value (symbol->section,
2498 symbol->value + reloc_entry->addend,
2500 if (dest != (bfd_vma) -1)
2501 reloc_entry->addend = dest - (symbol->value
2502 + symbol->section->output_section->vma
2503 + symbol->section->output_offset);
2507 elf_symbol_type *elfsym = (elf_symbol_type *) symbol;
2509 if (symbol->section->owner != abfd
2510 && abiversion (symbol->section->owner) >= 2)
2514 for (i = 0; i < symbol->section->owner->symcount; ++i)
2516 asymbol *symdef = symbol->section->owner->outsymbols[i];
2518 if (strcmp (symdef->name, symbol->name) == 0)
2520 elfsym = (elf_symbol_type *) symdef;
2526 += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other);
2528 return bfd_reloc_continue;
2531 static bfd_reloc_status_type
2532 ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2533 void *data, asection *input_section,
2534 bfd *output_bfd, char **error_message)
2537 enum elf_ppc64_reloc_type r_type;
2538 bfd_size_type octets;
2539 /* Assume 'at' branch hints. */
2540 bfd_boolean is_isa_v2 = TRUE;
2542 /* If this is a relocatable link (output_bfd test tells us), just
2543 call the generic function. Any adjustment will be done at final
2545 if (output_bfd != NULL)
2546 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2547 input_section, output_bfd, error_message);
2549 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2550 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2551 insn &= ~(0x01 << 21);
2552 r_type = reloc_entry->howto->type;
2553 if (r_type == R_PPC64_ADDR14_BRTAKEN
2554 || r_type == R_PPC64_REL14_BRTAKEN)
2555 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2559 /* Set 'a' bit. This is 0b00010 in BO field for branch
2560 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2561 for branch on CTR insns (BO == 1a00t or 1a01t). */
2562 if ((insn & (0x14 << 21)) == (0x04 << 21))
2564 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2574 if (!bfd_is_com_section (symbol->section))
2575 target = symbol->value;
2576 target += symbol->section->output_section->vma;
2577 target += symbol->section->output_offset;
2578 target += reloc_entry->addend;
2580 from = (reloc_entry->address
2581 + input_section->output_offset
2582 + input_section->output_section->vma);
2584 /* Invert 'y' bit if not the default. */
2585 if ((bfd_signed_vma) (target - from) < 0)
2588 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2590 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2591 input_section, output_bfd, error_message);
2594 static bfd_reloc_status_type
2595 ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2596 void *data, asection *input_section,
2597 bfd *output_bfd, char **error_message)
2599 /* If this is a relocatable link (output_bfd test tells us), just
2600 call the generic function. Any adjustment will be done at final
2602 if (output_bfd != NULL)
2603 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2604 input_section, output_bfd, error_message);
2606 /* Subtract the symbol section base address. */
2607 reloc_entry->addend -= symbol->section->output_section->vma;
2608 return bfd_reloc_continue;
2611 static bfd_reloc_status_type
2612 ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2613 void *data, asection *input_section,
2614 bfd *output_bfd, char **error_message)
2616 /* If this is a relocatable link (output_bfd test tells us), just
2617 call the generic function. Any adjustment will be done at final
2619 if (output_bfd != NULL)
2620 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2621 input_section, output_bfd, error_message);
2623 /* Subtract the symbol section base address. */
2624 reloc_entry->addend -= symbol->section->output_section->vma;
2626 /* Adjust the addend for sign extension of the low 16 bits. */
2627 reloc_entry->addend += 0x8000;
2628 return bfd_reloc_continue;
2631 static bfd_reloc_status_type
2632 ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2633 void *data, asection *input_section,
2634 bfd *output_bfd, char **error_message)
2638 /* If this is a relocatable link (output_bfd test tells us), just
2639 call the generic function. Any adjustment will be done at final
2641 if (output_bfd != NULL)
2642 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2643 input_section, output_bfd, error_message);
2645 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2647 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
2649 /* Subtract the TOC base address. */
2650 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2651 return bfd_reloc_continue;
2654 static bfd_reloc_status_type
2655 ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2656 void *data, asection *input_section,
2657 bfd *output_bfd, char **error_message)
2661 /* If this is a relocatable link (output_bfd test tells us), just
2662 call the generic function. Any adjustment will be done at final
2664 if (output_bfd != NULL)
2665 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2666 input_section, output_bfd, error_message);
2668 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2670 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
2672 /* Subtract the TOC base address. */
2673 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2675 /* Adjust the addend for sign extension of the low 16 bits. */
2676 reloc_entry->addend += 0x8000;
2677 return bfd_reloc_continue;
2680 static bfd_reloc_status_type
2681 ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2682 void *data, asection *input_section,
2683 bfd *output_bfd, char **error_message)
2686 bfd_size_type octets;
2688 /* If this is a relocatable link (output_bfd test tells us), just
2689 call the generic function. Any adjustment will be done at final
2691 if (output_bfd != NULL)
2692 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2693 input_section, output_bfd, error_message);
2695 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2697 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
2699 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2700 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2701 return bfd_reloc_ok;
2704 static bfd_reloc_status_type
2705 ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2706 void *data, asection *input_section,
2707 bfd *output_bfd, char **error_message)
2709 /* If this is a relocatable link (output_bfd test tells us), just
2710 call the generic function. Any adjustment will be done at final
2712 if (output_bfd != NULL)
2713 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2714 input_section, output_bfd, error_message);
2716 if (error_message != NULL)
2718 static char buf[60];
2719 sprintf (buf, "generic linker can't handle %s",
2720 reloc_entry->howto->name);
2721 *error_message = buf;
2723 return bfd_reloc_dangerous;
2726 /* Track GOT entries needed for a given symbol. We might need more
2727 than one got entry per symbol. */
2730 struct got_entry *next;
2732 /* The symbol addend that we'll be placing in the GOT. */
2735 /* Unlike other ELF targets, we use separate GOT entries for the same
2736 symbol referenced from different input files. This is to support
2737 automatic multiple TOC/GOT sections, where the TOC base can vary
2738 from one input file to another. After partitioning into TOC groups
2739 we merge entries within the group.
2741 Point to the BFD owning this GOT entry. */
2744 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2745 TLS_TPREL or TLS_DTPREL for tls entries. */
2746 unsigned char tls_type;
2748 /* Non-zero if got.ent points to real entry. */
2749 unsigned char is_indirect;
2751 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2754 bfd_signed_vma refcount;
2756 struct got_entry *ent;
2760 /* The same for PLT. */
2763 struct plt_entry *next;
2769 bfd_signed_vma refcount;
2774 struct ppc64_elf_obj_tdata
2776 struct elf_obj_tdata elf;
2778 /* Shortcuts to dynamic linker sections. */
2782 /* Used during garbage collection. We attach global symbols defined
2783 on removed .opd entries to this section so that the sym is removed. */
2784 asection *deleted_section;
2786 /* TLS local dynamic got entry handling. Support for multiple GOT
2787 sections means we potentially need one of these for each input bfd. */
2788 struct got_entry tlsld_got;
2791 /* A copy of relocs before they are modified for --emit-relocs. */
2792 Elf_Internal_Rela *relocs;
2794 /* Section contents. */
2798 /* Nonzero if this bfd has small toc/got relocs, ie. that expect
2799 the reloc to be in the range -32768 to 32767. */
2800 unsigned int has_small_toc_reloc : 1;
2802 /* Set if toc/got ha relocs detected not using r2, or lo reloc
2803 instruction not one we handle. */
2804 unsigned int unexpected_toc_insn : 1;
2807 #define ppc64_elf_tdata(bfd) \
2808 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2810 #define ppc64_tlsld_got(bfd) \
2811 (&ppc64_elf_tdata (bfd)->tlsld_got)
2813 #define is_ppc64_elf(bfd) \
2814 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2815 && elf_object_id (bfd) == PPC64_ELF_DATA)
2817 /* Override the generic function because we store some extras. */
2820 ppc64_elf_mkobject (bfd *abfd)
2822 return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata),
2826 /* Fix bad default arch selected for a 64 bit input bfd when the
2827 default is 32 bit. */
2830 ppc64_elf_object_p (bfd *abfd)
2832 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2834 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2836 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2838 /* Relies on arch after 32 bit default being 64 bit default. */
2839 abfd->arch_info = abfd->arch_info->next;
2840 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2846 /* Support for core dump NOTE sections. */
2849 ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2851 size_t offset, size;
2853 if (note->descsz != 504)
2857 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2860 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32);
2866 /* Make a ".reg/999" section. */
2867 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2868 size, note->descpos + offset);
2872 ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2874 if (note->descsz != 136)
2877 elf_tdata (abfd)->core->pid
2878 = bfd_get_32 (abfd, note->descdata + 24);
2879 elf_tdata (abfd)->core->program
2880 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2881 elf_tdata (abfd)->core->command
2882 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2888 ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2901 va_start (ap, note_type);
2902 memset (data, 0, sizeof (data));
2903 strncpy (data + 40, va_arg (ap, const char *), 16);
2904 strncpy (data + 56, va_arg (ap, const char *), 80);
2906 return elfcore_write_note (abfd, buf, bufsiz,
2907 "CORE", note_type, data, sizeof (data));
2918 va_start (ap, note_type);
2919 memset (data, 0, 112);
2920 pid = va_arg (ap, long);
2921 bfd_put_32 (abfd, pid, data + 32);
2922 cursig = va_arg (ap, int);
2923 bfd_put_16 (abfd, cursig, data + 12);
2924 greg = va_arg (ap, const void *);
2925 memcpy (data + 112, greg, 384);
2926 memset (data + 496, 0, 8);
2928 return elfcore_write_note (abfd, buf, bufsiz,
2929 "CORE", note_type, data, sizeof (data));
2934 /* Add extra PPC sections. */
2936 static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
2938 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
2939 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2940 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2941 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2942 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2943 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2944 { NULL, 0, 0, 0, 0 }
2947 enum _ppc64_sec_type {
2953 struct _ppc64_elf_section_data
2955 struct bfd_elf_section_data elf;
2959 /* An array with one entry for each opd function descriptor,
2960 and some spares since opd entries may be either 16 or 24 bytes. */
2961 #define OPD_NDX(OFF) ((OFF) >> 4)
2962 struct _opd_sec_data
2964 /* Points to the function code section for local opd entries. */
2965 asection **func_sec;
2967 /* After editing .opd, adjust references to opd local syms. */
2971 /* An array for toc sections, indexed by offset/8. */
2972 struct _toc_sec_data
2974 /* Specifies the relocation symbol index used at a given toc offset. */
2977 /* And the relocation addend. */
2982 enum _ppc64_sec_type sec_type:2;
2984 /* Flag set when small branches are detected. Used to
2985 select suitable defaults for the stub group size. */
2986 unsigned int has_14bit_branch:1;
2989 #define ppc64_elf_section_data(sec) \
2990 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2993 ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
2995 if (!sec->used_by_bfd)
2997 struct _ppc64_elf_section_data *sdata;
2998 bfd_size_type amt = sizeof (*sdata);
3000 sdata = bfd_zalloc (abfd, amt);
3003 sec->used_by_bfd = sdata;
3006 return _bfd_elf_new_section_hook (abfd, sec);
3009 static struct _opd_sec_data *
3010 get_opd_info (asection * sec)
3013 && ppc64_elf_section_data (sec) != NULL
3014 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
3015 return &ppc64_elf_section_data (sec)->u.opd;
3019 /* Parameters for the qsort hook. */
3020 static bfd_boolean synthetic_relocatable;
3022 /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
3025 compare_symbols (const void *ap, const void *bp)
3027 const asymbol *a = * (const asymbol **) ap;
3028 const asymbol *b = * (const asymbol **) bp;
3030 /* Section symbols first. */
3031 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
3033 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
3036 /* then .opd symbols. */
3037 if (strcmp (a->section->name, ".opd") == 0
3038 && strcmp (b->section->name, ".opd") != 0)
3040 if (strcmp (a->section->name, ".opd") != 0
3041 && strcmp (b->section->name, ".opd") == 0)
3044 /* then other code symbols. */
3045 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3046 == (SEC_CODE | SEC_ALLOC)
3047 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3048 != (SEC_CODE | SEC_ALLOC))
3051 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3052 != (SEC_CODE | SEC_ALLOC)
3053 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3054 == (SEC_CODE | SEC_ALLOC))
3057 if (synthetic_relocatable)
3059 if (a->section->id < b->section->id)
3062 if (a->section->id > b->section->id)
3066 if (a->value + a->section->vma < b->value + b->section->vma)
3069 if (a->value + a->section->vma > b->value + b->section->vma)
3072 /* For syms with the same value, prefer strong dynamic global function
3073 syms over other syms. */
3074 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
3077 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
3080 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
3083 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
3086 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
3089 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
3092 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
3095 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
3101 /* Search SYMS for a symbol of the given VALUE. */
3104 sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
3112 mid = (lo + hi) >> 1;
3113 if (syms[mid]->value + syms[mid]->section->vma < value)
3115 else if (syms[mid]->value + syms[mid]->section->vma > value)
3125 mid = (lo + hi) >> 1;
3126 if (syms[mid]->section->id < id)
3128 else if (syms[mid]->section->id > id)
3130 else if (syms[mid]->value < value)
3132 else if (syms[mid]->value > value)
3142 section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
3144 bfd_vma vma = *(bfd_vma *) ptr;
3145 return ((section->flags & SEC_ALLOC) != 0
3146 && section->vma <= vma
3147 && vma < section->vma + section->size);
3150 /* Create synthetic symbols, effectively restoring "dot-symbol" function
3151 entry syms. Also generate @plt symbols for the glink branch table.
3152 Returns count of synthetic symbols in RET or -1 on error. */
3155 ppc64_elf_get_synthetic_symtab (bfd *abfd,
3156 long static_count, asymbol **static_syms,
3157 long dyn_count, asymbol **dyn_syms,
3164 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
3165 asection *opd = NULL;
3166 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
3168 int abi = abiversion (abfd);
3174 opd = bfd_get_section_by_name (abfd, ".opd");
3175 if (opd == NULL && abi == 1)
3179 symcount = static_count;
3181 symcount += dyn_count;
3185 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
3189 if (!relocatable && static_count != 0 && dyn_count != 0)
3191 /* Use both symbol tables. */
3192 memcpy (syms, static_syms, static_count * sizeof (*syms));
3193 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
3195 else if (!relocatable && static_count == 0)
3196 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
3198 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
3200 synthetic_relocatable = relocatable;
3201 qsort (syms, symcount, sizeof (*syms), compare_symbols);
3203 if (!relocatable && symcount > 1)
3206 /* Trim duplicate syms, since we may have merged the normal and
3207 dynamic symbols. Actually, we only care about syms that have
3208 different values, so trim any with the same value. */
3209 for (i = 1, j = 1; i < symcount; ++i)
3210 if (syms[i - 1]->value + syms[i - 1]->section->vma
3211 != syms[i]->value + syms[i]->section->vma)
3212 syms[j++] = syms[i];
3217 if (strcmp (syms[i]->section->name, ".opd") == 0)
3221 for (; i < symcount; ++i)
3222 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3223 != (SEC_CODE | SEC_ALLOC))
3224 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
3228 for (; i < symcount; ++i)
3229 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
3233 for (; i < symcount; ++i)
3234 if (strcmp (syms[i]->section->name, ".opd") != 0)
3238 for (; i < symcount; ++i)
3239 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3240 != (SEC_CODE | SEC_ALLOC))
3248 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3253 if (opdsymend == secsymend)
3256 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3257 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
3261 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
3268 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
3272 while (r < opd->relocation + relcount
3273 && r->address < syms[i]->value + opd->vma)
3276 if (r == opd->relocation + relcount)
3279 if (r->address != syms[i]->value + opd->vma)
3282 if (r->howto->type != R_PPC64_ADDR64)
3285 sym = *r->sym_ptr_ptr;
3286 if (!sym_exists_at (syms, opdsymend, symcount,
3287 sym->section->id, sym->value + r->addend))
3290 size += sizeof (asymbol);
3291 size += strlen (syms[i]->name) + 2;
3297 s = *ret = bfd_malloc (size);
3304 names = (char *) (s + count);
3306 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
3310 while (r < opd->relocation + relcount
3311 && r->address < syms[i]->value + opd->vma)
3314 if (r == opd->relocation + relcount)
3317 if (r->address != syms[i]->value + opd->vma)
3320 if (r->howto->type != R_PPC64_ADDR64)
3323 sym = *r->sym_ptr_ptr;
3324 if (!sym_exists_at (syms, opdsymend, symcount,
3325 sym->section->id, sym->value + r->addend))
3330 s->flags |= BSF_SYNTHETIC;
3331 s->section = sym->section;
3332 s->value = sym->value + r->addend;
3335 len = strlen (syms[i]->name);
3336 memcpy (names, syms[i]->name, len + 1);
3338 /* Have udata.p point back to the original symbol this
3339 synthetic symbol was derived from. */
3340 s->udata.p = syms[i];
3347 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3348 bfd_byte *contents = NULL;
3351 bfd_vma glink_vma = 0, resolv_vma = 0;
3352 asection *dynamic, *glink = NULL, *relplt = NULL;
3355 if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents))
3357 free_contents_and_exit_err:
3359 free_contents_and_exit:
3366 for (i = secsymend; i < opdsymend; ++i)
3370 /* Ignore bogus symbols. */
3371 if (syms[i]->value > opd->size - 8)
3374 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3375 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3378 size += sizeof (asymbol);
3379 size += strlen (syms[i]->name) + 2;
3383 /* Get start of .glink stubs from DT_PPC64_GLINK. */
3385 && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL)
3387 bfd_byte *dynbuf, *extdyn, *extdynend;
3389 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
3391 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
3392 goto free_contents_and_exit_err;
3394 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
3395 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
3398 extdynend = extdyn + dynamic->size;
3399 for (; extdyn < extdynend; extdyn += extdynsize)
3401 Elf_Internal_Dyn dyn;
3402 (*swap_dyn_in) (abfd, extdyn, &dyn);
3404 if (dyn.d_tag == DT_NULL)
3407 if (dyn.d_tag == DT_PPC64_GLINK)
3409 /* The first glink stub starts at offset 32; see
3410 comment in ppc64_elf_finish_dynamic_sections. */
3411 glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4;
3412 /* The .glink section usually does not survive the final
3413 link; search for the section (usually .text) where the
3414 glink stubs now reside. */
3415 glink = bfd_sections_find_if (abfd, section_covers_vma,
3426 /* Determine __glink trampoline by reading the relative branch
3427 from the first glink stub. */
3429 unsigned int off = 0;
3431 while (bfd_get_section_contents (abfd, glink, buf,
3432 glink_vma + off - glink->vma, 4))
3434 unsigned int insn = bfd_get_32 (abfd, buf);
3436 if ((insn & ~0x3fffffc) == 0)
3438 resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000;
3447 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3449 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
3452 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3453 if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE))
3454 goto free_contents_and_exit_err;
3456 plt_count = relplt->size / sizeof (Elf64_External_Rela);
3457 size += plt_count * sizeof (asymbol);
3459 p = relplt->relocation;
3460 for (i = 0; i < plt_count; i++, p++)
3462 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3464 size += sizeof ("+0x") - 1 + 16;
3470 goto free_contents_and_exit;
3471 s = *ret = bfd_malloc (size);
3473 goto free_contents_and_exit_err;
3475 names = (char *) (s + count + plt_count + (resolv_vma != 0));
3477 for (i = secsymend; i < opdsymend; ++i)
3481 if (syms[i]->value > opd->size - 8)
3484 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3485 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3489 asection *sec = abfd->sections;
3496 long mid = (lo + hi) >> 1;
3497 if (syms[mid]->section->vma < ent)
3499 else if (syms[mid]->section->vma > ent)
3503 sec = syms[mid]->section;
3508 if (lo >= hi && lo > codesecsym)
3509 sec = syms[lo - 1]->section;
3511 for (; sec != NULL; sec = sec->next)
3515 /* SEC_LOAD may not be set if SEC is from a separate debug
3517 if ((sec->flags & SEC_ALLOC) == 0)
3519 if ((sec->flags & SEC_CODE) != 0)
3522 s->flags |= BSF_SYNTHETIC;
3523 s->value = ent - s->section->vma;
3526 len = strlen (syms[i]->name);
3527 memcpy (names, syms[i]->name, len + 1);
3529 /* Have udata.p point back to the original symbol this
3530 synthetic symbol was derived from. */
3531 s->udata.p = syms[i];
3537 if (glink != NULL && relplt != NULL)
3541 /* Add a symbol for the main glink trampoline. */
3542 memset (s, 0, sizeof *s);
3544 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
3546 s->value = resolv_vma - glink->vma;
3548 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3549 names += sizeof ("__glink_PLTresolve");
3554 /* FIXME: It would be very much nicer to put sym@plt on the
3555 stub rather than on the glink branch table entry. The
3556 objdump disassembler would then use a sensible symbol
3557 name on plt calls. The difficulty in doing so is
3558 a) finding the stubs, and,
3559 b) matching stubs against plt entries, and,
3560 c) there can be multiple stubs for a given plt entry.
3562 Solving (a) could be done by code scanning, but older
3563 ppc64 binaries used different stubs to current code.
3564 (b) is the tricky one since you need to known the toc
3565 pointer for at least one function that uses a pic stub to
3566 be able to calculate the plt address referenced.
3567 (c) means gdb would need to set multiple breakpoints (or
3568 find the glink branch itself) when setting breakpoints
3569 for pending shared library loads. */
3570 p = relplt->relocation;
3571 for (i = 0; i < plt_count; i++, p++)
3575 *s = **p->sym_ptr_ptr;
3576 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3577 we are defining a symbol, ensure one of them is set. */
3578 if ((s->flags & BSF_LOCAL) == 0)
3579 s->flags |= BSF_GLOBAL;
3580 s->flags |= BSF_SYNTHETIC;
3582 s->value = glink_vma - glink->vma;
3585 len = strlen ((*p->sym_ptr_ptr)->name);
3586 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3590 memcpy (names, "+0x", sizeof ("+0x") - 1);
3591 names += sizeof ("+0x") - 1;
3592 bfd_sprintf_vma (abfd, names, p->addend);
3593 names += strlen (names);
3595 memcpy (names, "@plt", sizeof ("@plt"));
3596 names += sizeof ("@plt");
3616 /* The following functions are specific to the ELF linker, while
3617 functions above are used generally. Those named ppc64_elf_* are
3618 called by the main ELF linker code. They appear in this file more
3619 or less in the order in which they are called. eg.
3620 ppc64_elf_check_relocs is called early in the link process,
3621 ppc64_elf_finish_dynamic_sections is one of the last functions
3624 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3625 functions have both a function code symbol and a function descriptor
3626 symbol. A call to foo in a relocatable object file looks like:
3633 The function definition in another object file might be:
3637 . .quad .TOC.@tocbase
3643 When the linker resolves the call during a static link, the branch
3644 unsurprisingly just goes to .foo and the .opd information is unused.
3645 If the function definition is in a shared library, things are a little
3646 different: The call goes via a plt call stub, the opd information gets
3647 copied to the plt, and the linker patches the nop.
3655 . std 2,40(1) # in practice, the call stub
3656 . addis 11,2,Lfoo@toc@ha # is slightly optimized, but
3657 . addi 11,11,Lfoo@toc@l # this is the general idea
3665 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3667 The "reloc ()" notation is supposed to indicate that the linker emits
3668 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3671 What are the difficulties here? Well, firstly, the relocations
3672 examined by the linker in check_relocs are against the function code
3673 sym .foo, while the dynamic relocation in the plt is emitted against
3674 the function descriptor symbol, foo. Somewhere along the line, we need
3675 to carefully copy dynamic link information from one symbol to the other.
3676 Secondly, the generic part of the elf linker will make .foo a dynamic
3677 symbol as is normal for most other backends. We need foo dynamic
3678 instead, at least for an application final link. However, when
3679 creating a shared library containing foo, we need to have both symbols
3680 dynamic so that references to .foo are satisfied during the early
3681 stages of linking. Otherwise the linker might decide to pull in a
3682 definition from some other object, eg. a static library.
3684 Update: As of August 2004, we support a new convention. Function
3685 calls may use the function descriptor symbol, ie. "bl foo". This
3686 behaves exactly as "bl .foo". */
3688 /* Of those relocs that might be copied as dynamic relocs, this function
3689 selects those that must be copied when linking a shared library,
3690 even when the symbol is local. */
3693 must_be_dyn_reloc (struct bfd_link_info *info,
3694 enum elf_ppc64_reloc_type r_type)
3706 case R_PPC64_TPREL16:
3707 case R_PPC64_TPREL16_LO:
3708 case R_PPC64_TPREL16_HI:
3709 case R_PPC64_TPREL16_HA:
3710 case R_PPC64_TPREL16_DS:
3711 case R_PPC64_TPREL16_LO_DS:
3712 case R_PPC64_TPREL16_HIGH:
3713 case R_PPC64_TPREL16_HIGHA:
3714 case R_PPC64_TPREL16_HIGHER:
3715 case R_PPC64_TPREL16_HIGHERA:
3716 case R_PPC64_TPREL16_HIGHEST:
3717 case R_PPC64_TPREL16_HIGHESTA:
3718 case R_PPC64_TPREL64:
3719 return !info->executable;
3723 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3724 copying dynamic variables from a shared lib into an app's dynbss
3725 section, and instead use a dynamic relocation to point into the
3726 shared lib. With code that gcc generates, it's vital that this be
3727 enabled; In the PowerPC64 ABI, the address of a function is actually
3728 the address of a function descriptor, which resides in the .opd
3729 section. gcc uses the descriptor directly rather than going via the
3730 GOT as some other ABI's do, which means that initialized function
3731 pointers must reference the descriptor. Thus, a function pointer
3732 initialized to the address of a function in a shared library will
3733 either require a copy reloc, or a dynamic reloc. Using a copy reloc
3734 redefines the function descriptor symbol to point to the copy. This
3735 presents a problem as a plt entry for that function is also
3736 initialized from the function descriptor symbol and the copy reloc
3737 may not be initialized first. */
3738 #define ELIMINATE_COPY_RELOCS 1
3740 /* Section name for stubs is the associated section name plus this
3742 #define STUB_SUFFIX ".stub"
3745 ppc_stub_long_branch:
3746 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3747 destination, but a 24 bit branch in a stub section will reach.
3750 ppc_stub_plt_branch:
3751 Similar to the above, but a 24 bit branch in the stub section won't
3752 reach its destination.
3753 . addis %r11,%r2,xxx@toc@ha
3754 . ld %r12,xxx@toc@l(%r11)
3759 Used to call a function in a shared library. If it so happens that
3760 the plt entry referenced crosses a 64k boundary, then an extra
3761 "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr".
3763 . addis %r11,%r2,xxx@toc@ha
3764 . ld %r12,xxx+0@toc@l(%r11)
3766 . ld %r2,xxx+8@toc@l(%r11)
3767 . ld %r11,xxx+16@toc@l(%r11)
3770 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3771 code to adjust the value and save r2 to support multiple toc sections.
3772 A ppc_stub_long_branch with an r2 offset looks like:
3774 . addis %r2,%r2,off@ha
3775 . addi %r2,%r2,off@l
3778 A ppc_stub_plt_branch with an r2 offset looks like:
3780 . addis %r11,%r2,xxx@toc@ha
3781 . ld %r12,xxx@toc@l(%r11)
3782 . addis %r2,%r2,off@ha
3783 . addi %r2,%r2,off@l
3787 In cases where the "addis" instruction would add zero, the "addis" is
3788 omitted and following instructions modified slightly in some cases.
3791 enum ppc_stub_type {
3793 ppc_stub_long_branch,
3794 ppc_stub_long_branch_r2off,
3795 ppc_stub_plt_branch,
3796 ppc_stub_plt_branch_r2off,
3798 ppc_stub_plt_call_r2save,
3799 ppc_stub_global_entry
3802 struct ppc_stub_hash_entry {
3804 /* Base hash table entry structure. */
3805 struct bfd_hash_entry root;
3807 enum ppc_stub_type stub_type;
3809 /* The stub section. */
3812 /* Offset within stub_sec of the beginning of this stub. */
3813 bfd_vma stub_offset;
3815 /* Given the symbol's value and its section we can determine its final
3816 value when building the stubs (so the stub knows where to jump. */
3817 bfd_vma target_value;
3818 asection *target_section;
3820 /* The symbol table entry, if any, that this was derived from. */
3821 struct ppc_link_hash_entry *h;
3822 struct plt_entry *plt_ent;
3824 /* Where this stub is being called from, or, in the case of combined
3825 stub sections, the first input section in the group. */
3828 /* Symbol st_other. */
3829 unsigned char other;
3832 struct ppc_branch_hash_entry {
3834 /* Base hash table entry structure. */
3835 struct bfd_hash_entry root;
3837 /* Offset within branch lookup table. */
3838 unsigned int offset;
3840 /* Generation marker. */
3844 /* Used to track dynamic relocations for local symbols. */
3845 struct ppc_dyn_relocs
3847 struct ppc_dyn_relocs *next;
3849 /* The input section of the reloc. */
3852 /* Total number of relocs copied for the input section. */
3853 unsigned int count : 31;
3855 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3856 unsigned int ifunc : 1;
3859 struct ppc_link_hash_entry
3861 struct elf_link_hash_entry elf;
3864 /* A pointer to the most recently used stub hash entry against this
3866 struct ppc_stub_hash_entry *stub_cache;
3868 /* A pointer to the next symbol starting with a '.' */
3869 struct ppc_link_hash_entry *next_dot_sym;
3872 /* Track dynamic relocs copied for this symbol. */
3873 struct elf_dyn_relocs *dyn_relocs;
3875 /* Link between function code and descriptor symbols. */
3876 struct ppc_link_hash_entry *oh;
3878 /* Flag function code and descriptor symbols. */
3879 unsigned int is_func:1;
3880 unsigned int is_func_descriptor:1;
3881 unsigned int fake:1;
3883 /* Whether global opd/toc sym has been adjusted or not.
3884 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3885 should be set for all globals defined in any opd/toc section. */
3886 unsigned int adjust_done:1;
3888 /* Set if we twiddled this symbol to weak at some stage. */
3889 unsigned int was_undefined:1;
3891 /* Contexts in which symbol is used in the GOT (or TOC).
3892 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3893 corresponding relocs are encountered during check_relocs.
3894 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3895 indicate the corresponding GOT entry type is not needed.
3896 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3897 a TPREL one. We use a separate flag rather than setting TPREL
3898 just for convenience in distinguishing the two cases. */
3899 #define TLS_GD 1 /* GD reloc. */
3900 #define TLS_LD 2 /* LD reloc. */
3901 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3902 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3903 #define TLS_TLS 16 /* Any TLS reloc. */
3904 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3905 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3906 #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
3907 unsigned char tls_mask;
3910 /* ppc64 ELF linker hash table. */
3912 struct ppc_link_hash_table
3914 struct elf_link_hash_table elf;
3916 /* The stub hash table. */
3917 struct bfd_hash_table stub_hash_table;
3919 /* Another hash table for plt_branch stubs. */
3920 struct bfd_hash_table branch_hash_table;
3922 /* Hash table for function prologue tocsave. */
3923 htab_t tocsave_htab;
3925 /* Various options and other info passed from the linker. */
3926 struct ppc64_elf_params *params;
3928 /* Array to keep track of which stub sections have been created, and
3929 information on stub grouping. */
3931 /* This is the section to which stubs in the group will be attached. */
3933 /* The stub section. */
3935 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3939 /* Temp used when calculating TOC pointers. */
3942 asection *toc_first_sec;
3944 /* Highest input section id. */
3947 /* Highest output section index. */
3950 /* Used when adding symbols. */
3951 struct ppc_link_hash_entry *dot_syms;
3953 /* List of input sections for each output section. */
3954 asection **input_list;
3956 /* Shortcuts to get to dynamic linker sections. */
3963 asection *glink_eh_frame;
3965 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3966 struct ppc_link_hash_entry *tls_get_addr;
3967 struct ppc_link_hash_entry *tls_get_addr_fd;
3969 /* The size of reliplt used by got entry relocs. */
3970 bfd_size_type got_reli_size;
3973 unsigned long stub_count[ppc_stub_global_entry];
3975 /* Number of stubs against global syms. */
3976 unsigned long stub_globals;
3978 /* Set if we're linking code with function descriptors. */
3979 unsigned int opd_abi:1;
3981 /* Support for multiple toc sections. */
3982 unsigned int do_multi_toc:1;
3983 unsigned int multi_toc_needed:1;
3984 unsigned int second_toc_pass:1;
3985 unsigned int do_toc_opt:1;
3988 unsigned int stub_error:1;
3990 /* Temp used by ppc64_elf_before_check_relocs. */
3991 unsigned int twiddled_syms:1;
3993 /* Incremented every time we size stubs. */
3994 unsigned int stub_iteration;
3996 /* Small local sym cache. */
3997 struct sym_cache sym_cache;
4000 /* Rename some of the generic section flags to better document how they
4003 /* Nonzero if this section has TLS related relocations. */
4004 #define has_tls_reloc sec_flg0
4006 /* Nonzero if this section has a call to __tls_get_addr. */
4007 #define has_tls_get_addr_call sec_flg1
4009 /* Nonzero if this section has any toc or got relocs. */
4010 #define has_toc_reloc sec_flg2
4012 /* Nonzero if this section has a call to another section that uses
4014 #define makes_toc_func_call sec_flg3
4016 /* Recursion protection when determining above flag. */
4017 #define call_check_in_progress sec_flg4
4018 #define call_check_done sec_flg5
4020 /* Get the ppc64 ELF linker hash table from a link_info structure. */
4022 #define ppc_hash_table(p) \
4023 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
4024 == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL)
4026 #define ppc_stub_hash_lookup(table, string, create, copy) \
4027 ((struct ppc_stub_hash_entry *) \
4028 bfd_hash_lookup ((table), (string), (create), (copy)))
4030 #define ppc_branch_hash_lookup(table, string, create, copy) \
4031 ((struct ppc_branch_hash_entry *) \
4032 bfd_hash_lookup ((table), (string), (create), (copy)))
4034 /* Create an entry in the stub hash table. */
4036 static struct bfd_hash_entry *
4037 stub_hash_newfunc (struct bfd_hash_entry *entry,
4038 struct bfd_hash_table *table,
4041 /* Allocate the structure if it has not already been allocated by a
4045 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
4050 /* Call the allocation method of the superclass. */
4051 entry = bfd_hash_newfunc (entry, table, string);
4054 struct ppc_stub_hash_entry *eh;
4056 /* Initialize the local fields. */
4057 eh = (struct ppc_stub_hash_entry *) entry;
4058 eh->stub_type = ppc_stub_none;
4059 eh->stub_sec = NULL;
4060 eh->stub_offset = 0;
4061 eh->target_value = 0;
4062 eh->target_section = NULL;
4072 /* Create an entry in the branch hash table. */
4074 static struct bfd_hash_entry *
4075 branch_hash_newfunc (struct bfd_hash_entry *entry,
4076 struct bfd_hash_table *table,
4079 /* Allocate the structure if it has not already been allocated by a
4083 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
4088 /* Call the allocation method of the superclass. */
4089 entry = bfd_hash_newfunc (entry, table, string);
4092 struct ppc_branch_hash_entry *eh;
4094 /* Initialize the local fields. */
4095 eh = (struct ppc_branch_hash_entry *) entry;
4103 /* Create an entry in a ppc64 ELF linker hash table. */
4105 static struct bfd_hash_entry *
4106 link_hash_newfunc (struct bfd_hash_entry *entry,
4107 struct bfd_hash_table *table,
4110 /* Allocate the structure if it has not already been allocated by a
4114 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
4119 /* Call the allocation method of the superclass. */
4120 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
4123 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
4125 memset (&eh->u.stub_cache, 0,
4126 (sizeof (struct ppc_link_hash_entry)
4127 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
4129 /* When making function calls, old ABI code references function entry
4130 points (dot symbols), while new ABI code references the function
4131 descriptor symbol. We need to make any combination of reference and
4132 definition work together, without breaking archive linking.
4134 For a defined function "foo" and an undefined call to "bar":
4135 An old object defines "foo" and ".foo", references ".bar" (possibly
4137 A new object defines "foo" and references "bar".
4139 A new object thus has no problem with its undefined symbols being
4140 satisfied by definitions in an old object. On the other hand, the
4141 old object won't have ".bar" satisfied by a new object.
4143 Keep a list of newly added dot-symbols. */
4145 if (string[0] == '.')
4147 struct ppc_link_hash_table *htab;
4149 htab = (struct ppc_link_hash_table *) table;
4150 eh->u.next_dot_sym = htab->dot_syms;
4151 htab->dot_syms = eh;
4158 struct tocsave_entry {
4164 tocsave_htab_hash (const void *p)
4166 const struct tocsave_entry *e = (const struct tocsave_entry *) p;
4167 return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3;
4171 tocsave_htab_eq (const void *p1, const void *p2)
4173 const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1;
4174 const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2;
4175 return e1->sec == e2->sec && e1->offset == e2->offset;
4178 /* Destroy a ppc64 ELF linker hash table. */
4181 ppc64_elf_link_hash_table_free (bfd *obfd)
4183 struct ppc_link_hash_table *htab;
4185 htab = (struct ppc_link_hash_table *) obfd->link.hash;
4186 if (htab->tocsave_htab)
4187 htab_delete (htab->tocsave_htab);
4188 bfd_hash_table_free (&htab->branch_hash_table);
4189 bfd_hash_table_free (&htab->stub_hash_table);
4190 _bfd_elf_link_hash_table_free (obfd);
4193 /* Create a ppc64 ELF linker hash table. */
4195 static struct bfd_link_hash_table *
4196 ppc64_elf_link_hash_table_create (bfd *abfd)
4198 struct ppc_link_hash_table *htab;
4199 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
4201 htab = bfd_zmalloc (amt);
4205 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
4206 sizeof (struct ppc_link_hash_entry),
4213 /* Init the stub hash table too. */
4214 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
4215 sizeof (struct ppc_stub_hash_entry)))
4217 _bfd_elf_link_hash_table_free (abfd);
4221 /* And the branch hash table. */
4222 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
4223 sizeof (struct ppc_branch_hash_entry)))
4225 bfd_hash_table_free (&htab->stub_hash_table);
4226 _bfd_elf_link_hash_table_free (abfd);
4230 htab->tocsave_htab = htab_try_create (1024,
4234 if (htab->tocsave_htab == NULL)
4236 ppc64_elf_link_hash_table_free (abfd);
4239 htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free;
4241 /* Initializing two fields of the union is just cosmetic. We really
4242 only care about glist, but when compiled on a 32-bit host the
4243 bfd_vma fields are larger. Setting the bfd_vma to zero makes
4244 debugger inspection of these fields look nicer. */
4245 htab->elf.init_got_refcount.refcount = 0;
4246 htab->elf.init_got_refcount.glist = NULL;
4247 htab->elf.init_plt_refcount.refcount = 0;
4248 htab->elf.init_plt_refcount.glist = NULL;
4249 htab->elf.init_got_offset.offset = 0;
4250 htab->elf.init_got_offset.glist = NULL;
4251 htab->elf.init_plt_offset.offset = 0;
4252 htab->elf.init_plt_offset.glist = NULL;
4254 return &htab->elf.root;
4257 /* Create sections for linker generated code. */
4260 create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
4262 struct ppc_link_hash_table *htab;
4265 htab = ppc_hash_table (info);
4267 /* Create .sfpr for code to save and restore fp regs. */
4268 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
4269 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4270 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
4272 if (htab->sfpr == NULL
4273 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
4276 /* Create .glink for lazy dynamic linking support. */
4277 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
4279 if (htab->glink == NULL
4280 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
4283 if (!info->no_ld_generated_unwind_info)
4285 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
4286 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4287 htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj,
4290 if (htab->glink_eh_frame == NULL
4291 || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2))
4295 flags = SEC_ALLOC | SEC_LINKER_CREATED;
4296 htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
4297 if (htab->elf.iplt == NULL
4298 || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3))
4301 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4302 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4304 = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags);
4305 if (htab->elf.irelplt == NULL
4306 || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3))
4309 /* Create branch lookup table for plt_branch stubs. */
4310 flags = (SEC_ALLOC | SEC_LOAD
4311 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4312 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
4314 if (htab->brlt == NULL
4315 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
4321 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4322 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4323 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
4326 if (htab->relbrlt == NULL
4327 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
4333 /* Satisfy the ELF linker by filling in some fields in our fake bfd. */
4336 ppc64_elf_init_stub_bfd (struct bfd_link_info *info,
4337 struct ppc64_elf_params *params)
4339 struct ppc_link_hash_table *htab;
4341 elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64;
4343 /* Always hook our dynamic sections into the first bfd, which is the
4344 linker created stub bfd. This ensures that the GOT header is at
4345 the start of the output TOC section. */
4346 htab = ppc_hash_table (info);
4349 htab->elf.dynobj = params->stub_bfd;
4350 htab->params = params;
4352 if (info->relocatable)
4355 return create_linkage_sections (htab->elf.dynobj, info);
4358 /* Build a name for an entry in the stub hash table. */
4361 ppc_stub_name (const asection *input_section,
4362 const asection *sym_sec,
4363 const struct ppc_link_hash_entry *h,
4364 const Elf_Internal_Rela *rel)
4369 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
4370 offsets from a sym as a branch target? In fact, we could
4371 probably assume the addend is always zero. */
4372 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
4376 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
4377 stub_name = bfd_malloc (len);
4378 if (stub_name == NULL)
4381 len = sprintf (stub_name, "%08x.%s+%x",
4382 input_section->id & 0xffffffff,
4383 h->elf.root.root.string,
4384 (int) rel->r_addend & 0xffffffff);
4388 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
4389 stub_name = bfd_malloc (len);
4390 if (stub_name == NULL)
4393 len = sprintf (stub_name, "%08x.%x:%x+%x",
4394 input_section->id & 0xffffffff,
4395 sym_sec->id & 0xffffffff,
4396 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
4397 (int) rel->r_addend & 0xffffffff);
4399 if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
4400 stub_name[len - 2] = 0;
4404 /* Look up an entry in the stub hash. Stub entries are cached because
4405 creating the stub name takes a bit of time. */
4407 static struct ppc_stub_hash_entry *
4408 ppc_get_stub_entry (const asection *input_section,
4409 const asection *sym_sec,
4410 struct ppc_link_hash_entry *h,
4411 const Elf_Internal_Rela *rel,
4412 struct ppc_link_hash_table *htab)
4414 struct ppc_stub_hash_entry *stub_entry;
4415 const asection *id_sec;
4417 /* If this input section is part of a group of sections sharing one
4418 stub section, then use the id of the first section in the group.
4419 Stub names need to include a section id, as there may well be
4420 more than one stub used to reach say, printf, and we need to
4421 distinguish between them. */
4422 id_sec = htab->stub_group[input_section->id].link_sec;
4424 if (h != NULL && h->u.stub_cache != NULL
4425 && h->u.stub_cache->h == h
4426 && h->u.stub_cache->id_sec == id_sec)
4428 stub_entry = h->u.stub_cache;
4434 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
4435 if (stub_name == NULL)
4438 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
4439 stub_name, FALSE, FALSE);
4441 h->u.stub_cache = stub_entry;
4449 /* Add a new stub entry to the stub hash. Not all fields of the new
4450 stub entry are initialised. */
4452 static struct ppc_stub_hash_entry *
4453 ppc_add_stub (const char *stub_name,
4455 struct bfd_link_info *info)
4457 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4460 struct ppc_stub_hash_entry *stub_entry;
4462 link_sec = htab->stub_group[section->id].link_sec;
4463 stub_sec = htab->stub_group[section->id].stub_sec;
4464 if (stub_sec == NULL)
4466 stub_sec = htab->stub_group[link_sec->id].stub_sec;
4467 if (stub_sec == NULL)
4473 namelen = strlen (link_sec->name);
4474 len = namelen + sizeof (STUB_SUFFIX);
4475 s_name = bfd_alloc (htab->params->stub_bfd, len);
4479 memcpy (s_name, link_sec->name, namelen);
4480 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
4481 stub_sec = (*htab->params->add_stub_section) (s_name, link_sec);
4482 if (stub_sec == NULL)
4484 htab->stub_group[link_sec->id].stub_sec = stub_sec;
4486 htab->stub_group[section->id].stub_sec = stub_sec;
4489 /* Enter this entry into the linker stub hash table. */
4490 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
4492 if (stub_entry == NULL)
4494 info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"),
4495 section->owner, stub_name);
4499 stub_entry->stub_sec = stub_sec;
4500 stub_entry->stub_offset = 0;
4501 stub_entry->id_sec = link_sec;
4505 /* Create .got and .rela.got sections in ABFD, and .got in dynobj if
4506 not already done. */
4509 create_got_section (bfd *abfd, struct bfd_link_info *info)
4511 asection *got, *relgot;
4513 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4515 if (!is_ppc64_elf (abfd))
4521 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
4524 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4525 | SEC_LINKER_CREATED);
4527 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4529 || !bfd_set_section_alignment (abfd, got, 3))
4532 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
4533 flags | SEC_READONLY);
4535 || ! bfd_set_section_alignment (abfd, relgot, 3))
4538 ppc64_elf_tdata (abfd)->got = got;
4539 ppc64_elf_tdata (abfd)->relgot = relgot;
4543 /* Create the dynamic sections, and set up shortcuts. */
4546 ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
4548 struct ppc_link_hash_table *htab;
4550 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
4553 htab = ppc_hash_table (info);
4557 htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss");
4559 htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss");
4561 if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss
4562 || (!info->shared && !htab->relbss))
4568 /* Follow indirect and warning symbol links. */
4570 static inline struct bfd_link_hash_entry *
4571 follow_link (struct bfd_link_hash_entry *h)
4573 while (h->type == bfd_link_hash_indirect
4574 || h->type == bfd_link_hash_warning)
4579 static inline struct elf_link_hash_entry *
4580 elf_follow_link (struct elf_link_hash_entry *h)
4582 return (struct elf_link_hash_entry *) follow_link (&h->root);
4585 static inline struct ppc_link_hash_entry *
4586 ppc_follow_link (struct ppc_link_hash_entry *h)
4588 return (struct ppc_link_hash_entry *) follow_link (&h->elf.root);
4591 /* Merge PLT info on FROM with that on TO. */
4594 move_plt_plist (struct ppc_link_hash_entry *from,
4595 struct ppc_link_hash_entry *to)
4597 if (from->elf.plt.plist != NULL)
4599 if (to->elf.plt.plist != NULL)
4601 struct plt_entry **entp;
4602 struct plt_entry *ent;
4604 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
4606 struct plt_entry *dent;
4608 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
4609 if (dent->addend == ent->addend)
4611 dent->plt.refcount += ent->plt.refcount;
4618 *entp = to->elf.plt.plist;
4621 to->elf.plt.plist = from->elf.plt.plist;
4622 from->elf.plt.plist = NULL;
4626 /* Copy the extra info we tack onto an elf_link_hash_entry. */
4629 ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
4630 struct elf_link_hash_entry *dir,
4631 struct elf_link_hash_entry *ind)
4633 struct ppc_link_hash_entry *edir, *eind;
4635 edir = (struct ppc_link_hash_entry *) dir;
4636 eind = (struct ppc_link_hash_entry *) ind;
4638 edir->is_func |= eind->is_func;
4639 edir->is_func_descriptor |= eind->is_func_descriptor;
4640 edir->tls_mask |= eind->tls_mask;
4641 if (eind->oh != NULL)
4642 edir->oh = ppc_follow_link (eind->oh);
4644 /* If called to transfer flags for a weakdef during processing
4645 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4646 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4647 if (!(ELIMINATE_COPY_RELOCS
4648 && eind->elf.root.type != bfd_link_hash_indirect
4649 && edir->elf.dynamic_adjusted))
4650 edir->elf.non_got_ref |= eind->elf.non_got_ref;
4652 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4653 edir->elf.ref_regular |= eind->elf.ref_regular;
4654 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4655 edir->elf.needs_plt |= eind->elf.needs_plt;
4656 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
4658 /* Copy over any dynamic relocs we may have on the indirect sym. */
4659 if (eind->dyn_relocs != NULL)
4661 if (edir->dyn_relocs != NULL)
4663 struct elf_dyn_relocs **pp;
4664 struct elf_dyn_relocs *p;
4666 /* Add reloc counts against the indirect sym to the direct sym
4667 list. Merge any entries against the same section. */
4668 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
4670 struct elf_dyn_relocs *q;
4672 for (q = edir->dyn_relocs; q != NULL; q = q->next)
4673 if (q->sec == p->sec)
4675 q->pc_count += p->pc_count;
4676 q->count += p->count;
4683 *pp = edir->dyn_relocs;
4686 edir->dyn_relocs = eind->dyn_relocs;
4687 eind->dyn_relocs = NULL;
4690 /* If we were called to copy over info for a weak sym, that's all.
4691 You might think dyn_relocs need not be copied over; After all,
4692 both syms will be dynamic or both non-dynamic so we're just
4693 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
4694 code in ppc64_elf_adjust_dynamic_symbol needs to check for
4695 dyn_relocs in read-only sections, and it does so on what is the
4697 if (eind->elf.root.type != bfd_link_hash_indirect)
4700 /* Copy over got entries that we may have already seen to the
4701 symbol which just became indirect. */
4702 if (eind->elf.got.glist != NULL)
4704 if (edir->elf.got.glist != NULL)
4706 struct got_entry **entp;
4707 struct got_entry *ent;
4709 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4711 struct got_entry *dent;
4713 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4714 if (dent->addend == ent->addend
4715 && dent->owner == ent->owner
4716 && dent->tls_type == ent->tls_type)
4718 dent->got.refcount += ent->got.refcount;
4725 *entp = edir->elf.got.glist;
4728 edir->elf.got.glist = eind->elf.got.glist;
4729 eind->elf.got.glist = NULL;
4732 /* And plt entries. */
4733 move_plt_plist (eind, edir);
4735 if (eind->elf.dynindx != -1)
4737 if (edir->elf.dynindx != -1)
4738 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4739 edir->elf.dynstr_index);
4740 edir->elf.dynindx = eind->elf.dynindx;
4741 edir->elf.dynstr_index = eind->elf.dynstr_index;
4742 eind->elf.dynindx = -1;
4743 eind->elf.dynstr_index = 0;
4747 /* Find the function descriptor hash entry from the given function code
4748 hash entry FH. Link the entries via their OH fields. */
4750 static struct ppc_link_hash_entry *
4751 lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
4753 struct ppc_link_hash_entry *fdh = fh->oh;
4757 const char *fd_name = fh->elf.root.root.string + 1;
4759 fdh = (struct ppc_link_hash_entry *)
4760 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
4764 fdh->is_func_descriptor = 1;
4770 return ppc_follow_link (fdh);
4773 /* Make a fake function descriptor sym for the code sym FH. */
4775 static struct ppc_link_hash_entry *
4776 make_fdh (struct bfd_link_info *info,
4777 struct ppc_link_hash_entry *fh)
4781 struct bfd_link_hash_entry *bh;
4782 struct ppc_link_hash_entry *fdh;
4784 abfd = fh->elf.root.u.undef.abfd;
4785 newsym = bfd_make_empty_symbol (abfd);
4786 newsym->name = fh->elf.root.root.string + 1;
4787 newsym->section = bfd_und_section_ptr;
4789 newsym->flags = BSF_WEAK;
4792 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4793 newsym->flags, newsym->section,
4794 newsym->value, NULL, FALSE, FALSE,
4798 fdh = (struct ppc_link_hash_entry *) bh;
4799 fdh->elf.non_elf = 0;
4801 fdh->is_func_descriptor = 1;
4808 /* Fix function descriptor symbols defined in .opd sections to be
4812 ppc64_elf_add_symbol_hook (bfd *ibfd,
4813 struct bfd_link_info *info,
4814 Elf_Internal_Sym *isym,
4816 flagword *flags ATTRIBUTE_UNUSED,
4820 if ((ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
4821 || ELF_ST_BIND (isym->st_info) == STB_GNU_UNIQUE)
4822 && (ibfd->flags & DYNAMIC) == 0
4823 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
4824 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
4827 && strcmp ((*sec)->name, ".opd") == 0)
4831 if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
4832 || ELF_ST_TYPE (isym->st_info) == STT_FUNC))
4833 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
4835 /* If the symbol is a function defined in .opd, and the function
4836 code is in a discarded group, let it appear to be undefined. */
4837 if (!info->relocatable
4838 && (*sec)->reloc_count != 0
4839 && opd_entry_value (*sec, *value, &code_sec, NULL,
4840 FALSE) != (bfd_vma) -1
4841 && discarded_section (code_sec))
4843 *sec = bfd_und_section_ptr;
4844 isym->st_shndx = SHN_UNDEF;
4847 else if (*sec != NULL
4848 && strcmp ((*sec)->name, ".toc") == 0
4849 && ELF_ST_TYPE (isym->st_info) == STT_OBJECT)
4851 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4853 htab->params->object_in_toc = 1;
4856 if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0)
4858 if (abiversion (ibfd) == 0)
4859 set_abiversion (ibfd, 2);
4860 else if (abiversion (ibfd) == 1)
4862 info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other"
4863 " for ABI version 1\n"), name);
4864 bfd_set_error (bfd_error_bad_value);
4872 /* Merge non-visibility st_other attributes: local entry point. */
4875 ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h,
4876 const Elf_Internal_Sym *isym,
4877 bfd_boolean definition,
4878 bfd_boolean dynamic)
4880 if (definition && !dynamic)
4881 h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1))
4882 | ELF_ST_VISIBILITY (h->other));
4885 /* This function makes an old ABI object reference to ".bar" cause the
4886 inclusion of a new ABI object archive that defines "bar".
4887 NAME is a symbol defined in an archive. Return a symbol in the hash
4888 table that might be satisfied by the archive symbols. */
4890 static struct elf_link_hash_entry *
4891 ppc64_elf_archive_symbol_lookup (bfd *abfd,
4892 struct bfd_link_info *info,
4895 struct elf_link_hash_entry *h;
4899 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
4901 /* Don't return this sym if it is a fake function descriptor
4902 created by add_symbol_adjust. */
4903 && !(h->root.type == bfd_link_hash_undefweak
4904 && ((struct ppc_link_hash_entry *) h)->fake))
4910 len = strlen (name);
4911 dot_name = bfd_alloc (abfd, len + 2);
4912 if (dot_name == NULL)
4913 return (struct elf_link_hash_entry *) 0 - 1;
4915 memcpy (dot_name + 1, name, len + 1);
4916 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4917 bfd_release (abfd, dot_name);
4921 /* This function satisfies all old ABI object references to ".bar" if a
4922 new ABI object defines "bar". Well, at least, undefined dot symbols
4923 are made weak. This stops later archive searches from including an
4924 object if we already have a function descriptor definition. It also
4925 prevents the linker complaining about undefined symbols.
4926 We also check and correct mismatched symbol visibility here. The
4927 most restrictive visibility of the function descriptor and the
4928 function entry symbol is used. */
4931 add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
4933 struct ppc_link_hash_table *htab;
4934 struct ppc_link_hash_entry *fdh;
4936 if (eh->elf.root.type == bfd_link_hash_indirect)
4939 if (eh->elf.root.type == bfd_link_hash_warning)
4940 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
4942 if (eh->elf.root.root.string[0] != '.')
4945 htab = ppc_hash_table (info);
4949 fdh = lookup_fdh (eh, htab);
4952 if (!info->relocatable
4953 && (eh->elf.root.type == bfd_link_hash_undefined
4954 || eh->elf.root.type == bfd_link_hash_undefweak)
4955 && eh->elf.ref_regular)
4957 /* Make an undefweak function descriptor sym, which is enough to
4958 pull in an --as-needed shared lib, but won't cause link
4959 errors. Archives are handled elsewhere. */
4960 fdh = make_fdh (info, eh);
4963 fdh->elf.ref_regular = 1;
4968 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4969 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4970 if (entry_vis < descr_vis)
4971 fdh->elf.other += entry_vis - descr_vis;
4972 else if (entry_vis > descr_vis)
4973 eh->elf.other += descr_vis - entry_vis;
4975 if ((fdh->elf.root.type == bfd_link_hash_defined
4976 || fdh->elf.root.type == bfd_link_hash_defweak)
4977 && eh->elf.root.type == bfd_link_hash_undefined)
4979 eh->elf.root.type = bfd_link_hash_undefweak;
4980 eh->was_undefined = 1;
4981 htab->twiddled_syms = 1;
4988 /* Set up opd section info and abiversion for IBFD, and process list
4989 of dot-symbols we made in link_hash_newfunc. */
4992 ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info)
4994 struct ppc_link_hash_table *htab;
4995 struct ppc_link_hash_entry **p, *eh;
4996 asection *opd = bfd_get_section_by_name (ibfd, ".opd");
4998 if (opd != NULL && opd->size != 0)
5000 if (abiversion (ibfd) == 0)
5001 set_abiversion (ibfd, 1);
5002 else if (abiversion (ibfd) == 2)
5004 info->callbacks->einfo (_("%P: %B .opd not allowed in ABI"
5006 ibfd, abiversion (ibfd));
5007 bfd_set_error (bfd_error_bad_value);
5011 if ((ibfd->flags & DYNAMIC) == 0
5012 && (opd->flags & SEC_RELOC) != 0
5013 && opd->reloc_count != 0
5014 && !bfd_is_abs_section (opd->output_section))
5016 /* Garbage collection needs some extra help with .opd sections.
5017 We don't want to necessarily keep everything referenced by
5018 relocs in .opd, as that would keep all functions. Instead,
5019 if we reference an .opd symbol (a function descriptor), we
5020 want to keep the function code symbol's section. This is
5021 easy for global symbols, but for local syms we need to keep
5022 information about the associated function section. */
5024 asection **opd_sym_map;
5026 amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map);
5027 opd_sym_map = bfd_zalloc (ibfd, amt);
5028 if (opd_sym_map == NULL)
5030 ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map;
5031 BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal);
5032 ppc64_elf_section_data (opd)->sec_type = sec_opd;
5036 if (!is_ppc64_elf (info->output_bfd))
5038 htab = ppc_hash_table (info);
5042 /* For input files without an explicit abiversion in e_flags
5043 we should have flagged any with symbol st_other bits set
5044 as ELFv1 and above flagged those with .opd as ELFv2.
5045 Set the output abiversion if not yet set, and for any input
5046 still ambiguous, take its abiversion from the output.
5047 Differences in ABI are reported later. */
5048 if (abiversion (info->output_bfd) == 0)
5049 set_abiversion (info->output_bfd, abiversion (ibfd));
5050 else if (abiversion (ibfd) == 0)
5051 set_abiversion (ibfd, abiversion (info->output_bfd));
5053 p = &htab->dot_syms;
5054 while ((eh = *p) != NULL)
5057 if (&eh->elf == htab->elf.hgot)
5059 else if (htab->elf.hgot == NULL
5060 && strcmp (eh->elf.root.root.string, ".TOC.") == 0)
5061 htab->elf.hgot = &eh->elf;
5062 else if (!add_symbol_adjust (eh, info))
5064 p = &eh->u.next_dot_sym;
5067 /* Clear the list for non-ppc64 input files. */
5068 p = &htab->dot_syms;
5069 while ((eh = *p) != NULL)
5072 p = &eh->u.next_dot_sym;
5075 /* We need to fix the undefs list for any syms we have twiddled to
5077 if (htab->twiddled_syms)
5079 bfd_link_repair_undef_list (&htab->elf.root);
5080 htab->twiddled_syms = 0;
5085 /* Undo hash table changes when an --as-needed input file is determined
5086 not to be needed. */
5089 ppc64_elf_notice_as_needed (bfd *ibfd,
5090 struct bfd_link_info *info,
5091 enum notice_asneeded_action act)
5093 if (act == notice_not_needed)
5095 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5100 htab->dot_syms = NULL;
5102 return _bfd_elf_notice_as_needed (ibfd, info, act);
5105 /* If --just-symbols against a final linked binary, then assume we need
5106 toc adjusting stubs when calling functions defined there. */
5109 ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info)
5111 if ((sec->flags & SEC_CODE) != 0
5112 && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0
5113 && is_ppc64_elf (sec->owner))
5115 if (abiversion (sec->owner) >= 2
5116 || bfd_get_section_by_name (sec->owner, ".opd") != NULL)
5117 sec->has_toc_reloc = 1;
5119 _bfd_elf_link_just_syms (sec, info);
5122 static struct plt_entry **
5123 update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
5124 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
5126 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
5127 struct plt_entry **local_plt;
5128 unsigned char *local_got_tls_masks;
5130 if (local_got_ents == NULL)
5132 bfd_size_type size = symtab_hdr->sh_info;
5134 size *= (sizeof (*local_got_ents)
5135 + sizeof (*local_plt)
5136 + sizeof (*local_got_tls_masks));
5137 local_got_ents = bfd_zalloc (abfd, size);
5138 if (local_got_ents == NULL)
5140 elf_local_got_ents (abfd) = local_got_ents;
5143 if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
5145 struct got_entry *ent;
5147 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
5148 if (ent->addend == r_addend
5149 && ent->owner == abfd
5150 && ent->tls_type == tls_type)
5154 bfd_size_type amt = sizeof (*ent);
5155 ent = bfd_alloc (abfd, amt);
5158 ent->next = local_got_ents[r_symndx];
5159 ent->addend = r_addend;
5161 ent->tls_type = tls_type;
5162 ent->is_indirect = FALSE;
5163 ent->got.refcount = 0;
5164 local_got_ents[r_symndx] = ent;
5166 ent->got.refcount += 1;
5169 local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
5170 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
5171 local_got_tls_masks[r_symndx] |= tls_type;
5173 return local_plt + r_symndx;
5177 update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend)
5179 struct plt_entry *ent;
5181 for (ent = *plist; ent != NULL; ent = ent->next)
5182 if (ent->addend == addend)
5186 bfd_size_type amt = sizeof (*ent);
5187 ent = bfd_alloc (abfd, amt);
5191 ent->addend = addend;
5192 ent->plt.refcount = 0;
5195 ent->plt.refcount += 1;
5200 is_branch_reloc (enum elf_ppc64_reloc_type r_type)
5202 return (r_type == R_PPC64_REL24
5203 || r_type == R_PPC64_REL14
5204 || r_type == R_PPC64_REL14_BRTAKEN
5205 || r_type == R_PPC64_REL14_BRNTAKEN
5206 || r_type == R_PPC64_ADDR24
5207 || r_type == R_PPC64_ADDR14
5208 || r_type == R_PPC64_ADDR14_BRTAKEN
5209 || r_type == R_PPC64_ADDR14_BRNTAKEN);
5212 /* Look through the relocs for a section during the first phase, and
5213 calculate needed space in the global offset table, procedure
5214 linkage table, and dynamic reloc sections. */
5217 ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
5218 asection *sec, const Elf_Internal_Rela *relocs)
5220 struct ppc_link_hash_table *htab;
5221 Elf_Internal_Shdr *symtab_hdr;
5222 struct elf_link_hash_entry **sym_hashes;
5223 const Elf_Internal_Rela *rel;
5224 const Elf_Internal_Rela *rel_end;
5226 asection **opd_sym_map;
5227 struct elf_link_hash_entry *tga, *dottga;
5229 if (info->relocatable)
5232 /* Don't do anything special with non-loaded, non-alloced sections.
5233 In particular, any relocs in such sections should not affect GOT
5234 and PLT reference counting (ie. we don't allow them to create GOT
5235 or PLT entries), there's no possibility or desire to optimize TLS
5236 relocs, and there's not much point in propagating relocs to shared
5237 libs that the dynamic linker won't relocate. */
5238 if ((sec->flags & SEC_ALLOC) == 0)
5241 BFD_ASSERT (is_ppc64_elf (abfd));
5243 htab = ppc_hash_table (info);
5247 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5248 FALSE, FALSE, TRUE);
5249 dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
5250 FALSE, FALSE, TRUE);
5251 symtab_hdr = &elf_symtab_hdr (abfd);
5252 sym_hashes = elf_sym_hashes (abfd);
5255 if (ppc64_elf_section_data (sec) != NULL
5256 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
5257 opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec;
5259 rel_end = relocs + sec->reloc_count;
5260 for (rel = relocs; rel < rel_end; rel++)
5262 unsigned long r_symndx;
5263 struct elf_link_hash_entry *h;
5264 enum elf_ppc64_reloc_type r_type;
5266 struct _ppc64_elf_section_data *ppc64_sec;
5267 struct plt_entry **ifunc;
5269 r_symndx = ELF64_R_SYM (rel->r_info);
5270 if (r_symndx < symtab_hdr->sh_info)
5274 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5275 h = elf_follow_link (h);
5277 /* PR15323, ref flags aren't set for references in the same
5279 h->root.non_ir_ref = 1;
5281 if (h == htab->elf.hgot)
5282 sec->has_toc_reloc = 1;
5289 if (h->type == STT_GNU_IFUNC)
5292 ifunc = &h->plt.plist;
5297 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5302 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
5304 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
5305 rel->r_addend, PLT_IFUNC);
5310 r_type = ELF64_R_TYPE (rel->r_info);
5311 if (is_branch_reloc (r_type))
5313 if (h != NULL && (h == tga || h == dottga))
5316 && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
5317 || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
5318 /* We have a new-style __tls_get_addr call with a marker
5322 /* Mark this section as having an old-style call. */
5323 sec->has_tls_get_addr_call = 1;
5326 /* STT_GNU_IFUNC symbols must have a PLT entry. */
5328 && !update_plt_info (abfd, ifunc, rel->r_addend))
5336 /* These special tls relocs tie a call to __tls_get_addr with
5337 its parameter symbol. */
5340 case R_PPC64_GOT_TLSLD16:
5341 case R_PPC64_GOT_TLSLD16_LO:
5342 case R_PPC64_GOT_TLSLD16_HI:
5343 case R_PPC64_GOT_TLSLD16_HA:
5344 tls_type = TLS_TLS | TLS_LD;
5347 case R_PPC64_GOT_TLSGD16:
5348 case R_PPC64_GOT_TLSGD16_LO:
5349 case R_PPC64_GOT_TLSGD16_HI:
5350 case R_PPC64_GOT_TLSGD16_HA:
5351 tls_type = TLS_TLS | TLS_GD;
5354 case R_PPC64_GOT_TPREL16_DS:
5355 case R_PPC64_GOT_TPREL16_LO_DS:
5356 case R_PPC64_GOT_TPREL16_HI:
5357 case R_PPC64_GOT_TPREL16_HA:
5359 info->flags |= DF_STATIC_TLS;
5360 tls_type = TLS_TLS | TLS_TPREL;
5363 case R_PPC64_GOT_DTPREL16_DS:
5364 case R_PPC64_GOT_DTPREL16_LO_DS:
5365 case R_PPC64_GOT_DTPREL16_HI:
5366 case R_PPC64_GOT_DTPREL16_HA:
5367 tls_type = TLS_TLS | TLS_DTPREL;
5369 sec->has_tls_reloc = 1;
5373 case R_PPC64_GOT16_DS:
5374 case R_PPC64_GOT16_HA:
5375 case R_PPC64_GOT16_HI:
5376 case R_PPC64_GOT16_LO:
5377 case R_PPC64_GOT16_LO_DS:
5378 /* This symbol requires a global offset table entry. */
5379 sec->has_toc_reloc = 1;
5380 if (r_type == R_PPC64_GOT_TLSLD16
5381 || r_type == R_PPC64_GOT_TLSGD16
5382 || r_type == R_PPC64_GOT_TPREL16_DS
5383 || r_type == R_PPC64_GOT_DTPREL16_DS
5384 || r_type == R_PPC64_GOT16
5385 || r_type == R_PPC64_GOT16_DS)
5387 htab->do_multi_toc = 1;
5388 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
5391 if (ppc64_elf_tdata (abfd)->got == NULL
5392 && !create_got_section (abfd, info))
5397 struct ppc_link_hash_entry *eh;
5398 struct got_entry *ent;
5400 eh = (struct ppc_link_hash_entry *) h;
5401 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
5402 if (ent->addend == rel->r_addend
5403 && ent->owner == abfd
5404 && ent->tls_type == tls_type)
5408 bfd_size_type amt = sizeof (*ent);
5409 ent = bfd_alloc (abfd, amt);
5412 ent->next = eh->elf.got.glist;
5413 ent->addend = rel->r_addend;
5415 ent->tls_type = tls_type;
5416 ent->is_indirect = FALSE;
5417 ent->got.refcount = 0;
5418 eh->elf.got.glist = ent;
5420 ent->got.refcount += 1;
5421 eh->tls_mask |= tls_type;
5424 /* This is a global offset table entry for a local symbol. */
5425 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5426 rel->r_addend, tls_type))
5429 /* We may also need a plt entry if the symbol turns out to be
5431 if (h != NULL && !info->shared && abiversion (abfd) != 1)
5433 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5438 case R_PPC64_PLT16_HA:
5439 case R_PPC64_PLT16_HI:
5440 case R_PPC64_PLT16_LO:
5443 /* This symbol requires a procedure linkage table entry. We
5444 actually build the entry in adjust_dynamic_symbol,
5445 because this might be a case of linking PIC code without
5446 linking in any dynamic objects, in which case we don't
5447 need to generate a procedure linkage table after all. */
5450 /* It does not make sense to have a procedure linkage
5451 table entry for a local symbol. */
5452 bfd_set_error (bfd_error_bad_value);
5457 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5460 if (h->root.root.string[0] == '.'
5461 && h->root.root.string[1] != '\0')
5462 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5466 /* The following relocations don't need to propagate the
5467 relocation if linking a shared object since they are
5468 section relative. */
5469 case R_PPC64_SECTOFF:
5470 case R_PPC64_SECTOFF_LO:
5471 case R_PPC64_SECTOFF_HI:
5472 case R_PPC64_SECTOFF_HA:
5473 case R_PPC64_SECTOFF_DS:
5474 case R_PPC64_SECTOFF_LO_DS:
5475 case R_PPC64_DTPREL16:
5476 case R_PPC64_DTPREL16_LO:
5477 case R_PPC64_DTPREL16_HI:
5478 case R_PPC64_DTPREL16_HA:
5479 case R_PPC64_DTPREL16_DS:
5480 case R_PPC64_DTPREL16_LO_DS:
5481 case R_PPC64_DTPREL16_HIGH:
5482 case R_PPC64_DTPREL16_HIGHA:
5483 case R_PPC64_DTPREL16_HIGHER:
5484 case R_PPC64_DTPREL16_HIGHERA:
5485 case R_PPC64_DTPREL16_HIGHEST:
5486 case R_PPC64_DTPREL16_HIGHESTA:
5491 case R_PPC64_REL16_LO:
5492 case R_PPC64_REL16_HI:
5493 case R_PPC64_REL16_HA:
5496 /* Not supported as a dynamic relocation. */
5497 case R_PPC64_ADDR64_LOCAL:
5500 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5502 info->callbacks->einfo (_("%P: %H: %s reloc unsupported "
5503 "in shared libraries and PIEs.\n"),
5504 abfd, sec, rel->r_offset,
5505 ppc64_elf_howto_table[r_type]->name);
5506 bfd_set_error (bfd_error_bad_value);
5512 case R_PPC64_TOC16_DS:
5513 htab->do_multi_toc = 1;
5514 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
5515 case R_PPC64_TOC16_LO:
5516 case R_PPC64_TOC16_HI:
5517 case R_PPC64_TOC16_HA:
5518 case R_PPC64_TOC16_LO_DS:
5519 sec->has_toc_reloc = 1;
5522 /* This relocation describes the C++ object vtable hierarchy.
5523 Reconstruct it for later use during GC. */
5524 case R_PPC64_GNU_VTINHERIT:
5525 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
5529 /* This relocation describes which C++ vtable entries are actually
5530 used. Record for later use during GC. */
5531 case R_PPC64_GNU_VTENTRY:
5532 BFD_ASSERT (h != NULL);
5534 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
5539 case R_PPC64_REL14_BRTAKEN:
5540 case R_PPC64_REL14_BRNTAKEN:
5542 asection *dest = NULL;
5544 /* Heuristic: If jumping outside our section, chances are
5545 we are going to need a stub. */
5548 /* If the sym is weak it may be overridden later, so
5549 don't assume we know where a weak sym lives. */
5550 if (h->root.type == bfd_link_hash_defined)
5551 dest = h->root.u.def.section;
5555 Elf_Internal_Sym *isym;
5557 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5562 dest = bfd_section_from_elf_index (abfd, isym->st_shndx);
5566 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
5571 if (h != NULL && ifunc == NULL)
5573 /* We may need a .plt entry if the function this reloc
5574 refers to is in a shared lib. */
5575 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5578 if (h->root.root.string[0] == '.'
5579 && h->root.root.string[1] != '\0')
5580 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5581 if (h == tga || h == dottga)
5582 sec->has_tls_reloc = 1;
5586 case R_PPC64_TPREL64:
5587 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
5589 info->flags |= DF_STATIC_TLS;
5592 case R_PPC64_DTPMOD64:
5593 if (rel + 1 < rel_end
5594 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
5595 && rel[1].r_offset == rel->r_offset + 8)
5596 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
5598 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
5601 case R_PPC64_DTPREL64:
5602 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
5604 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
5605 && rel[-1].r_offset == rel->r_offset - 8)
5606 /* This is the second reloc of a dtpmod, dtprel pair.
5607 Don't mark with TLS_DTPREL. */
5611 sec->has_tls_reloc = 1;
5614 struct ppc_link_hash_entry *eh;
5615 eh = (struct ppc_link_hash_entry *) h;
5616 eh->tls_mask |= tls_type;
5619 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5620 rel->r_addend, tls_type))
5623 ppc64_sec = ppc64_elf_section_data (sec);
5624 if (ppc64_sec->sec_type != sec_toc)
5628 /* One extra to simplify get_tls_mask. */
5629 amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned);
5630 ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt);
5631 if (ppc64_sec->u.toc.symndx == NULL)
5633 amt = sec->size * sizeof (bfd_vma) / 8;
5634 ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt);
5635 if (ppc64_sec->u.toc.add == NULL)
5637 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
5638 ppc64_sec->sec_type = sec_toc;
5640 BFD_ASSERT (rel->r_offset % 8 == 0);
5641 ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx;
5642 ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend;
5644 /* Mark the second slot of a GD or LD entry.
5645 -1 to indicate GD and -2 to indicate LD. */
5646 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
5647 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1;
5648 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
5649 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2;
5652 case R_PPC64_TPREL16:
5653 case R_PPC64_TPREL16_LO:
5654 case R_PPC64_TPREL16_HI:
5655 case R_PPC64_TPREL16_HA:
5656 case R_PPC64_TPREL16_DS:
5657 case R_PPC64_TPREL16_LO_DS:
5658 case R_PPC64_TPREL16_HIGH:
5659 case R_PPC64_TPREL16_HIGHA:
5660 case R_PPC64_TPREL16_HIGHER:
5661 case R_PPC64_TPREL16_HIGHERA:
5662 case R_PPC64_TPREL16_HIGHEST:
5663 case R_PPC64_TPREL16_HIGHESTA:
5666 info->flags |= DF_STATIC_TLS;
5671 case R_PPC64_ADDR64:
5672 if (opd_sym_map != NULL
5673 && rel + 1 < rel_end
5674 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
5678 if (h->root.root.string[0] == '.'
5679 && h->root.root.string[1] != 0
5680 && lookup_fdh ((struct ppc_link_hash_entry *) h, htab))
5683 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5688 Elf_Internal_Sym *isym;
5690 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5695 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5696 if (s != NULL && s != sec)
5697 opd_sym_map[OPD_NDX (rel->r_offset)] = s;
5702 case R_PPC64_ADDR16:
5703 case R_PPC64_ADDR16_DS:
5704 case R_PPC64_ADDR16_HA:
5705 case R_PPC64_ADDR16_HI:
5706 case R_PPC64_ADDR16_HIGH:
5707 case R_PPC64_ADDR16_HIGHA:
5708 case R_PPC64_ADDR16_HIGHER:
5709 case R_PPC64_ADDR16_HIGHERA:
5710 case R_PPC64_ADDR16_HIGHEST:
5711 case R_PPC64_ADDR16_HIGHESTA:
5712 case R_PPC64_ADDR16_LO:
5713 case R_PPC64_ADDR16_LO_DS:
5714 if (h != NULL && !info->shared && abiversion (abfd) != 1
5715 && rel->r_addend == 0)
5717 /* We may need a .plt entry if this reloc refers to a
5718 function in a shared lib. */
5719 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5721 h->pointer_equality_needed = 1;
5728 case R_PPC64_ADDR14:
5729 case R_PPC64_ADDR14_BRNTAKEN:
5730 case R_PPC64_ADDR14_BRTAKEN:
5731 case R_PPC64_ADDR24:
5732 case R_PPC64_ADDR32:
5733 case R_PPC64_UADDR16:
5734 case R_PPC64_UADDR32:
5735 case R_PPC64_UADDR64:
5737 if (h != NULL && !info->shared)
5738 /* We may need a copy reloc. */
5741 /* Don't propagate .opd relocs. */
5742 if (NO_OPD_RELOCS && opd_sym_map != NULL)
5745 /* If we are creating a shared library, and this is a reloc
5746 against a global symbol, or a non PC relative reloc
5747 against a local symbol, then we need to copy the reloc
5748 into the shared library. However, if we are linking with
5749 -Bsymbolic, we do not need to copy a reloc against a
5750 global symbol which is defined in an object we are
5751 including in the link (i.e., DEF_REGULAR is set). At
5752 this point we have not seen all the input files, so it is
5753 possible that DEF_REGULAR is not set now but will be set
5754 later (it is never cleared). In case of a weak definition,
5755 DEF_REGULAR may be cleared later by a strong definition in
5756 a shared library. We account for that possibility below by
5757 storing information in the dyn_relocs field of the hash
5758 table entry. A similar situation occurs when creating
5759 shared libraries and symbol visibility changes render the
5762 If on the other hand, we are creating an executable, we
5763 may need to keep relocations for symbols satisfied by a
5764 dynamic library if we manage to avoid copy relocs for the
5768 && (must_be_dyn_reloc (info, r_type)
5770 && (!SYMBOLIC_BIND (info, h)
5771 || h->root.type == bfd_link_hash_defweak
5772 || !h->def_regular))))
5773 || (ELIMINATE_COPY_RELOCS
5776 && (h->root.type == bfd_link_hash_defweak
5777 || !h->def_regular))
5781 /* We must copy these reloc types into the output file.
5782 Create a reloc section in dynobj and make room for
5786 sreloc = _bfd_elf_make_dynamic_reloc_section
5787 (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
5793 /* If this is a global symbol, we count the number of
5794 relocations we need for this symbol. */
5797 struct elf_dyn_relocs *p;
5798 struct elf_dyn_relocs **head;
5800 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
5802 if (p == NULL || p->sec != sec)
5804 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5814 if (!must_be_dyn_reloc (info, r_type))
5819 /* Track dynamic relocs needed for local syms too.
5820 We really need local syms available to do this
5822 struct ppc_dyn_relocs *p;
5823 struct ppc_dyn_relocs **head;
5824 bfd_boolean is_ifunc;
5827 Elf_Internal_Sym *isym;
5829 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5834 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5838 vpp = &elf_section_data (s)->local_dynrel;
5839 head = (struct ppc_dyn_relocs **) vpp;
5840 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
5842 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
5844 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
5846 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5852 p->ifunc = is_ifunc;
5868 /* Merge backend specific data from an object file to the output
5869 object file when linking. */
5872 ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5874 unsigned long iflags, oflags;
5876 if ((ibfd->flags & BFD_LINKER_CREATED) != 0)
5879 if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd))
5882 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
5885 iflags = elf_elfheader (ibfd)->e_flags;
5886 oflags = elf_elfheader (obfd)->e_flags;
5888 if (iflags & ~EF_PPC64_ABI)
5890 (*_bfd_error_handler)
5891 (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags);
5892 bfd_set_error (bfd_error_bad_value);
5895 else if (iflags != oflags && iflags != 0)
5897 (*_bfd_error_handler)
5898 (_("%B: ABI version %ld is not compatible with ABI version %ld output"),
5899 ibfd, iflags, oflags);
5900 bfd_set_error (bfd_error_bad_value);
5904 /* Merge Tag_compatibility attributes and any common GNU ones. */
5905 _bfd_elf_merge_object_attributes (ibfd, obfd);
5911 ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr)
5913 /* Print normal ELF private data. */
5914 _bfd_elf_print_private_bfd_data (abfd, ptr);
5916 if (elf_elfheader (abfd)->e_flags != 0)
5920 /* xgettext:c-format */
5921 fprintf (file, _("private flags = 0x%lx:"),
5922 elf_elfheader (abfd)->e_flags);
5924 if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0)
5925 fprintf (file, _(" [abiv%ld]"),
5926 elf_elfheader (abfd)->e_flags & EF_PPC64_ABI);
5933 /* OFFSET in OPD_SEC specifies a function descriptor. Return the address
5934 of the code entry point, and its section, which must be in the same
5935 object as OPD_SEC. Returns (bfd_vma) -1 on error. */
5938 opd_entry_value (asection *opd_sec,
5940 asection **code_sec,
5942 bfd_boolean in_code_sec)
5944 bfd *opd_bfd = opd_sec->owner;
5945 Elf_Internal_Rela *relocs;
5946 Elf_Internal_Rela *lo, *hi, *look;
5949 /* No relocs implies we are linking a --just-symbols object, or looking
5950 at a final linked executable with addr2line or somesuch. */
5951 if (opd_sec->reloc_count == 0)
5953 bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents;
5955 if (contents == NULL)
5957 if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents))
5958 return (bfd_vma) -1;
5959 ppc64_elf_tdata (opd_bfd)->opd.contents = contents;
5962 /* PR 17512: file: 64b9dfbb. */
5963 if (offset + 7 >= opd_sec->size || offset + 7 < offset)
5964 return (bfd_vma) -1;
5966 val = bfd_get_64 (opd_bfd, contents + offset);
5967 if (code_sec != NULL)
5969 asection *sec, *likely = NULL;
5975 && val < sec->vma + sec->size)
5981 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
5983 && (sec->flags & SEC_LOAD) != 0
5984 && (sec->flags & SEC_ALLOC) != 0)
5989 if (code_off != NULL)
5990 *code_off = val - likely->vma;
5996 BFD_ASSERT (is_ppc64_elf (opd_bfd));
5998 relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs;
6000 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
6001 /* PR 17512: file: df8e1fd6. */
6003 return (bfd_vma) -1;
6005 /* Go find the opd reloc at the sym address. */
6007 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
6011 look = lo + (hi - lo) / 2;
6012 if (look->r_offset < offset)
6014 else if (look->r_offset > offset)
6018 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd);
6020 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
6021 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
6023 unsigned long symndx = ELF64_R_SYM (look->r_info);
6024 asection *sec = NULL;
6026 if (symndx >= symtab_hdr->sh_info
6027 && elf_sym_hashes (opd_bfd) != NULL)
6029 struct elf_link_hash_entry **sym_hashes;
6030 struct elf_link_hash_entry *rh;
6032 sym_hashes = elf_sym_hashes (opd_bfd);
6033 rh = sym_hashes[symndx - symtab_hdr->sh_info];
6036 rh = elf_follow_link (rh);
6037 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
6038 || rh->root.type == bfd_link_hash_defweak);
6039 val = rh->root.u.def.value;
6040 sec = rh->root.u.def.section;
6041 if (sec->owner != opd_bfd)
6051 Elf_Internal_Sym *sym;
6053 if (symndx < symtab_hdr->sh_info)
6055 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
6058 size_t symcnt = symtab_hdr->sh_info;
6059 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6064 symtab_hdr->contents = (bfd_byte *) sym;
6070 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6076 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
6079 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
6080 val = sym->st_value;
6083 val += look->r_addend;
6084 if (code_off != NULL)
6086 if (code_sec != NULL)
6088 if (in_code_sec && *code_sec != sec)
6093 if (sec->output_section != NULL)
6094 val += sec->output_section->vma + sec->output_offset;
6103 /* If the ELF symbol SYM might be a function in SEC, return the
6104 function size and set *CODE_OFF to the function's entry point,
6105 otherwise return zero. */
6107 static bfd_size_type
6108 ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec,
6113 if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT
6114 | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0)
6118 if (!(sym->flags & BSF_SYNTHETIC))
6119 size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
6121 if (strcmp (sym->section->name, ".opd") == 0)
6123 if (opd_entry_value (sym->section, sym->value,
6124 &sec, code_off, TRUE) == (bfd_vma) -1)
6126 /* An old ABI binary with dot-syms has a size of 24 on the .opd
6127 symbol. This size has nothing to do with the code size of the
6128 function, which is what we're supposed to return, but the
6129 code size isn't available without looking up the dot-sym.
6130 However, doing that would be a waste of time particularly
6131 since elf_find_function will look at the dot-sym anyway.
6132 Now, elf_find_function will keep the largest size of any
6133 function sym found at the code address of interest, so return
6134 1 here to avoid it incorrectly caching a larger function size
6135 for a small function. This does mean we return the wrong
6136 size for a new-ABI function of size 24, but all that does is
6137 disable caching for such functions. */
6143 if (sym->section != sec)
6145 *code_off = sym->value;
6152 /* Return true if symbol is defined in a regular object file. */
6155 is_static_defined (struct elf_link_hash_entry *h)
6157 return ((h->root.type == bfd_link_hash_defined
6158 || h->root.type == bfd_link_hash_defweak)
6159 && h->root.u.def.section != NULL
6160 && h->root.u.def.section->output_section != NULL);
6163 /* If FDH is a function descriptor symbol, return the associated code
6164 entry symbol if it is defined. Return NULL otherwise. */
6166 static struct ppc_link_hash_entry *
6167 defined_code_entry (struct ppc_link_hash_entry *fdh)
6169 if (fdh->is_func_descriptor)
6171 struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh);
6172 if (fh->elf.root.type == bfd_link_hash_defined
6173 || fh->elf.root.type == bfd_link_hash_defweak)
6179 /* If FH is a function code entry symbol, return the associated
6180 function descriptor symbol if it is defined. Return NULL otherwise. */
6182 static struct ppc_link_hash_entry *
6183 defined_func_desc (struct ppc_link_hash_entry *fh)
6186 && fh->oh->is_func_descriptor)
6188 struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh);
6189 if (fdh->elf.root.type == bfd_link_hash_defined
6190 || fdh->elf.root.type == bfd_link_hash_defweak)
6196 /* Mark all our entry sym sections, both opd and code section. */
6199 ppc64_elf_gc_keep (struct bfd_link_info *info)
6201 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6202 struct bfd_sym_chain *sym;
6207 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
6209 struct ppc_link_hash_entry *eh, *fh;
6212 eh = (struct ppc_link_hash_entry *)
6213 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE);
6216 if (eh->elf.root.type != bfd_link_hash_defined
6217 && eh->elf.root.type != bfd_link_hash_defweak)
6220 fh = defined_code_entry (eh);
6223 sec = fh->elf.root.u.def.section;
6224 sec->flags |= SEC_KEEP;
6226 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6227 && opd_entry_value (eh->elf.root.u.def.section,
6228 eh->elf.root.u.def.value,
6229 &sec, NULL, FALSE) != (bfd_vma) -1)
6230 sec->flags |= SEC_KEEP;
6232 sec = eh->elf.root.u.def.section;
6233 sec->flags |= SEC_KEEP;
6237 /* Mark sections containing dynamically referenced symbols. When
6238 building shared libraries, we must assume that any visible symbol is
6242 ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
6244 struct bfd_link_info *info = (struct bfd_link_info *) inf;
6245 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
6246 struct ppc_link_hash_entry *fdh;
6247 struct bfd_elf_dynamic_list *d = info->dynamic_list;
6249 /* Dynamic linking info is on the func descriptor sym. */
6250 fdh = defined_func_desc (eh);
6254 if ((eh->elf.root.type == bfd_link_hash_defined
6255 || eh->elf.root.type == bfd_link_hash_defweak)
6256 && (eh->elf.ref_dynamic
6257 || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf))
6258 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
6259 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN
6260 && (!info->executable
6261 || info->export_dynamic
6264 && (*d->match) (&d->head, NULL, eh->elf.root.root.string)))
6265 && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL
6266 || !bfd_hide_sym_by_version (info->version_info,
6267 eh->elf.root.root.string)))))
6270 struct ppc_link_hash_entry *fh;
6272 eh->elf.root.u.def.section->flags |= SEC_KEEP;
6274 /* Function descriptor syms cause the associated
6275 function code sym section to be marked. */
6276 fh = defined_code_entry (eh);
6279 code_sec = fh->elf.root.u.def.section;
6280 code_sec->flags |= SEC_KEEP;
6282 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6283 && opd_entry_value (eh->elf.root.u.def.section,
6284 eh->elf.root.u.def.value,
6285 &code_sec, NULL, FALSE) != (bfd_vma) -1)
6286 code_sec->flags |= SEC_KEEP;
6292 /* Return the section that should be marked against GC for a given
6296 ppc64_elf_gc_mark_hook (asection *sec,
6297 struct bfd_link_info *info,
6298 Elf_Internal_Rela *rel,
6299 struct elf_link_hash_entry *h,
6300 Elf_Internal_Sym *sym)
6304 /* Syms return NULL if we're marking .opd, so we avoid marking all
6305 function sections, as all functions are referenced in .opd. */
6307 if (get_opd_info (sec) != NULL)
6312 enum elf_ppc64_reloc_type r_type;
6313 struct ppc_link_hash_entry *eh, *fh, *fdh;
6315 r_type = ELF64_R_TYPE (rel->r_info);
6318 case R_PPC64_GNU_VTINHERIT:
6319 case R_PPC64_GNU_VTENTRY:
6323 switch (h->root.type)
6325 case bfd_link_hash_defined:
6326 case bfd_link_hash_defweak:
6327 eh = (struct ppc_link_hash_entry *) h;
6328 fdh = defined_func_desc (eh);
6332 /* Function descriptor syms cause the associated
6333 function code sym section to be marked. */
6334 fh = defined_code_entry (eh);
6337 /* They also mark their opd section. */
6338 eh->elf.root.u.def.section->gc_mark = 1;
6340 rsec = fh->elf.root.u.def.section;
6342 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6343 && opd_entry_value (eh->elf.root.u.def.section,
6344 eh->elf.root.u.def.value,
6345 &rsec, NULL, FALSE) != (bfd_vma) -1)
6346 eh->elf.root.u.def.section->gc_mark = 1;
6348 rsec = h->root.u.def.section;
6351 case bfd_link_hash_common:
6352 rsec = h->root.u.c.p->section;
6356 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
6362 struct _opd_sec_data *opd;
6364 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
6365 opd = get_opd_info (rsec);
6366 if (opd != NULL && opd->func_sec != NULL)
6370 rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)];
6377 /* Update the .got, .plt. and dynamic reloc reference counts for the
6378 section being removed. */
6381 ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
6382 asection *sec, const Elf_Internal_Rela *relocs)
6384 struct ppc_link_hash_table *htab;
6385 Elf_Internal_Shdr *symtab_hdr;
6386 struct elf_link_hash_entry **sym_hashes;
6387 struct got_entry **local_got_ents;
6388 const Elf_Internal_Rela *rel, *relend;
6390 if (info->relocatable)
6393 if ((sec->flags & SEC_ALLOC) == 0)
6396 elf_section_data (sec)->local_dynrel = NULL;
6398 htab = ppc_hash_table (info);
6402 symtab_hdr = &elf_symtab_hdr (abfd);
6403 sym_hashes = elf_sym_hashes (abfd);
6404 local_got_ents = elf_local_got_ents (abfd);
6406 relend = relocs + sec->reloc_count;
6407 for (rel = relocs; rel < relend; rel++)
6409 unsigned long r_symndx;
6410 enum elf_ppc64_reloc_type r_type;
6411 struct elf_link_hash_entry *h = NULL;
6412 unsigned char tls_type = 0;
6414 r_symndx = ELF64_R_SYM (rel->r_info);
6415 r_type = ELF64_R_TYPE (rel->r_info);
6416 if (r_symndx >= symtab_hdr->sh_info)
6418 struct ppc_link_hash_entry *eh;
6419 struct elf_dyn_relocs **pp;
6420 struct elf_dyn_relocs *p;
6422 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6423 h = elf_follow_link (h);
6424 eh = (struct ppc_link_hash_entry *) h;
6426 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
6429 /* Everything must go for SEC. */
6435 if (is_branch_reloc (r_type))
6437 struct plt_entry **ifunc = NULL;
6440 if (h->type == STT_GNU_IFUNC)
6441 ifunc = &h->plt.plist;
6443 else if (local_got_ents != NULL)
6445 struct plt_entry **local_plt = (struct plt_entry **)
6446 (local_got_ents + symtab_hdr->sh_info);
6447 unsigned char *local_got_tls_masks = (unsigned char *)
6448 (local_plt + symtab_hdr->sh_info);
6449 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
6450 ifunc = local_plt + r_symndx;
6454 struct plt_entry *ent;
6456 for (ent = *ifunc; ent != NULL; ent = ent->next)
6457 if (ent->addend == rel->r_addend)
6461 if (ent->plt.refcount > 0)
6462 ent->plt.refcount -= 1;
6469 case R_PPC64_GOT_TLSLD16:
6470 case R_PPC64_GOT_TLSLD16_LO:
6471 case R_PPC64_GOT_TLSLD16_HI:
6472 case R_PPC64_GOT_TLSLD16_HA:
6473 tls_type = TLS_TLS | TLS_LD;
6476 case R_PPC64_GOT_TLSGD16:
6477 case R_PPC64_GOT_TLSGD16_LO:
6478 case R_PPC64_GOT_TLSGD16_HI:
6479 case R_PPC64_GOT_TLSGD16_HA:
6480 tls_type = TLS_TLS | TLS_GD;
6483 case R_PPC64_GOT_TPREL16_DS:
6484 case R_PPC64_GOT_TPREL16_LO_DS:
6485 case R_PPC64_GOT_TPREL16_HI:
6486 case R_PPC64_GOT_TPREL16_HA:
6487 tls_type = TLS_TLS | TLS_TPREL;
6490 case R_PPC64_GOT_DTPREL16_DS:
6491 case R_PPC64_GOT_DTPREL16_LO_DS:
6492 case R_PPC64_GOT_DTPREL16_HI:
6493 case R_PPC64_GOT_DTPREL16_HA:
6494 tls_type = TLS_TLS | TLS_DTPREL;
6498 case R_PPC64_GOT16_DS:
6499 case R_PPC64_GOT16_HA:
6500 case R_PPC64_GOT16_HI:
6501 case R_PPC64_GOT16_LO:
6502 case R_PPC64_GOT16_LO_DS:
6505 struct got_entry *ent;
6510 ent = local_got_ents[r_symndx];
6512 for (; ent != NULL; ent = ent->next)
6513 if (ent->addend == rel->r_addend
6514 && ent->owner == abfd
6515 && ent->tls_type == tls_type)
6519 if (ent->got.refcount > 0)
6520 ent->got.refcount -= 1;
6524 case R_PPC64_PLT16_HA:
6525 case R_PPC64_PLT16_HI:
6526 case R_PPC64_PLT16_LO:
6530 case R_PPC64_REL14_BRNTAKEN:
6531 case R_PPC64_REL14_BRTAKEN:
6535 struct plt_entry *ent;
6537 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6538 if (ent->addend == rel->r_addend)
6540 if (ent != NULL && ent->plt.refcount > 0)
6541 ent->plt.refcount -= 1;
6552 /* The maximum size of .sfpr. */
6553 #define SFPR_MAX (218*4)
6555 struct sfpr_def_parms
6557 const char name[12];
6558 unsigned char lo, hi;
6559 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
6560 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
6563 /* Auto-generate _save*, _rest* functions in .sfpr. */
6566 sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
6568 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6570 size_t len = strlen (parm->name);
6571 bfd_boolean writing = FALSE;
6577 memcpy (sym, parm->name, len);
6580 for (i = parm->lo; i <= parm->hi; i++)
6582 struct elf_link_hash_entry *h;
6584 sym[len + 0] = i / 10 + '0';
6585 sym[len + 1] = i % 10 + '0';
6586 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
6590 h->root.type = bfd_link_hash_defined;
6591 h->root.u.def.section = htab->sfpr;
6592 h->root.u.def.value = htab->sfpr->size;
6595 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
6597 if (htab->sfpr->contents == NULL)
6599 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
6600 if (htab->sfpr->contents == NULL)
6606 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
6608 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
6610 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
6611 htab->sfpr->size = p - htab->sfpr->contents;
6619 savegpr0 (bfd *abfd, bfd_byte *p, int r)
6621 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6626 savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
6628 p = savegpr0 (abfd, p, r);
6629 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
6631 bfd_put_32 (abfd, BLR, p);
6636 restgpr0 (bfd *abfd, bfd_byte *p, int r)
6638 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6643 restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
6645 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
6647 p = restgpr0 (abfd, p, r);
6648 bfd_put_32 (abfd, MTLR_R0, p);
6652 p = restgpr0 (abfd, p, 30);
6653 p = restgpr0 (abfd, p, 31);
6655 bfd_put_32 (abfd, BLR, p);
6660 savegpr1 (bfd *abfd, bfd_byte *p, int r)
6662 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6667 savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
6669 p = savegpr1 (abfd, p, r);
6670 bfd_put_32 (abfd, BLR, p);
6675 restgpr1 (bfd *abfd, bfd_byte *p, int r)
6677 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6682 restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
6684 p = restgpr1 (abfd, p, r);
6685 bfd_put_32 (abfd, BLR, p);
6690 savefpr (bfd *abfd, bfd_byte *p, int r)
6692 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6697 savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
6699 p = savefpr (abfd, p, r);
6700 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
6702 bfd_put_32 (abfd, BLR, p);
6707 restfpr (bfd *abfd, bfd_byte *p, int r)
6709 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6714 restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
6716 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
6718 p = restfpr (abfd, p, r);
6719 bfd_put_32 (abfd, MTLR_R0, p);
6723 p = restfpr (abfd, p, 30);
6724 p = restfpr (abfd, p, 31);
6726 bfd_put_32 (abfd, BLR, p);
6731 savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
6733 p = savefpr (abfd, p, r);
6734 bfd_put_32 (abfd, BLR, p);
6739 restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
6741 p = restfpr (abfd, p, r);
6742 bfd_put_32 (abfd, BLR, p);
6747 savevr (bfd *abfd, bfd_byte *p, int r)
6749 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6751 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
6756 savevr_tail (bfd *abfd, bfd_byte *p, int r)
6758 p = savevr (abfd, p, r);
6759 bfd_put_32 (abfd, BLR, p);
6764 restvr (bfd *abfd, bfd_byte *p, int r)
6766 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6768 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
6773 restvr_tail (bfd *abfd, bfd_byte *p, int r)
6775 p = restvr (abfd, p, r);
6776 bfd_put_32 (abfd, BLR, p);
6780 /* Called via elf_link_hash_traverse to transfer dynamic linking
6781 information on function code symbol entries to their corresponding
6782 function descriptor symbol entries. */
6785 func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
6787 struct bfd_link_info *info;
6788 struct ppc_link_hash_table *htab;
6789 struct plt_entry *ent;
6790 struct ppc_link_hash_entry *fh;
6791 struct ppc_link_hash_entry *fdh;
6792 bfd_boolean force_local;
6794 fh = (struct ppc_link_hash_entry *) h;
6795 if (fh->elf.root.type == bfd_link_hash_indirect)
6799 htab = ppc_hash_table (info);
6803 /* Resolve undefined references to dot-symbols as the value
6804 in the function descriptor, if we have one in a regular object.
6805 This is to satisfy cases like ".quad .foo". Calls to functions
6806 in dynamic objects are handled elsewhere. */
6807 if (fh->elf.root.type == bfd_link_hash_undefweak
6808 && fh->was_undefined
6809 && (fdh = defined_func_desc (fh)) != NULL
6810 && get_opd_info (fdh->elf.root.u.def.section) != NULL
6811 && opd_entry_value (fdh->elf.root.u.def.section,
6812 fdh->elf.root.u.def.value,
6813 &fh->elf.root.u.def.section,
6814 &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1)
6816 fh->elf.root.type = fdh->elf.root.type;
6817 fh->elf.forced_local = 1;
6818 fh->elf.def_regular = fdh->elf.def_regular;
6819 fh->elf.def_dynamic = fdh->elf.def_dynamic;
6822 /* If this is a function code symbol, transfer dynamic linking
6823 information to the function descriptor symbol. */
6827 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
6828 if (ent->plt.refcount > 0)
6831 || fh->elf.root.root.string[0] != '.'
6832 || fh->elf.root.root.string[1] == '\0')
6835 /* Find the corresponding function descriptor symbol. Create it
6836 as undefined if necessary. */
6838 fdh = lookup_fdh (fh, htab);
6840 && !info->executable
6841 && (fh->elf.root.type == bfd_link_hash_undefined
6842 || fh->elf.root.type == bfd_link_hash_undefweak))
6844 fdh = make_fdh (info, fh);
6849 /* Fake function descriptors are made undefweak. If the function
6850 code symbol is strong undefined, make the fake sym the same.
6851 If the function code symbol is defined, then force the fake
6852 descriptor local; We can't support overriding of symbols in a
6853 shared library on a fake descriptor. */
6857 && fdh->elf.root.type == bfd_link_hash_undefweak)
6859 if (fh->elf.root.type == bfd_link_hash_undefined)
6861 fdh->elf.root.type = bfd_link_hash_undefined;
6862 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
6864 else if (fh->elf.root.type == bfd_link_hash_defined
6865 || fh->elf.root.type == bfd_link_hash_defweak)
6867 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
6872 && !fdh->elf.forced_local
6873 && (!info->executable
6874 || fdh->elf.def_dynamic
6875 || fdh->elf.ref_dynamic
6876 || (fdh->elf.root.type == bfd_link_hash_undefweak
6877 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
6879 if (fdh->elf.dynindx == -1)
6880 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
6882 fdh->elf.ref_regular |= fh->elf.ref_regular;
6883 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
6884 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
6885 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
6886 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
6888 move_plt_plist (fh, fdh);
6889 fdh->elf.needs_plt = 1;
6891 fdh->is_func_descriptor = 1;
6896 /* Now that the info is on the function descriptor, clear the
6897 function code sym info. Any function code syms for which we
6898 don't have a definition in a regular file, we force local.
6899 This prevents a shared library from exporting syms that have
6900 been imported from another library. Function code syms that
6901 are really in the library we must leave global to prevent the
6902 linker dragging in a definition from a static library. */
6903 force_local = (!fh->elf.def_regular
6905 || !fdh->elf.def_regular
6906 || fdh->elf.forced_local);
6907 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
6912 /* Called near the start of bfd_elf_size_dynamic_sections. We use
6913 this hook to a) provide some gcc support functions, and b) transfer
6914 dynamic linking information gathered so far on function code symbol
6915 entries, to their corresponding function descriptor symbol entries. */
6918 ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
6919 struct bfd_link_info *info)
6921 struct ppc_link_hash_table *htab;
6923 static const struct sfpr_def_parms funcs[] =
6925 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
6926 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
6927 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
6928 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
6929 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
6930 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
6931 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
6932 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
6933 { "._savef", 14, 31, savefpr, savefpr1_tail },
6934 { "._restf", 14, 31, restfpr, restfpr1_tail },
6935 { "_savevr_", 20, 31, savevr, savevr_tail },
6936 { "_restvr_", 20, 31, restvr, restvr_tail }
6939 htab = ppc_hash_table (info);
6943 if (!info->relocatable
6944 && htab->elf.hgot != NULL)
6946 _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE);
6947 /* Make .TOC. defined so as to prevent it being made dynamic.
6948 The wrong value here is fixed later in ppc64_elf_set_toc. */
6949 htab->elf.hgot->type = STT_OBJECT;
6950 htab->elf.hgot->root.type = bfd_link_hash_defined;
6951 htab->elf.hgot->root.u.def.value = 0;
6952 htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr;
6953 htab->elf.hgot->def_regular = 1;
6954 htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1))
6958 if (htab->sfpr == NULL)
6959 /* We don't have any relocs. */
6962 /* Provide any missing _save* and _rest* functions. */
6963 htab->sfpr->size = 0;
6964 if (htab->params->save_restore_funcs)
6965 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
6966 if (!sfpr_define (info, &funcs[i]))
6969 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
6971 if (htab->sfpr->size == 0)
6972 htab->sfpr->flags |= SEC_EXCLUDE;
6977 /* Return true if we have dynamic relocs that apply to read-only sections. */
6980 readonly_dynrelocs (struct elf_link_hash_entry *h)
6982 struct ppc_link_hash_entry *eh;
6983 struct elf_dyn_relocs *p;
6985 eh = (struct ppc_link_hash_entry *) h;
6986 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6988 asection *s = p->sec->output_section;
6990 if (s != NULL && (s->flags & SEC_READONLY) != 0)
6996 /* Adjust a symbol defined by a dynamic object and referenced by a
6997 regular object. The current definition is in some section of the
6998 dynamic object, but we're not including those sections. We have to
6999 change the definition to something the rest of the link can
7003 ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
7004 struct elf_link_hash_entry *h)
7006 struct ppc_link_hash_table *htab;
7009 htab = ppc_hash_table (info);
7013 /* Deal with function syms. */
7014 if (h->type == STT_FUNC
7015 || h->type == STT_GNU_IFUNC
7018 /* Clear procedure linkage table information for any symbol that
7019 won't need a .plt entry. */
7020 struct plt_entry *ent;
7021 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7022 if (ent->plt.refcount > 0)
7025 || (h->type != STT_GNU_IFUNC
7026 && (SYMBOL_CALLS_LOCAL (info, h)
7027 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
7028 && h->root.type == bfd_link_hash_undefweak))))
7030 h->plt.plist = NULL;
7032 h->pointer_equality_needed = 0;
7034 else if (abiversion (info->output_bfd) == 2)
7036 /* Taking a function's address in a read/write section
7037 doesn't require us to define the function symbol in the
7038 executable on a global entry stub. A dynamic reloc can
7040 if (h->pointer_equality_needed
7041 && h->type != STT_GNU_IFUNC
7042 && !readonly_dynrelocs (h))
7044 h->pointer_equality_needed = 0;
7048 /* After adjust_dynamic_symbol, non_got_ref set in the
7049 non-shared case means that we have allocated space in
7050 .dynbss for the symbol and thus dyn_relocs for this
7051 symbol should be discarded.
7052 If we get here we know we are making a PLT entry for this
7053 symbol, and in an executable we'd normally resolve
7054 relocations against this symbol to the PLT entry. Allow
7055 dynamic relocs if the reference is weak, and the dynamic
7056 relocs will not cause text relocation. */
7057 else if (!h->ref_regular_nonweak
7059 && h->type != STT_GNU_IFUNC
7060 && !readonly_dynrelocs (h))
7063 /* If making a plt entry, then we don't need copy relocs. */
7068 h->plt.plist = NULL;
7070 /* If this is a weak symbol, and there is a real definition, the
7071 processor independent code will have arranged for us to see the
7072 real definition first, and we can just use the same value. */
7073 if (h->u.weakdef != NULL)
7075 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
7076 || h->u.weakdef->root.type == bfd_link_hash_defweak);
7077 h->root.u.def.section = h->u.weakdef->root.u.def.section;
7078 h->root.u.def.value = h->u.weakdef->root.u.def.value;
7079 if (ELIMINATE_COPY_RELOCS)
7080 h->non_got_ref = h->u.weakdef->non_got_ref;
7084 /* If we are creating a shared library, we must presume that the
7085 only references to the symbol are via the global offset table.
7086 For such cases we need not do anything here; the relocations will
7087 be handled correctly by relocate_section. */
7091 /* If there are no references to this symbol that do not use the
7092 GOT, we don't need to generate a copy reloc. */
7093 if (!h->non_got_ref)
7096 /* Don't generate a copy reloc for symbols defined in the executable. */
7097 if (!h->def_dynamic || !h->ref_regular || h->def_regular)
7100 /* If -z nocopyreloc was given, don't generate them either. */
7101 if (info->nocopyreloc)
7107 /* If we didn't find any dynamic relocs in read-only sections, then
7108 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
7109 if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h))
7115 /* Protected variables do not work with .dynbss. The copy in
7116 .dynbss won't be used by the shared library with the protected
7117 definition for the variable. Text relocations are preferable
7118 to an incorrect program. */
7119 if (h->protected_def)
7125 if (h->plt.plist != NULL)
7127 /* We should never get here, but unfortunately there are versions
7128 of gcc out there that improperly (for this ABI) put initialized
7129 function pointers, vtable refs and suchlike in read-only
7130 sections. Allow them to proceed, but warn that this might
7131 break at runtime. */
7132 info->callbacks->einfo
7133 (_("%P: copy reloc against `%T' requires lazy plt linking; "
7134 "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"),
7135 h->root.root.string);
7138 /* This is a reference to a symbol defined by a dynamic object which
7139 is not a function. */
7141 /* We must allocate the symbol in our .dynbss section, which will
7142 become part of the .bss section of the executable. There will be
7143 an entry for this symbol in the .dynsym section. The dynamic
7144 object will contain position independent code, so all references
7145 from the dynamic object to this symbol will go through the global
7146 offset table. The dynamic linker will use the .dynsym entry to
7147 determine the address it must put in the global offset table, so
7148 both the dynamic object and the regular object will refer to the
7149 same memory location for the variable. */
7151 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
7152 to copy the initial value out of the dynamic object and into the
7153 runtime process image. We need to remember the offset into the
7154 .rela.bss section we are going to use. */
7155 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
7157 htab->relbss->size += sizeof (Elf64_External_Rela);
7163 return _bfd_elf_adjust_dynamic_copy (info, h, s);
7166 /* If given a function descriptor symbol, hide both the function code
7167 sym and the descriptor. */
7169 ppc64_elf_hide_symbol (struct bfd_link_info *info,
7170 struct elf_link_hash_entry *h,
7171 bfd_boolean force_local)
7173 struct ppc_link_hash_entry *eh;
7174 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
7176 eh = (struct ppc_link_hash_entry *) h;
7177 if (eh->is_func_descriptor)
7179 struct ppc_link_hash_entry *fh = eh->oh;
7184 struct ppc_link_hash_table *htab;
7187 /* We aren't supposed to use alloca in BFD because on
7188 systems which do not have alloca the version in libiberty
7189 calls xmalloc, which might cause the program to crash
7190 when it runs out of memory. This function doesn't have a
7191 return status, so there's no way to gracefully return an
7192 error. So cheat. We know that string[-1] can be safely
7193 accessed; It's either a string in an ELF string table,
7194 or allocated in an objalloc structure. */
7196 p = eh->elf.root.root.string - 1;
7199 htab = ppc_hash_table (info);
7203 fh = (struct ppc_link_hash_entry *)
7204 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
7207 /* Unfortunately, if it so happens that the string we were
7208 looking for was allocated immediately before this string,
7209 then we overwrote the string terminator. That's the only
7210 reason the lookup should fail. */
7213 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
7214 while (q >= eh->elf.root.root.string && *q == *p)
7216 if (q < eh->elf.root.root.string && *p == '.')
7217 fh = (struct ppc_link_hash_entry *)
7218 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
7227 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
7232 get_sym_h (struct elf_link_hash_entry **hp,
7233 Elf_Internal_Sym **symp,
7235 unsigned char **tls_maskp,
7236 Elf_Internal_Sym **locsymsp,
7237 unsigned long r_symndx,
7240 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
7242 if (r_symndx >= symtab_hdr->sh_info)
7244 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
7245 struct elf_link_hash_entry *h;
7247 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7248 h = elf_follow_link (h);
7256 if (symsecp != NULL)
7258 asection *symsec = NULL;
7259 if (h->root.type == bfd_link_hash_defined
7260 || h->root.type == bfd_link_hash_defweak)
7261 symsec = h->root.u.def.section;
7265 if (tls_maskp != NULL)
7267 struct ppc_link_hash_entry *eh;
7269 eh = (struct ppc_link_hash_entry *) h;
7270 *tls_maskp = &eh->tls_mask;
7275 Elf_Internal_Sym *sym;
7276 Elf_Internal_Sym *locsyms = *locsymsp;
7278 if (locsyms == NULL)
7280 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
7281 if (locsyms == NULL)
7282 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
7283 symtab_hdr->sh_info,
7284 0, NULL, NULL, NULL);
7285 if (locsyms == NULL)
7287 *locsymsp = locsyms;
7289 sym = locsyms + r_symndx;
7297 if (symsecp != NULL)
7298 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
7300 if (tls_maskp != NULL)
7302 struct got_entry **lgot_ents;
7303 unsigned char *tls_mask;
7306 lgot_ents = elf_local_got_ents (ibfd);
7307 if (lgot_ents != NULL)
7309 struct plt_entry **local_plt = (struct plt_entry **)
7310 (lgot_ents + symtab_hdr->sh_info);
7311 unsigned char *lgot_masks = (unsigned char *)
7312 (local_plt + symtab_hdr->sh_info);
7313 tls_mask = &lgot_masks[r_symndx];
7315 *tls_maskp = tls_mask;
7321 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
7322 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
7323 type suitable for optimization, and 1 otherwise. */
7326 get_tls_mask (unsigned char **tls_maskp,
7327 unsigned long *toc_symndx,
7328 bfd_vma *toc_addend,
7329 Elf_Internal_Sym **locsymsp,
7330 const Elf_Internal_Rela *rel,
7333 unsigned long r_symndx;
7335 struct elf_link_hash_entry *h;
7336 Elf_Internal_Sym *sym;
7340 r_symndx = ELF64_R_SYM (rel->r_info);
7341 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
7344 if ((*tls_maskp != NULL && **tls_maskp != 0)
7346 || ppc64_elf_section_data (sec) == NULL
7347 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
7350 /* Look inside a TOC section too. */
7353 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
7354 off = h->root.u.def.value;
7357 off = sym->st_value;
7358 off += rel->r_addend;
7359 BFD_ASSERT (off % 8 == 0);
7360 r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8];
7361 next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1];
7362 if (toc_symndx != NULL)
7363 *toc_symndx = r_symndx;
7364 if (toc_addend != NULL)
7365 *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8];
7366 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
7368 if ((h == NULL || is_static_defined (h))
7369 && (next_r == -1 || next_r == -2))
7374 /* Find (or create) an entry in the tocsave hash table. */
7376 static struct tocsave_entry *
7377 tocsave_find (struct ppc_link_hash_table *htab,
7378 enum insert_option insert,
7379 Elf_Internal_Sym **local_syms,
7380 const Elf_Internal_Rela *irela,
7383 unsigned long r_indx;
7384 struct elf_link_hash_entry *h;
7385 Elf_Internal_Sym *sym;
7386 struct tocsave_entry ent, *p;
7388 struct tocsave_entry **slot;
7390 r_indx = ELF64_R_SYM (irela->r_info);
7391 if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd))
7393 if (ent.sec == NULL || ent.sec->output_section == NULL)
7395 (*_bfd_error_handler)
7396 (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"));
7401 ent.offset = h->root.u.def.value;
7403 ent.offset = sym->st_value;
7404 ent.offset += irela->r_addend;
7406 hash = tocsave_htab_hash (&ent);
7407 slot = ((struct tocsave_entry **)
7408 htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert));
7414 p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p));
7423 /* Adjust all global syms defined in opd sections. In gcc generated
7424 code for the old ABI, these will already have been done. */
7427 adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
7429 struct ppc_link_hash_entry *eh;
7431 struct _opd_sec_data *opd;
7433 if (h->root.type == bfd_link_hash_indirect)
7436 if (h->root.type != bfd_link_hash_defined
7437 && h->root.type != bfd_link_hash_defweak)
7440 eh = (struct ppc_link_hash_entry *) h;
7441 if (eh->adjust_done)
7444 sym_sec = eh->elf.root.u.def.section;
7445 opd = get_opd_info (sym_sec);
7446 if (opd != NULL && opd->adjust != NULL)
7448 long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)];
7451 /* This entry has been deleted. */
7452 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
7455 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
7456 if (discarded_section (dsec))
7458 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
7462 eh->elf.root.u.def.value = 0;
7463 eh->elf.root.u.def.section = dsec;
7466 eh->elf.root.u.def.value += adjust;
7467 eh->adjust_done = 1;
7472 /* Handles decrementing dynamic reloc counts for the reloc specified by
7473 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM
7474 have already been determined. */
7477 dec_dynrel_count (bfd_vma r_info,
7479 struct bfd_link_info *info,
7480 Elf_Internal_Sym **local_syms,
7481 struct elf_link_hash_entry *h,
7482 Elf_Internal_Sym *sym)
7484 enum elf_ppc64_reloc_type r_type;
7485 asection *sym_sec = NULL;
7487 /* Can this reloc be dynamic? This switch, and later tests here
7488 should be kept in sync with the code in check_relocs. */
7489 r_type = ELF64_R_TYPE (r_info);
7495 case R_PPC64_TPREL16:
7496 case R_PPC64_TPREL16_LO:
7497 case R_PPC64_TPREL16_HI:
7498 case R_PPC64_TPREL16_HA:
7499 case R_PPC64_TPREL16_DS:
7500 case R_PPC64_TPREL16_LO_DS:
7501 case R_PPC64_TPREL16_HIGH:
7502 case R_PPC64_TPREL16_HIGHA:
7503 case R_PPC64_TPREL16_HIGHER:
7504 case R_PPC64_TPREL16_HIGHERA:
7505 case R_PPC64_TPREL16_HIGHEST:
7506 case R_PPC64_TPREL16_HIGHESTA:
7510 case R_PPC64_TPREL64:
7511 case R_PPC64_DTPMOD64:
7512 case R_PPC64_DTPREL64:
7513 case R_PPC64_ADDR64:
7517 case R_PPC64_ADDR14:
7518 case R_PPC64_ADDR14_BRNTAKEN:
7519 case R_PPC64_ADDR14_BRTAKEN:
7520 case R_PPC64_ADDR16:
7521 case R_PPC64_ADDR16_DS:
7522 case R_PPC64_ADDR16_HA:
7523 case R_PPC64_ADDR16_HI:
7524 case R_PPC64_ADDR16_HIGH:
7525 case R_PPC64_ADDR16_HIGHA:
7526 case R_PPC64_ADDR16_HIGHER:
7527 case R_PPC64_ADDR16_HIGHERA:
7528 case R_PPC64_ADDR16_HIGHEST:
7529 case R_PPC64_ADDR16_HIGHESTA:
7530 case R_PPC64_ADDR16_LO:
7531 case R_PPC64_ADDR16_LO_DS:
7532 case R_PPC64_ADDR24:
7533 case R_PPC64_ADDR32:
7534 case R_PPC64_UADDR16:
7535 case R_PPC64_UADDR32:
7536 case R_PPC64_UADDR64:
7541 if (local_syms != NULL)
7543 unsigned long r_symndx;
7544 bfd *ibfd = sec->owner;
7546 r_symndx = ELF64_R_SYM (r_info);
7547 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
7552 && (must_be_dyn_reloc (info, r_type)
7554 && (!SYMBOLIC_BIND (info, h)
7555 || h->root.type == bfd_link_hash_defweak
7556 || !h->def_regular))))
7557 || (ELIMINATE_COPY_RELOCS
7560 && (h->root.type == bfd_link_hash_defweak
7561 || !h->def_regular)))
7568 struct elf_dyn_relocs *p;
7569 struct elf_dyn_relocs **pp;
7570 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
7572 /* elf_gc_sweep may have already removed all dyn relocs associated
7573 with local syms for a given section. Also, symbol flags are
7574 changed by elf_gc_sweep_symbol, confusing the test above. Don't
7575 report a dynreloc miscount. */
7576 if (*pp == NULL && info->gc_sections)
7579 while ((p = *pp) != NULL)
7583 if (!must_be_dyn_reloc (info, r_type))
7595 struct ppc_dyn_relocs *p;
7596 struct ppc_dyn_relocs **pp;
7598 bfd_boolean is_ifunc;
7600 if (local_syms == NULL)
7601 sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
7602 if (sym_sec == NULL)
7605 vpp = &elf_section_data (sym_sec)->local_dynrel;
7606 pp = (struct ppc_dyn_relocs **) vpp;
7608 if (*pp == NULL && info->gc_sections)
7611 is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC;
7612 while ((p = *pp) != NULL)
7614 if (p->sec == sec && p->ifunc == is_ifunc)
7625 info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"),
7627 bfd_set_error (bfd_error_bad_value);
7631 /* Remove unused Official Procedure Descriptor entries. Currently we
7632 only remove those associated with functions in discarded link-once
7633 sections, or weakly defined functions that have been overridden. It
7634 would be possible to remove many more entries for statically linked
7638 ppc64_elf_edit_opd (struct bfd_link_info *info)
7641 bfd_boolean some_edited = FALSE;
7642 asection *need_pad = NULL;
7643 struct ppc_link_hash_table *htab;
7645 htab = ppc_hash_table (info);
7649 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
7652 Elf_Internal_Rela *relstart, *rel, *relend;
7653 Elf_Internal_Shdr *symtab_hdr;
7654 Elf_Internal_Sym *local_syms;
7655 struct _opd_sec_data *opd;
7656 bfd_boolean need_edit, add_aux_fields, broken;
7657 bfd_size_type cnt_16b = 0;
7659 if (!is_ppc64_elf (ibfd))
7662 sec = bfd_get_section_by_name (ibfd, ".opd");
7663 if (sec == NULL || sec->size == 0)
7666 if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS)
7669 if (sec->output_section == bfd_abs_section_ptr)
7672 /* Look through the section relocs. */
7673 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
7677 symtab_hdr = &elf_symtab_hdr (ibfd);
7679 /* Read the relocations. */
7680 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7682 if (relstart == NULL)
7685 /* First run through the relocs to check they are sane, and to
7686 determine whether we need to edit this opd section. */
7690 relend = relstart + sec->reloc_count;
7691 for (rel = relstart; rel < relend; )
7693 enum elf_ppc64_reloc_type r_type;
7694 unsigned long r_symndx;
7696 struct elf_link_hash_entry *h;
7697 Elf_Internal_Sym *sym;
7700 /* .opd contains an array of 16 or 24 byte entries. We're
7701 only interested in the reloc pointing to a function entry
7703 offset = rel->r_offset;
7704 if (rel + 1 == relend
7705 || rel[1].r_offset != offset + 8)
7707 /* If someone messes with .opd alignment then after a
7708 "ld -r" we might have padding in the middle of .opd.
7709 Also, there's nothing to prevent someone putting
7710 something silly in .opd with the assembler. No .opd
7711 optimization for them! */
7713 (*_bfd_error_handler)
7714 (_("%B: .opd is not a regular array of opd entries"), ibfd);
7719 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
7720 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
7722 (*_bfd_error_handler)
7723 (_("%B: unexpected reloc type %u in .opd section"),
7729 r_symndx = ELF64_R_SYM (rel->r_info);
7730 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7734 if (sym_sec == NULL || sym_sec->owner == NULL)
7736 const char *sym_name;
7738 sym_name = h->root.root.string;
7740 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7743 (*_bfd_error_handler)
7744 (_("%B: undefined sym `%s' in .opd section"),
7750 /* opd entries are always for functions defined in the
7751 current input bfd. If the symbol isn't defined in the
7752 input bfd, then we won't be using the function in this
7753 bfd; It must be defined in a linkonce section in another
7754 bfd, or is weak. It's also possible that we are
7755 discarding the function due to a linker script /DISCARD/,
7756 which we test for via the output_section. */
7757 if (sym_sec->owner != ibfd
7758 || sym_sec->output_section == bfd_abs_section_ptr)
7762 if (rel + 1 == relend
7763 || (rel + 2 < relend
7764 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC))
7769 if (sec->size == offset + 24)
7774 if (sec->size == offset + 16)
7781 else if (rel + 1 < relend
7782 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
7783 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
7785 if (rel[0].r_offset == offset + 16)
7787 else if (rel[0].r_offset != offset + 24)
7794 add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0;
7796 if (!broken && (need_edit || add_aux_fields))
7798 Elf_Internal_Rela *write_rel;
7799 Elf_Internal_Shdr *rel_hdr;
7800 bfd_byte *rptr, *wptr;
7801 bfd_byte *new_contents;
7804 new_contents = NULL;
7805 amt = OPD_NDX (sec->size) * sizeof (long);
7806 opd = &ppc64_elf_section_data (sec)->u.opd;
7807 opd->adjust = bfd_zalloc (sec->owner, amt);
7808 if (opd->adjust == NULL)
7810 ppc64_elf_section_data (sec)->sec_type = sec_opd;
7812 /* This seems a waste of time as input .opd sections are all
7813 zeros as generated by gcc, but I suppose there's no reason
7814 this will always be so. We might start putting something in
7815 the third word of .opd entries. */
7816 if ((sec->flags & SEC_IN_MEMORY) == 0)
7819 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
7824 if (local_syms != NULL
7825 && symtab_hdr->contents != (unsigned char *) local_syms)
7827 if (elf_section_data (sec)->relocs != relstart)
7831 sec->contents = loc;
7832 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
7835 elf_section_data (sec)->relocs = relstart;
7837 new_contents = sec->contents;
7840 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
7841 if (new_contents == NULL)
7845 wptr = new_contents;
7846 rptr = sec->contents;
7847 write_rel = relstart;
7848 for (rel = relstart; rel < relend; )
7850 unsigned long r_symndx;
7852 struct elf_link_hash_entry *h;
7853 struct ppc_link_hash_entry *fdh = NULL;
7854 Elf_Internal_Sym *sym;
7856 Elf_Internal_Rela *next_rel;
7859 r_symndx = ELF64_R_SYM (rel->r_info);
7860 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7865 if (next_rel + 1 == relend
7866 || (next_rel + 2 < relend
7867 && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC))
7870 /* See if the .opd entry is full 24 byte or
7871 16 byte (with fd_aux entry overlapped with next
7874 if (next_rel == relend)
7876 if (sec->size == rel->r_offset + 16)
7879 else if (next_rel->r_offset == rel->r_offset + 16)
7883 && h->root.root.string[0] == '.')
7885 fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab);
7887 && fdh->elf.root.type != bfd_link_hash_defined
7888 && fdh->elf.root.type != bfd_link_hash_defweak)
7892 skip = (sym_sec->owner != ibfd
7893 || sym_sec->output_section == bfd_abs_section_ptr);
7896 if (fdh != NULL && sym_sec->owner == ibfd)
7898 /* Arrange for the function descriptor sym
7900 fdh->elf.root.u.def.value = 0;
7901 fdh->elf.root.u.def.section = sym_sec;
7903 opd->adjust[OPD_NDX (rel->r_offset)] = -1;
7905 if (NO_OPD_RELOCS || info->relocatable)
7910 if (!dec_dynrel_count (rel->r_info, sec, info,
7914 if (++rel == next_rel)
7917 r_symndx = ELF64_R_SYM (rel->r_info);
7918 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7925 /* We'll be keeping this opd entry. */
7930 /* Redefine the function descriptor symbol to
7931 this location in the opd section. It is
7932 necessary to update the value here rather
7933 than using an array of adjustments as we do
7934 for local symbols, because various places
7935 in the generic ELF code use the value
7936 stored in u.def.value. */
7937 fdh->elf.root.u.def.value = wptr - new_contents;
7938 fdh->adjust_done = 1;
7941 /* Local syms are a bit tricky. We could
7942 tweak them as they can be cached, but
7943 we'd need to look through the local syms
7944 for the function descriptor sym which we
7945 don't have at the moment. So keep an
7946 array of adjustments. */
7947 adjust = (wptr - new_contents) - (rptr - sec->contents);
7948 opd->adjust[OPD_NDX (rel->r_offset)] = adjust;
7951 memcpy (wptr, rptr, opd_ent_size);
7952 wptr += opd_ent_size;
7953 if (add_aux_fields && opd_ent_size == 16)
7955 memset (wptr, '\0', 8);
7959 /* We need to adjust any reloc offsets to point to the
7961 for ( ; rel != next_rel; ++rel)
7963 rel->r_offset += adjust;
7964 if (write_rel != rel)
7965 memcpy (write_rel, rel, sizeof (*rel));
7970 rptr += opd_ent_size;
7973 sec->size = wptr - new_contents;
7974 sec->reloc_count = write_rel - relstart;
7977 free (sec->contents);
7978 sec->contents = new_contents;
7981 /* Fudge the header size too, as this is used later in
7982 elf_bfd_final_link if we are emitting relocs. */
7983 rel_hdr = _bfd_elf_single_rel_hdr (sec);
7984 rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize;
7987 else if (elf_section_data (sec)->relocs != relstart)
7990 if (local_syms != NULL
7991 && symtab_hdr->contents != (unsigned char *) local_syms)
7993 if (!info->keep_memory)
7996 symtab_hdr->contents = (unsigned char *) local_syms;
8001 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
8003 /* If we are doing a final link and the last .opd entry is just 16 byte
8004 long, add a 8 byte padding after it. */
8005 if (need_pad != NULL && !info->relocatable)
8009 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
8011 BFD_ASSERT (need_pad->size > 0);
8013 p = bfd_malloc (need_pad->size + 8);
8017 if (! bfd_get_section_contents (need_pad->owner, need_pad,
8018 p, 0, need_pad->size))
8021 need_pad->contents = p;
8022 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
8026 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
8030 need_pad->contents = p;
8033 memset (need_pad->contents + need_pad->size, 0, 8);
8034 need_pad->size += 8;
8040 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
8043 ppc64_elf_tls_setup (struct bfd_link_info *info)
8045 struct ppc_link_hash_table *htab;
8047 htab = ppc_hash_table (info);
8051 if (abiversion (info->output_bfd) == 1)
8054 if (htab->params->no_multi_toc)
8055 htab->do_multi_toc = 0;
8056 else if (!htab->do_multi_toc)
8057 htab->params->no_multi_toc = 1;
8059 htab->tls_get_addr = ((struct ppc_link_hash_entry *)
8060 elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
8061 FALSE, FALSE, TRUE));
8062 /* Move dynamic linking info to the function descriptor sym. */
8063 if (htab->tls_get_addr != NULL)
8064 func_desc_adjust (&htab->tls_get_addr->elf, info);
8065 htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *)
8066 elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
8067 FALSE, FALSE, TRUE));
8068 if (!htab->params->no_tls_get_addr_opt)
8070 struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd;
8072 opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt",
8073 FALSE, FALSE, TRUE);
8075 func_desc_adjust (opt, info);
8076 opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
8077 FALSE, FALSE, TRUE);
8079 && (opt_fd->root.type == bfd_link_hash_defined
8080 || opt_fd->root.type == bfd_link_hash_defweak))
8082 /* If glibc supports an optimized __tls_get_addr call stub,
8083 signalled by the presence of __tls_get_addr_opt, and we'll
8084 be calling __tls_get_addr via a plt call stub, then
8085 make __tls_get_addr point to __tls_get_addr_opt. */
8086 tga_fd = &htab->tls_get_addr_fd->elf;
8087 if (htab->elf.dynamic_sections_created
8089 && (tga_fd->type == STT_FUNC
8090 || tga_fd->needs_plt)
8091 && !(SYMBOL_CALLS_LOCAL (info, tga_fd)
8092 || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT
8093 && tga_fd->root.type == bfd_link_hash_undefweak)))
8095 struct plt_entry *ent;
8097 for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next)
8098 if (ent->plt.refcount > 0)
8102 tga_fd->root.type = bfd_link_hash_indirect;
8103 tga_fd->root.u.i.link = &opt_fd->root;
8104 ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd);
8105 if (opt_fd->dynindx != -1)
8107 /* Use __tls_get_addr_opt in dynamic relocations. */
8108 opt_fd->dynindx = -1;
8109 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
8110 opt_fd->dynstr_index);
8111 if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd))
8114 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd;
8115 tga = &htab->tls_get_addr->elf;
8116 if (opt != NULL && tga != NULL)
8118 tga->root.type = bfd_link_hash_indirect;
8119 tga->root.u.i.link = &opt->root;
8120 ppc64_elf_copy_indirect_symbol (info, opt, tga);
8121 _bfd_elf_link_hash_hide_symbol (info, opt,
8123 htab->tls_get_addr = (struct ppc_link_hash_entry *) opt;
8125 htab->tls_get_addr_fd->oh = htab->tls_get_addr;
8126 htab->tls_get_addr_fd->is_func_descriptor = 1;
8127 if (htab->tls_get_addr != NULL)
8129 htab->tls_get_addr->oh = htab->tls_get_addr_fd;
8130 htab->tls_get_addr->is_func = 1;
8136 htab->params->no_tls_get_addr_opt = TRUE;
8138 return _bfd_elf_tls_setup (info->output_bfd, info);
8141 /* Return TRUE iff REL is a branch reloc with a global symbol matching
8145 branch_reloc_hash_match (const bfd *ibfd,
8146 const Elf_Internal_Rela *rel,
8147 const struct ppc_link_hash_entry *hash1,
8148 const struct ppc_link_hash_entry *hash2)
8150 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
8151 enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info);
8152 unsigned int r_symndx = ELF64_R_SYM (rel->r_info);
8154 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
8156 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
8157 struct elf_link_hash_entry *h;
8159 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8160 h = elf_follow_link (h);
8161 if (h == &hash1->elf || h == &hash2->elf)
8167 /* Run through all the TLS relocs looking for optimization
8168 opportunities. The linker has been hacked (see ppc64elf.em) to do
8169 a preliminary section layout so that we know the TLS segment
8170 offsets. We can't optimize earlier because some optimizations need
8171 to know the tp offset, and we need to optimize before allocating
8172 dynamic relocations. */
8175 ppc64_elf_tls_optimize (struct bfd_link_info *info)
8179 struct ppc_link_hash_table *htab;
8180 unsigned char *toc_ref;
8183 if (info->relocatable || !info->executable)
8186 htab = ppc_hash_table (info);
8190 /* Make two passes over the relocs. On the first pass, mark toc
8191 entries involved with tls relocs, and check that tls relocs
8192 involved in setting up a tls_get_addr call are indeed followed by
8193 such a call. If they are not, we can't do any tls optimization.
8194 On the second pass twiddle tls_mask flags to notify
8195 relocate_section that optimization can be done, and adjust got
8196 and plt refcounts. */
8198 for (pass = 0; pass < 2; ++pass)
8199 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
8201 Elf_Internal_Sym *locsyms = NULL;
8202 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
8204 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8205 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
8207 Elf_Internal_Rela *relstart, *rel, *relend;
8208 bfd_boolean found_tls_get_addr_arg = 0;
8210 /* Read the relocations. */
8211 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8213 if (relstart == NULL)
8219 relend = relstart + sec->reloc_count;
8220 for (rel = relstart; rel < relend; rel++)
8222 enum elf_ppc64_reloc_type r_type;
8223 unsigned long r_symndx;
8224 struct elf_link_hash_entry *h;
8225 Elf_Internal_Sym *sym;
8227 unsigned char *tls_mask;
8228 unsigned char tls_set, tls_clear, tls_type = 0;
8230 bfd_boolean ok_tprel, is_local;
8231 long toc_ref_index = 0;
8232 int expecting_tls_get_addr = 0;
8233 bfd_boolean ret = FALSE;
8235 r_symndx = ELF64_R_SYM (rel->r_info);
8236 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
8240 if (elf_section_data (sec)->relocs != relstart)
8242 if (toc_ref != NULL)
8245 && (elf_symtab_hdr (ibfd).contents
8246 != (unsigned char *) locsyms))
8253 if (h->root.type == bfd_link_hash_defined
8254 || h->root.type == bfd_link_hash_defweak)
8255 value = h->root.u.def.value;
8256 else if (h->root.type == bfd_link_hash_undefweak)
8260 found_tls_get_addr_arg = 0;
8265 /* Symbols referenced by TLS relocs must be of type
8266 STT_TLS. So no need for .opd local sym adjust. */
8267 value = sym->st_value;
8276 && h->root.type == bfd_link_hash_undefweak)
8280 value += sym_sec->output_offset;
8281 value += sym_sec->output_section->vma;
8282 value -= htab->elf.tls_sec->vma;
8283 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
8284 < (bfd_vma) 1 << 32);
8288 r_type = ELF64_R_TYPE (rel->r_info);
8289 /* If this section has old-style __tls_get_addr calls
8290 without marker relocs, then check that each
8291 __tls_get_addr call reloc is preceded by a reloc
8292 that conceivably belongs to the __tls_get_addr arg
8293 setup insn. If we don't find matching arg setup
8294 relocs, don't do any tls optimization. */
8296 && sec->has_tls_get_addr_call
8298 && (h == &htab->tls_get_addr->elf
8299 || h == &htab->tls_get_addr_fd->elf)
8300 && !found_tls_get_addr_arg
8301 && is_branch_reloc (r_type))
8303 info->callbacks->minfo (_("%H __tls_get_addr lost arg, "
8304 "TLS optimization disabled\n"),
8305 ibfd, sec, rel->r_offset);
8310 found_tls_get_addr_arg = 0;
8313 case R_PPC64_GOT_TLSLD16:
8314 case R_PPC64_GOT_TLSLD16_LO:
8315 expecting_tls_get_addr = 1;
8316 found_tls_get_addr_arg = 1;
8319 case R_PPC64_GOT_TLSLD16_HI:
8320 case R_PPC64_GOT_TLSLD16_HA:
8321 /* These relocs should never be against a symbol
8322 defined in a shared lib. Leave them alone if
8323 that turns out to be the case. */
8330 tls_type = TLS_TLS | TLS_LD;
8333 case R_PPC64_GOT_TLSGD16:
8334 case R_PPC64_GOT_TLSGD16_LO:
8335 expecting_tls_get_addr = 1;
8336 found_tls_get_addr_arg = 1;
8339 case R_PPC64_GOT_TLSGD16_HI:
8340 case R_PPC64_GOT_TLSGD16_HA:
8346 tls_set = TLS_TLS | TLS_TPRELGD;
8348 tls_type = TLS_TLS | TLS_GD;
8351 case R_PPC64_GOT_TPREL16_DS:
8352 case R_PPC64_GOT_TPREL16_LO_DS:
8353 case R_PPC64_GOT_TPREL16_HI:
8354 case R_PPC64_GOT_TPREL16_HA:
8359 tls_clear = TLS_TPREL;
8360 tls_type = TLS_TLS | TLS_TPREL;
8367 found_tls_get_addr_arg = 1;
8372 case R_PPC64_TOC16_LO:
8373 if (sym_sec == NULL || sym_sec != toc)
8376 /* Mark this toc entry as referenced by a TLS
8377 code sequence. We can do that now in the
8378 case of R_PPC64_TLS, and after checking for
8379 tls_get_addr for the TOC16 relocs. */
8380 if (toc_ref == NULL)
8381 toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8);
8382 if (toc_ref == NULL)
8386 value = h->root.u.def.value;
8388 value = sym->st_value;
8389 value += rel->r_addend;
8392 BFD_ASSERT (value < toc->size
8393 && toc->output_offset % 8 == 0);
8394 toc_ref_index = (value + toc->output_offset) / 8;
8395 if (r_type == R_PPC64_TLS
8396 || r_type == R_PPC64_TLSGD
8397 || r_type == R_PPC64_TLSLD)
8399 toc_ref[toc_ref_index] = 1;
8403 if (pass != 0 && toc_ref[toc_ref_index] == 0)
8408 expecting_tls_get_addr = 2;
8411 case R_PPC64_TPREL64:
8415 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
8420 tls_set = TLS_EXPLICIT;
8421 tls_clear = TLS_TPREL;
8426 case R_PPC64_DTPMOD64:
8430 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
8432 if (rel + 1 < relend
8434 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
8435 && rel[1].r_offset == rel->r_offset + 8)
8439 tls_set = TLS_EXPLICIT | TLS_GD;
8442 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
8451 tls_set = TLS_EXPLICIT;
8462 if (!expecting_tls_get_addr
8463 || !sec->has_tls_get_addr_call)
8466 if (rel + 1 < relend
8467 && branch_reloc_hash_match (ibfd, rel + 1,
8469 htab->tls_get_addr_fd))
8471 if (expecting_tls_get_addr == 2)
8473 /* Check for toc tls entries. */
8474 unsigned char *toc_tls;
8477 retval = get_tls_mask (&toc_tls, NULL, NULL,
8482 if (toc_tls != NULL)
8484 if ((*toc_tls & (TLS_GD | TLS_LD)) != 0)
8485 found_tls_get_addr_arg = 1;
8487 toc_ref[toc_ref_index] = 1;
8493 if (expecting_tls_get_addr != 1)
8496 /* Uh oh, we didn't find the expected call. We
8497 could just mark this symbol to exclude it
8498 from tls optimization but it's safer to skip
8499 the entire optimization. */
8500 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
8501 "TLS optimization disabled\n"),
8502 ibfd, sec, rel->r_offset);
8507 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
8509 struct plt_entry *ent;
8510 for (ent = htab->tls_get_addr->elf.plt.plist;
8513 if (ent->addend == 0)
8515 if (ent->plt.refcount > 0)
8517 ent->plt.refcount -= 1;
8518 expecting_tls_get_addr = 0;
8524 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
8526 struct plt_entry *ent;
8527 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
8530 if (ent->addend == 0)
8532 if (ent->plt.refcount > 0)
8533 ent->plt.refcount -= 1;
8541 if ((tls_set & TLS_EXPLICIT) == 0)
8543 struct got_entry *ent;
8545 /* Adjust got entry for this reloc. */
8549 ent = elf_local_got_ents (ibfd)[r_symndx];
8551 for (; ent != NULL; ent = ent->next)
8552 if (ent->addend == rel->r_addend
8553 && ent->owner == ibfd
8554 && ent->tls_type == tls_type)
8561 /* We managed to get rid of a got entry. */
8562 if (ent->got.refcount > 0)
8563 ent->got.refcount -= 1;
8568 /* If we got rid of a DTPMOD/DTPREL reloc pair then
8569 we'll lose one or two dyn relocs. */
8570 if (!dec_dynrel_count (rel->r_info, sec, info,
8574 if (tls_set == (TLS_EXPLICIT | TLS_GD))
8576 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
8582 *tls_mask |= tls_set;
8583 *tls_mask &= ~tls_clear;
8586 if (elf_section_data (sec)->relocs != relstart)
8591 && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms))
8593 if (!info->keep_memory)
8596 elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms;
8600 if (toc_ref != NULL)
8605 /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
8606 the values of any global symbols in a toc section that has been
8607 edited. Globals in toc sections should be a rarity, so this function
8608 sets a flag if any are found in toc sections other than the one just
8609 edited, so that futher hash table traversals can be avoided. */
8611 struct adjust_toc_info
8614 unsigned long *skip;
8615 bfd_boolean global_toc_syms;
8618 enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 };
8621 adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
8623 struct ppc_link_hash_entry *eh;
8624 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
8627 if (h->root.type != bfd_link_hash_defined
8628 && h->root.type != bfd_link_hash_defweak)
8631 eh = (struct ppc_link_hash_entry *) h;
8632 if (eh->adjust_done)
8635 if (eh->elf.root.u.def.section == toc_inf->toc)
8637 if (eh->elf.root.u.def.value > toc_inf->toc->rawsize)
8638 i = toc_inf->toc->rawsize >> 3;
8640 i = eh->elf.root.u.def.value >> 3;
8642 if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0)
8644 (*_bfd_error_handler)
8645 (_("%s defined on removed toc entry"), eh->elf.root.root.string);
8648 while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0);
8649 eh->elf.root.u.def.value = (bfd_vma) i << 3;
8652 eh->elf.root.u.def.value -= toc_inf->skip[i];
8653 eh->adjust_done = 1;
8655 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
8656 toc_inf->global_toc_syms = TRUE;
8661 /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */
8664 ok_lo_toc_insn (unsigned int insn)
8666 return ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8667 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8668 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8669 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8670 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8671 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8672 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8673 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8674 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8675 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8676 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8677 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8678 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8679 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8680 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8682 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8683 && ((insn & 3) == 0 || (insn & 3) == 3))
8684 || (insn & (0x3f << 26)) == 12u << 26 /* addic */);
8687 /* Examine all relocs referencing .toc sections in order to remove
8688 unused .toc entries. */
8691 ppc64_elf_edit_toc (struct bfd_link_info *info)
8694 struct adjust_toc_info toc_inf;
8695 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8697 htab->do_toc_opt = 1;
8698 toc_inf.global_toc_syms = TRUE;
8699 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
8701 asection *toc, *sec;
8702 Elf_Internal_Shdr *symtab_hdr;
8703 Elf_Internal_Sym *local_syms;
8704 Elf_Internal_Rela *relstart, *rel, *toc_relocs;
8705 unsigned long *skip, *drop;
8706 unsigned char *used;
8707 unsigned char *keep, last, some_unused;
8709 if (!is_ppc64_elf (ibfd))
8712 toc = bfd_get_section_by_name (ibfd, ".toc");
8715 || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS
8716 || discarded_section (toc))
8721 symtab_hdr = &elf_symtab_hdr (ibfd);
8723 /* Look at sections dropped from the final link. */
8726 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8728 if (sec->reloc_count == 0
8729 || !discarded_section (sec)
8730 || get_opd_info (sec)
8731 || (sec->flags & SEC_ALLOC) == 0
8732 || (sec->flags & SEC_DEBUGGING) != 0)
8735 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
8736 if (relstart == NULL)
8739 /* Run through the relocs to see which toc entries might be
8741 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8743 enum elf_ppc64_reloc_type r_type;
8744 unsigned long r_symndx;
8746 struct elf_link_hash_entry *h;
8747 Elf_Internal_Sym *sym;
8750 r_type = ELF64_R_TYPE (rel->r_info);
8757 case R_PPC64_TOC16_LO:
8758 case R_PPC64_TOC16_HI:
8759 case R_PPC64_TOC16_HA:
8760 case R_PPC64_TOC16_DS:
8761 case R_PPC64_TOC16_LO_DS:
8765 r_symndx = ELF64_R_SYM (rel->r_info);
8766 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8774 val = h->root.u.def.value;
8776 val = sym->st_value;
8777 val += rel->r_addend;
8779 if (val >= toc->size)
8782 /* Anything in the toc ought to be aligned to 8 bytes.
8783 If not, don't mark as unused. */
8789 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
8794 skip[val >> 3] = ref_from_discarded;
8797 if (elf_section_data (sec)->relocs != relstart)
8801 /* For largetoc loads of address constants, we can convert
8802 . addis rx,2,addr@got@ha
8803 . ld ry,addr@got@l(rx)
8805 . addis rx,2,addr@toc@ha
8806 . addi ry,rx,addr@toc@l
8807 when addr is within 2G of the toc pointer. This then means
8808 that the word storing "addr" in the toc is no longer needed. */
8810 if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc
8811 && toc->output_section->rawsize < (bfd_vma) 1 << 31
8812 && toc->reloc_count != 0)
8814 /* Read toc relocs. */
8815 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
8817 if (toc_relocs == NULL)
8820 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
8822 enum elf_ppc64_reloc_type r_type;
8823 unsigned long r_symndx;
8825 struct elf_link_hash_entry *h;
8826 Elf_Internal_Sym *sym;
8829 r_type = ELF64_R_TYPE (rel->r_info);
8830 if (r_type != R_PPC64_ADDR64)
8833 r_symndx = ELF64_R_SYM (rel->r_info);
8834 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8839 || discarded_section (sym_sec))
8842 if (!SYMBOL_REFERENCES_LOCAL (info, h))
8847 if (h->type == STT_GNU_IFUNC)
8849 val = h->root.u.def.value;
8853 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
8855 val = sym->st_value;
8857 val += rel->r_addend;
8858 val += sym_sec->output_section->vma + sym_sec->output_offset;
8860 /* We don't yet know the exact toc pointer value, but we
8861 know it will be somewhere in the toc section. Don't
8862 optimize if the difference from any possible toc
8863 pointer is outside [ff..f80008000, 7fff7fff]. */
8864 addr = toc->output_section->vma + TOC_BASE_OFF;
8865 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
8868 addr = toc->output_section->vma + toc->output_section->rawsize;
8869 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
8874 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
8879 skip[rel->r_offset >> 3]
8880 |= can_optimize | ((rel - toc_relocs) << 2);
8887 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
8891 if (local_syms != NULL
8892 && symtab_hdr->contents != (unsigned char *) local_syms)
8896 && elf_section_data (sec)->relocs != relstart)
8898 if (toc_relocs != NULL
8899 && elf_section_data (toc)->relocs != toc_relocs)
8906 /* Now check all kept sections that might reference the toc.
8907 Check the toc itself last. */
8908 for (sec = (ibfd->sections == toc && toc->next ? toc->next
8911 sec = (sec == toc ? NULL
8912 : sec->next == NULL ? toc
8913 : sec->next == toc && toc->next ? toc->next
8918 if (sec->reloc_count == 0
8919 || discarded_section (sec)
8920 || get_opd_info (sec)
8921 || (sec->flags & SEC_ALLOC) == 0
8922 || (sec->flags & SEC_DEBUGGING) != 0)
8925 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8927 if (relstart == NULL)
8933 /* Mark toc entries referenced as used. */
8937 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8939 enum elf_ppc64_reloc_type r_type;
8940 unsigned long r_symndx;
8942 struct elf_link_hash_entry *h;
8943 Elf_Internal_Sym *sym;
8945 enum {no_check, check_lo, check_ha} insn_check;
8947 r_type = ELF64_R_TYPE (rel->r_info);
8951 insn_check = no_check;
8954 case R_PPC64_GOT_TLSLD16_HA:
8955 case R_PPC64_GOT_TLSGD16_HA:
8956 case R_PPC64_GOT_TPREL16_HA:
8957 case R_PPC64_GOT_DTPREL16_HA:
8958 case R_PPC64_GOT16_HA:
8959 case R_PPC64_TOC16_HA:
8960 insn_check = check_ha;
8963 case R_PPC64_GOT_TLSLD16_LO:
8964 case R_PPC64_GOT_TLSGD16_LO:
8965 case R_PPC64_GOT_TPREL16_LO_DS:
8966 case R_PPC64_GOT_DTPREL16_LO_DS:
8967 case R_PPC64_GOT16_LO:
8968 case R_PPC64_GOT16_LO_DS:
8969 case R_PPC64_TOC16_LO:
8970 case R_PPC64_TOC16_LO_DS:
8971 insn_check = check_lo;
8975 if (insn_check != no_check)
8977 bfd_vma off = rel->r_offset & ~3;
8978 unsigned char buf[4];
8981 if (!bfd_get_section_contents (ibfd, sec, buf, off, 4))
8986 insn = bfd_get_32 (ibfd, buf);
8987 if (insn_check == check_lo
8988 ? !ok_lo_toc_insn (insn)
8989 : ((insn & ((0x3f << 26) | 0x1f << 16))
8990 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */))
8994 ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1;
8995 sprintf (str, "%#08x", insn);
8996 info->callbacks->einfo
8997 (_("%P: %H: toc optimization is not supported for"
8998 " %s instruction.\n"),
8999 ibfd, sec, rel->r_offset & ~3, str);
9006 case R_PPC64_TOC16_LO:
9007 case R_PPC64_TOC16_HI:
9008 case R_PPC64_TOC16_HA:
9009 case R_PPC64_TOC16_DS:
9010 case R_PPC64_TOC16_LO_DS:
9011 /* In case we're taking addresses of toc entries. */
9012 case R_PPC64_ADDR64:
9019 r_symndx = ELF64_R_SYM (rel->r_info);
9020 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9031 val = h->root.u.def.value;
9033 val = sym->st_value;
9034 val += rel->r_addend;
9036 if (val >= toc->size)
9039 if ((skip[val >> 3] & can_optimize) != 0)
9046 case R_PPC64_TOC16_HA:
9049 case R_PPC64_TOC16_LO_DS:
9050 off = rel->r_offset;
9051 off += (bfd_big_endian (ibfd) ? -2 : 3);
9052 if (!bfd_get_section_contents (ibfd, sec, &opc,
9058 if ((opc & (0x3f << 2)) == (58u << 2))
9063 /* Wrong sort of reloc, or not a ld. We may
9064 as well clear ref_from_discarded too. */
9071 /* For the toc section, we only mark as used if this
9072 entry itself isn't unused. */
9073 else if ((used[rel->r_offset >> 3]
9074 || !(skip[rel->r_offset >> 3] & ref_from_discarded))
9077 /* Do all the relocs again, to catch reference
9086 if (elf_section_data (sec)->relocs != relstart)
9090 /* Merge the used and skip arrays. Assume that TOC
9091 doublewords not appearing as either used or unused belong
9092 to to an entry more than one doubleword in size. */
9093 for (drop = skip, keep = used, last = 0, some_unused = 0;
9094 drop < skip + (toc->size + 7) / 8;
9099 *drop &= ~ref_from_discarded;
9100 if ((*drop & can_optimize) != 0)
9104 else if ((*drop & ref_from_discarded) != 0)
9107 last = ref_from_discarded;
9117 bfd_byte *contents, *src;
9119 Elf_Internal_Sym *sym;
9120 bfd_boolean local_toc_syms = FALSE;
9122 /* Shuffle the toc contents, and at the same time convert the
9123 skip array from booleans into offsets. */
9124 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
9127 elf_section_data (toc)->this_hdr.contents = contents;
9129 for (src = contents, off = 0, drop = skip;
9130 src < contents + toc->size;
9133 if ((*drop & (can_optimize | ref_from_discarded)) != 0)
9138 memcpy (src - off, src, 8);
9142 toc->rawsize = toc->size;
9143 toc->size = src - contents - off;
9145 /* Adjust addends for relocs against the toc section sym,
9146 and optimize any accesses we can. */
9147 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
9149 if (sec->reloc_count == 0
9150 || discarded_section (sec))
9153 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
9155 if (relstart == NULL)
9158 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
9160 enum elf_ppc64_reloc_type r_type;
9161 unsigned long r_symndx;
9163 struct elf_link_hash_entry *h;
9166 r_type = ELF64_R_TYPE (rel->r_info);
9173 case R_PPC64_TOC16_LO:
9174 case R_PPC64_TOC16_HI:
9175 case R_PPC64_TOC16_HA:
9176 case R_PPC64_TOC16_DS:
9177 case R_PPC64_TOC16_LO_DS:
9178 case R_PPC64_ADDR64:
9182 r_symndx = ELF64_R_SYM (rel->r_info);
9183 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9191 val = h->root.u.def.value;
9194 val = sym->st_value;
9196 local_toc_syms = TRUE;
9199 val += rel->r_addend;
9201 if (val > toc->rawsize)
9203 else if ((skip[val >> 3] & ref_from_discarded) != 0)
9205 else if ((skip[val >> 3] & can_optimize) != 0)
9207 Elf_Internal_Rela *tocrel
9208 = toc_relocs + (skip[val >> 3] >> 2);
9209 unsigned long tsym = ELF64_R_SYM (tocrel->r_info);
9213 case R_PPC64_TOC16_HA:
9214 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA);
9217 case R_PPC64_TOC16_LO_DS:
9218 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT);
9222 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
9224 info->callbacks->einfo
9225 (_("%P: %H: %s references "
9226 "optimized away TOC entry\n"),
9227 ibfd, sec, rel->r_offset,
9228 ppc64_elf_howto_table[r_type]->name);
9229 bfd_set_error (bfd_error_bad_value);
9232 rel->r_addend = tocrel->r_addend;
9233 elf_section_data (sec)->relocs = relstart;
9237 if (h != NULL || sym->st_value != 0)
9240 rel->r_addend -= skip[val >> 3];
9241 elf_section_data (sec)->relocs = relstart;
9244 if (elf_section_data (sec)->relocs != relstart)
9248 /* We shouldn't have local or global symbols defined in the TOC,
9249 but handle them anyway. */
9250 if (local_syms != NULL)
9251 for (sym = local_syms;
9252 sym < local_syms + symtab_hdr->sh_info;
9254 if (sym->st_value != 0
9255 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
9259 if (sym->st_value > toc->rawsize)
9260 i = toc->rawsize >> 3;
9262 i = sym->st_value >> 3;
9264 if ((skip[i] & (ref_from_discarded | can_optimize)) != 0)
9267 (*_bfd_error_handler)
9268 (_("%s defined on removed toc entry"),
9269 bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL));
9272 while ((skip[i] & (ref_from_discarded | can_optimize)));
9273 sym->st_value = (bfd_vma) i << 3;
9276 sym->st_value -= skip[i];
9277 symtab_hdr->contents = (unsigned char *) local_syms;
9280 /* Adjust any global syms defined in this toc input section. */
9281 if (toc_inf.global_toc_syms)
9284 toc_inf.skip = skip;
9285 toc_inf.global_toc_syms = FALSE;
9286 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
9290 if (toc->reloc_count != 0)
9292 Elf_Internal_Shdr *rel_hdr;
9293 Elf_Internal_Rela *wrel;
9296 /* Remove unused toc relocs, and adjust those we keep. */
9297 if (toc_relocs == NULL)
9298 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
9300 if (toc_relocs == NULL)
9304 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
9305 if ((skip[rel->r_offset >> 3]
9306 & (ref_from_discarded | can_optimize)) == 0)
9308 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
9309 wrel->r_info = rel->r_info;
9310 wrel->r_addend = rel->r_addend;
9313 else if (!dec_dynrel_count (rel->r_info, toc, info,
9314 &local_syms, NULL, NULL))
9317 elf_section_data (toc)->relocs = toc_relocs;
9318 toc->reloc_count = wrel - toc_relocs;
9319 rel_hdr = _bfd_elf_single_rel_hdr (toc);
9320 sz = rel_hdr->sh_entsize;
9321 rel_hdr->sh_size = toc->reloc_count * sz;
9324 else if (toc_relocs != NULL
9325 && elf_section_data (toc)->relocs != toc_relocs)
9328 if (local_syms != NULL
9329 && symtab_hdr->contents != (unsigned char *) local_syms)
9331 if (!info->keep_memory)
9334 symtab_hdr->contents = (unsigned char *) local_syms;
9342 /* Return true iff input section I references the TOC using
9343 instructions limited to +/-32k offsets. */
9346 ppc64_elf_has_small_toc_reloc (asection *i)
9348 return (is_ppc64_elf (i->owner)
9349 && ppc64_elf_tdata (i->owner)->has_small_toc_reloc);
9352 /* Allocate space for one GOT entry. */
9355 allocate_got (struct elf_link_hash_entry *h,
9356 struct bfd_link_info *info,
9357 struct got_entry *gent)
9359 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9361 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
9362 int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)
9364 int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD
9365 ? 2 : 1) * sizeof (Elf64_External_Rela);
9366 asection *got = ppc64_elf_tdata (gent->owner)->got;
9368 gent->got.offset = got->size;
9369 got->size += entsize;
9371 dyn = htab->elf.dynamic_sections_created;
9372 if (h->type == STT_GNU_IFUNC)
9374 htab->elf.irelplt->size += rentsize;
9375 htab->got_reli_size += rentsize;
9377 else if ((info->shared
9378 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
9379 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
9380 || h->root.type != bfd_link_hash_undefweak))
9382 asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
9383 relgot->size += rentsize;
9387 /* This function merges got entries in the same toc group. */
9390 merge_got_entries (struct got_entry **pent)
9392 struct got_entry *ent, *ent2;
9394 for (ent = *pent; ent != NULL; ent = ent->next)
9395 if (!ent->is_indirect)
9396 for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next)
9397 if (!ent2->is_indirect
9398 && ent2->addend == ent->addend
9399 && ent2->tls_type == ent->tls_type
9400 && elf_gp (ent2->owner) == elf_gp (ent->owner))
9402 ent2->is_indirect = TRUE;
9403 ent2->got.ent = ent;
9407 /* Allocate space in .plt, .got and associated reloc sections for
9411 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
9413 struct bfd_link_info *info;
9414 struct ppc_link_hash_table *htab;
9416 struct ppc_link_hash_entry *eh;
9417 struct elf_dyn_relocs *p;
9418 struct got_entry **pgent, *gent;
9420 if (h->root.type == bfd_link_hash_indirect)
9423 info = (struct bfd_link_info *) inf;
9424 htab = ppc_hash_table (info);
9428 if ((htab->elf.dynamic_sections_created
9430 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
9431 || h->type == STT_GNU_IFUNC)
9433 struct plt_entry *pent;
9434 bfd_boolean doneone = FALSE;
9435 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9436 if (pent->plt.refcount > 0)
9438 if (!htab->elf.dynamic_sections_created
9439 || h->dynindx == -1)
9442 pent->plt.offset = s->size;
9443 s->size += PLT_ENTRY_SIZE (htab);
9444 s = htab->elf.irelplt;
9448 /* If this is the first .plt entry, make room for the special
9452 s->size += PLT_INITIAL_ENTRY_SIZE (htab);
9454 pent->plt.offset = s->size;
9456 /* Make room for this entry. */
9457 s->size += PLT_ENTRY_SIZE (htab);
9459 /* Make room for the .glink code. */
9462 s->size += GLINK_CALL_STUB_SIZE;
9465 /* We need bigger stubs past index 32767. */
9466 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
9473 /* We also need to make an entry in the .rela.plt section. */
9474 s = htab->elf.srelplt;
9476 s->size += sizeof (Elf64_External_Rela);
9480 pent->plt.offset = (bfd_vma) -1;
9483 h->plt.plist = NULL;
9489 h->plt.plist = NULL;
9493 eh = (struct ppc_link_hash_entry *) h;
9494 /* Run through the TLS GD got entries first if we're changing them
9496 if ((eh->tls_mask & TLS_TPRELGD) != 0)
9497 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9498 if (gent->got.refcount > 0
9499 && (gent->tls_type & TLS_GD) != 0)
9501 /* This was a GD entry that has been converted to TPREL. If
9502 there happens to be a TPREL entry we can use that one. */
9503 struct got_entry *ent;
9504 for (ent = h->got.glist; ent != NULL; ent = ent->next)
9505 if (ent->got.refcount > 0
9506 && (ent->tls_type & TLS_TPREL) != 0
9507 && ent->addend == gent->addend
9508 && ent->owner == gent->owner)
9510 gent->got.refcount = 0;
9514 /* If not, then we'll be using our own TPREL entry. */
9515 if (gent->got.refcount != 0)
9516 gent->tls_type = TLS_TLS | TLS_TPREL;
9519 /* Remove any list entry that won't generate a word in the GOT before
9520 we call merge_got_entries. Otherwise we risk merging to empty
9522 pgent = &h->got.glist;
9523 while ((gent = *pgent) != NULL)
9524 if (gent->got.refcount > 0)
9526 if ((gent->tls_type & TLS_LD) != 0
9529 ppc64_tlsld_got (gent->owner)->got.refcount += 1;
9530 *pgent = gent->next;
9533 pgent = &gent->next;
9536 *pgent = gent->next;
9538 if (!htab->do_multi_toc)
9539 merge_got_entries (&h->got.glist);
9541 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9542 if (!gent->is_indirect)
9544 /* Make sure this symbol is output as a dynamic symbol.
9545 Undefined weak syms won't yet be marked as dynamic,
9546 nor will all TLS symbols. */
9547 if (h->dynindx == -1
9549 && h->type != STT_GNU_IFUNC
9550 && htab->elf.dynamic_sections_created)
9552 if (! bfd_elf_link_record_dynamic_symbol (info, h))
9556 if (!is_ppc64_elf (gent->owner))
9559 allocate_got (h, info, gent);
9562 if (eh->dyn_relocs == NULL
9563 || (!htab->elf.dynamic_sections_created
9564 && h->type != STT_GNU_IFUNC))
9567 /* In the shared -Bsymbolic case, discard space allocated for
9568 dynamic pc-relative relocs against symbols which turn out to be
9569 defined in regular objects. For the normal shared case, discard
9570 space for relocs that have become local due to symbol visibility
9575 /* Relocs that use pc_count are those that appear on a call insn,
9576 or certain REL relocs (see must_be_dyn_reloc) that can be
9577 generated via assembly. We want calls to protected symbols to
9578 resolve directly to the function rather than going via the plt.
9579 If people want function pointer comparisons to work as expected
9580 then they should avoid writing weird assembly. */
9581 if (SYMBOL_CALLS_LOCAL (info, h))
9583 struct elf_dyn_relocs **pp;
9585 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
9587 p->count -= p->pc_count;
9596 /* Also discard relocs on undefined weak syms with non-default
9598 if (eh->dyn_relocs != NULL
9599 && h->root.type == bfd_link_hash_undefweak)
9601 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
9602 eh->dyn_relocs = NULL;
9604 /* Make sure this symbol is output as a dynamic symbol.
9605 Undefined weak syms won't yet be marked as dynamic. */
9606 else if (h->dynindx == -1
9607 && !h->forced_local)
9609 if (! bfd_elf_link_record_dynamic_symbol (info, h))
9614 else if (h->type == STT_GNU_IFUNC)
9616 if (!h->non_got_ref)
9617 eh->dyn_relocs = NULL;
9619 else if (ELIMINATE_COPY_RELOCS)
9621 /* For the non-shared case, discard space for relocs against
9622 symbols which turn out to need copy relocs or are not
9628 /* Make sure this symbol is output as a dynamic symbol.
9629 Undefined weak syms won't yet be marked as dynamic. */
9630 if (h->dynindx == -1
9631 && !h->forced_local)
9633 if (! bfd_elf_link_record_dynamic_symbol (info, h))
9637 /* If that succeeded, we know we'll be keeping all the
9639 if (h->dynindx != -1)
9643 eh->dyn_relocs = NULL;
9648 /* Finally, allocate space. */
9649 for (p = eh->dyn_relocs; p != NULL; p = p->next)
9651 asection *sreloc = elf_section_data (p->sec)->sreloc;
9652 if (eh->elf.type == STT_GNU_IFUNC)
9653 sreloc = htab->elf.irelplt;
9654 sreloc->size += p->count * sizeof (Elf64_External_Rela);
9660 /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections
9661 to set up space for global entry stubs. These are put in glink,
9662 after the branch table. */
9665 size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
9667 struct bfd_link_info *info;
9668 struct ppc_link_hash_table *htab;
9669 struct plt_entry *pent;
9672 if (h->root.type == bfd_link_hash_indirect)
9675 if (!h->pointer_equality_needed)
9682 htab = ppc_hash_table (info);
9687 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9688 if (pent->plt.offset != (bfd_vma) -1
9689 && pent->addend == 0)
9691 /* For ELFv2, if this symbol is not defined in a regular file
9692 and we are not generating a shared library or pie, then we
9693 need to define the symbol in the executable on a call stub.
9694 This is to avoid text relocations. */
9695 s->size = (s->size + 15) & -16;
9696 h->root.u.def.section = s;
9697 h->root.u.def.value = s->size;
9704 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
9705 read-only sections. */
9708 maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
9710 if (h->root.type == bfd_link_hash_indirect)
9713 if (readonly_dynrelocs (h))
9715 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
9717 /* Not an error, just cut short the traversal. */
9723 /* Set the sizes of the dynamic sections. */
9726 ppc64_elf_size_dynamic_sections (bfd *output_bfd,
9727 struct bfd_link_info *info)
9729 struct ppc_link_hash_table *htab;
9734 struct got_entry *first_tlsld;
9736 htab = ppc_hash_table (info);
9740 dynobj = htab->elf.dynobj;
9744 if (htab->elf.dynamic_sections_created)
9746 /* Set the contents of the .interp section to the interpreter. */
9747 if (info->executable)
9749 s = bfd_get_linker_section (dynobj, ".interp");
9752 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
9753 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
9757 /* Set up .got offsets for local syms, and space for local dynamic
9759 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
9761 struct got_entry **lgot_ents;
9762 struct got_entry **end_lgot_ents;
9763 struct plt_entry **local_plt;
9764 struct plt_entry **end_local_plt;
9765 unsigned char *lgot_masks;
9766 bfd_size_type locsymcount;
9767 Elf_Internal_Shdr *symtab_hdr;
9769 if (!is_ppc64_elf (ibfd))
9772 for (s = ibfd->sections; s != NULL; s = s->next)
9774 struct ppc_dyn_relocs *p;
9776 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
9778 if (!bfd_is_abs_section (p->sec)
9779 && bfd_is_abs_section (p->sec->output_section))
9781 /* Input section has been discarded, either because
9782 it is a copy of a linkonce section or due to
9783 linker script /DISCARD/, so we'll be discarding
9786 else if (p->count != 0)
9788 asection *srel = elf_section_data (p->sec)->sreloc;
9790 srel = htab->elf.irelplt;
9791 srel->size += p->count * sizeof (Elf64_External_Rela);
9792 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
9793 info->flags |= DF_TEXTREL;
9798 lgot_ents = elf_local_got_ents (ibfd);
9802 symtab_hdr = &elf_symtab_hdr (ibfd);
9803 locsymcount = symtab_hdr->sh_info;
9804 end_lgot_ents = lgot_ents + locsymcount;
9805 local_plt = (struct plt_entry **) end_lgot_ents;
9806 end_local_plt = local_plt + locsymcount;
9807 lgot_masks = (unsigned char *) end_local_plt;
9808 s = ppc64_elf_tdata (ibfd)->got;
9809 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
9811 struct got_entry **pent, *ent;
9814 while ((ent = *pent) != NULL)
9815 if (ent->got.refcount > 0)
9817 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
9819 ppc64_tlsld_got (ibfd)->got.refcount += 1;
9824 unsigned int ent_size = 8;
9825 unsigned int rel_size = sizeof (Elf64_External_Rela);
9827 ent->got.offset = s->size;
9828 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
9833 s->size += ent_size;
9834 if ((*lgot_masks & PLT_IFUNC) != 0)
9836 htab->elf.irelplt->size += rel_size;
9837 htab->got_reli_size += rel_size;
9839 else if (info->shared)
9841 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
9842 srel->size += rel_size;
9851 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
9852 for (; local_plt < end_local_plt; ++local_plt)
9854 struct plt_entry *ent;
9856 for (ent = *local_plt; ent != NULL; ent = ent->next)
9857 if (ent->plt.refcount > 0)
9860 ent->plt.offset = s->size;
9861 s->size += PLT_ENTRY_SIZE (htab);
9863 htab->elf.irelplt->size += sizeof (Elf64_External_Rela);
9866 ent->plt.offset = (bfd_vma) -1;
9870 /* Allocate global sym .plt and .got entries, and space for global
9871 sym dynamic relocs. */
9872 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
9873 /* Stash the end of glink branch table. */
9874 if (htab->glink != NULL)
9875 htab->glink->rawsize = htab->glink->size;
9877 if (!htab->opd_abi && !info->shared)
9878 elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info);
9881 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
9883 struct got_entry *ent;
9885 if (!is_ppc64_elf (ibfd))
9888 ent = ppc64_tlsld_got (ibfd);
9889 if (ent->got.refcount > 0)
9891 if (!htab->do_multi_toc && first_tlsld != NULL)
9893 ent->is_indirect = TRUE;
9894 ent->got.ent = first_tlsld;
9898 if (first_tlsld == NULL)
9900 s = ppc64_elf_tdata (ibfd)->got;
9901 ent->got.offset = s->size;
9906 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
9907 srel->size += sizeof (Elf64_External_Rela);
9912 ent->got.offset = (bfd_vma) -1;
9915 /* We now have determined the sizes of the various dynamic sections.
9916 Allocate memory for them. */
9918 for (s = dynobj->sections; s != NULL; s = s->next)
9920 if ((s->flags & SEC_LINKER_CREATED) == 0)
9923 if (s == htab->brlt || s == htab->relbrlt)
9924 /* These haven't been allocated yet; don't strip. */
9926 else if (s == htab->elf.sgot
9927 || s == htab->elf.splt
9928 || s == htab->elf.iplt
9930 || s == htab->dynbss)
9932 /* Strip this section if we don't need it; see the
9935 else if (s == htab->glink_eh_frame)
9937 if (!bfd_is_abs_section (s->output_section))
9938 /* Not sized yet. */
9941 else if (CONST_STRNEQ (s->name, ".rela"))
9945 if (s != htab->elf.srelplt)
9948 /* We use the reloc_count field as a counter if we need
9949 to copy relocs into the output file. */
9955 /* It's not one of our sections, so don't allocate space. */
9961 /* If we don't need this section, strip it from the
9962 output file. This is mostly to handle .rela.bss and
9963 .rela.plt. We must create both sections in
9964 create_dynamic_sections, because they must be created
9965 before the linker maps input sections to output
9966 sections. The linker does that before
9967 adjust_dynamic_symbol is called, and it is that
9968 function which decides whether anything needs to go
9969 into these sections. */
9970 s->flags |= SEC_EXCLUDE;
9974 if ((s->flags & SEC_HAS_CONTENTS) == 0)
9977 /* Allocate memory for the section contents. We use bfd_zalloc
9978 here in case unused entries are not reclaimed before the
9979 section's contents are written out. This should not happen,
9980 but this way if it does we get a R_PPC64_NONE reloc in .rela
9981 sections instead of garbage.
9982 We also rely on the section contents being zero when writing
9984 s->contents = bfd_zalloc (dynobj, s->size);
9985 if (s->contents == NULL)
9989 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
9991 if (!is_ppc64_elf (ibfd))
9994 s = ppc64_elf_tdata (ibfd)->got;
9995 if (s != NULL && s != htab->elf.sgot)
9998 s->flags |= SEC_EXCLUDE;
10001 s->contents = bfd_zalloc (ibfd, s->size);
10002 if (s->contents == NULL)
10006 s = ppc64_elf_tdata (ibfd)->relgot;
10010 s->flags |= SEC_EXCLUDE;
10013 s->contents = bfd_zalloc (ibfd, s->size);
10014 if (s->contents == NULL)
10017 s->reloc_count = 0;
10022 if (htab->elf.dynamic_sections_created)
10024 bfd_boolean tls_opt;
10026 /* Add some entries to the .dynamic section. We fill in the
10027 values later, in ppc64_elf_finish_dynamic_sections, but we
10028 must add the entries now so that we get the correct size for
10029 the .dynamic section. The DT_DEBUG entry is filled in by the
10030 dynamic linker and used by the debugger. */
10031 #define add_dynamic_entry(TAG, VAL) \
10032 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
10034 if (info->executable)
10036 if (!add_dynamic_entry (DT_DEBUG, 0))
10040 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
10042 if (!add_dynamic_entry (DT_PLTGOT, 0)
10043 || !add_dynamic_entry (DT_PLTRELSZ, 0)
10044 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
10045 || !add_dynamic_entry (DT_JMPREL, 0)
10046 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
10050 if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1)
10052 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
10053 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
10057 tls_opt = (!htab->params->no_tls_get_addr_opt
10058 && htab->tls_get_addr_fd != NULL
10059 && htab->tls_get_addr_fd->elf.plt.plist != NULL);
10060 if (tls_opt || !htab->opd_abi)
10062 if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0))
10068 if (!add_dynamic_entry (DT_RELA, 0)
10069 || !add_dynamic_entry (DT_RELASZ, 0)
10070 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
10073 /* If any dynamic relocs apply to a read-only section,
10074 then we need a DT_TEXTREL entry. */
10075 if ((info->flags & DF_TEXTREL) == 0)
10076 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
10078 if ((info->flags & DF_TEXTREL) != 0)
10080 if (!add_dynamic_entry (DT_TEXTREL, 0))
10085 #undef add_dynamic_entry
10090 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
10093 ppc64_elf_hash_symbol (struct elf_link_hash_entry *h)
10095 if (h->plt.plist != NULL
10097 && !h->pointer_equality_needed)
10100 return _bfd_elf_hash_symbol (h);
10103 /* Determine the type of stub needed, if any, for a call. */
10105 static inline enum ppc_stub_type
10106 ppc_type_of_stub (asection *input_sec,
10107 const Elf_Internal_Rela *rel,
10108 struct ppc_link_hash_entry **hash,
10109 struct plt_entry **plt_ent,
10110 bfd_vma destination,
10111 unsigned long local_off)
10113 struct ppc_link_hash_entry *h = *hash;
10115 bfd_vma branch_offset;
10116 bfd_vma max_branch_offset;
10117 enum elf_ppc64_reloc_type r_type;
10121 struct plt_entry *ent;
10122 struct ppc_link_hash_entry *fdh = h;
10124 && h->oh->is_func_descriptor)
10126 fdh = ppc_follow_link (h->oh);
10130 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
10131 if (ent->addend == rel->r_addend
10132 && ent->plt.offset != (bfd_vma) -1)
10135 return ppc_stub_plt_call;
10138 /* Here, we know we don't have a plt entry. If we don't have a
10139 either a defined function descriptor or a defined entry symbol
10140 in a regular object file, then it is pointless trying to make
10141 any other type of stub. */
10142 if (!is_static_defined (&fdh->elf)
10143 && !is_static_defined (&h->elf))
10144 return ppc_stub_none;
10146 else if (elf_local_got_ents (input_sec->owner) != NULL)
10148 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner);
10149 struct plt_entry **local_plt = (struct plt_entry **)
10150 elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info;
10151 unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
10153 if (local_plt[r_symndx] != NULL)
10155 struct plt_entry *ent;
10157 for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next)
10158 if (ent->addend == rel->r_addend
10159 && ent->plt.offset != (bfd_vma) -1)
10162 return ppc_stub_plt_call;
10167 /* Determine where the call point is. */
10168 location = (input_sec->output_offset
10169 + input_sec->output_section->vma
10172 branch_offset = destination - location;
10173 r_type = ELF64_R_TYPE (rel->r_info);
10175 /* Determine if a long branch stub is needed. */
10176 max_branch_offset = 1 << 25;
10177 if (r_type != R_PPC64_REL24)
10178 max_branch_offset = 1 << 15;
10180 if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off)
10181 /* We need a stub. Figure out whether a long_branch or plt_branch
10182 is needed later. */
10183 return ppc_stub_long_branch;
10185 return ppc_stub_none;
10188 /* With power7 weakly ordered memory model, it is possible for ld.so
10189 to update a plt entry in one thread and have another thread see a
10190 stale zero toc entry. To avoid this we need some sort of acquire
10191 barrier in the call stub. One solution is to make the load of the
10192 toc word seem to appear to depend on the load of the function entry
10193 word. Another solution is to test for r2 being zero, and branch to
10194 the appropriate glink entry if so.
10196 . fake dep barrier compare
10197 . ld 12,xxx(2) ld 12,xxx(2)
10198 . mtctr 12 mtctr 12
10199 . xor 11,12,12 ld 2,xxx+8(2)
10200 . add 2,2,11 cmpldi 2,0
10201 . ld 2,xxx+8(2) bnectr+
10202 . bctr b <glink_entry>
10204 The solution involving the compare turns out to be faster, so
10205 that's what we use unless the branch won't reach. */
10207 #define ALWAYS_USE_FAKE_DEP 0
10208 #define ALWAYS_EMIT_R2SAVE 0
10210 #define PPC_LO(v) ((v) & 0xffff)
10211 #define PPC_HI(v) (((v) >> 16) & 0xffff)
10212 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
10214 static inline unsigned int
10215 plt_stub_size (struct ppc_link_hash_table *htab,
10216 struct ppc_stub_hash_entry *stub_entry,
10219 unsigned size = 12;
10221 if (ALWAYS_EMIT_R2SAVE
10222 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10224 if (PPC_HA (off) != 0)
10229 if (htab->params->plt_static_chain)
10231 if (htab->params->plt_thread_safe
10232 && htab->elf.dynamic_sections_created
10233 && stub_entry->h != NULL
10234 && stub_entry->h->elf.dynindx != -1)
10236 if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off))
10239 if (stub_entry->h != NULL
10240 && (stub_entry->h == htab->tls_get_addr_fd
10241 || stub_entry->h == htab->tls_get_addr)
10242 && !htab->params->no_tls_get_addr_opt)
10247 /* If this stub would cross fewer 2**plt_stub_align boundaries if we align,
10248 then return the padding needed to do so. */
10249 static inline unsigned int
10250 plt_stub_pad (struct ppc_link_hash_table *htab,
10251 struct ppc_stub_hash_entry *stub_entry,
10254 int stub_align = 1 << htab->params->plt_stub_align;
10255 unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off);
10256 bfd_vma stub_off = stub_entry->stub_sec->size;
10258 if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align)
10259 > ((stub_size - 1) & -stub_align))
10260 return stub_align - (stub_off & (stub_align - 1));
10264 /* Build a .plt call stub. */
10266 static inline bfd_byte *
10267 build_plt_stub (struct ppc_link_hash_table *htab,
10268 struct ppc_stub_hash_entry *stub_entry,
10269 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
10271 bfd *obfd = htab->params->stub_bfd;
10272 bfd_boolean plt_load_toc = htab->opd_abi;
10273 bfd_boolean plt_static_chain = htab->params->plt_static_chain;
10274 bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe
10275 && htab->elf.dynamic_sections_created
10276 && stub_entry->h != NULL
10277 && stub_entry->h->elf.dynindx != -1);
10278 bfd_boolean use_fake_dep = plt_thread_safe;
10279 bfd_vma cmp_branch_off = 0;
10281 if (!ALWAYS_USE_FAKE_DEP
10284 && !((stub_entry->h == htab->tls_get_addr_fd
10285 || stub_entry->h == htab->tls_get_addr)
10286 && !htab->params->no_tls_get_addr_opt))
10288 bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1;
10289 bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab))
10290 / PLT_ENTRY_SIZE (htab));
10291 bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8;
10294 if (pltindex > 32768)
10295 glinkoff += (pltindex - 32768) * 4;
10297 + htab->glink->output_offset
10298 + htab->glink->output_section->vma);
10299 from = (p - stub_entry->stub_sec->contents
10300 + 4 * (ALWAYS_EMIT_R2SAVE
10301 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10302 + 4 * (PPC_HA (offset) != 0)
10303 + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain)
10304 != PPC_HA (offset))
10305 + 4 * (plt_static_chain != 0)
10307 + stub_entry->stub_sec->output_offset
10308 + stub_entry->stub_sec->output_section->vma);
10309 cmp_branch_off = to - from;
10310 use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26);
10313 if (PPC_HA (offset) != 0)
10317 if (ALWAYS_EMIT_R2SAVE
10318 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10319 r[0].r_offset += 4;
10320 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
10321 r[1].r_offset = r[0].r_offset + 4;
10322 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10323 r[1].r_addend = r[0].r_addend;
10326 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
10328 r[2].r_offset = r[1].r_offset + 4;
10329 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
10330 r[2].r_addend = r[0].r_addend;
10334 r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep;
10335 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10336 r[2].r_addend = r[0].r_addend + 8;
10337 if (plt_static_chain)
10339 r[3].r_offset = r[2].r_offset + 4;
10340 r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10341 r[3].r_addend = r[0].r_addend + 16;
10346 if (ALWAYS_EMIT_R2SAVE
10347 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10348 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
10351 bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4;
10352 bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4;
10356 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
10357 bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4;
10360 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
10362 bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4;
10365 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
10370 bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4;
10371 bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4;
10373 bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4;
10374 if (plt_static_chain)
10375 bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4;
10382 if (ALWAYS_EMIT_R2SAVE
10383 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10384 r[0].r_offset += 4;
10385 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10388 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
10390 r[1].r_offset = r[0].r_offset + 4;
10391 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
10392 r[1].r_addend = r[0].r_addend;
10396 r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep;
10397 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10398 r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain;
10399 if (plt_static_chain)
10401 r[2].r_offset = r[1].r_offset + 4;
10402 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10403 r[2].r_addend = r[0].r_addend + 8;
10408 if (ALWAYS_EMIT_R2SAVE
10409 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10410 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
10411 bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4;
10413 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
10415 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
10418 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
10423 bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4;
10424 bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4;
10426 if (plt_static_chain)
10427 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
10428 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
10431 if (plt_load_toc && plt_thread_safe && !use_fake_dep)
10433 bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4;
10434 bfd_put_32 (obfd, BNECTR_P4, p), p += 4;
10435 bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4;
10438 bfd_put_32 (obfd, BCTR, p), p += 4;
10442 /* Build a special .plt call stub for __tls_get_addr. */
10444 #define LD_R11_0R3 0xe9630000
10445 #define LD_R12_0R3 0xe9830000
10446 #define MR_R0_R3 0x7c601b78
10447 #define CMPDI_R11_0 0x2c2b0000
10448 #define ADD_R3_R12_R13 0x7c6c6a14
10449 #define BEQLR 0x4d820020
10450 #define MR_R3_R0 0x7c030378
10451 #define STD_R11_0R1 0xf9610000
10452 #define BCTRL 0x4e800421
10453 #define LD_R11_0R1 0xe9610000
10454 #define MTLR_R11 0x7d6803a6
10456 static inline bfd_byte *
10457 build_tls_get_addr_stub (struct ppc_link_hash_table *htab,
10458 struct ppc_stub_hash_entry *stub_entry,
10459 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
10461 bfd *obfd = htab->params->stub_bfd;
10463 bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4;
10464 bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4;
10465 bfd_put_32 (obfd, MR_R0_R3, p), p += 4;
10466 bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4;
10467 bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4;
10468 bfd_put_32 (obfd, BEQLR, p), p += 4;
10469 bfd_put_32 (obfd, MR_R3_R0, p), p += 4;
10470 bfd_put_32 (obfd, MFLR_R11, p), p += 4;
10471 bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4;
10474 r[0].r_offset += 9 * 4;
10475 p = build_plt_stub (htab, stub_entry, p, offset, r);
10476 bfd_put_32 (obfd, BCTRL, p - 4);
10478 bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4;
10479 bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4;
10480 bfd_put_32 (obfd, MTLR_R11, p), p += 4;
10481 bfd_put_32 (obfd, BLR, p), p += 4;
10486 static Elf_Internal_Rela *
10487 get_relocs (asection *sec, int count)
10489 Elf_Internal_Rela *relocs;
10490 struct bfd_elf_section_data *elfsec_data;
10492 elfsec_data = elf_section_data (sec);
10493 relocs = elfsec_data->relocs;
10494 if (relocs == NULL)
10496 bfd_size_type relsize;
10497 relsize = sec->reloc_count * sizeof (*relocs);
10498 relocs = bfd_alloc (sec->owner, relsize);
10499 if (relocs == NULL)
10501 elfsec_data->relocs = relocs;
10502 elfsec_data->rela.hdr = bfd_zalloc (sec->owner,
10503 sizeof (Elf_Internal_Shdr));
10504 if (elfsec_data->rela.hdr == NULL)
10506 elfsec_data->rela.hdr->sh_size = (sec->reloc_count
10507 * sizeof (Elf64_External_Rela));
10508 elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela);
10509 sec->reloc_count = 0;
10511 relocs += sec->reloc_count;
10512 sec->reloc_count += count;
10517 get_r2off (struct bfd_link_info *info,
10518 struct ppc_stub_hash_entry *stub_entry)
10520 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10521 bfd_vma r2off = htab->stub_group[stub_entry->target_section->id].toc_off;
10525 /* Support linking -R objects. Get the toc pointer from the
10528 if (!htab->opd_abi)
10530 asection *opd = stub_entry->h->elf.root.u.def.section;
10531 bfd_vma opd_off = stub_entry->h->elf.root.u.def.value;
10533 if (strcmp (opd->name, ".opd") != 0
10534 || opd->reloc_count != 0)
10536 info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"),
10537 stub_entry->h->elf.root.root.string);
10538 bfd_set_error (bfd_error_bad_value);
10541 if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8))
10543 r2off = bfd_get_64 (opd->owner, buf);
10544 r2off -= elf_gp (info->output_bfd);
10546 r2off -= htab->stub_group[stub_entry->id_sec->id].toc_off;
10551 ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
10553 struct ppc_stub_hash_entry *stub_entry;
10554 struct ppc_branch_hash_entry *br_entry;
10555 struct bfd_link_info *info;
10556 struct ppc_link_hash_table *htab;
10561 Elf_Internal_Rela *r;
10564 /* Massage our args to the form they really have. */
10565 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
10568 htab = ppc_hash_table (info);
10572 /* Make a note of the offset within the stubs for this entry. */
10573 stub_entry->stub_offset = stub_entry->stub_sec->size;
10574 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
10576 htab->stub_count[stub_entry->stub_type - 1] += 1;
10577 switch (stub_entry->stub_type)
10579 case ppc_stub_long_branch:
10580 case ppc_stub_long_branch_r2off:
10581 /* Branches are relative. This is where we are going to. */
10582 dest = (stub_entry->target_value
10583 + stub_entry->target_section->output_offset
10584 + stub_entry->target_section->output_section->vma);
10585 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
10588 /* And this is where we are coming from. */
10589 off -= (stub_entry->stub_offset
10590 + stub_entry->stub_sec->output_offset
10591 + stub_entry->stub_sec->output_section->vma);
10594 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
10596 bfd_vma r2off = get_r2off (info, stub_entry);
10600 htab->stub_error = TRUE;
10603 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
10606 if (PPC_HA (r2off) != 0)
10609 bfd_put_32 (htab->params->stub_bfd,
10610 ADDIS_R2_R2 | PPC_HA (r2off), loc);
10613 bfd_put_32 (htab->params->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
10617 bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
10619 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
10621 info->callbacks->einfo
10622 (_("%P: long branch stub `%s' offset overflow\n"),
10623 stub_entry->root.string);
10624 htab->stub_error = TRUE;
10628 if (info->emitrelocations)
10630 r = get_relocs (stub_entry->stub_sec, 1);
10633 r->r_offset = loc - stub_entry->stub_sec->contents;
10634 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
10635 r->r_addend = dest;
10636 if (stub_entry->h != NULL)
10638 struct elf_link_hash_entry **hashes;
10639 unsigned long symndx;
10640 struct ppc_link_hash_entry *h;
10642 hashes = elf_sym_hashes (htab->params->stub_bfd);
10643 if (hashes == NULL)
10645 bfd_size_type hsize;
10647 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
10648 hashes = bfd_zalloc (htab->params->stub_bfd, hsize);
10649 if (hashes == NULL)
10651 elf_sym_hashes (htab->params->stub_bfd) = hashes;
10652 htab->stub_globals = 1;
10654 symndx = htab->stub_globals++;
10656 hashes[symndx] = &h->elf;
10657 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
10658 if (h->oh != NULL && h->oh->is_func)
10659 h = ppc_follow_link (h->oh);
10660 if (h->elf.root.u.def.section != stub_entry->target_section)
10661 /* H is an opd symbol. The addend must be zero. */
10665 off = (h->elf.root.u.def.value
10666 + h->elf.root.u.def.section->output_offset
10667 + h->elf.root.u.def.section->output_section->vma);
10668 r->r_addend -= off;
10674 case ppc_stub_plt_branch:
10675 case ppc_stub_plt_branch_r2off:
10676 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
10677 stub_entry->root.string + 9,
10679 if (br_entry == NULL)
10681 info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"),
10682 stub_entry->root.string);
10683 htab->stub_error = TRUE;
10687 dest = (stub_entry->target_value
10688 + stub_entry->target_section->output_offset
10689 + stub_entry->target_section->output_section->vma);
10690 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
10691 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
10693 bfd_put_64 (htab->brlt->owner, dest,
10694 htab->brlt->contents + br_entry->offset);
10696 if (br_entry->iter == htab->stub_iteration)
10698 br_entry->iter = 0;
10700 if (htab->relbrlt != NULL)
10702 /* Create a reloc for the branch lookup table entry. */
10703 Elf_Internal_Rela rela;
10706 rela.r_offset = (br_entry->offset
10707 + htab->brlt->output_offset
10708 + htab->brlt->output_section->vma);
10709 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
10710 rela.r_addend = dest;
10712 rl = htab->relbrlt->contents;
10713 rl += (htab->relbrlt->reloc_count++
10714 * sizeof (Elf64_External_Rela));
10715 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
10717 else if (info->emitrelocations)
10719 r = get_relocs (htab->brlt, 1);
10722 /* brlt, being SEC_LINKER_CREATED does not go through the
10723 normal reloc processing. Symbols and offsets are not
10724 translated from input file to output file form, so
10725 set up the offset per the output file. */
10726 r->r_offset = (br_entry->offset
10727 + htab->brlt->output_offset
10728 + htab->brlt->output_section->vma);
10729 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
10730 r->r_addend = dest;
10734 dest = (br_entry->offset
10735 + htab->brlt->output_offset
10736 + htab->brlt->output_section->vma);
10739 - elf_gp (htab->brlt->output_section->owner)
10740 - htab->stub_group[stub_entry->id_sec->id].toc_off);
10742 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
10744 info->callbacks->einfo
10745 (_("%P: linkage table error against `%T'\n"),
10746 stub_entry->root.string);
10747 bfd_set_error (bfd_error_bad_value);
10748 htab->stub_error = TRUE;
10752 if (info->emitrelocations)
10754 r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0));
10757 r[0].r_offset = loc - stub_entry->stub_sec->contents;
10758 if (bfd_big_endian (info->output_bfd))
10759 r[0].r_offset += 2;
10760 if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
10761 r[0].r_offset += 4;
10762 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10763 r[0].r_addend = dest;
10764 if (PPC_HA (off) != 0)
10766 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
10767 r[1].r_offset = r[0].r_offset + 4;
10768 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10769 r[1].r_addend = r[0].r_addend;
10773 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
10775 if (PPC_HA (off) != 0)
10778 bfd_put_32 (htab->params->stub_bfd,
10779 ADDIS_R12_R2 | PPC_HA (off), loc);
10781 bfd_put_32 (htab->params->stub_bfd,
10782 LD_R12_0R12 | PPC_LO (off), loc);
10787 bfd_put_32 (htab->params->stub_bfd,
10788 LD_R12_0R2 | PPC_LO (off), loc);
10793 bfd_vma r2off = get_r2off (info, stub_entry);
10795 if (r2off == 0 && htab->opd_abi)
10797 htab->stub_error = TRUE;
10801 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
10804 if (PPC_HA (off) != 0)
10807 bfd_put_32 (htab->params->stub_bfd,
10808 ADDIS_R12_R2 | PPC_HA (off), loc);
10810 bfd_put_32 (htab->params->stub_bfd,
10811 LD_R12_0R12 | PPC_LO (off), loc);
10814 bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc);
10816 if (PPC_HA (r2off) != 0)
10820 bfd_put_32 (htab->params->stub_bfd,
10821 ADDIS_R2_R2 | PPC_HA (r2off), loc);
10823 if (PPC_LO (r2off) != 0)
10827 bfd_put_32 (htab->params->stub_bfd,
10828 ADDI_R2_R2 | PPC_LO (r2off), loc);
10832 bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc);
10834 bfd_put_32 (htab->params->stub_bfd, BCTR, loc);
10837 case ppc_stub_plt_call:
10838 case ppc_stub_plt_call_r2save:
10839 if (stub_entry->h != NULL
10840 && stub_entry->h->is_func_descriptor
10841 && stub_entry->h->oh != NULL)
10843 struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh);
10845 /* If the old-ABI "dot-symbol" is undefined make it weak so
10846 we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL.
10847 FIXME: We used to define the symbol on one of the call
10848 stubs instead, which is why we test symbol section id
10849 against htab->top_id in various places. Likely all
10850 these checks could now disappear. */
10851 if (fh->elf.root.type == bfd_link_hash_undefined)
10852 fh->elf.root.type = bfd_link_hash_undefweak;
10853 /* Stop undo_symbol_twiddle changing it back to undefined. */
10854 fh->was_undefined = 0;
10857 /* Now build the stub. */
10858 dest = stub_entry->plt_ent->plt.offset & ~1;
10859 if (dest >= (bfd_vma) -2)
10862 plt = htab->elf.splt;
10863 if (!htab->elf.dynamic_sections_created
10864 || stub_entry->h == NULL
10865 || stub_entry->h->elf.dynindx == -1)
10866 plt = htab->elf.iplt;
10868 dest += plt->output_offset + plt->output_section->vma;
10870 if (stub_entry->h == NULL
10871 && (stub_entry->plt_ent->plt.offset & 1) == 0)
10873 Elf_Internal_Rela rela;
10876 rela.r_offset = dest;
10878 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
10880 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
10881 rela.r_addend = (stub_entry->target_value
10882 + stub_entry->target_section->output_offset
10883 + stub_entry->target_section->output_section->vma);
10885 rl = (htab->elf.irelplt->contents
10886 + (htab->elf.irelplt->reloc_count++
10887 * sizeof (Elf64_External_Rela)));
10888 bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl);
10889 stub_entry->plt_ent->plt.offset |= 1;
10893 - elf_gp (plt->output_section->owner)
10894 - htab->stub_group[stub_entry->id_sec->id].toc_off);
10896 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
10898 info->callbacks->einfo
10899 (_("%P: linkage table error against `%T'\n"),
10900 stub_entry->h != NULL
10901 ? stub_entry->h->elf.root.root.string
10903 bfd_set_error (bfd_error_bad_value);
10904 htab->stub_error = TRUE;
10908 if (htab->params->plt_stub_align != 0)
10910 unsigned pad = plt_stub_pad (htab, stub_entry, off);
10912 stub_entry->stub_sec->size += pad;
10913 stub_entry->stub_offset = stub_entry->stub_sec->size;
10918 if (info->emitrelocations)
10920 r = get_relocs (stub_entry->stub_sec,
10921 ((PPC_HA (off) != 0)
10923 ? 2 + (htab->params->plt_static_chain
10924 && PPC_HA (off + 16) == PPC_HA (off))
10928 r[0].r_offset = loc - stub_entry->stub_sec->contents;
10929 if (bfd_big_endian (info->output_bfd))
10930 r[0].r_offset += 2;
10931 r[0].r_addend = dest;
10933 if (stub_entry->h != NULL
10934 && (stub_entry->h == htab->tls_get_addr_fd
10935 || stub_entry->h == htab->tls_get_addr)
10936 && !htab->params->no_tls_get_addr_opt)
10937 p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r);
10939 p = build_plt_stub (htab, stub_entry, loc, off, r);
10948 stub_entry->stub_sec->size += size;
10950 if (htab->params->emit_stub_syms)
10952 struct elf_link_hash_entry *h;
10955 const char *const stub_str[] = { "long_branch",
10956 "long_branch_r2off",
10958 "plt_branch_r2off",
10962 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
10963 len2 = strlen (stub_entry->root.string);
10964 name = bfd_malloc (len1 + len2 + 2);
10967 memcpy (name, stub_entry->root.string, 9);
10968 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
10969 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
10970 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
10973 if (h->root.type == bfd_link_hash_new)
10975 h->root.type = bfd_link_hash_defined;
10976 h->root.u.def.section = stub_entry->stub_sec;
10977 h->root.u.def.value = stub_entry->stub_offset;
10978 h->ref_regular = 1;
10979 h->def_regular = 1;
10980 h->ref_regular_nonweak = 1;
10981 h->forced_local = 1;
10983 h->root.linker_def = 1;
10990 /* As above, but don't actually build the stub. Just bump offset so
10991 we know stub section sizes, and select plt_branch stubs where
10992 long_branch stubs won't do. */
10995 ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
10997 struct ppc_stub_hash_entry *stub_entry;
10998 struct bfd_link_info *info;
10999 struct ppc_link_hash_table *htab;
11003 /* Massage our args to the form they really have. */
11004 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
11007 htab = ppc_hash_table (info);
11011 if (stub_entry->stub_type == ppc_stub_plt_call
11012 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
11015 off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1;
11016 if (off >= (bfd_vma) -2)
11018 plt = htab->elf.splt;
11019 if (!htab->elf.dynamic_sections_created
11020 || stub_entry->h == NULL
11021 || stub_entry->h->elf.dynindx == -1)
11022 plt = htab->elf.iplt;
11023 off += (plt->output_offset
11024 + plt->output_section->vma
11025 - elf_gp (plt->output_section->owner)
11026 - htab->stub_group[stub_entry->id_sec->id].toc_off);
11028 size = plt_stub_size (htab, stub_entry, off);
11029 if (htab->params->plt_stub_align)
11030 size += plt_stub_pad (htab, stub_entry, off);
11031 if (info->emitrelocations)
11033 stub_entry->stub_sec->reloc_count
11034 += ((PPC_HA (off) != 0)
11036 ? 2 + (htab->params->plt_static_chain
11037 && PPC_HA (off + 16) == PPC_HA (off))
11039 stub_entry->stub_sec->flags |= SEC_RELOC;
11044 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
11047 bfd_vma local_off = 0;
11049 off = (stub_entry->target_value
11050 + stub_entry->target_section->output_offset
11051 + stub_entry->target_section->output_section->vma);
11052 off -= (stub_entry->stub_sec->size
11053 + stub_entry->stub_sec->output_offset
11054 + stub_entry->stub_sec->output_section->vma);
11056 /* Reset the stub type from the plt variant in case we now
11057 can reach with a shorter stub. */
11058 if (stub_entry->stub_type >= ppc_stub_plt_branch)
11059 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
11062 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
11064 r2off = get_r2off (info, stub_entry);
11065 if (r2off == 0 && htab->opd_abi)
11067 htab->stub_error = TRUE;
11071 if (PPC_HA (r2off) != 0)
11076 local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
11078 /* If the branch offset if too big, use a ppc_stub_plt_branch.
11079 Do the same for -R objects without function descriptors. */
11080 if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off
11081 || (stub_entry->stub_type == ppc_stub_long_branch_r2off
11084 struct ppc_branch_hash_entry *br_entry;
11086 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
11087 stub_entry->root.string + 9,
11089 if (br_entry == NULL)
11091 info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"),
11092 stub_entry->root.string);
11093 htab->stub_error = TRUE;
11097 if (br_entry->iter != htab->stub_iteration)
11099 br_entry->iter = htab->stub_iteration;
11100 br_entry->offset = htab->brlt->size;
11101 htab->brlt->size += 8;
11103 if (htab->relbrlt != NULL)
11104 htab->relbrlt->size += sizeof (Elf64_External_Rela);
11105 else if (info->emitrelocations)
11107 htab->brlt->reloc_count += 1;
11108 htab->brlt->flags |= SEC_RELOC;
11112 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
11113 off = (br_entry->offset
11114 + htab->brlt->output_offset
11115 + htab->brlt->output_section->vma
11116 - elf_gp (htab->brlt->output_section->owner)
11117 - htab->stub_group[stub_entry->id_sec->id].toc_off);
11119 if (info->emitrelocations)
11121 stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0);
11122 stub_entry->stub_sec->flags |= SEC_RELOC;
11125 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
11128 if (PPC_HA (off) != 0)
11134 if (PPC_HA (off) != 0)
11137 if (PPC_HA (r2off) != 0)
11139 if (PPC_LO (r2off) != 0)
11143 else if (info->emitrelocations)
11145 stub_entry->stub_sec->reloc_count += 1;
11146 stub_entry->stub_sec->flags |= SEC_RELOC;
11150 stub_entry->stub_sec->size += size;
11154 /* Set up various things so that we can make a list of input sections
11155 for each output section included in the link. Returns -1 on error,
11156 0 when no stubs will be needed, and 1 on success. */
11159 ppc64_elf_setup_section_lists (struct bfd_link_info *info)
11162 int top_id, top_index, id;
11164 asection **input_list;
11166 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11171 /* Find the top input section id. */
11172 for (input_bfd = info->input_bfds, top_id = 3;
11174 input_bfd = input_bfd->link.next)
11176 for (section = input_bfd->sections;
11178 section = section->next)
11180 if (top_id < section->id)
11181 top_id = section->id;
11185 htab->top_id = top_id;
11186 amt = sizeof (struct map_stub) * (top_id + 1);
11187 htab->stub_group = bfd_zmalloc (amt);
11188 if (htab->stub_group == NULL)
11191 /* Set toc_off for com, und, abs and ind sections. */
11192 for (id = 0; id < 3; id++)
11193 htab->stub_group[id].toc_off = TOC_BASE_OFF;
11195 /* We can't use output_bfd->section_count here to find the top output
11196 section index as some sections may have been removed, and
11197 strip_excluded_output_sections doesn't renumber the indices. */
11198 for (section = info->output_bfd->sections, top_index = 0;
11200 section = section->next)
11202 if (top_index < section->index)
11203 top_index = section->index;
11206 htab->top_index = top_index;
11207 amt = sizeof (asection *) * (top_index + 1);
11208 input_list = bfd_zmalloc (amt);
11209 htab->input_list = input_list;
11210 if (input_list == NULL)
11216 /* Set up for first pass at multitoc partitioning. */
11219 ppc64_elf_start_multitoc_partition (struct bfd_link_info *info)
11221 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11223 htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd);
11224 htab->toc_bfd = NULL;
11225 htab->toc_first_sec = NULL;
11228 /* The linker repeatedly calls this function for each TOC input section
11229 and linker generated GOT section. Group input bfds such that the toc
11230 within a group is less than 64k in size. */
11233 ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
11235 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11236 bfd_vma addr, off, limit;
11241 if (!htab->second_toc_pass)
11243 /* Keep track of the first .toc or .got section for this input bfd. */
11244 bfd_boolean new_bfd = htab->toc_bfd != isec->owner;
11248 htab->toc_bfd = isec->owner;
11249 htab->toc_first_sec = isec;
11252 addr = isec->output_offset + isec->output_section->vma;
11253 off = addr - htab->toc_curr;
11254 limit = 0x80008000;
11255 if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc)
11257 if (off + isec->size > limit)
11259 addr = (htab->toc_first_sec->output_offset
11260 + htab->toc_first_sec->output_section->vma);
11261 htab->toc_curr = addr;
11262 htab->toc_curr &= -TOC_BASE_ALIGN;
11265 /* toc_curr is the base address of this toc group. Set elf_gp
11266 for the input section to be the offset relative to the
11267 output toc base plus 0x8000. Making the input elf_gp an
11268 offset allows us to move the toc as a whole without
11269 recalculating input elf_gp. */
11270 off = htab->toc_curr - elf_gp (isec->output_section->owner);
11271 off += TOC_BASE_OFF;
11273 /* Die if someone uses a linker script that doesn't keep input
11274 file .toc and .got together. */
11276 && elf_gp (isec->owner) != 0
11277 && elf_gp (isec->owner) != off)
11280 elf_gp (isec->owner) = off;
11284 /* During the second pass toc_first_sec points to the start of
11285 a toc group, and toc_curr is used to track the old elf_gp.
11286 We use toc_bfd to ensure we only look at each bfd once. */
11287 if (htab->toc_bfd == isec->owner)
11289 htab->toc_bfd = isec->owner;
11291 if (htab->toc_first_sec == NULL
11292 || htab->toc_curr != elf_gp (isec->owner))
11294 htab->toc_curr = elf_gp (isec->owner);
11295 htab->toc_first_sec = isec;
11297 addr = (htab->toc_first_sec->output_offset
11298 + htab->toc_first_sec->output_section->vma);
11299 off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF;
11300 elf_gp (isec->owner) = off;
11305 /* Called via elf_link_hash_traverse to merge GOT entries for global
11309 merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
11311 if (h->root.type == bfd_link_hash_indirect)
11314 merge_got_entries (&h->got.glist);
11319 /* Called via elf_link_hash_traverse to allocate GOT entries for global
11323 reallocate_got (struct elf_link_hash_entry *h, void *inf)
11325 struct got_entry *gent;
11327 if (h->root.type == bfd_link_hash_indirect)
11330 for (gent = h->got.glist; gent != NULL; gent = gent->next)
11331 if (!gent->is_indirect)
11332 allocate_got (h, (struct bfd_link_info *) inf, gent);
11336 /* Called on the first multitoc pass after the last call to
11337 ppc64_elf_next_toc_section. This function removes duplicate GOT
11341 ppc64_elf_layout_multitoc (struct bfd_link_info *info)
11343 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11344 struct bfd *ibfd, *ibfd2;
11345 bfd_boolean done_something;
11347 htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd);
11349 if (!htab->do_multi_toc)
11352 /* Merge global sym got entries within a toc group. */
11353 elf_link_hash_traverse (&htab->elf, merge_global_got, info);
11355 /* And tlsld_got. */
11356 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
11358 struct got_entry *ent, *ent2;
11360 if (!is_ppc64_elf (ibfd))
11363 ent = ppc64_tlsld_got (ibfd);
11364 if (!ent->is_indirect
11365 && ent->got.offset != (bfd_vma) -1)
11367 for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next)
11369 if (!is_ppc64_elf (ibfd2))
11372 ent2 = ppc64_tlsld_got (ibfd2);
11373 if (!ent2->is_indirect
11374 && ent2->got.offset != (bfd_vma) -1
11375 && elf_gp (ibfd2) == elf_gp (ibfd))
11377 ent2->is_indirect = TRUE;
11378 ent2->got.ent = ent;
11384 /* Zap sizes of got sections. */
11385 htab->elf.irelplt->rawsize = htab->elf.irelplt->size;
11386 htab->elf.irelplt->size -= htab->got_reli_size;
11387 htab->got_reli_size = 0;
11389 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
11391 asection *got, *relgot;
11393 if (!is_ppc64_elf (ibfd))
11396 got = ppc64_elf_tdata (ibfd)->got;
11399 got->rawsize = got->size;
11401 relgot = ppc64_elf_tdata (ibfd)->relgot;
11402 relgot->rawsize = relgot->size;
11407 /* Now reallocate the got, local syms first. We don't need to
11408 allocate section contents again since we never increase size. */
11409 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
11411 struct got_entry **lgot_ents;
11412 struct got_entry **end_lgot_ents;
11413 struct plt_entry **local_plt;
11414 struct plt_entry **end_local_plt;
11415 unsigned char *lgot_masks;
11416 bfd_size_type locsymcount;
11417 Elf_Internal_Shdr *symtab_hdr;
11420 if (!is_ppc64_elf (ibfd))
11423 lgot_ents = elf_local_got_ents (ibfd);
11427 symtab_hdr = &elf_symtab_hdr (ibfd);
11428 locsymcount = symtab_hdr->sh_info;
11429 end_lgot_ents = lgot_ents + locsymcount;
11430 local_plt = (struct plt_entry **) end_lgot_ents;
11431 end_local_plt = local_plt + locsymcount;
11432 lgot_masks = (unsigned char *) end_local_plt;
11433 s = ppc64_elf_tdata (ibfd)->got;
11434 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
11436 struct got_entry *ent;
11438 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
11440 unsigned int ent_size = 8;
11441 unsigned int rel_size = sizeof (Elf64_External_Rela);
11443 ent->got.offset = s->size;
11444 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
11449 s->size += ent_size;
11450 if ((*lgot_masks & PLT_IFUNC) != 0)
11452 htab->elf.irelplt->size += rel_size;
11453 htab->got_reli_size += rel_size;
11455 else if (info->shared)
11457 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11458 srel->size += rel_size;
11464 elf_link_hash_traverse (&htab->elf, reallocate_got, info);
11466 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
11468 struct got_entry *ent;
11470 if (!is_ppc64_elf (ibfd))
11473 ent = ppc64_tlsld_got (ibfd);
11474 if (!ent->is_indirect
11475 && ent->got.offset != (bfd_vma) -1)
11477 asection *s = ppc64_elf_tdata (ibfd)->got;
11478 ent->got.offset = s->size;
11482 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11483 srel->size += sizeof (Elf64_External_Rela);
11488 done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size;
11489 if (!done_something)
11490 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
11494 if (!is_ppc64_elf (ibfd))
11497 got = ppc64_elf_tdata (ibfd)->got;
11500 done_something = got->rawsize != got->size;
11501 if (done_something)
11506 if (done_something)
11507 (*htab->params->layout_sections_again) ();
11509 /* Set up for second pass over toc sections to recalculate elf_gp
11510 on input sections. */
11511 htab->toc_bfd = NULL;
11512 htab->toc_first_sec = NULL;
11513 htab->second_toc_pass = TRUE;
11514 return done_something;
11517 /* Called after second pass of multitoc partitioning. */
11520 ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info)
11522 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11524 /* After the second pass, toc_curr tracks the TOC offset used
11525 for code sections below in ppc64_elf_next_input_section. */
11526 htab->toc_curr = TOC_BASE_OFF;
11529 /* No toc references were found in ISEC. If the code in ISEC makes no
11530 calls, then there's no need to use toc adjusting stubs when branching
11531 into ISEC. Actually, indirect calls from ISEC are OK as they will
11532 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
11533 needed, and 2 if a cyclical call-graph was found but no other reason
11534 for a stub was detected. If called from the top level, a return of
11535 2 means the same as a return of 0. */
11538 toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
11542 /* Mark this section as checked. */
11543 isec->call_check_done = 1;
11545 /* We know none of our code bearing sections will need toc stubs. */
11546 if ((isec->flags & SEC_LINKER_CREATED) != 0)
11549 if (isec->size == 0)
11552 if (isec->output_section == NULL)
11556 if (isec->reloc_count != 0)
11558 Elf_Internal_Rela *relstart, *rel;
11559 Elf_Internal_Sym *local_syms;
11560 struct ppc_link_hash_table *htab;
11562 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
11563 info->keep_memory);
11564 if (relstart == NULL)
11567 /* Look for branches to outside of this section. */
11569 htab = ppc_hash_table (info);
11573 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
11575 enum elf_ppc64_reloc_type r_type;
11576 unsigned long r_symndx;
11577 struct elf_link_hash_entry *h;
11578 struct ppc_link_hash_entry *eh;
11579 Elf_Internal_Sym *sym;
11581 struct _opd_sec_data *opd;
11585 r_type = ELF64_R_TYPE (rel->r_info);
11586 if (r_type != R_PPC64_REL24
11587 && r_type != R_PPC64_REL14
11588 && r_type != R_PPC64_REL14_BRTAKEN
11589 && r_type != R_PPC64_REL14_BRNTAKEN)
11592 r_symndx = ELF64_R_SYM (rel->r_info);
11593 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
11600 /* Calls to dynamic lib functions go through a plt call stub
11602 eh = (struct ppc_link_hash_entry *) h;
11604 && (eh->elf.plt.plist != NULL
11606 && ppc_follow_link (eh->oh)->elf.plt.plist != NULL)))
11612 if (sym_sec == NULL)
11613 /* Ignore other undefined symbols. */
11616 /* Assume branches to other sections not included in the
11617 link need stubs too, to cover -R and absolute syms. */
11618 if (sym_sec->output_section == NULL)
11625 sym_value = sym->st_value;
11628 if (h->root.type != bfd_link_hash_defined
11629 && h->root.type != bfd_link_hash_defweak)
11631 sym_value = h->root.u.def.value;
11633 sym_value += rel->r_addend;
11635 /* If this branch reloc uses an opd sym, find the code section. */
11636 opd = get_opd_info (sym_sec);
11639 if (h == NULL && opd->adjust != NULL)
11643 adjust = opd->adjust[OPD_NDX (sym->st_value)];
11645 /* Assume deleted functions won't ever be called. */
11647 sym_value += adjust;
11650 dest = opd_entry_value (sym_sec, sym_value,
11651 &sym_sec, NULL, FALSE);
11652 if (dest == (bfd_vma) -1)
11657 + sym_sec->output_offset
11658 + sym_sec->output_section->vma);
11660 /* Ignore branch to self. */
11661 if (sym_sec == isec)
11664 /* If the called function uses the toc, we need a stub. */
11665 if (sym_sec->has_toc_reloc
11666 || sym_sec->makes_toc_func_call)
11672 /* Assume any branch that needs a long branch stub might in fact
11673 need a plt_branch stub. A plt_branch stub uses r2. */
11674 else if (dest - (isec->output_offset
11675 + isec->output_section->vma
11676 + rel->r_offset) + (1 << 25)
11677 >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h
11685 /* If calling back to a section in the process of being
11686 tested, we can't say for sure that no toc adjusting stubs
11687 are needed, so don't return zero. */
11688 else if (sym_sec->call_check_in_progress)
11691 /* Branches to another section that itself doesn't have any TOC
11692 references are OK. Recursively call ourselves to check. */
11693 else if (!sym_sec->call_check_done)
11697 /* Mark current section as indeterminate, so that other
11698 sections that call back to current won't be marked as
11700 isec->call_check_in_progress = 1;
11701 recur = toc_adjusting_stub_needed (info, sym_sec);
11702 isec->call_check_in_progress = 0;
11713 if (local_syms != NULL
11714 && (elf_symtab_hdr (isec->owner).contents
11715 != (unsigned char *) local_syms))
11717 if (elf_section_data (isec)->relocs != relstart)
11722 && isec->map_head.s != NULL
11723 && (strcmp (isec->output_section->name, ".init") == 0
11724 || strcmp (isec->output_section->name, ".fini") == 0))
11726 if (isec->map_head.s->has_toc_reloc
11727 || isec->map_head.s->makes_toc_func_call)
11729 else if (!isec->map_head.s->call_check_done)
11732 isec->call_check_in_progress = 1;
11733 recur = toc_adjusting_stub_needed (info, isec->map_head.s);
11734 isec->call_check_in_progress = 0;
11741 isec->makes_toc_func_call = 1;
11746 /* The linker repeatedly calls this function for each input section,
11747 in the order that input sections are linked into output sections.
11748 Build lists of input sections to determine groupings between which
11749 we may insert linker stubs. */
11752 ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
11754 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11759 if ((isec->output_section->flags & SEC_CODE) != 0
11760 && isec->output_section->index <= htab->top_index)
11762 asection **list = htab->input_list + isec->output_section->index;
11763 /* Steal the link_sec pointer for our list. */
11764 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
11765 /* This happens to make the list in reverse order,
11766 which is what we want. */
11767 PREV_SEC (isec) = *list;
11771 if (htab->multi_toc_needed)
11773 /* Analyse sections that aren't already flagged as needing a
11774 valid toc pointer. Exclude .fixup for the linux kernel.
11775 .fixup contains branches, but only back to the function that
11776 hit an exception. */
11777 if (!(isec->has_toc_reloc
11778 || (isec->flags & SEC_CODE) == 0
11779 || strcmp (isec->name, ".fixup") == 0
11780 || isec->call_check_done))
11782 if (toc_adjusting_stub_needed (info, isec) < 0)
11785 /* Make all sections use the TOC assigned for this object file.
11786 This will be wrong for pasted sections; We fix that in
11787 check_pasted_section(). */
11788 if (elf_gp (isec->owner) != 0)
11789 htab->toc_curr = elf_gp (isec->owner);
11792 htab->stub_group[isec->id].toc_off = htab->toc_curr;
11796 /* Check that all .init and .fini sections use the same toc, if they
11797 have toc relocs. */
11800 check_pasted_section (struct bfd_link_info *info, const char *name)
11802 asection *o = bfd_get_section_by_name (info->output_bfd, name);
11806 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11807 bfd_vma toc_off = 0;
11810 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
11811 if (i->has_toc_reloc)
11814 toc_off = htab->stub_group[i->id].toc_off;
11815 else if (toc_off != htab->stub_group[i->id].toc_off)
11820 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
11821 if (i->makes_toc_func_call)
11823 toc_off = htab->stub_group[i->id].toc_off;
11827 /* Make sure the whole pasted function uses the same toc offset. */
11829 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
11830 htab->stub_group[i->id].toc_off = toc_off;
11836 ppc64_elf_check_init_fini (struct bfd_link_info *info)
11838 return (check_pasted_section (info, ".init")
11839 & check_pasted_section (info, ".fini"));
11842 /* See whether we can group stub sections together. Grouping stub
11843 sections may result in fewer stubs. More importantly, we need to
11844 put all .init* and .fini* stubs at the beginning of the .init or
11845 .fini output sections respectively, because glibc splits the
11846 _init and _fini functions into multiple parts. Putting a stub in
11847 the middle of a function is not a good idea. */
11850 group_sections (struct ppc_link_hash_table *htab,
11851 bfd_size_type stub_group_size,
11852 bfd_boolean stubs_always_before_branch)
11855 bfd_size_type stub14_group_size;
11856 bfd_boolean suppress_size_errors;
11858 suppress_size_errors = FALSE;
11859 stub14_group_size = stub_group_size >> 10;
11860 if (stub_group_size == 1)
11862 /* Default values. */
11863 if (stubs_always_before_branch)
11865 stub_group_size = 0x1e00000;
11866 stub14_group_size = 0x7800;
11870 stub_group_size = 0x1c00000;
11871 stub14_group_size = 0x7000;
11873 suppress_size_errors = TRUE;
11876 list = htab->input_list + htab->top_index;
11879 asection *tail = *list;
11880 while (tail != NULL)
11884 bfd_size_type total;
11885 bfd_boolean big_sec;
11889 total = tail->size;
11890 big_sec = total > (ppc64_elf_section_data (tail) != NULL
11891 && ppc64_elf_section_data (tail)->has_14bit_branch
11892 ? stub14_group_size : stub_group_size);
11893 if (big_sec && !suppress_size_errors)
11894 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
11895 tail->owner, tail);
11896 curr_toc = htab->stub_group[tail->id].toc_off;
11898 while ((prev = PREV_SEC (curr)) != NULL
11899 && ((total += curr->output_offset - prev->output_offset)
11900 < (ppc64_elf_section_data (prev) != NULL
11901 && ppc64_elf_section_data (prev)->has_14bit_branch
11902 ? stub14_group_size : stub_group_size))
11903 && htab->stub_group[prev->id].toc_off == curr_toc)
11906 /* OK, the size from the start of CURR to the end is less
11907 than stub_group_size and thus can be handled by one stub
11908 section. (or the tail section is itself larger than
11909 stub_group_size, in which case we may be toast.) We
11910 should really be keeping track of the total size of stubs
11911 added here, as stubs contribute to the final output
11912 section size. That's a little tricky, and this way will
11913 only break if stubs added make the total size more than
11914 2^25, ie. for the default stub_group_size, if stubs total
11915 more than 2097152 bytes, or nearly 75000 plt call stubs. */
11918 prev = PREV_SEC (tail);
11919 /* Set up this stub group. */
11920 htab->stub_group[tail->id].link_sec = curr;
11922 while (tail != curr && (tail = prev) != NULL);
11924 /* But wait, there's more! Input sections up to stub_group_size
11925 bytes before the stub section can be handled by it too.
11926 Don't do this if we have a really large section after the
11927 stubs, as adding more stubs increases the chance that
11928 branches may not reach into the stub section. */
11929 if (!stubs_always_before_branch && !big_sec)
11932 while (prev != NULL
11933 && ((total += tail->output_offset - prev->output_offset)
11934 < (ppc64_elf_section_data (prev) != NULL
11935 && ppc64_elf_section_data (prev)->has_14bit_branch
11936 ? stub14_group_size : stub_group_size))
11937 && htab->stub_group[prev->id].toc_off == curr_toc)
11940 prev = PREV_SEC (tail);
11941 htab->stub_group[tail->id].link_sec = curr;
11947 while (list-- != htab->input_list);
11948 free (htab->input_list);
11952 static const unsigned char glink_eh_frame_cie[] =
11954 0, 0, 0, 16, /* length. */
11955 0, 0, 0, 0, /* id. */
11956 1, /* CIE version. */
11957 'z', 'R', 0, /* Augmentation string. */
11958 4, /* Code alignment. */
11959 0x78, /* Data alignment. */
11961 1, /* Augmentation size. */
11962 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
11963 DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */
11967 /* Stripping output sections is normally done before dynamic section
11968 symbols have been allocated. This function is called later, and
11969 handles cases like htab->brlt which is mapped to its own output
11973 maybe_strip_output (struct bfd_link_info *info, asection *isec)
11975 if (isec->size == 0
11976 && isec->output_section->size == 0
11977 && !(isec->output_section->flags & SEC_KEEP)
11978 && !bfd_section_removed_from_list (info->output_bfd,
11979 isec->output_section)
11980 && elf_section_data (isec->output_section)->dynindx == 0)
11982 isec->output_section->flags |= SEC_EXCLUDE;
11983 bfd_section_list_remove (info->output_bfd, isec->output_section);
11984 info->output_bfd->section_count--;
11988 /* Determine and set the size of the stub section for a final link.
11990 The basic idea here is to examine all the relocations looking for
11991 PC-relative calls to a target that is unreachable with a "bl"
11995 ppc64_elf_size_stubs (struct bfd_link_info *info)
11997 bfd_size_type stub_group_size;
11998 bfd_boolean stubs_always_before_branch;
11999 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12004 if (htab->params->plt_thread_safe == -1 && !info->executable)
12005 htab->params->plt_thread_safe = 1;
12006 if (!htab->opd_abi)
12007 htab->params->plt_thread_safe = 0;
12008 else if (htab->params->plt_thread_safe == -1)
12010 static const char *const thread_starter[] =
12014 "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE",
12016 "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio",
12017 "mq_notify", "create_timer",
12022 "GOMP_parallel_start",
12023 "GOMP_parallel_loop_static",
12024 "GOMP_parallel_loop_static_start",
12025 "GOMP_parallel_loop_dynamic",
12026 "GOMP_parallel_loop_dynamic_start",
12027 "GOMP_parallel_loop_guided",
12028 "GOMP_parallel_loop_guided_start",
12029 "GOMP_parallel_loop_runtime",
12030 "GOMP_parallel_loop_runtime_start",
12031 "GOMP_parallel_sections",
12032 "GOMP_parallel_sections_start",
12038 for (i = 0; i < sizeof (thread_starter)/ sizeof (thread_starter[0]); i++)
12040 struct elf_link_hash_entry *h;
12041 h = elf_link_hash_lookup (&htab->elf, thread_starter[i],
12042 FALSE, FALSE, TRUE);
12043 htab->params->plt_thread_safe = h != NULL && h->ref_regular;
12044 if (htab->params->plt_thread_safe)
12048 stubs_always_before_branch = htab->params->group_size < 0;
12049 if (htab->params->group_size < 0)
12050 stub_group_size = -htab->params->group_size;
12052 stub_group_size = htab->params->group_size;
12054 group_sections (htab, stub_group_size, stubs_always_before_branch);
12059 unsigned int bfd_indx;
12060 asection *stub_sec;
12062 htab->stub_iteration += 1;
12064 for (input_bfd = info->input_bfds, bfd_indx = 0;
12066 input_bfd = input_bfd->link.next, bfd_indx++)
12068 Elf_Internal_Shdr *symtab_hdr;
12070 Elf_Internal_Sym *local_syms = NULL;
12072 if (!is_ppc64_elf (input_bfd))
12075 /* We'll need the symbol table in a second. */
12076 symtab_hdr = &elf_symtab_hdr (input_bfd);
12077 if (symtab_hdr->sh_info == 0)
12080 /* Walk over each section attached to the input bfd. */
12081 for (section = input_bfd->sections;
12083 section = section->next)
12085 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
12087 /* If there aren't any relocs, then there's nothing more
12089 if ((section->flags & SEC_RELOC) == 0
12090 || (section->flags & SEC_ALLOC) == 0
12091 || (section->flags & SEC_LOAD) == 0
12092 || (section->flags & SEC_CODE) == 0
12093 || section->reloc_count == 0)
12096 /* If this section is a link-once section that will be
12097 discarded, then don't create any stubs. */
12098 if (section->output_section == NULL
12099 || section->output_section->owner != info->output_bfd)
12102 /* Get the relocs. */
12104 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
12105 info->keep_memory);
12106 if (internal_relocs == NULL)
12107 goto error_ret_free_local;
12109 /* Now examine each relocation. */
12110 irela = internal_relocs;
12111 irelaend = irela + section->reloc_count;
12112 for (; irela < irelaend; irela++)
12114 enum elf_ppc64_reloc_type r_type;
12115 unsigned int r_indx;
12116 enum ppc_stub_type stub_type;
12117 struct ppc_stub_hash_entry *stub_entry;
12118 asection *sym_sec, *code_sec;
12119 bfd_vma sym_value, code_value;
12120 bfd_vma destination;
12121 unsigned long local_off;
12122 bfd_boolean ok_dest;
12123 struct ppc_link_hash_entry *hash;
12124 struct ppc_link_hash_entry *fdh;
12125 struct elf_link_hash_entry *h;
12126 Elf_Internal_Sym *sym;
12128 const asection *id_sec;
12129 struct _opd_sec_data *opd;
12130 struct plt_entry *plt_ent;
12132 r_type = ELF64_R_TYPE (irela->r_info);
12133 r_indx = ELF64_R_SYM (irela->r_info);
12135 if (r_type >= R_PPC64_max)
12137 bfd_set_error (bfd_error_bad_value);
12138 goto error_ret_free_internal;
12141 /* Only look for stubs on branch instructions. */
12142 if (r_type != R_PPC64_REL24
12143 && r_type != R_PPC64_REL14
12144 && r_type != R_PPC64_REL14_BRTAKEN
12145 && r_type != R_PPC64_REL14_BRNTAKEN)
12148 /* Now determine the call target, its name, value,
12150 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
12151 r_indx, input_bfd))
12152 goto error_ret_free_internal;
12153 hash = (struct ppc_link_hash_entry *) h;
12160 sym_value = sym->st_value;
12163 else if (hash->elf.root.type == bfd_link_hash_defined
12164 || hash->elf.root.type == bfd_link_hash_defweak)
12166 sym_value = hash->elf.root.u.def.value;
12167 if (sym_sec->output_section != NULL)
12170 else if (hash->elf.root.type == bfd_link_hash_undefweak
12171 || hash->elf.root.type == bfd_link_hash_undefined)
12173 /* Recognise an old ABI func code entry sym, and
12174 use the func descriptor sym instead if it is
12176 if (hash->elf.root.root.string[0] == '.'
12177 && (fdh = lookup_fdh (hash, htab)) != NULL)
12179 if (fdh->elf.root.type == bfd_link_hash_defined
12180 || fdh->elf.root.type == bfd_link_hash_defweak)
12182 sym_sec = fdh->elf.root.u.def.section;
12183 sym_value = fdh->elf.root.u.def.value;
12184 if (sym_sec->output_section != NULL)
12193 bfd_set_error (bfd_error_bad_value);
12194 goto error_ret_free_internal;
12201 sym_value += irela->r_addend;
12202 destination = (sym_value
12203 + sym_sec->output_offset
12204 + sym_sec->output_section->vma);
12205 local_off = PPC64_LOCAL_ENTRY_OFFSET (hash
12210 code_sec = sym_sec;
12211 code_value = sym_value;
12212 opd = get_opd_info (sym_sec);
12217 if (hash == NULL && opd->adjust != NULL)
12219 long adjust = opd->adjust[OPD_NDX (sym_value)];
12222 code_value += adjust;
12223 sym_value += adjust;
12225 dest = opd_entry_value (sym_sec, sym_value,
12226 &code_sec, &code_value, FALSE);
12227 if (dest != (bfd_vma) -1)
12229 destination = dest;
12232 /* Fixup old ABI sym to point at code
12234 hash->elf.root.type = bfd_link_hash_defweak;
12235 hash->elf.root.u.def.section = code_sec;
12236 hash->elf.root.u.def.value = code_value;
12241 /* Determine what (if any) linker stub is needed. */
12243 stub_type = ppc_type_of_stub (section, irela, &hash,
12244 &plt_ent, destination,
12247 if (stub_type != ppc_stub_plt_call)
12249 /* Check whether we need a TOC adjusting stub.
12250 Since the linker pastes together pieces from
12251 different object files when creating the
12252 _init and _fini functions, it may be that a
12253 call to what looks like a local sym is in
12254 fact a call needing a TOC adjustment. */
12255 if (code_sec != NULL
12256 && code_sec->output_section != NULL
12257 && (htab->stub_group[code_sec->id].toc_off
12258 != htab->stub_group[section->id].toc_off)
12259 && (code_sec->has_toc_reloc
12260 || code_sec->makes_toc_func_call))
12261 stub_type = ppc_stub_long_branch_r2off;
12264 if (stub_type == ppc_stub_none)
12267 /* __tls_get_addr calls might be eliminated. */
12268 if (stub_type != ppc_stub_plt_call
12270 && (hash == htab->tls_get_addr
12271 || hash == htab->tls_get_addr_fd)
12272 && section->has_tls_reloc
12273 && irela != internal_relocs)
12275 /* Get tls info. */
12276 unsigned char *tls_mask;
12278 if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms,
12279 irela - 1, input_bfd))
12280 goto error_ret_free_internal;
12281 if (*tls_mask != 0)
12285 if (stub_type == ppc_stub_plt_call
12286 && irela + 1 < irelaend
12287 && irela[1].r_offset == irela->r_offset + 4
12288 && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE)
12290 if (!tocsave_find (htab, INSERT,
12291 &local_syms, irela + 1, input_bfd))
12292 goto error_ret_free_internal;
12294 else if (stub_type == ppc_stub_plt_call)
12295 stub_type = ppc_stub_plt_call_r2save;
12297 /* Support for grouping stub sections. */
12298 id_sec = htab->stub_group[section->id].link_sec;
12300 /* Get the name of this stub. */
12301 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
12303 goto error_ret_free_internal;
12305 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
12306 stub_name, FALSE, FALSE);
12307 if (stub_entry != NULL)
12309 /* The proper stub has already been created. */
12311 if (stub_type == ppc_stub_plt_call_r2save)
12312 stub_entry->stub_type = stub_type;
12316 stub_entry = ppc_add_stub (stub_name, section, info);
12317 if (stub_entry == NULL)
12320 error_ret_free_internal:
12321 if (elf_section_data (section)->relocs == NULL)
12322 free (internal_relocs);
12323 error_ret_free_local:
12324 if (local_syms != NULL
12325 && (symtab_hdr->contents
12326 != (unsigned char *) local_syms))
12331 stub_entry->stub_type = stub_type;
12332 if (stub_type != ppc_stub_plt_call
12333 && stub_type != ppc_stub_plt_call_r2save)
12335 stub_entry->target_value = code_value;
12336 stub_entry->target_section = code_sec;
12340 stub_entry->target_value = sym_value;
12341 stub_entry->target_section = sym_sec;
12343 stub_entry->h = hash;
12344 stub_entry->plt_ent = plt_ent;
12345 stub_entry->other = hash ? hash->elf.other : sym->st_other;
12347 if (stub_entry->h != NULL)
12348 htab->stub_globals += 1;
12351 /* We're done with the internal relocs, free them. */
12352 if (elf_section_data (section)->relocs != internal_relocs)
12353 free (internal_relocs);
12356 if (local_syms != NULL
12357 && symtab_hdr->contents != (unsigned char *) local_syms)
12359 if (!info->keep_memory)
12362 symtab_hdr->contents = (unsigned char *) local_syms;
12366 /* We may have added some stubs. Find out the new size of the
12368 for (stub_sec = htab->params->stub_bfd->sections;
12370 stub_sec = stub_sec->next)
12371 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12373 stub_sec->rawsize = stub_sec->size;
12374 stub_sec->size = 0;
12375 stub_sec->reloc_count = 0;
12376 stub_sec->flags &= ~SEC_RELOC;
12379 htab->brlt->size = 0;
12380 htab->brlt->reloc_count = 0;
12381 htab->brlt->flags &= ~SEC_RELOC;
12382 if (htab->relbrlt != NULL)
12383 htab->relbrlt->size = 0;
12385 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
12387 if (info->emitrelocations
12388 && htab->glink != NULL && htab->glink->size != 0)
12390 htab->glink->reloc_count = 1;
12391 htab->glink->flags |= SEC_RELOC;
12394 if (htab->glink_eh_frame != NULL
12395 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
12396 && htab->glink_eh_frame->output_section->size != 0)
12398 size_t size = 0, align;
12400 for (stub_sec = htab->params->stub_bfd->sections;
12402 stub_sec = stub_sec->next)
12403 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12405 if (htab->glink != NULL && htab->glink->size != 0)
12408 size += sizeof (glink_eh_frame_cie);
12410 align <<= htab->glink_eh_frame->output_section->alignment_power;
12412 size = (size + align) & ~align;
12413 htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size;
12414 htab->glink_eh_frame->size = size;
12417 if (htab->params->plt_stub_align != 0)
12418 for (stub_sec = htab->params->stub_bfd->sections;
12420 stub_sec = stub_sec->next)
12421 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12422 stub_sec->size = ((stub_sec->size
12423 + (1 << htab->params->plt_stub_align) - 1)
12424 & (-1 << htab->params->plt_stub_align));
12426 for (stub_sec = htab->params->stub_bfd->sections;
12428 stub_sec = stub_sec->next)
12429 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
12430 && stub_sec->rawsize != stub_sec->size)
12433 /* Exit from this loop when no stubs have been added, and no stubs
12434 have changed size. */
12435 if (stub_sec == NULL
12436 && (htab->glink_eh_frame == NULL
12437 || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size))
12440 /* Ask the linker to do its stuff. */
12441 (*htab->params->layout_sections_again) ();
12444 if (htab->glink_eh_frame != NULL
12445 && htab->glink_eh_frame->size != 0)
12448 bfd_byte *p, *last_fde;
12449 size_t last_fde_len, size, align, pad;
12450 asection *stub_sec;
12452 p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size);
12455 htab->glink_eh_frame->contents = p;
12458 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
12459 /* CIE length (rewrite in case little-endian). */
12460 last_fde_len = sizeof (glink_eh_frame_cie) - 4;
12461 bfd_put_32 (htab->elf.dynobj, last_fde_len, p);
12462 p += sizeof (glink_eh_frame_cie);
12464 for (stub_sec = htab->params->stub_bfd->sections;
12466 stub_sec = stub_sec->next)
12467 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12472 bfd_put_32 (htab->elf.dynobj, 20, p);
12475 val = p - htab->glink_eh_frame->contents;
12476 bfd_put_32 (htab->elf.dynobj, val, p);
12478 /* Offset to stub section, written later. */
12480 /* stub section size. */
12481 bfd_put_32 (htab->elf.dynobj, stub_sec->size, p);
12483 /* Augmentation. */
12488 if (htab->glink != NULL && htab->glink->size != 0)
12493 bfd_put_32 (htab->elf.dynobj, 20, p);
12496 val = p - htab->glink_eh_frame->contents;
12497 bfd_put_32 (htab->elf.dynobj, val, p);
12499 /* Offset to .glink, written later. */
12502 bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p);
12504 /* Augmentation. */
12507 *p++ = DW_CFA_advance_loc + 1;
12508 *p++ = DW_CFA_register;
12511 *p++ = DW_CFA_advance_loc + 4;
12512 *p++ = DW_CFA_restore_extended;
12515 /* Subsume any padding into the last FDE if user .eh_frame
12516 sections are aligned more than glink_eh_frame. Otherwise any
12517 zero padding will be seen as a terminator. */
12518 size = p - htab->glink_eh_frame->contents;
12520 align <<= htab->glink_eh_frame->output_section->alignment_power;
12522 pad = ((size + align) & ~align) - size;
12523 htab->glink_eh_frame->size = size + pad;
12524 bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde);
12527 maybe_strip_output (info, htab->brlt);
12528 if (htab->glink_eh_frame != NULL)
12529 maybe_strip_output (info, htab->glink_eh_frame);
12534 /* Called after we have determined section placement. If sections
12535 move, we'll be called again. Provide a value for TOCstart. */
12538 ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd)
12541 bfd_vma TOCstart, adjust;
12543 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
12544 order. The TOC starts where the first of these sections starts. */
12545 s = bfd_get_section_by_name (obfd, ".got");
12546 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
12547 s = bfd_get_section_by_name (obfd, ".toc");
12548 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
12549 s = bfd_get_section_by_name (obfd, ".tocbss");
12550 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
12551 s = bfd_get_section_by_name (obfd, ".plt");
12552 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
12554 /* This may happen for
12555 o references to TOC base (SYM@toc / TOC[tc0]) without a
12557 o bad linker script
12558 o --gc-sections and empty TOC sections
12560 FIXME: Warn user? */
12562 /* Look for a likely section. We probably won't even be
12564 for (s = obfd->sections; s != NULL; s = s->next)
12565 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY
12567 == (SEC_ALLOC | SEC_SMALL_DATA))
12570 for (s = obfd->sections; s != NULL; s = s->next)
12571 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE))
12572 == (SEC_ALLOC | SEC_SMALL_DATA))
12575 for (s = obfd->sections; s != NULL; s = s->next)
12576 if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE))
12580 for (s = obfd->sections; s != NULL; s = s->next)
12581 if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC)
12587 TOCstart = s->output_section->vma + s->output_offset;
12589 /* Force alignment. */
12590 adjust = TOCstart & (TOC_BASE_ALIGN - 1);
12591 TOCstart -= adjust;
12592 _bfd_set_gp_value (obfd, TOCstart);
12594 if (info != NULL && s != NULL)
12596 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12600 if (htab->elf.hgot != NULL)
12602 htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust;
12603 htab->elf.hgot->root.u.def.section = s;
12608 struct bfd_link_hash_entry *bh = NULL;
12609 _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL,
12610 s, TOC_BASE_OFF - adjust,
12611 NULL, FALSE, FALSE, &bh);
12617 /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to
12618 write out any global entry stubs. */
12621 build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
12623 struct bfd_link_info *info;
12624 struct ppc_link_hash_table *htab;
12625 struct plt_entry *pent;
12628 if (h->root.type == bfd_link_hash_indirect)
12631 if (!h->pointer_equality_needed)
12634 if (h->def_regular)
12638 htab = ppc_hash_table (info);
12643 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
12644 if (pent->plt.offset != (bfd_vma) -1
12645 && pent->addend == 0)
12651 p = s->contents + h->root.u.def.value;
12652 plt = htab->elf.splt;
12653 if (!htab->elf.dynamic_sections_created
12654 || h->dynindx == -1)
12655 plt = htab->elf.iplt;
12656 off = pent->plt.offset + plt->output_offset + plt->output_section->vma;
12657 off -= h->root.u.def.value + s->output_offset + s->output_section->vma;
12659 if (off + 0x80008000 > 0xffffffff || (off & 3) != 0)
12661 info->callbacks->einfo
12662 (_("%P: linkage table error against `%T'\n"),
12663 h->root.root.string);
12664 bfd_set_error (bfd_error_bad_value);
12665 htab->stub_error = TRUE;
12668 htab->stub_count[ppc_stub_global_entry - 1] += 1;
12669 if (htab->params->emit_stub_syms)
12671 size_t len = strlen (h->root.root.string);
12672 char *name = bfd_malloc (sizeof "12345678.global_entry." + len);
12677 sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string);
12678 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
12681 if (h->root.type == bfd_link_hash_new)
12683 h->root.type = bfd_link_hash_defined;
12684 h->root.u.def.section = s;
12685 h->root.u.def.value = p - s->contents;
12686 h->ref_regular = 1;
12687 h->def_regular = 1;
12688 h->ref_regular_nonweak = 1;
12689 h->forced_local = 1;
12691 h->root.linker_def = 1;
12695 if (PPC_HA (off) != 0)
12697 bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p);
12700 bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p);
12702 bfd_put_32 (s->owner, MTCTR_R12, p);
12704 bfd_put_32 (s->owner, BCTR, p);
12710 /* Build all the stubs associated with the current output file.
12711 The stubs are kept in a hash table attached to the main linker
12712 hash table. This function is called via gldelf64ppc_finish. */
12715 ppc64_elf_build_stubs (struct bfd_link_info *info,
12718 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12719 asection *stub_sec;
12721 int stub_sec_count = 0;
12726 /* Allocate memory to hold the linker stubs. */
12727 for (stub_sec = htab->params->stub_bfd->sections;
12729 stub_sec = stub_sec->next)
12730 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
12731 && stub_sec->size != 0)
12733 stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size);
12734 if (stub_sec->contents == NULL)
12736 /* We want to check that built size is the same as calculated
12737 size. rawsize is a convenient location to use. */
12738 stub_sec->rawsize = stub_sec->size;
12739 stub_sec->size = 0;
12742 if (htab->glink != NULL && htab->glink->size != 0)
12747 /* Build the .glink plt call stub. */
12748 if (htab->params->emit_stub_syms)
12750 struct elf_link_hash_entry *h;
12751 h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
12752 TRUE, FALSE, FALSE);
12755 if (h->root.type == bfd_link_hash_new)
12757 h->root.type = bfd_link_hash_defined;
12758 h->root.u.def.section = htab->glink;
12759 h->root.u.def.value = 8;
12760 h->ref_regular = 1;
12761 h->def_regular = 1;
12762 h->ref_regular_nonweak = 1;
12763 h->forced_local = 1;
12765 h->root.linker_def = 1;
12768 plt0 = (htab->elf.splt->output_section->vma
12769 + htab->elf.splt->output_offset
12771 if (info->emitrelocations)
12773 Elf_Internal_Rela *r = get_relocs (htab->glink, 1);
12776 r->r_offset = (htab->glink->output_offset
12777 + htab->glink->output_section->vma);
12778 r->r_info = ELF64_R_INFO (0, R_PPC64_REL64);
12779 r->r_addend = plt0;
12781 p = htab->glink->contents;
12782 plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
12783 bfd_put_64 (htab->glink->owner, plt0, p);
12787 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
12789 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
12791 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
12793 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
12795 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
12797 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
12799 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
12801 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p);
12803 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
12805 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p);
12810 bfd_put_32 (htab->glink->owner, MFLR_R0, p);
12812 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
12814 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
12816 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
12818 bfd_put_32 (htab->glink->owner, MTLR_R0, p);
12820 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
12822 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
12824 bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p);
12826 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
12828 bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p);
12830 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
12832 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p);
12835 bfd_put_32 (htab->glink->owner, BCTR, p);
12837 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
12839 bfd_put_32 (htab->glink->owner, NOP, p);
12843 /* Build the .glink lazy link call stubs. */
12845 while (p < htab->glink->contents + htab->glink->rawsize)
12851 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
12856 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
12858 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx),
12863 bfd_put_32 (htab->glink->owner,
12864 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
12869 /* Build .glink global entry stubs. */
12870 if (htab->glink->size > htab->glink->rawsize)
12871 elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info);
12874 if (htab->brlt != NULL && htab->brlt->size != 0)
12876 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
12878 if (htab->brlt->contents == NULL)
12881 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
12883 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
12884 htab->relbrlt->size);
12885 if (htab->relbrlt->contents == NULL)
12889 /* Build the stubs as directed by the stub hash table. */
12890 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
12892 if (htab->relbrlt != NULL)
12893 htab->relbrlt->reloc_count = 0;
12895 if (htab->params->plt_stub_align != 0)
12896 for (stub_sec = htab->params->stub_bfd->sections;
12898 stub_sec = stub_sec->next)
12899 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12900 stub_sec->size = ((stub_sec->size
12901 + (1 << htab->params->plt_stub_align) - 1)
12902 & (-1 << htab->params->plt_stub_align));
12904 for (stub_sec = htab->params->stub_bfd->sections;
12906 stub_sec = stub_sec->next)
12907 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12909 stub_sec_count += 1;
12910 if (stub_sec->rawsize != stub_sec->size)
12914 /* Note that the glink_eh_frame check here is not only testing that
12915 the generated size matched the calculated size but also that
12916 bfd_elf_discard_info didn't make any changes to the section. */
12917 if (stub_sec != NULL
12918 || (htab->glink_eh_frame != NULL
12919 && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size))
12921 htab->stub_error = TRUE;
12922 info->callbacks->einfo (_("%P: stubs don't match calculated size\n"));
12925 if (htab->stub_error)
12930 *stats = bfd_malloc (500);
12931 if (*stats == NULL)
12934 sprintf (*stats, _("linker stubs in %u group%s\n"
12936 " toc adjust %lu\n"
12937 " long branch %lu\n"
12938 " long toc adj %lu\n"
12940 " plt call toc %lu\n"
12941 " global entry %lu"),
12943 stub_sec_count == 1 ? "" : "s",
12944 htab->stub_count[ppc_stub_long_branch - 1],
12945 htab->stub_count[ppc_stub_long_branch_r2off - 1],
12946 htab->stub_count[ppc_stub_plt_branch - 1],
12947 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
12948 htab->stub_count[ppc_stub_plt_call - 1],
12949 htab->stub_count[ppc_stub_plt_call_r2save - 1],
12950 htab->stub_count[ppc_stub_global_entry - 1]);
12955 /* This function undoes the changes made by add_symbol_adjust. */
12958 undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
12960 struct ppc_link_hash_entry *eh;
12962 if (h->root.type == bfd_link_hash_indirect)
12965 eh = (struct ppc_link_hash_entry *) h;
12966 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
12969 eh->elf.root.type = bfd_link_hash_undefined;
12974 ppc64_elf_restore_symbols (struct bfd_link_info *info)
12976 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12979 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
12982 /* What to do when ld finds relocations against symbols defined in
12983 discarded sections. */
12985 static unsigned int
12986 ppc64_elf_action_discarded (asection *sec)
12988 if (strcmp (".opd", sec->name) == 0)
12991 if (strcmp (".toc", sec->name) == 0)
12994 if (strcmp (".toc1", sec->name) == 0)
12997 return _bfd_elf_default_action_discarded (sec);
13000 /* The RELOCATE_SECTION function is called by the ELF backend linker
13001 to handle the relocations for a section.
13003 The relocs are always passed as Rela structures; if the section
13004 actually uses Rel structures, the r_addend field will always be
13007 This function is responsible for adjust the section contents as
13008 necessary, and (if using Rela relocs and generating a
13009 relocatable output file) adjusting the reloc addend as
13012 This function does not have to worry about setting the reloc
13013 address or the reloc symbol index.
13015 LOCAL_SYMS is a pointer to the swapped in local symbols.
13017 LOCAL_SECTIONS is an array giving the section in the input file
13018 corresponding to the st_shndx field of each local symbol.
13020 The global hash table entry for the global symbols can be found
13021 via elf_sym_hashes (input_bfd).
13023 When generating relocatable output, this function must handle
13024 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
13025 going to be the section symbol corresponding to the output
13026 section, which means that the addend must be adjusted
13030 ppc64_elf_relocate_section (bfd *output_bfd,
13031 struct bfd_link_info *info,
13033 asection *input_section,
13034 bfd_byte *contents,
13035 Elf_Internal_Rela *relocs,
13036 Elf_Internal_Sym *local_syms,
13037 asection **local_sections)
13039 struct ppc_link_hash_table *htab;
13040 Elf_Internal_Shdr *symtab_hdr;
13041 struct elf_link_hash_entry **sym_hashes;
13042 Elf_Internal_Rela *rel;
13043 Elf_Internal_Rela *relend;
13044 Elf_Internal_Rela outrel;
13046 struct got_entry **local_got_ents;
13048 bfd_boolean ret = TRUE;
13049 bfd_boolean is_opd;
13050 /* Assume 'at' branch hints. */
13051 bfd_boolean is_isa_v2 = TRUE;
13052 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
13054 /* Initialize howto table if needed. */
13055 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
13058 htab = ppc_hash_table (info);
13062 /* Don't relocate stub sections. */
13063 if (input_section->owner == htab->params->stub_bfd)
13066 BFD_ASSERT (is_ppc64_elf (input_bfd));
13068 local_got_ents = elf_local_got_ents (input_bfd);
13069 TOCstart = elf_gp (output_bfd);
13070 symtab_hdr = &elf_symtab_hdr (input_bfd);
13071 sym_hashes = elf_sym_hashes (input_bfd);
13072 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
13075 relend = relocs + input_section->reloc_count;
13076 for (; rel < relend; rel++)
13078 enum elf_ppc64_reloc_type r_type;
13080 bfd_reloc_status_type r;
13081 Elf_Internal_Sym *sym;
13083 struct elf_link_hash_entry *h_elf;
13084 struct ppc_link_hash_entry *h;
13085 struct ppc_link_hash_entry *fdh;
13086 const char *sym_name;
13087 unsigned long r_symndx, toc_symndx;
13088 bfd_vma toc_addend;
13089 unsigned char tls_mask, tls_gd, tls_type;
13090 unsigned char sym_type;
13091 bfd_vma relocation;
13092 bfd_boolean unresolved_reloc;
13093 bfd_boolean warned;
13094 enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest;
13097 struct ppc_stub_hash_entry *stub_entry;
13098 bfd_vma max_br_offset;
13100 const Elf_Internal_Rela orig_rel = *rel;
13101 reloc_howto_type *howto;
13102 struct reloc_howto_struct alt_howto;
13104 r_type = ELF64_R_TYPE (rel->r_info);
13105 r_symndx = ELF64_R_SYM (rel->r_info);
13107 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
13108 symbol of the previous ADDR64 reloc. The symbol gives us the
13109 proper TOC base to use. */
13110 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
13112 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
13114 r_symndx = ELF64_R_SYM (rel[-1].r_info);
13120 unresolved_reloc = FALSE;
13123 if (r_symndx < symtab_hdr->sh_info)
13125 /* It's a local symbol. */
13126 struct _opd_sec_data *opd;
13128 sym = local_syms + r_symndx;
13129 sec = local_sections[r_symndx];
13130 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
13131 sym_type = ELF64_ST_TYPE (sym->st_info);
13132 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
13133 opd = get_opd_info (sec);
13134 if (opd != NULL && opd->adjust != NULL)
13136 long adjust = opd->adjust[OPD_NDX (sym->st_value
13142 /* If this is a relocation against the opd section sym
13143 and we have edited .opd, adjust the reloc addend so
13144 that ld -r and ld --emit-relocs output is correct.
13145 If it is a reloc against some other .opd symbol,
13146 then the symbol value will be adjusted later. */
13147 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
13148 rel->r_addend += adjust;
13150 relocation += adjust;
13156 bfd_boolean ignored;
13158 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
13159 r_symndx, symtab_hdr, sym_hashes,
13160 h_elf, sec, relocation,
13161 unresolved_reloc, warned, ignored);
13162 sym_name = h_elf->root.root.string;
13163 sym_type = h_elf->type;
13165 && sec->owner == output_bfd
13166 && strcmp (sec->name, ".opd") == 0)
13168 /* This is a symbol defined in a linker script. All
13169 such are defined in output sections, even those
13170 defined by simple assignment from a symbol defined in
13171 an input section. Transfer the symbol to an
13172 appropriate input .opd section, so that a branch to
13173 this symbol will be mapped to the location specified
13174 by the opd entry. */
13175 struct bfd_link_order *lo;
13176 for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next)
13177 if (lo->type == bfd_indirect_link_order)
13179 asection *isec = lo->u.indirect.section;
13180 if (h_elf->root.u.def.value >= isec->output_offset
13181 && h_elf->root.u.def.value < (isec->output_offset
13184 h_elf->root.u.def.value -= isec->output_offset;
13185 h_elf->root.u.def.section = isec;
13192 h = (struct ppc_link_hash_entry *) h_elf;
13194 if (sec != NULL && discarded_section (sec))
13195 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
13197 ppc64_elf_howto_table[r_type], 0,
13200 if (info->relocatable)
13203 if (h != NULL && &h->elf == htab->elf.hgot)
13205 relocation = (TOCstart
13206 + htab->stub_group[input_section->id].toc_off);
13207 sec = bfd_abs_section_ptr;
13208 unresolved_reloc = FALSE;
13211 /* TLS optimizations. Replace instruction sequences and relocs
13212 based on information we collected in tls_optimize. We edit
13213 RELOCS so that --emit-relocs will output something sensible
13214 for the final instruction stream. */
13219 tls_mask = h->tls_mask;
13220 else if (local_got_ents != NULL)
13222 struct plt_entry **local_plt = (struct plt_entry **)
13223 (local_got_ents + symtab_hdr->sh_info);
13224 unsigned char *lgot_masks = (unsigned char *)
13225 (local_plt + symtab_hdr->sh_info);
13226 tls_mask = lgot_masks[r_symndx];
13229 && (r_type == R_PPC64_TLS
13230 || r_type == R_PPC64_TLSGD
13231 || r_type == R_PPC64_TLSLD))
13233 /* Check for toc tls entries. */
13234 unsigned char *toc_tls;
13236 if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13237 &local_syms, rel, input_bfd))
13241 tls_mask = *toc_tls;
13244 /* Check that tls relocs are used with tls syms, and non-tls
13245 relocs are used with non-tls syms. */
13246 if (r_symndx != STN_UNDEF
13247 && r_type != R_PPC64_NONE
13249 || h->elf.root.type == bfd_link_hash_defined
13250 || h->elf.root.type == bfd_link_hash_defweak)
13251 && (IS_PPC64_TLS_RELOC (r_type)
13252 != (sym_type == STT_TLS
13253 || (sym_type == STT_SECTION
13254 && (sec->flags & SEC_THREAD_LOCAL) != 0))))
13257 && (r_type == R_PPC64_TLS
13258 || r_type == R_PPC64_TLSGD
13259 || r_type == R_PPC64_TLSLD))
13260 /* R_PPC64_TLS is OK against a symbol in the TOC. */
13263 info->callbacks->einfo
13264 (!IS_PPC64_TLS_RELOC (r_type)
13265 ? _("%P: %H: %s used with TLS symbol `%T'\n")
13266 : _("%P: %H: %s used with non-TLS symbol `%T'\n"),
13267 input_bfd, input_section, rel->r_offset,
13268 ppc64_elf_howto_table[r_type]->name,
13272 /* Ensure reloc mapping code below stays sane. */
13273 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
13274 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
13275 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
13276 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
13277 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
13278 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
13279 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
13280 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
13281 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
13282 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
13290 case R_PPC64_LO_DS_OPT:
13291 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
13292 if ((insn & (0x3f << 26)) != 58u << 26)
13294 insn += (14u << 26) - (58u << 26);
13295 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
13296 r_type = R_PPC64_TOC16_LO;
13297 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13300 case R_PPC64_TOC16:
13301 case R_PPC64_TOC16_LO:
13302 case R_PPC64_TOC16_DS:
13303 case R_PPC64_TOC16_LO_DS:
13305 /* Check for toc tls entries. */
13306 unsigned char *toc_tls;
13309 retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13310 &local_syms, rel, input_bfd);
13316 tls_mask = *toc_tls;
13317 if (r_type == R_PPC64_TOC16_DS
13318 || r_type == R_PPC64_TOC16_LO_DS)
13321 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
13326 /* If we found a GD reloc pair, then we might be
13327 doing a GD->IE transition. */
13330 tls_gd = TLS_TPRELGD;
13331 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13334 else if (retval == 3)
13336 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13344 case R_PPC64_GOT_TPREL16_HI:
13345 case R_PPC64_GOT_TPREL16_HA:
13347 && (tls_mask & TLS_TPREL) == 0)
13349 rel->r_offset -= d_offset;
13350 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
13351 r_type = R_PPC64_NONE;
13352 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13356 case R_PPC64_GOT_TPREL16_DS:
13357 case R_PPC64_GOT_TPREL16_LO_DS:
13359 && (tls_mask & TLS_TPREL) == 0)
13362 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
13364 insn |= 0x3c0d0000; /* addis 0,13,0 */
13365 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
13366 r_type = R_PPC64_TPREL16_HA;
13367 if (toc_symndx != 0)
13369 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
13370 rel->r_addend = toc_addend;
13371 /* We changed the symbol. Start over in order to
13372 get h, sym, sec etc. right. */
13377 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13383 && (tls_mask & TLS_TPREL) == 0)
13385 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
13386 insn = _bfd_elf_ppc_at_tls_transform (insn, 13);
13389 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
13390 /* Was PPC64_TLS which sits on insn boundary, now
13391 PPC64_TPREL16_LO which is at low-order half-word. */
13392 rel->r_offset += d_offset;
13393 r_type = R_PPC64_TPREL16_LO;
13394 if (toc_symndx != 0)
13396 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
13397 rel->r_addend = toc_addend;
13398 /* We changed the symbol. Start over in order to
13399 get h, sym, sec etc. right. */
13404 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13408 case R_PPC64_GOT_TLSGD16_HI:
13409 case R_PPC64_GOT_TLSGD16_HA:
13410 tls_gd = TLS_TPRELGD;
13411 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13415 case R_PPC64_GOT_TLSLD16_HI:
13416 case R_PPC64_GOT_TLSLD16_HA:
13417 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13420 if ((tls_mask & tls_gd) != 0)
13421 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13422 + R_PPC64_GOT_TPREL16_DS);
13425 rel->r_offset -= d_offset;
13426 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
13427 r_type = R_PPC64_NONE;
13429 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13433 case R_PPC64_GOT_TLSGD16:
13434 case R_PPC64_GOT_TLSGD16_LO:
13435 tls_gd = TLS_TPRELGD;
13436 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13440 case R_PPC64_GOT_TLSLD16:
13441 case R_PPC64_GOT_TLSLD16_LO:
13442 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13444 unsigned int insn1, insn2, insn3;
13448 offset = (bfd_vma) -1;
13449 /* If not using the newer R_PPC64_TLSGD/LD to mark
13450 __tls_get_addr calls, we must trust that the call
13451 stays with its arg setup insns, ie. that the next
13452 reloc is the __tls_get_addr call associated with
13453 the current reloc. Edit both insns. */
13454 if (input_section->has_tls_get_addr_call
13455 && rel + 1 < relend
13456 && branch_reloc_hash_match (input_bfd, rel + 1,
13457 htab->tls_get_addr,
13458 htab->tls_get_addr_fd))
13459 offset = rel[1].r_offset;
13460 /* We read the low GOT_TLS (or TOC16) insn because we
13461 need to keep the destination reg. It may be
13462 something other than the usual r3, and moved to r3
13463 before the call by intervening code. */
13464 insn1 = bfd_get_32 (output_bfd,
13465 contents + rel->r_offset - d_offset);
13466 if ((tls_mask & tls_gd) != 0)
13469 insn1 &= (0x1f << 21) | (0x1f << 16);
13470 insn1 |= 58 << 26; /* ld */
13471 insn2 = 0x7c636a14; /* add 3,3,13 */
13472 if (offset != (bfd_vma) -1)
13473 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
13474 if ((tls_mask & TLS_EXPLICIT) == 0)
13475 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13476 + R_PPC64_GOT_TPREL16_DS);
13478 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
13479 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13484 insn1 &= 0x1f << 21;
13485 insn1 |= 0x3c0d0000; /* addis r,13,0 */
13486 insn2 = 0x38630000; /* addi 3,3,0 */
13489 /* Was an LD reloc. */
13491 sec = local_sections[toc_symndx];
13493 r_symndx < symtab_hdr->sh_info;
13495 if (local_sections[r_symndx] == sec)
13497 if (r_symndx >= symtab_hdr->sh_info)
13498 r_symndx = STN_UNDEF;
13499 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
13500 if (r_symndx != STN_UNDEF)
13501 rel->r_addend -= (local_syms[r_symndx].st_value
13502 + sec->output_offset
13503 + sec->output_section->vma);
13505 else if (toc_symndx != 0)
13507 r_symndx = toc_symndx;
13508 rel->r_addend = toc_addend;
13510 r_type = R_PPC64_TPREL16_HA;
13511 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13512 if (offset != (bfd_vma) -1)
13514 rel[1].r_info = ELF64_R_INFO (r_symndx,
13515 R_PPC64_TPREL16_LO);
13516 rel[1].r_offset = offset + d_offset;
13517 rel[1].r_addend = rel->r_addend;
13520 bfd_put_32 (output_bfd, insn1,
13521 contents + rel->r_offset - d_offset);
13522 if (offset != (bfd_vma) -1)
13524 insn3 = bfd_get_32 (output_bfd,
13525 contents + offset + 4);
13527 || insn3 == CROR_151515 || insn3 == CROR_313131)
13529 rel[1].r_offset += 4;
13530 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13533 bfd_put_32 (output_bfd, insn2, contents + offset);
13535 if ((tls_mask & tls_gd) == 0
13536 && (tls_gd == 0 || toc_symndx != 0))
13538 /* We changed the symbol. Start over in order
13539 to get h, sym, sec etc. right. */
13546 case R_PPC64_TLSGD:
13547 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13549 unsigned int insn2, insn3;
13550 bfd_vma offset = rel->r_offset;
13552 if ((tls_mask & TLS_TPRELGD) != 0)
13555 r_type = R_PPC64_NONE;
13556 insn2 = 0x7c636a14; /* add 3,3,13 */
13561 if (toc_symndx != 0)
13563 r_symndx = toc_symndx;
13564 rel->r_addend = toc_addend;
13566 r_type = R_PPC64_TPREL16_LO;
13567 rel->r_offset = offset + d_offset;
13568 insn2 = 0x38630000; /* addi 3,3,0 */
13570 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13571 /* Zap the reloc on the _tls_get_addr call too. */
13572 BFD_ASSERT (offset == rel[1].r_offset);
13573 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
13574 insn3 = bfd_get_32 (output_bfd,
13575 contents + offset + 4);
13577 || insn3 == CROR_151515 || insn3 == CROR_313131)
13579 rel->r_offset += 4;
13580 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13583 bfd_put_32 (output_bfd, insn2, contents + offset);
13584 if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0)
13592 case R_PPC64_TLSLD:
13593 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13595 unsigned int insn2, insn3;
13596 bfd_vma offset = rel->r_offset;
13599 sec = local_sections[toc_symndx];
13601 r_symndx < symtab_hdr->sh_info;
13603 if (local_sections[r_symndx] == sec)
13605 if (r_symndx >= symtab_hdr->sh_info)
13606 r_symndx = STN_UNDEF;
13607 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
13608 if (r_symndx != STN_UNDEF)
13609 rel->r_addend -= (local_syms[r_symndx].st_value
13610 + sec->output_offset
13611 + sec->output_section->vma);
13613 r_type = R_PPC64_TPREL16_LO;
13614 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13615 rel->r_offset = offset + d_offset;
13616 /* Zap the reloc on the _tls_get_addr call too. */
13617 BFD_ASSERT (offset == rel[1].r_offset);
13618 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
13619 insn2 = 0x38630000; /* addi 3,3,0 */
13620 insn3 = bfd_get_32 (output_bfd,
13621 contents + offset + 4);
13623 || insn3 == CROR_151515 || insn3 == CROR_313131)
13625 rel->r_offset += 4;
13626 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13629 bfd_put_32 (output_bfd, insn2, contents + offset);
13635 case R_PPC64_DTPMOD64:
13636 if (rel + 1 < relend
13637 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
13638 && rel[1].r_offset == rel->r_offset + 8)
13640 if ((tls_mask & TLS_GD) == 0)
13642 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
13643 if ((tls_mask & TLS_TPRELGD) != 0)
13644 r_type = R_PPC64_TPREL64;
13647 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
13648 r_type = R_PPC64_NONE;
13650 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13655 if ((tls_mask & TLS_LD) == 0)
13657 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
13658 r_type = R_PPC64_NONE;
13659 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13664 case R_PPC64_TPREL64:
13665 if ((tls_mask & TLS_TPREL) == 0)
13667 r_type = R_PPC64_NONE;
13668 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13672 case R_PPC64_REL16_HA:
13673 /* If we are generating a non-PIC executable, edit
13674 . 0: addis 2,12,.TOC.-0b@ha
13675 . addi 2,2,.TOC.-0b@l
13676 used by ELFv2 global entry points to set up r2, to
13679 if .TOC. is in range. */
13681 && !info->traditional_format
13682 && h != NULL && &h->elf == htab->elf.hgot
13683 && rel + 1 < relend
13684 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO)
13685 && rel[1].r_offset == rel->r_offset + 4
13686 && rel[1].r_addend == rel->r_addend + 4
13687 && relocation + 0x80008000 <= 0xffffffff)
13689 unsigned int insn1, insn2;
13690 bfd_vma offset = rel->r_offset - d_offset;
13691 insn1 = bfd_get_32 (output_bfd, contents + offset);
13692 insn2 = bfd_get_32 (output_bfd, contents + offset + 4);
13693 if ((insn1 & 0xffff0000) == 0x3c4c0000 /* addis 2,12 */
13694 && (insn2 & 0xffff0000) == 0x38420000 /* addi 2,2 */)
13696 r_type = R_PPC64_ADDR16_HA;
13697 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13698 rel->r_addend -= d_offset;
13699 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO);
13700 rel[1].r_addend -= d_offset + 4;
13701 bfd_put_32 (output_bfd, 0x3c400000, contents + offset);
13707 /* Handle other relocations that tweak non-addend part of insn. */
13709 max_br_offset = 1 << 25;
13710 addend = rel->r_addend;
13711 reloc_dest = DEST_NORMAL;
13717 case R_PPC64_TOCSAVE:
13718 if (relocation + addend == (rel->r_offset
13719 + input_section->output_offset
13720 + input_section->output_section->vma)
13721 && tocsave_find (htab, NO_INSERT,
13722 &local_syms, rel, input_bfd))
13724 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
13726 || insn == CROR_151515 || insn == CROR_313131)
13727 bfd_put_32 (input_bfd,
13728 STD_R2_0R1 + STK_TOC (htab),
13729 contents + rel->r_offset);
13733 /* Branch taken prediction relocations. */
13734 case R_PPC64_ADDR14_BRTAKEN:
13735 case R_PPC64_REL14_BRTAKEN:
13736 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
13739 /* Branch not taken prediction relocations. */
13740 case R_PPC64_ADDR14_BRNTAKEN:
13741 case R_PPC64_REL14_BRNTAKEN:
13742 insn |= bfd_get_32 (output_bfd,
13743 contents + rel->r_offset) & ~(0x01 << 21);
13746 case R_PPC64_REL14:
13747 max_br_offset = 1 << 15;
13750 case R_PPC64_REL24:
13751 /* Calls to functions with a different TOC, such as calls to
13752 shared objects, need to alter the TOC pointer. This is
13753 done using a linkage stub. A REL24 branching to these
13754 linkage stubs needs to be followed by a nop, as the nop
13755 will be replaced with an instruction to restore the TOC
13760 && h->oh->is_func_descriptor)
13761 fdh = ppc_follow_link (h->oh);
13762 stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel,
13764 if (stub_entry != NULL
13765 && (stub_entry->stub_type == ppc_stub_plt_call
13766 || stub_entry->stub_type == ppc_stub_plt_call_r2save
13767 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
13768 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
13770 bfd_boolean can_plt_call = FALSE;
13772 /* All of these stubs will modify r2, so there must be a
13773 branch and link followed by a nop. The nop is
13774 replaced by an insn to restore r2. */
13775 if (rel->r_offset + 8 <= input_section->size)
13779 br = bfd_get_32 (input_bfd,
13780 contents + rel->r_offset);
13785 nop = bfd_get_32 (input_bfd,
13786 contents + rel->r_offset + 4);
13788 || nop == CROR_151515 || nop == CROR_313131)
13791 && (h == htab->tls_get_addr_fd
13792 || h == htab->tls_get_addr)
13793 && !htab->params->no_tls_get_addr_opt)
13795 /* Special stub used, leave nop alone. */
13798 bfd_put_32 (input_bfd,
13799 LD_R2_0R1 + STK_TOC (htab),
13800 contents + rel->r_offset + 4);
13801 can_plt_call = TRUE;
13806 if (!can_plt_call && h != NULL)
13808 const char *name = h->elf.root.root.string;
13813 if (strncmp (name, "__libc_start_main", 17) == 0
13814 && (name[17] == 0 || name[17] == '@'))
13816 /* Allow crt1 branch to go via a toc adjusting
13817 stub. Other calls that never return could do
13818 the same, if we could detect such. */
13819 can_plt_call = TRUE;
13825 /* g++ as of 20130507 emits self-calls without a
13826 following nop. This is arguably wrong since we
13827 have conflicting information. On the one hand a
13828 global symbol and on the other a local call
13829 sequence, but don't error for this special case.
13830 It isn't possible to cheaply verify we have
13831 exactly such a call. Allow all calls to the same
13833 asection *code_sec = sec;
13835 if (get_opd_info (sec) != NULL)
13837 bfd_vma off = (relocation + addend
13838 - sec->output_section->vma
13839 - sec->output_offset);
13841 opd_entry_value (sec, off, &code_sec, NULL, FALSE);
13843 if (code_sec == input_section)
13844 can_plt_call = TRUE;
13849 if (stub_entry->stub_type == ppc_stub_plt_call
13850 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
13851 info->callbacks->einfo
13852 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
13853 "recompile with -fPIC\n"),
13854 input_bfd, input_section, rel->r_offset, sym_name);
13856 info->callbacks->einfo
13857 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
13858 "(-mcmodel=small toc adjust stub)\n"),
13859 input_bfd, input_section, rel->r_offset, sym_name);
13861 bfd_set_error (bfd_error_bad_value);
13866 && (stub_entry->stub_type == ppc_stub_plt_call
13867 || stub_entry->stub_type == ppc_stub_plt_call_r2save))
13868 unresolved_reloc = FALSE;
13871 if ((stub_entry == NULL
13872 || stub_entry->stub_type == ppc_stub_long_branch
13873 || stub_entry->stub_type == ppc_stub_plt_branch)
13874 && get_opd_info (sec) != NULL)
13876 /* The branch destination is the value of the opd entry. */
13877 bfd_vma off = (relocation + addend
13878 - sec->output_section->vma
13879 - sec->output_offset);
13880 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE);
13881 if (dest != (bfd_vma) -1)
13885 reloc_dest = DEST_OPD;
13889 /* If the branch is out of reach we ought to have a long
13891 from = (rel->r_offset
13892 + input_section->output_offset
13893 + input_section->output_section->vma);
13895 relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh
13899 if (stub_entry != NULL
13900 && (stub_entry->stub_type == ppc_stub_long_branch
13901 || stub_entry->stub_type == ppc_stub_plt_branch)
13902 && (r_type == R_PPC64_ADDR14_BRTAKEN
13903 || r_type == R_PPC64_ADDR14_BRNTAKEN
13904 || (relocation + addend - from + max_br_offset
13905 < 2 * max_br_offset)))
13906 /* Don't use the stub if this branch is in range. */
13909 if (stub_entry != NULL)
13911 /* Munge up the value and addend so that we call the stub
13912 rather than the procedure directly. */
13913 relocation = (stub_entry->stub_offset
13914 + stub_entry->stub_sec->output_offset
13915 + stub_entry->stub_sec->output_section->vma);
13917 reloc_dest = DEST_STUB;
13919 if ((stub_entry->stub_type == ppc_stub_plt_call
13920 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
13921 && (ALWAYS_EMIT_R2SAVE
13922 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
13923 && rel + 1 < relend
13924 && rel[1].r_offset == rel->r_offset + 4
13925 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE)
13933 /* Set 'a' bit. This is 0b00010 in BO field for branch
13934 on CR(BI) insns (BO == 001at or 011at), and 0b01000
13935 for branch on CTR insns (BO == 1a00t or 1a01t). */
13936 if ((insn & (0x14 << 21)) == (0x04 << 21))
13937 insn |= 0x02 << 21;
13938 else if ((insn & (0x14 << 21)) == (0x10 << 21))
13939 insn |= 0x08 << 21;
13945 /* Invert 'y' bit if not the default. */
13946 if ((bfd_signed_vma) (relocation + addend - from) < 0)
13947 insn ^= 0x01 << 21;
13950 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
13953 /* NOP out calls to undefined weak functions.
13954 We can thus call a weak function without first
13955 checking whether the function is defined. */
13957 && h->elf.root.type == bfd_link_hash_undefweak
13958 && h->elf.dynindx == -1
13959 && r_type == R_PPC64_REL24
13963 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
13969 /* Set `addend'. */
13974 info->callbacks->einfo
13975 (_("%P: %B: unknown relocation type %d for `%T'\n"),
13976 input_bfd, (int) r_type, sym_name);
13978 bfd_set_error (bfd_error_bad_value);
13984 case R_PPC64_TLSGD:
13985 case R_PPC64_TLSLD:
13986 case R_PPC64_TOCSAVE:
13987 case R_PPC64_GNU_VTINHERIT:
13988 case R_PPC64_GNU_VTENTRY:
13991 /* GOT16 relocations. Like an ADDR16 using the symbol's
13992 address in the GOT as relocation value instead of the
13993 symbol's value itself. Also, create a GOT entry for the
13994 symbol and put the symbol value there. */
13995 case R_PPC64_GOT_TLSGD16:
13996 case R_PPC64_GOT_TLSGD16_LO:
13997 case R_PPC64_GOT_TLSGD16_HI:
13998 case R_PPC64_GOT_TLSGD16_HA:
13999 tls_type = TLS_TLS | TLS_GD;
14002 case R_PPC64_GOT_TLSLD16:
14003 case R_PPC64_GOT_TLSLD16_LO:
14004 case R_PPC64_GOT_TLSLD16_HI:
14005 case R_PPC64_GOT_TLSLD16_HA:
14006 tls_type = TLS_TLS | TLS_LD;
14009 case R_PPC64_GOT_TPREL16_DS:
14010 case R_PPC64_GOT_TPREL16_LO_DS:
14011 case R_PPC64_GOT_TPREL16_HI:
14012 case R_PPC64_GOT_TPREL16_HA:
14013 tls_type = TLS_TLS | TLS_TPREL;
14016 case R_PPC64_GOT_DTPREL16_DS:
14017 case R_PPC64_GOT_DTPREL16_LO_DS:
14018 case R_PPC64_GOT_DTPREL16_HI:
14019 case R_PPC64_GOT_DTPREL16_HA:
14020 tls_type = TLS_TLS | TLS_DTPREL;
14023 case R_PPC64_GOT16:
14024 case R_PPC64_GOT16_LO:
14025 case R_PPC64_GOT16_HI:
14026 case R_PPC64_GOT16_HA:
14027 case R_PPC64_GOT16_DS:
14028 case R_PPC64_GOT16_LO_DS:
14031 /* Relocation is to the entry for this symbol in the global
14036 unsigned long indx = 0;
14037 struct got_entry *ent;
14039 if (tls_type == (TLS_TLS | TLS_LD)
14041 || !h->elf.def_dynamic))
14042 ent = ppc64_tlsld_got (input_bfd);
14048 bfd_boolean dyn = htab->elf.dynamic_sections_created;
14049 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
14052 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
14053 /* This is actually a static link, or it is a
14054 -Bsymbolic link and the symbol is defined
14055 locally, or the symbol was forced to be local
14056 because of a version file. */
14060 BFD_ASSERT (h->elf.dynindx != -1);
14061 indx = h->elf.dynindx;
14062 unresolved_reloc = FALSE;
14064 ent = h->elf.got.glist;
14068 if (local_got_ents == NULL)
14070 ent = local_got_ents[r_symndx];
14073 for (; ent != NULL; ent = ent->next)
14074 if (ent->addend == orig_rel.r_addend
14075 && ent->owner == input_bfd
14076 && ent->tls_type == tls_type)
14082 if (ent->is_indirect)
14083 ent = ent->got.ent;
14084 offp = &ent->got.offset;
14085 got = ppc64_elf_tdata (ent->owner)->got;
14089 /* The offset must always be a multiple of 8. We use the
14090 least significant bit to record whether we have already
14091 processed this entry. */
14093 if ((off & 1) != 0)
14097 /* Generate relocs for the dynamic linker, except in
14098 the case of TLSLD where we'll use one entry per
14106 ? h->elf.type == STT_GNU_IFUNC
14107 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
14109 relgot = htab->elf.irelplt;
14110 else if ((info->shared || indx != 0)
14112 || (tls_type == (TLS_TLS | TLS_LD)
14113 && !h->elf.def_dynamic)
14114 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
14115 || h->elf.root.type != bfd_link_hash_undefweak))
14116 relgot = ppc64_elf_tdata (ent->owner)->relgot;
14117 if (relgot != NULL)
14119 outrel.r_offset = (got->output_section->vma
14120 + got->output_offset
14122 outrel.r_addend = addend;
14123 if (tls_type & (TLS_LD | TLS_GD))
14125 outrel.r_addend = 0;
14126 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
14127 if (tls_type == (TLS_TLS | TLS_GD))
14129 loc = relgot->contents;
14130 loc += (relgot->reloc_count++
14131 * sizeof (Elf64_External_Rela));
14132 bfd_elf64_swap_reloca_out (output_bfd,
14134 outrel.r_offset += 8;
14135 outrel.r_addend = addend;
14137 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
14140 else if (tls_type == (TLS_TLS | TLS_DTPREL))
14141 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
14142 else if (tls_type == (TLS_TLS | TLS_TPREL))
14143 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
14144 else if (indx != 0)
14145 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
14149 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14151 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
14153 /* Write the .got section contents for the sake
14155 loc = got->contents + off;
14156 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
14160 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
14162 outrel.r_addend += relocation;
14163 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
14165 if (htab->elf.tls_sec == NULL)
14166 outrel.r_addend = 0;
14168 outrel.r_addend -= htab->elf.tls_sec->vma;
14171 loc = relgot->contents;
14172 loc += (relgot->reloc_count++
14173 * sizeof (Elf64_External_Rela));
14174 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14177 /* Init the .got section contents here if we're not
14178 emitting a reloc. */
14181 relocation += addend;
14182 if (tls_type == (TLS_TLS | TLS_LD))
14184 else if (tls_type != 0)
14186 if (htab->elf.tls_sec == NULL)
14190 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
14191 if (tls_type == (TLS_TLS | TLS_TPREL))
14192 relocation += DTP_OFFSET - TP_OFFSET;
14195 if (tls_type == (TLS_TLS | TLS_GD))
14197 bfd_put_64 (output_bfd, relocation,
14198 got->contents + off + 8);
14203 bfd_put_64 (output_bfd, relocation,
14204 got->contents + off);
14208 if (off >= (bfd_vma) -2)
14211 relocation = got->output_section->vma + got->output_offset + off;
14212 addend = -(TOCstart + htab->stub_group[input_section->id].toc_off);
14216 case R_PPC64_PLT16_HA:
14217 case R_PPC64_PLT16_HI:
14218 case R_PPC64_PLT16_LO:
14219 case R_PPC64_PLT32:
14220 case R_PPC64_PLT64:
14221 /* Relocation is to the entry for this symbol in the
14222 procedure linkage table. */
14224 /* Resolve a PLT reloc against a local symbol directly,
14225 without using the procedure linkage table. */
14229 /* It's possible that we didn't make a PLT entry for this
14230 symbol. This happens when statically linking PIC code,
14231 or when using -Bsymbolic. Go find a match if there is a
14233 if (htab->elf.splt != NULL)
14235 struct plt_entry *ent;
14236 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
14237 if (ent->plt.offset != (bfd_vma) -1
14238 && ent->addend == orig_rel.r_addend)
14240 relocation = (htab->elf.splt->output_section->vma
14241 + htab->elf.splt->output_offset
14242 + ent->plt.offset);
14243 unresolved_reloc = FALSE;
14250 /* Relocation value is TOC base. */
14251 relocation = TOCstart;
14252 if (r_symndx == STN_UNDEF)
14253 relocation += htab->stub_group[input_section->id].toc_off;
14254 else if (unresolved_reloc)
14256 else if (sec != NULL && sec->id <= htab->top_id)
14257 relocation += htab->stub_group[sec->id].toc_off;
14259 unresolved_reloc = TRUE;
14262 /* TOC16 relocs. We want the offset relative to the TOC base,
14263 which is the address of the start of the TOC plus 0x8000.
14264 The TOC consists of sections .got, .toc, .tocbss, and .plt,
14266 case R_PPC64_TOC16:
14267 case R_PPC64_TOC16_LO:
14268 case R_PPC64_TOC16_HI:
14269 case R_PPC64_TOC16_DS:
14270 case R_PPC64_TOC16_LO_DS:
14271 case R_PPC64_TOC16_HA:
14272 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
14275 /* Relocate against the beginning of the section. */
14276 case R_PPC64_SECTOFF:
14277 case R_PPC64_SECTOFF_LO:
14278 case R_PPC64_SECTOFF_HI:
14279 case R_PPC64_SECTOFF_DS:
14280 case R_PPC64_SECTOFF_LO_DS:
14281 case R_PPC64_SECTOFF_HA:
14283 addend -= sec->output_section->vma;
14286 case R_PPC64_REL16:
14287 case R_PPC64_REL16_LO:
14288 case R_PPC64_REL16_HI:
14289 case R_PPC64_REL16_HA:
14292 case R_PPC64_REL14:
14293 case R_PPC64_REL14_BRNTAKEN:
14294 case R_PPC64_REL14_BRTAKEN:
14295 case R_PPC64_REL24:
14298 case R_PPC64_TPREL16:
14299 case R_PPC64_TPREL16_LO:
14300 case R_PPC64_TPREL16_HI:
14301 case R_PPC64_TPREL16_HA:
14302 case R_PPC64_TPREL16_DS:
14303 case R_PPC64_TPREL16_LO_DS:
14304 case R_PPC64_TPREL16_HIGH:
14305 case R_PPC64_TPREL16_HIGHA:
14306 case R_PPC64_TPREL16_HIGHER:
14307 case R_PPC64_TPREL16_HIGHERA:
14308 case R_PPC64_TPREL16_HIGHEST:
14309 case R_PPC64_TPREL16_HIGHESTA:
14311 && h->elf.root.type == bfd_link_hash_undefweak
14312 && h->elf.dynindx == -1)
14314 /* Make this relocation against an undefined weak symbol
14315 resolve to zero. This is really just a tweak, since
14316 code using weak externs ought to check that they are
14317 defined before using them. */
14318 bfd_byte *p = contents + rel->r_offset - d_offset;
14320 insn = bfd_get_32 (output_bfd, p);
14321 insn = _bfd_elf_ppc_at_tprel_transform (insn, 13);
14323 bfd_put_32 (output_bfd, insn, p);
14326 if (htab->elf.tls_sec != NULL)
14327 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
14329 /* The TPREL16 relocs shouldn't really be used in shared
14330 libs as they will result in DT_TEXTREL being set, but
14331 support them anyway. */
14335 case R_PPC64_DTPREL16:
14336 case R_PPC64_DTPREL16_LO:
14337 case R_PPC64_DTPREL16_HI:
14338 case R_PPC64_DTPREL16_HA:
14339 case R_PPC64_DTPREL16_DS:
14340 case R_PPC64_DTPREL16_LO_DS:
14341 case R_PPC64_DTPREL16_HIGH:
14342 case R_PPC64_DTPREL16_HIGHA:
14343 case R_PPC64_DTPREL16_HIGHER:
14344 case R_PPC64_DTPREL16_HIGHERA:
14345 case R_PPC64_DTPREL16_HIGHEST:
14346 case R_PPC64_DTPREL16_HIGHESTA:
14347 if (htab->elf.tls_sec != NULL)
14348 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
14351 case R_PPC64_ADDR64_LOCAL:
14352 addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL
14357 case R_PPC64_DTPMOD64:
14362 case R_PPC64_TPREL64:
14363 if (htab->elf.tls_sec != NULL)
14364 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
14367 case R_PPC64_DTPREL64:
14368 if (htab->elf.tls_sec != NULL)
14369 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
14372 /* Relocations that may need to be propagated if this is a
14374 case R_PPC64_REL30:
14375 case R_PPC64_REL32:
14376 case R_PPC64_REL64:
14377 case R_PPC64_ADDR14:
14378 case R_PPC64_ADDR14_BRNTAKEN:
14379 case R_PPC64_ADDR14_BRTAKEN:
14380 case R_PPC64_ADDR16:
14381 case R_PPC64_ADDR16_DS:
14382 case R_PPC64_ADDR16_HA:
14383 case R_PPC64_ADDR16_HI:
14384 case R_PPC64_ADDR16_HIGH:
14385 case R_PPC64_ADDR16_HIGHA:
14386 case R_PPC64_ADDR16_HIGHER:
14387 case R_PPC64_ADDR16_HIGHERA:
14388 case R_PPC64_ADDR16_HIGHEST:
14389 case R_PPC64_ADDR16_HIGHESTA:
14390 case R_PPC64_ADDR16_LO:
14391 case R_PPC64_ADDR16_LO_DS:
14392 case R_PPC64_ADDR24:
14393 case R_PPC64_ADDR32:
14394 case R_PPC64_ADDR64:
14395 case R_PPC64_UADDR16:
14396 case R_PPC64_UADDR32:
14397 case R_PPC64_UADDR64:
14399 if ((input_section->flags & SEC_ALLOC) == 0)
14402 if (NO_OPD_RELOCS && is_opd)
14407 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
14408 || h->elf.root.type != bfd_link_hash_undefweak)
14409 && (must_be_dyn_reloc (info, r_type)
14410 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
14411 || (ELIMINATE_COPY_RELOCS
14414 && h->elf.dynindx != -1
14415 && !h->elf.non_got_ref
14416 && !h->elf.def_regular)
14419 ? h->elf.type == STT_GNU_IFUNC
14420 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)))
14422 bfd_boolean skip, relocate;
14426 /* When generating a dynamic object, these relocations
14427 are copied into the output file to be resolved at run
14433 out_off = _bfd_elf_section_offset (output_bfd, info,
14434 input_section, rel->r_offset);
14435 if (out_off == (bfd_vma) -1)
14437 else if (out_off == (bfd_vma) -2)
14438 skip = TRUE, relocate = TRUE;
14439 out_off += (input_section->output_section->vma
14440 + input_section->output_offset);
14441 outrel.r_offset = out_off;
14442 outrel.r_addend = rel->r_addend;
14444 /* Optimize unaligned reloc use. */
14445 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
14446 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
14447 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
14448 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
14449 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
14450 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
14451 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
14452 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
14453 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
14456 memset (&outrel, 0, sizeof outrel);
14457 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
14459 && r_type != R_PPC64_TOC)
14461 BFD_ASSERT (h->elf.dynindx != -1);
14462 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
14466 /* This symbol is local, or marked to become local,
14467 or this is an opd section reloc which must point
14468 at a local function. */
14469 outrel.r_addend += relocation;
14470 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
14472 if (is_opd && h != NULL)
14474 /* Lie about opd entries. This case occurs
14475 when building shared libraries and we
14476 reference a function in another shared
14477 lib. The same thing happens for a weak
14478 definition in an application that's
14479 overridden by a strong definition in a
14480 shared lib. (I believe this is a generic
14481 bug in binutils handling of weak syms.)
14482 In these cases we won't use the opd
14483 entry in this lib. */
14484 unresolved_reloc = FALSE;
14487 && r_type == R_PPC64_ADDR64
14489 ? h->elf.type == STT_GNU_IFUNC
14490 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
14491 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14494 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
14496 /* We need to relocate .opd contents for ld.so.
14497 Prelink also wants simple and consistent rules
14498 for relocs. This make all RELATIVE relocs have
14499 *r_offset equal to r_addend. */
14508 ? h->elf.type == STT_GNU_IFUNC
14509 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
14511 info->callbacks->einfo
14512 (_("%P: %H: %s for indirect "
14513 "function `%T' unsupported\n"),
14514 input_bfd, input_section, rel->r_offset,
14515 ppc64_elf_howto_table[r_type]->name,
14519 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
14521 else if (sec == NULL || sec->owner == NULL)
14523 bfd_set_error (bfd_error_bad_value);
14530 osec = sec->output_section;
14531 indx = elf_section_data (osec)->dynindx;
14535 if ((osec->flags & SEC_READONLY) == 0
14536 && htab->elf.data_index_section != NULL)
14537 osec = htab->elf.data_index_section;
14539 osec = htab->elf.text_index_section;
14540 indx = elf_section_data (osec)->dynindx;
14542 BFD_ASSERT (indx != 0);
14544 /* We are turning this relocation into one
14545 against a section symbol, so subtract out
14546 the output section's address but not the
14547 offset of the input section in the output
14549 outrel.r_addend -= osec->vma;
14552 outrel.r_info = ELF64_R_INFO (indx, r_type);
14556 sreloc = elf_section_data (input_section)->sreloc;
14558 ? h->elf.type == STT_GNU_IFUNC
14559 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
14560 sreloc = htab->elf.irelplt;
14561 if (sreloc == NULL)
14564 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
14567 loc = sreloc->contents;
14568 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
14569 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14571 /* If this reloc is against an external symbol, it will
14572 be computed at runtime, so there's no need to do
14573 anything now. However, for the sake of prelink ensure
14574 that the section contents are a known value. */
14577 unresolved_reloc = FALSE;
14578 /* The value chosen here is quite arbitrary as ld.so
14579 ignores section contents except for the special
14580 case of .opd where the contents might be accessed
14581 before relocation. Choose zero, as that won't
14582 cause reloc overflow. */
14585 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
14586 to improve backward compatibility with older
14588 if (r_type == R_PPC64_ADDR64)
14589 addend = outrel.r_addend;
14590 /* Adjust pc_relative relocs to have zero in *r_offset. */
14591 else if (ppc64_elf_howto_table[r_type]->pc_relative)
14592 addend = (input_section->output_section->vma
14593 + input_section->output_offset
14600 case R_PPC64_GLOB_DAT:
14601 case R_PPC64_JMP_SLOT:
14602 case R_PPC64_JMP_IREL:
14603 case R_PPC64_RELATIVE:
14604 /* We shouldn't ever see these dynamic relocs in relocatable
14606 /* Fall through. */
14608 case R_PPC64_PLTGOT16:
14609 case R_PPC64_PLTGOT16_DS:
14610 case R_PPC64_PLTGOT16_HA:
14611 case R_PPC64_PLTGOT16_HI:
14612 case R_PPC64_PLTGOT16_LO:
14613 case R_PPC64_PLTGOT16_LO_DS:
14614 case R_PPC64_PLTREL32:
14615 case R_PPC64_PLTREL64:
14616 /* These ones haven't been implemented yet. */
14618 info->callbacks->einfo
14619 (_("%P: %B: %s is not supported for `%T'\n"),
14621 ppc64_elf_howto_table[r_type]->name, sym_name);
14623 bfd_set_error (bfd_error_invalid_operation);
14628 /* Multi-instruction sequences that access the TOC can be
14629 optimized, eg. addis ra,r2,0; addi rb,ra,x;
14630 to nop; addi rb,r2,x; */
14636 case R_PPC64_GOT_TLSLD16_HI:
14637 case R_PPC64_GOT_TLSGD16_HI:
14638 case R_PPC64_GOT_TPREL16_HI:
14639 case R_PPC64_GOT_DTPREL16_HI:
14640 case R_PPC64_GOT16_HI:
14641 case R_PPC64_TOC16_HI:
14642 /* These relocs would only be useful if building up an
14643 offset to later add to r2, perhaps in an indexed
14644 addressing mode instruction. Don't try to optimize.
14645 Unfortunately, the possibility of someone building up an
14646 offset like this or even with the HA relocs, means that
14647 we need to check the high insn when optimizing the low
14651 case R_PPC64_GOT_TLSLD16_HA:
14652 case R_PPC64_GOT_TLSGD16_HA:
14653 case R_PPC64_GOT_TPREL16_HA:
14654 case R_PPC64_GOT_DTPREL16_HA:
14655 case R_PPC64_GOT16_HA:
14656 case R_PPC64_TOC16_HA:
14657 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
14658 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
14660 bfd_byte *p = contents + (rel->r_offset & ~3);
14661 bfd_put_32 (input_bfd, NOP, p);
14665 case R_PPC64_GOT_TLSLD16_LO:
14666 case R_PPC64_GOT_TLSGD16_LO:
14667 case R_PPC64_GOT_TPREL16_LO_DS:
14668 case R_PPC64_GOT_DTPREL16_LO_DS:
14669 case R_PPC64_GOT16_LO:
14670 case R_PPC64_GOT16_LO_DS:
14671 case R_PPC64_TOC16_LO:
14672 case R_PPC64_TOC16_LO_DS:
14673 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
14674 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
14676 bfd_byte *p = contents + (rel->r_offset & ~3);
14677 insn = bfd_get_32 (input_bfd, p);
14678 if ((insn & (0x3f << 26)) == 12u << 26 /* addic */)
14680 /* Transform addic to addi when we change reg. */
14681 insn &= ~((0x3f << 26) | (0x1f << 16));
14682 insn |= (14u << 26) | (2 << 16);
14686 insn &= ~(0x1f << 16);
14689 bfd_put_32 (input_bfd, insn, p);
14694 /* Do any further special processing. */
14695 howto = ppc64_elf_howto_table[(int) r_type];
14701 case R_PPC64_REL16_HA:
14702 case R_PPC64_ADDR16_HA:
14703 case R_PPC64_ADDR16_HIGHA:
14704 case R_PPC64_ADDR16_HIGHERA:
14705 case R_PPC64_ADDR16_HIGHESTA:
14706 case R_PPC64_TOC16_HA:
14707 case R_PPC64_SECTOFF_HA:
14708 case R_PPC64_TPREL16_HA:
14709 case R_PPC64_TPREL16_HIGHA:
14710 case R_PPC64_TPREL16_HIGHERA:
14711 case R_PPC64_TPREL16_HIGHESTA:
14712 case R_PPC64_DTPREL16_HA:
14713 case R_PPC64_DTPREL16_HIGHA:
14714 case R_PPC64_DTPREL16_HIGHERA:
14715 case R_PPC64_DTPREL16_HIGHESTA:
14716 /* It's just possible that this symbol is a weak symbol
14717 that's not actually defined anywhere. In that case,
14718 'sec' would be NULL, and we should leave the symbol
14719 alone (it will be set to zero elsewhere in the link). */
14724 case R_PPC64_GOT16_HA:
14725 case R_PPC64_PLTGOT16_HA:
14726 case R_PPC64_PLT16_HA:
14727 case R_PPC64_GOT_TLSGD16_HA:
14728 case R_PPC64_GOT_TLSLD16_HA:
14729 case R_PPC64_GOT_TPREL16_HA:
14730 case R_PPC64_GOT_DTPREL16_HA:
14731 /* Add 0x10000 if sign bit in 0:15 is set.
14732 Bits 0:15 are not used. */
14736 case R_PPC64_ADDR16_DS:
14737 case R_PPC64_ADDR16_LO_DS:
14738 case R_PPC64_GOT16_DS:
14739 case R_PPC64_GOT16_LO_DS:
14740 case R_PPC64_PLT16_LO_DS:
14741 case R_PPC64_SECTOFF_DS:
14742 case R_PPC64_SECTOFF_LO_DS:
14743 case R_PPC64_TOC16_DS:
14744 case R_PPC64_TOC16_LO_DS:
14745 case R_PPC64_PLTGOT16_DS:
14746 case R_PPC64_PLTGOT16_LO_DS:
14747 case R_PPC64_GOT_TPREL16_DS:
14748 case R_PPC64_GOT_TPREL16_LO_DS:
14749 case R_PPC64_GOT_DTPREL16_DS:
14750 case R_PPC64_GOT_DTPREL16_LO_DS:
14751 case R_PPC64_TPREL16_DS:
14752 case R_PPC64_TPREL16_LO_DS:
14753 case R_PPC64_DTPREL16_DS:
14754 case R_PPC64_DTPREL16_LO_DS:
14755 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
14757 /* If this reloc is against an lq insn, then the value must be
14758 a multiple of 16. This is somewhat of a hack, but the
14759 "correct" way to do this by defining _DQ forms of all the
14760 _DS relocs bloats all reloc switches in this file. It
14761 doesn't seem to make much sense to use any of these relocs
14762 in data, so testing the insn should be safe. */
14763 if ((insn & (0x3f << 26)) == (56u << 26))
14765 if (((relocation + addend) & mask) != 0)
14767 info->callbacks->einfo
14768 (_("%P: %H: error: %s not a multiple of %u\n"),
14769 input_bfd, input_section, rel->r_offset,
14772 bfd_set_error (bfd_error_bad_value);
14779 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
14780 because such sections are not SEC_ALLOC and thus ld.so will
14781 not process them. */
14782 if (unresolved_reloc
14783 && !((input_section->flags & SEC_DEBUGGING) != 0
14784 && h->elf.def_dynamic)
14785 && _bfd_elf_section_offset (output_bfd, info, input_section,
14786 rel->r_offset) != (bfd_vma) -1)
14788 info->callbacks->einfo
14789 (_("%P: %H: unresolvable %s against `%T'\n"),
14790 input_bfd, input_section, rel->r_offset,
14792 h->elf.root.root.string);
14796 /* 16-bit fields in insns mostly have signed values, but a
14797 few insns have 16-bit unsigned values. Really, we should
14798 have different reloc types. */
14799 if (howto->complain_on_overflow != complain_overflow_dont
14800 && howto->dst_mask == 0xffff
14801 && (input_section->flags & SEC_CODE) != 0)
14803 enum complain_overflow complain = complain_overflow_signed;
14805 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
14806 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
14807 complain = complain_overflow_bitfield;
14808 else if (howto->rightshift == 0
14809 ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */
14810 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
14811 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
14812 : ((insn & (0x3f << 26)) == 29u << 26 /* andis */
14813 || (insn & (0x3f << 26)) == 25u << 26 /* oris */
14814 || (insn & (0x3f << 26)) == 27u << 26 /* xoris */))
14815 complain = complain_overflow_unsigned;
14816 if (howto->complain_on_overflow != complain)
14818 alt_howto = *howto;
14819 alt_howto.complain_on_overflow = complain;
14820 howto = &alt_howto;
14824 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
14825 rel->r_offset, relocation, addend);
14827 if (r != bfd_reloc_ok)
14829 char *more_info = NULL;
14830 const char *reloc_name = howto->name;
14832 if (reloc_dest != DEST_NORMAL)
14834 more_info = bfd_malloc (strlen (reloc_name) + 8);
14835 if (more_info != NULL)
14837 strcpy (more_info, reloc_name);
14838 strcat (more_info, (reloc_dest == DEST_OPD
14839 ? " (OPD)" : " (stub)"));
14840 reloc_name = more_info;
14844 if (r == bfd_reloc_overflow)
14846 /* On code like "if (foo) foo();" don't report overflow
14847 on a branch to zero when foo is undefined. */
14849 && (reloc_dest == DEST_STUB
14851 && (h->elf.root.type == bfd_link_hash_undefweak
14852 || h->elf.root.type == bfd_link_hash_undefined)
14853 && is_branch_reloc (r_type))))
14855 if (!((*info->callbacks->reloc_overflow)
14856 (info, &h->elf.root, sym_name,
14857 reloc_name, orig_rel.r_addend,
14858 input_bfd, input_section, rel->r_offset)))
14864 info->callbacks->einfo
14865 (_("%P: %H: %s against `%T': error %d\n"),
14866 input_bfd, input_section, rel->r_offset,
14867 reloc_name, sym_name, (int) r);
14870 if (more_info != NULL)
14875 /* If we're emitting relocations, then shortly after this function
14876 returns, reloc offsets and addends for this section will be
14877 adjusted. Worse, reloc symbol indices will be for the output
14878 file rather than the input. Save a copy of the relocs for
14879 opd_entry_value. */
14880 if (is_opd && (info->emitrelocations || info->relocatable))
14883 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
14884 rel = bfd_alloc (input_bfd, amt);
14885 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL);
14886 ppc64_elf_tdata (input_bfd)->opd.relocs = rel;
14889 memcpy (rel, relocs, amt);
14894 /* Adjust the value of any local symbols in opd sections. */
14897 ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
14898 const char *name ATTRIBUTE_UNUSED,
14899 Elf_Internal_Sym *elfsym,
14900 asection *input_sec,
14901 struct elf_link_hash_entry *h)
14903 struct _opd_sec_data *opd;
14910 opd = get_opd_info (input_sec);
14911 if (opd == NULL || opd->adjust == NULL)
14914 value = elfsym->st_value - input_sec->output_offset;
14915 if (!info->relocatable)
14916 value -= input_sec->output_section->vma;
14918 adjust = opd->adjust[OPD_NDX (value)];
14922 elfsym->st_value += adjust;
14926 /* Finish up dynamic symbol handling. We set the contents of various
14927 dynamic sections here. */
14930 ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
14931 struct bfd_link_info *info,
14932 struct elf_link_hash_entry *h,
14933 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
14935 struct ppc_link_hash_table *htab;
14936 struct plt_entry *ent;
14937 Elf_Internal_Rela rela;
14940 htab = ppc_hash_table (info);
14944 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
14945 if (ent->plt.offset != (bfd_vma) -1)
14947 /* This symbol has an entry in the procedure linkage
14948 table. Set it up. */
14949 if (!htab->elf.dynamic_sections_created
14950 || h->dynindx == -1)
14952 BFD_ASSERT (h->type == STT_GNU_IFUNC
14954 && (h->root.type == bfd_link_hash_defined
14955 || h->root.type == bfd_link_hash_defweak));
14956 rela.r_offset = (htab->elf.iplt->output_section->vma
14957 + htab->elf.iplt->output_offset
14958 + ent->plt.offset);
14960 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
14962 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14963 rela.r_addend = (h->root.u.def.value
14964 + h->root.u.def.section->output_offset
14965 + h->root.u.def.section->output_section->vma
14967 loc = (htab->elf.irelplt->contents
14968 + (htab->elf.irelplt->reloc_count++
14969 * sizeof (Elf64_External_Rela)));
14973 rela.r_offset = (htab->elf.splt->output_section->vma
14974 + htab->elf.splt->output_offset
14975 + ent->plt.offset);
14976 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
14977 rela.r_addend = ent->addend;
14978 loc = (htab->elf.srelplt->contents
14979 + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab))
14980 / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela)));
14982 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
14984 if (!htab->opd_abi)
14986 if (!h->def_regular)
14988 /* Mark the symbol as undefined, rather than as
14989 defined in glink. Leave the value if there were
14990 any relocations where pointer equality matters
14991 (this is a clue for the dynamic linker, to make
14992 function pointer comparisons work between an
14993 application and shared library), otherwise set it
14995 sym->st_shndx = SHN_UNDEF;
14996 if (!h->pointer_equality_needed)
14998 else if (!h->ref_regular_nonweak)
15000 /* This breaks function pointer comparisons, but
15001 that is better than breaking tests for a NULL
15002 function pointer. */
15011 /* This symbol needs a copy reloc. Set it up. */
15013 if (h->dynindx == -1
15014 || (h->root.type != bfd_link_hash_defined
15015 && h->root.type != bfd_link_hash_defweak)
15016 || htab->relbss == NULL)
15019 rela.r_offset = (h->root.u.def.value
15020 + h->root.u.def.section->output_section->vma
15021 + h->root.u.def.section->output_offset);
15022 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
15024 loc = htab->relbss->contents;
15025 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
15026 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
15032 /* Used to decide how to sort relocs in an optimal manner for the
15033 dynamic linker, before writing them out. */
15035 static enum elf_reloc_type_class
15036 ppc64_elf_reloc_type_class (const struct bfd_link_info *info,
15037 const asection *rel_sec,
15038 const Elf_Internal_Rela *rela)
15040 enum elf_ppc64_reloc_type r_type;
15041 struct ppc_link_hash_table *htab = ppc_hash_table (info);
15043 if (rel_sec == htab->elf.irelplt)
15044 return reloc_class_ifunc;
15046 r_type = ELF64_R_TYPE (rela->r_info);
15049 case R_PPC64_RELATIVE:
15050 return reloc_class_relative;
15051 case R_PPC64_JMP_SLOT:
15052 return reloc_class_plt;
15054 return reloc_class_copy;
15056 return reloc_class_normal;
15060 /* Finish up the dynamic sections. */
15063 ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
15064 struct bfd_link_info *info)
15066 struct ppc_link_hash_table *htab;
15070 htab = ppc_hash_table (info);
15074 dynobj = htab->elf.dynobj;
15075 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
15077 if (htab->elf.dynamic_sections_created)
15079 Elf64_External_Dyn *dyncon, *dynconend;
15081 if (sdyn == NULL || htab->elf.sgot == NULL)
15084 dyncon = (Elf64_External_Dyn *) sdyn->contents;
15085 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
15086 for (; dyncon < dynconend; dyncon++)
15088 Elf_Internal_Dyn dyn;
15091 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
15098 case DT_PPC64_GLINK:
15100 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
15101 /* We stupidly defined DT_PPC64_GLINK to be the start
15102 of glink rather than the first entry point, which is
15103 what ld.so needs, and now have a bigger stub to
15104 support automatic multiple TOCs. */
15105 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4;
15109 s = bfd_get_section_by_name (output_bfd, ".opd");
15112 dyn.d_un.d_ptr = s->vma;
15116 if (htab->do_multi_toc && htab->multi_toc_needed)
15117 dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC;
15120 case DT_PPC64_OPDSZ:
15121 s = bfd_get_section_by_name (output_bfd, ".opd");
15124 dyn.d_un.d_val = s->size;
15128 s = htab->elf.splt;
15129 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
15133 s = htab->elf.srelplt;
15134 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
15138 dyn.d_un.d_val = htab->elf.srelplt->size;
15142 /* Don't count procedure linkage table relocs in the
15143 overall reloc count. */
15144 s = htab->elf.srelplt;
15147 dyn.d_un.d_val -= s->size;
15151 /* We may not be using the standard ELF linker script.
15152 If .rela.plt is the first .rela section, we adjust
15153 DT_RELA to not include it. */
15154 s = htab->elf.srelplt;
15157 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
15159 dyn.d_un.d_ptr += s->size;
15163 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
15167 if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0)
15169 /* Fill in the first entry in the global offset table.
15170 We use it to hold the link-time TOCbase. */
15171 bfd_put_64 (output_bfd,
15172 elf_gp (output_bfd) + TOC_BASE_OFF,
15173 htab->elf.sgot->contents);
15175 /* Set .got entry size. */
15176 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8;
15179 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
15181 /* Set .plt entry size. */
15182 elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize
15183 = PLT_ENTRY_SIZE (htab);
15186 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
15187 brlt ourselves if emitrelocations. */
15188 if (htab->brlt != NULL
15189 && htab->brlt->reloc_count != 0
15190 && !_bfd_elf_link_output_relocs (output_bfd,
15192 elf_section_data (htab->brlt)->rela.hdr,
15193 elf_section_data (htab->brlt)->relocs,
15197 if (htab->glink != NULL
15198 && htab->glink->reloc_count != 0
15199 && !_bfd_elf_link_output_relocs (output_bfd,
15201 elf_section_data (htab->glink)->rela.hdr,
15202 elf_section_data (htab->glink)->relocs,
15206 if (htab->glink_eh_frame != NULL
15207 && htab->glink_eh_frame->size != 0)
15211 asection *stub_sec;
15213 p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie);
15214 for (stub_sec = htab->params->stub_bfd->sections;
15216 stub_sec = stub_sec->next)
15217 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
15223 /* Offset to stub section. */
15224 val = (stub_sec->output_section->vma
15225 + stub_sec->output_offset);
15226 val -= (htab->glink_eh_frame->output_section->vma
15227 + htab->glink_eh_frame->output_offset
15228 + (p - htab->glink_eh_frame->contents));
15229 if (val + 0x80000000 > 0xffffffff)
15231 info->callbacks->einfo
15232 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15236 bfd_put_32 (dynobj, val, p);
15238 /* stub section size. */
15240 /* Augmentation. */
15245 if (htab->glink != NULL && htab->glink->size != 0)
15251 /* Offset to .glink. */
15252 val = (htab->glink->output_section->vma
15253 + htab->glink->output_offset
15255 val -= (htab->glink_eh_frame->output_section->vma
15256 + htab->glink_eh_frame->output_offset
15257 + (p - htab->glink_eh_frame->contents));
15258 if (val + 0x80000000 > 0xffffffff)
15260 info->callbacks->einfo
15261 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15262 htab->glink->name);
15265 bfd_put_32 (dynobj, val, p);
15269 /* Augmentation. */
15275 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
15276 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
15277 htab->glink_eh_frame,
15278 htab->glink_eh_frame->contents))
15282 /* We need to handle writing out multiple GOT sections ourselves,
15283 since we didn't add them to DYNOBJ. We know dynobj is the first
15285 while ((dynobj = dynobj->link.next) != NULL)
15289 if (!is_ppc64_elf (dynobj))
15292 s = ppc64_elf_tdata (dynobj)->got;
15295 && s->output_section != bfd_abs_section_ptr
15296 && !bfd_set_section_contents (output_bfd, s->output_section,
15297 s->contents, s->output_offset,
15300 s = ppc64_elf_tdata (dynobj)->relgot;
15303 && s->output_section != bfd_abs_section_ptr
15304 && !bfd_set_section_contents (output_bfd, s->output_section,
15305 s->contents, s->output_offset,
15313 #include "elf64-target.h"
15315 /* FreeBSD support */
15317 #undef TARGET_LITTLE_SYM
15318 #undef TARGET_LITTLE_NAME
15320 #undef TARGET_BIG_SYM
15321 #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec
15322 #undef TARGET_BIG_NAME
15323 #define TARGET_BIG_NAME "elf64-powerpc-freebsd"
15326 #define ELF_OSABI ELFOSABI_FREEBSD
15329 #define elf64_bed elf64_powerpc_fbsd_bed
15331 #include "elf64-target.h"