1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright (C) 1999-2017 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_want_dynrelro 1
76 #define elf_backend_can_gc_sections 1
77 #define elf_backend_can_refcount 1
78 #define elf_backend_rela_normal 1
79 #define elf_backend_dtrel_excludes_plt 1
80 #define elf_backend_default_execstack 0
82 #define bfd_elf64_mkobject ppc64_elf_mkobject
83 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
84 #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
85 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
86 #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data
87 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
88 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
89 #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
90 #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms
91 #define bfd_elf64_bfd_gc_sections ppc64_elf_gc_sections
93 #define elf_backend_object_p ppc64_elf_object_p
94 #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
95 #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
96 #define elf_backend_write_core_note ppc64_elf_write_core_note
97 #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
98 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
99 #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
100 #define elf_backend_check_directives ppc64_elf_before_check_relocs
101 #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed
102 #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
103 #define elf_backend_check_relocs ppc64_elf_check_relocs
104 #define elf_backend_gc_keep ppc64_elf_gc_keep
105 #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
106 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
107 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
108 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
109 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
110 #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym
111 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
112 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
113 #define elf_backend_hash_symbol ppc64_elf_hash_symbol
114 #define elf_backend_init_index_section _bfd_elf_init_2_index_sections
115 #define elf_backend_action_discarded ppc64_elf_action_discarded
116 #define elf_backend_relocate_section ppc64_elf_relocate_section
117 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
118 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
119 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
120 #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
121 #define elf_backend_special_sections ppc64_elf_special_sections
122 #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute
123 #define elf_backend_merge_symbol ppc64_elf_merge_symbol
124 #define elf_backend_get_reloc_section bfd_get_section_by_name
126 /* The name of the dynamic interpreter. This is put in the .interp
128 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
130 /* The size in bytes of an entry in the procedure linkage table. */
131 #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8)
133 /* The initial size of the plt reserved for the dynamic linker. */
134 #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16)
136 /* Offsets to some stack save slots. */
138 #define STK_TOC(htab) (htab->opd_abi ? 40 : 24)
139 /* This one is dodgy. ELFv2 does not have a linker word, so use the
140 CR save slot. Used only by optimised __tls_get_addr call stub,
141 relying on __tls_get_addr_opt not saving CR.. */
142 #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8)
144 /* TOC base pointers offset from start of TOC. */
145 #define TOC_BASE_OFF 0x8000
146 /* TOC base alignment. */
147 #define TOC_BASE_ALIGN 256
149 /* Offset of tp and dtp pointers from start of TLS block. */
150 #define TP_OFFSET 0x7000
151 #define DTP_OFFSET 0x8000
153 /* .plt call stub instructions. The normal stub is like this, but
154 sometimes the .plt entry crosses a 64k boundary and we need to
155 insert an addi to adjust r11. */
156 #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */
157 #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */
158 #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */
159 #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */
160 #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */
161 #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */
162 #define BCTR 0x4e800420 /* bctr */
164 #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */
165 #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
166 #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
168 #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */
169 #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */
170 #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */
171 #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */
172 #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */
173 #define BNECTR 0x4ca20420 /* bnectr+ */
174 #define BNECTR_P4 0x4ce20420 /* bnectr+ */
176 #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */
177 #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
178 #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
180 #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */
181 #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */
182 #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */
184 #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */
185 #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */
186 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
187 #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
188 #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */
190 /* glink call stub instructions. We enter with the index in R0. */
191 #define GLINK_CALL_STUB_SIZE (16*4)
195 #define MFLR_R12 0x7d8802a6 /* mflr %12 */
196 #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
198 #define MFLR_R11 0x7d6802a6 /* mflr %11 */
199 /* ld %2,(0b-1b)(%11) */
200 #define MTLR_R12 0x7d8803a6 /* mtlr %12 */
201 #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */
207 #define MFLR_R0 0x7c0802a6 /* mflr %r0 */
208 #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
209 #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */
210 #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */
211 #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */
214 #define NOP 0x60000000
216 /* Some other nops. */
217 #define CROR_151515 0x4def7b82
218 #define CROR_313131 0x4ffffb82
220 /* .glink entries for the first 32k functions are two instructions. */
221 #define LI_R0_0 0x38000000 /* li %r0,0 */
222 #define B_DOT 0x48000000 /* b . */
224 /* After that, we need two instructions to load the index, followed by
226 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
227 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
229 /* Instructions used by the save and restore reg functions. */
230 #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
231 #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
232 #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
233 #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
234 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
235 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
236 #define LI_R12_0 0x39800000 /* li %r12,0 */
237 #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
238 #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
239 #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
240 #define BLR 0x4e800020 /* blr */
242 /* Since .opd is an array of descriptors and each entry will end up
243 with identical R_PPC64_RELATIVE relocs, there is really no need to
244 propagate .opd relocs; The dynamic linker should be taught to
245 relocate .opd without reloc entries. */
246 #ifndef NO_OPD_RELOCS
247 #define NO_OPD_RELOCS 0
251 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
255 abiversion (bfd
*abfd
)
257 return elf_elfheader (abfd
)->e_flags
& EF_PPC64_ABI
;
261 set_abiversion (bfd
*abfd
, int ver
)
263 elf_elfheader (abfd
)->e_flags
&= ~EF_PPC64_ABI
;
264 elf_elfheader (abfd
)->e_flags
|= ver
& EF_PPC64_ABI
;
267 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
269 /* Relocation HOWTO's. */
270 static reloc_howto_type
*ppc64_elf_howto_table
[(int) R_PPC64_max
];
272 static reloc_howto_type ppc64_elf_howto_raw
[] = {
273 /* This reloc does nothing. */
274 HOWTO (R_PPC64_NONE
, /* type */
276 3, /* size (0 = byte, 1 = short, 2 = long) */
278 FALSE
, /* pc_relative */
280 complain_overflow_dont
, /* complain_on_overflow */
281 bfd_elf_generic_reloc
, /* special_function */
282 "R_PPC64_NONE", /* name */
283 FALSE
, /* partial_inplace */
286 FALSE
), /* pcrel_offset */
288 /* A standard 32 bit relocation. */
289 HOWTO (R_PPC64_ADDR32
, /* type */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
293 FALSE
, /* pc_relative */
295 complain_overflow_bitfield
, /* complain_on_overflow */
296 bfd_elf_generic_reloc
, /* special_function */
297 "R_PPC64_ADDR32", /* name */
298 FALSE
, /* partial_inplace */
300 0xffffffff, /* dst_mask */
301 FALSE
), /* pcrel_offset */
303 /* An absolute 26 bit branch; the lower two bits must be zero.
304 FIXME: we don't check that, we just clear them. */
305 HOWTO (R_PPC64_ADDR24
, /* type */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
309 FALSE
, /* pc_relative */
311 complain_overflow_bitfield
, /* complain_on_overflow */
312 bfd_elf_generic_reloc
, /* special_function */
313 "R_PPC64_ADDR24", /* name */
314 FALSE
, /* partial_inplace */
316 0x03fffffc, /* dst_mask */
317 FALSE
), /* pcrel_offset */
319 /* A standard 16 bit relocation. */
320 HOWTO (R_PPC64_ADDR16
, /* type */
322 1, /* size (0 = byte, 1 = short, 2 = long) */
324 FALSE
, /* pc_relative */
326 complain_overflow_bitfield
, /* complain_on_overflow */
327 bfd_elf_generic_reloc
, /* special_function */
328 "R_PPC64_ADDR16", /* name */
329 FALSE
, /* partial_inplace */
331 0xffff, /* dst_mask */
332 FALSE
), /* pcrel_offset */
334 /* A 16 bit relocation without overflow. */
335 HOWTO (R_PPC64_ADDR16_LO
, /* type */
337 1, /* size (0 = byte, 1 = short, 2 = long) */
339 FALSE
, /* pc_relative */
341 complain_overflow_dont
,/* complain_on_overflow */
342 bfd_elf_generic_reloc
, /* special_function */
343 "R_PPC64_ADDR16_LO", /* name */
344 FALSE
, /* partial_inplace */
346 0xffff, /* dst_mask */
347 FALSE
), /* pcrel_offset */
349 /* Bits 16-31 of an address. */
350 HOWTO (R_PPC64_ADDR16_HI
, /* type */
352 1, /* size (0 = byte, 1 = short, 2 = long) */
354 FALSE
, /* pc_relative */
356 complain_overflow_signed
, /* complain_on_overflow */
357 bfd_elf_generic_reloc
, /* special_function */
358 "R_PPC64_ADDR16_HI", /* name */
359 FALSE
, /* partial_inplace */
361 0xffff, /* dst_mask */
362 FALSE
), /* pcrel_offset */
364 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
365 bits, treated as a signed number, is negative. */
366 HOWTO (R_PPC64_ADDR16_HA
, /* type */
368 1, /* size (0 = byte, 1 = short, 2 = long) */
370 FALSE
, /* pc_relative */
372 complain_overflow_signed
, /* complain_on_overflow */
373 ppc64_elf_ha_reloc
, /* special_function */
374 "R_PPC64_ADDR16_HA", /* name */
375 FALSE
, /* partial_inplace */
377 0xffff, /* dst_mask */
378 FALSE
), /* pcrel_offset */
380 /* An absolute 16 bit branch; the lower two bits must be zero.
381 FIXME: we don't check that, we just clear them. */
382 HOWTO (R_PPC64_ADDR14
, /* type */
384 2, /* size (0 = byte, 1 = short, 2 = long) */
386 FALSE
, /* pc_relative */
388 complain_overflow_signed
, /* complain_on_overflow */
389 ppc64_elf_branch_reloc
, /* special_function */
390 "R_PPC64_ADDR14", /* name */
391 FALSE
, /* partial_inplace */
393 0x0000fffc, /* dst_mask */
394 FALSE
), /* pcrel_offset */
396 /* An absolute 16 bit branch, for which bit 10 should be set to
397 indicate that the branch is expected to be taken. The lower two
398 bits must be zero. */
399 HOWTO (R_PPC64_ADDR14_BRTAKEN
, /* type */
401 2, /* size (0 = byte, 1 = short, 2 = long) */
403 FALSE
, /* pc_relative */
405 complain_overflow_signed
, /* complain_on_overflow */
406 ppc64_elf_brtaken_reloc
, /* special_function */
407 "R_PPC64_ADDR14_BRTAKEN",/* name */
408 FALSE
, /* partial_inplace */
410 0x0000fffc, /* dst_mask */
411 FALSE
), /* pcrel_offset */
413 /* An absolute 16 bit branch, for which bit 10 should be set to
414 indicate that the branch is not expected to be taken. The lower
415 two bits must be zero. */
416 HOWTO (R_PPC64_ADDR14_BRNTAKEN
, /* type */
418 2, /* size (0 = byte, 1 = short, 2 = long) */
420 FALSE
, /* pc_relative */
422 complain_overflow_signed
, /* complain_on_overflow */
423 ppc64_elf_brtaken_reloc
, /* special_function */
424 "R_PPC64_ADDR14_BRNTAKEN",/* name */
425 FALSE
, /* partial_inplace */
427 0x0000fffc, /* dst_mask */
428 FALSE
), /* pcrel_offset */
430 /* A relative 26 bit branch; the lower two bits must be zero. */
431 HOWTO (R_PPC64_REL24
, /* type */
433 2, /* size (0 = byte, 1 = short, 2 = long) */
435 TRUE
, /* pc_relative */
437 complain_overflow_signed
, /* complain_on_overflow */
438 ppc64_elf_branch_reloc
, /* special_function */
439 "R_PPC64_REL24", /* name */
440 FALSE
, /* partial_inplace */
442 0x03fffffc, /* dst_mask */
443 TRUE
), /* pcrel_offset */
445 /* A relative 16 bit branch; the lower two bits must be zero. */
446 HOWTO (R_PPC64_REL14
, /* type */
448 2, /* size (0 = byte, 1 = short, 2 = long) */
450 TRUE
, /* pc_relative */
452 complain_overflow_signed
, /* complain_on_overflow */
453 ppc64_elf_branch_reloc
, /* special_function */
454 "R_PPC64_REL14", /* name */
455 FALSE
, /* partial_inplace */
457 0x0000fffc, /* dst_mask */
458 TRUE
), /* pcrel_offset */
460 /* A relative 16 bit branch. Bit 10 should be set to indicate that
461 the branch is expected to be taken. The lower two bits must be
463 HOWTO (R_PPC64_REL14_BRTAKEN
, /* type */
465 2, /* size (0 = byte, 1 = short, 2 = long) */
467 TRUE
, /* pc_relative */
469 complain_overflow_signed
, /* complain_on_overflow */
470 ppc64_elf_brtaken_reloc
, /* special_function */
471 "R_PPC64_REL14_BRTAKEN", /* name */
472 FALSE
, /* partial_inplace */
474 0x0000fffc, /* dst_mask */
475 TRUE
), /* pcrel_offset */
477 /* A relative 16 bit branch. Bit 10 should be set to indicate that
478 the branch is not expected to be taken. The lower two bits must
480 HOWTO (R_PPC64_REL14_BRNTAKEN
, /* type */
482 2, /* size (0 = byte, 1 = short, 2 = long) */
484 TRUE
, /* pc_relative */
486 complain_overflow_signed
, /* complain_on_overflow */
487 ppc64_elf_brtaken_reloc
, /* special_function */
488 "R_PPC64_REL14_BRNTAKEN",/* name */
489 FALSE
, /* partial_inplace */
491 0x0000fffc, /* dst_mask */
492 TRUE
), /* pcrel_offset */
494 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
496 HOWTO (R_PPC64_GOT16
, /* type */
498 1, /* size (0 = byte, 1 = short, 2 = long) */
500 FALSE
, /* pc_relative */
502 complain_overflow_signed
, /* complain_on_overflow */
503 ppc64_elf_unhandled_reloc
, /* special_function */
504 "R_PPC64_GOT16", /* name */
505 FALSE
, /* partial_inplace */
507 0xffff, /* dst_mask */
508 FALSE
), /* pcrel_offset */
510 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
512 HOWTO (R_PPC64_GOT16_LO
, /* type */
514 1, /* size (0 = byte, 1 = short, 2 = long) */
516 FALSE
, /* pc_relative */
518 complain_overflow_dont
, /* complain_on_overflow */
519 ppc64_elf_unhandled_reloc
, /* special_function */
520 "R_PPC64_GOT16_LO", /* name */
521 FALSE
, /* partial_inplace */
523 0xffff, /* dst_mask */
524 FALSE
), /* pcrel_offset */
526 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
528 HOWTO (R_PPC64_GOT16_HI
, /* type */
530 1, /* size (0 = byte, 1 = short, 2 = long) */
532 FALSE
, /* pc_relative */
534 complain_overflow_signed
,/* complain_on_overflow */
535 ppc64_elf_unhandled_reloc
, /* special_function */
536 "R_PPC64_GOT16_HI", /* name */
537 FALSE
, /* partial_inplace */
539 0xffff, /* dst_mask */
540 FALSE
), /* pcrel_offset */
542 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
544 HOWTO (R_PPC64_GOT16_HA
, /* type */
546 1, /* size (0 = byte, 1 = short, 2 = long) */
548 FALSE
, /* pc_relative */
550 complain_overflow_signed
,/* complain_on_overflow */
551 ppc64_elf_unhandled_reloc
, /* special_function */
552 "R_PPC64_GOT16_HA", /* name */
553 FALSE
, /* partial_inplace */
555 0xffff, /* dst_mask */
556 FALSE
), /* pcrel_offset */
558 /* This is used only by the dynamic linker. The symbol should exist
559 both in the object being run and in some shared library. The
560 dynamic linker copies the data addressed by the symbol from the
561 shared library into the object, because the object being
562 run has to have the data at some particular address. */
563 HOWTO (R_PPC64_COPY
, /* type */
565 0, /* this one is variable size */
567 FALSE
, /* pc_relative */
569 complain_overflow_dont
, /* complain_on_overflow */
570 ppc64_elf_unhandled_reloc
, /* special_function */
571 "R_PPC64_COPY", /* name */
572 FALSE
, /* partial_inplace */
575 FALSE
), /* pcrel_offset */
577 /* Like R_PPC64_ADDR64, but used when setting global offset table
579 HOWTO (R_PPC64_GLOB_DAT
, /* type */
581 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
583 FALSE
, /* pc_relative */
585 complain_overflow_dont
, /* complain_on_overflow */
586 ppc64_elf_unhandled_reloc
, /* special_function */
587 "R_PPC64_GLOB_DAT", /* name */
588 FALSE
, /* partial_inplace */
590 ONES (64), /* dst_mask */
591 FALSE
), /* pcrel_offset */
593 /* Created by the link editor. Marks a procedure linkage table
594 entry for a symbol. */
595 HOWTO (R_PPC64_JMP_SLOT
, /* type */
597 0, /* size (0 = byte, 1 = short, 2 = long) */
599 FALSE
, /* pc_relative */
601 complain_overflow_dont
, /* complain_on_overflow */
602 ppc64_elf_unhandled_reloc
, /* special_function */
603 "R_PPC64_JMP_SLOT", /* name */
604 FALSE
, /* partial_inplace */
607 FALSE
), /* pcrel_offset */
609 /* Used only by the dynamic linker. When the object is run, this
610 doubleword64 is set to the load address of the object, plus the
612 HOWTO (R_PPC64_RELATIVE
, /* type */
614 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
616 FALSE
, /* pc_relative */
618 complain_overflow_dont
, /* complain_on_overflow */
619 bfd_elf_generic_reloc
, /* special_function */
620 "R_PPC64_RELATIVE", /* name */
621 FALSE
, /* partial_inplace */
623 ONES (64), /* dst_mask */
624 FALSE
), /* pcrel_offset */
626 /* Like R_PPC64_ADDR32, but may be unaligned. */
627 HOWTO (R_PPC64_UADDR32
, /* type */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
631 FALSE
, /* pc_relative */
633 complain_overflow_bitfield
, /* complain_on_overflow */
634 bfd_elf_generic_reloc
, /* special_function */
635 "R_PPC64_UADDR32", /* name */
636 FALSE
, /* partial_inplace */
638 0xffffffff, /* dst_mask */
639 FALSE
), /* pcrel_offset */
641 /* Like R_PPC64_ADDR16, but may be unaligned. */
642 HOWTO (R_PPC64_UADDR16
, /* type */
644 1, /* size (0 = byte, 1 = short, 2 = long) */
646 FALSE
, /* pc_relative */
648 complain_overflow_bitfield
, /* complain_on_overflow */
649 bfd_elf_generic_reloc
, /* special_function */
650 "R_PPC64_UADDR16", /* name */
651 FALSE
, /* partial_inplace */
653 0xffff, /* dst_mask */
654 FALSE
), /* pcrel_offset */
656 /* 32-bit PC relative. */
657 HOWTO (R_PPC64_REL32
, /* type */
659 2, /* size (0 = byte, 1 = short, 2 = long) */
661 TRUE
, /* pc_relative */
663 complain_overflow_signed
, /* complain_on_overflow */
664 bfd_elf_generic_reloc
, /* special_function */
665 "R_PPC64_REL32", /* name */
666 FALSE
, /* partial_inplace */
668 0xffffffff, /* dst_mask */
669 TRUE
), /* pcrel_offset */
671 /* 32-bit relocation to the symbol's procedure linkage table. */
672 HOWTO (R_PPC64_PLT32
, /* type */
674 2, /* size (0 = byte, 1 = short, 2 = long) */
676 FALSE
, /* pc_relative */
678 complain_overflow_bitfield
, /* complain_on_overflow */
679 ppc64_elf_unhandled_reloc
, /* special_function */
680 "R_PPC64_PLT32", /* name */
681 FALSE
, /* partial_inplace */
683 0xffffffff, /* dst_mask */
684 FALSE
), /* pcrel_offset */
686 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
687 FIXME: R_PPC64_PLTREL32 not supported. */
688 HOWTO (R_PPC64_PLTREL32
, /* type */
690 2, /* size (0 = byte, 1 = short, 2 = long) */
692 TRUE
, /* pc_relative */
694 complain_overflow_signed
, /* complain_on_overflow */
695 ppc64_elf_unhandled_reloc
, /* special_function */
696 "R_PPC64_PLTREL32", /* name */
697 FALSE
, /* partial_inplace */
699 0xffffffff, /* dst_mask */
700 TRUE
), /* pcrel_offset */
702 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
704 HOWTO (R_PPC64_PLT16_LO
, /* type */
706 1, /* size (0 = byte, 1 = short, 2 = long) */
708 FALSE
, /* pc_relative */
710 complain_overflow_dont
, /* complain_on_overflow */
711 ppc64_elf_unhandled_reloc
, /* special_function */
712 "R_PPC64_PLT16_LO", /* name */
713 FALSE
, /* partial_inplace */
715 0xffff, /* dst_mask */
716 FALSE
), /* pcrel_offset */
718 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
720 HOWTO (R_PPC64_PLT16_HI
, /* type */
722 1, /* size (0 = byte, 1 = short, 2 = long) */
724 FALSE
, /* pc_relative */
726 complain_overflow_signed
, /* complain_on_overflow */
727 ppc64_elf_unhandled_reloc
, /* special_function */
728 "R_PPC64_PLT16_HI", /* name */
729 FALSE
, /* partial_inplace */
731 0xffff, /* dst_mask */
732 FALSE
), /* pcrel_offset */
734 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
736 HOWTO (R_PPC64_PLT16_HA
, /* type */
738 1, /* size (0 = byte, 1 = short, 2 = long) */
740 FALSE
, /* pc_relative */
742 complain_overflow_signed
, /* complain_on_overflow */
743 ppc64_elf_unhandled_reloc
, /* special_function */
744 "R_PPC64_PLT16_HA", /* name */
745 FALSE
, /* partial_inplace */
747 0xffff, /* dst_mask */
748 FALSE
), /* pcrel_offset */
750 /* 16-bit section relative relocation. */
751 HOWTO (R_PPC64_SECTOFF
, /* type */
753 1, /* size (0 = byte, 1 = short, 2 = long) */
755 FALSE
, /* pc_relative */
757 complain_overflow_signed
, /* complain_on_overflow */
758 ppc64_elf_sectoff_reloc
, /* special_function */
759 "R_PPC64_SECTOFF", /* name */
760 FALSE
, /* partial_inplace */
762 0xffff, /* dst_mask */
763 FALSE
), /* pcrel_offset */
765 /* Like R_PPC64_SECTOFF, but no overflow warning. */
766 HOWTO (R_PPC64_SECTOFF_LO
, /* type */
768 1, /* size (0 = byte, 1 = short, 2 = long) */
770 FALSE
, /* pc_relative */
772 complain_overflow_dont
, /* complain_on_overflow */
773 ppc64_elf_sectoff_reloc
, /* special_function */
774 "R_PPC64_SECTOFF_LO", /* name */
775 FALSE
, /* partial_inplace */
777 0xffff, /* dst_mask */
778 FALSE
), /* pcrel_offset */
780 /* 16-bit upper half section relative relocation. */
781 HOWTO (R_PPC64_SECTOFF_HI
, /* type */
783 1, /* size (0 = byte, 1 = short, 2 = long) */
785 FALSE
, /* pc_relative */
787 complain_overflow_signed
, /* complain_on_overflow */
788 ppc64_elf_sectoff_reloc
, /* special_function */
789 "R_PPC64_SECTOFF_HI", /* name */
790 FALSE
, /* partial_inplace */
792 0xffff, /* dst_mask */
793 FALSE
), /* pcrel_offset */
795 /* 16-bit upper half adjusted section relative relocation. */
796 HOWTO (R_PPC64_SECTOFF_HA
, /* type */
798 1, /* size (0 = byte, 1 = short, 2 = long) */
800 FALSE
, /* pc_relative */
802 complain_overflow_signed
, /* complain_on_overflow */
803 ppc64_elf_sectoff_ha_reloc
, /* special_function */
804 "R_PPC64_SECTOFF_HA", /* name */
805 FALSE
, /* partial_inplace */
807 0xffff, /* dst_mask */
808 FALSE
), /* pcrel_offset */
810 /* Like R_PPC64_REL24 without touching the two least significant bits. */
811 HOWTO (R_PPC64_REL30
, /* type */
813 2, /* size (0 = byte, 1 = short, 2 = long) */
815 TRUE
, /* pc_relative */
817 complain_overflow_dont
, /* complain_on_overflow */
818 bfd_elf_generic_reloc
, /* special_function */
819 "R_PPC64_REL30", /* name */
820 FALSE
, /* partial_inplace */
822 0xfffffffc, /* dst_mask */
823 TRUE
), /* pcrel_offset */
825 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
827 /* A standard 64-bit relocation. */
828 HOWTO (R_PPC64_ADDR64
, /* type */
830 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
832 FALSE
, /* pc_relative */
834 complain_overflow_dont
, /* complain_on_overflow */
835 bfd_elf_generic_reloc
, /* special_function */
836 "R_PPC64_ADDR64", /* name */
837 FALSE
, /* partial_inplace */
839 ONES (64), /* dst_mask */
840 FALSE
), /* pcrel_offset */
842 /* The bits 32-47 of an address. */
843 HOWTO (R_PPC64_ADDR16_HIGHER
, /* type */
845 1, /* size (0 = byte, 1 = short, 2 = long) */
847 FALSE
, /* pc_relative */
849 complain_overflow_dont
, /* complain_on_overflow */
850 bfd_elf_generic_reloc
, /* special_function */
851 "R_PPC64_ADDR16_HIGHER", /* name */
852 FALSE
, /* partial_inplace */
854 0xffff, /* dst_mask */
855 FALSE
), /* pcrel_offset */
857 /* The bits 32-47 of an address, plus 1 if the contents of the low
858 16 bits, treated as a signed number, is negative. */
859 HOWTO (R_PPC64_ADDR16_HIGHERA
, /* type */
861 1, /* size (0 = byte, 1 = short, 2 = long) */
863 FALSE
, /* pc_relative */
865 complain_overflow_dont
, /* complain_on_overflow */
866 ppc64_elf_ha_reloc
, /* special_function */
867 "R_PPC64_ADDR16_HIGHERA", /* name */
868 FALSE
, /* partial_inplace */
870 0xffff, /* dst_mask */
871 FALSE
), /* pcrel_offset */
873 /* The bits 48-63 of an address. */
874 HOWTO (R_PPC64_ADDR16_HIGHEST
,/* type */
876 1, /* size (0 = byte, 1 = short, 2 = long) */
878 FALSE
, /* pc_relative */
880 complain_overflow_dont
, /* complain_on_overflow */
881 bfd_elf_generic_reloc
, /* special_function */
882 "R_PPC64_ADDR16_HIGHEST", /* name */
883 FALSE
, /* partial_inplace */
885 0xffff, /* dst_mask */
886 FALSE
), /* pcrel_offset */
888 /* The bits 48-63 of an address, plus 1 if the contents of the low
889 16 bits, treated as a signed number, is negative. */
890 HOWTO (R_PPC64_ADDR16_HIGHESTA
,/* type */
892 1, /* size (0 = byte, 1 = short, 2 = long) */
894 FALSE
, /* pc_relative */
896 complain_overflow_dont
, /* complain_on_overflow */
897 ppc64_elf_ha_reloc
, /* special_function */
898 "R_PPC64_ADDR16_HIGHESTA", /* name */
899 FALSE
, /* partial_inplace */
901 0xffff, /* dst_mask */
902 FALSE
), /* pcrel_offset */
904 /* Like ADDR64, but may be unaligned. */
905 HOWTO (R_PPC64_UADDR64
, /* type */
907 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
909 FALSE
, /* pc_relative */
911 complain_overflow_dont
, /* complain_on_overflow */
912 bfd_elf_generic_reloc
, /* special_function */
913 "R_PPC64_UADDR64", /* name */
914 FALSE
, /* partial_inplace */
916 ONES (64), /* dst_mask */
917 FALSE
), /* pcrel_offset */
919 /* 64-bit relative relocation. */
920 HOWTO (R_PPC64_REL64
, /* type */
922 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
924 TRUE
, /* pc_relative */
926 complain_overflow_dont
, /* complain_on_overflow */
927 bfd_elf_generic_reloc
, /* special_function */
928 "R_PPC64_REL64", /* name */
929 FALSE
, /* partial_inplace */
931 ONES (64), /* dst_mask */
932 TRUE
), /* pcrel_offset */
934 /* 64-bit relocation to the symbol's procedure linkage table. */
935 HOWTO (R_PPC64_PLT64
, /* type */
937 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
939 FALSE
, /* pc_relative */
941 complain_overflow_dont
, /* complain_on_overflow */
942 ppc64_elf_unhandled_reloc
, /* special_function */
943 "R_PPC64_PLT64", /* name */
944 FALSE
, /* partial_inplace */
946 ONES (64), /* dst_mask */
947 FALSE
), /* pcrel_offset */
949 /* 64-bit PC relative relocation to the symbol's procedure linkage
951 /* FIXME: R_PPC64_PLTREL64 not supported. */
952 HOWTO (R_PPC64_PLTREL64
, /* type */
954 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
956 TRUE
, /* pc_relative */
958 complain_overflow_dont
, /* complain_on_overflow */
959 ppc64_elf_unhandled_reloc
, /* special_function */
960 "R_PPC64_PLTREL64", /* name */
961 FALSE
, /* partial_inplace */
963 ONES (64), /* dst_mask */
964 TRUE
), /* pcrel_offset */
966 /* 16 bit TOC-relative relocation. */
968 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
969 HOWTO (R_PPC64_TOC16
, /* type */
971 1, /* size (0 = byte, 1 = short, 2 = long) */
973 FALSE
, /* pc_relative */
975 complain_overflow_signed
, /* complain_on_overflow */
976 ppc64_elf_toc_reloc
, /* special_function */
977 "R_PPC64_TOC16", /* name */
978 FALSE
, /* partial_inplace */
980 0xffff, /* dst_mask */
981 FALSE
), /* pcrel_offset */
983 /* 16 bit TOC-relative relocation without overflow. */
985 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
986 HOWTO (R_PPC64_TOC16_LO
, /* type */
988 1, /* size (0 = byte, 1 = short, 2 = long) */
990 FALSE
, /* pc_relative */
992 complain_overflow_dont
, /* complain_on_overflow */
993 ppc64_elf_toc_reloc
, /* special_function */
994 "R_PPC64_TOC16_LO", /* name */
995 FALSE
, /* partial_inplace */
997 0xffff, /* dst_mask */
998 FALSE
), /* pcrel_offset */
1000 /* 16 bit TOC-relative relocation, high 16 bits. */
1002 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
1003 HOWTO (R_PPC64_TOC16_HI
, /* type */
1004 16, /* rightshift */
1005 1, /* size (0 = byte, 1 = short, 2 = long) */
1007 FALSE
, /* pc_relative */
1009 complain_overflow_signed
, /* complain_on_overflow */
1010 ppc64_elf_toc_reloc
, /* special_function */
1011 "R_PPC64_TOC16_HI", /* name */
1012 FALSE
, /* partial_inplace */
1014 0xffff, /* dst_mask */
1015 FALSE
), /* pcrel_offset */
1017 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
1018 contents of the low 16 bits, treated as a signed number, is
1021 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
1022 HOWTO (R_PPC64_TOC16_HA
, /* type */
1023 16, /* rightshift */
1024 1, /* size (0 = byte, 1 = short, 2 = long) */
1026 FALSE
, /* pc_relative */
1028 complain_overflow_signed
, /* complain_on_overflow */
1029 ppc64_elf_toc_ha_reloc
, /* special_function */
1030 "R_PPC64_TOC16_HA", /* name */
1031 FALSE
, /* partial_inplace */
1033 0xffff, /* dst_mask */
1034 FALSE
), /* pcrel_offset */
1036 /* 64-bit relocation; insert value of TOC base (.TOC.). */
1038 /* R_PPC64_TOC 51 doubleword64 .TOC. */
1039 HOWTO (R_PPC64_TOC
, /* type */
1041 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1043 FALSE
, /* pc_relative */
1045 complain_overflow_dont
, /* complain_on_overflow */
1046 ppc64_elf_toc64_reloc
, /* special_function */
1047 "R_PPC64_TOC", /* name */
1048 FALSE
, /* partial_inplace */
1050 ONES (64), /* dst_mask */
1051 FALSE
), /* pcrel_offset */
1053 /* Like R_PPC64_GOT16, but also informs the link editor that the
1054 value to relocate may (!) refer to a PLT entry which the link
1055 editor (a) may replace with the symbol value. If the link editor
1056 is unable to fully resolve the symbol, it may (b) create a PLT
1057 entry and store the address to the new PLT entry in the GOT.
1058 This permits lazy resolution of function symbols at run time.
1059 The link editor may also skip all of this and just (c) emit a
1060 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1061 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1062 HOWTO (R_PPC64_PLTGOT16
, /* type */
1064 1, /* size (0 = byte, 1 = short, 2 = long) */
1066 FALSE
, /* pc_relative */
1068 complain_overflow_signed
, /* complain_on_overflow */
1069 ppc64_elf_unhandled_reloc
, /* special_function */
1070 "R_PPC64_PLTGOT16", /* name */
1071 FALSE
, /* partial_inplace */
1073 0xffff, /* dst_mask */
1074 FALSE
), /* pcrel_offset */
1076 /* Like R_PPC64_PLTGOT16, but without overflow. */
1077 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1078 HOWTO (R_PPC64_PLTGOT16_LO
, /* type */
1080 1, /* size (0 = byte, 1 = short, 2 = long) */
1082 FALSE
, /* pc_relative */
1084 complain_overflow_dont
, /* complain_on_overflow */
1085 ppc64_elf_unhandled_reloc
, /* special_function */
1086 "R_PPC64_PLTGOT16_LO", /* name */
1087 FALSE
, /* partial_inplace */
1089 0xffff, /* dst_mask */
1090 FALSE
), /* pcrel_offset */
1092 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1093 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1094 HOWTO (R_PPC64_PLTGOT16_HI
, /* type */
1095 16, /* rightshift */
1096 1, /* size (0 = byte, 1 = short, 2 = long) */
1098 FALSE
, /* pc_relative */
1100 complain_overflow_signed
, /* complain_on_overflow */
1101 ppc64_elf_unhandled_reloc
, /* special_function */
1102 "R_PPC64_PLTGOT16_HI", /* name */
1103 FALSE
, /* partial_inplace */
1105 0xffff, /* dst_mask */
1106 FALSE
), /* pcrel_offset */
1108 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1109 1 if the contents of the low 16 bits, treated as a signed number,
1111 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1112 HOWTO (R_PPC64_PLTGOT16_HA
, /* type */
1113 16, /* rightshift */
1114 1, /* size (0 = byte, 1 = short, 2 = long) */
1116 FALSE
, /* pc_relative */
1118 complain_overflow_signed
, /* complain_on_overflow */
1119 ppc64_elf_unhandled_reloc
, /* special_function */
1120 "R_PPC64_PLTGOT16_HA", /* name */
1121 FALSE
, /* partial_inplace */
1123 0xffff, /* dst_mask */
1124 FALSE
), /* pcrel_offset */
1126 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1127 HOWTO (R_PPC64_ADDR16_DS
, /* type */
1129 1, /* size (0 = byte, 1 = short, 2 = long) */
1131 FALSE
, /* pc_relative */
1133 complain_overflow_signed
, /* complain_on_overflow */
1134 bfd_elf_generic_reloc
, /* special_function */
1135 "R_PPC64_ADDR16_DS", /* name */
1136 FALSE
, /* partial_inplace */
1138 0xfffc, /* dst_mask */
1139 FALSE
), /* pcrel_offset */
1141 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1142 HOWTO (R_PPC64_ADDR16_LO_DS
, /* type */
1144 1, /* size (0 = byte, 1 = short, 2 = long) */
1146 FALSE
, /* pc_relative */
1148 complain_overflow_dont
,/* complain_on_overflow */
1149 bfd_elf_generic_reloc
, /* special_function */
1150 "R_PPC64_ADDR16_LO_DS",/* name */
1151 FALSE
, /* partial_inplace */
1153 0xfffc, /* dst_mask */
1154 FALSE
), /* pcrel_offset */
1156 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1157 HOWTO (R_PPC64_GOT16_DS
, /* type */
1159 1, /* size (0 = byte, 1 = short, 2 = long) */
1161 FALSE
, /* pc_relative */
1163 complain_overflow_signed
, /* complain_on_overflow */
1164 ppc64_elf_unhandled_reloc
, /* special_function */
1165 "R_PPC64_GOT16_DS", /* name */
1166 FALSE
, /* partial_inplace */
1168 0xfffc, /* dst_mask */
1169 FALSE
), /* pcrel_offset */
1171 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1172 HOWTO (R_PPC64_GOT16_LO_DS
, /* type */
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1176 FALSE
, /* pc_relative */
1178 complain_overflow_dont
, /* complain_on_overflow */
1179 ppc64_elf_unhandled_reloc
, /* special_function */
1180 "R_PPC64_GOT16_LO_DS", /* name */
1181 FALSE
, /* partial_inplace */
1183 0xfffc, /* dst_mask */
1184 FALSE
), /* pcrel_offset */
1186 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1187 HOWTO (R_PPC64_PLT16_LO_DS
, /* type */
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1191 FALSE
, /* pc_relative */
1193 complain_overflow_dont
, /* complain_on_overflow */
1194 ppc64_elf_unhandled_reloc
, /* special_function */
1195 "R_PPC64_PLT16_LO_DS", /* name */
1196 FALSE
, /* partial_inplace */
1198 0xfffc, /* dst_mask */
1199 FALSE
), /* pcrel_offset */
1201 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1202 HOWTO (R_PPC64_SECTOFF_DS
, /* type */
1204 1, /* size (0 = byte, 1 = short, 2 = long) */
1206 FALSE
, /* pc_relative */
1208 complain_overflow_signed
, /* complain_on_overflow */
1209 ppc64_elf_sectoff_reloc
, /* special_function */
1210 "R_PPC64_SECTOFF_DS", /* name */
1211 FALSE
, /* partial_inplace */
1213 0xfffc, /* dst_mask */
1214 FALSE
), /* pcrel_offset */
1216 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1217 HOWTO (R_PPC64_SECTOFF_LO_DS
, /* type */
1219 1, /* size (0 = byte, 1 = short, 2 = long) */
1221 FALSE
, /* pc_relative */
1223 complain_overflow_dont
, /* complain_on_overflow */
1224 ppc64_elf_sectoff_reloc
, /* special_function */
1225 "R_PPC64_SECTOFF_LO_DS",/* name */
1226 FALSE
, /* partial_inplace */
1228 0xfffc, /* dst_mask */
1229 FALSE
), /* pcrel_offset */
1231 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1232 HOWTO (R_PPC64_TOC16_DS
, /* type */
1234 1, /* size (0 = byte, 1 = short, 2 = long) */
1236 FALSE
, /* pc_relative */
1238 complain_overflow_signed
, /* complain_on_overflow */
1239 ppc64_elf_toc_reloc
, /* special_function */
1240 "R_PPC64_TOC16_DS", /* name */
1241 FALSE
, /* partial_inplace */
1243 0xfffc, /* dst_mask */
1244 FALSE
), /* pcrel_offset */
1246 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1247 HOWTO (R_PPC64_TOC16_LO_DS
, /* type */
1249 1, /* size (0 = byte, 1 = short, 2 = long) */
1251 FALSE
, /* pc_relative */
1253 complain_overflow_dont
, /* complain_on_overflow */
1254 ppc64_elf_toc_reloc
, /* special_function */
1255 "R_PPC64_TOC16_LO_DS", /* name */
1256 FALSE
, /* partial_inplace */
1258 0xfffc, /* dst_mask */
1259 FALSE
), /* pcrel_offset */
1261 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1262 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1263 HOWTO (R_PPC64_PLTGOT16_DS
, /* type */
1265 1, /* size (0 = byte, 1 = short, 2 = long) */
1267 FALSE
, /* pc_relative */
1269 complain_overflow_signed
, /* complain_on_overflow */
1270 ppc64_elf_unhandled_reloc
, /* special_function */
1271 "R_PPC64_PLTGOT16_DS", /* name */
1272 FALSE
, /* partial_inplace */
1274 0xfffc, /* dst_mask */
1275 FALSE
), /* pcrel_offset */
1277 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1278 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1279 HOWTO (R_PPC64_PLTGOT16_LO_DS
,/* type */
1281 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 FALSE
, /* pc_relative */
1285 complain_overflow_dont
, /* complain_on_overflow */
1286 ppc64_elf_unhandled_reloc
, /* special_function */
1287 "R_PPC64_PLTGOT16_LO_DS",/* name */
1288 FALSE
, /* partial_inplace */
1290 0xfffc, /* dst_mask */
1291 FALSE
), /* pcrel_offset */
1293 /* Marker relocs for TLS. */
1296 2, /* size (0 = byte, 1 = short, 2 = long) */
1298 FALSE
, /* pc_relative */
1300 complain_overflow_dont
, /* complain_on_overflow */
1301 bfd_elf_generic_reloc
, /* special_function */
1302 "R_PPC64_TLS", /* name */
1303 FALSE
, /* partial_inplace */
1306 FALSE
), /* pcrel_offset */
1308 HOWTO (R_PPC64_TLSGD
,
1310 2, /* size (0 = byte, 1 = short, 2 = long) */
1312 FALSE
, /* pc_relative */
1314 complain_overflow_dont
, /* complain_on_overflow */
1315 bfd_elf_generic_reloc
, /* special_function */
1316 "R_PPC64_TLSGD", /* name */
1317 FALSE
, /* partial_inplace */
1320 FALSE
), /* pcrel_offset */
1322 HOWTO (R_PPC64_TLSLD
,
1324 2, /* size (0 = byte, 1 = short, 2 = long) */
1326 FALSE
, /* pc_relative */
1328 complain_overflow_dont
, /* complain_on_overflow */
1329 bfd_elf_generic_reloc
, /* special_function */
1330 "R_PPC64_TLSLD", /* name */
1331 FALSE
, /* partial_inplace */
1334 FALSE
), /* pcrel_offset */
1336 HOWTO (R_PPC64_TOCSAVE
,
1338 2, /* size (0 = byte, 1 = short, 2 = long) */
1340 FALSE
, /* pc_relative */
1342 complain_overflow_dont
, /* complain_on_overflow */
1343 bfd_elf_generic_reloc
, /* special_function */
1344 "R_PPC64_TOCSAVE", /* name */
1345 FALSE
, /* partial_inplace */
1348 FALSE
), /* pcrel_offset */
1350 /* Computes the load module index of the load module that contains the
1351 definition of its TLS sym. */
1352 HOWTO (R_PPC64_DTPMOD64
,
1354 4, /* size (0 = byte, 1 = short, 2 = long) */
1356 FALSE
, /* pc_relative */
1358 complain_overflow_dont
, /* complain_on_overflow */
1359 ppc64_elf_unhandled_reloc
, /* special_function */
1360 "R_PPC64_DTPMOD64", /* name */
1361 FALSE
, /* partial_inplace */
1363 ONES (64), /* dst_mask */
1364 FALSE
), /* pcrel_offset */
1366 /* Computes a dtv-relative displacement, the difference between the value
1367 of sym+add and the base address of the thread-local storage block that
1368 contains the definition of sym, minus 0x8000. */
1369 HOWTO (R_PPC64_DTPREL64
,
1371 4, /* size (0 = byte, 1 = short, 2 = long) */
1373 FALSE
, /* pc_relative */
1375 complain_overflow_dont
, /* complain_on_overflow */
1376 ppc64_elf_unhandled_reloc
, /* special_function */
1377 "R_PPC64_DTPREL64", /* name */
1378 FALSE
, /* partial_inplace */
1380 ONES (64), /* dst_mask */
1381 FALSE
), /* pcrel_offset */
1383 /* A 16 bit dtprel reloc. */
1384 HOWTO (R_PPC64_DTPREL16
,
1386 1, /* size (0 = byte, 1 = short, 2 = long) */
1388 FALSE
, /* pc_relative */
1390 complain_overflow_signed
, /* complain_on_overflow */
1391 ppc64_elf_unhandled_reloc
, /* special_function */
1392 "R_PPC64_DTPREL16", /* name */
1393 FALSE
, /* partial_inplace */
1395 0xffff, /* dst_mask */
1396 FALSE
), /* pcrel_offset */
1398 /* Like DTPREL16, but no overflow. */
1399 HOWTO (R_PPC64_DTPREL16_LO
,
1401 1, /* size (0 = byte, 1 = short, 2 = long) */
1403 FALSE
, /* pc_relative */
1405 complain_overflow_dont
, /* complain_on_overflow */
1406 ppc64_elf_unhandled_reloc
, /* special_function */
1407 "R_PPC64_DTPREL16_LO", /* name */
1408 FALSE
, /* partial_inplace */
1410 0xffff, /* dst_mask */
1411 FALSE
), /* pcrel_offset */
1413 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1414 HOWTO (R_PPC64_DTPREL16_HI
,
1415 16, /* rightshift */
1416 1, /* size (0 = byte, 1 = short, 2 = long) */
1418 FALSE
, /* pc_relative */
1420 complain_overflow_signed
, /* complain_on_overflow */
1421 ppc64_elf_unhandled_reloc
, /* special_function */
1422 "R_PPC64_DTPREL16_HI", /* name */
1423 FALSE
, /* partial_inplace */
1425 0xffff, /* dst_mask */
1426 FALSE
), /* pcrel_offset */
1428 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1429 HOWTO (R_PPC64_DTPREL16_HA
,
1430 16, /* rightshift */
1431 1, /* size (0 = byte, 1 = short, 2 = long) */
1433 FALSE
, /* pc_relative */
1435 complain_overflow_signed
, /* complain_on_overflow */
1436 ppc64_elf_unhandled_reloc
, /* special_function */
1437 "R_PPC64_DTPREL16_HA", /* name */
1438 FALSE
, /* partial_inplace */
1440 0xffff, /* dst_mask */
1441 FALSE
), /* pcrel_offset */
1443 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1444 HOWTO (R_PPC64_DTPREL16_HIGHER
,
1445 32, /* rightshift */
1446 1, /* size (0 = byte, 1 = short, 2 = long) */
1448 FALSE
, /* pc_relative */
1450 complain_overflow_dont
, /* complain_on_overflow */
1451 ppc64_elf_unhandled_reloc
, /* special_function */
1452 "R_PPC64_DTPREL16_HIGHER", /* name */
1453 FALSE
, /* partial_inplace */
1455 0xffff, /* dst_mask */
1456 FALSE
), /* pcrel_offset */
1458 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1459 HOWTO (R_PPC64_DTPREL16_HIGHERA
,
1460 32, /* rightshift */
1461 1, /* size (0 = byte, 1 = short, 2 = long) */
1463 FALSE
, /* pc_relative */
1465 complain_overflow_dont
, /* complain_on_overflow */
1466 ppc64_elf_unhandled_reloc
, /* special_function */
1467 "R_PPC64_DTPREL16_HIGHERA", /* name */
1468 FALSE
, /* partial_inplace */
1470 0xffff, /* dst_mask */
1471 FALSE
), /* pcrel_offset */
1473 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1474 HOWTO (R_PPC64_DTPREL16_HIGHEST
,
1475 48, /* rightshift */
1476 1, /* size (0 = byte, 1 = short, 2 = long) */
1478 FALSE
, /* pc_relative */
1480 complain_overflow_dont
, /* complain_on_overflow */
1481 ppc64_elf_unhandled_reloc
, /* special_function */
1482 "R_PPC64_DTPREL16_HIGHEST", /* name */
1483 FALSE
, /* partial_inplace */
1485 0xffff, /* dst_mask */
1486 FALSE
), /* pcrel_offset */
1488 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1489 HOWTO (R_PPC64_DTPREL16_HIGHESTA
,
1490 48, /* rightshift */
1491 1, /* size (0 = byte, 1 = short, 2 = long) */
1493 FALSE
, /* pc_relative */
1495 complain_overflow_dont
, /* complain_on_overflow */
1496 ppc64_elf_unhandled_reloc
, /* special_function */
1497 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1498 FALSE
, /* partial_inplace */
1500 0xffff, /* dst_mask */
1501 FALSE
), /* pcrel_offset */
1503 /* Like DTPREL16, but for insns with a DS field. */
1504 HOWTO (R_PPC64_DTPREL16_DS
,
1506 1, /* size (0 = byte, 1 = short, 2 = long) */
1508 FALSE
, /* pc_relative */
1510 complain_overflow_signed
, /* complain_on_overflow */
1511 ppc64_elf_unhandled_reloc
, /* special_function */
1512 "R_PPC64_DTPREL16_DS", /* name */
1513 FALSE
, /* partial_inplace */
1515 0xfffc, /* dst_mask */
1516 FALSE
), /* pcrel_offset */
1518 /* Like DTPREL16_DS, but no overflow. */
1519 HOWTO (R_PPC64_DTPREL16_LO_DS
,
1521 1, /* size (0 = byte, 1 = short, 2 = long) */
1523 FALSE
, /* pc_relative */
1525 complain_overflow_dont
, /* complain_on_overflow */
1526 ppc64_elf_unhandled_reloc
, /* special_function */
1527 "R_PPC64_DTPREL16_LO_DS", /* name */
1528 FALSE
, /* partial_inplace */
1530 0xfffc, /* dst_mask */
1531 FALSE
), /* pcrel_offset */
1533 /* Computes a tp-relative displacement, the difference between the value of
1534 sym+add and the value of the thread pointer (r13). */
1535 HOWTO (R_PPC64_TPREL64
,
1537 4, /* size (0 = byte, 1 = short, 2 = long) */
1539 FALSE
, /* pc_relative */
1541 complain_overflow_dont
, /* complain_on_overflow */
1542 ppc64_elf_unhandled_reloc
, /* special_function */
1543 "R_PPC64_TPREL64", /* name */
1544 FALSE
, /* partial_inplace */
1546 ONES (64), /* dst_mask */
1547 FALSE
), /* pcrel_offset */
1549 /* A 16 bit tprel reloc. */
1550 HOWTO (R_PPC64_TPREL16
,
1552 1, /* size (0 = byte, 1 = short, 2 = long) */
1554 FALSE
, /* pc_relative */
1556 complain_overflow_signed
, /* complain_on_overflow */
1557 ppc64_elf_unhandled_reloc
, /* special_function */
1558 "R_PPC64_TPREL16", /* name */
1559 FALSE
, /* partial_inplace */
1561 0xffff, /* dst_mask */
1562 FALSE
), /* pcrel_offset */
1564 /* Like TPREL16, but no overflow. */
1565 HOWTO (R_PPC64_TPREL16_LO
,
1567 1, /* size (0 = byte, 1 = short, 2 = long) */
1569 FALSE
, /* pc_relative */
1571 complain_overflow_dont
, /* complain_on_overflow */
1572 ppc64_elf_unhandled_reloc
, /* special_function */
1573 "R_PPC64_TPREL16_LO", /* name */
1574 FALSE
, /* partial_inplace */
1576 0xffff, /* dst_mask */
1577 FALSE
), /* pcrel_offset */
1579 /* Like TPREL16_LO, but next higher group of 16 bits. */
1580 HOWTO (R_PPC64_TPREL16_HI
,
1581 16, /* rightshift */
1582 1, /* size (0 = byte, 1 = short, 2 = long) */
1584 FALSE
, /* pc_relative */
1586 complain_overflow_signed
, /* complain_on_overflow */
1587 ppc64_elf_unhandled_reloc
, /* special_function */
1588 "R_PPC64_TPREL16_HI", /* name */
1589 FALSE
, /* partial_inplace */
1591 0xffff, /* dst_mask */
1592 FALSE
), /* pcrel_offset */
1594 /* Like TPREL16_HI, but adjust for low 16 bits. */
1595 HOWTO (R_PPC64_TPREL16_HA
,
1596 16, /* rightshift */
1597 1, /* size (0 = byte, 1 = short, 2 = long) */
1599 FALSE
, /* pc_relative */
1601 complain_overflow_signed
, /* complain_on_overflow */
1602 ppc64_elf_unhandled_reloc
, /* special_function */
1603 "R_PPC64_TPREL16_HA", /* name */
1604 FALSE
, /* partial_inplace */
1606 0xffff, /* dst_mask */
1607 FALSE
), /* pcrel_offset */
1609 /* Like TPREL16_HI, but next higher group of 16 bits. */
1610 HOWTO (R_PPC64_TPREL16_HIGHER
,
1611 32, /* rightshift */
1612 1, /* size (0 = byte, 1 = short, 2 = long) */
1614 FALSE
, /* pc_relative */
1616 complain_overflow_dont
, /* complain_on_overflow */
1617 ppc64_elf_unhandled_reloc
, /* special_function */
1618 "R_PPC64_TPREL16_HIGHER", /* name */
1619 FALSE
, /* partial_inplace */
1621 0xffff, /* dst_mask */
1622 FALSE
), /* pcrel_offset */
1624 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1625 HOWTO (R_PPC64_TPREL16_HIGHERA
,
1626 32, /* rightshift */
1627 1, /* size (0 = byte, 1 = short, 2 = long) */
1629 FALSE
, /* pc_relative */
1631 complain_overflow_dont
, /* complain_on_overflow */
1632 ppc64_elf_unhandled_reloc
, /* special_function */
1633 "R_PPC64_TPREL16_HIGHERA", /* name */
1634 FALSE
, /* partial_inplace */
1636 0xffff, /* dst_mask */
1637 FALSE
), /* pcrel_offset */
1639 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1640 HOWTO (R_PPC64_TPREL16_HIGHEST
,
1641 48, /* rightshift */
1642 1, /* size (0 = byte, 1 = short, 2 = long) */
1644 FALSE
, /* pc_relative */
1646 complain_overflow_dont
, /* complain_on_overflow */
1647 ppc64_elf_unhandled_reloc
, /* special_function */
1648 "R_PPC64_TPREL16_HIGHEST", /* name */
1649 FALSE
, /* partial_inplace */
1651 0xffff, /* dst_mask */
1652 FALSE
), /* pcrel_offset */
1654 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1655 HOWTO (R_PPC64_TPREL16_HIGHESTA
,
1656 48, /* rightshift */
1657 1, /* size (0 = byte, 1 = short, 2 = long) */
1659 FALSE
, /* pc_relative */
1661 complain_overflow_dont
, /* complain_on_overflow */
1662 ppc64_elf_unhandled_reloc
, /* special_function */
1663 "R_PPC64_TPREL16_HIGHESTA", /* name */
1664 FALSE
, /* partial_inplace */
1666 0xffff, /* dst_mask */
1667 FALSE
), /* pcrel_offset */
1669 /* Like TPREL16, but for insns with a DS field. */
1670 HOWTO (R_PPC64_TPREL16_DS
,
1672 1, /* size (0 = byte, 1 = short, 2 = long) */
1674 FALSE
, /* pc_relative */
1676 complain_overflow_signed
, /* complain_on_overflow */
1677 ppc64_elf_unhandled_reloc
, /* special_function */
1678 "R_PPC64_TPREL16_DS", /* name */
1679 FALSE
, /* partial_inplace */
1681 0xfffc, /* dst_mask */
1682 FALSE
), /* pcrel_offset */
1684 /* Like TPREL16_DS, but no overflow. */
1685 HOWTO (R_PPC64_TPREL16_LO_DS
,
1687 1, /* size (0 = byte, 1 = short, 2 = long) */
1689 FALSE
, /* pc_relative */
1691 complain_overflow_dont
, /* complain_on_overflow */
1692 ppc64_elf_unhandled_reloc
, /* special_function */
1693 "R_PPC64_TPREL16_LO_DS", /* name */
1694 FALSE
, /* partial_inplace */
1696 0xfffc, /* dst_mask */
1697 FALSE
), /* pcrel_offset */
1699 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1700 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1701 to the first entry relative to the TOC base (r2). */
1702 HOWTO (R_PPC64_GOT_TLSGD16
,
1704 1, /* size (0 = byte, 1 = short, 2 = long) */
1706 FALSE
, /* pc_relative */
1708 complain_overflow_signed
, /* complain_on_overflow */
1709 ppc64_elf_unhandled_reloc
, /* special_function */
1710 "R_PPC64_GOT_TLSGD16", /* name */
1711 FALSE
, /* partial_inplace */
1713 0xffff, /* dst_mask */
1714 FALSE
), /* pcrel_offset */
1716 /* Like GOT_TLSGD16, but no overflow. */
1717 HOWTO (R_PPC64_GOT_TLSGD16_LO
,
1719 1, /* size (0 = byte, 1 = short, 2 = long) */
1721 FALSE
, /* pc_relative */
1723 complain_overflow_dont
, /* complain_on_overflow */
1724 ppc64_elf_unhandled_reloc
, /* special_function */
1725 "R_PPC64_GOT_TLSGD16_LO", /* name */
1726 FALSE
, /* partial_inplace */
1728 0xffff, /* dst_mask */
1729 FALSE
), /* pcrel_offset */
1731 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1732 HOWTO (R_PPC64_GOT_TLSGD16_HI
,
1733 16, /* rightshift */
1734 1, /* size (0 = byte, 1 = short, 2 = long) */
1736 FALSE
, /* pc_relative */
1738 complain_overflow_signed
, /* complain_on_overflow */
1739 ppc64_elf_unhandled_reloc
, /* special_function */
1740 "R_PPC64_GOT_TLSGD16_HI", /* name */
1741 FALSE
, /* partial_inplace */
1743 0xffff, /* dst_mask */
1744 FALSE
), /* pcrel_offset */
1746 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1747 HOWTO (R_PPC64_GOT_TLSGD16_HA
,
1748 16, /* rightshift */
1749 1, /* size (0 = byte, 1 = short, 2 = long) */
1751 FALSE
, /* pc_relative */
1753 complain_overflow_signed
, /* complain_on_overflow */
1754 ppc64_elf_unhandled_reloc
, /* special_function */
1755 "R_PPC64_GOT_TLSGD16_HA", /* name */
1756 FALSE
, /* partial_inplace */
1758 0xffff, /* dst_mask */
1759 FALSE
), /* pcrel_offset */
1761 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1762 with values (sym+add)@dtpmod and zero, and computes the offset to the
1763 first entry relative to the TOC base (r2). */
1764 HOWTO (R_PPC64_GOT_TLSLD16
,
1766 1, /* size (0 = byte, 1 = short, 2 = long) */
1768 FALSE
, /* pc_relative */
1770 complain_overflow_signed
, /* complain_on_overflow */
1771 ppc64_elf_unhandled_reloc
, /* special_function */
1772 "R_PPC64_GOT_TLSLD16", /* name */
1773 FALSE
, /* partial_inplace */
1775 0xffff, /* dst_mask */
1776 FALSE
), /* pcrel_offset */
1778 /* Like GOT_TLSLD16, but no overflow. */
1779 HOWTO (R_PPC64_GOT_TLSLD16_LO
,
1781 1, /* size (0 = byte, 1 = short, 2 = long) */
1783 FALSE
, /* pc_relative */
1785 complain_overflow_dont
, /* complain_on_overflow */
1786 ppc64_elf_unhandled_reloc
, /* special_function */
1787 "R_PPC64_GOT_TLSLD16_LO", /* name */
1788 FALSE
, /* partial_inplace */
1790 0xffff, /* dst_mask */
1791 FALSE
), /* pcrel_offset */
1793 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1794 HOWTO (R_PPC64_GOT_TLSLD16_HI
,
1795 16, /* rightshift */
1796 1, /* size (0 = byte, 1 = short, 2 = long) */
1798 FALSE
, /* pc_relative */
1800 complain_overflow_signed
, /* complain_on_overflow */
1801 ppc64_elf_unhandled_reloc
, /* special_function */
1802 "R_PPC64_GOT_TLSLD16_HI", /* name */
1803 FALSE
, /* partial_inplace */
1805 0xffff, /* dst_mask */
1806 FALSE
), /* pcrel_offset */
1808 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1809 HOWTO (R_PPC64_GOT_TLSLD16_HA
,
1810 16, /* rightshift */
1811 1, /* size (0 = byte, 1 = short, 2 = long) */
1813 FALSE
, /* pc_relative */
1815 complain_overflow_signed
, /* complain_on_overflow */
1816 ppc64_elf_unhandled_reloc
, /* special_function */
1817 "R_PPC64_GOT_TLSLD16_HA", /* name */
1818 FALSE
, /* partial_inplace */
1820 0xffff, /* dst_mask */
1821 FALSE
), /* pcrel_offset */
1823 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1824 the offset to the entry relative to the TOC base (r2). */
1825 HOWTO (R_PPC64_GOT_DTPREL16_DS
,
1827 1, /* size (0 = byte, 1 = short, 2 = long) */
1829 FALSE
, /* pc_relative */
1831 complain_overflow_signed
, /* complain_on_overflow */
1832 ppc64_elf_unhandled_reloc
, /* special_function */
1833 "R_PPC64_GOT_DTPREL16_DS", /* name */
1834 FALSE
, /* partial_inplace */
1836 0xfffc, /* dst_mask */
1837 FALSE
), /* pcrel_offset */
1839 /* Like GOT_DTPREL16_DS, but no overflow. */
1840 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS
,
1842 1, /* size (0 = byte, 1 = short, 2 = long) */
1844 FALSE
, /* pc_relative */
1846 complain_overflow_dont
, /* complain_on_overflow */
1847 ppc64_elf_unhandled_reloc
, /* special_function */
1848 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1849 FALSE
, /* partial_inplace */
1851 0xfffc, /* dst_mask */
1852 FALSE
), /* pcrel_offset */
1854 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1855 HOWTO (R_PPC64_GOT_DTPREL16_HI
,
1856 16, /* rightshift */
1857 1, /* size (0 = byte, 1 = short, 2 = long) */
1859 FALSE
, /* pc_relative */
1861 complain_overflow_signed
, /* complain_on_overflow */
1862 ppc64_elf_unhandled_reloc
, /* special_function */
1863 "R_PPC64_GOT_DTPREL16_HI", /* name */
1864 FALSE
, /* partial_inplace */
1866 0xffff, /* dst_mask */
1867 FALSE
), /* pcrel_offset */
1869 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1870 HOWTO (R_PPC64_GOT_DTPREL16_HA
,
1871 16, /* rightshift */
1872 1, /* size (0 = byte, 1 = short, 2 = long) */
1874 FALSE
, /* pc_relative */
1876 complain_overflow_signed
, /* complain_on_overflow */
1877 ppc64_elf_unhandled_reloc
, /* special_function */
1878 "R_PPC64_GOT_DTPREL16_HA", /* name */
1879 FALSE
, /* partial_inplace */
1881 0xffff, /* dst_mask */
1882 FALSE
), /* pcrel_offset */
1884 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1885 offset to the entry relative to the TOC base (r2). */
1886 HOWTO (R_PPC64_GOT_TPREL16_DS
,
1888 1, /* size (0 = byte, 1 = short, 2 = long) */
1890 FALSE
, /* pc_relative */
1892 complain_overflow_signed
, /* complain_on_overflow */
1893 ppc64_elf_unhandled_reloc
, /* special_function */
1894 "R_PPC64_GOT_TPREL16_DS", /* name */
1895 FALSE
, /* partial_inplace */
1897 0xfffc, /* dst_mask */
1898 FALSE
), /* pcrel_offset */
1900 /* Like GOT_TPREL16_DS, but no overflow. */
1901 HOWTO (R_PPC64_GOT_TPREL16_LO_DS
,
1903 1, /* size (0 = byte, 1 = short, 2 = long) */
1905 FALSE
, /* pc_relative */
1907 complain_overflow_dont
, /* complain_on_overflow */
1908 ppc64_elf_unhandled_reloc
, /* special_function */
1909 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1910 FALSE
, /* partial_inplace */
1912 0xfffc, /* dst_mask */
1913 FALSE
), /* pcrel_offset */
1915 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1916 HOWTO (R_PPC64_GOT_TPREL16_HI
,
1917 16, /* rightshift */
1918 1, /* size (0 = byte, 1 = short, 2 = long) */
1920 FALSE
, /* pc_relative */
1922 complain_overflow_signed
, /* complain_on_overflow */
1923 ppc64_elf_unhandled_reloc
, /* special_function */
1924 "R_PPC64_GOT_TPREL16_HI", /* name */
1925 FALSE
, /* partial_inplace */
1927 0xffff, /* dst_mask */
1928 FALSE
), /* pcrel_offset */
1930 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1931 HOWTO (R_PPC64_GOT_TPREL16_HA
,
1932 16, /* rightshift */
1933 1, /* size (0 = byte, 1 = short, 2 = long) */
1935 FALSE
, /* pc_relative */
1937 complain_overflow_signed
, /* complain_on_overflow */
1938 ppc64_elf_unhandled_reloc
, /* special_function */
1939 "R_PPC64_GOT_TPREL16_HA", /* name */
1940 FALSE
, /* partial_inplace */
1942 0xffff, /* dst_mask */
1943 FALSE
), /* pcrel_offset */
1945 HOWTO (R_PPC64_JMP_IREL
, /* type */
1947 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1949 FALSE
, /* pc_relative */
1951 complain_overflow_dont
, /* complain_on_overflow */
1952 ppc64_elf_unhandled_reloc
, /* special_function */
1953 "R_PPC64_JMP_IREL", /* name */
1954 FALSE
, /* partial_inplace */
1957 FALSE
), /* pcrel_offset */
1959 HOWTO (R_PPC64_IRELATIVE
, /* type */
1961 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1963 FALSE
, /* pc_relative */
1965 complain_overflow_dont
, /* complain_on_overflow */
1966 bfd_elf_generic_reloc
, /* special_function */
1967 "R_PPC64_IRELATIVE", /* name */
1968 FALSE
, /* partial_inplace */
1970 ONES (64), /* dst_mask */
1971 FALSE
), /* pcrel_offset */
1973 /* A 16 bit relative relocation. */
1974 HOWTO (R_PPC64_REL16
, /* type */
1976 1, /* size (0 = byte, 1 = short, 2 = long) */
1978 TRUE
, /* pc_relative */
1980 complain_overflow_signed
, /* complain_on_overflow */
1981 bfd_elf_generic_reloc
, /* special_function */
1982 "R_PPC64_REL16", /* name */
1983 FALSE
, /* partial_inplace */
1985 0xffff, /* dst_mask */
1986 TRUE
), /* pcrel_offset */
1988 /* A 16 bit relative relocation without overflow. */
1989 HOWTO (R_PPC64_REL16_LO
, /* type */
1991 1, /* size (0 = byte, 1 = short, 2 = long) */
1993 TRUE
, /* pc_relative */
1995 complain_overflow_dont
,/* complain_on_overflow */
1996 bfd_elf_generic_reloc
, /* special_function */
1997 "R_PPC64_REL16_LO", /* name */
1998 FALSE
, /* partial_inplace */
2000 0xffff, /* dst_mask */
2001 TRUE
), /* pcrel_offset */
2003 /* The high order 16 bits of a relative address. */
2004 HOWTO (R_PPC64_REL16_HI
, /* type */
2005 16, /* rightshift */
2006 1, /* size (0 = byte, 1 = short, 2 = long) */
2008 TRUE
, /* pc_relative */
2010 complain_overflow_signed
, /* complain_on_overflow */
2011 bfd_elf_generic_reloc
, /* special_function */
2012 "R_PPC64_REL16_HI", /* name */
2013 FALSE
, /* partial_inplace */
2015 0xffff, /* dst_mask */
2016 TRUE
), /* pcrel_offset */
2018 /* The high order 16 bits of a relative address, plus 1 if the contents of
2019 the low 16 bits, treated as a signed number, is negative. */
2020 HOWTO (R_PPC64_REL16_HA
, /* type */
2021 16, /* rightshift */
2022 1, /* size (0 = byte, 1 = short, 2 = long) */
2024 TRUE
, /* pc_relative */
2026 complain_overflow_signed
, /* complain_on_overflow */
2027 ppc64_elf_ha_reloc
, /* special_function */
2028 "R_PPC64_REL16_HA", /* name */
2029 FALSE
, /* partial_inplace */
2031 0xffff, /* dst_mask */
2032 TRUE
), /* pcrel_offset */
2034 /* Like R_PPC64_REL16_HA but for split field in addpcis. */
2035 HOWTO (R_PPC64_REL16DX_HA
, /* type */
2036 16, /* rightshift */
2037 2, /* size (0 = byte, 1 = short, 2 = long) */
2039 TRUE
, /* pc_relative */
2041 complain_overflow_signed
, /* complain_on_overflow */
2042 ppc64_elf_ha_reloc
, /* special_function */
2043 "R_PPC64_REL16DX_HA", /* name */
2044 FALSE
, /* partial_inplace */
2046 0x1fffc1, /* dst_mask */
2047 TRUE
), /* pcrel_offset */
2049 /* A split-field reloc for addpcis, non-relative (gas internal use only). */
2050 HOWTO (R_PPC64_16DX_HA
, /* type */
2051 16, /* rightshift */
2052 2, /* size (0 = byte, 1 = short, 2 = long) */
2054 FALSE
, /* pc_relative */
2056 complain_overflow_signed
, /* complain_on_overflow */
2057 ppc64_elf_ha_reloc
, /* special_function */
2058 "R_PPC64_16DX_HA", /* name */
2059 FALSE
, /* partial_inplace */
2061 0x1fffc1, /* dst_mask */
2062 FALSE
), /* pcrel_offset */
2064 /* Like R_PPC64_ADDR16_HI, but no overflow. */
2065 HOWTO (R_PPC64_ADDR16_HIGH
, /* type */
2066 16, /* rightshift */
2067 1, /* size (0 = byte, 1 = short, 2 = long) */
2069 FALSE
, /* pc_relative */
2071 complain_overflow_dont
, /* complain_on_overflow */
2072 bfd_elf_generic_reloc
, /* special_function */
2073 "R_PPC64_ADDR16_HIGH", /* name */
2074 FALSE
, /* partial_inplace */
2076 0xffff, /* dst_mask */
2077 FALSE
), /* pcrel_offset */
2079 /* Like R_PPC64_ADDR16_HA, but no overflow. */
2080 HOWTO (R_PPC64_ADDR16_HIGHA
, /* type */
2081 16, /* rightshift */
2082 1, /* size (0 = byte, 1 = short, 2 = long) */
2084 FALSE
, /* pc_relative */
2086 complain_overflow_dont
, /* complain_on_overflow */
2087 ppc64_elf_ha_reloc
, /* special_function */
2088 "R_PPC64_ADDR16_HIGHA", /* name */
2089 FALSE
, /* partial_inplace */
2091 0xffff, /* dst_mask */
2092 FALSE
), /* pcrel_offset */
2094 /* Like R_PPC64_DTPREL16_HI, but no overflow. */
2095 HOWTO (R_PPC64_DTPREL16_HIGH
,
2096 16, /* rightshift */
2097 1, /* size (0 = byte, 1 = short, 2 = long) */
2099 FALSE
, /* pc_relative */
2101 complain_overflow_dont
, /* complain_on_overflow */
2102 ppc64_elf_unhandled_reloc
, /* special_function */
2103 "R_PPC64_DTPREL16_HIGH", /* name */
2104 FALSE
, /* partial_inplace */
2106 0xffff, /* dst_mask */
2107 FALSE
), /* pcrel_offset */
2109 /* Like R_PPC64_DTPREL16_HA, but no overflow. */
2110 HOWTO (R_PPC64_DTPREL16_HIGHA
,
2111 16, /* rightshift */
2112 1, /* size (0 = byte, 1 = short, 2 = long) */
2114 FALSE
, /* pc_relative */
2116 complain_overflow_dont
, /* complain_on_overflow */
2117 ppc64_elf_unhandled_reloc
, /* special_function */
2118 "R_PPC64_DTPREL16_HIGHA", /* name */
2119 FALSE
, /* partial_inplace */
2121 0xffff, /* dst_mask */
2122 FALSE
), /* pcrel_offset */
2124 /* Like R_PPC64_TPREL16_HI, but no overflow. */
2125 HOWTO (R_PPC64_TPREL16_HIGH
,
2126 16, /* rightshift */
2127 1, /* size (0 = byte, 1 = short, 2 = long) */
2129 FALSE
, /* pc_relative */
2131 complain_overflow_dont
, /* complain_on_overflow */
2132 ppc64_elf_unhandled_reloc
, /* special_function */
2133 "R_PPC64_TPREL16_HIGH", /* name */
2134 FALSE
, /* partial_inplace */
2136 0xffff, /* dst_mask */
2137 FALSE
), /* pcrel_offset */
2139 /* Like R_PPC64_TPREL16_HA, but no overflow. */
2140 HOWTO (R_PPC64_TPREL16_HIGHA
,
2141 16, /* rightshift */
2142 1, /* size (0 = byte, 1 = short, 2 = long) */
2144 FALSE
, /* pc_relative */
2146 complain_overflow_dont
, /* complain_on_overflow */
2147 ppc64_elf_unhandled_reloc
, /* special_function */
2148 "R_PPC64_TPREL16_HIGHA", /* name */
2149 FALSE
, /* partial_inplace */
2151 0xffff, /* dst_mask */
2152 FALSE
), /* pcrel_offset */
2154 /* Marker reloc on ELFv2 large-model function entry. */
2155 HOWTO (R_PPC64_ENTRY
,
2157 2, /* size (0 = byte, 1 = short, 2 = long) */
2159 FALSE
, /* pc_relative */
2161 complain_overflow_dont
, /* complain_on_overflow */
2162 bfd_elf_generic_reloc
, /* special_function */
2163 "R_PPC64_ENTRY", /* name */
2164 FALSE
, /* partial_inplace */
2167 FALSE
), /* pcrel_offset */
2169 /* Like ADDR64, but use local entry point of function. */
2170 HOWTO (R_PPC64_ADDR64_LOCAL
, /* type */
2172 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
2174 FALSE
, /* pc_relative */
2176 complain_overflow_dont
, /* complain_on_overflow */
2177 bfd_elf_generic_reloc
, /* special_function */
2178 "R_PPC64_ADDR64_LOCAL", /* name */
2179 FALSE
, /* partial_inplace */
2181 ONES (64), /* dst_mask */
2182 FALSE
), /* pcrel_offset */
2184 /* GNU extension to record C++ vtable hierarchy. */
2185 HOWTO (R_PPC64_GNU_VTINHERIT
, /* type */
2187 0, /* size (0 = byte, 1 = short, 2 = long) */
2189 FALSE
, /* pc_relative */
2191 complain_overflow_dont
, /* complain_on_overflow */
2192 NULL
, /* special_function */
2193 "R_PPC64_GNU_VTINHERIT", /* name */
2194 FALSE
, /* partial_inplace */
2197 FALSE
), /* pcrel_offset */
2199 /* GNU extension to record C++ vtable member usage. */
2200 HOWTO (R_PPC64_GNU_VTENTRY
, /* type */
2202 0, /* size (0 = byte, 1 = short, 2 = long) */
2204 FALSE
, /* pc_relative */
2206 complain_overflow_dont
, /* complain_on_overflow */
2207 NULL
, /* special_function */
2208 "R_PPC64_GNU_VTENTRY", /* name */
2209 FALSE
, /* partial_inplace */
2212 FALSE
), /* pcrel_offset */
2216 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
2220 ppc_howto_init (void)
2222 unsigned int i
, type
;
2224 for (i
= 0; i
< ARRAY_SIZE (ppc64_elf_howto_raw
); i
++)
2226 type
= ppc64_elf_howto_raw
[i
].type
;
2227 BFD_ASSERT (type
< ARRAY_SIZE (ppc64_elf_howto_table
));
2228 ppc64_elf_howto_table
[type
] = &ppc64_elf_howto_raw
[i
];
2232 static reloc_howto_type
*
2233 ppc64_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2234 bfd_reloc_code_real_type code
)
2236 enum elf_ppc64_reloc_type r
= R_PPC64_NONE
;
2238 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
2239 /* Initialize howto table if needed. */
2247 case BFD_RELOC_NONE
: r
= R_PPC64_NONE
;
2249 case BFD_RELOC_32
: r
= R_PPC64_ADDR32
;
2251 case BFD_RELOC_PPC_BA26
: r
= R_PPC64_ADDR24
;
2253 case BFD_RELOC_16
: r
= R_PPC64_ADDR16
;
2255 case BFD_RELOC_LO16
: r
= R_PPC64_ADDR16_LO
;
2257 case BFD_RELOC_HI16
: r
= R_PPC64_ADDR16_HI
;
2259 case BFD_RELOC_PPC64_ADDR16_HIGH
: r
= R_PPC64_ADDR16_HIGH
;
2261 case BFD_RELOC_HI16_S
: r
= R_PPC64_ADDR16_HA
;
2263 case BFD_RELOC_PPC64_ADDR16_HIGHA
: r
= R_PPC64_ADDR16_HIGHA
;
2265 case BFD_RELOC_PPC_BA16
: r
= R_PPC64_ADDR14
;
2267 case BFD_RELOC_PPC_BA16_BRTAKEN
: r
= R_PPC64_ADDR14_BRTAKEN
;
2269 case BFD_RELOC_PPC_BA16_BRNTAKEN
: r
= R_PPC64_ADDR14_BRNTAKEN
;
2271 case BFD_RELOC_PPC_B26
: r
= R_PPC64_REL24
;
2273 case BFD_RELOC_PPC_B16
: r
= R_PPC64_REL14
;
2275 case BFD_RELOC_PPC_B16_BRTAKEN
: r
= R_PPC64_REL14_BRTAKEN
;
2277 case BFD_RELOC_PPC_B16_BRNTAKEN
: r
= R_PPC64_REL14_BRNTAKEN
;
2279 case BFD_RELOC_16_GOTOFF
: r
= R_PPC64_GOT16
;
2281 case BFD_RELOC_LO16_GOTOFF
: r
= R_PPC64_GOT16_LO
;
2283 case BFD_RELOC_HI16_GOTOFF
: r
= R_PPC64_GOT16_HI
;
2285 case BFD_RELOC_HI16_S_GOTOFF
: r
= R_PPC64_GOT16_HA
;
2287 case BFD_RELOC_PPC_COPY
: r
= R_PPC64_COPY
;
2289 case BFD_RELOC_PPC_GLOB_DAT
: r
= R_PPC64_GLOB_DAT
;
2291 case BFD_RELOC_32_PCREL
: r
= R_PPC64_REL32
;
2293 case BFD_RELOC_32_PLTOFF
: r
= R_PPC64_PLT32
;
2295 case BFD_RELOC_32_PLT_PCREL
: r
= R_PPC64_PLTREL32
;
2297 case BFD_RELOC_LO16_PLTOFF
: r
= R_PPC64_PLT16_LO
;
2299 case BFD_RELOC_HI16_PLTOFF
: r
= R_PPC64_PLT16_HI
;
2301 case BFD_RELOC_HI16_S_PLTOFF
: r
= R_PPC64_PLT16_HA
;
2303 case BFD_RELOC_16_BASEREL
: r
= R_PPC64_SECTOFF
;
2305 case BFD_RELOC_LO16_BASEREL
: r
= R_PPC64_SECTOFF_LO
;
2307 case BFD_RELOC_HI16_BASEREL
: r
= R_PPC64_SECTOFF_HI
;
2309 case BFD_RELOC_HI16_S_BASEREL
: r
= R_PPC64_SECTOFF_HA
;
2311 case BFD_RELOC_CTOR
: r
= R_PPC64_ADDR64
;
2313 case BFD_RELOC_64
: r
= R_PPC64_ADDR64
;
2315 case BFD_RELOC_PPC64_HIGHER
: r
= R_PPC64_ADDR16_HIGHER
;
2317 case BFD_RELOC_PPC64_HIGHER_S
: r
= R_PPC64_ADDR16_HIGHERA
;
2319 case BFD_RELOC_PPC64_HIGHEST
: r
= R_PPC64_ADDR16_HIGHEST
;
2321 case BFD_RELOC_PPC64_HIGHEST_S
: r
= R_PPC64_ADDR16_HIGHESTA
;
2323 case BFD_RELOC_64_PCREL
: r
= R_PPC64_REL64
;
2325 case BFD_RELOC_64_PLTOFF
: r
= R_PPC64_PLT64
;
2327 case BFD_RELOC_64_PLT_PCREL
: r
= R_PPC64_PLTREL64
;
2329 case BFD_RELOC_PPC_TOC16
: r
= R_PPC64_TOC16
;
2331 case BFD_RELOC_PPC64_TOC16_LO
: r
= R_PPC64_TOC16_LO
;
2333 case BFD_RELOC_PPC64_TOC16_HI
: r
= R_PPC64_TOC16_HI
;
2335 case BFD_RELOC_PPC64_TOC16_HA
: r
= R_PPC64_TOC16_HA
;
2337 case BFD_RELOC_PPC64_TOC
: r
= R_PPC64_TOC
;
2339 case BFD_RELOC_PPC64_PLTGOT16
: r
= R_PPC64_PLTGOT16
;
2341 case BFD_RELOC_PPC64_PLTGOT16_LO
: r
= R_PPC64_PLTGOT16_LO
;
2343 case BFD_RELOC_PPC64_PLTGOT16_HI
: r
= R_PPC64_PLTGOT16_HI
;
2345 case BFD_RELOC_PPC64_PLTGOT16_HA
: r
= R_PPC64_PLTGOT16_HA
;
2347 case BFD_RELOC_PPC64_ADDR16_DS
: r
= R_PPC64_ADDR16_DS
;
2349 case BFD_RELOC_PPC64_ADDR16_LO_DS
: r
= R_PPC64_ADDR16_LO_DS
;
2351 case BFD_RELOC_PPC64_GOT16_DS
: r
= R_PPC64_GOT16_DS
;
2353 case BFD_RELOC_PPC64_GOT16_LO_DS
: r
= R_PPC64_GOT16_LO_DS
;
2355 case BFD_RELOC_PPC64_PLT16_LO_DS
: r
= R_PPC64_PLT16_LO_DS
;
2357 case BFD_RELOC_PPC64_SECTOFF_DS
: r
= R_PPC64_SECTOFF_DS
;
2359 case BFD_RELOC_PPC64_SECTOFF_LO_DS
: r
= R_PPC64_SECTOFF_LO_DS
;
2361 case BFD_RELOC_PPC64_TOC16_DS
: r
= R_PPC64_TOC16_DS
;
2363 case BFD_RELOC_PPC64_TOC16_LO_DS
: r
= R_PPC64_TOC16_LO_DS
;
2365 case BFD_RELOC_PPC64_PLTGOT16_DS
: r
= R_PPC64_PLTGOT16_DS
;
2367 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
: r
= R_PPC64_PLTGOT16_LO_DS
;
2369 case BFD_RELOC_PPC_TLS
: r
= R_PPC64_TLS
;
2371 case BFD_RELOC_PPC_TLSGD
: r
= R_PPC64_TLSGD
;
2373 case BFD_RELOC_PPC_TLSLD
: r
= R_PPC64_TLSLD
;
2375 case BFD_RELOC_PPC_DTPMOD
: r
= R_PPC64_DTPMOD64
;
2377 case BFD_RELOC_PPC_TPREL16
: r
= R_PPC64_TPREL16
;
2379 case BFD_RELOC_PPC_TPREL16_LO
: r
= R_PPC64_TPREL16_LO
;
2381 case BFD_RELOC_PPC_TPREL16_HI
: r
= R_PPC64_TPREL16_HI
;
2383 case BFD_RELOC_PPC64_TPREL16_HIGH
: r
= R_PPC64_TPREL16_HIGH
;
2385 case BFD_RELOC_PPC_TPREL16_HA
: r
= R_PPC64_TPREL16_HA
;
2387 case BFD_RELOC_PPC64_TPREL16_HIGHA
: r
= R_PPC64_TPREL16_HIGHA
;
2389 case BFD_RELOC_PPC_TPREL
: r
= R_PPC64_TPREL64
;
2391 case BFD_RELOC_PPC_DTPREL16
: r
= R_PPC64_DTPREL16
;
2393 case BFD_RELOC_PPC_DTPREL16_LO
: r
= R_PPC64_DTPREL16_LO
;
2395 case BFD_RELOC_PPC_DTPREL16_HI
: r
= R_PPC64_DTPREL16_HI
;
2397 case BFD_RELOC_PPC64_DTPREL16_HIGH
: r
= R_PPC64_DTPREL16_HIGH
;
2399 case BFD_RELOC_PPC_DTPREL16_HA
: r
= R_PPC64_DTPREL16_HA
;
2401 case BFD_RELOC_PPC64_DTPREL16_HIGHA
: r
= R_PPC64_DTPREL16_HIGHA
;
2403 case BFD_RELOC_PPC_DTPREL
: r
= R_PPC64_DTPREL64
;
2405 case BFD_RELOC_PPC_GOT_TLSGD16
: r
= R_PPC64_GOT_TLSGD16
;
2407 case BFD_RELOC_PPC_GOT_TLSGD16_LO
: r
= R_PPC64_GOT_TLSGD16_LO
;
2409 case BFD_RELOC_PPC_GOT_TLSGD16_HI
: r
= R_PPC64_GOT_TLSGD16_HI
;
2411 case BFD_RELOC_PPC_GOT_TLSGD16_HA
: r
= R_PPC64_GOT_TLSGD16_HA
;
2413 case BFD_RELOC_PPC_GOT_TLSLD16
: r
= R_PPC64_GOT_TLSLD16
;
2415 case BFD_RELOC_PPC_GOT_TLSLD16_LO
: r
= R_PPC64_GOT_TLSLD16_LO
;
2417 case BFD_RELOC_PPC_GOT_TLSLD16_HI
: r
= R_PPC64_GOT_TLSLD16_HI
;
2419 case BFD_RELOC_PPC_GOT_TLSLD16_HA
: r
= R_PPC64_GOT_TLSLD16_HA
;
2421 case BFD_RELOC_PPC_GOT_TPREL16
: r
= R_PPC64_GOT_TPREL16_DS
;
2423 case BFD_RELOC_PPC_GOT_TPREL16_LO
: r
= R_PPC64_GOT_TPREL16_LO_DS
;
2425 case BFD_RELOC_PPC_GOT_TPREL16_HI
: r
= R_PPC64_GOT_TPREL16_HI
;
2427 case BFD_RELOC_PPC_GOT_TPREL16_HA
: r
= R_PPC64_GOT_TPREL16_HA
;
2429 case BFD_RELOC_PPC_GOT_DTPREL16
: r
= R_PPC64_GOT_DTPREL16_DS
;
2431 case BFD_RELOC_PPC_GOT_DTPREL16_LO
: r
= R_PPC64_GOT_DTPREL16_LO_DS
;
2433 case BFD_RELOC_PPC_GOT_DTPREL16_HI
: r
= R_PPC64_GOT_DTPREL16_HI
;
2435 case BFD_RELOC_PPC_GOT_DTPREL16_HA
: r
= R_PPC64_GOT_DTPREL16_HA
;
2437 case BFD_RELOC_PPC64_TPREL16_DS
: r
= R_PPC64_TPREL16_DS
;
2439 case BFD_RELOC_PPC64_TPREL16_LO_DS
: r
= R_PPC64_TPREL16_LO_DS
;
2441 case BFD_RELOC_PPC64_TPREL16_HIGHER
: r
= R_PPC64_TPREL16_HIGHER
;
2443 case BFD_RELOC_PPC64_TPREL16_HIGHERA
: r
= R_PPC64_TPREL16_HIGHERA
;
2445 case BFD_RELOC_PPC64_TPREL16_HIGHEST
: r
= R_PPC64_TPREL16_HIGHEST
;
2447 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
: r
= R_PPC64_TPREL16_HIGHESTA
;
2449 case BFD_RELOC_PPC64_DTPREL16_DS
: r
= R_PPC64_DTPREL16_DS
;
2451 case BFD_RELOC_PPC64_DTPREL16_LO_DS
: r
= R_PPC64_DTPREL16_LO_DS
;
2453 case BFD_RELOC_PPC64_DTPREL16_HIGHER
: r
= R_PPC64_DTPREL16_HIGHER
;
2455 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
: r
= R_PPC64_DTPREL16_HIGHERA
;
2457 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
: r
= R_PPC64_DTPREL16_HIGHEST
;
2459 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
: r
= R_PPC64_DTPREL16_HIGHESTA
;
2461 case BFD_RELOC_16_PCREL
: r
= R_PPC64_REL16
;
2463 case BFD_RELOC_LO16_PCREL
: r
= R_PPC64_REL16_LO
;
2465 case BFD_RELOC_HI16_PCREL
: r
= R_PPC64_REL16_HI
;
2467 case BFD_RELOC_HI16_S_PCREL
: r
= R_PPC64_REL16_HA
;
2469 case BFD_RELOC_PPC_16DX_HA
: r
= R_PPC64_16DX_HA
;
2471 case BFD_RELOC_PPC_REL16DX_HA
: r
= R_PPC64_REL16DX_HA
;
2473 case BFD_RELOC_PPC64_ENTRY
: r
= R_PPC64_ENTRY
;
2475 case BFD_RELOC_PPC64_ADDR64_LOCAL
: r
= R_PPC64_ADDR64_LOCAL
;
2477 case BFD_RELOC_VTABLE_INHERIT
: r
= R_PPC64_GNU_VTINHERIT
;
2479 case BFD_RELOC_VTABLE_ENTRY
: r
= R_PPC64_GNU_VTENTRY
;
2483 return ppc64_elf_howto_table
[r
];
2486 static reloc_howto_type
*
2487 ppc64_elf_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2492 for (i
= 0; i
< ARRAY_SIZE (ppc64_elf_howto_raw
); i
++)
2493 if (ppc64_elf_howto_raw
[i
].name
!= NULL
2494 && strcasecmp (ppc64_elf_howto_raw
[i
].name
, r_name
) == 0)
2495 return &ppc64_elf_howto_raw
[i
];
2500 /* Set the howto pointer for a PowerPC ELF reloc. */
2503 ppc64_elf_info_to_howto (bfd
*abfd
, arelent
*cache_ptr
,
2504 Elf_Internal_Rela
*dst
)
2508 /* Initialize howto table if needed. */
2509 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
2512 type
= ELF64_R_TYPE (dst
->r_info
);
2513 if (type
>= ARRAY_SIZE (ppc64_elf_howto_table
))
2515 /* xgettext:c-format */
2516 _bfd_error_handler (_("%B: invalid relocation type %d"),
2518 type
= R_PPC64_NONE
;
2520 cache_ptr
->howto
= ppc64_elf_howto_table
[type
];
2523 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2525 static bfd_reloc_status_type
2526 ppc64_elf_ha_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2527 void *data
, asection
*input_section
,
2528 bfd
*output_bfd
, char **error_message
)
2530 enum elf_ppc64_reloc_type r_type
;
2532 bfd_size_type octets
;
2535 /* If this is a relocatable link (output_bfd test tells us), just
2536 call the generic function. Any adjustment will be done at final
2538 if (output_bfd
!= NULL
)
2539 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2540 input_section
, output_bfd
, error_message
);
2542 /* Adjust the addend for sign extension of the low 16 bits.
2543 We won't actually be using the low 16 bits, so trashing them
2545 reloc_entry
->addend
+= 0x8000;
2546 r_type
= reloc_entry
->howto
->type
;
2547 if (r_type
!= R_PPC64_REL16DX_HA
)
2548 return bfd_reloc_continue
;
2551 if (!bfd_is_com_section (symbol
->section
))
2552 value
= symbol
->value
;
2553 value
+= (reloc_entry
->addend
2554 + symbol
->section
->output_offset
2555 + symbol
->section
->output_section
->vma
);
2556 value
-= (reloc_entry
->address
2557 + input_section
->output_offset
2558 + input_section
->output_section
->vma
);
2559 value
= (bfd_signed_vma
) value
>> 16;
2561 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2562 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ octets
);
2564 insn
|= (value
& 0xffc1) | ((value
& 0x3e) << 15);
2565 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ octets
);
2566 if (value
+ 0x8000 > 0xffff)
2567 return bfd_reloc_overflow
;
2568 return bfd_reloc_ok
;
2571 static bfd_reloc_status_type
2572 ppc64_elf_branch_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2573 void *data
, asection
*input_section
,
2574 bfd
*output_bfd
, char **error_message
)
2576 if (output_bfd
!= NULL
)
2577 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2578 input_section
, output_bfd
, error_message
);
2580 if (strcmp (symbol
->section
->name
, ".opd") == 0
2581 && (symbol
->section
->owner
->flags
& DYNAMIC
) == 0)
2583 bfd_vma dest
= opd_entry_value (symbol
->section
,
2584 symbol
->value
+ reloc_entry
->addend
,
2586 if (dest
!= (bfd_vma
) -1)
2587 reloc_entry
->addend
= dest
- (symbol
->value
2588 + symbol
->section
->output_section
->vma
2589 + symbol
->section
->output_offset
);
2593 elf_symbol_type
*elfsym
= (elf_symbol_type
*) symbol
;
2595 if (symbol
->section
->owner
!= abfd
2596 && symbol
->section
->owner
!= NULL
2597 && abiversion (symbol
->section
->owner
) >= 2)
2601 for (i
= 0; i
< symbol
->section
->owner
->symcount
; ++i
)
2603 asymbol
*symdef
= symbol
->section
->owner
->outsymbols
[i
];
2605 if (strcmp (symdef
->name
, symbol
->name
) == 0)
2607 elfsym
= (elf_symbol_type
*) symdef
;
2613 += PPC64_LOCAL_ENTRY_OFFSET (elfsym
->internal_elf_sym
.st_other
);
2615 return bfd_reloc_continue
;
2618 static bfd_reloc_status_type
2619 ppc64_elf_brtaken_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2620 void *data
, asection
*input_section
,
2621 bfd
*output_bfd
, char **error_message
)
2624 enum elf_ppc64_reloc_type r_type
;
2625 bfd_size_type octets
;
2626 /* Assume 'at' branch hints. */
2627 bfd_boolean is_isa_v2
= TRUE
;
2629 /* If this is a relocatable link (output_bfd test tells us), just
2630 call the generic function. Any adjustment will be done at final
2632 if (output_bfd
!= NULL
)
2633 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2634 input_section
, output_bfd
, error_message
);
2636 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2637 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ octets
);
2638 insn
&= ~(0x01 << 21);
2639 r_type
= reloc_entry
->howto
->type
;
2640 if (r_type
== R_PPC64_ADDR14_BRTAKEN
2641 || r_type
== R_PPC64_REL14_BRTAKEN
)
2642 insn
|= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2646 /* Set 'a' bit. This is 0b00010 in BO field for branch
2647 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2648 for branch on CTR insns (BO == 1a00t or 1a01t). */
2649 if ((insn
& (0x14 << 21)) == (0x04 << 21))
2651 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
2661 if (!bfd_is_com_section (symbol
->section
))
2662 target
= symbol
->value
;
2663 target
+= symbol
->section
->output_section
->vma
;
2664 target
+= symbol
->section
->output_offset
;
2665 target
+= reloc_entry
->addend
;
2667 from
= (reloc_entry
->address
2668 + input_section
->output_offset
2669 + input_section
->output_section
->vma
);
2671 /* Invert 'y' bit if not the default. */
2672 if ((bfd_signed_vma
) (target
- from
) < 0)
2675 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ octets
);
2677 return ppc64_elf_branch_reloc (abfd
, reloc_entry
, symbol
, data
,
2678 input_section
, output_bfd
, error_message
);
2681 static bfd_reloc_status_type
2682 ppc64_elf_sectoff_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2683 void *data
, asection
*input_section
,
2684 bfd
*output_bfd
, char **error_message
)
2686 /* If this is a relocatable link (output_bfd test tells us), just
2687 call the generic function. Any adjustment will be done at final
2689 if (output_bfd
!= NULL
)
2690 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2691 input_section
, output_bfd
, error_message
);
2693 /* Subtract the symbol section base address. */
2694 reloc_entry
->addend
-= symbol
->section
->output_section
->vma
;
2695 return bfd_reloc_continue
;
2698 static bfd_reloc_status_type
2699 ppc64_elf_sectoff_ha_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2700 void *data
, asection
*input_section
,
2701 bfd
*output_bfd
, char **error_message
)
2703 /* If this is a relocatable link (output_bfd test tells us), just
2704 call the generic function. Any adjustment will be done at final
2706 if (output_bfd
!= NULL
)
2707 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2708 input_section
, output_bfd
, error_message
);
2710 /* Subtract the symbol section base address. */
2711 reloc_entry
->addend
-= symbol
->section
->output_section
->vma
;
2713 /* Adjust the addend for sign extension of the low 16 bits. */
2714 reloc_entry
->addend
+= 0x8000;
2715 return bfd_reloc_continue
;
2718 static bfd_reloc_status_type
2719 ppc64_elf_toc_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2720 void *data
, asection
*input_section
,
2721 bfd
*output_bfd
, char **error_message
)
2725 /* If this is a relocatable link (output_bfd test tells us), just
2726 call the generic function. Any adjustment will be done at final
2728 if (output_bfd
!= NULL
)
2729 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2730 input_section
, output_bfd
, error_message
);
2732 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2734 TOCstart
= ppc64_elf_set_toc (NULL
, input_section
->output_section
->owner
);
2736 /* Subtract the TOC base address. */
2737 reloc_entry
->addend
-= TOCstart
+ TOC_BASE_OFF
;
2738 return bfd_reloc_continue
;
2741 static bfd_reloc_status_type
2742 ppc64_elf_toc_ha_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2743 void *data
, asection
*input_section
,
2744 bfd
*output_bfd
, char **error_message
)
2748 /* If this is a relocatable link (output_bfd test tells us), just
2749 call the generic function. Any adjustment will be done at final
2751 if (output_bfd
!= NULL
)
2752 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2753 input_section
, output_bfd
, error_message
);
2755 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2757 TOCstart
= ppc64_elf_set_toc (NULL
, input_section
->output_section
->owner
);
2759 /* Subtract the TOC base address. */
2760 reloc_entry
->addend
-= TOCstart
+ TOC_BASE_OFF
;
2762 /* Adjust the addend for sign extension of the low 16 bits. */
2763 reloc_entry
->addend
+= 0x8000;
2764 return bfd_reloc_continue
;
2767 static bfd_reloc_status_type
2768 ppc64_elf_toc64_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2769 void *data
, asection
*input_section
,
2770 bfd
*output_bfd
, char **error_message
)
2773 bfd_size_type octets
;
2775 /* If this is a relocatable link (output_bfd test tells us), just
2776 call the generic function. Any adjustment will be done at final
2778 if (output_bfd
!= NULL
)
2779 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2780 input_section
, output_bfd
, error_message
);
2782 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2784 TOCstart
= ppc64_elf_set_toc (NULL
, input_section
->output_section
->owner
);
2786 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2787 bfd_put_64 (abfd
, TOCstart
+ TOC_BASE_OFF
, (bfd_byte
*) data
+ octets
);
2788 return bfd_reloc_ok
;
2791 static bfd_reloc_status_type
2792 ppc64_elf_unhandled_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2793 void *data
, asection
*input_section
,
2794 bfd
*output_bfd
, char **error_message
)
2796 /* If this is a relocatable link (output_bfd test tells us), just
2797 call the generic function. Any adjustment will be done at final
2799 if (output_bfd
!= NULL
)
2800 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2801 input_section
, output_bfd
, error_message
);
2803 if (error_message
!= NULL
)
2805 static char buf
[60];
2806 sprintf (buf
, "generic linker can't handle %s",
2807 reloc_entry
->howto
->name
);
2808 *error_message
= buf
;
2810 return bfd_reloc_dangerous
;
2813 /* Track GOT entries needed for a given symbol. We might need more
2814 than one got entry per symbol. */
2817 struct got_entry
*next
;
2819 /* The symbol addend that we'll be placing in the GOT. */
2822 /* Unlike other ELF targets, we use separate GOT entries for the same
2823 symbol referenced from different input files. This is to support
2824 automatic multiple TOC/GOT sections, where the TOC base can vary
2825 from one input file to another. After partitioning into TOC groups
2826 we merge entries within the group.
2828 Point to the BFD owning this GOT entry. */
2831 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2832 TLS_TPREL or TLS_DTPREL for tls entries. */
2833 unsigned char tls_type
;
2835 /* Non-zero if got.ent points to real entry. */
2836 unsigned char is_indirect
;
2838 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2841 bfd_signed_vma refcount
;
2843 struct got_entry
*ent
;
2847 /* The same for PLT. */
2850 struct plt_entry
*next
;
2856 bfd_signed_vma refcount
;
2861 struct ppc64_elf_obj_tdata
2863 struct elf_obj_tdata elf
;
2865 /* Shortcuts to dynamic linker sections. */
2869 /* Used during garbage collection. We attach global symbols defined
2870 on removed .opd entries to this section so that the sym is removed. */
2871 asection
*deleted_section
;
2873 /* TLS local dynamic got entry handling. Support for multiple GOT
2874 sections means we potentially need one of these for each input bfd. */
2875 struct got_entry tlsld_got
;
2878 /* A copy of relocs before they are modified for --emit-relocs. */
2879 Elf_Internal_Rela
*relocs
;
2881 /* Section contents. */
2885 /* Nonzero if this bfd has small toc/got relocs, ie. that expect
2886 the reloc to be in the range -32768 to 32767. */
2887 unsigned int has_small_toc_reloc
: 1;
2889 /* Set if toc/got ha relocs detected not using r2, or lo reloc
2890 instruction not one we handle. */
2891 unsigned int unexpected_toc_insn
: 1;
2894 #define ppc64_elf_tdata(bfd) \
2895 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2897 #define ppc64_tlsld_got(bfd) \
2898 (&ppc64_elf_tdata (bfd)->tlsld_got)
2900 #define is_ppc64_elf(bfd) \
2901 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2902 && elf_object_id (bfd) == PPC64_ELF_DATA)
2904 /* Override the generic function because we store some extras. */
2907 ppc64_elf_mkobject (bfd
*abfd
)
2909 return bfd_elf_allocate_object (abfd
, sizeof (struct ppc64_elf_obj_tdata
),
2913 /* Fix bad default arch selected for a 64 bit input bfd when the
2914 default is 32 bit. Also select arch based on apuinfo. */
2917 ppc64_elf_object_p (bfd
*abfd
)
2919 if (!abfd
->arch_info
->the_default
)
2922 if (abfd
->arch_info
->bits_per_word
== 32)
2924 Elf_Internal_Ehdr
*i_ehdr
= elf_elfheader (abfd
);
2926 if (i_ehdr
->e_ident
[EI_CLASS
] == ELFCLASS64
)
2928 /* Relies on arch after 32 bit default being 64 bit default. */
2929 abfd
->arch_info
= abfd
->arch_info
->next
;
2930 BFD_ASSERT (abfd
->arch_info
->bits_per_word
== 64);
2933 return _bfd_elf_ppc_set_arch (abfd
);
2936 /* Support for core dump NOTE sections. */
2939 ppc64_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
2941 size_t offset
, size
;
2943 if (note
->descsz
!= 504)
2947 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
2950 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 32);
2956 /* Make a ".reg/999" section. */
2957 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
2958 size
, note
->descpos
+ offset
);
2962 ppc64_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
2964 if (note
->descsz
!= 136)
2967 elf_tdata (abfd
)->core
->pid
2968 = bfd_get_32 (abfd
, note
->descdata
+ 24);
2969 elf_tdata (abfd
)->core
->program
2970 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 40, 16);
2971 elf_tdata (abfd
)->core
->command
2972 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 56, 80);
2978 ppc64_elf_write_core_note (bfd
*abfd
, char *buf
, int *bufsiz
, int note_type
,
2991 va_start (ap
, note_type
);
2992 memset (data
, 0, sizeof (data
));
2993 strncpy (data
+ 40, va_arg (ap
, const char *), 16);
2994 strncpy (data
+ 56, va_arg (ap
, const char *), 80);
2996 return elfcore_write_note (abfd
, buf
, bufsiz
,
2997 "CORE", note_type
, data
, sizeof (data
));
3008 va_start (ap
, note_type
);
3009 memset (data
, 0, 112);
3010 pid
= va_arg (ap
, long);
3011 bfd_put_32 (abfd
, pid
, data
+ 32);
3012 cursig
= va_arg (ap
, int);
3013 bfd_put_16 (abfd
, cursig
, data
+ 12);
3014 greg
= va_arg (ap
, const void *);
3015 memcpy (data
+ 112, greg
, 384);
3016 memset (data
+ 496, 0, 8);
3018 return elfcore_write_note (abfd
, buf
, bufsiz
,
3019 "CORE", note_type
, data
, sizeof (data
));
3024 /* Add extra PPC sections. */
3026 static const struct bfd_elf_special_section ppc64_elf_special_sections
[]=
3028 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS
, 0 },
3029 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
3030 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
3031 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
3032 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
3033 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
3034 { NULL
, 0, 0, 0, 0 }
3037 enum _ppc64_sec_type
{
3043 struct _ppc64_elf_section_data
3045 struct bfd_elf_section_data elf
;
3049 /* An array with one entry for each opd function descriptor,
3050 and some spares since opd entries may be either 16 or 24 bytes. */
3051 #define OPD_NDX(OFF) ((OFF) >> 4)
3052 struct _opd_sec_data
3054 /* Points to the function code section for local opd entries. */
3055 asection
**func_sec
;
3057 /* After editing .opd, adjust references to opd local syms. */
3061 /* An array for toc sections, indexed by offset/8. */
3062 struct _toc_sec_data
3064 /* Specifies the relocation symbol index used at a given toc offset. */
3067 /* And the relocation addend. */
3072 enum _ppc64_sec_type sec_type
:2;
3074 /* Flag set when small branches are detected. Used to
3075 select suitable defaults for the stub group size. */
3076 unsigned int has_14bit_branch
:1;
3079 #define ppc64_elf_section_data(sec) \
3080 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
3083 ppc64_elf_new_section_hook (bfd
*abfd
, asection
*sec
)
3085 if (!sec
->used_by_bfd
)
3087 struct _ppc64_elf_section_data
*sdata
;
3088 bfd_size_type amt
= sizeof (*sdata
);
3090 sdata
= bfd_zalloc (abfd
, amt
);
3093 sec
->used_by_bfd
= sdata
;
3096 return _bfd_elf_new_section_hook (abfd
, sec
);
3099 static struct _opd_sec_data
*
3100 get_opd_info (asection
* sec
)
3103 && ppc64_elf_section_data (sec
) != NULL
3104 && ppc64_elf_section_data (sec
)->sec_type
== sec_opd
)
3105 return &ppc64_elf_section_data (sec
)->u
.opd
;
3109 /* Parameters for the qsort hook. */
3110 static bfd_boolean synthetic_relocatable
;
3111 static asection
*synthetic_opd
;
3113 /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
3116 compare_symbols (const void *ap
, const void *bp
)
3118 const asymbol
*a
= * (const asymbol
**) ap
;
3119 const asymbol
*b
= * (const asymbol
**) bp
;
3121 /* Section symbols first. */
3122 if ((a
->flags
& BSF_SECTION_SYM
) && !(b
->flags
& BSF_SECTION_SYM
))
3124 if (!(a
->flags
& BSF_SECTION_SYM
) && (b
->flags
& BSF_SECTION_SYM
))
3127 /* then .opd symbols. */
3128 if (synthetic_opd
!= NULL
)
3130 if (strcmp (a
->section
->name
, ".opd") == 0
3131 && strcmp (b
->section
->name
, ".opd") != 0)
3133 if (strcmp (a
->section
->name
, ".opd") != 0
3134 && strcmp (b
->section
->name
, ".opd") == 0)
3138 /* then other code symbols. */
3139 if ((a
->section
->flags
& (SEC_CODE
| SEC_ALLOC
| SEC_THREAD_LOCAL
))
3140 == (SEC_CODE
| SEC_ALLOC
)
3141 && (b
->section
->flags
& (SEC_CODE
| SEC_ALLOC
| SEC_THREAD_LOCAL
))
3142 != (SEC_CODE
| SEC_ALLOC
))
3145 if ((a
->section
->flags
& (SEC_CODE
| SEC_ALLOC
| SEC_THREAD_LOCAL
))
3146 != (SEC_CODE
| SEC_ALLOC
)
3147 && (b
->section
->flags
& (SEC_CODE
| SEC_ALLOC
| SEC_THREAD_LOCAL
))
3148 == (SEC_CODE
| SEC_ALLOC
))
3151 if (synthetic_relocatable
)
3153 if (a
->section
->id
< b
->section
->id
)
3156 if (a
->section
->id
> b
->section
->id
)
3160 if (a
->value
+ a
->section
->vma
< b
->value
+ b
->section
->vma
)
3163 if (a
->value
+ a
->section
->vma
> b
->value
+ b
->section
->vma
)
3166 /* For syms with the same value, prefer strong dynamic global function
3167 syms over other syms. */
3168 if ((a
->flags
& BSF_GLOBAL
) != 0 && (b
->flags
& BSF_GLOBAL
) == 0)
3171 if ((a
->flags
& BSF_GLOBAL
) == 0 && (b
->flags
& BSF_GLOBAL
) != 0)
3174 if ((a
->flags
& BSF_FUNCTION
) != 0 && (b
->flags
& BSF_FUNCTION
) == 0)
3177 if ((a
->flags
& BSF_FUNCTION
) == 0 && (b
->flags
& BSF_FUNCTION
) != 0)
3180 if ((a
->flags
& BSF_WEAK
) == 0 && (b
->flags
& BSF_WEAK
) != 0)
3183 if ((a
->flags
& BSF_WEAK
) != 0 && (b
->flags
& BSF_WEAK
) == 0)
3186 if ((a
->flags
& BSF_DYNAMIC
) != 0 && (b
->flags
& BSF_DYNAMIC
) == 0)
3189 if ((a
->flags
& BSF_DYNAMIC
) == 0 && (b
->flags
& BSF_DYNAMIC
) != 0)
3195 /* Search SYMS for a symbol of the given VALUE. */
3198 sym_exists_at (asymbol
**syms
, long lo
, long hi
, unsigned int id
, bfd_vma value
)
3202 if (id
== (unsigned) -1)
3206 mid
= (lo
+ hi
) >> 1;
3207 if (syms
[mid
]->value
+ syms
[mid
]->section
->vma
< value
)
3209 else if (syms
[mid
]->value
+ syms
[mid
]->section
->vma
> value
)
3219 mid
= (lo
+ hi
) >> 1;
3220 if (syms
[mid
]->section
->id
< id
)
3222 else if (syms
[mid
]->section
->id
> id
)
3224 else if (syms
[mid
]->value
< value
)
3226 else if (syms
[mid
]->value
> value
)
3236 section_covers_vma (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*section
, void *ptr
)
3238 bfd_vma vma
= *(bfd_vma
*) ptr
;
3239 return ((section
->flags
& SEC_ALLOC
) != 0
3240 && section
->vma
<= vma
3241 && vma
< section
->vma
+ section
->size
);
3244 /* Create synthetic symbols, effectively restoring "dot-symbol" function
3245 entry syms. Also generate @plt symbols for the glink branch table.
3246 Returns count of synthetic symbols in RET or -1 on error. */
3249 ppc64_elf_get_synthetic_symtab (bfd
*abfd
,
3250 long static_count
, asymbol
**static_syms
,
3251 long dyn_count
, asymbol
**dyn_syms
,
3258 long symcount
, codesecsym
, codesecsymend
, secsymend
, opdsymend
;
3259 asection
*opd
= NULL
;
3260 bfd_boolean relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
3262 int abi
= abiversion (abfd
);
3268 opd
= bfd_get_section_by_name (abfd
, ".opd");
3269 if (opd
== NULL
&& abi
== 1)
3281 symcount
= static_count
;
3283 symcount
+= dyn_count
;
3287 syms
= bfd_malloc ((symcount
+ 1) * sizeof (*syms
));
3291 if (!relocatable
&& static_count
!= 0 && dyn_count
!= 0)
3293 /* Use both symbol tables. */
3294 memcpy (syms
, static_syms
, static_count
* sizeof (*syms
));
3295 memcpy (syms
+ static_count
, dyn_syms
,
3296 (dyn_count
+ 1) * sizeof (*syms
));
3298 else if (!relocatable
&& static_count
== 0)
3299 memcpy (syms
, dyn_syms
, (symcount
+ 1) * sizeof (*syms
));
3301 memcpy (syms
, static_syms
, (symcount
+ 1) * sizeof (*syms
));
3303 synthetic_relocatable
= relocatable
;
3304 synthetic_opd
= opd
;
3305 qsort (syms
, symcount
, sizeof (*syms
), compare_symbols
);
3307 if (!relocatable
&& symcount
> 1)
3310 /* Trim duplicate syms, since we may have merged the normal and
3311 dynamic symbols. Actually, we only care about syms that have
3312 different values, so trim any with the same value. */
3313 for (i
= 1, j
= 1; i
< symcount
; ++i
)
3314 if (syms
[i
- 1]->value
+ syms
[i
- 1]->section
->vma
3315 != syms
[i
]->value
+ syms
[i
]->section
->vma
)
3316 syms
[j
++] = syms
[i
];
3321 /* Note that here and in compare_symbols we can't compare opd and
3322 sym->section directly. With separate debug info files, the
3323 symbols will be extracted from the debug file while abfd passed
3324 to this function is the real binary. */
3325 if (opd
!= NULL
&& strcmp (syms
[i
]->section
->name
, ".opd") == 0)
3329 for (; i
< symcount
; ++i
)
3330 if (((syms
[i
]->section
->flags
& (SEC_CODE
| SEC_ALLOC
3331 | SEC_THREAD_LOCAL
))
3332 != (SEC_CODE
| SEC_ALLOC
))
3333 || (syms
[i
]->flags
& BSF_SECTION_SYM
) == 0)
3337 for (; i
< symcount
; ++i
)
3338 if ((syms
[i
]->flags
& BSF_SECTION_SYM
) == 0)
3342 for (; i
< symcount
; ++i
)
3343 if (strcmp (syms
[i
]->section
->name
, ".opd") != 0)
3347 for (; i
< symcount
; ++i
)
3348 if ((syms
[i
]->section
->flags
& (SEC_CODE
| SEC_ALLOC
| SEC_THREAD_LOCAL
))
3349 != (SEC_CODE
| SEC_ALLOC
))
3357 bfd_boolean (*slurp_relocs
) (bfd
*, asection
*, asymbol
**, bfd_boolean
);
3362 if (opdsymend
== secsymend
)
3365 slurp_relocs
= get_elf_backend_data (abfd
)->s
->slurp_reloc_table
;
3366 relcount
= (opd
->flags
& SEC_RELOC
) ? opd
->reloc_count
: 0;
3370 if (!(*slurp_relocs
) (abfd
, opd
, static_syms
, FALSE
))
3377 for (i
= secsymend
, r
= opd
->relocation
; i
< opdsymend
; ++i
)
3381 while (r
< opd
->relocation
+ relcount
3382 && r
->address
< syms
[i
]->value
+ opd
->vma
)
3385 if (r
== opd
->relocation
+ relcount
)
3388 if (r
->address
!= syms
[i
]->value
+ opd
->vma
)
3391 if (r
->howto
->type
!= R_PPC64_ADDR64
)
3394 sym
= *r
->sym_ptr_ptr
;
3395 if (!sym_exists_at (syms
, opdsymend
, symcount
,
3396 sym
->section
->id
, sym
->value
+ r
->addend
))
3399 size
+= sizeof (asymbol
);
3400 size
+= strlen (syms
[i
]->name
) + 2;
3406 s
= *ret
= bfd_malloc (size
);
3413 names
= (char *) (s
+ count
);
3415 for (i
= secsymend
, r
= opd
->relocation
; i
< opdsymend
; ++i
)
3419 while (r
< opd
->relocation
+ relcount
3420 && r
->address
< syms
[i
]->value
+ opd
->vma
)
3423 if (r
== opd
->relocation
+ relcount
)
3426 if (r
->address
!= syms
[i
]->value
+ opd
->vma
)
3429 if (r
->howto
->type
!= R_PPC64_ADDR64
)
3432 sym
= *r
->sym_ptr_ptr
;
3433 if (!sym_exists_at (syms
, opdsymend
, symcount
,
3434 sym
->section
->id
, sym
->value
+ r
->addend
))
3439 s
->flags
|= BSF_SYNTHETIC
;
3440 s
->section
= sym
->section
;
3441 s
->value
= sym
->value
+ r
->addend
;
3444 len
= strlen (syms
[i
]->name
);
3445 memcpy (names
, syms
[i
]->name
, len
+ 1);
3447 /* Have udata.p point back to the original symbol this
3448 synthetic symbol was derived from. */
3449 s
->udata
.p
= syms
[i
];
3456 bfd_boolean (*slurp_relocs
) (bfd
*, asection
*, asymbol
**, bfd_boolean
);
3457 bfd_byte
*contents
= NULL
;
3460 bfd_vma glink_vma
= 0, resolv_vma
= 0;
3461 asection
*dynamic
, *glink
= NULL
, *relplt
= NULL
;
3464 if (opd
!= NULL
&& !bfd_malloc_and_get_section (abfd
, opd
, &contents
))
3466 free_contents_and_exit_err
:
3468 free_contents_and_exit
:
3475 for (i
= secsymend
; i
< opdsymend
; ++i
)
3479 /* Ignore bogus symbols. */
3480 if (syms
[i
]->value
> opd
->size
- 8)
3483 ent
= bfd_get_64 (abfd
, contents
+ syms
[i
]->value
);
3484 if (!sym_exists_at (syms
, opdsymend
, symcount
, -1, ent
))
3487 size
+= sizeof (asymbol
);
3488 size
+= strlen (syms
[i
]->name
) + 2;
3492 /* Get start of .glink stubs from DT_PPC64_GLINK. */
3494 && (dynamic
= bfd_get_section_by_name (abfd
, ".dynamic")) != NULL
)
3496 bfd_byte
*dynbuf
, *extdyn
, *extdynend
;
3498 void (*swap_dyn_in
) (bfd
*, const void *, Elf_Internal_Dyn
*);
3500 if (!bfd_malloc_and_get_section (abfd
, dynamic
, &dynbuf
))
3501 goto free_contents_and_exit_err
;
3503 extdynsize
= get_elf_backend_data (abfd
)->s
->sizeof_dyn
;
3504 swap_dyn_in
= get_elf_backend_data (abfd
)->s
->swap_dyn_in
;
3507 extdynend
= extdyn
+ dynamic
->size
;
3508 for (; extdyn
< extdynend
; extdyn
+= extdynsize
)
3510 Elf_Internal_Dyn dyn
;
3511 (*swap_dyn_in
) (abfd
, extdyn
, &dyn
);
3513 if (dyn
.d_tag
== DT_NULL
)
3516 if (dyn
.d_tag
== DT_PPC64_GLINK
)
3518 /* The first glink stub starts at offset 32; see
3519 comment in ppc64_elf_finish_dynamic_sections. */
3520 glink_vma
= dyn
.d_un
.d_val
+ GLINK_CALL_STUB_SIZE
- 8 * 4;
3521 /* The .glink section usually does not survive the final
3522 link; search for the section (usually .text) where the
3523 glink stubs now reside. */
3524 glink
= bfd_sections_find_if (abfd
, section_covers_vma
,
3535 /* Determine __glink trampoline by reading the relative branch
3536 from the first glink stub. */
3538 unsigned int off
= 0;
3540 while (bfd_get_section_contents (abfd
, glink
, buf
,
3541 glink_vma
+ off
- glink
->vma
, 4))
3543 unsigned int insn
= bfd_get_32 (abfd
, buf
);
3545 if ((insn
& ~0x3fffffc) == 0)
3547 resolv_vma
= glink_vma
+ off
+ (insn
^ 0x2000000) - 0x2000000;
3556 size
+= sizeof (asymbol
) + sizeof ("__glink_PLTresolve");
3558 relplt
= bfd_get_section_by_name (abfd
, ".rela.plt");
3561 slurp_relocs
= get_elf_backend_data (abfd
)->s
->slurp_reloc_table
;
3562 if (! (*slurp_relocs
) (abfd
, relplt
, dyn_syms
, TRUE
))
3563 goto free_contents_and_exit_err
;
3565 plt_count
= relplt
->size
/ sizeof (Elf64_External_Rela
);
3566 size
+= plt_count
* sizeof (asymbol
);
3568 p
= relplt
->relocation
;
3569 for (i
= 0; i
< plt_count
; i
++, p
++)
3571 size
+= strlen ((*p
->sym_ptr_ptr
)->name
) + sizeof ("@plt");
3573 size
+= sizeof ("+0x") - 1 + 16;
3579 goto free_contents_and_exit
;
3580 s
= *ret
= bfd_malloc (size
);
3582 goto free_contents_and_exit_err
;
3584 names
= (char *) (s
+ count
+ plt_count
+ (resolv_vma
!= 0));
3586 for (i
= secsymend
; i
< opdsymend
; ++i
)
3590 if (syms
[i
]->value
> opd
->size
- 8)
3593 ent
= bfd_get_64 (abfd
, contents
+ syms
[i
]->value
);
3594 if (!sym_exists_at (syms
, opdsymend
, symcount
, -1, ent
))
3598 asection
*sec
= abfd
->sections
;
3605 long mid
= (lo
+ hi
) >> 1;
3606 if (syms
[mid
]->section
->vma
< ent
)
3608 else if (syms
[mid
]->section
->vma
> ent
)
3612 sec
= syms
[mid
]->section
;
3617 if (lo
>= hi
&& lo
> codesecsym
)
3618 sec
= syms
[lo
- 1]->section
;
3620 for (; sec
!= NULL
; sec
= sec
->next
)
3624 /* SEC_LOAD may not be set if SEC is from a separate debug
3626 if ((sec
->flags
& SEC_ALLOC
) == 0)
3628 if ((sec
->flags
& SEC_CODE
) != 0)
3631 s
->flags
|= BSF_SYNTHETIC
;
3632 s
->value
= ent
- s
->section
->vma
;
3635 len
= strlen (syms
[i
]->name
);
3636 memcpy (names
, syms
[i
]->name
, len
+ 1);
3638 /* Have udata.p point back to the original symbol this
3639 synthetic symbol was derived from. */
3640 s
->udata
.p
= syms
[i
];
3646 if (glink
!= NULL
&& relplt
!= NULL
)
3650 /* Add a symbol for the main glink trampoline. */
3651 memset (s
, 0, sizeof *s
);
3653 s
->flags
= BSF_GLOBAL
| BSF_SYNTHETIC
;
3655 s
->value
= resolv_vma
- glink
->vma
;
3657 memcpy (names
, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3658 names
+= sizeof ("__glink_PLTresolve");
3663 /* FIXME: It would be very much nicer to put sym@plt on the
3664 stub rather than on the glink branch table entry. The
3665 objdump disassembler would then use a sensible symbol
3666 name on plt calls. The difficulty in doing so is
3667 a) finding the stubs, and,
3668 b) matching stubs against plt entries, and,
3669 c) there can be multiple stubs for a given plt entry.
3671 Solving (a) could be done by code scanning, but older
3672 ppc64 binaries used different stubs to current code.
3673 (b) is the tricky one since you need to known the toc
3674 pointer for at least one function that uses a pic stub to
3675 be able to calculate the plt address referenced.
3676 (c) means gdb would need to set multiple breakpoints (or
3677 find the glink branch itself) when setting breakpoints
3678 for pending shared library loads. */
3679 p
= relplt
->relocation
;
3680 for (i
= 0; i
< plt_count
; i
++, p
++)
3684 *s
= **p
->sym_ptr_ptr
;
3685 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3686 we are defining a symbol, ensure one of them is set. */
3687 if ((s
->flags
& BSF_LOCAL
) == 0)
3688 s
->flags
|= BSF_GLOBAL
;
3689 s
->flags
|= BSF_SYNTHETIC
;
3691 s
->value
= glink_vma
- glink
->vma
;
3694 len
= strlen ((*p
->sym_ptr_ptr
)->name
);
3695 memcpy (names
, (*p
->sym_ptr_ptr
)->name
, len
);
3699 memcpy (names
, "+0x", sizeof ("+0x") - 1);
3700 names
+= sizeof ("+0x") - 1;
3701 bfd_sprintf_vma (abfd
, names
, p
->addend
);
3702 names
+= strlen (names
);
3704 memcpy (names
, "@plt", sizeof ("@plt"));
3705 names
+= sizeof ("@plt");
3725 /* The following functions are specific to the ELF linker, while
3726 functions above are used generally. Those named ppc64_elf_* are
3727 called by the main ELF linker code. They appear in this file more
3728 or less in the order in which they are called. eg.
3729 ppc64_elf_check_relocs is called early in the link process,
3730 ppc64_elf_finish_dynamic_sections is one of the last functions
3733 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3734 functions have both a function code symbol and a function descriptor
3735 symbol. A call to foo in a relocatable object file looks like:
3742 The function definition in another object file might be:
3746 . .quad .TOC.@tocbase
3752 When the linker resolves the call during a static link, the branch
3753 unsurprisingly just goes to .foo and the .opd information is unused.
3754 If the function definition is in a shared library, things are a little
3755 different: The call goes via a plt call stub, the opd information gets
3756 copied to the plt, and the linker patches the nop.
3764 . std 2,40(1) # in practice, the call stub
3765 . addis 11,2,Lfoo@toc@ha # is slightly optimized, but
3766 . addi 11,11,Lfoo@toc@l # this is the general idea
3774 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3776 The "reloc ()" notation is supposed to indicate that the linker emits
3777 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3780 What are the difficulties here? Well, firstly, the relocations
3781 examined by the linker in check_relocs are against the function code
3782 sym .foo, while the dynamic relocation in the plt is emitted against
3783 the function descriptor symbol, foo. Somewhere along the line, we need
3784 to carefully copy dynamic link information from one symbol to the other.
3785 Secondly, the generic part of the elf linker will make .foo a dynamic
3786 symbol as is normal for most other backends. We need foo dynamic
3787 instead, at least for an application final link. However, when
3788 creating a shared library containing foo, we need to have both symbols
3789 dynamic so that references to .foo are satisfied during the early
3790 stages of linking. Otherwise the linker might decide to pull in a
3791 definition from some other object, eg. a static library.
3793 Update: As of August 2004, we support a new convention. Function
3794 calls may use the function descriptor symbol, ie. "bl foo". This
3795 behaves exactly as "bl .foo". */
3797 /* Of those relocs that might be copied as dynamic relocs, this
3798 function selects those that must be copied when linking a shared
3799 library or PIE, even when the symbol is local. */
3802 must_be_dyn_reloc (struct bfd_link_info
*info
,
3803 enum elf_ppc64_reloc_type r_type
)
3808 /* Only relative relocs can be resolved when the object load
3809 address isn't fixed. DTPREL64 is excluded because the
3810 dynamic linker needs to differentiate global dynamic from
3811 local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */
3819 case R_PPC64_TPREL16
:
3820 case R_PPC64_TPREL16_LO
:
3821 case R_PPC64_TPREL16_HI
:
3822 case R_PPC64_TPREL16_HA
:
3823 case R_PPC64_TPREL16_DS
:
3824 case R_PPC64_TPREL16_LO_DS
:
3825 case R_PPC64_TPREL16_HIGH
:
3826 case R_PPC64_TPREL16_HIGHA
:
3827 case R_PPC64_TPREL16_HIGHER
:
3828 case R_PPC64_TPREL16_HIGHERA
:
3829 case R_PPC64_TPREL16_HIGHEST
:
3830 case R_PPC64_TPREL16_HIGHESTA
:
3831 case R_PPC64_TPREL64
:
3832 /* These relocations are relative but in a shared library the
3833 linker doesn't know the thread pointer base. */
3834 return bfd_link_dll (info
);
3838 /* Whether an undefined weak symbol should resolve to its link-time
3839 value, even in PIC or PIE objects. */
3840 #define UNDEFWEAK_NO_DYNAMIC_RELOC(INFO, H) \
3841 ((H)->root.type == bfd_link_hash_undefweak \
3842 && (ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT \
3843 || (INFO)->dynamic_undefined_weak == 0))
3845 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3846 copying dynamic variables from a shared lib into an app's dynbss
3847 section, and instead use a dynamic relocation to point into the
3848 shared lib. With code that gcc generates, it's vital that this be
3849 enabled; In the PowerPC64 ABI, the address of a function is actually
3850 the address of a function descriptor, which resides in the .opd
3851 section. gcc uses the descriptor directly rather than going via the
3852 GOT as some other ABI's do, which means that initialized function
3853 pointers must reference the descriptor. Thus, a function pointer
3854 initialized to the address of a function in a shared library will
3855 either require a copy reloc, or a dynamic reloc. Using a copy reloc
3856 redefines the function descriptor symbol to point to the copy. This
3857 presents a problem as a plt entry for that function is also
3858 initialized from the function descriptor symbol and the copy reloc
3859 may not be initialized first. */
3860 #define ELIMINATE_COPY_RELOCS 1
3862 /* Section name for stubs is the associated section name plus this
3864 #define STUB_SUFFIX ".stub"
3867 ppc_stub_long_branch:
3868 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3869 destination, but a 24 bit branch in a stub section will reach.
3872 ppc_stub_plt_branch:
3873 Similar to the above, but a 24 bit branch in the stub section won't
3874 reach its destination.
3875 . addis %r11,%r2,xxx@toc@ha
3876 . ld %r12,xxx@toc@l(%r11)
3881 Used to call a function in a shared library. If it so happens that
3882 the plt entry referenced crosses a 64k boundary, then an extra
3883 "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr".
3885 . addis %r11,%r2,xxx@toc@ha
3886 . ld %r12,xxx+0@toc@l(%r11)
3888 . ld %r2,xxx+8@toc@l(%r11)
3889 . ld %r11,xxx+16@toc@l(%r11)
3892 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3893 code to adjust the value and save r2 to support multiple toc sections.
3894 A ppc_stub_long_branch with an r2 offset looks like:
3896 . addis %r2,%r2,off@ha
3897 . addi %r2,%r2,off@l
3900 A ppc_stub_plt_branch with an r2 offset looks like:
3902 . addis %r11,%r2,xxx@toc@ha
3903 . ld %r12,xxx@toc@l(%r11)
3904 . addis %r2,%r2,off@ha
3905 . addi %r2,%r2,off@l
3909 In cases where the "addis" instruction would add zero, the "addis" is
3910 omitted and following instructions modified slightly in some cases.
3913 enum ppc_stub_type
{
3915 ppc_stub_long_branch
,
3916 ppc_stub_long_branch_r2off
,
3917 ppc_stub_plt_branch
,
3918 ppc_stub_plt_branch_r2off
,
3920 ppc_stub_plt_call_r2save
,
3921 ppc_stub_global_entry
,
3925 /* Information on stub grouping. */
3928 /* The stub section. */
3930 /* This is the section to which stubs in the group will be attached. */
3933 struct map_stub
*next
;
3934 /* Whether to emit a copy of register save/restore functions in this
3937 /* The offset of the __tls_get_addr_opt plt stub bctrl in this group,
3938 or -1u if no such stub with bctrl exists. */
3939 unsigned int tls_get_addr_opt_bctrl
;
3942 struct ppc_stub_hash_entry
{
3944 /* Base hash table entry structure. */
3945 struct bfd_hash_entry root
;
3947 enum ppc_stub_type stub_type
;
3949 /* Group information. */
3950 struct map_stub
*group
;
3952 /* Offset within stub_sec of the beginning of this stub. */
3953 bfd_vma stub_offset
;
3955 /* Given the symbol's value and its section we can determine its final
3956 value when building the stubs (so the stub knows where to jump. */
3957 bfd_vma target_value
;
3958 asection
*target_section
;
3960 /* The symbol table entry, if any, that this was derived from. */
3961 struct ppc_link_hash_entry
*h
;
3962 struct plt_entry
*plt_ent
;
3964 /* Symbol st_other. */
3965 unsigned char other
;
3968 struct ppc_branch_hash_entry
{
3970 /* Base hash table entry structure. */
3971 struct bfd_hash_entry root
;
3973 /* Offset within branch lookup table. */
3974 unsigned int offset
;
3976 /* Generation marker. */
3980 /* Used to track dynamic relocations for local symbols. */
3981 struct ppc_dyn_relocs
3983 struct ppc_dyn_relocs
*next
;
3985 /* The input section of the reloc. */
3988 /* Total number of relocs copied for the input section. */
3989 unsigned int count
: 31;
3991 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3992 unsigned int ifunc
: 1;
3995 struct ppc_link_hash_entry
3997 struct elf_link_hash_entry elf
;
4000 /* A pointer to the most recently used stub hash entry against this
4002 struct ppc_stub_hash_entry
*stub_cache
;
4004 /* A pointer to the next symbol starting with a '.' */
4005 struct ppc_link_hash_entry
*next_dot_sym
;
4008 /* Track dynamic relocs copied for this symbol. */
4009 struct elf_dyn_relocs
*dyn_relocs
;
4011 /* Chain of aliases referring to a weakdef. */
4012 struct ppc_link_hash_entry
*weakref
;
4014 /* Link between function code and descriptor symbols. */
4015 struct ppc_link_hash_entry
*oh
;
4017 /* Flag function code and descriptor symbols. */
4018 unsigned int is_func
:1;
4019 unsigned int is_func_descriptor
:1;
4020 unsigned int fake
:1;
4022 /* Whether global opd/toc sym has been adjusted or not.
4023 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
4024 should be set for all globals defined in any opd/toc section. */
4025 unsigned int adjust_done
:1;
4027 /* Set if this is an out-of-line register save/restore function,
4028 with non-standard calling convention. */
4029 unsigned int save_res
:1;
4031 /* Set if a duplicate symbol with non-zero localentry is detected,
4032 even when the duplicate symbol does not provide a definition. */
4033 unsigned int non_zero_localentry
:1;
4035 /* Contexts in which symbol is used in the GOT (or TOC).
4036 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
4037 corresponding relocs are encountered during check_relocs.
4038 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
4039 indicate the corresponding GOT entry type is not needed.
4040 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
4041 a TPREL one. We use a separate flag rather than setting TPREL
4042 just for convenience in distinguishing the two cases. */
4043 #define TLS_GD 1 /* GD reloc. */
4044 #define TLS_LD 2 /* LD reloc. */
4045 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
4046 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
4047 #define TLS_TLS 16 /* Any TLS reloc. */
4048 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
4049 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
4050 #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
4051 unsigned char tls_mask
;
4054 /* ppc64 ELF linker hash table. */
4056 struct ppc_link_hash_table
4058 struct elf_link_hash_table elf
;
4060 /* The stub hash table. */
4061 struct bfd_hash_table stub_hash_table
;
4063 /* Another hash table for plt_branch stubs. */
4064 struct bfd_hash_table branch_hash_table
;
4066 /* Hash table for function prologue tocsave. */
4067 htab_t tocsave_htab
;
4069 /* Various options and other info passed from the linker. */
4070 struct ppc64_elf_params
*params
;
4072 /* The size of sec_info below. */
4073 unsigned int sec_info_arr_size
;
4075 /* Per-section array of extra section info. Done this way rather
4076 than as part of ppc64_elf_section_data so we have the info for
4077 non-ppc64 sections. */
4080 /* Along with elf_gp, specifies the TOC pointer used by this section. */
4085 /* The section group that this section belongs to. */
4086 struct map_stub
*group
;
4087 /* A temp section list pointer. */
4092 /* Linked list of groups. */
4093 struct map_stub
*group
;
4095 /* Temp used when calculating TOC pointers. */
4098 asection
*toc_first_sec
;
4100 /* Used when adding symbols. */
4101 struct ppc_link_hash_entry
*dot_syms
;
4103 /* Shortcuts to get to dynamic linker sections. */
4108 asection
*glink_eh_frame
;
4110 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
4111 struct ppc_link_hash_entry
*tls_get_addr
;
4112 struct ppc_link_hash_entry
*tls_get_addr_fd
;
4114 /* The size of reliplt used by got entry relocs. */
4115 bfd_size_type got_reli_size
;
4118 unsigned long stub_count
[ppc_stub_global_entry
];
4120 /* Number of stubs against global syms. */
4121 unsigned long stub_globals
;
4123 /* Set if we're linking code with function descriptors. */
4124 unsigned int opd_abi
:1;
4126 /* Support for multiple toc sections. */
4127 unsigned int do_multi_toc
:1;
4128 unsigned int multi_toc_needed
:1;
4129 unsigned int second_toc_pass
:1;
4130 unsigned int do_toc_opt
:1;
4132 /* Set if tls optimization is enabled. */
4133 unsigned int do_tls_opt
:1;
4136 unsigned int stub_error
:1;
4138 /* Whether func_desc_adjust needs to be run over symbols. */
4139 unsigned int need_func_desc_adj
:1;
4141 /* Whether there exist local gnu indirect function resolvers,
4142 referenced by dynamic relocations. */
4143 unsigned int local_ifunc_resolver
:1;
4144 unsigned int maybe_local_ifunc_resolver
:1;
4146 /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */
4147 unsigned int has_plt_localentry0
:1;
4149 /* Incremented every time we size stubs. */
4150 unsigned int stub_iteration
;
4152 /* Small local sym cache. */
4153 struct sym_cache sym_cache
;
4156 /* Rename some of the generic section flags to better document how they
4159 /* Nonzero if this section has TLS related relocations. */
4160 #define has_tls_reloc sec_flg0
4162 /* Nonzero if this section has a call to __tls_get_addr. */
4163 #define has_tls_get_addr_call sec_flg1
4165 /* Nonzero if this section has any toc or got relocs. */
4166 #define has_toc_reloc sec_flg2
4168 /* Nonzero if this section has a call to another section that uses
4170 #define makes_toc_func_call sec_flg3
4172 /* Recursion protection when determining above flag. */
4173 #define call_check_in_progress sec_flg4
4174 #define call_check_done sec_flg5
4176 /* Get the ppc64 ELF linker hash table from a link_info structure. */
4178 #define ppc_hash_table(p) \
4179 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
4180 == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL)
4182 #define ppc_stub_hash_lookup(table, string, create, copy) \
4183 ((struct ppc_stub_hash_entry *) \
4184 bfd_hash_lookup ((table), (string), (create), (copy)))
4186 #define ppc_branch_hash_lookup(table, string, create, copy) \
4187 ((struct ppc_branch_hash_entry *) \
4188 bfd_hash_lookup ((table), (string), (create), (copy)))
4190 /* Create an entry in the stub hash table. */
4192 static struct bfd_hash_entry
*
4193 stub_hash_newfunc (struct bfd_hash_entry
*entry
,
4194 struct bfd_hash_table
*table
,
4197 /* Allocate the structure if it has not already been allocated by a
4201 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_stub_hash_entry
));
4206 /* Call the allocation method of the superclass. */
4207 entry
= bfd_hash_newfunc (entry
, table
, string
);
4210 struct ppc_stub_hash_entry
*eh
;
4212 /* Initialize the local fields. */
4213 eh
= (struct ppc_stub_hash_entry
*) entry
;
4214 eh
->stub_type
= ppc_stub_none
;
4216 eh
->stub_offset
= 0;
4217 eh
->target_value
= 0;
4218 eh
->target_section
= NULL
;
4227 /* Create an entry in the branch hash table. */
4229 static struct bfd_hash_entry
*
4230 branch_hash_newfunc (struct bfd_hash_entry
*entry
,
4231 struct bfd_hash_table
*table
,
4234 /* Allocate the structure if it has not already been allocated by a
4238 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_branch_hash_entry
));
4243 /* Call the allocation method of the superclass. */
4244 entry
= bfd_hash_newfunc (entry
, table
, string
);
4247 struct ppc_branch_hash_entry
*eh
;
4249 /* Initialize the local fields. */
4250 eh
= (struct ppc_branch_hash_entry
*) entry
;
4258 /* Create an entry in a ppc64 ELF linker hash table. */
4260 static struct bfd_hash_entry
*
4261 link_hash_newfunc (struct bfd_hash_entry
*entry
,
4262 struct bfd_hash_table
*table
,
4265 /* Allocate the structure if it has not already been allocated by a
4269 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_link_hash_entry
));
4274 /* Call the allocation method of the superclass. */
4275 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
4278 struct ppc_link_hash_entry
*eh
= (struct ppc_link_hash_entry
*) entry
;
4280 memset (&eh
->u
.stub_cache
, 0,
4281 (sizeof (struct ppc_link_hash_entry
)
4282 - offsetof (struct ppc_link_hash_entry
, u
.stub_cache
)));
4284 /* When making function calls, old ABI code references function entry
4285 points (dot symbols), while new ABI code references the function
4286 descriptor symbol. We need to make any combination of reference and
4287 definition work together, without breaking archive linking.
4289 For a defined function "foo" and an undefined call to "bar":
4290 An old object defines "foo" and ".foo", references ".bar" (possibly
4292 A new object defines "foo" and references "bar".
4294 A new object thus has no problem with its undefined symbols being
4295 satisfied by definitions in an old object. On the other hand, the
4296 old object won't have ".bar" satisfied by a new object.
4298 Keep a list of newly added dot-symbols. */
4300 if (string
[0] == '.')
4302 struct ppc_link_hash_table
*htab
;
4304 htab
= (struct ppc_link_hash_table
*) table
;
4305 eh
->u
.next_dot_sym
= htab
->dot_syms
;
4306 htab
->dot_syms
= eh
;
4313 struct tocsave_entry
{
4319 tocsave_htab_hash (const void *p
)
4321 const struct tocsave_entry
*e
= (const struct tocsave_entry
*) p
;
4322 return ((bfd_vma
) (intptr_t) e
->sec
^ e
->offset
) >> 3;
4326 tocsave_htab_eq (const void *p1
, const void *p2
)
4328 const struct tocsave_entry
*e1
= (const struct tocsave_entry
*) p1
;
4329 const struct tocsave_entry
*e2
= (const struct tocsave_entry
*) p2
;
4330 return e1
->sec
== e2
->sec
&& e1
->offset
== e2
->offset
;
4333 /* Destroy a ppc64 ELF linker hash table. */
4336 ppc64_elf_link_hash_table_free (bfd
*obfd
)
4338 struct ppc_link_hash_table
*htab
;
4340 htab
= (struct ppc_link_hash_table
*) obfd
->link
.hash
;
4341 if (htab
->tocsave_htab
)
4342 htab_delete (htab
->tocsave_htab
);
4343 bfd_hash_table_free (&htab
->branch_hash_table
);
4344 bfd_hash_table_free (&htab
->stub_hash_table
);
4345 _bfd_elf_link_hash_table_free (obfd
);
4348 /* Create a ppc64 ELF linker hash table. */
4350 static struct bfd_link_hash_table
*
4351 ppc64_elf_link_hash_table_create (bfd
*abfd
)
4353 struct ppc_link_hash_table
*htab
;
4354 bfd_size_type amt
= sizeof (struct ppc_link_hash_table
);
4356 htab
= bfd_zmalloc (amt
);
4360 if (!_bfd_elf_link_hash_table_init (&htab
->elf
, abfd
, link_hash_newfunc
,
4361 sizeof (struct ppc_link_hash_entry
),
4368 /* Init the stub hash table too. */
4369 if (!bfd_hash_table_init (&htab
->stub_hash_table
, stub_hash_newfunc
,
4370 sizeof (struct ppc_stub_hash_entry
)))
4372 _bfd_elf_link_hash_table_free (abfd
);
4376 /* And the branch hash table. */
4377 if (!bfd_hash_table_init (&htab
->branch_hash_table
, branch_hash_newfunc
,
4378 sizeof (struct ppc_branch_hash_entry
)))
4380 bfd_hash_table_free (&htab
->stub_hash_table
);
4381 _bfd_elf_link_hash_table_free (abfd
);
4385 htab
->tocsave_htab
= htab_try_create (1024,
4389 if (htab
->tocsave_htab
== NULL
)
4391 ppc64_elf_link_hash_table_free (abfd
);
4394 htab
->elf
.root
.hash_table_free
= ppc64_elf_link_hash_table_free
;
4396 /* Initializing two fields of the union is just cosmetic. We really
4397 only care about glist, but when compiled on a 32-bit host the
4398 bfd_vma fields are larger. Setting the bfd_vma to zero makes
4399 debugger inspection of these fields look nicer. */
4400 htab
->elf
.init_got_refcount
.refcount
= 0;
4401 htab
->elf
.init_got_refcount
.glist
= NULL
;
4402 htab
->elf
.init_plt_refcount
.refcount
= 0;
4403 htab
->elf
.init_plt_refcount
.glist
= NULL
;
4404 htab
->elf
.init_got_offset
.offset
= 0;
4405 htab
->elf
.init_got_offset
.glist
= NULL
;
4406 htab
->elf
.init_plt_offset
.offset
= 0;
4407 htab
->elf
.init_plt_offset
.glist
= NULL
;
4409 return &htab
->elf
.root
;
4412 /* Create sections for linker generated code. */
4415 create_linkage_sections (bfd
*dynobj
, struct bfd_link_info
*info
)
4417 struct ppc_link_hash_table
*htab
;
4420 htab
= ppc_hash_table (info
);
4422 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_READONLY
4423 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
4424 if (htab
->params
->save_restore_funcs
)
4426 /* Create .sfpr for code to save and restore fp regs. */
4427 htab
->sfpr
= bfd_make_section_anyway_with_flags (dynobj
, ".sfpr",
4429 if (htab
->sfpr
== NULL
4430 || ! bfd_set_section_alignment (dynobj
, htab
->sfpr
, 2))
4434 if (bfd_link_relocatable (info
))
4437 /* Create .glink for lazy dynamic linking support. */
4438 htab
->glink
= bfd_make_section_anyway_with_flags (dynobj
, ".glink",
4440 if (htab
->glink
== NULL
4441 || ! bfd_set_section_alignment (dynobj
, htab
->glink
, 3))
4444 if (!info
->no_ld_generated_unwind_info
)
4446 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_HAS_CONTENTS
4447 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
4448 htab
->glink_eh_frame
= bfd_make_section_anyway_with_flags (dynobj
,
4451 if (htab
->glink_eh_frame
== NULL
4452 || !bfd_set_section_alignment (dynobj
, htab
->glink_eh_frame
, 2))
4456 flags
= SEC_ALLOC
| SEC_LINKER_CREATED
;
4457 htab
->elf
.iplt
= bfd_make_section_anyway_with_flags (dynobj
, ".iplt", flags
);
4458 if (htab
->elf
.iplt
== NULL
4459 || ! bfd_set_section_alignment (dynobj
, htab
->elf
.iplt
, 3))
4462 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
4463 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
4465 = bfd_make_section_anyway_with_flags (dynobj
, ".rela.iplt", flags
);
4466 if (htab
->elf
.irelplt
== NULL
4467 || ! bfd_set_section_alignment (dynobj
, htab
->elf
.irelplt
, 3))
4470 /* Create branch lookup table for plt_branch stubs. */
4471 flags
= (SEC_ALLOC
| SEC_LOAD
4472 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
4473 htab
->brlt
= bfd_make_section_anyway_with_flags (dynobj
, ".branch_lt",
4475 if (htab
->brlt
== NULL
4476 || ! bfd_set_section_alignment (dynobj
, htab
->brlt
, 3))
4479 if (!bfd_link_pic (info
))
4482 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
4483 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
4484 htab
->relbrlt
= bfd_make_section_anyway_with_flags (dynobj
,
4487 if (htab
->relbrlt
== NULL
4488 || ! bfd_set_section_alignment (dynobj
, htab
->relbrlt
, 3))
4494 /* Satisfy the ELF linker by filling in some fields in our fake bfd. */
4497 ppc64_elf_init_stub_bfd (struct bfd_link_info
*info
,
4498 struct ppc64_elf_params
*params
)
4500 struct ppc_link_hash_table
*htab
;
4502 elf_elfheader (params
->stub_bfd
)->e_ident
[EI_CLASS
] = ELFCLASS64
;
4504 /* Always hook our dynamic sections into the first bfd, which is the
4505 linker created stub bfd. This ensures that the GOT header is at
4506 the start of the output TOC section. */
4507 htab
= ppc_hash_table (info
);
4508 htab
->elf
.dynobj
= params
->stub_bfd
;
4509 htab
->params
= params
;
4511 return create_linkage_sections (htab
->elf
.dynobj
, info
);
4514 /* Build a name for an entry in the stub hash table. */
4517 ppc_stub_name (const asection
*input_section
,
4518 const asection
*sym_sec
,
4519 const struct ppc_link_hash_entry
*h
,
4520 const Elf_Internal_Rela
*rel
)
4525 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
4526 offsets from a sym as a branch target? In fact, we could
4527 probably assume the addend is always zero. */
4528 BFD_ASSERT (((int) rel
->r_addend
& 0xffffffff) == rel
->r_addend
);
4532 len
= 8 + 1 + strlen (h
->elf
.root
.root
.string
) + 1 + 8 + 1;
4533 stub_name
= bfd_malloc (len
);
4534 if (stub_name
== NULL
)
4537 len
= sprintf (stub_name
, "%08x.%s+%x",
4538 input_section
->id
& 0xffffffff,
4539 h
->elf
.root
.root
.string
,
4540 (int) rel
->r_addend
& 0xffffffff);
4544 len
= 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
4545 stub_name
= bfd_malloc (len
);
4546 if (stub_name
== NULL
)
4549 len
= sprintf (stub_name
, "%08x.%x:%x+%x",
4550 input_section
->id
& 0xffffffff,
4551 sym_sec
->id
& 0xffffffff,
4552 (int) ELF64_R_SYM (rel
->r_info
) & 0xffffffff,
4553 (int) rel
->r_addend
& 0xffffffff);
4555 if (len
> 2 && stub_name
[len
- 2] == '+' && stub_name
[len
- 1] == '0')
4556 stub_name
[len
- 2] = 0;
4560 /* Look up an entry in the stub hash. Stub entries are cached because
4561 creating the stub name takes a bit of time. */
4563 static struct ppc_stub_hash_entry
*
4564 ppc_get_stub_entry (const asection
*input_section
,
4565 const asection
*sym_sec
,
4566 struct ppc_link_hash_entry
*h
,
4567 const Elf_Internal_Rela
*rel
,
4568 struct ppc_link_hash_table
*htab
)
4570 struct ppc_stub_hash_entry
*stub_entry
;
4571 struct map_stub
*group
;
4573 /* If this input section is part of a group of sections sharing one
4574 stub section, then use the id of the first section in the group.
4575 Stub names need to include a section id, as there may well be
4576 more than one stub used to reach say, printf, and we need to
4577 distinguish between them. */
4578 group
= htab
->sec_info
[input_section
->id
].u
.group
;
4582 if (h
!= NULL
&& h
->u
.stub_cache
!= NULL
4583 && h
->u
.stub_cache
->h
== h
4584 && h
->u
.stub_cache
->group
== group
)
4586 stub_entry
= h
->u
.stub_cache
;
4592 stub_name
= ppc_stub_name (group
->link_sec
, sym_sec
, h
, rel
);
4593 if (stub_name
== NULL
)
4596 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
4597 stub_name
, FALSE
, FALSE
);
4599 h
->u
.stub_cache
= stub_entry
;
4607 /* Add a new stub entry to the stub hash. Not all fields of the new
4608 stub entry are initialised. */
4610 static struct ppc_stub_hash_entry
*
4611 ppc_add_stub (const char *stub_name
,
4613 struct bfd_link_info
*info
)
4615 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
4616 struct map_stub
*group
;
4619 struct ppc_stub_hash_entry
*stub_entry
;
4621 group
= htab
->sec_info
[section
->id
].u
.group
;
4622 link_sec
= group
->link_sec
;
4623 stub_sec
= group
->stub_sec
;
4624 if (stub_sec
== NULL
)
4630 namelen
= strlen (link_sec
->name
);
4631 len
= namelen
+ sizeof (STUB_SUFFIX
);
4632 s_name
= bfd_alloc (htab
->params
->stub_bfd
, len
);
4636 memcpy (s_name
, link_sec
->name
, namelen
);
4637 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
4638 stub_sec
= (*htab
->params
->add_stub_section
) (s_name
, link_sec
);
4639 if (stub_sec
== NULL
)
4641 group
->stub_sec
= stub_sec
;
4644 /* Enter this entry into the linker stub hash table. */
4645 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
, stub_name
,
4647 if (stub_entry
== NULL
)
4649 /* xgettext:c-format */
4650 info
->callbacks
->einfo (_("%P: %B: cannot create stub entry %s\n"),
4651 section
->owner
, stub_name
);
4655 stub_entry
->group
= group
;
4656 stub_entry
->stub_offset
= 0;
4660 /* Create .got and .rela.got sections in ABFD, and .got in dynobj if
4661 not already done. */
4664 create_got_section (bfd
*abfd
, struct bfd_link_info
*info
)
4666 asection
*got
, *relgot
;
4668 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
4670 if (!is_ppc64_elf (abfd
))
4676 && !_bfd_elf_create_got_section (htab
->elf
.dynobj
, info
))
4679 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
4680 | SEC_LINKER_CREATED
);
4682 got
= bfd_make_section_anyway_with_flags (abfd
, ".got", flags
);
4684 || !bfd_set_section_alignment (abfd
, got
, 3))
4687 relgot
= bfd_make_section_anyway_with_flags (abfd
, ".rela.got",
4688 flags
| SEC_READONLY
);
4690 || ! bfd_set_section_alignment (abfd
, relgot
, 3))
4693 ppc64_elf_tdata (abfd
)->got
= got
;
4694 ppc64_elf_tdata (abfd
)->relgot
= relgot
;
4698 /* Follow indirect and warning symbol links. */
4700 static inline struct bfd_link_hash_entry
*
4701 follow_link (struct bfd_link_hash_entry
*h
)
4703 while (h
->type
== bfd_link_hash_indirect
4704 || h
->type
== bfd_link_hash_warning
)
4709 static inline struct elf_link_hash_entry
*
4710 elf_follow_link (struct elf_link_hash_entry
*h
)
4712 return (struct elf_link_hash_entry
*) follow_link (&h
->root
);
4715 static inline struct ppc_link_hash_entry
*
4716 ppc_follow_link (struct ppc_link_hash_entry
*h
)
4718 return (struct ppc_link_hash_entry
*) follow_link (&h
->elf
.root
);
4721 /* Merge PLT info on FROM with that on TO. */
4724 move_plt_plist (struct ppc_link_hash_entry
*from
,
4725 struct ppc_link_hash_entry
*to
)
4727 if (from
->elf
.plt
.plist
!= NULL
)
4729 if (to
->elf
.plt
.plist
!= NULL
)
4731 struct plt_entry
**entp
;
4732 struct plt_entry
*ent
;
4734 for (entp
= &from
->elf
.plt
.plist
; (ent
= *entp
) != NULL
; )
4736 struct plt_entry
*dent
;
4738 for (dent
= to
->elf
.plt
.plist
; dent
!= NULL
; dent
= dent
->next
)
4739 if (dent
->addend
== ent
->addend
)
4741 dent
->plt
.refcount
+= ent
->plt
.refcount
;
4748 *entp
= to
->elf
.plt
.plist
;
4751 to
->elf
.plt
.plist
= from
->elf
.plt
.plist
;
4752 from
->elf
.plt
.plist
= NULL
;
4756 /* Copy the extra info we tack onto an elf_link_hash_entry. */
4759 ppc64_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
4760 struct elf_link_hash_entry
*dir
,
4761 struct elf_link_hash_entry
*ind
)
4763 struct ppc_link_hash_entry
*edir
, *eind
;
4765 edir
= (struct ppc_link_hash_entry
*) dir
;
4766 eind
= (struct ppc_link_hash_entry
*) ind
;
4768 edir
->is_func
|= eind
->is_func
;
4769 edir
->is_func_descriptor
|= eind
->is_func_descriptor
;
4770 edir
->tls_mask
|= eind
->tls_mask
;
4771 if (eind
->oh
!= NULL
)
4772 edir
->oh
= ppc_follow_link (eind
->oh
);
4774 /* If called to transfer flags for a weakdef during processing
4775 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4776 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4777 if (!(ELIMINATE_COPY_RELOCS
4778 && eind
->elf
.root
.type
!= bfd_link_hash_indirect
4779 && edir
->elf
.dynamic_adjusted
))
4780 edir
->elf
.non_got_ref
|= eind
->elf
.non_got_ref
;
4782 if (edir
->elf
.versioned
!= versioned_hidden
)
4783 edir
->elf
.ref_dynamic
|= eind
->elf
.ref_dynamic
;
4784 edir
->elf
.ref_regular
|= eind
->elf
.ref_regular
;
4785 edir
->elf
.ref_regular_nonweak
|= eind
->elf
.ref_regular_nonweak
;
4786 edir
->elf
.needs_plt
|= eind
->elf
.needs_plt
;
4787 edir
->elf
.pointer_equality_needed
|= eind
->elf
.pointer_equality_needed
;
4789 /* If we were called to copy over info for a weak sym, don't copy
4790 dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs
4791 in order to simplify readonly_dynrelocs and save a field in the
4792 symbol hash entry, but that means dyn_relocs can't be used in any
4793 tests about a specific symbol, or affect other symbol flags which
4795 Chain weakdefs so we can get from the weakdef back to an alias.
4796 The list is circular so that we don't need to use u.weakdef as
4797 well as this list to look at all aliases. */
4798 if (eind
->elf
.root
.type
!= bfd_link_hash_indirect
)
4800 struct ppc_link_hash_entry
*cur
, *add
, *next
;
4805 cur
= edir
->weakref
;
4810 /* We can be called twice for the same symbols.
4811 Don't make multiple loops. */
4815 } while (cur
!= edir
);
4817 next
= add
->weakref
;
4820 add
->weakref
= edir
->weakref
!= NULL
? edir
->weakref
: edir
;
4821 edir
->weakref
= add
;
4824 } while (add
!= NULL
&& add
!= eind
);
4828 /* Copy over any dynamic relocs we may have on the indirect sym. */
4829 if (eind
->dyn_relocs
!= NULL
)
4831 if (edir
->dyn_relocs
!= NULL
)
4833 struct elf_dyn_relocs
**pp
;
4834 struct elf_dyn_relocs
*p
;
4836 /* Add reloc counts against the indirect sym to the direct sym
4837 list. Merge any entries against the same section. */
4838 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
4840 struct elf_dyn_relocs
*q
;
4842 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
4843 if (q
->sec
== p
->sec
)
4845 q
->pc_count
+= p
->pc_count
;
4846 q
->count
+= p
->count
;
4853 *pp
= edir
->dyn_relocs
;
4856 edir
->dyn_relocs
= eind
->dyn_relocs
;
4857 eind
->dyn_relocs
= NULL
;
4860 /* Copy over got entries that we may have already seen to the
4861 symbol which just became indirect. */
4862 if (eind
->elf
.got
.glist
!= NULL
)
4864 if (edir
->elf
.got
.glist
!= NULL
)
4866 struct got_entry
**entp
;
4867 struct got_entry
*ent
;
4869 for (entp
= &eind
->elf
.got
.glist
; (ent
= *entp
) != NULL
; )
4871 struct got_entry
*dent
;
4873 for (dent
= edir
->elf
.got
.glist
; dent
!= NULL
; dent
= dent
->next
)
4874 if (dent
->addend
== ent
->addend
4875 && dent
->owner
== ent
->owner
4876 && dent
->tls_type
== ent
->tls_type
)
4878 dent
->got
.refcount
+= ent
->got
.refcount
;
4885 *entp
= edir
->elf
.got
.glist
;
4888 edir
->elf
.got
.glist
= eind
->elf
.got
.glist
;
4889 eind
->elf
.got
.glist
= NULL
;
4892 /* And plt entries. */
4893 move_plt_plist (eind
, edir
);
4895 if (eind
->elf
.dynindx
!= -1)
4897 if (edir
->elf
.dynindx
!= -1)
4898 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
4899 edir
->elf
.dynstr_index
);
4900 edir
->elf
.dynindx
= eind
->elf
.dynindx
;
4901 edir
->elf
.dynstr_index
= eind
->elf
.dynstr_index
;
4902 eind
->elf
.dynindx
= -1;
4903 eind
->elf
.dynstr_index
= 0;
4907 /* Find the function descriptor hash entry from the given function code
4908 hash entry FH. Link the entries via their OH fields. */
4910 static struct ppc_link_hash_entry
*
4911 lookup_fdh (struct ppc_link_hash_entry
*fh
, struct ppc_link_hash_table
*htab
)
4913 struct ppc_link_hash_entry
*fdh
= fh
->oh
;
4917 const char *fd_name
= fh
->elf
.root
.root
.string
+ 1;
4919 fdh
= (struct ppc_link_hash_entry
*)
4920 elf_link_hash_lookup (&htab
->elf
, fd_name
, FALSE
, FALSE
, FALSE
);
4924 fdh
->is_func_descriptor
= 1;
4930 fdh
= ppc_follow_link (fdh
);
4931 fdh
->is_func_descriptor
= 1;
4936 /* Make a fake function descriptor sym for the undefined code sym FH. */
4938 static struct ppc_link_hash_entry
*
4939 make_fdh (struct bfd_link_info
*info
,
4940 struct ppc_link_hash_entry
*fh
)
4942 bfd
*abfd
= fh
->elf
.root
.u
.undef
.abfd
;
4943 struct bfd_link_hash_entry
*bh
= NULL
;
4944 struct ppc_link_hash_entry
*fdh
;
4945 flagword flags
= (fh
->elf
.root
.type
== bfd_link_hash_undefweak
4949 if (!_bfd_generic_link_add_one_symbol (info
, abfd
,
4950 fh
->elf
.root
.root
.string
+ 1,
4951 flags
, bfd_und_section_ptr
, 0,
4952 NULL
, FALSE
, FALSE
, &bh
))
4955 fdh
= (struct ppc_link_hash_entry
*) bh
;
4956 fdh
->elf
.non_elf
= 0;
4958 fdh
->is_func_descriptor
= 1;
4965 /* Fix function descriptor symbols defined in .opd sections to be
4969 ppc64_elf_add_symbol_hook (bfd
*ibfd
,
4970 struct bfd_link_info
*info
,
4971 Elf_Internal_Sym
*isym
,
4973 flagword
*flags ATTRIBUTE_UNUSED
,
4977 if (ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
4978 && (ibfd
->flags
& DYNAMIC
) == 0
4979 && bfd_get_flavour (info
->output_bfd
) == bfd_target_elf_flavour
)
4980 elf_tdata (info
->output_bfd
)->has_gnu_symbols
|= elf_gnu_symbol_ifunc
;
4983 && strcmp ((*sec
)->name
, ".opd") == 0)
4987 if (!(ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
4988 || ELF_ST_TYPE (isym
->st_info
) == STT_FUNC
))
4989 isym
->st_info
= ELF_ST_INFO (ELF_ST_BIND (isym
->st_info
), STT_FUNC
);
4991 /* If the symbol is a function defined in .opd, and the function
4992 code is in a discarded group, let it appear to be undefined. */
4993 if (!bfd_link_relocatable (info
)
4994 && (*sec
)->reloc_count
!= 0
4995 && opd_entry_value (*sec
, *value
, &code_sec
, NULL
,
4996 FALSE
) != (bfd_vma
) -1
4997 && discarded_section (code_sec
))
4999 *sec
= bfd_und_section_ptr
;
5000 isym
->st_shndx
= SHN_UNDEF
;
5003 else if (*sec
!= NULL
5004 && strcmp ((*sec
)->name
, ".toc") == 0
5005 && ELF_ST_TYPE (isym
->st_info
) == STT_OBJECT
)
5007 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
5009 htab
->params
->object_in_toc
= 1;
5012 if ((STO_PPC64_LOCAL_MASK
& isym
->st_other
) != 0)
5014 if (abiversion (ibfd
) == 0)
5015 set_abiversion (ibfd
, 2);
5016 else if (abiversion (ibfd
) == 1)
5018 info
->callbacks
->einfo (_("%P: symbol '%s' has invalid st_other"
5019 " for ABI version 1\n"), name
);
5020 bfd_set_error (bfd_error_bad_value
);
5028 /* Merge non-visibility st_other attributes: local entry point. */
5031 ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry
*h
,
5032 const Elf_Internal_Sym
*isym
,
5033 bfd_boolean definition
,
5034 bfd_boolean dynamic
)
5036 if (definition
&& (!dynamic
|| !h
->def_regular
))
5037 h
->other
= ((isym
->st_other
& ~ELF_ST_VISIBILITY (-1))
5038 | ELF_ST_VISIBILITY (h
->other
));
5041 /* Hook called on merging a symbol. We use this to clear "fake" since
5042 we now have a real symbol. */
5045 ppc64_elf_merge_symbol (struct elf_link_hash_entry
*h
,
5046 const Elf_Internal_Sym
*isym
,
5047 asection
**psec ATTRIBUTE_UNUSED
,
5048 bfd_boolean newdef ATTRIBUTE_UNUSED
,
5049 bfd_boolean olddef ATTRIBUTE_UNUSED
,
5050 bfd
*oldbfd ATTRIBUTE_UNUSED
,
5051 const asection
*oldsec ATTRIBUTE_UNUSED
)
5053 ((struct ppc_link_hash_entry
*) h
)->fake
= 0;
5054 if ((STO_PPC64_LOCAL_MASK
& isym
->st_other
) != 0)
5055 ((struct ppc_link_hash_entry
*) h
)->non_zero_localentry
= 1;
5059 /* This function makes an old ABI object reference to ".bar" cause the
5060 inclusion of a new ABI object archive that defines "bar".
5061 NAME is a symbol defined in an archive. Return a symbol in the hash
5062 table that might be satisfied by the archive symbols. */
5064 static struct elf_link_hash_entry
*
5065 ppc64_elf_archive_symbol_lookup (bfd
*abfd
,
5066 struct bfd_link_info
*info
,
5069 struct elf_link_hash_entry
*h
;
5073 h
= _bfd_elf_archive_symbol_lookup (abfd
, info
, name
);
5075 /* Don't return this sym if it is a fake function descriptor
5076 created by add_symbol_adjust. */
5077 && !((struct ppc_link_hash_entry
*) h
)->fake
)
5083 len
= strlen (name
);
5084 dot_name
= bfd_alloc (abfd
, len
+ 2);
5085 if (dot_name
== NULL
)
5086 return (struct elf_link_hash_entry
*) 0 - 1;
5088 memcpy (dot_name
+ 1, name
, len
+ 1);
5089 h
= _bfd_elf_archive_symbol_lookup (abfd
, info
, dot_name
);
5090 bfd_release (abfd
, dot_name
);
5094 /* This function satisfies all old ABI object references to ".bar" if a
5095 new ABI object defines "bar". Well, at least, undefined dot symbols
5096 are made weak. This stops later archive searches from including an
5097 object if we already have a function descriptor definition. It also
5098 prevents the linker complaining about undefined symbols.
5099 We also check and correct mismatched symbol visibility here. The
5100 most restrictive visibility of the function descriptor and the
5101 function entry symbol is used. */
5104 add_symbol_adjust (struct ppc_link_hash_entry
*eh
, struct bfd_link_info
*info
)
5106 struct ppc_link_hash_table
*htab
;
5107 struct ppc_link_hash_entry
*fdh
;
5109 if (eh
->elf
.root
.type
== bfd_link_hash_warning
)
5110 eh
= (struct ppc_link_hash_entry
*) eh
->elf
.root
.u
.i
.link
;
5112 if (eh
->elf
.root
.type
== bfd_link_hash_indirect
)
5115 if (eh
->elf
.root
.root
.string
[0] != '.')
5118 htab
= ppc_hash_table (info
);
5122 fdh
= lookup_fdh (eh
, htab
);
5124 && !bfd_link_relocatable (info
)
5125 && (eh
->elf
.root
.type
== bfd_link_hash_undefined
5126 || eh
->elf
.root
.type
== bfd_link_hash_undefweak
)
5127 && eh
->elf
.ref_regular
)
5129 /* Make an undefined function descriptor sym, in order to
5130 pull in an --as-needed shared lib. Archives are handled
5132 fdh
= make_fdh (info
, eh
);
5139 unsigned entry_vis
= ELF_ST_VISIBILITY (eh
->elf
.other
) - 1;
5140 unsigned descr_vis
= ELF_ST_VISIBILITY (fdh
->elf
.other
) - 1;
5142 /* Make both descriptor and entry symbol have the most
5143 constraining visibility of either symbol. */
5144 if (entry_vis
< descr_vis
)
5145 fdh
->elf
.other
+= entry_vis
- descr_vis
;
5146 else if (entry_vis
> descr_vis
)
5147 eh
->elf
.other
+= descr_vis
- entry_vis
;
5149 /* Propagate reference flags from entry symbol to function
5150 descriptor symbol. */
5151 fdh
->elf
.root
.non_ir_ref_regular
|= eh
->elf
.root
.non_ir_ref_regular
;
5152 fdh
->elf
.root
.non_ir_ref_dynamic
|= eh
->elf
.root
.non_ir_ref_dynamic
;
5153 fdh
->elf
.ref_regular
|= eh
->elf
.ref_regular
;
5154 fdh
->elf
.ref_regular_nonweak
|= eh
->elf
.ref_regular_nonweak
;
5156 if (!fdh
->elf
.forced_local
5157 && fdh
->elf
.dynindx
== -1
5158 && fdh
->elf
.versioned
!= versioned_hidden
5159 && (bfd_link_dll (info
)
5160 || fdh
->elf
.def_dynamic
5161 || fdh
->elf
.ref_dynamic
)
5162 && (eh
->elf
.ref_regular
5163 || eh
->elf
.def_regular
))
5165 if (! bfd_elf_link_record_dynamic_symbol (info
, &fdh
->elf
))
5173 /* Set up opd section info and abiversion for IBFD, and process list
5174 of dot-symbols we made in link_hash_newfunc. */
5177 ppc64_elf_before_check_relocs (bfd
*ibfd
, struct bfd_link_info
*info
)
5179 struct ppc_link_hash_table
*htab
;
5180 struct ppc_link_hash_entry
**p
, *eh
;
5181 asection
*opd
= bfd_get_section_by_name (ibfd
, ".opd");
5183 if (opd
!= NULL
&& opd
->size
!= 0)
5185 BFD_ASSERT (ppc64_elf_section_data (opd
)->sec_type
== sec_normal
);
5186 ppc64_elf_section_data (opd
)->sec_type
= sec_opd
;
5188 if (abiversion (ibfd
) == 0)
5189 set_abiversion (ibfd
, 1);
5190 else if (abiversion (ibfd
) >= 2)
5192 /* xgettext:c-format */
5193 info
->callbacks
->einfo (_("%P: %B .opd not allowed in ABI"
5195 ibfd
, abiversion (ibfd
));
5196 bfd_set_error (bfd_error_bad_value
);
5201 if (is_ppc64_elf (info
->output_bfd
))
5203 /* For input files without an explicit abiversion in e_flags
5204 we should have flagged any with symbol st_other bits set
5205 as ELFv1 and above flagged those with .opd as ELFv2.
5206 Set the output abiversion if not yet set, and for any input
5207 still ambiguous, take its abiversion from the output.
5208 Differences in ABI are reported later. */
5209 if (abiversion (info
->output_bfd
) == 0)
5210 set_abiversion (info
->output_bfd
, abiversion (ibfd
));
5211 else if (abiversion (ibfd
) == 0)
5212 set_abiversion (ibfd
, abiversion (info
->output_bfd
));
5215 htab
= ppc_hash_table (info
);
5219 if (opd
!= NULL
&& opd
->size
!= 0
5220 && (ibfd
->flags
& DYNAMIC
) == 0
5221 && (opd
->flags
& SEC_RELOC
) != 0
5222 && opd
->reloc_count
!= 0
5223 && !bfd_is_abs_section (opd
->output_section
)
5224 && info
->gc_sections
)
5226 /* Garbage collection needs some extra help with .opd sections.
5227 We don't want to necessarily keep everything referenced by
5228 relocs in .opd, as that would keep all functions. Instead,
5229 if we reference an .opd symbol (a function descriptor), we
5230 want to keep the function code symbol's section. This is
5231 easy for global symbols, but for local syms we need to keep
5232 information about the associated function section. */
5234 asection
**opd_sym_map
;
5235 Elf_Internal_Shdr
*symtab_hdr
;
5236 Elf_Internal_Rela
*relocs
, *rel_end
, *rel
;
5238 amt
= OPD_NDX (opd
->size
) * sizeof (*opd_sym_map
);
5239 opd_sym_map
= bfd_zalloc (ibfd
, amt
);
5240 if (opd_sym_map
== NULL
)
5242 ppc64_elf_section_data (opd
)->u
.opd
.func_sec
= opd_sym_map
;
5243 relocs
= _bfd_elf_link_read_relocs (ibfd
, opd
, NULL
, NULL
,
5247 symtab_hdr
= &elf_symtab_hdr (ibfd
);
5248 rel_end
= relocs
+ opd
->reloc_count
- 1;
5249 for (rel
= relocs
; rel
< rel_end
; rel
++)
5251 enum elf_ppc64_reloc_type r_type
= ELF64_R_TYPE (rel
->r_info
);
5252 unsigned long r_symndx
= ELF64_R_SYM (rel
->r_info
);
5254 if (r_type
== R_PPC64_ADDR64
5255 && ELF64_R_TYPE ((rel
+ 1)->r_info
) == R_PPC64_TOC
5256 && r_symndx
< symtab_hdr
->sh_info
)
5258 Elf_Internal_Sym
*isym
;
5261 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, ibfd
, r_symndx
);
5264 if (elf_section_data (opd
)->relocs
!= relocs
)
5269 s
= bfd_section_from_elf_index (ibfd
, isym
->st_shndx
);
5270 if (s
!= NULL
&& s
!= opd
)
5271 opd_sym_map
[OPD_NDX (rel
->r_offset
)] = s
;
5274 if (elf_section_data (opd
)->relocs
!= relocs
)
5278 p
= &htab
->dot_syms
;
5279 while ((eh
= *p
) != NULL
)
5282 if (&eh
->elf
== htab
->elf
.hgot
)
5284 else if (htab
->elf
.hgot
== NULL
5285 && strcmp (eh
->elf
.root
.root
.string
, ".TOC.") == 0)
5286 htab
->elf
.hgot
= &eh
->elf
;
5287 else if (abiversion (ibfd
) <= 1)
5289 htab
->need_func_desc_adj
= 1;
5290 if (!add_symbol_adjust (eh
, info
))
5293 p
= &eh
->u
.next_dot_sym
;
5298 /* Undo hash table changes when an --as-needed input file is determined
5299 not to be needed. */
5302 ppc64_elf_notice_as_needed (bfd
*ibfd
,
5303 struct bfd_link_info
*info
,
5304 enum notice_asneeded_action act
)
5306 if (act
== notice_not_needed
)
5308 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
5313 htab
->dot_syms
= NULL
;
5315 return _bfd_elf_notice_as_needed (ibfd
, info
, act
);
5318 /* If --just-symbols against a final linked binary, then assume we need
5319 toc adjusting stubs when calling functions defined there. */
5322 ppc64_elf_link_just_syms (asection
*sec
, struct bfd_link_info
*info
)
5324 if ((sec
->flags
& SEC_CODE
) != 0
5325 && (sec
->owner
->flags
& (EXEC_P
| DYNAMIC
)) != 0
5326 && is_ppc64_elf (sec
->owner
))
5328 if (abiversion (sec
->owner
) >= 2
5329 || bfd_get_section_by_name (sec
->owner
, ".opd") != NULL
)
5330 sec
->has_toc_reloc
= 1;
5332 _bfd_elf_link_just_syms (sec
, info
);
5335 static struct plt_entry
**
5336 update_local_sym_info (bfd
*abfd
, Elf_Internal_Shdr
*symtab_hdr
,
5337 unsigned long r_symndx
, bfd_vma r_addend
, int tls_type
)
5339 struct got_entry
**local_got_ents
= elf_local_got_ents (abfd
);
5340 struct plt_entry
**local_plt
;
5341 unsigned char *local_got_tls_masks
;
5343 if (local_got_ents
== NULL
)
5345 bfd_size_type size
= symtab_hdr
->sh_info
;
5347 size
*= (sizeof (*local_got_ents
)
5348 + sizeof (*local_plt
)
5349 + sizeof (*local_got_tls_masks
));
5350 local_got_ents
= bfd_zalloc (abfd
, size
);
5351 if (local_got_ents
== NULL
)
5353 elf_local_got_ents (abfd
) = local_got_ents
;
5356 if ((tls_type
& (PLT_IFUNC
| TLS_EXPLICIT
)) == 0)
5358 struct got_entry
*ent
;
5360 for (ent
= local_got_ents
[r_symndx
]; ent
!= NULL
; ent
= ent
->next
)
5361 if (ent
->addend
== r_addend
5362 && ent
->owner
== abfd
5363 && ent
->tls_type
== tls_type
)
5367 bfd_size_type amt
= sizeof (*ent
);
5368 ent
= bfd_alloc (abfd
, amt
);
5371 ent
->next
= local_got_ents
[r_symndx
];
5372 ent
->addend
= r_addend
;
5374 ent
->tls_type
= tls_type
;
5375 ent
->is_indirect
= FALSE
;
5376 ent
->got
.refcount
= 0;
5377 local_got_ents
[r_symndx
] = ent
;
5379 ent
->got
.refcount
+= 1;
5382 local_plt
= (struct plt_entry
**) (local_got_ents
+ symtab_hdr
->sh_info
);
5383 local_got_tls_masks
= (unsigned char *) (local_plt
+ symtab_hdr
->sh_info
);
5384 local_got_tls_masks
[r_symndx
] |= tls_type
;
5386 return local_plt
+ r_symndx
;
5390 update_plt_info (bfd
*abfd
, struct plt_entry
**plist
, bfd_vma addend
)
5392 struct plt_entry
*ent
;
5394 for (ent
= *plist
; ent
!= NULL
; ent
= ent
->next
)
5395 if (ent
->addend
== addend
)
5399 bfd_size_type amt
= sizeof (*ent
);
5400 ent
= bfd_alloc (abfd
, amt
);
5404 ent
->addend
= addend
;
5405 ent
->plt
.refcount
= 0;
5408 ent
->plt
.refcount
+= 1;
5413 is_branch_reloc (enum elf_ppc64_reloc_type r_type
)
5415 return (r_type
== R_PPC64_REL24
5416 || r_type
== R_PPC64_REL14
5417 || r_type
== R_PPC64_REL14_BRTAKEN
5418 || r_type
== R_PPC64_REL14_BRNTAKEN
5419 || r_type
== R_PPC64_ADDR24
5420 || r_type
== R_PPC64_ADDR14
5421 || r_type
== R_PPC64_ADDR14_BRTAKEN
5422 || r_type
== R_PPC64_ADDR14_BRNTAKEN
);
5425 /* Look through the relocs for a section during the first phase, and
5426 calculate needed space in the global offset table, procedure
5427 linkage table, and dynamic reloc sections. */
5430 ppc64_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
5431 asection
*sec
, const Elf_Internal_Rela
*relocs
)
5433 struct ppc_link_hash_table
*htab
;
5434 Elf_Internal_Shdr
*symtab_hdr
;
5435 struct elf_link_hash_entry
**sym_hashes
;
5436 const Elf_Internal_Rela
*rel
;
5437 const Elf_Internal_Rela
*rel_end
;
5439 struct elf_link_hash_entry
*tga
, *dottga
;
5442 if (bfd_link_relocatable (info
))
5445 /* Don't do anything special with non-loaded, non-alloced sections.
5446 In particular, any relocs in such sections should not affect GOT
5447 and PLT reference counting (ie. we don't allow them to create GOT
5448 or PLT entries), there's no possibility or desire to optimize TLS
5449 relocs, and there's not much point in propagating relocs to shared
5450 libs that the dynamic linker won't relocate. */
5451 if ((sec
->flags
& SEC_ALLOC
) == 0)
5454 BFD_ASSERT (is_ppc64_elf (abfd
));
5456 htab
= ppc_hash_table (info
);
5460 tga
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr",
5461 FALSE
, FALSE
, TRUE
);
5462 dottga
= elf_link_hash_lookup (&htab
->elf
, ".__tls_get_addr",
5463 FALSE
, FALSE
, TRUE
);
5464 symtab_hdr
= &elf_symtab_hdr (abfd
);
5465 sym_hashes
= elf_sym_hashes (abfd
);
5467 is_opd
= ppc64_elf_section_data (sec
)->sec_type
== sec_opd
;
5468 rel_end
= relocs
+ sec
->reloc_count
;
5469 for (rel
= relocs
; rel
< rel_end
; rel
++)
5471 unsigned long r_symndx
;
5472 struct elf_link_hash_entry
*h
;
5473 enum elf_ppc64_reloc_type r_type
;
5475 struct _ppc64_elf_section_data
*ppc64_sec
;
5476 struct plt_entry
**ifunc
, **plt_list
;
5478 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5479 if (r_symndx
< symtab_hdr
->sh_info
)
5483 struct ppc_link_hash_entry
*eh
;
5485 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5486 h
= elf_follow_link (h
);
5487 eh
= (struct ppc_link_hash_entry
*) h
;
5489 /* PR15323, ref flags aren't set for references in the same
5491 h
->root
.non_ir_ref_regular
= 1;
5492 if (eh
->is_func
&& eh
->oh
!= NULL
)
5493 eh
->oh
->elf
.root
.non_ir_ref_regular
= 1;
5495 if (h
== htab
->elf
.hgot
)
5496 sec
->has_toc_reloc
= 1;
5503 if (h
->type
== STT_GNU_IFUNC
)
5506 ifunc
= &h
->plt
.plist
;
5511 Elf_Internal_Sym
*isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
5516 if (ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
)
5518 ifunc
= update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
5519 rel
->r_addend
, PLT_IFUNC
);
5525 r_type
= ELF64_R_TYPE (rel
->r_info
);
5530 /* These special tls relocs tie a call to __tls_get_addr with
5531 its parameter symbol. */
5534 case R_PPC64_GOT_TLSLD16
:
5535 case R_PPC64_GOT_TLSLD16_LO
:
5536 case R_PPC64_GOT_TLSLD16_HI
:
5537 case R_PPC64_GOT_TLSLD16_HA
:
5538 tls_type
= TLS_TLS
| TLS_LD
;
5541 case R_PPC64_GOT_TLSGD16
:
5542 case R_PPC64_GOT_TLSGD16_LO
:
5543 case R_PPC64_GOT_TLSGD16_HI
:
5544 case R_PPC64_GOT_TLSGD16_HA
:
5545 tls_type
= TLS_TLS
| TLS_GD
;
5548 case R_PPC64_GOT_TPREL16_DS
:
5549 case R_PPC64_GOT_TPREL16_LO_DS
:
5550 case R_PPC64_GOT_TPREL16_HI
:
5551 case R_PPC64_GOT_TPREL16_HA
:
5552 if (bfd_link_dll (info
))
5553 info
->flags
|= DF_STATIC_TLS
;
5554 tls_type
= TLS_TLS
| TLS_TPREL
;
5557 case R_PPC64_GOT_DTPREL16_DS
:
5558 case R_PPC64_GOT_DTPREL16_LO_DS
:
5559 case R_PPC64_GOT_DTPREL16_HI
:
5560 case R_PPC64_GOT_DTPREL16_HA
:
5561 tls_type
= TLS_TLS
| TLS_DTPREL
;
5563 sec
->has_tls_reloc
= 1;
5567 case R_PPC64_GOT16_DS
:
5568 case R_PPC64_GOT16_HA
:
5569 case R_PPC64_GOT16_HI
:
5570 case R_PPC64_GOT16_LO
:
5571 case R_PPC64_GOT16_LO_DS
:
5572 /* This symbol requires a global offset table entry. */
5573 sec
->has_toc_reloc
= 1;
5574 if (r_type
== R_PPC64_GOT_TLSLD16
5575 || r_type
== R_PPC64_GOT_TLSGD16
5576 || r_type
== R_PPC64_GOT_TPREL16_DS
5577 || r_type
== R_PPC64_GOT_DTPREL16_DS
5578 || r_type
== R_PPC64_GOT16
5579 || r_type
== R_PPC64_GOT16_DS
)
5581 htab
->do_multi_toc
= 1;
5582 ppc64_elf_tdata (abfd
)->has_small_toc_reloc
= 1;
5585 if (ppc64_elf_tdata (abfd
)->got
== NULL
5586 && !create_got_section (abfd
, info
))
5591 struct ppc_link_hash_entry
*eh
;
5592 struct got_entry
*ent
;
5594 eh
= (struct ppc_link_hash_entry
*) h
;
5595 for (ent
= eh
->elf
.got
.glist
; ent
!= NULL
; ent
= ent
->next
)
5596 if (ent
->addend
== rel
->r_addend
5597 && ent
->owner
== abfd
5598 && ent
->tls_type
== tls_type
)
5602 bfd_size_type amt
= sizeof (*ent
);
5603 ent
= bfd_alloc (abfd
, amt
);
5606 ent
->next
= eh
->elf
.got
.glist
;
5607 ent
->addend
= rel
->r_addend
;
5609 ent
->tls_type
= tls_type
;
5610 ent
->is_indirect
= FALSE
;
5611 ent
->got
.refcount
= 0;
5612 eh
->elf
.got
.glist
= ent
;
5614 ent
->got
.refcount
+= 1;
5615 eh
->tls_mask
|= tls_type
;
5618 /* This is a global offset table entry for a local symbol. */
5619 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
5620 rel
->r_addend
, tls_type
))
5623 /* We may also need a plt entry if the symbol turns out to be
5625 if (h
!= NULL
&& !bfd_link_pic (info
) && abiversion (abfd
) != 1)
5627 if (!update_plt_info (abfd
, &h
->plt
.plist
, rel
->r_addend
))
5632 case R_PPC64_PLT16_HA
:
5633 case R_PPC64_PLT16_HI
:
5634 case R_PPC64_PLT16_LO
:
5637 /* This symbol requires a procedure linkage table entry. */
5642 if (h
->root
.root
.string
[0] == '.'
5643 && h
->root
.root
.string
[1] != '\0')
5644 ((struct ppc_link_hash_entry
*) h
)->is_func
= 1;
5645 plt_list
= &h
->plt
.plist
;
5647 if (plt_list
== NULL
)
5649 /* It does not make sense to have a procedure linkage
5650 table entry for a non-ifunc local symbol. */
5651 info
->callbacks
->einfo
5652 /* xgettext:c-format */
5653 (_("%H: %s reloc against local symbol\n"),
5654 abfd
, sec
, rel
->r_offset
,
5655 ppc64_elf_howto_table
[r_type
]->name
);
5656 bfd_set_error (bfd_error_bad_value
);
5659 if (!update_plt_info (abfd
, plt_list
, rel
->r_addend
))
5663 /* The following relocations don't need to propagate the
5664 relocation if linking a shared object since they are
5665 section relative. */
5666 case R_PPC64_SECTOFF
:
5667 case R_PPC64_SECTOFF_LO
:
5668 case R_PPC64_SECTOFF_HI
:
5669 case R_PPC64_SECTOFF_HA
:
5670 case R_PPC64_SECTOFF_DS
:
5671 case R_PPC64_SECTOFF_LO_DS
:
5672 case R_PPC64_DTPREL16
:
5673 case R_PPC64_DTPREL16_LO
:
5674 case R_PPC64_DTPREL16_HI
:
5675 case R_PPC64_DTPREL16_HA
:
5676 case R_PPC64_DTPREL16_DS
:
5677 case R_PPC64_DTPREL16_LO_DS
:
5678 case R_PPC64_DTPREL16_HIGH
:
5679 case R_PPC64_DTPREL16_HIGHA
:
5680 case R_PPC64_DTPREL16_HIGHER
:
5681 case R_PPC64_DTPREL16_HIGHERA
:
5682 case R_PPC64_DTPREL16_HIGHEST
:
5683 case R_PPC64_DTPREL16_HIGHESTA
:
5688 case R_PPC64_REL16_LO
:
5689 case R_PPC64_REL16_HI
:
5690 case R_PPC64_REL16_HA
:
5691 case R_PPC64_REL16DX_HA
:
5694 /* Not supported as a dynamic relocation. */
5695 case R_PPC64_ADDR64_LOCAL
:
5696 if (bfd_link_pic (info
))
5698 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
5700 /* xgettext:c-format */
5701 info
->callbacks
->einfo (_("%H: %s reloc unsupported "
5702 "in shared libraries and PIEs.\n"),
5703 abfd
, sec
, rel
->r_offset
,
5704 ppc64_elf_howto_table
[r_type
]->name
);
5705 bfd_set_error (bfd_error_bad_value
);
5711 case R_PPC64_TOC16_DS
:
5712 htab
->do_multi_toc
= 1;
5713 ppc64_elf_tdata (abfd
)->has_small_toc_reloc
= 1;
5715 case R_PPC64_TOC16_LO
:
5716 case R_PPC64_TOC16_HI
:
5717 case R_PPC64_TOC16_HA
:
5718 case R_PPC64_TOC16_LO_DS
:
5719 sec
->has_toc_reloc
= 1;
5726 /* This relocation describes the C++ object vtable hierarchy.
5727 Reconstruct it for later use during GC. */
5728 case R_PPC64_GNU_VTINHERIT
:
5729 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
5733 /* This relocation describes which C++ vtable entries are actually
5734 used. Record for later use during GC. */
5735 case R_PPC64_GNU_VTENTRY
:
5736 BFD_ASSERT (h
!= NULL
);
5738 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
5743 case R_PPC64_REL14_BRTAKEN
:
5744 case R_PPC64_REL14_BRNTAKEN
:
5746 asection
*dest
= NULL
;
5748 /* Heuristic: If jumping outside our section, chances are
5749 we are going to need a stub. */
5752 /* If the sym is weak it may be overridden later, so
5753 don't assume we know where a weak sym lives. */
5754 if (h
->root
.type
== bfd_link_hash_defined
)
5755 dest
= h
->root
.u
.def
.section
;
5759 Elf_Internal_Sym
*isym
;
5761 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
5766 dest
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
5770 ppc64_elf_section_data (sec
)->has_14bit_branch
= 1;
5779 if (h
->root
.root
.string
[0] == '.'
5780 && h
->root
.root
.string
[1] != '\0')
5781 ((struct ppc_link_hash_entry
*) h
)->is_func
= 1;
5783 if (h
== tga
|| h
== dottga
)
5785 sec
->has_tls_reloc
= 1;
5787 && (ELF64_R_TYPE (rel
[-1].r_info
) == R_PPC64_TLSGD
5788 || ELF64_R_TYPE (rel
[-1].r_info
) == R_PPC64_TLSLD
))
5789 /* We have a new-style __tls_get_addr call with
5793 /* Mark this section as having an old-style call. */
5794 sec
->has_tls_get_addr_call
= 1;
5796 plt_list
= &h
->plt
.plist
;
5799 /* We may need a .plt entry if the function this reloc
5800 refers to is in a shared lib. */
5802 && !update_plt_info (abfd
, plt_list
, rel
->r_addend
))
5806 case R_PPC64_ADDR14
:
5807 case R_PPC64_ADDR14_BRNTAKEN
:
5808 case R_PPC64_ADDR14_BRTAKEN
:
5809 case R_PPC64_ADDR24
:
5812 case R_PPC64_TPREL64
:
5813 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_TPREL
;
5814 if (bfd_link_dll (info
))
5815 info
->flags
|= DF_STATIC_TLS
;
5818 case R_PPC64_DTPMOD64
:
5819 if (rel
+ 1 < rel_end
5820 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
5821 && rel
[1].r_offset
== rel
->r_offset
+ 8)
5822 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_GD
;
5824 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_LD
;
5827 case R_PPC64_DTPREL64
:
5828 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_DTPREL
;
5830 && rel
[-1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPMOD64
)
5831 && rel
[-1].r_offset
== rel
->r_offset
- 8)
5832 /* This is the second reloc of a dtpmod, dtprel pair.
5833 Don't mark with TLS_DTPREL. */
5837 sec
->has_tls_reloc
= 1;
5840 struct ppc_link_hash_entry
*eh
;
5841 eh
= (struct ppc_link_hash_entry
*) h
;
5842 eh
->tls_mask
|= tls_type
;
5845 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
5846 rel
->r_addend
, tls_type
))
5849 ppc64_sec
= ppc64_elf_section_data (sec
);
5850 if (ppc64_sec
->sec_type
!= sec_toc
)
5854 /* One extra to simplify get_tls_mask. */
5855 amt
= sec
->size
* sizeof (unsigned) / 8 + sizeof (unsigned);
5856 ppc64_sec
->u
.toc
.symndx
= bfd_zalloc (abfd
, amt
);
5857 if (ppc64_sec
->u
.toc
.symndx
== NULL
)
5859 amt
= sec
->size
* sizeof (bfd_vma
) / 8;
5860 ppc64_sec
->u
.toc
.add
= bfd_zalloc (abfd
, amt
);
5861 if (ppc64_sec
->u
.toc
.add
== NULL
)
5863 BFD_ASSERT (ppc64_sec
->sec_type
== sec_normal
);
5864 ppc64_sec
->sec_type
= sec_toc
;
5866 BFD_ASSERT (rel
->r_offset
% 8 == 0);
5867 ppc64_sec
->u
.toc
.symndx
[rel
->r_offset
/ 8] = r_symndx
;
5868 ppc64_sec
->u
.toc
.add
[rel
->r_offset
/ 8] = rel
->r_addend
;
5870 /* Mark the second slot of a GD or LD entry.
5871 -1 to indicate GD and -2 to indicate LD. */
5872 if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_GD
))
5873 ppc64_sec
->u
.toc
.symndx
[rel
->r_offset
/ 8 + 1] = -1;
5874 else if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_LD
))
5875 ppc64_sec
->u
.toc
.symndx
[rel
->r_offset
/ 8 + 1] = -2;
5878 case R_PPC64_TPREL16
:
5879 case R_PPC64_TPREL16_LO
:
5880 case R_PPC64_TPREL16_HI
:
5881 case R_PPC64_TPREL16_HA
:
5882 case R_PPC64_TPREL16_DS
:
5883 case R_PPC64_TPREL16_LO_DS
:
5884 case R_PPC64_TPREL16_HIGH
:
5885 case R_PPC64_TPREL16_HIGHA
:
5886 case R_PPC64_TPREL16_HIGHER
:
5887 case R_PPC64_TPREL16_HIGHERA
:
5888 case R_PPC64_TPREL16_HIGHEST
:
5889 case R_PPC64_TPREL16_HIGHESTA
:
5890 if (bfd_link_dll (info
))
5891 info
->flags
|= DF_STATIC_TLS
;
5894 case R_PPC64_ADDR64
:
5896 && rel
+ 1 < rel_end
5897 && ELF64_R_TYPE ((rel
+ 1)->r_info
) == R_PPC64_TOC
)
5900 ((struct ppc_link_hash_entry
*) h
)->is_func
= 1;
5904 case R_PPC64_ADDR16
:
5905 case R_PPC64_ADDR16_DS
:
5906 case R_PPC64_ADDR16_HA
:
5907 case R_PPC64_ADDR16_HI
:
5908 case R_PPC64_ADDR16_HIGH
:
5909 case R_PPC64_ADDR16_HIGHA
:
5910 case R_PPC64_ADDR16_HIGHER
:
5911 case R_PPC64_ADDR16_HIGHERA
:
5912 case R_PPC64_ADDR16_HIGHEST
:
5913 case R_PPC64_ADDR16_HIGHESTA
:
5914 case R_PPC64_ADDR16_LO
:
5915 case R_PPC64_ADDR16_LO_DS
:
5916 if (h
!= NULL
&& !bfd_link_pic (info
) && abiversion (abfd
) != 1
5917 && rel
->r_addend
== 0)
5919 /* We may need a .plt entry if this reloc refers to a
5920 function in a shared lib. */
5921 if (!update_plt_info (abfd
, &h
->plt
.plist
, rel
->r_addend
))
5923 h
->pointer_equality_needed
= 1;
5930 case R_PPC64_ADDR32
:
5931 case R_PPC64_UADDR16
:
5932 case R_PPC64_UADDR32
:
5933 case R_PPC64_UADDR64
:
5935 if (h
!= NULL
&& !bfd_link_pic (info
))
5936 /* We may need a copy reloc. */
5939 /* Don't propagate .opd relocs. */
5940 if (NO_OPD_RELOCS
&& is_opd
)
5943 /* If we are creating a shared library, and this is a reloc
5944 against a global symbol, or a non PC relative reloc
5945 against a local symbol, then we need to copy the reloc
5946 into the shared library. However, if we are linking with
5947 -Bsymbolic, we do not need to copy a reloc against a
5948 global symbol which is defined in an object we are
5949 including in the link (i.e., DEF_REGULAR is set). At
5950 this point we have not seen all the input files, so it is
5951 possible that DEF_REGULAR is not set now but will be set
5952 later (it is never cleared). In case of a weak definition,
5953 DEF_REGULAR may be cleared later by a strong definition in
5954 a shared library. We account for that possibility below by
5955 storing information in the dyn_relocs field of the hash
5956 table entry. A similar situation occurs when creating
5957 shared libraries and symbol visibility changes render the
5960 If on the other hand, we are creating an executable, we
5961 may need to keep relocations for symbols satisfied by a
5962 dynamic library if we manage to avoid copy relocs for the
5965 if ((bfd_link_pic (info
)
5966 && (must_be_dyn_reloc (info
, r_type
)
5968 && (!SYMBOLIC_BIND (info
, h
)
5969 || h
->root
.type
== bfd_link_hash_defweak
5970 || !h
->def_regular
))))
5971 || (ELIMINATE_COPY_RELOCS
5972 && !bfd_link_pic (info
)
5974 && (h
->root
.type
== bfd_link_hash_defweak
5975 || !h
->def_regular
))
5976 || (!bfd_link_pic (info
)
5979 /* We must copy these reloc types into the output file.
5980 Create a reloc section in dynobj and make room for
5984 sreloc
= _bfd_elf_make_dynamic_reloc_section
5985 (sec
, htab
->elf
.dynobj
, 3, abfd
, /*rela?*/ TRUE
);
5991 /* If this is a global symbol, we count the number of
5992 relocations we need for this symbol. */
5995 struct elf_dyn_relocs
*p
;
5996 struct elf_dyn_relocs
**head
;
5998 head
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
6000 if (p
== NULL
|| p
->sec
!= sec
)
6002 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
6012 if (!must_be_dyn_reloc (info
, r_type
))
6017 /* Track dynamic relocs needed for local syms too.
6018 We really need local syms available to do this
6020 struct ppc_dyn_relocs
*p
;
6021 struct ppc_dyn_relocs
**head
;
6022 bfd_boolean is_ifunc
;
6025 Elf_Internal_Sym
*isym
;
6027 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
6032 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6036 vpp
= &elf_section_data (s
)->local_dynrel
;
6037 head
= (struct ppc_dyn_relocs
**) vpp
;
6038 is_ifunc
= ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
;
6040 if (p
!= NULL
&& p
->sec
== sec
&& p
->ifunc
!= is_ifunc
)
6042 if (p
== NULL
|| p
->sec
!= sec
|| p
->ifunc
!= is_ifunc
)
6044 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
6050 p
->ifunc
= is_ifunc
;
6066 /* Merge backend specific data from an object file to the output
6067 object file when linking. */
6070 ppc64_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
6072 bfd
*obfd
= info
->output_bfd
;
6073 unsigned long iflags
, oflags
;
6075 if ((ibfd
->flags
& BFD_LINKER_CREATED
) != 0)
6078 if (!is_ppc64_elf (ibfd
) || !is_ppc64_elf (obfd
))
6081 if (!_bfd_generic_verify_endian_match (ibfd
, info
))
6084 iflags
= elf_elfheader (ibfd
)->e_flags
;
6085 oflags
= elf_elfheader (obfd
)->e_flags
;
6087 if (iflags
& ~EF_PPC64_ABI
)
6090 /* xgettext:c-format */
6091 (_("%B uses unknown e_flags 0x%lx"), ibfd
, iflags
);
6092 bfd_set_error (bfd_error_bad_value
);
6095 else if (iflags
!= oflags
&& iflags
!= 0)
6098 /* xgettext:c-format */
6099 (_("%B: ABI version %ld is not compatible with ABI version %ld output"),
6100 ibfd
, iflags
, oflags
);
6101 bfd_set_error (bfd_error_bad_value
);
6105 _bfd_elf_ppc_merge_fp_attributes (ibfd
, info
);
6107 /* Merge Tag_compatibility attributes and any common GNU ones. */
6108 _bfd_elf_merge_object_attributes (ibfd
, info
);
6114 ppc64_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6116 /* Print normal ELF private data. */
6117 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6119 if (elf_elfheader (abfd
)->e_flags
!= 0)
6123 fprintf (file
, _("private flags = 0x%lx:"),
6124 elf_elfheader (abfd
)->e_flags
);
6126 if ((elf_elfheader (abfd
)->e_flags
& EF_PPC64_ABI
) != 0)
6127 fprintf (file
, _(" [abiv%ld]"),
6128 elf_elfheader (abfd
)->e_flags
& EF_PPC64_ABI
);
6135 /* OFFSET in OPD_SEC specifies a function descriptor. Return the address
6136 of the code entry point, and its section, which must be in the same
6137 object as OPD_SEC. Returns (bfd_vma) -1 on error. */
6140 opd_entry_value (asection
*opd_sec
,
6142 asection
**code_sec
,
6144 bfd_boolean in_code_sec
)
6146 bfd
*opd_bfd
= opd_sec
->owner
;
6147 Elf_Internal_Rela
*relocs
;
6148 Elf_Internal_Rela
*lo
, *hi
, *look
;
6151 /* No relocs implies we are linking a --just-symbols object, or looking
6152 at a final linked executable with addr2line or somesuch. */
6153 if (opd_sec
->reloc_count
== 0)
6155 bfd_byte
*contents
= ppc64_elf_tdata (opd_bfd
)->opd
.contents
;
6157 if (contents
== NULL
)
6159 if (!bfd_malloc_and_get_section (opd_bfd
, opd_sec
, &contents
))
6160 return (bfd_vma
) -1;
6161 ppc64_elf_tdata (opd_bfd
)->opd
.contents
= contents
;
6164 /* PR 17512: file: 64b9dfbb. */
6165 if (offset
+ 7 >= opd_sec
->size
|| offset
+ 7 < offset
)
6166 return (bfd_vma
) -1;
6168 val
= bfd_get_64 (opd_bfd
, contents
+ offset
);
6169 if (code_sec
!= NULL
)
6171 asection
*sec
, *likely
= NULL
;
6177 && val
< sec
->vma
+ sec
->size
)
6183 for (sec
= opd_bfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
6185 && (sec
->flags
& SEC_LOAD
) != 0
6186 && (sec
->flags
& SEC_ALLOC
) != 0)
6191 if (code_off
!= NULL
)
6192 *code_off
= val
- likely
->vma
;
6198 BFD_ASSERT (is_ppc64_elf (opd_bfd
));
6200 relocs
= ppc64_elf_tdata (opd_bfd
)->opd
.relocs
;
6202 relocs
= _bfd_elf_link_read_relocs (opd_bfd
, opd_sec
, NULL
, NULL
, TRUE
);
6203 /* PR 17512: file: df8e1fd6. */
6205 return (bfd_vma
) -1;
6207 /* Go find the opd reloc at the sym address. */
6209 hi
= lo
+ opd_sec
->reloc_count
- 1; /* ignore last reloc */
6213 look
= lo
+ (hi
- lo
) / 2;
6214 if (look
->r_offset
< offset
)
6216 else if (look
->r_offset
> offset
)
6220 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (opd_bfd
);
6222 if (ELF64_R_TYPE (look
->r_info
) == R_PPC64_ADDR64
6223 && ELF64_R_TYPE ((look
+ 1)->r_info
) == R_PPC64_TOC
)
6225 unsigned long symndx
= ELF64_R_SYM (look
->r_info
);
6226 asection
*sec
= NULL
;
6228 if (symndx
>= symtab_hdr
->sh_info
6229 && elf_sym_hashes (opd_bfd
) != NULL
)
6231 struct elf_link_hash_entry
**sym_hashes
;
6232 struct elf_link_hash_entry
*rh
;
6234 sym_hashes
= elf_sym_hashes (opd_bfd
);
6235 rh
= sym_hashes
[symndx
- symtab_hdr
->sh_info
];
6238 rh
= elf_follow_link (rh
);
6239 if (rh
->root
.type
!= bfd_link_hash_defined
6240 && rh
->root
.type
!= bfd_link_hash_defweak
)
6242 if (rh
->root
.u
.def
.section
->owner
== opd_bfd
)
6244 val
= rh
->root
.u
.def
.value
;
6245 sec
= rh
->root
.u
.def
.section
;
6252 Elf_Internal_Sym
*sym
;
6254 if (symndx
< symtab_hdr
->sh_info
)
6256 sym
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
6259 size_t symcnt
= symtab_hdr
->sh_info
;
6260 sym
= bfd_elf_get_elf_syms (opd_bfd
, symtab_hdr
,
6265 symtab_hdr
->contents
= (bfd_byte
*) sym
;
6271 sym
= bfd_elf_get_elf_syms (opd_bfd
, symtab_hdr
,
6277 sec
= bfd_section_from_elf_index (opd_bfd
, sym
->st_shndx
);
6280 BFD_ASSERT ((sec
->flags
& SEC_MERGE
) == 0);
6281 val
= sym
->st_value
;
6284 val
+= look
->r_addend
;
6285 if (code_off
!= NULL
)
6287 if (code_sec
!= NULL
)
6289 if (in_code_sec
&& *code_sec
!= sec
)
6294 if (sec
->output_section
!= NULL
)
6295 val
+= sec
->output_section
->vma
+ sec
->output_offset
;
6304 /* If the ELF symbol SYM might be a function in SEC, return the
6305 function size and set *CODE_OFF to the function's entry point,
6306 otherwise return zero. */
6308 static bfd_size_type
6309 ppc64_elf_maybe_function_sym (const asymbol
*sym
, asection
*sec
,
6314 if ((sym
->flags
& (BSF_SECTION_SYM
| BSF_FILE
| BSF_OBJECT
6315 | BSF_THREAD_LOCAL
| BSF_RELC
| BSF_SRELC
)) != 0)
6319 if (!(sym
->flags
& BSF_SYNTHETIC
))
6320 size
= ((elf_symbol_type
*) sym
)->internal_elf_sym
.st_size
;
6322 if (strcmp (sym
->section
->name
, ".opd") == 0)
6324 struct _opd_sec_data
*opd
= get_opd_info (sym
->section
);
6325 bfd_vma symval
= sym
->value
;
6328 && opd
->adjust
!= NULL
6329 && elf_section_data (sym
->section
)->relocs
!= NULL
)
6331 /* opd_entry_value will use cached relocs that have been
6332 adjusted, but with raw symbols. That means both local
6333 and global symbols need adjusting. */
6334 long adjust
= opd
->adjust
[OPD_NDX (symval
)];
6340 if (opd_entry_value (sym
->section
, symval
,
6341 &sec
, code_off
, TRUE
) == (bfd_vma
) -1)
6343 /* An old ABI binary with dot-syms has a size of 24 on the .opd
6344 symbol. This size has nothing to do with the code size of the
6345 function, which is what we're supposed to return, but the
6346 code size isn't available without looking up the dot-sym.
6347 However, doing that would be a waste of time particularly
6348 since elf_find_function will look at the dot-sym anyway.
6349 Now, elf_find_function will keep the largest size of any
6350 function sym found at the code address of interest, so return
6351 1 here to avoid it incorrectly caching a larger function size
6352 for a small function. This does mean we return the wrong
6353 size for a new-ABI function of size 24, but all that does is
6354 disable caching for such functions. */
6360 if (sym
->section
!= sec
)
6362 *code_off
= sym
->value
;
6369 /* Return true if symbol is a strong function defined in an ELFv2
6370 object with st_other localentry bits of zero, ie. its local entry
6371 point coincides with its global entry point. */
6374 is_elfv2_localentry0 (struct elf_link_hash_entry
*h
)
6377 && h
->type
== STT_FUNC
6378 && h
->root
.type
== bfd_link_hash_defined
6379 && (STO_PPC64_LOCAL_MASK
& h
->other
) == 0
6380 && !((struct ppc_link_hash_entry
*) h
)->non_zero_localentry
6381 && is_ppc64_elf (h
->root
.u
.def
.section
->owner
)
6382 && abiversion (h
->root
.u
.def
.section
->owner
) >= 2);
6385 /* Return true if symbol is defined in a regular object file. */
6388 is_static_defined (struct elf_link_hash_entry
*h
)
6390 return ((h
->root
.type
== bfd_link_hash_defined
6391 || h
->root
.type
== bfd_link_hash_defweak
)
6392 && h
->root
.u
.def
.section
!= NULL
6393 && h
->root
.u
.def
.section
->output_section
!= NULL
);
6396 /* If FDH is a function descriptor symbol, return the associated code
6397 entry symbol if it is defined. Return NULL otherwise. */
6399 static struct ppc_link_hash_entry
*
6400 defined_code_entry (struct ppc_link_hash_entry
*fdh
)
6402 if (fdh
->is_func_descriptor
)
6404 struct ppc_link_hash_entry
*fh
= ppc_follow_link (fdh
->oh
);
6405 if (fh
->elf
.root
.type
== bfd_link_hash_defined
6406 || fh
->elf
.root
.type
== bfd_link_hash_defweak
)
6412 /* If FH is a function code entry symbol, return the associated
6413 function descriptor symbol if it is defined. Return NULL otherwise. */
6415 static struct ppc_link_hash_entry
*
6416 defined_func_desc (struct ppc_link_hash_entry
*fh
)
6419 && fh
->oh
->is_func_descriptor
)
6421 struct ppc_link_hash_entry
*fdh
= ppc_follow_link (fh
->oh
);
6422 if (fdh
->elf
.root
.type
== bfd_link_hash_defined
6423 || fdh
->elf
.root
.type
== bfd_link_hash_defweak
)
6429 static bfd_boolean
func_desc_adjust (struct elf_link_hash_entry
*, void *);
6431 /* Garbage collect sections, after first dealing with dot-symbols. */
6434 ppc64_elf_gc_sections (bfd
*abfd
, struct bfd_link_info
*info
)
6436 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6438 if (htab
!= NULL
&& htab
->need_func_desc_adj
)
6440 elf_link_hash_traverse (&htab
->elf
, func_desc_adjust
, info
);
6441 htab
->need_func_desc_adj
= 0;
6443 return bfd_elf_gc_sections (abfd
, info
);
6446 /* Mark all our entry sym sections, both opd and code section. */
6449 ppc64_elf_gc_keep (struct bfd_link_info
*info
)
6451 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6452 struct bfd_sym_chain
*sym
;
6457 for (sym
= info
->gc_sym_list
; sym
!= NULL
; sym
= sym
->next
)
6459 struct ppc_link_hash_entry
*eh
, *fh
;
6462 eh
= (struct ppc_link_hash_entry
*)
6463 elf_link_hash_lookup (&htab
->elf
, sym
->name
, FALSE
, FALSE
, TRUE
);
6466 if (eh
->elf
.root
.type
!= bfd_link_hash_defined
6467 && eh
->elf
.root
.type
!= bfd_link_hash_defweak
)
6470 fh
= defined_code_entry (eh
);
6473 sec
= fh
->elf
.root
.u
.def
.section
;
6474 sec
->flags
|= SEC_KEEP
;
6476 else if (get_opd_info (eh
->elf
.root
.u
.def
.section
) != NULL
6477 && opd_entry_value (eh
->elf
.root
.u
.def
.section
,
6478 eh
->elf
.root
.u
.def
.value
,
6479 &sec
, NULL
, FALSE
) != (bfd_vma
) -1)
6480 sec
->flags
|= SEC_KEEP
;
6482 sec
= eh
->elf
.root
.u
.def
.section
;
6483 sec
->flags
|= SEC_KEEP
;
6487 /* Mark sections containing dynamically referenced symbols. When
6488 building shared libraries, we must assume that any visible symbol is
6492 ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry
*h
, void *inf
)
6494 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
6495 struct ppc_link_hash_entry
*eh
= (struct ppc_link_hash_entry
*) h
;
6496 struct ppc_link_hash_entry
*fdh
;
6497 struct bfd_elf_dynamic_list
*d
= info
->dynamic_list
;
6499 /* Dynamic linking info is on the func descriptor sym. */
6500 fdh
= defined_func_desc (eh
);
6504 if ((eh
->elf
.root
.type
== bfd_link_hash_defined
6505 || eh
->elf
.root
.type
== bfd_link_hash_defweak
)
6506 && (eh
->elf
.ref_dynamic
6507 || ((eh
->elf
.def_regular
|| ELF_COMMON_DEF_P (&eh
->elf
))
6508 && ELF_ST_VISIBILITY (eh
->elf
.other
) != STV_INTERNAL
6509 && ELF_ST_VISIBILITY (eh
->elf
.other
) != STV_HIDDEN
6510 && (!bfd_link_executable (info
)
6511 || info
->gc_keep_exported
6512 || info
->export_dynamic
6515 && (*d
->match
) (&d
->head
, NULL
, eh
->elf
.root
.root
.string
)))
6516 && (eh
->elf
.versioned
>= versioned
6517 || !bfd_hide_sym_by_version (info
->version_info
,
6518 eh
->elf
.root
.root
.string
)))))
6521 struct ppc_link_hash_entry
*fh
;
6523 eh
->elf
.root
.u
.def
.section
->flags
|= SEC_KEEP
;
6525 /* Function descriptor syms cause the associated
6526 function code sym section to be marked. */
6527 fh
= defined_code_entry (eh
);
6530 code_sec
= fh
->elf
.root
.u
.def
.section
;
6531 code_sec
->flags
|= SEC_KEEP
;
6533 else if (get_opd_info (eh
->elf
.root
.u
.def
.section
) != NULL
6534 && opd_entry_value (eh
->elf
.root
.u
.def
.section
,
6535 eh
->elf
.root
.u
.def
.value
,
6536 &code_sec
, NULL
, FALSE
) != (bfd_vma
) -1)
6537 code_sec
->flags
|= SEC_KEEP
;
6543 /* Return the section that should be marked against GC for a given
6547 ppc64_elf_gc_mark_hook (asection
*sec
,
6548 struct bfd_link_info
*info
,
6549 Elf_Internal_Rela
*rel
,
6550 struct elf_link_hash_entry
*h
,
6551 Elf_Internal_Sym
*sym
)
6555 /* Syms return NULL if we're marking .opd, so we avoid marking all
6556 function sections, as all functions are referenced in .opd. */
6558 if (get_opd_info (sec
) != NULL
)
6563 enum elf_ppc64_reloc_type r_type
;
6564 struct ppc_link_hash_entry
*eh
, *fh
, *fdh
;
6566 r_type
= ELF64_R_TYPE (rel
->r_info
);
6569 case R_PPC64_GNU_VTINHERIT
:
6570 case R_PPC64_GNU_VTENTRY
:
6574 switch (h
->root
.type
)
6576 case bfd_link_hash_defined
:
6577 case bfd_link_hash_defweak
:
6578 eh
= (struct ppc_link_hash_entry
*) h
;
6579 fdh
= defined_func_desc (eh
);
6582 /* -mcall-aixdesc code references the dot-symbol on
6583 a call reloc. Mark the function descriptor too
6584 against garbage collection. */
6586 if (fdh
->elf
.u
.weakdef
!= NULL
)
6587 fdh
->elf
.u
.weakdef
->mark
= 1;
6591 /* Function descriptor syms cause the associated
6592 function code sym section to be marked. */
6593 fh
= defined_code_entry (eh
);
6596 /* They also mark their opd section. */
6597 eh
->elf
.root
.u
.def
.section
->gc_mark
= 1;
6599 rsec
= fh
->elf
.root
.u
.def
.section
;
6601 else if (get_opd_info (eh
->elf
.root
.u
.def
.section
) != NULL
6602 && opd_entry_value (eh
->elf
.root
.u
.def
.section
,
6603 eh
->elf
.root
.u
.def
.value
,
6604 &rsec
, NULL
, FALSE
) != (bfd_vma
) -1)
6605 eh
->elf
.root
.u
.def
.section
->gc_mark
= 1;
6607 rsec
= h
->root
.u
.def
.section
;
6610 case bfd_link_hash_common
:
6611 rsec
= h
->root
.u
.c
.p
->section
;
6615 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
6621 struct _opd_sec_data
*opd
;
6623 rsec
= bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
6624 opd
= get_opd_info (rsec
);
6625 if (opd
!= NULL
&& opd
->func_sec
!= NULL
)
6629 rsec
= opd
->func_sec
[OPD_NDX (sym
->st_value
+ rel
->r_addend
)];
6636 /* Update the .got, .plt. and dynamic reloc reference counts for the
6637 section being removed. */
6640 ppc64_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
,
6641 asection
*sec
, const Elf_Internal_Rela
*relocs
)
6643 struct ppc_link_hash_table
*htab
;
6644 Elf_Internal_Shdr
*symtab_hdr
;
6645 struct elf_link_hash_entry
**sym_hashes
;
6646 struct got_entry
**local_got_ents
;
6647 const Elf_Internal_Rela
*rel
, *relend
;
6649 if (bfd_link_relocatable (info
))
6652 if ((sec
->flags
& SEC_ALLOC
) == 0)
6655 elf_section_data (sec
)->local_dynrel
= NULL
;
6657 htab
= ppc_hash_table (info
);
6661 symtab_hdr
= &elf_symtab_hdr (abfd
);
6662 sym_hashes
= elf_sym_hashes (abfd
);
6663 local_got_ents
= elf_local_got_ents (abfd
);
6665 relend
= relocs
+ sec
->reloc_count
;
6666 for (rel
= relocs
; rel
< relend
; rel
++)
6668 unsigned long r_symndx
;
6669 enum elf_ppc64_reloc_type r_type
;
6670 struct elf_link_hash_entry
*h
= NULL
;
6671 struct plt_entry
**plt_list
= NULL
;
6672 unsigned char tls_type
= 0;
6674 r_symndx
= ELF64_R_SYM (rel
->r_info
);
6675 r_type
= ELF64_R_TYPE (rel
->r_info
);
6676 if (r_symndx
>= symtab_hdr
->sh_info
)
6678 struct ppc_link_hash_entry
*eh
;
6679 struct elf_dyn_relocs
**pp
;
6680 struct elf_dyn_relocs
*p
;
6682 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6683 h
= elf_follow_link (h
);
6684 eh
= (struct ppc_link_hash_entry
*) h
;
6686 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
6689 /* Everything must go for SEC. */
6697 case R_PPC64_GOT_TLSLD16
:
6698 case R_PPC64_GOT_TLSLD16_LO
:
6699 case R_PPC64_GOT_TLSLD16_HI
:
6700 case R_PPC64_GOT_TLSLD16_HA
:
6701 tls_type
= TLS_TLS
| TLS_LD
;
6704 case R_PPC64_GOT_TLSGD16
:
6705 case R_PPC64_GOT_TLSGD16_LO
:
6706 case R_PPC64_GOT_TLSGD16_HI
:
6707 case R_PPC64_GOT_TLSGD16_HA
:
6708 tls_type
= TLS_TLS
| TLS_GD
;
6711 case R_PPC64_GOT_TPREL16_DS
:
6712 case R_PPC64_GOT_TPREL16_LO_DS
:
6713 case R_PPC64_GOT_TPREL16_HI
:
6714 case R_PPC64_GOT_TPREL16_HA
:
6715 tls_type
= TLS_TLS
| TLS_TPREL
;
6718 case R_PPC64_GOT_DTPREL16_DS
:
6719 case R_PPC64_GOT_DTPREL16_LO_DS
:
6720 case R_PPC64_GOT_DTPREL16_HI
:
6721 case R_PPC64_GOT_DTPREL16_HA
:
6722 tls_type
= TLS_TLS
| TLS_DTPREL
;
6726 case R_PPC64_GOT16_DS
:
6727 case R_PPC64_GOT16_HA
:
6728 case R_PPC64_GOT16_HI
:
6729 case R_PPC64_GOT16_LO
:
6730 case R_PPC64_GOT16_LO_DS
:
6733 struct got_entry
*ent
;
6738 ent
= local_got_ents
[r_symndx
];
6740 for (; ent
!= NULL
; ent
= ent
->next
)
6741 if (ent
->addend
== rel
->r_addend
6742 && ent
->owner
== abfd
6743 && ent
->tls_type
== tls_type
)
6747 if (ent
->got
.refcount
> 0)
6748 ent
->got
.refcount
-= 1;
6750 if (h
!= NULL
&& !bfd_link_pic (info
) && abiversion (abfd
) != 1)
6751 plt_list
= &h
->plt
.plist
;
6754 case R_PPC64_PLT16_HA
:
6755 case R_PPC64_PLT16_HI
:
6756 case R_PPC64_PLT16_LO
:
6760 case R_PPC64_REL14_BRNTAKEN
:
6761 case R_PPC64_REL14_BRTAKEN
:
6764 plt_list
= &h
->plt
.plist
;
6765 else if (local_got_ents
!= NULL
)
6767 struct plt_entry
**local_plt
= (struct plt_entry
**)
6768 (local_got_ents
+ symtab_hdr
->sh_info
);
6769 unsigned char *local_got_tls_masks
= (unsigned char *)
6770 (local_plt
+ symtab_hdr
->sh_info
);
6771 if ((local_got_tls_masks
[r_symndx
] & PLT_IFUNC
) != 0)
6772 plt_list
= local_plt
+ r_symndx
;
6776 case R_PPC64_ADDR64
:
6777 case R_PPC64_ADDR16
:
6778 case R_PPC64_ADDR16_DS
:
6779 case R_PPC64_ADDR16_HA
:
6780 case R_PPC64_ADDR16_HI
:
6781 case R_PPC64_ADDR16_HIGH
:
6782 case R_PPC64_ADDR16_HIGHA
:
6783 case R_PPC64_ADDR16_HIGHER
:
6784 case R_PPC64_ADDR16_HIGHERA
:
6785 case R_PPC64_ADDR16_HIGHEST
:
6786 case R_PPC64_ADDR16_HIGHESTA
:
6787 case R_PPC64_ADDR16_LO
:
6788 case R_PPC64_ADDR16_LO_DS
:
6789 if (h
!= NULL
&& !bfd_link_pic (info
) && abiversion (abfd
) != 1
6790 && rel
->r_addend
== 0)
6791 plt_list
= &h
->plt
.plist
;
6797 if (plt_list
!= NULL
)
6799 struct plt_entry
*ent
;
6801 for (ent
= *plt_list
; ent
!= NULL
; ent
= ent
->next
)
6802 if (ent
->addend
== rel
->r_addend
)
6804 if (ent
!= NULL
&& ent
->plt
.refcount
> 0)
6805 ent
->plt
.refcount
-= 1;
6811 /* The maximum size of .sfpr. */
6812 #define SFPR_MAX (218*4)
6814 struct sfpr_def_parms
6816 const char name
[12];
6817 unsigned char lo
, hi
;
6818 bfd_byte
* (*write_ent
) (bfd
*, bfd_byte
*, int);
6819 bfd_byte
* (*write_tail
) (bfd
*, bfd_byte
*, int);
6822 /* Auto-generate _save*, _rest* functions in .sfpr.
6823 If STUB_SEC is non-null, define alias symbols in STUB_SEC
6827 sfpr_define (struct bfd_link_info
*info
,
6828 const struct sfpr_def_parms
*parm
,
6831 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6833 size_t len
= strlen (parm
->name
);
6834 bfd_boolean writing
= FALSE
;
6840 memcpy (sym
, parm
->name
, len
);
6843 for (i
= parm
->lo
; i
<= parm
->hi
; i
++)
6845 struct ppc_link_hash_entry
*h
;
6847 sym
[len
+ 0] = i
/ 10 + '0';
6848 sym
[len
+ 1] = i
% 10 + '0';
6849 h
= (struct ppc_link_hash_entry
*)
6850 elf_link_hash_lookup (&htab
->elf
, sym
, writing
, TRUE
, TRUE
);
6851 if (stub_sec
!= NULL
)
6854 && h
->elf
.root
.type
== bfd_link_hash_defined
6855 && h
->elf
.root
.u
.def
.section
== htab
->sfpr
)
6857 struct elf_link_hash_entry
*s
;
6859 sprintf (buf
, "%08x.%s", stub_sec
->id
& 0xffffffff, sym
);
6860 s
= elf_link_hash_lookup (&htab
->elf
, buf
, TRUE
, TRUE
, FALSE
);
6863 if (s
->root
.type
== bfd_link_hash_new
6864 || (s
->root
.type
= bfd_link_hash_defined
6865 && s
->root
.u
.def
.section
== stub_sec
))
6867 s
->root
.type
= bfd_link_hash_defined
;
6868 s
->root
.u
.def
.section
= stub_sec
;
6869 s
->root
.u
.def
.value
= (stub_sec
->size
6870 + h
->elf
.root
.u
.def
.value
);
6873 s
->ref_regular_nonweak
= 1;
6874 s
->forced_local
= 1;
6876 s
->root
.linker_def
= 1;
6884 if (!h
->elf
.def_regular
)
6886 h
->elf
.root
.type
= bfd_link_hash_defined
;
6887 h
->elf
.root
.u
.def
.section
= htab
->sfpr
;
6888 h
->elf
.root
.u
.def
.value
= htab
->sfpr
->size
;
6889 h
->elf
.type
= STT_FUNC
;
6890 h
->elf
.def_regular
= 1;
6892 _bfd_elf_link_hash_hide_symbol (info
, &h
->elf
, TRUE
);
6894 if (htab
->sfpr
->contents
== NULL
)
6896 htab
->sfpr
->contents
= bfd_alloc (htab
->elf
.dynobj
, SFPR_MAX
);
6897 if (htab
->sfpr
->contents
== NULL
)
6904 bfd_byte
*p
= htab
->sfpr
->contents
+ htab
->sfpr
->size
;
6906 p
= (*parm
->write_ent
) (htab
->elf
.dynobj
, p
, i
);
6908 p
= (*parm
->write_tail
) (htab
->elf
.dynobj
, p
, i
);
6909 htab
->sfpr
->size
= p
- htab
->sfpr
->contents
;
6917 savegpr0 (bfd
*abfd
, bfd_byte
*p
, int r
)
6919 bfd_put_32 (abfd
, STD_R0_0R1
+ (r
<< 21) + (1 << 16) - (32 - r
) * 8, p
);
6924 savegpr0_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
6926 p
= savegpr0 (abfd
, p
, r
);
6927 bfd_put_32 (abfd
, STD_R0_0R1
+ STK_LR
, p
);
6929 bfd_put_32 (abfd
, BLR
, p
);
6934 restgpr0 (bfd
*abfd
, bfd_byte
*p
, int r
)
6936 bfd_put_32 (abfd
, LD_R0_0R1
+ (r
<< 21) + (1 << 16) - (32 - r
) * 8, p
);
6941 restgpr0_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
6943 bfd_put_32 (abfd
, LD_R0_0R1
+ STK_LR
, p
);
6945 p
= restgpr0 (abfd
, p
, r
);
6946 bfd_put_32 (abfd
, MTLR_R0
, p
);
6950 p
= restgpr0 (abfd
, p
, 30);
6951 p
= restgpr0 (abfd
, p
, 31);
6953 bfd_put_32 (abfd
, BLR
, p
);
6958 savegpr1 (bfd
*abfd
, bfd_byte
*p
, int r
)
6960 bfd_put_32 (abfd
, STD_R0_0R12
+ (r
<< 21) + (1 << 16) - (32 - r
) * 8, p
);
6965 savegpr1_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
6967 p
= savegpr1 (abfd
, p
, r
);
6968 bfd_put_32 (abfd
, BLR
, p
);
6973 restgpr1 (bfd
*abfd
, bfd_byte
*p
, int r
)
6975 bfd_put_32 (abfd
, LD_R0_0R12
+ (r
<< 21) + (1 << 16) - (32 - r
) * 8, p
);
6980 restgpr1_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
6982 p
= restgpr1 (abfd
, p
, r
);
6983 bfd_put_32 (abfd
, BLR
, p
);
6988 savefpr (bfd
*abfd
, bfd_byte
*p
, int r
)
6990 bfd_put_32 (abfd
, STFD_FR0_0R1
+ (r
<< 21) + (1 << 16) - (32 - r
) * 8, p
);
6995 savefpr0_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
6997 p
= savefpr (abfd
, p
, r
);
6998 bfd_put_32 (abfd
, STD_R0_0R1
+ STK_LR
, p
);
7000 bfd_put_32 (abfd
, BLR
, p
);
7005 restfpr (bfd
*abfd
, bfd_byte
*p
, int r
)
7007 bfd_put_32 (abfd
, LFD_FR0_0R1
+ (r
<< 21) + (1 << 16) - (32 - r
) * 8, p
);
7012 restfpr0_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
7014 bfd_put_32 (abfd
, LD_R0_0R1
+ STK_LR
, p
);
7016 p
= restfpr (abfd
, p
, r
);
7017 bfd_put_32 (abfd
, MTLR_R0
, p
);
7021 p
= restfpr (abfd
, p
, 30);
7022 p
= restfpr (abfd
, p
, 31);
7024 bfd_put_32 (abfd
, BLR
, p
);
7029 savefpr1_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
7031 p
= savefpr (abfd
, p
, r
);
7032 bfd_put_32 (abfd
, BLR
, p
);
7037 restfpr1_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
7039 p
= restfpr (abfd
, p
, r
);
7040 bfd_put_32 (abfd
, BLR
, p
);
7045 savevr (bfd
*abfd
, bfd_byte
*p
, int r
)
7047 bfd_put_32 (abfd
, LI_R12_0
+ (1 << 16) - (32 - r
) * 16, p
);
7049 bfd_put_32 (abfd
, STVX_VR0_R12_R0
+ (r
<< 21), p
);
7054 savevr_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
7056 p
= savevr (abfd
, p
, r
);
7057 bfd_put_32 (abfd
, BLR
, p
);
7062 restvr (bfd
*abfd
, bfd_byte
*p
, int r
)
7064 bfd_put_32 (abfd
, LI_R12_0
+ (1 << 16) - (32 - r
) * 16, p
);
7066 bfd_put_32 (abfd
, LVX_VR0_R12_R0
+ (r
<< 21), p
);
7071 restvr_tail (bfd
*abfd
, bfd_byte
*p
, int r
)
7073 p
= restvr (abfd
, p
, r
);
7074 bfd_put_32 (abfd
, BLR
, p
);
7078 /* Called via elf_link_hash_traverse to transfer dynamic linking
7079 information on function code symbol entries to their corresponding
7080 function descriptor symbol entries. */
7083 func_desc_adjust (struct elf_link_hash_entry
*h
, void *inf
)
7085 struct bfd_link_info
*info
;
7086 struct ppc_link_hash_table
*htab
;
7087 struct ppc_link_hash_entry
*fh
;
7088 struct ppc_link_hash_entry
*fdh
;
7089 bfd_boolean force_local
;
7091 fh
= (struct ppc_link_hash_entry
*) h
;
7092 if (fh
->elf
.root
.type
== bfd_link_hash_indirect
)
7098 if (fh
->elf
.root
.root
.string
[0] != '.'
7099 || fh
->elf
.root
.root
.string
[1] == '\0')
7103 htab
= ppc_hash_table (info
);
7107 /* Find the corresponding function descriptor symbol. */
7108 fdh
= lookup_fdh (fh
, htab
);
7110 /* Resolve undefined references to dot-symbols as the value
7111 in the function descriptor, if we have one in a regular object.
7112 This is to satisfy cases like ".quad .foo". Calls to functions
7113 in dynamic objects are handled elsewhere. */
7114 if ((fh
->elf
.root
.type
== bfd_link_hash_undefined
7115 || fh
->elf
.root
.type
== bfd_link_hash_undefweak
)
7116 && (fdh
->elf
.root
.type
== bfd_link_hash_defined
7117 || fdh
->elf
.root
.type
== bfd_link_hash_defweak
)
7118 && get_opd_info (fdh
->elf
.root
.u
.def
.section
) != NULL
7119 && opd_entry_value (fdh
->elf
.root
.u
.def
.section
,
7120 fdh
->elf
.root
.u
.def
.value
,
7121 &fh
->elf
.root
.u
.def
.section
,
7122 &fh
->elf
.root
.u
.def
.value
, FALSE
) != (bfd_vma
) -1)
7124 fh
->elf
.root
.type
= fdh
->elf
.root
.type
;
7125 fh
->elf
.forced_local
= 1;
7126 fh
->elf
.def_regular
= fdh
->elf
.def_regular
;
7127 fh
->elf
.def_dynamic
= fdh
->elf
.def_dynamic
;
7130 if (!fh
->elf
.dynamic
)
7132 struct plt_entry
*ent
;
7134 for (ent
= fh
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
7135 if (ent
->plt
.refcount
> 0)
7141 /* Create a descriptor as undefined if necessary. */
7143 && !bfd_link_executable (info
)
7144 && (fh
->elf
.root
.type
== bfd_link_hash_undefined
7145 || fh
->elf
.root
.type
== bfd_link_hash_undefweak
))
7147 fdh
= make_fdh (info
, fh
);
7152 /* We can't support overriding of symbols on a fake descriptor. */
7155 && (fh
->elf
.root
.type
== bfd_link_hash_defined
7156 || fh
->elf
.root
.type
== bfd_link_hash_defweak
))
7157 _bfd_elf_link_hash_hide_symbol (info
, &fdh
->elf
, TRUE
);
7159 /* Transfer dynamic linking information to the function descriptor. */
7162 fdh
->elf
.ref_regular
|= fh
->elf
.ref_regular
;
7163 fdh
->elf
.ref_dynamic
|= fh
->elf
.ref_dynamic
;
7164 fdh
->elf
.ref_regular_nonweak
|= fh
->elf
.ref_regular_nonweak
;
7165 fdh
->elf
.non_got_ref
|= fh
->elf
.non_got_ref
;
7166 fdh
->elf
.dynamic
|= fh
->elf
.dynamic
;
7167 fdh
->elf
.needs_plt
|= (fh
->elf
.needs_plt
7168 || fh
->elf
.type
== STT_FUNC
7169 || fh
->elf
.type
== STT_GNU_IFUNC
);
7170 move_plt_plist (fh
, fdh
);
7172 if (!fdh
->elf
.forced_local
7173 && fh
->elf
.dynindx
!= -1)
7174 if (!bfd_elf_link_record_dynamic_symbol (info
, &fdh
->elf
))
7178 /* Now that the info is on the function descriptor, clear the
7179 function code sym info. Any function code syms for which we
7180 don't have a definition in a regular file, we force local.
7181 This prevents a shared library from exporting syms that have
7182 been imported from another library. Function code syms that
7183 are really in the library we must leave global to prevent the
7184 linker dragging in a definition from a static library. */
7185 force_local
= (!fh
->elf
.def_regular
7187 || !fdh
->elf
.def_regular
7188 || fdh
->elf
.forced_local
);
7189 _bfd_elf_link_hash_hide_symbol (info
, &fh
->elf
, force_local
);
7194 static const struct sfpr_def_parms save_res_funcs
[] =
7196 { "_savegpr0_", 14, 31, savegpr0
, savegpr0_tail
},
7197 { "_restgpr0_", 14, 29, restgpr0
, restgpr0_tail
},
7198 { "_restgpr0_", 30, 31, restgpr0
, restgpr0_tail
},
7199 { "_savegpr1_", 14, 31, savegpr1
, savegpr1_tail
},
7200 { "_restgpr1_", 14, 31, restgpr1
, restgpr1_tail
},
7201 { "_savefpr_", 14, 31, savefpr
, savefpr0_tail
},
7202 { "_restfpr_", 14, 29, restfpr
, restfpr0_tail
},
7203 { "_restfpr_", 30, 31, restfpr
, restfpr0_tail
},
7204 { "._savef", 14, 31, savefpr
, savefpr1_tail
},
7205 { "._restf", 14, 31, restfpr
, restfpr1_tail
},
7206 { "_savevr_", 20, 31, savevr
, savevr_tail
},
7207 { "_restvr_", 20, 31, restvr
, restvr_tail
}
7210 /* Called near the start of bfd_elf_size_dynamic_sections. We use
7211 this hook to a) provide some gcc support functions, and b) transfer
7212 dynamic linking information gathered so far on function code symbol
7213 entries, to their corresponding function descriptor symbol entries. */
7216 ppc64_elf_func_desc_adjust (bfd
*obfd ATTRIBUTE_UNUSED
,
7217 struct bfd_link_info
*info
)
7219 struct ppc_link_hash_table
*htab
;
7221 htab
= ppc_hash_table (info
);
7225 /* Provide any missing _save* and _rest* functions. */
7226 if (htab
->sfpr
!= NULL
)
7230 htab
->sfpr
->size
= 0;
7231 for (i
= 0; i
< ARRAY_SIZE (save_res_funcs
); i
++)
7232 if (!sfpr_define (info
, &save_res_funcs
[i
], NULL
))
7234 if (htab
->sfpr
->size
== 0)
7235 htab
->sfpr
->flags
|= SEC_EXCLUDE
;
7238 if (bfd_link_relocatable (info
))
7241 if (htab
->elf
.hgot
!= NULL
)
7243 _bfd_elf_link_hash_hide_symbol (info
, htab
->elf
.hgot
, TRUE
);
7244 /* Make .TOC. defined so as to prevent it being made dynamic.
7245 The wrong value here is fixed later in ppc64_elf_set_toc. */
7246 if (!htab
->elf
.hgot
->def_regular
7247 || htab
->elf
.hgot
->root
.type
!= bfd_link_hash_defined
)
7249 htab
->elf
.hgot
->root
.type
= bfd_link_hash_defined
;
7250 htab
->elf
.hgot
->root
.u
.def
.value
= 0;
7251 htab
->elf
.hgot
->root
.u
.def
.section
= bfd_abs_section_ptr
;
7252 htab
->elf
.hgot
->def_regular
= 1;
7253 htab
->elf
.hgot
->root
.linker_def
= 1;
7255 htab
->elf
.hgot
->type
= STT_OBJECT
;
7256 htab
->elf
.hgot
->other
= ((htab
->elf
.hgot
->other
& ~ELF_ST_VISIBILITY (-1))
7260 if (htab
->need_func_desc_adj
)
7262 elf_link_hash_traverse (&htab
->elf
, func_desc_adjust
, info
);
7263 htab
->need_func_desc_adj
= 0;
7269 /* Return true if we have dynamic relocs against H that apply to
7270 read-only sections. */
7273 readonly_dynrelocs (struct elf_link_hash_entry
*h
)
7275 struct ppc_link_hash_entry
*eh
;
7276 struct elf_dyn_relocs
*p
;
7278 eh
= (struct ppc_link_hash_entry
*) h
;
7279 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
7281 asection
*s
= p
->sec
->output_section
;
7283 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
7289 /* Return true if we have dynamic relocs against H or any of its weak
7290 aliases, that apply to read-only sections. */
7293 alias_readonly_dynrelocs (struct elf_link_hash_entry
*h
)
7295 struct ppc_link_hash_entry
*eh
;
7297 eh
= (struct ppc_link_hash_entry
*) h
;
7300 if (readonly_dynrelocs (&eh
->elf
))
7303 } while (eh
!= NULL
&& &eh
->elf
!= h
);
7308 /* Return whether EH has pc-relative dynamic relocs. */
7311 pc_dynrelocs (struct ppc_link_hash_entry
*eh
)
7313 struct elf_dyn_relocs
*p
;
7315 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
7316 if (p
->pc_count
!= 0)
7321 /* Return true if a global entry stub will be created for H. Valid
7322 for ELFv2 before plt entries have been allocated. */
7325 global_entry_stub (struct elf_link_hash_entry
*h
)
7327 struct plt_entry
*pent
;
7329 if (!h
->pointer_equality_needed
7333 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
7334 if (pent
->plt
.refcount
> 0
7335 && pent
->addend
== 0)
7341 /* Adjust a symbol defined by a dynamic object and referenced by a
7342 regular object. The current definition is in some section of the
7343 dynamic object, but we're not including those sections. We have to
7344 change the definition to something the rest of the link can
7348 ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
7349 struct elf_link_hash_entry
*h
)
7351 struct ppc_link_hash_table
*htab
;
7354 htab
= ppc_hash_table (info
);
7358 /* Deal with function syms. */
7359 if (h
->type
== STT_FUNC
7360 || h
->type
== STT_GNU_IFUNC
7363 /* Clear procedure linkage table information for any symbol that
7364 won't need a .plt entry. */
7365 struct plt_entry
*ent
;
7366 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
7367 if (ent
->plt
.refcount
> 0)
7370 || (h
->type
!= STT_GNU_IFUNC
7371 && (SYMBOL_CALLS_LOCAL (info
, h
)
7372 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
)))
7373 || ((struct ppc_link_hash_entry
*) h
)->save_res
)
7375 h
->plt
.plist
= NULL
;
7377 h
->pointer_equality_needed
= 0;
7379 else if (abiversion (info
->output_bfd
) >= 2)
7381 /* Taking a function's address in a read/write section
7382 doesn't require us to define the function symbol in the
7383 executable on a global entry stub. A dynamic reloc can
7384 be used instead. The reason we prefer a few more dynamic
7385 relocs is that calling via a global entry stub costs a
7386 few more instructions, and pointer_equality_needed causes
7387 extra work in ld.so when resolving these symbols. */
7388 if (global_entry_stub (h
)
7389 && !alias_readonly_dynrelocs (h
))
7391 h
->pointer_equality_needed
= 0;
7392 /* After adjust_dynamic_symbol, non_got_ref set in
7393 the non-pic case means that dyn_relocs for this
7394 symbol should be discarded. */
7398 /* If making a plt entry, then we don't need copy relocs. */
7403 h
->plt
.plist
= NULL
;
7405 /* If this is a weak symbol, and there is a real definition, the
7406 processor independent code will have arranged for us to see the
7407 real definition first, and we can just use the same value. */
7408 if (h
->u
.weakdef
!= NULL
)
7410 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
7411 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
7412 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
7413 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
7414 if (ELIMINATE_COPY_RELOCS
)
7415 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
7419 /* If we are creating a shared library, we must presume that the
7420 only references to the symbol are via the global offset table.
7421 For such cases we need not do anything here; the relocations will
7422 be handled correctly by relocate_section. */
7423 if (bfd_link_pic (info
))
7426 /* If there are no references to this symbol that do not use the
7427 GOT, we don't need to generate a copy reloc. */
7428 if (!h
->non_got_ref
)
7431 /* Don't generate a copy reloc for symbols defined in the executable. */
7432 if (!h
->def_dynamic
|| !h
->ref_regular
|| h
->def_regular
7434 /* If -z nocopyreloc was given, don't generate them either. */
7435 || info
->nocopyreloc
7437 /* If we didn't find any dynamic relocs in read-only sections, then
7438 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
7439 || (ELIMINATE_COPY_RELOCS
&& !alias_readonly_dynrelocs (h
))
7441 /* Protected variables do not work with .dynbss. The copy in
7442 .dynbss won't be used by the shared library with the protected
7443 definition for the variable. Text relocations are preferable
7444 to an incorrect program. */
7445 || h
->protected_def
)
7451 if (h
->plt
.plist
!= NULL
)
7453 /* We should never get here, but unfortunately there are versions
7454 of gcc out there that improperly (for this ABI) put initialized
7455 function pointers, vtable refs and suchlike in read-only
7456 sections. Allow them to proceed, but warn that this might
7457 break at runtime. */
7458 info
->callbacks
->einfo
7459 (_("%P: copy reloc against `%T' requires lazy plt linking; "
7460 "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"),
7461 h
->root
.root
.string
);
7464 /* This is a reference to a symbol defined by a dynamic object which
7465 is not a function. */
7467 /* We must allocate the symbol in our .dynbss section, which will
7468 become part of the .bss section of the executable. There will be
7469 an entry for this symbol in the .dynsym section. The dynamic
7470 object will contain position independent code, so all references
7471 from the dynamic object to this symbol will go through the global
7472 offset table. The dynamic linker will use the .dynsym entry to
7473 determine the address it must put in the global offset table, so
7474 both the dynamic object and the regular object will refer to the
7475 same memory location for the variable. */
7477 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
7478 to copy the initial value out of the dynamic object and into the
7479 runtime process image. We need to remember the offset into the
7480 .rela.bss section we are going to use. */
7481 if ((h
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
7483 s
= htab
->elf
.sdynrelro
;
7484 srel
= htab
->elf
.sreldynrelro
;
7488 s
= htab
->elf
.sdynbss
;
7489 srel
= htab
->elf
.srelbss
;
7491 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
7493 srel
->size
+= sizeof (Elf64_External_Rela
);
7497 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
7500 /* If given a function descriptor symbol, hide both the function code
7501 sym and the descriptor. */
7503 ppc64_elf_hide_symbol (struct bfd_link_info
*info
,
7504 struct elf_link_hash_entry
*h
,
7505 bfd_boolean force_local
)
7507 struct ppc_link_hash_entry
*eh
;
7508 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
7510 eh
= (struct ppc_link_hash_entry
*) h
;
7511 if (eh
->is_func_descriptor
)
7513 struct ppc_link_hash_entry
*fh
= eh
->oh
;
7518 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
7521 /* We aren't supposed to use alloca in BFD because on
7522 systems which do not have alloca the version in libiberty
7523 calls xmalloc, which might cause the program to crash
7524 when it runs out of memory. This function doesn't have a
7525 return status, so there's no way to gracefully return an
7526 error. So cheat. We know that string[-1] can be safely
7527 accessed; It's either a string in an ELF string table,
7528 or allocated in an objalloc structure. */
7530 p
= eh
->elf
.root
.root
.string
- 1;
7533 fh
= (struct ppc_link_hash_entry
*)
7534 elf_link_hash_lookup (htab
, p
, FALSE
, FALSE
, FALSE
);
7537 /* Unfortunately, if it so happens that the string we were
7538 looking for was allocated immediately before this string,
7539 then we overwrote the string terminator. That's the only
7540 reason the lookup should fail. */
7543 q
= eh
->elf
.root
.root
.string
+ strlen (eh
->elf
.root
.root
.string
);
7544 while (q
>= eh
->elf
.root
.root
.string
&& *q
== *p
)
7546 if (q
< eh
->elf
.root
.root
.string
&& *p
== '.')
7547 fh
= (struct ppc_link_hash_entry
*)
7548 elf_link_hash_lookup (htab
, p
, FALSE
, FALSE
, FALSE
);
7557 _bfd_elf_link_hash_hide_symbol (info
, &fh
->elf
, force_local
);
7562 get_sym_h (struct elf_link_hash_entry
**hp
,
7563 Elf_Internal_Sym
**symp
,
7565 unsigned char **tls_maskp
,
7566 Elf_Internal_Sym
**locsymsp
,
7567 unsigned long r_symndx
,
7570 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (ibfd
);
7572 if (r_symndx
>= symtab_hdr
->sh_info
)
7574 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
7575 struct elf_link_hash_entry
*h
;
7577 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7578 h
= elf_follow_link (h
);
7586 if (symsecp
!= NULL
)
7588 asection
*symsec
= NULL
;
7589 if (h
->root
.type
== bfd_link_hash_defined
7590 || h
->root
.type
== bfd_link_hash_defweak
)
7591 symsec
= h
->root
.u
.def
.section
;
7595 if (tls_maskp
!= NULL
)
7597 struct ppc_link_hash_entry
*eh
;
7599 eh
= (struct ppc_link_hash_entry
*) h
;
7600 *tls_maskp
= &eh
->tls_mask
;
7605 Elf_Internal_Sym
*sym
;
7606 Elf_Internal_Sym
*locsyms
= *locsymsp
;
7608 if (locsyms
== NULL
)
7610 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
7611 if (locsyms
== NULL
)
7612 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
7613 symtab_hdr
->sh_info
,
7614 0, NULL
, NULL
, NULL
);
7615 if (locsyms
== NULL
)
7617 *locsymsp
= locsyms
;
7619 sym
= locsyms
+ r_symndx
;
7627 if (symsecp
!= NULL
)
7628 *symsecp
= bfd_section_from_elf_index (ibfd
, sym
->st_shndx
);
7630 if (tls_maskp
!= NULL
)
7632 struct got_entry
**lgot_ents
;
7633 unsigned char *tls_mask
;
7636 lgot_ents
= elf_local_got_ents (ibfd
);
7637 if (lgot_ents
!= NULL
)
7639 struct plt_entry
**local_plt
= (struct plt_entry
**)
7640 (lgot_ents
+ symtab_hdr
->sh_info
);
7641 unsigned char *lgot_masks
= (unsigned char *)
7642 (local_plt
+ symtab_hdr
->sh_info
);
7643 tls_mask
= &lgot_masks
[r_symndx
];
7645 *tls_maskp
= tls_mask
;
7651 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
7652 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
7653 type suitable for optimization, and 1 otherwise. */
7656 get_tls_mask (unsigned char **tls_maskp
,
7657 unsigned long *toc_symndx
,
7658 bfd_vma
*toc_addend
,
7659 Elf_Internal_Sym
**locsymsp
,
7660 const Elf_Internal_Rela
*rel
,
7663 unsigned long r_symndx
;
7665 struct elf_link_hash_entry
*h
;
7666 Elf_Internal_Sym
*sym
;
7670 r_symndx
= ELF64_R_SYM (rel
->r_info
);
7671 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
7674 if ((*tls_maskp
!= NULL
&& **tls_maskp
!= 0)
7676 || ppc64_elf_section_data (sec
) == NULL
7677 || ppc64_elf_section_data (sec
)->sec_type
!= sec_toc
)
7680 /* Look inside a TOC section too. */
7683 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
7684 off
= h
->root
.u
.def
.value
;
7687 off
= sym
->st_value
;
7688 off
+= rel
->r_addend
;
7689 BFD_ASSERT (off
% 8 == 0);
7690 r_symndx
= ppc64_elf_section_data (sec
)->u
.toc
.symndx
[off
/ 8];
7691 next_r
= ppc64_elf_section_data (sec
)->u
.toc
.symndx
[off
/ 8 + 1];
7692 if (toc_symndx
!= NULL
)
7693 *toc_symndx
= r_symndx
;
7694 if (toc_addend
!= NULL
)
7695 *toc_addend
= ppc64_elf_section_data (sec
)->u
.toc
.add
[off
/ 8];
7696 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
7698 if ((h
== NULL
|| is_static_defined (h
))
7699 && (next_r
== -1 || next_r
== -2))
7704 /* Find (or create) an entry in the tocsave hash table. */
7706 static struct tocsave_entry
*
7707 tocsave_find (struct ppc_link_hash_table
*htab
,
7708 enum insert_option insert
,
7709 Elf_Internal_Sym
**local_syms
,
7710 const Elf_Internal_Rela
*irela
,
7713 unsigned long r_indx
;
7714 struct elf_link_hash_entry
*h
;
7715 Elf_Internal_Sym
*sym
;
7716 struct tocsave_entry ent
, *p
;
7718 struct tocsave_entry
**slot
;
7720 r_indx
= ELF64_R_SYM (irela
->r_info
);
7721 if (!get_sym_h (&h
, &sym
, &ent
.sec
, NULL
, local_syms
, r_indx
, ibfd
))
7723 if (ent
.sec
== NULL
|| ent
.sec
->output_section
== NULL
)
7726 (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd
);
7731 ent
.offset
= h
->root
.u
.def
.value
;
7733 ent
.offset
= sym
->st_value
;
7734 ent
.offset
+= irela
->r_addend
;
7736 hash
= tocsave_htab_hash (&ent
);
7737 slot
= ((struct tocsave_entry
**)
7738 htab_find_slot_with_hash (htab
->tocsave_htab
, &ent
, hash
, insert
));
7744 p
= (struct tocsave_entry
*) bfd_alloc (ibfd
, sizeof (*p
));
7753 /* Adjust all global syms defined in opd sections. In gcc generated
7754 code for the old ABI, these will already have been done. */
7757 adjust_opd_syms (struct elf_link_hash_entry
*h
, void *inf ATTRIBUTE_UNUSED
)
7759 struct ppc_link_hash_entry
*eh
;
7761 struct _opd_sec_data
*opd
;
7763 if (h
->root
.type
== bfd_link_hash_indirect
)
7766 if (h
->root
.type
!= bfd_link_hash_defined
7767 && h
->root
.type
!= bfd_link_hash_defweak
)
7770 eh
= (struct ppc_link_hash_entry
*) h
;
7771 if (eh
->adjust_done
)
7774 sym_sec
= eh
->elf
.root
.u
.def
.section
;
7775 opd
= get_opd_info (sym_sec
);
7776 if (opd
!= NULL
&& opd
->adjust
!= NULL
)
7778 long adjust
= opd
->adjust
[OPD_NDX (eh
->elf
.root
.u
.def
.value
)];
7781 /* This entry has been deleted. */
7782 asection
*dsec
= ppc64_elf_tdata (sym_sec
->owner
)->deleted_section
;
7785 for (dsec
= sym_sec
->owner
->sections
; dsec
; dsec
= dsec
->next
)
7786 if (discarded_section (dsec
))
7788 ppc64_elf_tdata (sym_sec
->owner
)->deleted_section
= dsec
;
7792 eh
->elf
.root
.u
.def
.value
= 0;
7793 eh
->elf
.root
.u
.def
.section
= dsec
;
7796 eh
->elf
.root
.u
.def
.value
+= adjust
;
7797 eh
->adjust_done
= 1;
7802 /* Handles decrementing dynamic reloc counts for the reloc specified by
7803 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM
7804 have already been determined. */
7807 dec_dynrel_count (bfd_vma r_info
,
7809 struct bfd_link_info
*info
,
7810 Elf_Internal_Sym
**local_syms
,
7811 struct elf_link_hash_entry
*h
,
7812 Elf_Internal_Sym
*sym
)
7814 enum elf_ppc64_reloc_type r_type
;
7815 asection
*sym_sec
= NULL
;
7817 /* Can this reloc be dynamic? This switch, and later tests here
7818 should be kept in sync with the code in check_relocs. */
7819 r_type
= ELF64_R_TYPE (r_info
);
7825 case R_PPC64_TPREL16
:
7826 case R_PPC64_TPREL16_LO
:
7827 case R_PPC64_TPREL16_HI
:
7828 case R_PPC64_TPREL16_HA
:
7829 case R_PPC64_TPREL16_DS
:
7830 case R_PPC64_TPREL16_LO_DS
:
7831 case R_PPC64_TPREL16_HIGH
:
7832 case R_PPC64_TPREL16_HIGHA
:
7833 case R_PPC64_TPREL16_HIGHER
:
7834 case R_PPC64_TPREL16_HIGHERA
:
7835 case R_PPC64_TPREL16_HIGHEST
:
7836 case R_PPC64_TPREL16_HIGHESTA
:
7837 case R_PPC64_TPREL64
:
7838 case R_PPC64_DTPMOD64
:
7839 case R_PPC64_DTPREL64
:
7840 case R_PPC64_ADDR64
:
7844 case R_PPC64_ADDR14
:
7845 case R_PPC64_ADDR14_BRNTAKEN
:
7846 case R_PPC64_ADDR14_BRTAKEN
:
7847 case R_PPC64_ADDR16
:
7848 case R_PPC64_ADDR16_DS
:
7849 case R_PPC64_ADDR16_HA
:
7850 case R_PPC64_ADDR16_HI
:
7851 case R_PPC64_ADDR16_HIGH
:
7852 case R_PPC64_ADDR16_HIGHA
:
7853 case R_PPC64_ADDR16_HIGHER
:
7854 case R_PPC64_ADDR16_HIGHERA
:
7855 case R_PPC64_ADDR16_HIGHEST
:
7856 case R_PPC64_ADDR16_HIGHESTA
:
7857 case R_PPC64_ADDR16_LO
:
7858 case R_PPC64_ADDR16_LO_DS
:
7859 case R_PPC64_ADDR24
:
7860 case R_PPC64_ADDR32
:
7861 case R_PPC64_UADDR16
:
7862 case R_PPC64_UADDR32
:
7863 case R_PPC64_UADDR64
:
7868 if (local_syms
!= NULL
)
7870 unsigned long r_symndx
;
7871 bfd
*ibfd
= sec
->owner
;
7873 r_symndx
= ELF64_R_SYM (r_info
);
7874 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, local_syms
, r_symndx
, ibfd
))
7878 if ((bfd_link_pic (info
)
7879 && (must_be_dyn_reloc (info
, r_type
)
7881 && (!SYMBOLIC_BIND (info
, h
)
7882 || h
->root
.type
== bfd_link_hash_defweak
7883 || !h
->def_regular
))))
7884 || (ELIMINATE_COPY_RELOCS
7885 && !bfd_link_pic (info
)
7887 && (h
->root
.type
== bfd_link_hash_defweak
7888 || !h
->def_regular
)))
7895 struct elf_dyn_relocs
*p
;
7896 struct elf_dyn_relocs
**pp
;
7897 pp
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
7899 /* elf_gc_sweep may have already removed all dyn relocs associated
7900 with local syms for a given section. Also, symbol flags are
7901 changed by elf_gc_sweep_symbol, confusing the test above. Don't
7902 report a dynreloc miscount. */
7903 if (*pp
== NULL
&& info
->gc_sections
)
7906 while ((p
= *pp
) != NULL
)
7910 if (!must_be_dyn_reloc (info
, r_type
))
7922 struct ppc_dyn_relocs
*p
;
7923 struct ppc_dyn_relocs
**pp
;
7925 bfd_boolean is_ifunc
;
7927 if (local_syms
== NULL
)
7928 sym_sec
= bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
7929 if (sym_sec
== NULL
)
7932 vpp
= &elf_section_data (sym_sec
)->local_dynrel
;
7933 pp
= (struct ppc_dyn_relocs
**) vpp
;
7935 if (*pp
== NULL
&& info
->gc_sections
)
7938 is_ifunc
= ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
;
7939 while ((p
= *pp
) != NULL
)
7941 if (p
->sec
== sec
&& p
->ifunc
== is_ifunc
)
7952 /* xgettext:c-format */
7953 info
->callbacks
->einfo (_("%P: dynreloc miscount for %B, section %A\n"),
7955 bfd_set_error (bfd_error_bad_value
);
7959 /* Remove unused Official Procedure Descriptor entries. Currently we
7960 only remove those associated with functions in discarded link-once
7961 sections, or weakly defined functions that have been overridden. It
7962 would be possible to remove many more entries for statically linked
7966 ppc64_elf_edit_opd (struct bfd_link_info
*info
)
7969 bfd_boolean some_edited
= FALSE
;
7970 asection
*need_pad
= NULL
;
7971 struct ppc_link_hash_table
*htab
;
7973 htab
= ppc_hash_table (info
);
7977 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
7980 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
7981 Elf_Internal_Shdr
*symtab_hdr
;
7982 Elf_Internal_Sym
*local_syms
;
7983 struct _opd_sec_data
*opd
;
7984 bfd_boolean need_edit
, add_aux_fields
, broken
;
7985 bfd_size_type cnt_16b
= 0;
7987 if (!is_ppc64_elf (ibfd
))
7990 sec
= bfd_get_section_by_name (ibfd
, ".opd");
7991 if (sec
== NULL
|| sec
->size
== 0)
7994 if (sec
->sec_info_type
== SEC_INFO_TYPE_JUST_SYMS
)
7997 if (sec
->output_section
== bfd_abs_section_ptr
)
8000 /* Look through the section relocs. */
8001 if ((sec
->flags
& SEC_RELOC
) == 0 || sec
->reloc_count
== 0)
8005 symtab_hdr
= &elf_symtab_hdr (ibfd
);
8007 /* Read the relocations. */
8008 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
8010 if (relstart
== NULL
)
8013 /* First run through the relocs to check they are sane, and to
8014 determine whether we need to edit this opd section. */
8018 relend
= relstart
+ sec
->reloc_count
;
8019 for (rel
= relstart
; rel
< relend
; )
8021 enum elf_ppc64_reloc_type r_type
;
8022 unsigned long r_symndx
;
8024 struct elf_link_hash_entry
*h
;
8025 Elf_Internal_Sym
*sym
;
8028 /* .opd contains an array of 16 or 24 byte entries. We're
8029 only interested in the reloc pointing to a function entry
8031 offset
= rel
->r_offset
;
8032 if (rel
+ 1 == relend
8033 || rel
[1].r_offset
!= offset
+ 8)
8035 /* If someone messes with .opd alignment then after a
8036 "ld -r" we might have padding in the middle of .opd.
8037 Also, there's nothing to prevent someone putting
8038 something silly in .opd with the assembler. No .opd
8039 optimization for them! */
8042 (_("%B: .opd is not a regular array of opd entries"), ibfd
);
8047 if ((r_type
= ELF64_R_TYPE (rel
->r_info
)) != R_PPC64_ADDR64
8048 || (r_type
= ELF64_R_TYPE ((rel
+ 1)->r_info
)) != R_PPC64_TOC
)
8051 /* xgettext:c-format */
8052 (_("%B: unexpected reloc type %u in .opd section"),
8058 r_symndx
= ELF64_R_SYM (rel
->r_info
);
8059 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
8063 if (sym_sec
== NULL
|| sym_sec
->owner
== NULL
)
8065 const char *sym_name
;
8067 sym_name
= h
->root
.root
.string
;
8069 sym_name
= bfd_elf_sym_name (ibfd
, symtab_hdr
, sym
,
8073 /* xgettext:c-format */
8074 (_("%B: undefined sym `%s' in .opd section"),
8080 /* opd entries are always for functions defined in the
8081 current input bfd. If the symbol isn't defined in the
8082 input bfd, then we won't be using the function in this
8083 bfd; It must be defined in a linkonce section in another
8084 bfd, or is weak. It's also possible that we are
8085 discarding the function due to a linker script /DISCARD/,
8086 which we test for via the output_section. */
8087 if (sym_sec
->owner
!= ibfd
8088 || sym_sec
->output_section
== bfd_abs_section_ptr
)
8092 if (rel
+ 1 == relend
8093 || (rel
+ 2 < relend
8094 && ELF64_R_TYPE (rel
[2].r_info
) == R_PPC64_TOC
))
8099 if (sec
->size
== offset
+ 24)
8104 if (sec
->size
== offset
+ 16)
8111 else if (rel
+ 1 < relend
8112 && ELF64_R_TYPE (rel
[0].r_info
) == R_PPC64_ADDR64
8113 && ELF64_R_TYPE (rel
[1].r_info
) == R_PPC64_TOC
)
8115 if (rel
[0].r_offset
== offset
+ 16)
8117 else if (rel
[0].r_offset
!= offset
+ 24)
8124 add_aux_fields
= htab
->params
->non_overlapping_opd
&& cnt_16b
> 0;
8126 if (!broken
&& (need_edit
|| add_aux_fields
))
8128 Elf_Internal_Rela
*write_rel
;
8129 Elf_Internal_Shdr
*rel_hdr
;
8130 bfd_byte
*rptr
, *wptr
;
8131 bfd_byte
*new_contents
;
8134 new_contents
= NULL
;
8135 amt
= OPD_NDX (sec
->size
) * sizeof (long);
8136 opd
= &ppc64_elf_section_data (sec
)->u
.opd
;
8137 opd
->adjust
= bfd_zalloc (sec
->owner
, amt
);
8138 if (opd
->adjust
== NULL
)
8141 /* This seems a waste of time as input .opd sections are all
8142 zeros as generated by gcc, but I suppose there's no reason
8143 this will always be so. We might start putting something in
8144 the third word of .opd entries. */
8145 if ((sec
->flags
& SEC_IN_MEMORY
) == 0)
8148 if (!bfd_malloc_and_get_section (ibfd
, sec
, &loc
))
8153 if (local_syms
!= NULL
8154 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
8156 if (elf_section_data (sec
)->relocs
!= relstart
)
8160 sec
->contents
= loc
;
8161 sec
->flags
|= (SEC_IN_MEMORY
| SEC_HAS_CONTENTS
);
8164 elf_section_data (sec
)->relocs
= relstart
;
8166 new_contents
= sec
->contents
;
8169 new_contents
= bfd_malloc (sec
->size
+ cnt_16b
* 8);
8170 if (new_contents
== NULL
)
8174 wptr
= new_contents
;
8175 rptr
= sec
->contents
;
8176 write_rel
= relstart
;
8177 for (rel
= relstart
; rel
< relend
; )
8179 unsigned long r_symndx
;
8181 struct elf_link_hash_entry
*h
;
8182 struct ppc_link_hash_entry
*fdh
= NULL
;
8183 Elf_Internal_Sym
*sym
;
8185 Elf_Internal_Rela
*next_rel
;
8188 r_symndx
= ELF64_R_SYM (rel
->r_info
);
8189 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
8194 if (next_rel
+ 1 == relend
8195 || (next_rel
+ 2 < relend
8196 && ELF64_R_TYPE (next_rel
[2].r_info
) == R_PPC64_TOC
))
8199 /* See if the .opd entry is full 24 byte or
8200 16 byte (with fd_aux entry overlapped with next
8203 if (next_rel
== relend
)
8205 if (sec
->size
== rel
->r_offset
+ 16)
8208 else if (next_rel
->r_offset
== rel
->r_offset
+ 16)
8212 && h
->root
.root
.string
[0] == '.')
8214 fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
8217 fdh
= ppc_follow_link (fdh
);
8218 if (fdh
->elf
.root
.type
!= bfd_link_hash_defined
8219 && fdh
->elf
.root
.type
!= bfd_link_hash_defweak
)
8224 skip
= (sym_sec
->owner
!= ibfd
8225 || sym_sec
->output_section
== bfd_abs_section_ptr
);
8228 if (fdh
!= NULL
&& sym_sec
->owner
== ibfd
)
8230 /* Arrange for the function descriptor sym
8232 fdh
->elf
.root
.u
.def
.value
= 0;
8233 fdh
->elf
.root
.u
.def
.section
= sym_sec
;
8235 opd
->adjust
[OPD_NDX (rel
->r_offset
)] = -1;
8237 if (NO_OPD_RELOCS
|| bfd_link_relocatable (info
))
8242 if (!dec_dynrel_count (rel
->r_info
, sec
, info
,
8246 if (++rel
== next_rel
)
8249 r_symndx
= ELF64_R_SYM (rel
->r_info
);
8250 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
8257 /* We'll be keeping this opd entry. */
8262 /* Redefine the function descriptor symbol to
8263 this location in the opd section. It is
8264 necessary to update the value here rather
8265 than using an array of adjustments as we do
8266 for local symbols, because various places
8267 in the generic ELF code use the value
8268 stored in u.def.value. */
8269 fdh
->elf
.root
.u
.def
.value
= wptr
- new_contents
;
8270 fdh
->adjust_done
= 1;
8273 /* Local syms are a bit tricky. We could
8274 tweak them as they can be cached, but
8275 we'd need to look through the local syms
8276 for the function descriptor sym which we
8277 don't have at the moment. So keep an
8278 array of adjustments. */
8279 adjust
= (wptr
- new_contents
) - (rptr
- sec
->contents
);
8280 opd
->adjust
[OPD_NDX (rel
->r_offset
)] = adjust
;
8283 memcpy (wptr
, rptr
, opd_ent_size
);
8284 wptr
+= opd_ent_size
;
8285 if (add_aux_fields
&& opd_ent_size
== 16)
8287 memset (wptr
, '\0', 8);
8291 /* We need to adjust any reloc offsets to point to the
8293 for ( ; rel
!= next_rel
; ++rel
)
8295 rel
->r_offset
+= adjust
;
8296 if (write_rel
!= rel
)
8297 memcpy (write_rel
, rel
, sizeof (*rel
));
8302 rptr
+= opd_ent_size
;
8305 sec
->size
= wptr
- new_contents
;
8306 sec
->reloc_count
= write_rel
- relstart
;
8309 free (sec
->contents
);
8310 sec
->contents
= new_contents
;
8313 /* Fudge the header size too, as this is used later in
8314 elf_bfd_final_link if we are emitting relocs. */
8315 rel_hdr
= _bfd_elf_single_rel_hdr (sec
);
8316 rel_hdr
->sh_size
= sec
->reloc_count
* rel_hdr
->sh_entsize
;
8319 else if (elf_section_data (sec
)->relocs
!= relstart
)
8322 if (local_syms
!= NULL
8323 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
8325 if (!info
->keep_memory
)
8328 symtab_hdr
->contents
= (unsigned char *) local_syms
;
8333 elf_link_hash_traverse (elf_hash_table (info
), adjust_opd_syms
, NULL
);
8335 /* If we are doing a final link and the last .opd entry is just 16 byte
8336 long, add a 8 byte padding after it. */
8337 if (need_pad
!= NULL
&& !bfd_link_relocatable (info
))
8341 if ((need_pad
->flags
& SEC_IN_MEMORY
) == 0)
8343 BFD_ASSERT (need_pad
->size
> 0);
8345 p
= bfd_malloc (need_pad
->size
+ 8);
8349 if (! bfd_get_section_contents (need_pad
->owner
, need_pad
,
8350 p
, 0, need_pad
->size
))
8353 need_pad
->contents
= p
;
8354 need_pad
->flags
|= (SEC_IN_MEMORY
| SEC_HAS_CONTENTS
);
8358 p
= bfd_realloc (need_pad
->contents
, need_pad
->size
+ 8);
8362 need_pad
->contents
= p
;
8365 memset (need_pad
->contents
+ need_pad
->size
, 0, 8);
8366 need_pad
->size
+= 8;
8372 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
8375 ppc64_elf_tls_setup (struct bfd_link_info
*info
)
8377 struct ppc_link_hash_table
*htab
;
8379 htab
= ppc_hash_table (info
);
8383 if (abiversion (info
->output_bfd
) == 1)
8386 if (htab
->params
->no_multi_toc
)
8387 htab
->do_multi_toc
= 0;
8388 else if (!htab
->do_multi_toc
)
8389 htab
->params
->no_multi_toc
= 1;
8391 /* Default to --no-plt-localentry, as this option can cause problems
8392 with symbol interposition. For example, glibc libpthread.so and
8393 libc.so duplicate many pthread symbols, with a fallback
8394 implementation in libc.so. In some cases the fallback does more
8395 work than the pthread implementation. __pthread_condattr_destroy
8396 is one such symbol: the libpthread.so implementation is
8397 localentry:0 while the libc.so implementation is localentry:8.
8398 An app that "cleverly" uses dlopen to only load necessary
8399 libraries at runtime may omit loading libpthread.so when not
8400 running multi-threaded, which then results in the libc.so
8401 fallback symbols being used and ld.so complaining. Now there
8402 are workarounds in ld (see non_zero_localentry) to detect the
8403 pthread situation, but that may not be the only case where
8404 --plt-localentry can cause trouble. */
8405 if (htab
->params
->plt_localentry0
< 0)
8406 htab
->params
->plt_localentry0
= 0;
8407 if (htab
->params
->plt_localentry0
8408 && elf_link_hash_lookup (&htab
->elf
, "GLIBC_2.26",
8409 FALSE
, FALSE
, FALSE
) == NULL
)
8410 info
->callbacks
->einfo
8411 (_("%P: warning: --plt-localentry is especially dangerous without "
8412 "ld.so support to detect ABI violations.\n"));
8414 htab
->tls_get_addr
= ((struct ppc_link_hash_entry
*)
8415 elf_link_hash_lookup (&htab
->elf
, ".__tls_get_addr",
8416 FALSE
, FALSE
, TRUE
));
8417 /* Move dynamic linking info to the function descriptor sym. */
8418 if (htab
->tls_get_addr
!= NULL
)
8419 func_desc_adjust (&htab
->tls_get_addr
->elf
, info
);
8420 htab
->tls_get_addr_fd
= ((struct ppc_link_hash_entry
*)
8421 elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr",
8422 FALSE
, FALSE
, TRUE
));
8423 if (htab
->params
->tls_get_addr_opt
)
8425 struct elf_link_hash_entry
*opt
, *opt_fd
, *tga
, *tga_fd
;
8427 opt
= elf_link_hash_lookup (&htab
->elf
, ".__tls_get_addr_opt",
8428 FALSE
, FALSE
, TRUE
);
8430 func_desc_adjust (opt
, info
);
8431 opt_fd
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr_opt",
8432 FALSE
, FALSE
, TRUE
);
8434 && (opt_fd
->root
.type
== bfd_link_hash_defined
8435 || opt_fd
->root
.type
== bfd_link_hash_defweak
))
8437 /* If glibc supports an optimized __tls_get_addr call stub,
8438 signalled by the presence of __tls_get_addr_opt, and we'll
8439 be calling __tls_get_addr via a plt call stub, then
8440 make __tls_get_addr point to __tls_get_addr_opt. */
8441 tga_fd
= &htab
->tls_get_addr_fd
->elf
;
8442 if (htab
->elf
.dynamic_sections_created
8444 && (tga_fd
->type
== STT_FUNC
8445 || tga_fd
->needs_plt
)
8446 && !(SYMBOL_CALLS_LOCAL (info
, tga_fd
)
8447 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, tga_fd
)))
8449 struct plt_entry
*ent
;
8451 for (ent
= tga_fd
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
8452 if (ent
->plt
.refcount
> 0)
8456 tga_fd
->root
.type
= bfd_link_hash_indirect
;
8457 tga_fd
->root
.u
.i
.link
= &opt_fd
->root
;
8458 ppc64_elf_copy_indirect_symbol (info
, opt_fd
, tga_fd
);
8460 if (opt_fd
->dynindx
!= -1)
8462 /* Use __tls_get_addr_opt in dynamic relocations. */
8463 opt_fd
->dynindx
= -1;
8464 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
8465 opt_fd
->dynstr_index
);
8466 if (!bfd_elf_link_record_dynamic_symbol (info
, opt_fd
))
8469 htab
->tls_get_addr_fd
= (struct ppc_link_hash_entry
*) opt_fd
;
8470 tga
= &htab
->tls_get_addr
->elf
;
8471 if (opt
!= NULL
&& tga
!= NULL
)
8473 tga
->root
.type
= bfd_link_hash_indirect
;
8474 tga
->root
.u
.i
.link
= &opt
->root
;
8475 ppc64_elf_copy_indirect_symbol (info
, opt
, tga
);
8477 _bfd_elf_link_hash_hide_symbol (info
, opt
,
8479 htab
->tls_get_addr
= (struct ppc_link_hash_entry
*) opt
;
8481 htab
->tls_get_addr_fd
->oh
= htab
->tls_get_addr
;
8482 htab
->tls_get_addr_fd
->is_func_descriptor
= 1;
8483 if (htab
->tls_get_addr
!= NULL
)
8485 htab
->tls_get_addr
->oh
= htab
->tls_get_addr_fd
;
8486 htab
->tls_get_addr
->is_func
= 1;
8491 else if (htab
->params
->tls_get_addr_opt
< 0)
8492 htab
->params
->tls_get_addr_opt
= 0;
8494 return _bfd_elf_tls_setup (info
->output_bfd
, info
);
8497 /* Return TRUE iff REL is a branch reloc with a global symbol matching
8501 branch_reloc_hash_match (const bfd
*ibfd
,
8502 const Elf_Internal_Rela
*rel
,
8503 const struct ppc_link_hash_entry
*hash1
,
8504 const struct ppc_link_hash_entry
*hash2
)
8506 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (ibfd
);
8507 enum elf_ppc64_reloc_type r_type
= ELF64_R_TYPE (rel
->r_info
);
8508 unsigned int r_symndx
= ELF64_R_SYM (rel
->r_info
);
8510 if (r_symndx
>= symtab_hdr
->sh_info
&& is_branch_reloc (r_type
))
8512 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
8513 struct elf_link_hash_entry
*h
;
8515 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
8516 h
= elf_follow_link (h
);
8517 if (h
== &hash1
->elf
|| h
== &hash2
->elf
)
8523 /* Run through all the TLS relocs looking for optimization
8524 opportunities. The linker has been hacked (see ppc64elf.em) to do
8525 a preliminary section layout so that we know the TLS segment
8526 offsets. We can't optimize earlier because some optimizations need
8527 to know the tp offset, and we need to optimize before allocating
8528 dynamic relocations. */
8531 ppc64_elf_tls_optimize (struct bfd_link_info
*info
)
8535 struct ppc_link_hash_table
*htab
;
8536 unsigned char *toc_ref
;
8539 if (!bfd_link_executable (info
))
8542 htab
= ppc_hash_table (info
);
8546 /* Make two passes over the relocs. On the first pass, mark toc
8547 entries involved with tls relocs, and check that tls relocs
8548 involved in setting up a tls_get_addr call are indeed followed by
8549 such a call. If they are not, we can't do any tls optimization.
8550 On the second pass twiddle tls_mask flags to notify
8551 relocate_section that optimization can be done, and adjust got
8552 and plt refcounts. */
8554 for (pass
= 0; pass
< 2; ++pass
)
8555 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
8557 Elf_Internal_Sym
*locsyms
= NULL
;
8558 asection
*toc
= bfd_get_section_by_name (ibfd
, ".toc");
8560 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
8561 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
8563 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
8564 bfd_boolean found_tls_get_addr_arg
= 0;
8566 /* Read the relocations. */
8567 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
8569 if (relstart
== NULL
)
8575 relend
= relstart
+ sec
->reloc_count
;
8576 for (rel
= relstart
; rel
< relend
; rel
++)
8578 enum elf_ppc64_reloc_type r_type
;
8579 unsigned long r_symndx
;
8580 struct elf_link_hash_entry
*h
;
8581 Elf_Internal_Sym
*sym
;
8583 unsigned char *tls_mask
;
8584 unsigned char tls_set
, tls_clear
, tls_type
= 0;
8586 bfd_boolean ok_tprel
, is_local
;
8587 long toc_ref_index
= 0;
8588 int expecting_tls_get_addr
= 0;
8589 bfd_boolean ret
= FALSE
;
8591 r_symndx
= ELF64_R_SYM (rel
->r_info
);
8592 if (!get_sym_h (&h
, &sym
, &sym_sec
, &tls_mask
, &locsyms
,
8596 if (elf_section_data (sec
)->relocs
!= relstart
)
8598 if (toc_ref
!= NULL
)
8601 && (elf_symtab_hdr (ibfd
).contents
8602 != (unsigned char *) locsyms
))
8609 if (h
->root
.type
== bfd_link_hash_defined
8610 || h
->root
.type
== bfd_link_hash_defweak
)
8611 value
= h
->root
.u
.def
.value
;
8612 else if (h
->root
.type
== bfd_link_hash_undefweak
)
8616 found_tls_get_addr_arg
= 0;
8621 /* Symbols referenced by TLS relocs must be of type
8622 STT_TLS. So no need for .opd local sym adjust. */
8623 value
= sym
->st_value
;
8632 && h
->root
.type
== bfd_link_hash_undefweak
)
8634 else if (sym_sec
!= NULL
8635 && sym_sec
->output_section
!= NULL
)
8637 value
+= sym_sec
->output_offset
;
8638 value
+= sym_sec
->output_section
->vma
;
8639 value
-= htab
->elf
.tls_sec
->vma
;
8640 ok_tprel
= (value
+ TP_OFFSET
+ ((bfd_vma
) 1 << 31)
8641 < (bfd_vma
) 1 << 32);
8645 r_type
= ELF64_R_TYPE (rel
->r_info
);
8646 /* If this section has old-style __tls_get_addr calls
8647 without marker relocs, then check that each
8648 __tls_get_addr call reloc is preceded by a reloc
8649 that conceivably belongs to the __tls_get_addr arg
8650 setup insn. If we don't find matching arg setup
8651 relocs, don't do any tls optimization. */
8653 && sec
->has_tls_get_addr_call
8655 && (h
== &htab
->tls_get_addr
->elf
8656 || h
== &htab
->tls_get_addr_fd
->elf
)
8657 && !found_tls_get_addr_arg
8658 && is_branch_reloc (r_type
))
8660 info
->callbacks
->minfo (_("%H __tls_get_addr lost arg, "
8661 "TLS optimization disabled\n"),
8662 ibfd
, sec
, rel
->r_offset
);
8667 found_tls_get_addr_arg
= 0;
8670 case R_PPC64_GOT_TLSLD16
:
8671 case R_PPC64_GOT_TLSLD16_LO
:
8672 expecting_tls_get_addr
= 1;
8673 found_tls_get_addr_arg
= 1;
8676 case R_PPC64_GOT_TLSLD16_HI
:
8677 case R_PPC64_GOT_TLSLD16_HA
:
8678 /* These relocs should never be against a symbol
8679 defined in a shared lib. Leave them alone if
8680 that turns out to be the case. */
8687 tls_type
= TLS_TLS
| TLS_LD
;
8690 case R_PPC64_GOT_TLSGD16
:
8691 case R_PPC64_GOT_TLSGD16_LO
:
8692 expecting_tls_get_addr
= 1;
8693 found_tls_get_addr_arg
= 1;
8696 case R_PPC64_GOT_TLSGD16_HI
:
8697 case R_PPC64_GOT_TLSGD16_HA
:
8703 tls_set
= TLS_TLS
| TLS_TPRELGD
;
8705 tls_type
= TLS_TLS
| TLS_GD
;
8708 case R_PPC64_GOT_TPREL16_DS
:
8709 case R_PPC64_GOT_TPREL16_LO_DS
:
8710 case R_PPC64_GOT_TPREL16_HI
:
8711 case R_PPC64_GOT_TPREL16_HA
:
8716 tls_clear
= TLS_TPREL
;
8717 tls_type
= TLS_TLS
| TLS_TPREL
;
8724 found_tls_get_addr_arg
= 1;
8729 case R_PPC64_TOC16_LO
:
8730 if (sym_sec
== NULL
|| sym_sec
!= toc
)
8733 /* Mark this toc entry as referenced by a TLS
8734 code sequence. We can do that now in the
8735 case of R_PPC64_TLS, and after checking for
8736 tls_get_addr for the TOC16 relocs. */
8737 if (toc_ref
== NULL
)
8738 toc_ref
= bfd_zmalloc (toc
->output_section
->rawsize
/ 8);
8739 if (toc_ref
== NULL
)
8743 value
= h
->root
.u
.def
.value
;
8745 value
= sym
->st_value
;
8746 value
+= rel
->r_addend
;
8749 BFD_ASSERT (value
< toc
->size
8750 && toc
->output_offset
% 8 == 0);
8751 toc_ref_index
= (value
+ toc
->output_offset
) / 8;
8752 if (r_type
== R_PPC64_TLS
8753 || r_type
== R_PPC64_TLSGD
8754 || r_type
== R_PPC64_TLSLD
)
8756 toc_ref
[toc_ref_index
] = 1;
8760 if (pass
!= 0 && toc_ref
[toc_ref_index
] == 0)
8765 expecting_tls_get_addr
= 2;
8768 case R_PPC64_TPREL64
:
8772 || !toc_ref
[(rel
->r_offset
+ toc
->output_offset
) / 8])
8777 tls_set
= TLS_EXPLICIT
;
8778 tls_clear
= TLS_TPREL
;
8783 case R_PPC64_DTPMOD64
:
8787 || !toc_ref
[(rel
->r_offset
+ toc
->output_offset
) / 8])
8789 if (rel
+ 1 < relend
8791 == ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
))
8792 && rel
[1].r_offset
== rel
->r_offset
+ 8)
8796 tls_set
= TLS_EXPLICIT
| TLS_GD
;
8799 tls_set
= TLS_EXPLICIT
| TLS_GD
| TLS_TPRELGD
;
8808 tls_set
= TLS_EXPLICIT
;
8819 if (!expecting_tls_get_addr
8820 || !sec
->has_tls_get_addr_call
)
8823 if (rel
+ 1 < relend
8824 && branch_reloc_hash_match (ibfd
, rel
+ 1,
8826 htab
->tls_get_addr_fd
))
8828 if (expecting_tls_get_addr
== 2)
8830 /* Check for toc tls entries. */
8831 unsigned char *toc_tls
;
8834 retval
= get_tls_mask (&toc_tls
, NULL
, NULL
,
8839 if (toc_tls
!= NULL
)
8841 if ((*toc_tls
& (TLS_GD
| TLS_LD
)) != 0)
8842 found_tls_get_addr_arg
= 1;
8844 toc_ref
[toc_ref_index
] = 1;
8850 if (expecting_tls_get_addr
!= 1)
8853 /* Uh oh, we didn't find the expected call. We
8854 could just mark this symbol to exclude it
8855 from tls optimization but it's safer to skip
8856 the entire optimization. */
8857 /* xgettext:c-format */
8858 info
->callbacks
->minfo (_("%H arg lost __tls_get_addr, "
8859 "TLS optimization disabled\n"),
8860 ibfd
, sec
, rel
->r_offset
);
8865 if (expecting_tls_get_addr
&& htab
->tls_get_addr
!= NULL
)
8867 struct plt_entry
*ent
;
8868 for (ent
= htab
->tls_get_addr
->elf
.plt
.plist
;
8871 if (ent
->addend
== 0)
8873 if (ent
->plt
.refcount
> 0)
8875 ent
->plt
.refcount
-= 1;
8876 expecting_tls_get_addr
= 0;
8882 if (expecting_tls_get_addr
&& htab
->tls_get_addr_fd
!= NULL
)
8884 struct plt_entry
*ent
;
8885 for (ent
= htab
->tls_get_addr_fd
->elf
.plt
.plist
;
8888 if (ent
->addend
== 0)
8890 if (ent
->plt
.refcount
> 0)
8891 ent
->plt
.refcount
-= 1;
8899 if ((tls_set
& TLS_EXPLICIT
) == 0)
8901 struct got_entry
*ent
;
8903 /* Adjust got entry for this reloc. */
8907 ent
= elf_local_got_ents (ibfd
)[r_symndx
];
8909 for (; ent
!= NULL
; ent
= ent
->next
)
8910 if (ent
->addend
== rel
->r_addend
8911 && ent
->owner
== ibfd
8912 && ent
->tls_type
== tls_type
)
8919 /* We managed to get rid of a got entry. */
8920 if (ent
->got
.refcount
> 0)
8921 ent
->got
.refcount
-= 1;
8926 /* If we got rid of a DTPMOD/DTPREL reloc pair then
8927 we'll lose one or two dyn relocs. */
8928 if (!dec_dynrel_count (rel
->r_info
, sec
, info
,
8932 if (tls_set
== (TLS_EXPLICIT
| TLS_GD
))
8934 if (!dec_dynrel_count ((rel
+ 1)->r_info
, sec
, info
,
8940 *tls_mask
|= tls_set
;
8941 *tls_mask
&= ~tls_clear
;
8944 if (elf_section_data (sec
)->relocs
!= relstart
)
8949 && (elf_symtab_hdr (ibfd
).contents
!= (unsigned char *) locsyms
))
8951 if (!info
->keep_memory
)
8954 elf_symtab_hdr (ibfd
).contents
= (unsigned char *) locsyms
;
8958 if (toc_ref
!= NULL
)
8960 htab
->do_tls_opt
= 1;
8964 /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
8965 the values of any global symbols in a toc section that has been
8966 edited. Globals in toc sections should be a rarity, so this function
8967 sets a flag if any are found in toc sections other than the one just
8968 edited, so that further hash table traversals can be avoided. */
8970 struct adjust_toc_info
8973 unsigned long *skip
;
8974 bfd_boolean global_toc_syms
;
8977 enum toc_skip_enum
{ ref_from_discarded
= 1, can_optimize
= 2 };
8980 adjust_toc_syms (struct elf_link_hash_entry
*h
, void *inf
)
8982 struct ppc_link_hash_entry
*eh
;
8983 struct adjust_toc_info
*toc_inf
= (struct adjust_toc_info
*) inf
;
8986 if (h
->root
.type
!= bfd_link_hash_defined
8987 && h
->root
.type
!= bfd_link_hash_defweak
)
8990 eh
= (struct ppc_link_hash_entry
*) h
;
8991 if (eh
->adjust_done
)
8994 if (eh
->elf
.root
.u
.def
.section
== toc_inf
->toc
)
8996 if (eh
->elf
.root
.u
.def
.value
> toc_inf
->toc
->rawsize
)
8997 i
= toc_inf
->toc
->rawsize
>> 3;
8999 i
= eh
->elf
.root
.u
.def
.value
>> 3;
9001 if ((toc_inf
->skip
[i
] & (ref_from_discarded
| can_optimize
)) != 0)
9004 (_("%s defined on removed toc entry"), eh
->elf
.root
.root
.string
);
9007 while ((toc_inf
->skip
[i
] & (ref_from_discarded
| can_optimize
)) != 0);
9008 eh
->elf
.root
.u
.def
.value
= (bfd_vma
) i
<< 3;
9011 eh
->elf
.root
.u
.def
.value
-= toc_inf
->skip
[i
];
9012 eh
->adjust_done
= 1;
9014 else if (strcmp (eh
->elf
.root
.u
.def
.section
->name
, ".toc") == 0)
9015 toc_inf
->global_toc_syms
= TRUE
;
9020 /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect
9021 on a _LO variety toc/got reloc. */
9024 ok_lo_toc_insn (unsigned int insn
, enum elf_ppc64_reloc_type r_type
)
9026 return ((insn
& (0x3f << 26)) == 12u << 26 /* addic */
9027 || (insn
& (0x3f << 26)) == 14u << 26 /* addi */
9028 || (insn
& (0x3f << 26)) == 32u << 26 /* lwz */
9029 || (insn
& (0x3f << 26)) == 34u << 26 /* lbz */
9030 || (insn
& (0x3f << 26)) == 36u << 26 /* stw */
9031 || (insn
& (0x3f << 26)) == 38u << 26 /* stb */
9032 || (insn
& (0x3f << 26)) == 40u << 26 /* lhz */
9033 || (insn
& (0x3f << 26)) == 42u << 26 /* lha */
9034 || (insn
& (0x3f << 26)) == 44u << 26 /* sth */
9035 || (insn
& (0x3f << 26)) == 46u << 26 /* lmw */
9036 || (insn
& (0x3f << 26)) == 47u << 26 /* stmw */
9037 || (insn
& (0x3f << 26)) == 48u << 26 /* lfs */
9038 || (insn
& (0x3f << 26)) == 50u << 26 /* lfd */
9039 || (insn
& (0x3f << 26)) == 52u << 26 /* stfs */
9040 || (insn
& (0x3f << 26)) == 54u << 26 /* stfd */
9041 || (insn
& (0x3f << 26)) == 56u << 26 /* lq,lfq */
9042 || ((insn
& (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */
9043 /* Exclude lfqu by testing reloc. If relocs are ever
9044 defined for the reduced D field in psq_lu then those
9045 will need testing too. */
9046 && r_type
!= R_PPC64_TOC16_LO
&& r_type
!= R_PPC64_GOT16_LO
)
9047 || ((insn
& (0x3f << 26)) == 58u << 26 /* ld,lwa */
9049 || (insn
& (0x3f << 26)) == 60u << 26 /* stfq */
9050 || ((insn
& (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */
9051 /* Exclude stfqu. psq_stu as above for psq_lu. */
9052 && r_type
!= R_PPC64_TOC16_LO
&& r_type
!= R_PPC64_GOT16_LO
)
9053 || ((insn
& (0x3f << 26)) == 62u << 26 /* std,stq */
9054 && (insn
& 1) == 0));
9057 /* Examine all relocs referencing .toc sections in order to remove
9058 unused .toc entries. */
9061 ppc64_elf_edit_toc (struct bfd_link_info
*info
)
9064 struct adjust_toc_info toc_inf
;
9065 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
9067 htab
->do_toc_opt
= 1;
9068 toc_inf
.global_toc_syms
= TRUE
;
9069 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
9071 asection
*toc
, *sec
;
9072 Elf_Internal_Shdr
*symtab_hdr
;
9073 Elf_Internal_Sym
*local_syms
;
9074 Elf_Internal_Rela
*relstart
, *rel
, *toc_relocs
;
9075 unsigned long *skip
, *drop
;
9076 unsigned char *used
;
9077 unsigned char *keep
, last
, some_unused
;
9079 if (!is_ppc64_elf (ibfd
))
9082 toc
= bfd_get_section_by_name (ibfd
, ".toc");
9085 || toc
->sec_info_type
== SEC_INFO_TYPE_JUST_SYMS
9086 || discarded_section (toc
))
9091 symtab_hdr
= &elf_symtab_hdr (ibfd
);
9093 /* Look at sections dropped from the final link. */
9096 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
9098 if (sec
->reloc_count
== 0
9099 || !discarded_section (sec
)
9100 || get_opd_info (sec
)
9101 || (sec
->flags
& SEC_ALLOC
) == 0
9102 || (sec
->flags
& SEC_DEBUGGING
) != 0)
9105 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
, FALSE
);
9106 if (relstart
== NULL
)
9109 /* Run through the relocs to see which toc entries might be
9111 for (rel
= relstart
; rel
< relstart
+ sec
->reloc_count
; ++rel
)
9113 enum elf_ppc64_reloc_type r_type
;
9114 unsigned long r_symndx
;
9116 struct elf_link_hash_entry
*h
;
9117 Elf_Internal_Sym
*sym
;
9120 r_type
= ELF64_R_TYPE (rel
->r_info
);
9127 case R_PPC64_TOC16_LO
:
9128 case R_PPC64_TOC16_HI
:
9129 case R_PPC64_TOC16_HA
:
9130 case R_PPC64_TOC16_DS
:
9131 case R_PPC64_TOC16_LO_DS
:
9135 r_symndx
= ELF64_R_SYM (rel
->r_info
);
9136 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
9144 val
= h
->root
.u
.def
.value
;
9146 val
= sym
->st_value
;
9147 val
+= rel
->r_addend
;
9149 if (val
>= toc
->size
)
9152 /* Anything in the toc ought to be aligned to 8 bytes.
9153 If not, don't mark as unused. */
9159 skip
= bfd_zmalloc (sizeof (*skip
) * (toc
->size
+ 15) / 8);
9164 skip
[val
>> 3] = ref_from_discarded
;
9167 if (elf_section_data (sec
)->relocs
!= relstart
)
9171 /* For largetoc loads of address constants, we can convert
9172 . addis rx,2,addr@got@ha
9173 . ld ry,addr@got@l(rx)
9175 . addis rx,2,addr@toc@ha
9176 . addi ry,rx,addr@toc@l
9177 when addr is within 2G of the toc pointer. This then means
9178 that the word storing "addr" in the toc is no longer needed. */
9180 if (!ppc64_elf_tdata (ibfd
)->has_small_toc_reloc
9181 && toc
->output_section
->rawsize
< (bfd_vma
) 1 << 31
9182 && toc
->reloc_count
!= 0)
9184 /* Read toc relocs. */
9185 toc_relocs
= _bfd_elf_link_read_relocs (ibfd
, toc
, NULL
, NULL
,
9187 if (toc_relocs
== NULL
)
9190 for (rel
= toc_relocs
; rel
< toc_relocs
+ toc
->reloc_count
; ++rel
)
9192 enum elf_ppc64_reloc_type r_type
;
9193 unsigned long r_symndx
;
9195 struct elf_link_hash_entry
*h
;
9196 Elf_Internal_Sym
*sym
;
9199 r_type
= ELF64_R_TYPE (rel
->r_info
);
9200 if (r_type
!= R_PPC64_ADDR64
)
9203 r_symndx
= ELF64_R_SYM (rel
->r_info
);
9204 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
9209 || sym_sec
->output_section
== NULL
9210 || discarded_section (sym_sec
))
9213 if (!SYMBOL_REFERENCES_LOCAL (info
, h
))
9218 if (h
->type
== STT_GNU_IFUNC
)
9220 val
= h
->root
.u
.def
.value
;
9224 if (ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
)
9226 val
= sym
->st_value
;
9228 val
+= rel
->r_addend
;
9229 val
+= sym_sec
->output_section
->vma
+ sym_sec
->output_offset
;
9231 /* We don't yet know the exact toc pointer value, but we
9232 know it will be somewhere in the toc section. Don't
9233 optimize if the difference from any possible toc
9234 pointer is outside [ff..f80008000, 7fff7fff]. */
9235 addr
= toc
->output_section
->vma
+ TOC_BASE_OFF
;
9236 if (val
- addr
+ (bfd_vma
) 0x80008000 >= (bfd_vma
) 1 << 32)
9239 addr
= toc
->output_section
->vma
+ toc
->output_section
->rawsize
;
9240 if (val
- addr
+ (bfd_vma
) 0x80008000 >= (bfd_vma
) 1 << 32)
9245 skip
= bfd_zmalloc (sizeof (*skip
) * (toc
->size
+ 15) / 8);
9250 skip
[rel
->r_offset
>> 3]
9251 |= can_optimize
| ((rel
- toc_relocs
) << 2);
9258 used
= bfd_zmalloc (sizeof (*used
) * (toc
->size
+ 7) / 8);
9262 if (local_syms
!= NULL
9263 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
9267 && elf_section_data (sec
)->relocs
!= relstart
)
9269 if (toc_relocs
!= NULL
9270 && elf_section_data (toc
)->relocs
!= toc_relocs
)
9277 /* Now check all kept sections that might reference the toc.
9278 Check the toc itself last. */
9279 for (sec
= (ibfd
->sections
== toc
&& toc
->next
? toc
->next
9282 sec
= (sec
== toc
? NULL
9283 : sec
->next
== NULL
? toc
9284 : sec
->next
== toc
&& toc
->next
? toc
->next
9289 if (sec
->reloc_count
== 0
9290 || discarded_section (sec
)
9291 || get_opd_info (sec
)
9292 || (sec
->flags
& SEC_ALLOC
) == 0
9293 || (sec
->flags
& SEC_DEBUGGING
) != 0)
9296 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
9298 if (relstart
== NULL
)
9304 /* Mark toc entries referenced as used. */
9308 for (rel
= relstart
; rel
< relstart
+ sec
->reloc_count
; ++rel
)
9310 enum elf_ppc64_reloc_type r_type
;
9311 unsigned long r_symndx
;
9313 struct elf_link_hash_entry
*h
;
9314 Elf_Internal_Sym
*sym
;
9316 enum {no_check
, check_lo
, check_ha
} insn_check
;
9318 r_type
= ELF64_R_TYPE (rel
->r_info
);
9322 insn_check
= no_check
;
9325 case R_PPC64_GOT_TLSLD16_HA
:
9326 case R_PPC64_GOT_TLSGD16_HA
:
9327 case R_PPC64_GOT_TPREL16_HA
:
9328 case R_PPC64_GOT_DTPREL16_HA
:
9329 case R_PPC64_GOT16_HA
:
9330 case R_PPC64_TOC16_HA
:
9331 insn_check
= check_ha
;
9334 case R_PPC64_GOT_TLSLD16_LO
:
9335 case R_PPC64_GOT_TLSGD16_LO
:
9336 case R_PPC64_GOT_TPREL16_LO_DS
:
9337 case R_PPC64_GOT_DTPREL16_LO_DS
:
9338 case R_PPC64_GOT16_LO
:
9339 case R_PPC64_GOT16_LO_DS
:
9340 case R_PPC64_TOC16_LO
:
9341 case R_PPC64_TOC16_LO_DS
:
9342 insn_check
= check_lo
;
9346 if (insn_check
!= no_check
)
9348 bfd_vma off
= rel
->r_offset
& ~3;
9349 unsigned char buf
[4];
9352 if (!bfd_get_section_contents (ibfd
, sec
, buf
, off
, 4))
9357 insn
= bfd_get_32 (ibfd
, buf
);
9358 if (insn_check
== check_lo
9359 ? !ok_lo_toc_insn (insn
, r_type
)
9360 : ((insn
& ((0x3f << 26) | 0x1f << 16))
9361 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */))
9365 ppc64_elf_tdata (ibfd
)->unexpected_toc_insn
= 1;
9366 sprintf (str
, "%#08x", insn
);
9367 info
->callbacks
->einfo
9368 /* xgettext:c-format */
9369 (_("%H: toc optimization is not supported for"
9370 " %s instruction.\n"),
9371 ibfd
, sec
, rel
->r_offset
& ~3, str
);
9378 case R_PPC64_TOC16_LO
:
9379 case R_PPC64_TOC16_HI
:
9380 case R_PPC64_TOC16_HA
:
9381 case R_PPC64_TOC16_DS
:
9382 case R_PPC64_TOC16_LO_DS
:
9383 /* In case we're taking addresses of toc entries. */
9384 case R_PPC64_ADDR64
:
9391 r_symndx
= ELF64_R_SYM (rel
->r_info
);
9392 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
9403 val
= h
->root
.u
.def
.value
;
9405 val
= sym
->st_value
;
9406 val
+= rel
->r_addend
;
9408 if (val
>= toc
->size
)
9411 if ((skip
[val
>> 3] & can_optimize
) != 0)
9418 case R_PPC64_TOC16_HA
:
9421 case R_PPC64_TOC16_LO_DS
:
9422 off
= rel
->r_offset
;
9423 off
+= (bfd_big_endian (ibfd
) ? -2 : 3);
9424 if (!bfd_get_section_contents (ibfd
, sec
, &opc
,
9430 if ((opc
& (0x3f << 2)) == (58u << 2))
9435 /* Wrong sort of reloc, or not a ld. We may
9436 as well clear ref_from_discarded too. */
9443 /* For the toc section, we only mark as used if this
9444 entry itself isn't unused. */
9445 else if ((used
[rel
->r_offset
>> 3]
9446 || !(skip
[rel
->r_offset
>> 3] & ref_from_discarded
))
9449 /* Do all the relocs again, to catch reference
9458 if (elf_section_data (sec
)->relocs
!= relstart
)
9462 /* Merge the used and skip arrays. Assume that TOC
9463 doublewords not appearing as either used or unused belong
9464 to an entry more than one doubleword in size. */
9465 for (drop
= skip
, keep
= used
, last
= 0, some_unused
= 0;
9466 drop
< skip
+ (toc
->size
+ 7) / 8;
9471 *drop
&= ~ref_from_discarded
;
9472 if ((*drop
& can_optimize
) != 0)
9476 else if ((*drop
& ref_from_discarded
) != 0)
9479 last
= ref_from_discarded
;
9489 bfd_byte
*contents
, *src
;
9491 Elf_Internal_Sym
*sym
;
9492 bfd_boolean local_toc_syms
= FALSE
;
9494 /* Shuffle the toc contents, and at the same time convert the
9495 skip array from booleans into offsets. */
9496 if (!bfd_malloc_and_get_section (ibfd
, toc
, &contents
))
9499 elf_section_data (toc
)->this_hdr
.contents
= contents
;
9501 for (src
= contents
, off
= 0, drop
= skip
;
9502 src
< contents
+ toc
->size
;
9505 if ((*drop
& (can_optimize
| ref_from_discarded
)) != 0)
9510 memcpy (src
- off
, src
, 8);
9514 toc
->rawsize
= toc
->size
;
9515 toc
->size
= src
- contents
- off
;
9517 /* Adjust addends for relocs against the toc section sym,
9518 and optimize any accesses we can. */
9519 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
9521 if (sec
->reloc_count
== 0
9522 || discarded_section (sec
))
9525 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
9527 if (relstart
== NULL
)
9530 for (rel
= relstart
; rel
< relstart
+ sec
->reloc_count
; ++rel
)
9532 enum elf_ppc64_reloc_type r_type
;
9533 unsigned long r_symndx
;
9535 struct elf_link_hash_entry
*h
;
9538 r_type
= ELF64_R_TYPE (rel
->r_info
);
9545 case R_PPC64_TOC16_LO
:
9546 case R_PPC64_TOC16_HI
:
9547 case R_PPC64_TOC16_HA
:
9548 case R_PPC64_TOC16_DS
:
9549 case R_PPC64_TOC16_LO_DS
:
9550 case R_PPC64_ADDR64
:
9554 r_symndx
= ELF64_R_SYM (rel
->r_info
);
9555 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
9563 val
= h
->root
.u
.def
.value
;
9566 val
= sym
->st_value
;
9568 local_toc_syms
= TRUE
;
9571 val
+= rel
->r_addend
;
9573 if (val
> toc
->rawsize
)
9575 else if ((skip
[val
>> 3] & ref_from_discarded
) != 0)
9577 else if ((skip
[val
>> 3] & can_optimize
) != 0)
9579 Elf_Internal_Rela
*tocrel
9580 = toc_relocs
+ (skip
[val
>> 3] >> 2);
9581 unsigned long tsym
= ELF64_R_SYM (tocrel
->r_info
);
9585 case R_PPC64_TOC16_HA
:
9586 rel
->r_info
= ELF64_R_INFO (tsym
, R_PPC64_TOC16_HA
);
9589 case R_PPC64_TOC16_LO_DS
:
9590 rel
->r_info
= ELF64_R_INFO (tsym
, R_PPC64_LO_DS_OPT
);
9594 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
9596 info
->callbacks
->einfo
9597 /* xgettext:c-format */
9598 (_("%H: %s references "
9599 "optimized away TOC entry\n"),
9600 ibfd
, sec
, rel
->r_offset
,
9601 ppc64_elf_howto_table
[r_type
]->name
);
9602 bfd_set_error (bfd_error_bad_value
);
9605 rel
->r_addend
= tocrel
->r_addend
;
9606 elf_section_data (sec
)->relocs
= relstart
;
9610 if (h
!= NULL
|| sym
->st_value
!= 0)
9613 rel
->r_addend
-= skip
[val
>> 3];
9614 elf_section_data (sec
)->relocs
= relstart
;
9617 if (elf_section_data (sec
)->relocs
!= relstart
)
9621 /* We shouldn't have local or global symbols defined in the TOC,
9622 but handle them anyway. */
9623 if (local_syms
!= NULL
)
9624 for (sym
= local_syms
;
9625 sym
< local_syms
+ symtab_hdr
->sh_info
;
9627 if (sym
->st_value
!= 0
9628 && bfd_section_from_elf_index (ibfd
, sym
->st_shndx
) == toc
)
9632 if (sym
->st_value
> toc
->rawsize
)
9633 i
= toc
->rawsize
>> 3;
9635 i
= sym
->st_value
>> 3;
9637 if ((skip
[i
] & (ref_from_discarded
| can_optimize
)) != 0)
9641 (_("%s defined on removed toc entry"),
9642 bfd_elf_sym_name (ibfd
, symtab_hdr
, sym
, NULL
));
9645 while ((skip
[i
] & (ref_from_discarded
| can_optimize
)));
9646 sym
->st_value
= (bfd_vma
) i
<< 3;
9649 sym
->st_value
-= skip
[i
];
9650 symtab_hdr
->contents
= (unsigned char *) local_syms
;
9653 /* Adjust any global syms defined in this toc input section. */
9654 if (toc_inf
.global_toc_syms
)
9657 toc_inf
.skip
= skip
;
9658 toc_inf
.global_toc_syms
= FALSE
;
9659 elf_link_hash_traverse (elf_hash_table (info
), adjust_toc_syms
,
9663 if (toc
->reloc_count
!= 0)
9665 Elf_Internal_Shdr
*rel_hdr
;
9666 Elf_Internal_Rela
*wrel
;
9669 /* Remove unused toc relocs, and adjust those we keep. */
9670 if (toc_relocs
== NULL
)
9671 toc_relocs
= _bfd_elf_link_read_relocs (ibfd
, toc
, NULL
, NULL
,
9673 if (toc_relocs
== NULL
)
9677 for (rel
= toc_relocs
; rel
< toc_relocs
+ toc
->reloc_count
; ++rel
)
9678 if ((skip
[rel
->r_offset
>> 3]
9679 & (ref_from_discarded
| can_optimize
)) == 0)
9681 wrel
->r_offset
= rel
->r_offset
- skip
[rel
->r_offset
>> 3];
9682 wrel
->r_info
= rel
->r_info
;
9683 wrel
->r_addend
= rel
->r_addend
;
9686 else if (!dec_dynrel_count (rel
->r_info
, toc
, info
,
9687 &local_syms
, NULL
, NULL
))
9690 elf_section_data (toc
)->relocs
= toc_relocs
;
9691 toc
->reloc_count
= wrel
- toc_relocs
;
9692 rel_hdr
= _bfd_elf_single_rel_hdr (toc
);
9693 sz
= rel_hdr
->sh_entsize
;
9694 rel_hdr
->sh_size
= toc
->reloc_count
* sz
;
9697 else if (toc_relocs
!= NULL
9698 && elf_section_data (toc
)->relocs
!= toc_relocs
)
9701 if (local_syms
!= NULL
9702 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
9704 if (!info
->keep_memory
)
9707 symtab_hdr
->contents
= (unsigned char *) local_syms
;
9715 /* Return true iff input section I references the TOC using
9716 instructions limited to +/-32k offsets. */
9719 ppc64_elf_has_small_toc_reloc (asection
*i
)
9721 return (is_ppc64_elf (i
->owner
)
9722 && ppc64_elf_tdata (i
->owner
)->has_small_toc_reloc
);
9725 /* Allocate space for one GOT entry. */
9728 allocate_got (struct elf_link_hash_entry
*h
,
9729 struct bfd_link_info
*info
,
9730 struct got_entry
*gent
)
9732 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
9733 struct ppc_link_hash_entry
*eh
= (struct ppc_link_hash_entry
*) h
;
9734 int entsize
= (gent
->tls_type
& eh
->tls_mask
& (TLS_GD
| TLS_LD
)
9736 int rentsize
= (gent
->tls_type
& eh
->tls_mask
& TLS_GD
9737 ? 2 : 1) * sizeof (Elf64_External_Rela
);
9738 asection
*got
= ppc64_elf_tdata (gent
->owner
)->got
;
9740 gent
->got
.offset
= got
->size
;
9741 got
->size
+= entsize
;
9743 if (h
->type
== STT_GNU_IFUNC
)
9745 htab
->elf
.irelplt
->size
+= rentsize
;
9746 htab
->got_reli_size
+= rentsize
;
9748 else if ((bfd_link_pic (info
)
9749 || (htab
->elf
.dynamic_sections_created
9751 && !SYMBOL_REFERENCES_LOCAL (info
, h
)))
9752 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
9754 asection
*relgot
= ppc64_elf_tdata (gent
->owner
)->relgot
;
9755 relgot
->size
+= rentsize
;
9759 /* This function merges got entries in the same toc group. */
9762 merge_got_entries (struct got_entry
**pent
)
9764 struct got_entry
*ent
, *ent2
;
9766 for (ent
= *pent
; ent
!= NULL
; ent
= ent
->next
)
9767 if (!ent
->is_indirect
)
9768 for (ent2
= ent
->next
; ent2
!= NULL
; ent2
= ent2
->next
)
9769 if (!ent2
->is_indirect
9770 && ent2
->addend
== ent
->addend
9771 && ent2
->tls_type
== ent
->tls_type
9772 && elf_gp (ent2
->owner
) == elf_gp (ent
->owner
))
9774 ent2
->is_indirect
= TRUE
;
9775 ent2
->got
.ent
= ent
;
9779 /* If H is undefined, make it dynamic if that makes sense. */
9782 ensure_undef_dynamic (struct bfd_link_info
*info
,
9783 struct elf_link_hash_entry
*h
)
9785 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
9787 if (htab
->dynamic_sections_created
9788 && ((info
->dynamic_undefined_weak
!= 0
9789 && h
->root
.type
== bfd_link_hash_undefweak
)
9790 || h
->root
.type
== bfd_link_hash_undefined
)
9793 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
9794 return bfd_elf_link_record_dynamic_symbol (info
, h
);
9798 /* Allocate space in .plt, .got and associated reloc sections for
9802 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
9804 struct bfd_link_info
*info
;
9805 struct ppc_link_hash_table
*htab
;
9807 struct ppc_link_hash_entry
*eh
;
9808 struct got_entry
**pgent
, *gent
;
9810 if (h
->root
.type
== bfd_link_hash_indirect
)
9813 info
= (struct bfd_link_info
*) inf
;
9814 htab
= ppc_hash_table (info
);
9818 eh
= (struct ppc_link_hash_entry
*) h
;
9819 /* Run through the TLS GD got entries first if we're changing them
9821 if ((eh
->tls_mask
& TLS_TPRELGD
) != 0)
9822 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
9823 if (gent
->got
.refcount
> 0
9824 && (gent
->tls_type
& TLS_GD
) != 0)
9826 /* This was a GD entry that has been converted to TPREL. If
9827 there happens to be a TPREL entry we can use that one. */
9828 struct got_entry
*ent
;
9829 for (ent
= h
->got
.glist
; ent
!= NULL
; ent
= ent
->next
)
9830 if (ent
->got
.refcount
> 0
9831 && (ent
->tls_type
& TLS_TPREL
) != 0
9832 && ent
->addend
== gent
->addend
9833 && ent
->owner
== gent
->owner
)
9835 gent
->got
.refcount
= 0;
9839 /* If not, then we'll be using our own TPREL entry. */
9840 if (gent
->got
.refcount
!= 0)
9841 gent
->tls_type
= TLS_TLS
| TLS_TPREL
;
9844 /* Remove any list entry that won't generate a word in the GOT before
9845 we call merge_got_entries. Otherwise we risk merging to empty
9847 pgent
= &h
->got
.glist
;
9848 while ((gent
= *pgent
) != NULL
)
9849 if (gent
->got
.refcount
> 0)
9851 if ((gent
->tls_type
& TLS_LD
) != 0
9854 ppc64_tlsld_got (gent
->owner
)->got
.refcount
+= 1;
9855 *pgent
= gent
->next
;
9858 pgent
= &gent
->next
;
9861 *pgent
= gent
->next
;
9863 if (!htab
->do_multi_toc
)
9864 merge_got_entries (&h
->got
.glist
);
9866 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
9867 if (!gent
->is_indirect
)
9869 /* Make sure this symbol is output as a dynamic symbol. */
9870 if (!ensure_undef_dynamic (info
, h
))
9873 if (!is_ppc64_elf (gent
->owner
))
9876 allocate_got (h
, info
, gent
);
9879 /* If no dynamic sections we can't have dynamic relocs, except for
9880 IFUNCs which are handled even in static executables. */
9881 if (!htab
->elf
.dynamic_sections_created
9882 && h
->type
!= STT_GNU_IFUNC
)
9883 eh
->dyn_relocs
= NULL
;
9885 /* Also discard relocs on undefined weak syms with non-default
9886 visibility, or when dynamic_undefined_weak says so. */
9887 else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
9888 eh
->dyn_relocs
= NULL
;
9890 if (eh
->dyn_relocs
!= NULL
)
9892 struct elf_dyn_relocs
*p
, **pp
;
9894 /* In the shared -Bsymbolic case, discard space allocated for
9895 dynamic pc-relative relocs against symbols which turn out to
9896 be defined in regular objects. For the normal shared case,
9897 discard space for relocs that have become local due to symbol
9898 visibility changes. */
9900 if (bfd_link_pic (info
))
9902 /* Relocs that use pc_count are those that appear on a call
9903 insn, or certain REL relocs (see must_be_dyn_reloc) that
9904 can be generated via assembly. We want calls to
9905 protected symbols to resolve directly to the function
9906 rather than going via the plt. If people want function
9907 pointer comparisons to work as expected then they should
9908 avoid writing weird assembly. */
9909 if (SYMBOL_CALLS_LOCAL (info
, h
))
9911 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
9913 p
->count
-= p
->pc_count
;
9922 if (eh
->dyn_relocs
!= NULL
)
9924 /* Make sure this symbol is output as a dynamic symbol. */
9925 if (!ensure_undef_dynamic (info
, h
))
9929 else if (h
->type
== STT_GNU_IFUNC
)
9931 /* A plt entry is always created when making direct calls to
9932 an ifunc, even when building a static executable, but
9933 that doesn't cover all cases. We may have only an ifunc
9934 initialised function pointer for a given ifunc symbol.
9936 For ELFv2, dynamic relocations are not required when
9937 generating a global entry PLT stub. */
9938 if (abiversion (info
->output_bfd
) >= 2)
9940 if (global_entry_stub (h
))
9941 eh
->dyn_relocs
= NULL
;
9944 /* For ELFv1 we have function descriptors. Descriptors need
9945 to be treated like PLT entries and thus have dynamic
9946 relocations. One exception is when the function
9947 descriptor is copied into .dynbss (which should only
9948 happen with ancient versions of gcc). */
9949 else if (h
->needs_copy
)
9950 eh
->dyn_relocs
= NULL
;
9952 else if (ELIMINATE_COPY_RELOCS
)
9954 /* For the non-pic case, discard space for relocs against
9955 symbols which turn out to need copy relocs or are not
9960 /* Make sure this symbol is output as a dynamic symbol. */
9961 if (!ensure_undef_dynamic (info
, h
))
9964 if (h
->dynindx
== -1)
9965 eh
->dyn_relocs
= NULL
;
9968 eh
->dyn_relocs
= NULL
;
9971 /* Finally, allocate space. */
9972 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
9974 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
9975 if (eh
->elf
.type
== STT_GNU_IFUNC
)
9976 sreloc
= htab
->elf
.irelplt
;
9977 sreloc
->size
+= p
->count
* sizeof (Elf64_External_Rela
);
9981 if ((htab
->elf
.dynamic_sections_created
9982 && h
->dynindx
!= -1)
9983 || h
->type
== STT_GNU_IFUNC
)
9985 struct plt_entry
*pent
;
9986 bfd_boolean doneone
= FALSE
;
9987 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
9988 if (pent
->plt
.refcount
> 0)
9990 if (!htab
->elf
.dynamic_sections_created
9991 || h
->dynindx
== -1)
9994 pent
->plt
.offset
= s
->size
;
9995 s
->size
+= PLT_ENTRY_SIZE (htab
);
9996 s
= htab
->elf
.irelplt
;
10000 /* If this is the first .plt entry, make room for the special
10002 s
= htab
->elf
.splt
;
10004 s
->size
+= PLT_INITIAL_ENTRY_SIZE (htab
);
10006 pent
->plt
.offset
= s
->size
;
10008 /* Make room for this entry. */
10009 s
->size
+= PLT_ENTRY_SIZE (htab
);
10011 /* Make room for the .glink code. */
10014 s
->size
+= GLINK_CALL_STUB_SIZE
;
10017 /* We need bigger stubs past index 32767. */
10018 if (s
->size
>= GLINK_CALL_STUB_SIZE
+ 32768*2*4)
10025 /* We also need to make an entry in the .rela.plt section. */
10026 s
= htab
->elf
.srelplt
;
10028 s
->size
+= sizeof (Elf64_External_Rela
);
10032 pent
->plt
.offset
= (bfd_vma
) -1;
10035 h
->plt
.plist
= NULL
;
10041 h
->plt
.plist
= NULL
;
10048 /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections
10049 to set up space for global entry stubs. These are put in glink,
10050 after the branch table. */
10053 size_global_entry_stubs (struct elf_link_hash_entry
*h
, void *inf
)
10055 struct bfd_link_info
*info
;
10056 struct ppc_link_hash_table
*htab
;
10057 struct plt_entry
*pent
;
10060 if (h
->root
.type
== bfd_link_hash_indirect
)
10063 if (!h
->pointer_equality_needed
)
10066 if (h
->def_regular
)
10070 htab
= ppc_hash_table (info
);
10075 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
10076 if (pent
->plt
.offset
!= (bfd_vma
) -1
10077 && pent
->addend
== 0)
10079 /* For ELFv2, if this symbol is not defined in a regular file
10080 and we are not generating a shared library or pie, then we
10081 need to define the symbol in the executable on a call stub.
10082 This is to avoid text relocations. */
10083 s
->size
= (s
->size
+ 15) & -16;
10084 h
->root
.type
= bfd_link_hash_defined
;
10085 h
->root
.u
.def
.section
= s
;
10086 h
->root
.u
.def
.value
= s
->size
;
10093 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
10094 read-only sections. */
10097 maybe_set_textrel (struct elf_link_hash_entry
*h
, void *info
)
10099 if (h
->root
.type
== bfd_link_hash_indirect
)
10102 if (readonly_dynrelocs (h
))
10104 ((struct bfd_link_info
*) info
)->flags
|= DF_TEXTREL
;
10106 /* Not an error, just cut short the traversal. */
10112 /* Set the sizes of the dynamic sections. */
10115 ppc64_elf_size_dynamic_sections (bfd
*output_bfd
,
10116 struct bfd_link_info
*info
)
10118 struct ppc_link_hash_table
*htab
;
10121 bfd_boolean relocs
;
10123 struct got_entry
*first_tlsld
;
10125 htab
= ppc_hash_table (info
);
10129 dynobj
= htab
->elf
.dynobj
;
10130 if (dynobj
== NULL
)
10133 if (htab
->elf
.dynamic_sections_created
)
10135 /* Set the contents of the .interp section to the interpreter. */
10136 if (bfd_link_executable (info
) && !info
->nointerp
)
10138 s
= bfd_get_linker_section (dynobj
, ".interp");
10141 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
10142 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
10146 /* Set up .got offsets for local syms, and space for local dynamic
10148 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
10150 struct got_entry
**lgot_ents
;
10151 struct got_entry
**end_lgot_ents
;
10152 struct plt_entry
**local_plt
;
10153 struct plt_entry
**end_local_plt
;
10154 unsigned char *lgot_masks
;
10155 bfd_size_type locsymcount
;
10156 Elf_Internal_Shdr
*symtab_hdr
;
10158 if (!is_ppc64_elf (ibfd
))
10161 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
10163 struct ppc_dyn_relocs
*p
;
10165 for (p
= elf_section_data (s
)->local_dynrel
; p
!= NULL
; p
= p
->next
)
10167 if (!bfd_is_abs_section (p
->sec
)
10168 && bfd_is_abs_section (p
->sec
->output_section
))
10170 /* Input section has been discarded, either because
10171 it is a copy of a linkonce section or due to
10172 linker script /DISCARD/, so we'll be discarding
10175 else if (p
->count
!= 0)
10177 asection
*srel
= elf_section_data (p
->sec
)->sreloc
;
10179 srel
= htab
->elf
.irelplt
;
10180 srel
->size
+= p
->count
* sizeof (Elf64_External_Rela
);
10181 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
10182 info
->flags
|= DF_TEXTREL
;
10187 lgot_ents
= elf_local_got_ents (ibfd
);
10191 symtab_hdr
= &elf_symtab_hdr (ibfd
);
10192 locsymcount
= symtab_hdr
->sh_info
;
10193 end_lgot_ents
= lgot_ents
+ locsymcount
;
10194 local_plt
= (struct plt_entry
**) end_lgot_ents
;
10195 end_local_plt
= local_plt
+ locsymcount
;
10196 lgot_masks
= (unsigned char *) end_local_plt
;
10197 s
= ppc64_elf_tdata (ibfd
)->got
;
10198 for (; lgot_ents
< end_lgot_ents
; ++lgot_ents
, ++lgot_masks
)
10200 struct got_entry
**pent
, *ent
;
10203 while ((ent
= *pent
) != NULL
)
10204 if (ent
->got
.refcount
> 0)
10206 if ((ent
->tls_type
& *lgot_masks
& TLS_LD
) != 0)
10208 ppc64_tlsld_got (ibfd
)->got
.refcount
+= 1;
10213 unsigned int ent_size
= 8;
10214 unsigned int rel_size
= sizeof (Elf64_External_Rela
);
10216 ent
->got
.offset
= s
->size
;
10217 if ((ent
->tls_type
& *lgot_masks
& TLS_GD
) != 0)
10222 s
->size
+= ent_size
;
10223 if ((*lgot_masks
& PLT_IFUNC
) != 0)
10225 htab
->elf
.irelplt
->size
+= rel_size
;
10226 htab
->got_reli_size
+= rel_size
;
10228 else if (bfd_link_pic (info
))
10230 asection
*srel
= ppc64_elf_tdata (ibfd
)->relgot
;
10231 srel
->size
+= rel_size
;
10240 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
10241 for (; local_plt
< end_local_plt
; ++local_plt
)
10243 struct plt_entry
*ent
;
10245 for (ent
= *local_plt
; ent
!= NULL
; ent
= ent
->next
)
10246 if (ent
->plt
.refcount
> 0)
10248 s
= htab
->elf
.iplt
;
10249 ent
->plt
.offset
= s
->size
;
10250 s
->size
+= PLT_ENTRY_SIZE (htab
);
10252 htab
->elf
.irelplt
->size
+= sizeof (Elf64_External_Rela
);
10255 ent
->plt
.offset
= (bfd_vma
) -1;
10259 /* Allocate global sym .plt and .got entries, and space for global
10260 sym dynamic relocs. */
10261 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, info
);
10262 /* Stash the end of glink branch table. */
10263 if (htab
->glink
!= NULL
)
10264 htab
->glink
->rawsize
= htab
->glink
->size
;
10266 if (!htab
->opd_abi
&& !bfd_link_pic (info
))
10267 elf_link_hash_traverse (&htab
->elf
, size_global_entry_stubs
, info
);
10269 first_tlsld
= NULL
;
10270 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
10272 struct got_entry
*ent
;
10274 if (!is_ppc64_elf (ibfd
))
10277 ent
= ppc64_tlsld_got (ibfd
);
10278 if (ent
->got
.refcount
> 0)
10280 if (!htab
->do_multi_toc
&& first_tlsld
!= NULL
)
10282 ent
->is_indirect
= TRUE
;
10283 ent
->got
.ent
= first_tlsld
;
10287 if (first_tlsld
== NULL
)
10289 s
= ppc64_elf_tdata (ibfd
)->got
;
10290 ent
->got
.offset
= s
->size
;
10293 if (bfd_link_pic (info
))
10295 asection
*srel
= ppc64_elf_tdata (ibfd
)->relgot
;
10296 srel
->size
+= sizeof (Elf64_External_Rela
);
10301 ent
->got
.offset
= (bfd_vma
) -1;
10304 /* We now have determined the sizes of the various dynamic sections.
10305 Allocate memory for them. */
10307 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
10309 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
10312 if (s
== htab
->brlt
|| s
== htab
->relbrlt
)
10313 /* These haven't been allocated yet; don't strip. */
10315 else if (s
== htab
->elf
.sgot
10316 || s
== htab
->elf
.splt
10317 || s
== htab
->elf
.iplt
10318 || s
== htab
->glink
10319 || s
== htab
->elf
.sdynbss
10320 || s
== htab
->elf
.sdynrelro
)
10322 /* Strip this section if we don't need it; see the
10325 else if (s
== htab
->glink_eh_frame
)
10327 if (!bfd_is_abs_section (s
->output_section
))
10328 /* Not sized yet. */
10331 else if (CONST_STRNEQ (s
->name
, ".rela"))
10335 if (s
!= htab
->elf
.srelplt
)
10338 /* We use the reloc_count field as a counter if we need
10339 to copy relocs into the output file. */
10340 s
->reloc_count
= 0;
10345 /* It's not one of our sections, so don't allocate space. */
10351 /* If we don't need this section, strip it from the
10352 output file. This is mostly to handle .rela.bss and
10353 .rela.plt. We must create both sections in
10354 create_dynamic_sections, because they must be created
10355 before the linker maps input sections to output
10356 sections. The linker does that before
10357 adjust_dynamic_symbol is called, and it is that
10358 function which decides whether anything needs to go
10359 into these sections. */
10360 s
->flags
|= SEC_EXCLUDE
;
10364 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
10367 /* Allocate memory for the section contents. We use bfd_zalloc
10368 here in case unused entries are not reclaimed before the
10369 section's contents are written out. This should not happen,
10370 but this way if it does we get a R_PPC64_NONE reloc in .rela
10371 sections instead of garbage.
10372 We also rely on the section contents being zero when writing
10373 the GOT and .dynrelro. */
10374 s
->contents
= bfd_zalloc (dynobj
, s
->size
);
10375 if (s
->contents
== NULL
)
10379 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
10381 if (!is_ppc64_elf (ibfd
))
10384 s
= ppc64_elf_tdata (ibfd
)->got
;
10385 if (s
!= NULL
&& s
!= htab
->elf
.sgot
)
10388 s
->flags
|= SEC_EXCLUDE
;
10391 s
->contents
= bfd_zalloc (ibfd
, s
->size
);
10392 if (s
->contents
== NULL
)
10396 s
= ppc64_elf_tdata (ibfd
)->relgot
;
10400 s
->flags
|= SEC_EXCLUDE
;
10403 s
->contents
= bfd_zalloc (ibfd
, s
->size
);
10404 if (s
->contents
== NULL
)
10407 s
->reloc_count
= 0;
10412 if (htab
->elf
.dynamic_sections_created
)
10414 bfd_boolean tls_opt
;
10416 /* Add some entries to the .dynamic section. We fill in the
10417 values later, in ppc64_elf_finish_dynamic_sections, but we
10418 must add the entries now so that we get the correct size for
10419 the .dynamic section. The DT_DEBUG entry is filled in by the
10420 dynamic linker and used by the debugger. */
10421 #define add_dynamic_entry(TAG, VAL) \
10422 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
10424 if (bfd_link_executable (info
))
10426 if (!add_dynamic_entry (DT_DEBUG
, 0))
10430 if (htab
->elf
.splt
!= NULL
&& htab
->elf
.splt
->size
!= 0)
10432 if (!add_dynamic_entry (DT_PLTGOT
, 0)
10433 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
10434 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
10435 || !add_dynamic_entry (DT_JMPREL
, 0)
10436 || !add_dynamic_entry (DT_PPC64_GLINK
, 0))
10440 if (NO_OPD_RELOCS
&& abiversion (output_bfd
) <= 1)
10442 if (!add_dynamic_entry (DT_PPC64_OPD
, 0)
10443 || !add_dynamic_entry (DT_PPC64_OPDSZ
, 0))
10447 tls_opt
= (htab
->params
->tls_get_addr_opt
10448 && htab
->tls_get_addr_fd
!= NULL
10449 && htab
->tls_get_addr_fd
->elf
.plt
.plist
!= NULL
);
10450 if (tls_opt
|| !htab
->opd_abi
)
10452 if (!add_dynamic_entry (DT_PPC64_OPT
, tls_opt
? PPC64_OPT_TLS
: 0))
10458 if (!add_dynamic_entry (DT_RELA
, 0)
10459 || !add_dynamic_entry (DT_RELASZ
, 0)
10460 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf64_External_Rela
)))
10463 /* If any dynamic relocs apply to a read-only section,
10464 then we need a DT_TEXTREL entry. */
10465 if ((info
->flags
& DF_TEXTREL
) == 0)
10466 elf_link_hash_traverse (&htab
->elf
, maybe_set_textrel
, info
);
10468 if ((info
->flags
& DF_TEXTREL
) != 0)
10470 if (!add_dynamic_entry (DT_TEXTREL
, 0))
10475 #undef add_dynamic_entry
10480 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
10483 ppc64_elf_hash_symbol (struct elf_link_hash_entry
*h
)
10485 if (h
->plt
.plist
!= NULL
10487 && !h
->pointer_equality_needed
)
10490 return _bfd_elf_hash_symbol (h
);
10493 /* Determine the type of stub needed, if any, for a call. */
10495 static inline enum ppc_stub_type
10496 ppc_type_of_stub (asection
*input_sec
,
10497 const Elf_Internal_Rela
*rel
,
10498 struct ppc_link_hash_entry
**hash
,
10499 struct plt_entry
**plt_ent
,
10500 bfd_vma destination
,
10501 unsigned long local_off
)
10503 struct ppc_link_hash_entry
*h
= *hash
;
10505 bfd_vma branch_offset
;
10506 bfd_vma max_branch_offset
;
10507 enum elf_ppc64_reloc_type r_type
;
10511 struct plt_entry
*ent
;
10512 struct ppc_link_hash_entry
*fdh
= h
;
10514 && h
->oh
->is_func_descriptor
)
10516 fdh
= ppc_follow_link (h
->oh
);
10520 for (ent
= fdh
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
10521 if (ent
->addend
== rel
->r_addend
10522 && ent
->plt
.offset
!= (bfd_vma
) -1)
10525 return ppc_stub_plt_call
;
10528 /* Here, we know we don't have a plt entry. If we don't have a
10529 either a defined function descriptor or a defined entry symbol
10530 in a regular object file, then it is pointless trying to make
10531 any other type of stub. */
10532 if (!is_static_defined (&fdh
->elf
)
10533 && !is_static_defined (&h
->elf
))
10534 return ppc_stub_none
;
10536 else if (elf_local_got_ents (input_sec
->owner
) != NULL
)
10538 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (input_sec
->owner
);
10539 struct plt_entry
**local_plt
= (struct plt_entry
**)
10540 elf_local_got_ents (input_sec
->owner
) + symtab_hdr
->sh_info
;
10541 unsigned long r_symndx
= ELF64_R_SYM (rel
->r_info
);
10543 if (local_plt
[r_symndx
] != NULL
)
10545 struct plt_entry
*ent
;
10547 for (ent
= local_plt
[r_symndx
]; ent
!= NULL
; ent
= ent
->next
)
10548 if (ent
->addend
== rel
->r_addend
10549 && ent
->plt
.offset
!= (bfd_vma
) -1)
10552 return ppc_stub_plt_call
;
10557 /* Determine where the call point is. */
10558 location
= (input_sec
->output_offset
10559 + input_sec
->output_section
->vma
10562 branch_offset
= destination
- location
;
10563 r_type
= ELF64_R_TYPE (rel
->r_info
);
10565 /* Determine if a long branch stub is needed. */
10566 max_branch_offset
= 1 << 25;
10567 if (r_type
!= R_PPC64_REL24
)
10568 max_branch_offset
= 1 << 15;
10570 if (branch_offset
+ max_branch_offset
>= 2 * max_branch_offset
- local_off
)
10571 /* We need a stub. Figure out whether a long_branch or plt_branch
10572 is needed later. */
10573 return ppc_stub_long_branch
;
10575 return ppc_stub_none
;
10578 /* With power7 weakly ordered memory model, it is possible for ld.so
10579 to update a plt entry in one thread and have another thread see a
10580 stale zero toc entry. To avoid this we need some sort of acquire
10581 barrier in the call stub. One solution is to make the load of the
10582 toc word seem to appear to depend on the load of the function entry
10583 word. Another solution is to test for r2 being zero, and branch to
10584 the appropriate glink entry if so.
10586 . fake dep barrier compare
10587 . ld 12,xxx(2) ld 12,xxx(2)
10588 . mtctr 12 mtctr 12
10589 . xor 11,12,12 ld 2,xxx+8(2)
10590 . add 2,2,11 cmpldi 2,0
10591 . ld 2,xxx+8(2) bnectr+
10592 . bctr b <glink_entry>
10594 The solution involving the compare turns out to be faster, so
10595 that's what we use unless the branch won't reach. */
10597 #define ALWAYS_USE_FAKE_DEP 0
10598 #define ALWAYS_EMIT_R2SAVE 0
10600 #define PPC_LO(v) ((v) & 0xffff)
10601 #define PPC_HI(v) (((v) >> 16) & 0xffff)
10602 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
10604 static inline unsigned int
10605 plt_stub_size (struct ppc_link_hash_table
*htab
,
10606 struct ppc_stub_hash_entry
*stub_entry
,
10609 unsigned size
= 12;
10611 if (ALWAYS_EMIT_R2SAVE
10612 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
10614 if (PPC_HA (off
) != 0)
10619 if (htab
->params
->plt_static_chain
)
10621 if (htab
->params
->plt_thread_safe
10622 && htab
->elf
.dynamic_sections_created
10623 && stub_entry
->h
!= NULL
10624 && stub_entry
->h
->elf
.dynindx
!= -1)
10626 if (PPC_HA (off
+ 8 + 8 * htab
->params
->plt_static_chain
) != PPC_HA (off
))
10629 if (stub_entry
->h
!= NULL
10630 && (stub_entry
->h
== htab
->tls_get_addr_fd
10631 || stub_entry
->h
== htab
->tls_get_addr
)
10632 && htab
->params
->tls_get_addr_opt
)
10635 if (ALWAYS_EMIT_R2SAVE
10636 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
10642 /* Depending on the sign of plt_stub_align:
10643 If positive, return the padding to align to a 2**plt_stub_align
10645 If negative, if this stub would cross fewer 2**plt_stub_align
10646 boundaries if we align, then return the padding needed to do so. */
10648 static inline unsigned int
10649 plt_stub_pad (struct ppc_link_hash_table
*htab
,
10650 struct ppc_stub_hash_entry
*stub_entry
,
10654 unsigned stub_size
= plt_stub_size (htab
, stub_entry
, plt_off
);
10655 bfd_vma stub_off
= stub_entry
->group
->stub_sec
->size
;
10657 if (htab
->params
->plt_stub_align
>= 0)
10659 stub_align
= 1 << htab
->params
->plt_stub_align
;
10660 if ((stub_off
& (stub_align
- 1)) != 0)
10661 return stub_align
- (stub_off
& (stub_align
- 1));
10665 stub_align
= 1 << -htab
->params
->plt_stub_align
;
10666 if (((stub_off
+ stub_size
- 1) & -stub_align
) - (stub_off
& -stub_align
)
10667 > ((stub_size
- 1) & -stub_align
))
10668 return stub_align
- (stub_off
& (stub_align
- 1));
10672 /* Build a .plt call stub. */
10674 static inline bfd_byte
*
10675 build_plt_stub (struct ppc_link_hash_table
*htab
,
10676 struct ppc_stub_hash_entry
*stub_entry
,
10677 bfd_byte
*p
, bfd_vma offset
, Elf_Internal_Rela
*r
)
10679 bfd
*obfd
= htab
->params
->stub_bfd
;
10680 bfd_boolean plt_load_toc
= htab
->opd_abi
;
10681 bfd_boolean plt_static_chain
= htab
->params
->plt_static_chain
;
10682 bfd_boolean plt_thread_safe
= (htab
->params
->plt_thread_safe
10683 && htab
->elf
.dynamic_sections_created
10684 && stub_entry
->h
!= NULL
10685 && stub_entry
->h
->elf
.dynindx
!= -1);
10686 bfd_boolean use_fake_dep
= plt_thread_safe
;
10687 bfd_vma cmp_branch_off
= 0;
10689 if (!ALWAYS_USE_FAKE_DEP
10692 && !((stub_entry
->h
== htab
->tls_get_addr_fd
10693 || stub_entry
->h
== htab
->tls_get_addr
)
10694 && htab
->params
->tls_get_addr_opt
))
10696 bfd_vma pltoff
= stub_entry
->plt_ent
->plt
.offset
& ~1;
10697 bfd_vma pltindex
= ((pltoff
- PLT_INITIAL_ENTRY_SIZE (htab
))
10698 / PLT_ENTRY_SIZE (htab
));
10699 bfd_vma glinkoff
= GLINK_CALL_STUB_SIZE
+ pltindex
* 8;
10702 if (pltindex
> 32768)
10703 glinkoff
+= (pltindex
- 32768) * 4;
10705 + htab
->glink
->output_offset
10706 + htab
->glink
->output_section
->vma
);
10707 from
= (p
- stub_entry
->group
->stub_sec
->contents
10708 + 4 * (ALWAYS_EMIT_R2SAVE
10709 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
10710 + 4 * (PPC_HA (offset
) != 0)
10711 + 4 * (PPC_HA (offset
+ 8 + 8 * plt_static_chain
)
10712 != PPC_HA (offset
))
10713 + 4 * (plt_static_chain
!= 0)
10715 + stub_entry
->group
->stub_sec
->output_offset
10716 + stub_entry
->group
->stub_sec
->output_section
->vma
);
10717 cmp_branch_off
= to
- from
;
10718 use_fake_dep
= cmp_branch_off
+ (1 << 25) >= (1 << 26);
10721 if (PPC_HA (offset
) != 0)
10725 if (ALWAYS_EMIT_R2SAVE
10726 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
10727 r
[0].r_offset
+= 4;
10728 r
[0].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_HA
);
10729 r
[1].r_offset
= r
[0].r_offset
+ 4;
10730 r
[1].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS
);
10731 r
[1].r_addend
= r
[0].r_addend
;
10734 if (PPC_HA (offset
+ 8 + 8 * plt_static_chain
) != PPC_HA (offset
))
10736 r
[2].r_offset
= r
[1].r_offset
+ 4;
10737 r
[2].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_LO
);
10738 r
[2].r_addend
= r
[0].r_addend
;
10742 r
[2].r_offset
= r
[1].r_offset
+ 8 + 8 * use_fake_dep
;
10743 r
[2].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS
);
10744 r
[2].r_addend
= r
[0].r_addend
+ 8;
10745 if (plt_static_chain
)
10747 r
[3].r_offset
= r
[2].r_offset
+ 4;
10748 r
[3].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS
);
10749 r
[3].r_addend
= r
[0].r_addend
+ 16;
10754 if (ALWAYS_EMIT_R2SAVE
10755 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
10756 bfd_put_32 (obfd
, STD_R2_0R1
+ STK_TOC (htab
), p
), p
+= 4;
10759 bfd_put_32 (obfd
, ADDIS_R11_R2
| PPC_HA (offset
), p
), p
+= 4;
10760 bfd_put_32 (obfd
, LD_R12_0R11
| PPC_LO (offset
), p
), p
+= 4;
10764 bfd_put_32 (obfd
, ADDIS_R12_R2
| PPC_HA (offset
), p
), p
+= 4;
10765 bfd_put_32 (obfd
, LD_R12_0R12
| PPC_LO (offset
), p
), p
+= 4;
10768 && PPC_HA (offset
+ 8 + 8 * plt_static_chain
) != PPC_HA (offset
))
10770 bfd_put_32 (obfd
, ADDI_R11_R11
| PPC_LO (offset
), p
), p
+= 4;
10773 bfd_put_32 (obfd
, MTCTR_R12
, p
), p
+= 4;
10778 bfd_put_32 (obfd
, XOR_R2_R12_R12
, p
), p
+= 4;
10779 bfd_put_32 (obfd
, ADD_R11_R11_R2
, p
), p
+= 4;
10781 bfd_put_32 (obfd
, LD_R2_0R11
| PPC_LO (offset
+ 8), p
), p
+= 4;
10782 if (plt_static_chain
)
10783 bfd_put_32 (obfd
, LD_R11_0R11
| PPC_LO (offset
+ 16), p
), p
+= 4;
10790 if (ALWAYS_EMIT_R2SAVE
10791 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
10792 r
[0].r_offset
+= 4;
10793 r
[0].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_DS
);
10796 if (PPC_HA (offset
+ 8 + 8 * plt_static_chain
) != PPC_HA (offset
))
10798 r
[1].r_offset
= r
[0].r_offset
+ 4;
10799 r
[1].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16
);
10800 r
[1].r_addend
= r
[0].r_addend
;
10804 r
[1].r_offset
= r
[0].r_offset
+ 8 + 8 * use_fake_dep
;
10805 r
[1].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_DS
);
10806 r
[1].r_addend
= r
[0].r_addend
+ 8 + 8 * plt_static_chain
;
10807 if (plt_static_chain
)
10809 r
[2].r_offset
= r
[1].r_offset
+ 4;
10810 r
[2].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_DS
);
10811 r
[2].r_addend
= r
[0].r_addend
+ 8;
10816 if (ALWAYS_EMIT_R2SAVE
10817 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
10818 bfd_put_32 (obfd
, STD_R2_0R1
+ STK_TOC (htab
), p
), p
+= 4;
10819 bfd_put_32 (obfd
, LD_R12_0R2
| PPC_LO (offset
), p
), p
+= 4;
10821 && PPC_HA (offset
+ 8 + 8 * plt_static_chain
) != PPC_HA (offset
))
10823 bfd_put_32 (obfd
, ADDI_R2_R2
| PPC_LO (offset
), p
), p
+= 4;
10826 bfd_put_32 (obfd
, MTCTR_R12
, p
), p
+= 4;
10831 bfd_put_32 (obfd
, XOR_R11_R12_R12
, p
), p
+= 4;
10832 bfd_put_32 (obfd
, ADD_R2_R2_R11
, p
), p
+= 4;
10834 if (plt_static_chain
)
10835 bfd_put_32 (obfd
, LD_R11_0R2
| PPC_LO (offset
+ 16), p
), p
+= 4;
10836 bfd_put_32 (obfd
, LD_R2_0R2
| PPC_LO (offset
+ 8), p
), p
+= 4;
10839 if (plt_load_toc
&& plt_thread_safe
&& !use_fake_dep
)
10841 bfd_put_32 (obfd
, CMPLDI_R2_0
, p
), p
+= 4;
10842 bfd_put_32 (obfd
, BNECTR_P4
, p
), p
+= 4;
10843 bfd_put_32 (obfd
, B_DOT
| (cmp_branch_off
& 0x3fffffc), p
), p
+= 4;
10846 bfd_put_32 (obfd
, BCTR
, p
), p
+= 4;
10850 /* Build a special .plt call stub for __tls_get_addr. */
10852 #define LD_R11_0R3 0xe9630000
10853 #define LD_R12_0R3 0xe9830000
10854 #define MR_R0_R3 0x7c601b78
10855 #define CMPDI_R11_0 0x2c2b0000
10856 #define ADD_R3_R12_R13 0x7c6c6a14
10857 #define BEQLR 0x4d820020
10858 #define MR_R3_R0 0x7c030378
10859 #define STD_R11_0R1 0xf9610000
10860 #define BCTRL 0x4e800421
10861 #define LD_R11_0R1 0xe9610000
10862 #define MTLR_R11 0x7d6803a6
10864 static inline bfd_byte
*
10865 build_tls_get_addr_stub (struct ppc_link_hash_table
*htab
,
10866 struct ppc_stub_hash_entry
*stub_entry
,
10867 bfd_byte
*p
, bfd_vma offset
, Elf_Internal_Rela
*r
)
10869 bfd
*obfd
= htab
->params
->stub_bfd
;
10871 bfd_put_32 (obfd
, LD_R11_0R3
+ 0, p
), p
+= 4;
10872 bfd_put_32 (obfd
, LD_R12_0R3
+ 8, p
), p
+= 4;
10873 bfd_put_32 (obfd
, MR_R0_R3
, p
), p
+= 4;
10874 bfd_put_32 (obfd
, CMPDI_R11_0
, p
), p
+= 4;
10875 bfd_put_32 (obfd
, ADD_R3_R12_R13
, p
), p
+= 4;
10876 bfd_put_32 (obfd
, BEQLR
, p
), p
+= 4;
10877 bfd_put_32 (obfd
, MR_R3_R0
, p
), p
+= 4;
10879 r
[0].r_offset
+= 7 * 4;
10880 if (!ALWAYS_EMIT_R2SAVE
10881 && stub_entry
->stub_type
!= ppc_stub_plt_call_r2save
)
10882 return build_plt_stub (htab
, stub_entry
, p
, offset
, r
);
10884 bfd_put_32 (obfd
, MFLR_R11
, p
), p
+= 4;
10885 bfd_put_32 (obfd
, STD_R11_0R1
+ STK_LINKER (htab
), p
), p
+= 4;
10888 r
[0].r_offset
+= 2 * 4;
10889 p
= build_plt_stub (htab
, stub_entry
, p
, offset
, r
);
10890 bfd_put_32 (obfd
, BCTRL
, p
- 4);
10892 bfd_put_32 (obfd
, LD_R2_0R1
+ STK_TOC (htab
), p
), p
+= 4;
10893 bfd_put_32 (obfd
, LD_R11_0R1
+ STK_LINKER (htab
), p
), p
+= 4;
10894 bfd_put_32 (obfd
, MTLR_R11
, p
), p
+= 4;
10895 bfd_put_32 (obfd
, BLR
, p
), p
+= 4;
10900 static Elf_Internal_Rela
*
10901 get_relocs (asection
*sec
, int count
)
10903 Elf_Internal_Rela
*relocs
;
10904 struct bfd_elf_section_data
*elfsec_data
;
10906 elfsec_data
= elf_section_data (sec
);
10907 relocs
= elfsec_data
->relocs
;
10908 if (relocs
== NULL
)
10910 bfd_size_type relsize
;
10911 relsize
= sec
->reloc_count
* sizeof (*relocs
);
10912 relocs
= bfd_alloc (sec
->owner
, relsize
);
10913 if (relocs
== NULL
)
10915 elfsec_data
->relocs
= relocs
;
10916 elfsec_data
->rela
.hdr
= bfd_zalloc (sec
->owner
,
10917 sizeof (Elf_Internal_Shdr
));
10918 if (elfsec_data
->rela
.hdr
== NULL
)
10920 elfsec_data
->rela
.hdr
->sh_size
= (sec
->reloc_count
10921 * sizeof (Elf64_External_Rela
));
10922 elfsec_data
->rela
.hdr
->sh_entsize
= sizeof (Elf64_External_Rela
);
10923 sec
->reloc_count
= 0;
10925 relocs
+= sec
->reloc_count
;
10926 sec
->reloc_count
+= count
;
10931 get_r2off (struct bfd_link_info
*info
,
10932 struct ppc_stub_hash_entry
*stub_entry
)
10934 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
10935 bfd_vma r2off
= htab
->sec_info
[stub_entry
->target_section
->id
].toc_off
;
10939 /* Support linking -R objects. Get the toc pointer from the
10942 if (!htab
->opd_abi
)
10944 asection
*opd
= stub_entry
->h
->elf
.root
.u
.def
.section
;
10945 bfd_vma opd_off
= stub_entry
->h
->elf
.root
.u
.def
.value
;
10947 if (strcmp (opd
->name
, ".opd") != 0
10948 || opd
->reloc_count
!= 0)
10950 info
->callbacks
->einfo (_("%P: cannot find opd entry toc for `%T'\n"),
10951 stub_entry
->h
->elf
.root
.root
.string
);
10952 bfd_set_error (bfd_error_bad_value
);
10953 return (bfd_vma
) -1;
10955 if (!bfd_get_section_contents (opd
->owner
, opd
, buf
, opd_off
+ 8, 8))
10956 return (bfd_vma
) -1;
10957 r2off
= bfd_get_64 (opd
->owner
, buf
);
10958 r2off
-= elf_gp (info
->output_bfd
);
10960 r2off
-= htab
->sec_info
[stub_entry
->group
->link_sec
->id
].toc_off
;
10965 ppc_build_one_stub (struct bfd_hash_entry
*gen_entry
, void *in_arg
)
10967 struct ppc_stub_hash_entry
*stub_entry
;
10968 struct ppc_branch_hash_entry
*br_entry
;
10969 struct bfd_link_info
*info
;
10970 struct ppc_link_hash_table
*htab
;
10975 Elf_Internal_Rela
*r
;
10978 /* Massage our args to the form they really have. */
10979 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
10982 htab
= ppc_hash_table (info
);
10986 /* Make a note of the offset within the stubs for this entry. */
10987 stub_entry
->stub_offset
= stub_entry
->group
->stub_sec
->size
;
10988 loc
= stub_entry
->group
->stub_sec
->contents
+ stub_entry
->stub_offset
;
10990 htab
->stub_count
[stub_entry
->stub_type
- 1] += 1;
10991 switch (stub_entry
->stub_type
)
10993 case ppc_stub_long_branch
:
10994 case ppc_stub_long_branch_r2off
:
10995 /* Branches are relative. This is where we are going to. */
10996 dest
= (stub_entry
->target_value
10997 + stub_entry
->target_section
->output_offset
10998 + stub_entry
->target_section
->output_section
->vma
);
10999 dest
+= PPC64_LOCAL_ENTRY_OFFSET (stub_entry
->other
);
11002 /* And this is where we are coming from. */
11003 off
-= (stub_entry
->stub_offset
11004 + stub_entry
->group
->stub_sec
->output_offset
11005 + stub_entry
->group
->stub_sec
->output_section
->vma
);
11008 if (stub_entry
->stub_type
== ppc_stub_long_branch_r2off
)
11010 bfd_vma r2off
= get_r2off (info
, stub_entry
);
11012 if (r2off
== (bfd_vma
) -1)
11014 htab
->stub_error
= TRUE
;
11017 bfd_put_32 (htab
->params
->stub_bfd
, STD_R2_0R1
+ STK_TOC (htab
), loc
);
11020 if (PPC_HA (r2off
) != 0)
11022 bfd_put_32 (htab
->params
->stub_bfd
,
11023 ADDIS_R2_R2
| PPC_HA (r2off
), loc
);
11027 if (PPC_LO (r2off
) != 0)
11029 bfd_put_32 (htab
->params
->stub_bfd
,
11030 ADDI_R2_R2
| PPC_LO (r2off
), loc
);
11036 bfd_put_32 (htab
->params
->stub_bfd
, B_DOT
| (off
& 0x3fffffc), loc
);
11038 if (off
+ (1 << 25) >= (bfd_vma
) (1 << 26))
11040 info
->callbacks
->einfo
11041 (_("%P: long branch stub `%s' offset overflow\n"),
11042 stub_entry
->root
.string
);
11043 htab
->stub_error
= TRUE
;
11047 if (info
->emitrelocations
)
11049 r
= get_relocs (stub_entry
->group
->stub_sec
, 1);
11052 r
->r_offset
= loc
- stub_entry
->group
->stub_sec
->contents
;
11053 r
->r_info
= ELF64_R_INFO (0, R_PPC64_REL24
);
11054 r
->r_addend
= dest
;
11055 if (stub_entry
->h
!= NULL
)
11057 struct elf_link_hash_entry
**hashes
;
11058 unsigned long symndx
;
11059 struct ppc_link_hash_entry
*h
;
11061 hashes
= elf_sym_hashes (htab
->params
->stub_bfd
);
11062 if (hashes
== NULL
)
11064 bfd_size_type hsize
;
11066 hsize
= (htab
->stub_globals
+ 1) * sizeof (*hashes
);
11067 hashes
= bfd_zalloc (htab
->params
->stub_bfd
, hsize
);
11068 if (hashes
== NULL
)
11070 elf_sym_hashes (htab
->params
->stub_bfd
) = hashes
;
11071 htab
->stub_globals
= 1;
11073 symndx
= htab
->stub_globals
++;
11075 hashes
[symndx
] = &h
->elf
;
11076 r
->r_info
= ELF64_R_INFO (symndx
, R_PPC64_REL24
);
11077 if (h
->oh
!= NULL
&& h
->oh
->is_func
)
11078 h
= ppc_follow_link (h
->oh
);
11079 if (h
->elf
.root
.u
.def
.section
!= stub_entry
->target_section
)
11080 /* H is an opd symbol. The addend must be zero. */
11084 off
= (h
->elf
.root
.u
.def
.value
11085 + h
->elf
.root
.u
.def
.section
->output_offset
11086 + h
->elf
.root
.u
.def
.section
->output_section
->vma
);
11087 r
->r_addend
-= off
;
11093 case ppc_stub_plt_branch
:
11094 case ppc_stub_plt_branch_r2off
:
11095 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
11096 stub_entry
->root
.string
+ 9,
11098 if (br_entry
== NULL
)
11100 info
->callbacks
->einfo (_("%P: can't find branch stub `%s'\n"),
11101 stub_entry
->root
.string
);
11102 htab
->stub_error
= TRUE
;
11106 dest
= (stub_entry
->target_value
11107 + stub_entry
->target_section
->output_offset
11108 + stub_entry
->target_section
->output_section
->vma
);
11109 if (stub_entry
->stub_type
!= ppc_stub_plt_branch_r2off
)
11110 dest
+= PPC64_LOCAL_ENTRY_OFFSET (stub_entry
->other
);
11112 bfd_put_64 (htab
->brlt
->owner
, dest
,
11113 htab
->brlt
->contents
+ br_entry
->offset
);
11115 if (br_entry
->iter
== htab
->stub_iteration
)
11117 br_entry
->iter
= 0;
11119 if (htab
->relbrlt
!= NULL
)
11121 /* Create a reloc for the branch lookup table entry. */
11122 Elf_Internal_Rela rela
;
11125 rela
.r_offset
= (br_entry
->offset
11126 + htab
->brlt
->output_offset
11127 + htab
->brlt
->output_section
->vma
);
11128 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
11129 rela
.r_addend
= dest
;
11131 rl
= htab
->relbrlt
->contents
;
11132 rl
+= (htab
->relbrlt
->reloc_count
++
11133 * sizeof (Elf64_External_Rela
));
11134 bfd_elf64_swap_reloca_out (htab
->relbrlt
->owner
, &rela
, rl
);
11136 else if (info
->emitrelocations
)
11138 r
= get_relocs (htab
->brlt
, 1);
11141 /* brlt, being SEC_LINKER_CREATED does not go through the
11142 normal reloc processing. Symbols and offsets are not
11143 translated from input file to output file form, so
11144 set up the offset per the output file. */
11145 r
->r_offset
= (br_entry
->offset
11146 + htab
->brlt
->output_offset
11147 + htab
->brlt
->output_section
->vma
);
11148 r
->r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
11149 r
->r_addend
= dest
;
11153 dest
= (br_entry
->offset
11154 + htab
->brlt
->output_offset
11155 + htab
->brlt
->output_section
->vma
);
11158 - elf_gp (htab
->brlt
->output_section
->owner
)
11159 - htab
->sec_info
[stub_entry
->group
->link_sec
->id
].toc_off
);
11161 if (off
+ 0x80008000 > 0xffffffff || (off
& 7) != 0)
11163 info
->callbacks
->einfo
11164 (_("%P: linkage table error against `%T'\n"),
11165 stub_entry
->root
.string
);
11166 bfd_set_error (bfd_error_bad_value
);
11167 htab
->stub_error
= TRUE
;
11171 if (info
->emitrelocations
)
11173 r
= get_relocs (stub_entry
->group
->stub_sec
, 1 + (PPC_HA (off
) != 0));
11176 r
[0].r_offset
= loc
- stub_entry
->group
->stub_sec
->contents
;
11177 if (bfd_big_endian (info
->output_bfd
))
11178 r
[0].r_offset
+= 2;
11179 if (stub_entry
->stub_type
== ppc_stub_plt_branch_r2off
)
11180 r
[0].r_offset
+= 4;
11181 r
[0].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_DS
);
11182 r
[0].r_addend
= dest
;
11183 if (PPC_HA (off
) != 0)
11185 r
[0].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_HA
);
11186 r
[1].r_offset
= r
[0].r_offset
+ 4;
11187 r
[1].r_info
= ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS
);
11188 r
[1].r_addend
= r
[0].r_addend
;
11192 if (stub_entry
->stub_type
!= ppc_stub_plt_branch_r2off
)
11194 if (PPC_HA (off
) != 0)
11197 bfd_put_32 (htab
->params
->stub_bfd
,
11198 ADDIS_R12_R2
| PPC_HA (off
), loc
);
11200 bfd_put_32 (htab
->params
->stub_bfd
,
11201 LD_R12_0R12
| PPC_LO (off
), loc
);
11206 bfd_put_32 (htab
->params
->stub_bfd
,
11207 LD_R12_0R2
| PPC_LO (off
), loc
);
11212 bfd_vma r2off
= get_r2off (info
, stub_entry
);
11214 if (r2off
== (bfd_vma
) -1)
11216 htab
->stub_error
= TRUE
;
11220 bfd_put_32 (htab
->params
->stub_bfd
, STD_R2_0R1
+ STK_TOC (htab
), loc
);
11223 if (PPC_HA (off
) != 0)
11226 bfd_put_32 (htab
->params
->stub_bfd
,
11227 ADDIS_R12_R2
| PPC_HA (off
), loc
);
11229 bfd_put_32 (htab
->params
->stub_bfd
,
11230 LD_R12_0R12
| PPC_LO (off
), loc
);
11233 bfd_put_32 (htab
->params
->stub_bfd
, LD_R12_0R2
| PPC_LO (off
), loc
);
11235 if (PPC_HA (r2off
) != 0)
11239 bfd_put_32 (htab
->params
->stub_bfd
,
11240 ADDIS_R2_R2
| PPC_HA (r2off
), loc
);
11242 if (PPC_LO (r2off
) != 0)
11246 bfd_put_32 (htab
->params
->stub_bfd
,
11247 ADDI_R2_R2
| PPC_LO (r2off
), loc
);
11251 bfd_put_32 (htab
->params
->stub_bfd
, MTCTR_R12
, loc
);
11253 bfd_put_32 (htab
->params
->stub_bfd
, BCTR
, loc
);
11256 case ppc_stub_plt_call
:
11257 case ppc_stub_plt_call_r2save
:
11258 if (stub_entry
->h
!= NULL
11259 && stub_entry
->h
->is_func_descriptor
11260 && stub_entry
->h
->oh
!= NULL
)
11262 struct ppc_link_hash_entry
*fh
= ppc_follow_link (stub_entry
->h
->oh
);
11264 /* If the old-ABI "dot-symbol" is undefined make it weak so
11265 we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */
11266 if (fh
->elf
.root
.type
== bfd_link_hash_undefined
11267 && (stub_entry
->h
->elf
.root
.type
== bfd_link_hash_defined
11268 || stub_entry
->h
->elf
.root
.type
== bfd_link_hash_defweak
))
11269 fh
->elf
.root
.type
= bfd_link_hash_undefweak
;
11272 /* Now build the stub. */
11273 dest
= stub_entry
->plt_ent
->plt
.offset
& ~1;
11274 if (dest
>= (bfd_vma
) -2)
11277 plt
= htab
->elf
.splt
;
11278 if (!htab
->elf
.dynamic_sections_created
11279 || stub_entry
->h
== NULL
11280 || stub_entry
->h
->elf
.dynindx
== -1)
11281 plt
= htab
->elf
.iplt
;
11283 dest
+= plt
->output_offset
+ plt
->output_section
->vma
;
11285 if (stub_entry
->h
== NULL
11286 && (stub_entry
->plt_ent
->plt
.offset
& 1) == 0)
11288 Elf_Internal_Rela rela
;
11291 rela
.r_offset
= dest
;
11293 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_JMP_IREL
);
11295 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_IRELATIVE
);
11296 rela
.r_addend
= (stub_entry
->target_value
11297 + stub_entry
->target_section
->output_offset
11298 + stub_entry
->target_section
->output_section
->vma
);
11300 rl
= (htab
->elf
.irelplt
->contents
11301 + (htab
->elf
.irelplt
->reloc_count
++
11302 * sizeof (Elf64_External_Rela
)));
11303 bfd_elf64_swap_reloca_out (info
->output_bfd
, &rela
, rl
);
11304 stub_entry
->plt_ent
->plt
.offset
|= 1;
11305 htab
->local_ifunc_resolver
= 1;
11309 - elf_gp (plt
->output_section
->owner
)
11310 - htab
->sec_info
[stub_entry
->group
->link_sec
->id
].toc_off
);
11312 if (off
+ 0x80008000 > 0xffffffff || (off
& 7) != 0)
11314 info
->callbacks
->einfo
11315 /* xgettext:c-format */
11316 (_("%P: linkage table error against `%T'\n"),
11317 stub_entry
->h
!= NULL
11318 ? stub_entry
->h
->elf
.root
.root
.string
11320 bfd_set_error (bfd_error_bad_value
);
11321 htab
->stub_error
= TRUE
;
11325 if (htab
->params
->plt_stub_align
!= 0)
11327 unsigned pad
= plt_stub_pad (htab
, stub_entry
, off
);
11329 stub_entry
->group
->stub_sec
->size
+= pad
;
11330 stub_entry
->stub_offset
= stub_entry
->group
->stub_sec
->size
;
11335 if (info
->emitrelocations
)
11337 r
= get_relocs (stub_entry
->group
->stub_sec
,
11338 ((PPC_HA (off
) != 0)
11340 ? 2 + (htab
->params
->plt_static_chain
11341 && PPC_HA (off
+ 16) == PPC_HA (off
))
11345 r
[0].r_offset
= loc
- stub_entry
->group
->stub_sec
->contents
;
11346 if (bfd_big_endian (info
->output_bfd
))
11347 r
[0].r_offset
+= 2;
11348 r
[0].r_addend
= dest
;
11350 if (stub_entry
->h
!= NULL
11351 && (stub_entry
->h
== htab
->tls_get_addr_fd
11352 || stub_entry
->h
== htab
->tls_get_addr
)
11353 && htab
->params
->tls_get_addr_opt
)
11354 p
= build_tls_get_addr_stub (htab
, stub_entry
, loc
, off
, r
);
11356 p
= build_plt_stub (htab
, stub_entry
, loc
, off
, r
);
11360 case ppc_stub_save_res
:
11368 stub_entry
->group
->stub_sec
->size
+= size
;
11370 if (htab
->params
->emit_stub_syms
)
11372 struct elf_link_hash_entry
*h
;
11375 const char *const stub_str
[] = { "long_branch",
11376 "long_branch_r2off",
11378 "plt_branch_r2off",
11382 len1
= strlen (stub_str
[stub_entry
->stub_type
- 1]);
11383 len2
= strlen (stub_entry
->root
.string
);
11384 name
= bfd_malloc (len1
+ len2
+ 2);
11387 memcpy (name
, stub_entry
->root
.string
, 9);
11388 memcpy (name
+ 9, stub_str
[stub_entry
->stub_type
- 1], len1
);
11389 memcpy (name
+ len1
+ 9, stub_entry
->root
.string
+ 8, len2
- 8 + 1);
11390 h
= elf_link_hash_lookup (&htab
->elf
, name
, TRUE
, FALSE
, FALSE
);
11393 if (h
->root
.type
== bfd_link_hash_new
)
11395 h
->root
.type
= bfd_link_hash_defined
;
11396 h
->root
.u
.def
.section
= stub_entry
->group
->stub_sec
;
11397 h
->root
.u
.def
.value
= stub_entry
->stub_offset
;
11398 h
->ref_regular
= 1;
11399 h
->def_regular
= 1;
11400 h
->ref_regular_nonweak
= 1;
11401 h
->forced_local
= 1;
11403 h
->root
.linker_def
= 1;
11410 /* As above, but don't actually build the stub. Just bump offset so
11411 we know stub section sizes, and select plt_branch stubs where
11412 long_branch stubs won't do. */
11415 ppc_size_one_stub (struct bfd_hash_entry
*gen_entry
, void *in_arg
)
11417 struct ppc_stub_hash_entry
*stub_entry
;
11418 struct bfd_link_info
*info
;
11419 struct ppc_link_hash_table
*htab
;
11423 /* Massage our args to the form they really have. */
11424 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
11427 htab
= ppc_hash_table (info
);
11431 if (stub_entry
->h
!= NULL
11432 && stub_entry
->h
->save_res
11433 && stub_entry
->h
->elf
.root
.type
== bfd_link_hash_defined
11434 && stub_entry
->h
->elf
.root
.u
.def
.section
== htab
->sfpr
)
11436 /* Don't make stubs to out-of-line register save/restore
11437 functions. Instead, emit copies of the functions. */
11438 stub_entry
->group
->needs_save_res
= 1;
11439 stub_entry
->stub_type
= ppc_stub_save_res
;
11443 if (stub_entry
->stub_type
== ppc_stub_plt_call
11444 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
11447 off
= stub_entry
->plt_ent
->plt
.offset
& ~(bfd_vma
) 1;
11448 if (off
>= (bfd_vma
) -2)
11450 plt
= htab
->elf
.splt
;
11451 if (!htab
->elf
.dynamic_sections_created
11452 || stub_entry
->h
== NULL
11453 || stub_entry
->h
->elf
.dynindx
== -1)
11454 plt
= htab
->elf
.iplt
;
11455 off
+= (plt
->output_offset
11456 + plt
->output_section
->vma
11457 - elf_gp (plt
->output_section
->owner
)
11458 - htab
->sec_info
[stub_entry
->group
->link_sec
->id
].toc_off
);
11460 size
= plt_stub_size (htab
, stub_entry
, off
);
11461 if (stub_entry
->h
!= NULL
11462 && (stub_entry
->h
== htab
->tls_get_addr_fd
11463 || stub_entry
->h
== htab
->tls_get_addr
)
11464 && htab
->params
->tls_get_addr_opt
11465 && (ALWAYS_EMIT_R2SAVE
11466 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
))
11467 stub_entry
->group
->tls_get_addr_opt_bctrl
11468 = stub_entry
->group
->stub_sec
->size
+ size
- 5 * 4;
11470 if (htab
->params
->plt_stub_align
)
11471 size
+= plt_stub_pad (htab
, stub_entry
, off
);
11472 if (info
->emitrelocations
)
11474 stub_entry
->group
->stub_sec
->reloc_count
11475 += ((PPC_HA (off
) != 0)
11477 ? 2 + (htab
->params
->plt_static_chain
11478 && PPC_HA (off
+ 16) == PPC_HA (off
))
11480 stub_entry
->group
->stub_sec
->flags
|= SEC_RELOC
;
11485 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
11488 bfd_vma local_off
= 0;
11490 off
= (stub_entry
->target_value
11491 + stub_entry
->target_section
->output_offset
11492 + stub_entry
->target_section
->output_section
->vma
);
11493 off
-= (stub_entry
->group
->stub_sec
->size
11494 + stub_entry
->group
->stub_sec
->output_offset
11495 + stub_entry
->group
->stub_sec
->output_section
->vma
);
11497 /* Reset the stub type from the plt variant in case we now
11498 can reach with a shorter stub. */
11499 if (stub_entry
->stub_type
>= ppc_stub_plt_branch
)
11500 stub_entry
->stub_type
+= ppc_stub_long_branch
- ppc_stub_plt_branch
;
11503 if (stub_entry
->stub_type
== ppc_stub_long_branch_r2off
)
11505 r2off
= get_r2off (info
, stub_entry
);
11506 if (r2off
== (bfd_vma
) -1)
11508 htab
->stub_error
= TRUE
;
11512 if (PPC_HA (r2off
) != 0)
11514 if (PPC_LO (r2off
) != 0)
11519 local_off
= PPC64_LOCAL_ENTRY_OFFSET (stub_entry
->other
);
11521 /* If the branch offset if too big, use a ppc_stub_plt_branch.
11522 Do the same for -R objects without function descriptors. */
11523 if (off
+ (1 << 25) >= (bfd_vma
) (1 << 26) - local_off
11524 || (stub_entry
->stub_type
== ppc_stub_long_branch_r2off
11526 && htab
->sec_info
[stub_entry
->target_section
->id
].toc_off
== 0))
11528 struct ppc_branch_hash_entry
*br_entry
;
11530 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
11531 stub_entry
->root
.string
+ 9,
11533 if (br_entry
== NULL
)
11535 info
->callbacks
->einfo (_("%P: can't build branch stub `%s'\n"),
11536 stub_entry
->root
.string
);
11537 htab
->stub_error
= TRUE
;
11541 if (br_entry
->iter
!= htab
->stub_iteration
)
11543 br_entry
->iter
= htab
->stub_iteration
;
11544 br_entry
->offset
= htab
->brlt
->size
;
11545 htab
->brlt
->size
+= 8;
11547 if (htab
->relbrlt
!= NULL
)
11548 htab
->relbrlt
->size
+= sizeof (Elf64_External_Rela
);
11549 else if (info
->emitrelocations
)
11551 htab
->brlt
->reloc_count
+= 1;
11552 htab
->brlt
->flags
|= SEC_RELOC
;
11556 stub_entry
->stub_type
+= ppc_stub_plt_branch
- ppc_stub_long_branch
;
11557 off
= (br_entry
->offset
11558 + htab
->brlt
->output_offset
11559 + htab
->brlt
->output_section
->vma
11560 - elf_gp (htab
->brlt
->output_section
->owner
)
11561 - htab
->sec_info
[stub_entry
->group
->link_sec
->id
].toc_off
);
11563 if (info
->emitrelocations
)
11565 stub_entry
->group
->stub_sec
->reloc_count
11566 += 1 + (PPC_HA (off
) != 0);
11567 stub_entry
->group
->stub_sec
->flags
|= SEC_RELOC
;
11570 if (stub_entry
->stub_type
!= ppc_stub_plt_branch_r2off
)
11573 if (PPC_HA (off
) != 0)
11579 if (PPC_HA (off
) != 0)
11582 if (PPC_HA (r2off
) != 0)
11584 if (PPC_LO (r2off
) != 0)
11588 else if (info
->emitrelocations
)
11590 stub_entry
->group
->stub_sec
->reloc_count
+= 1;
11591 stub_entry
->group
->stub_sec
->flags
|= SEC_RELOC
;
11595 stub_entry
->group
->stub_sec
->size
+= size
;
11599 /* Set up various things so that we can make a list of input sections
11600 for each output section included in the link. Returns -1 on error,
11601 0 when no stubs will be needed, and 1 on success. */
11604 ppc64_elf_setup_section_lists (struct bfd_link_info
*info
)
11608 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
11613 htab
->sec_info_arr_size
= bfd_get_next_section_id ();
11614 amt
= sizeof (*htab
->sec_info
) * (htab
->sec_info_arr_size
);
11615 htab
->sec_info
= bfd_zmalloc (amt
);
11616 if (htab
->sec_info
== NULL
)
11619 /* Set toc_off for com, und, abs and ind sections. */
11620 for (id
= 0; id
< 3; id
++)
11621 htab
->sec_info
[id
].toc_off
= TOC_BASE_OFF
;
11626 /* Set up for first pass at multitoc partitioning. */
11629 ppc64_elf_start_multitoc_partition (struct bfd_link_info
*info
)
11631 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
11633 htab
->toc_curr
= ppc64_elf_set_toc (info
, info
->output_bfd
);
11634 htab
->toc_bfd
= NULL
;
11635 htab
->toc_first_sec
= NULL
;
11638 /* The linker repeatedly calls this function for each TOC input section
11639 and linker generated GOT section. Group input bfds such that the toc
11640 within a group is less than 64k in size. */
11643 ppc64_elf_next_toc_section (struct bfd_link_info
*info
, asection
*isec
)
11645 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
11646 bfd_vma addr
, off
, limit
;
11651 if (!htab
->second_toc_pass
)
11653 /* Keep track of the first .toc or .got section for this input bfd. */
11654 bfd_boolean new_bfd
= htab
->toc_bfd
!= isec
->owner
;
11658 htab
->toc_bfd
= isec
->owner
;
11659 htab
->toc_first_sec
= isec
;
11662 addr
= isec
->output_offset
+ isec
->output_section
->vma
;
11663 off
= addr
- htab
->toc_curr
;
11664 limit
= 0x80008000;
11665 if (ppc64_elf_tdata (isec
->owner
)->has_small_toc_reloc
)
11667 if (off
+ isec
->size
> limit
)
11669 addr
= (htab
->toc_first_sec
->output_offset
11670 + htab
->toc_first_sec
->output_section
->vma
);
11671 htab
->toc_curr
= addr
;
11672 htab
->toc_curr
&= -TOC_BASE_ALIGN
;
11675 /* toc_curr is the base address of this toc group. Set elf_gp
11676 for the input section to be the offset relative to the
11677 output toc base plus 0x8000. Making the input elf_gp an
11678 offset allows us to move the toc as a whole without
11679 recalculating input elf_gp. */
11680 off
= htab
->toc_curr
- elf_gp (isec
->output_section
->owner
);
11681 off
+= TOC_BASE_OFF
;
11683 /* Die if someone uses a linker script that doesn't keep input
11684 file .toc and .got together. */
11686 && elf_gp (isec
->owner
) != 0
11687 && elf_gp (isec
->owner
) != off
)
11690 elf_gp (isec
->owner
) = off
;
11694 /* During the second pass toc_first_sec points to the start of
11695 a toc group, and toc_curr is used to track the old elf_gp.
11696 We use toc_bfd to ensure we only look at each bfd once. */
11697 if (htab
->toc_bfd
== isec
->owner
)
11699 htab
->toc_bfd
= isec
->owner
;
11701 if (htab
->toc_first_sec
== NULL
11702 || htab
->toc_curr
!= elf_gp (isec
->owner
))
11704 htab
->toc_curr
= elf_gp (isec
->owner
);
11705 htab
->toc_first_sec
= isec
;
11707 addr
= (htab
->toc_first_sec
->output_offset
11708 + htab
->toc_first_sec
->output_section
->vma
);
11709 off
= addr
- elf_gp (isec
->output_section
->owner
) + TOC_BASE_OFF
;
11710 elf_gp (isec
->owner
) = off
;
11715 /* Called via elf_link_hash_traverse to merge GOT entries for global
11719 merge_global_got (struct elf_link_hash_entry
*h
, void *inf ATTRIBUTE_UNUSED
)
11721 if (h
->root
.type
== bfd_link_hash_indirect
)
11724 merge_got_entries (&h
->got
.glist
);
11729 /* Called via elf_link_hash_traverse to allocate GOT entries for global
11733 reallocate_got (struct elf_link_hash_entry
*h
, void *inf
)
11735 struct got_entry
*gent
;
11737 if (h
->root
.type
== bfd_link_hash_indirect
)
11740 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
11741 if (!gent
->is_indirect
)
11742 allocate_got (h
, (struct bfd_link_info
*) inf
, gent
);
11746 /* Called on the first multitoc pass after the last call to
11747 ppc64_elf_next_toc_section. This function removes duplicate GOT
11751 ppc64_elf_layout_multitoc (struct bfd_link_info
*info
)
11753 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
11754 struct bfd
*ibfd
, *ibfd2
;
11755 bfd_boolean done_something
;
11757 htab
->multi_toc_needed
= htab
->toc_curr
!= elf_gp (info
->output_bfd
);
11759 if (!htab
->do_multi_toc
)
11762 /* Merge global sym got entries within a toc group. */
11763 elf_link_hash_traverse (&htab
->elf
, merge_global_got
, info
);
11765 /* And tlsld_got. */
11766 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
11768 struct got_entry
*ent
, *ent2
;
11770 if (!is_ppc64_elf (ibfd
))
11773 ent
= ppc64_tlsld_got (ibfd
);
11774 if (!ent
->is_indirect
11775 && ent
->got
.offset
!= (bfd_vma
) -1)
11777 for (ibfd2
= ibfd
->link
.next
; ibfd2
!= NULL
; ibfd2
= ibfd2
->link
.next
)
11779 if (!is_ppc64_elf (ibfd2
))
11782 ent2
= ppc64_tlsld_got (ibfd2
);
11783 if (!ent2
->is_indirect
11784 && ent2
->got
.offset
!= (bfd_vma
) -1
11785 && elf_gp (ibfd2
) == elf_gp (ibfd
))
11787 ent2
->is_indirect
= TRUE
;
11788 ent2
->got
.ent
= ent
;
11794 /* Zap sizes of got sections. */
11795 htab
->elf
.irelplt
->rawsize
= htab
->elf
.irelplt
->size
;
11796 htab
->elf
.irelplt
->size
-= htab
->got_reli_size
;
11797 htab
->got_reli_size
= 0;
11799 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
11801 asection
*got
, *relgot
;
11803 if (!is_ppc64_elf (ibfd
))
11806 got
= ppc64_elf_tdata (ibfd
)->got
;
11809 got
->rawsize
= got
->size
;
11811 relgot
= ppc64_elf_tdata (ibfd
)->relgot
;
11812 relgot
->rawsize
= relgot
->size
;
11817 /* Now reallocate the got, local syms first. We don't need to
11818 allocate section contents again since we never increase size. */
11819 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
11821 struct got_entry
**lgot_ents
;
11822 struct got_entry
**end_lgot_ents
;
11823 struct plt_entry
**local_plt
;
11824 struct plt_entry
**end_local_plt
;
11825 unsigned char *lgot_masks
;
11826 bfd_size_type locsymcount
;
11827 Elf_Internal_Shdr
*symtab_hdr
;
11830 if (!is_ppc64_elf (ibfd
))
11833 lgot_ents
= elf_local_got_ents (ibfd
);
11837 symtab_hdr
= &elf_symtab_hdr (ibfd
);
11838 locsymcount
= symtab_hdr
->sh_info
;
11839 end_lgot_ents
= lgot_ents
+ locsymcount
;
11840 local_plt
= (struct plt_entry
**) end_lgot_ents
;
11841 end_local_plt
= local_plt
+ locsymcount
;
11842 lgot_masks
= (unsigned char *) end_local_plt
;
11843 s
= ppc64_elf_tdata (ibfd
)->got
;
11844 for (; lgot_ents
< end_lgot_ents
; ++lgot_ents
, ++lgot_masks
)
11846 struct got_entry
*ent
;
11848 for (ent
= *lgot_ents
; ent
!= NULL
; ent
= ent
->next
)
11850 unsigned int ent_size
= 8;
11851 unsigned int rel_size
= sizeof (Elf64_External_Rela
);
11853 ent
->got
.offset
= s
->size
;
11854 if ((ent
->tls_type
& *lgot_masks
& TLS_GD
) != 0)
11859 s
->size
+= ent_size
;
11860 if ((*lgot_masks
& PLT_IFUNC
) != 0)
11862 htab
->elf
.irelplt
->size
+= rel_size
;
11863 htab
->got_reli_size
+= rel_size
;
11865 else if (bfd_link_pic (info
))
11867 asection
*srel
= ppc64_elf_tdata (ibfd
)->relgot
;
11868 srel
->size
+= rel_size
;
11874 elf_link_hash_traverse (&htab
->elf
, reallocate_got
, info
);
11876 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
11878 struct got_entry
*ent
;
11880 if (!is_ppc64_elf (ibfd
))
11883 ent
= ppc64_tlsld_got (ibfd
);
11884 if (!ent
->is_indirect
11885 && ent
->got
.offset
!= (bfd_vma
) -1)
11887 asection
*s
= ppc64_elf_tdata (ibfd
)->got
;
11888 ent
->got
.offset
= s
->size
;
11890 if (bfd_link_pic (info
))
11892 asection
*srel
= ppc64_elf_tdata (ibfd
)->relgot
;
11893 srel
->size
+= sizeof (Elf64_External_Rela
);
11898 done_something
= htab
->elf
.irelplt
->rawsize
!= htab
->elf
.irelplt
->size
;
11899 if (!done_something
)
11900 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
11904 if (!is_ppc64_elf (ibfd
))
11907 got
= ppc64_elf_tdata (ibfd
)->got
;
11910 done_something
= got
->rawsize
!= got
->size
;
11911 if (done_something
)
11916 if (done_something
)
11917 (*htab
->params
->layout_sections_again
) ();
11919 /* Set up for second pass over toc sections to recalculate elf_gp
11920 on input sections. */
11921 htab
->toc_bfd
= NULL
;
11922 htab
->toc_first_sec
= NULL
;
11923 htab
->second_toc_pass
= TRUE
;
11924 return done_something
;
11927 /* Called after second pass of multitoc partitioning. */
11930 ppc64_elf_finish_multitoc_partition (struct bfd_link_info
*info
)
11932 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
11934 /* After the second pass, toc_curr tracks the TOC offset used
11935 for code sections below in ppc64_elf_next_input_section. */
11936 htab
->toc_curr
= TOC_BASE_OFF
;
11939 /* No toc references were found in ISEC. If the code in ISEC makes no
11940 calls, then there's no need to use toc adjusting stubs when branching
11941 into ISEC. Actually, indirect calls from ISEC are OK as they will
11942 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
11943 needed, and 2 if a cyclical call-graph was found but no other reason
11944 for a stub was detected. If called from the top level, a return of
11945 2 means the same as a return of 0. */
11948 toc_adjusting_stub_needed (struct bfd_link_info
*info
, asection
*isec
)
11952 /* Mark this section as checked. */
11953 isec
->call_check_done
= 1;
11955 /* We know none of our code bearing sections will need toc stubs. */
11956 if ((isec
->flags
& SEC_LINKER_CREATED
) != 0)
11959 if (isec
->size
== 0)
11962 if (isec
->output_section
== NULL
)
11966 if (isec
->reloc_count
!= 0)
11968 Elf_Internal_Rela
*relstart
, *rel
;
11969 Elf_Internal_Sym
*local_syms
;
11970 struct ppc_link_hash_table
*htab
;
11972 relstart
= _bfd_elf_link_read_relocs (isec
->owner
, isec
, NULL
, NULL
,
11973 info
->keep_memory
);
11974 if (relstart
== NULL
)
11977 /* Look for branches to outside of this section. */
11979 htab
= ppc_hash_table (info
);
11983 for (rel
= relstart
; rel
< relstart
+ isec
->reloc_count
; ++rel
)
11985 enum elf_ppc64_reloc_type r_type
;
11986 unsigned long r_symndx
;
11987 struct elf_link_hash_entry
*h
;
11988 struct ppc_link_hash_entry
*eh
;
11989 Elf_Internal_Sym
*sym
;
11991 struct _opd_sec_data
*opd
;
11995 r_type
= ELF64_R_TYPE (rel
->r_info
);
11996 if (r_type
!= R_PPC64_REL24
11997 && r_type
!= R_PPC64_REL14
11998 && r_type
!= R_PPC64_REL14_BRTAKEN
11999 && r_type
!= R_PPC64_REL14_BRNTAKEN
)
12002 r_symndx
= ELF64_R_SYM (rel
->r_info
);
12003 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
, r_symndx
,
12010 /* Calls to dynamic lib functions go through a plt call stub
12012 eh
= (struct ppc_link_hash_entry
*) h
;
12014 && (eh
->elf
.plt
.plist
!= NULL
12016 && ppc_follow_link (eh
->oh
)->elf
.plt
.plist
!= NULL
)))
12022 if (sym_sec
== NULL
)
12023 /* Ignore other undefined symbols. */
12026 /* Assume branches to other sections not included in the
12027 link need stubs too, to cover -R and absolute syms. */
12028 if (sym_sec
->output_section
== NULL
)
12035 sym_value
= sym
->st_value
;
12038 if (h
->root
.type
!= bfd_link_hash_defined
12039 && h
->root
.type
!= bfd_link_hash_defweak
)
12041 sym_value
= h
->root
.u
.def
.value
;
12043 sym_value
+= rel
->r_addend
;
12045 /* If this branch reloc uses an opd sym, find the code section. */
12046 opd
= get_opd_info (sym_sec
);
12049 if (h
== NULL
&& opd
->adjust
!= NULL
)
12053 adjust
= opd
->adjust
[OPD_NDX (sym_value
)];
12055 /* Assume deleted functions won't ever be called. */
12057 sym_value
+= adjust
;
12060 dest
= opd_entry_value (sym_sec
, sym_value
,
12061 &sym_sec
, NULL
, FALSE
);
12062 if (dest
== (bfd_vma
) -1)
12067 + sym_sec
->output_offset
12068 + sym_sec
->output_section
->vma
);
12070 /* Ignore branch to self. */
12071 if (sym_sec
== isec
)
12074 /* If the called function uses the toc, we need a stub. */
12075 if (sym_sec
->has_toc_reloc
12076 || sym_sec
->makes_toc_func_call
)
12082 /* Assume any branch that needs a long branch stub might in fact
12083 need a plt_branch stub. A plt_branch stub uses r2. */
12084 else if (dest
- (isec
->output_offset
12085 + isec
->output_section
->vma
12086 + rel
->r_offset
) + (1 << 25)
12087 >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h
12095 /* If calling back to a section in the process of being
12096 tested, we can't say for sure that no toc adjusting stubs
12097 are needed, so don't return zero. */
12098 else if (sym_sec
->call_check_in_progress
)
12101 /* Branches to another section that itself doesn't have any TOC
12102 references are OK. Recursively call ourselves to check. */
12103 else if (!sym_sec
->call_check_done
)
12107 /* Mark current section as indeterminate, so that other
12108 sections that call back to current won't be marked as
12110 isec
->call_check_in_progress
= 1;
12111 recur
= toc_adjusting_stub_needed (info
, sym_sec
);
12112 isec
->call_check_in_progress
= 0;
12123 if (local_syms
!= NULL
12124 && (elf_symtab_hdr (isec
->owner
).contents
12125 != (unsigned char *) local_syms
))
12127 if (elf_section_data (isec
)->relocs
!= relstart
)
12132 && isec
->map_head
.s
!= NULL
12133 && (strcmp (isec
->output_section
->name
, ".init") == 0
12134 || strcmp (isec
->output_section
->name
, ".fini") == 0))
12136 if (isec
->map_head
.s
->has_toc_reloc
12137 || isec
->map_head
.s
->makes_toc_func_call
)
12139 else if (!isec
->map_head
.s
->call_check_done
)
12142 isec
->call_check_in_progress
= 1;
12143 recur
= toc_adjusting_stub_needed (info
, isec
->map_head
.s
);
12144 isec
->call_check_in_progress
= 0;
12151 isec
->makes_toc_func_call
= 1;
12156 /* The linker repeatedly calls this function for each input section,
12157 in the order that input sections are linked into output sections.
12158 Build lists of input sections to determine groupings between which
12159 we may insert linker stubs. */
12162 ppc64_elf_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
12164 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
12169 if ((isec
->output_section
->flags
& SEC_CODE
) != 0
12170 && isec
->output_section
->id
< htab
->sec_info_arr_size
)
12172 /* This happens to make the list in reverse order,
12173 which is what we want. */
12174 htab
->sec_info
[isec
->id
].u
.list
12175 = htab
->sec_info
[isec
->output_section
->id
].u
.list
;
12176 htab
->sec_info
[isec
->output_section
->id
].u
.list
= isec
;
12179 if (htab
->multi_toc_needed
)
12181 /* Analyse sections that aren't already flagged as needing a
12182 valid toc pointer. Exclude .fixup for the linux kernel.
12183 .fixup contains branches, but only back to the function that
12184 hit an exception. */
12185 if (!(isec
->has_toc_reloc
12186 || (isec
->flags
& SEC_CODE
) == 0
12187 || strcmp (isec
->name
, ".fixup") == 0
12188 || isec
->call_check_done
))
12190 if (toc_adjusting_stub_needed (info
, isec
) < 0)
12193 /* Make all sections use the TOC assigned for this object file.
12194 This will be wrong for pasted sections; We fix that in
12195 check_pasted_section(). */
12196 if (elf_gp (isec
->owner
) != 0)
12197 htab
->toc_curr
= elf_gp (isec
->owner
);
12200 htab
->sec_info
[isec
->id
].toc_off
= htab
->toc_curr
;
12204 /* Check that all .init and .fini sections use the same toc, if they
12205 have toc relocs. */
12208 check_pasted_section (struct bfd_link_info
*info
, const char *name
)
12210 asection
*o
= bfd_get_section_by_name (info
->output_bfd
, name
);
12214 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
12215 bfd_vma toc_off
= 0;
12218 for (i
= o
->map_head
.s
; i
!= NULL
; i
= i
->map_head
.s
)
12219 if (i
->has_toc_reloc
)
12222 toc_off
= htab
->sec_info
[i
->id
].toc_off
;
12223 else if (toc_off
!= htab
->sec_info
[i
->id
].toc_off
)
12228 for (i
= o
->map_head
.s
; i
!= NULL
; i
= i
->map_head
.s
)
12229 if (i
->makes_toc_func_call
)
12231 toc_off
= htab
->sec_info
[i
->id
].toc_off
;
12235 /* Make sure the whole pasted function uses the same toc offset. */
12237 for (i
= o
->map_head
.s
; i
!= NULL
; i
= i
->map_head
.s
)
12238 htab
->sec_info
[i
->id
].toc_off
= toc_off
;
12244 ppc64_elf_check_init_fini (struct bfd_link_info
*info
)
12246 return (check_pasted_section (info
, ".init")
12247 & check_pasted_section (info
, ".fini"));
12250 /* See whether we can group stub sections together. Grouping stub
12251 sections may result in fewer stubs. More importantly, we need to
12252 put all .init* and .fini* stubs at the beginning of the .init or
12253 .fini output sections respectively, because glibc splits the
12254 _init and _fini functions into multiple parts. Putting a stub in
12255 the middle of a function is not a good idea. */
12258 group_sections (struct bfd_link_info
*info
,
12259 bfd_size_type stub_group_size
,
12260 bfd_boolean stubs_always_before_branch
)
12262 struct ppc_link_hash_table
*htab
;
12264 bfd_boolean suppress_size_errors
;
12266 htab
= ppc_hash_table (info
);
12270 suppress_size_errors
= FALSE
;
12271 if (stub_group_size
== 1)
12273 /* Default values. */
12274 if (stubs_always_before_branch
)
12275 stub_group_size
= 0x1e00000;
12277 stub_group_size
= 0x1c00000;
12278 suppress_size_errors
= TRUE
;
12281 for (osec
= info
->output_bfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
12285 if (osec
->id
>= htab
->sec_info_arr_size
)
12288 tail
= htab
->sec_info
[osec
->id
].u
.list
;
12289 while (tail
!= NULL
)
12293 bfd_size_type total
;
12294 bfd_boolean big_sec
;
12296 struct map_stub
*group
;
12297 bfd_size_type group_size
;
12300 total
= tail
->size
;
12301 group_size
= (ppc64_elf_section_data (tail
) != NULL
12302 && ppc64_elf_section_data (tail
)->has_14bit_branch
12303 ? stub_group_size
>> 10 : stub_group_size
);
12305 big_sec
= total
> group_size
;
12306 if (big_sec
&& !suppress_size_errors
)
12307 /* xgettext:c-format */
12308 _bfd_error_handler (_("%B section %A exceeds stub group size"),
12309 tail
->owner
, tail
);
12310 curr_toc
= htab
->sec_info
[tail
->id
].toc_off
;
12312 while ((prev
= htab
->sec_info
[curr
->id
].u
.list
) != NULL
12313 && ((total
+= curr
->output_offset
- prev
->output_offset
)
12314 < (ppc64_elf_section_data (prev
) != NULL
12315 && ppc64_elf_section_data (prev
)->has_14bit_branch
12316 ? (group_size
= stub_group_size
>> 10) : group_size
))
12317 && htab
->sec_info
[prev
->id
].toc_off
== curr_toc
)
12320 /* OK, the size from the start of CURR to the end is less
12321 than group_size and thus can be handled by one stub
12322 section. (or the tail section is itself larger than
12323 group_size, in which case we may be toast.) We should
12324 really be keeping track of the total size of stubs added
12325 here, as stubs contribute to the final output section
12326 size. That's a little tricky, and this way will only
12327 break if stubs added make the total size more than 2^25,
12328 ie. for the default stub_group_size, if stubs total more
12329 than 2097152 bytes, or nearly 75000 plt call stubs. */
12330 group
= bfd_alloc (curr
->owner
, sizeof (*group
));
12333 group
->link_sec
= curr
;
12334 group
->stub_sec
= NULL
;
12335 group
->needs_save_res
= 0;
12336 group
->tls_get_addr_opt_bctrl
= -1u;
12337 group
->next
= htab
->group
;
12338 htab
->group
= group
;
12341 prev
= htab
->sec_info
[tail
->id
].u
.list
;
12342 /* Set up this stub group. */
12343 htab
->sec_info
[tail
->id
].u
.group
= group
;
12345 while (tail
!= curr
&& (tail
= prev
) != NULL
);
12347 /* But wait, there's more! Input sections up to group_size
12348 bytes before the stub section can be handled by it too.
12349 Don't do this if we have a really large section after the
12350 stubs, as adding more stubs increases the chance that
12351 branches may not reach into the stub section. */
12352 if (!stubs_always_before_branch
&& !big_sec
)
12355 while (prev
!= NULL
12356 && ((total
+= tail
->output_offset
- prev
->output_offset
)
12357 < (ppc64_elf_section_data (prev
) != NULL
12358 && ppc64_elf_section_data (prev
)->has_14bit_branch
12359 ? (group_size
= stub_group_size
>> 10) : group_size
))
12360 && htab
->sec_info
[prev
->id
].toc_off
== curr_toc
)
12363 prev
= htab
->sec_info
[tail
->id
].u
.list
;
12364 htab
->sec_info
[tail
->id
].u
.group
= group
;
12373 static const unsigned char glink_eh_frame_cie
[] =
12375 0, 0, 0, 16, /* length. */
12376 0, 0, 0, 0, /* id. */
12377 1, /* CIE version. */
12378 'z', 'R', 0, /* Augmentation string. */
12379 4, /* Code alignment. */
12380 0x78, /* Data alignment. */
12382 1, /* Augmentation size. */
12383 DW_EH_PE_pcrel
| DW_EH_PE_sdata4
, /* FDE encoding. */
12384 DW_CFA_def_cfa
, 1, 0 /* def_cfa: r1 offset 0. */
12388 stub_eh_frame_size (struct map_stub
*group
, size_t align
)
12390 size_t this_size
= 17;
12391 if (group
->tls_get_addr_opt_bctrl
!= -1u)
12393 unsigned int to_bctrl
= group
->tls_get_addr_opt_bctrl
/ 4;
12396 else if (to_bctrl
< 256)
12398 else if (to_bctrl
< 65536)
12404 this_size
= (this_size
+ align
- 1) & -align
;
12408 /* Stripping output sections is normally done before dynamic section
12409 symbols have been allocated. This function is called later, and
12410 handles cases like htab->brlt which is mapped to its own output
12414 maybe_strip_output (struct bfd_link_info
*info
, asection
*isec
)
12416 if (isec
->size
== 0
12417 && isec
->output_section
->size
== 0
12418 && !(isec
->output_section
->flags
& SEC_KEEP
)
12419 && !bfd_section_removed_from_list (info
->output_bfd
,
12420 isec
->output_section
)
12421 && elf_section_data (isec
->output_section
)->dynindx
== 0)
12423 isec
->output_section
->flags
|= SEC_EXCLUDE
;
12424 bfd_section_list_remove (info
->output_bfd
, isec
->output_section
);
12425 info
->output_bfd
->section_count
--;
12429 /* Determine and set the size of the stub section for a final link.
12431 The basic idea here is to examine all the relocations looking for
12432 PC-relative calls to a target that is unreachable with a "bl"
12436 ppc64_elf_size_stubs (struct bfd_link_info
*info
)
12438 bfd_size_type stub_group_size
;
12439 bfd_boolean stubs_always_before_branch
;
12440 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
12445 if (htab
->params
->plt_thread_safe
== -1 && !bfd_link_executable (info
))
12446 htab
->params
->plt_thread_safe
= 1;
12447 if (!htab
->opd_abi
)
12448 htab
->params
->plt_thread_safe
= 0;
12449 else if (htab
->params
->plt_thread_safe
== -1)
12451 static const char *const thread_starter
[] =
12455 "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE",
12457 "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio",
12458 "mq_notify", "create_timer",
12463 "GOMP_parallel_start",
12464 "GOMP_parallel_loop_static",
12465 "GOMP_parallel_loop_static_start",
12466 "GOMP_parallel_loop_dynamic",
12467 "GOMP_parallel_loop_dynamic_start",
12468 "GOMP_parallel_loop_guided",
12469 "GOMP_parallel_loop_guided_start",
12470 "GOMP_parallel_loop_runtime",
12471 "GOMP_parallel_loop_runtime_start",
12472 "GOMP_parallel_sections",
12473 "GOMP_parallel_sections_start",
12479 for (i
= 0; i
< ARRAY_SIZE (thread_starter
); i
++)
12481 struct elf_link_hash_entry
*h
;
12482 h
= elf_link_hash_lookup (&htab
->elf
, thread_starter
[i
],
12483 FALSE
, FALSE
, TRUE
);
12484 htab
->params
->plt_thread_safe
= h
!= NULL
&& h
->ref_regular
;
12485 if (htab
->params
->plt_thread_safe
)
12489 stubs_always_before_branch
= htab
->params
->group_size
< 0;
12490 if (htab
->params
->group_size
< 0)
12491 stub_group_size
= -htab
->params
->group_size
;
12493 stub_group_size
= htab
->params
->group_size
;
12495 if (!group_sections (info
, stub_group_size
, stubs_always_before_branch
))
12498 #define STUB_SHRINK_ITER 20
12499 /* Loop until no stubs added. After iteration 20 of this loop we may
12500 exit on a stub section shrinking. This is to break out of a
12501 pathological case where adding stubs on one iteration decreases
12502 section gaps (perhaps due to alignment), which then requires
12503 fewer or smaller stubs on the next iteration. */
12508 unsigned int bfd_indx
;
12509 struct map_stub
*group
;
12511 htab
->stub_iteration
+= 1;
12513 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
12515 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
12517 Elf_Internal_Shdr
*symtab_hdr
;
12519 Elf_Internal_Sym
*local_syms
= NULL
;
12521 if (!is_ppc64_elf (input_bfd
))
12524 /* We'll need the symbol table in a second. */
12525 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
12526 if (symtab_hdr
->sh_info
== 0)
12529 /* Walk over each section attached to the input bfd. */
12530 for (section
= input_bfd
->sections
;
12532 section
= section
->next
)
12534 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
12536 /* If there aren't any relocs, then there's nothing more
12538 if ((section
->flags
& SEC_RELOC
) == 0
12539 || (section
->flags
& SEC_ALLOC
) == 0
12540 || (section
->flags
& SEC_LOAD
) == 0
12541 || (section
->flags
& SEC_CODE
) == 0
12542 || section
->reloc_count
== 0)
12545 /* If this section is a link-once section that will be
12546 discarded, then don't create any stubs. */
12547 if (section
->output_section
== NULL
12548 || section
->output_section
->owner
!= info
->output_bfd
)
12551 /* Get the relocs. */
12553 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
12554 info
->keep_memory
);
12555 if (internal_relocs
== NULL
)
12556 goto error_ret_free_local
;
12558 /* Now examine each relocation. */
12559 irela
= internal_relocs
;
12560 irelaend
= irela
+ section
->reloc_count
;
12561 for (; irela
< irelaend
; irela
++)
12563 enum elf_ppc64_reloc_type r_type
;
12564 unsigned int r_indx
;
12565 enum ppc_stub_type stub_type
;
12566 struct ppc_stub_hash_entry
*stub_entry
;
12567 asection
*sym_sec
, *code_sec
;
12568 bfd_vma sym_value
, code_value
;
12569 bfd_vma destination
;
12570 unsigned long local_off
;
12571 bfd_boolean ok_dest
;
12572 struct ppc_link_hash_entry
*hash
;
12573 struct ppc_link_hash_entry
*fdh
;
12574 struct elf_link_hash_entry
*h
;
12575 Elf_Internal_Sym
*sym
;
12577 const asection
*id_sec
;
12578 struct _opd_sec_data
*opd
;
12579 struct plt_entry
*plt_ent
;
12581 r_type
= ELF64_R_TYPE (irela
->r_info
);
12582 r_indx
= ELF64_R_SYM (irela
->r_info
);
12584 if (r_type
>= R_PPC64_max
)
12586 bfd_set_error (bfd_error_bad_value
);
12587 goto error_ret_free_internal
;
12590 /* Only look for stubs on branch instructions. */
12591 if (r_type
!= R_PPC64_REL24
12592 && r_type
!= R_PPC64_REL14
12593 && r_type
!= R_PPC64_REL14_BRTAKEN
12594 && r_type
!= R_PPC64_REL14_BRNTAKEN
)
12597 /* Now determine the call target, its name, value,
12599 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
12600 r_indx
, input_bfd
))
12601 goto error_ret_free_internal
;
12602 hash
= (struct ppc_link_hash_entry
*) h
;
12609 sym_value
= sym
->st_value
;
12610 if (sym_sec
!= NULL
12611 && sym_sec
->output_section
!= NULL
)
12614 else if (hash
->elf
.root
.type
== bfd_link_hash_defined
12615 || hash
->elf
.root
.type
== bfd_link_hash_defweak
)
12617 sym_value
= hash
->elf
.root
.u
.def
.value
;
12618 if (sym_sec
->output_section
!= NULL
)
12621 else if (hash
->elf
.root
.type
== bfd_link_hash_undefweak
12622 || hash
->elf
.root
.type
== bfd_link_hash_undefined
)
12624 /* Recognise an old ABI func code entry sym, and
12625 use the func descriptor sym instead if it is
12627 if (hash
->elf
.root
.root
.string
[0] == '.'
12628 && hash
->oh
!= NULL
)
12630 fdh
= ppc_follow_link (hash
->oh
);
12631 if (fdh
->elf
.root
.type
== bfd_link_hash_defined
12632 || fdh
->elf
.root
.type
== bfd_link_hash_defweak
)
12634 sym_sec
= fdh
->elf
.root
.u
.def
.section
;
12635 sym_value
= fdh
->elf
.root
.u
.def
.value
;
12636 if (sym_sec
->output_section
!= NULL
)
12645 bfd_set_error (bfd_error_bad_value
);
12646 goto error_ret_free_internal
;
12653 sym_value
+= irela
->r_addend
;
12654 destination
= (sym_value
12655 + sym_sec
->output_offset
12656 + sym_sec
->output_section
->vma
);
12657 local_off
= PPC64_LOCAL_ENTRY_OFFSET (hash
12662 code_sec
= sym_sec
;
12663 code_value
= sym_value
;
12664 opd
= get_opd_info (sym_sec
);
12669 if (hash
== NULL
&& opd
->adjust
!= NULL
)
12671 long adjust
= opd
->adjust
[OPD_NDX (sym_value
)];
12674 code_value
+= adjust
;
12675 sym_value
+= adjust
;
12677 dest
= opd_entry_value (sym_sec
, sym_value
,
12678 &code_sec
, &code_value
, FALSE
);
12679 if (dest
!= (bfd_vma
) -1)
12681 destination
= dest
;
12684 /* Fixup old ABI sym to point at code
12686 hash
->elf
.root
.type
= bfd_link_hash_defweak
;
12687 hash
->elf
.root
.u
.def
.section
= code_sec
;
12688 hash
->elf
.root
.u
.def
.value
= code_value
;
12693 /* Determine what (if any) linker stub is needed. */
12695 stub_type
= ppc_type_of_stub (section
, irela
, &hash
,
12696 &plt_ent
, destination
,
12699 if (stub_type
!= ppc_stub_plt_call
)
12701 /* Check whether we need a TOC adjusting stub.
12702 Since the linker pastes together pieces from
12703 different object files when creating the
12704 _init and _fini functions, it may be that a
12705 call to what looks like a local sym is in
12706 fact a call needing a TOC adjustment. */
12707 if (code_sec
!= NULL
12708 && code_sec
->output_section
!= NULL
12709 && (htab
->sec_info
[code_sec
->id
].toc_off
12710 != htab
->sec_info
[section
->id
].toc_off
)
12711 && (code_sec
->has_toc_reloc
12712 || code_sec
->makes_toc_func_call
))
12713 stub_type
= ppc_stub_long_branch_r2off
;
12716 if (stub_type
== ppc_stub_none
)
12719 /* __tls_get_addr calls might be eliminated. */
12720 if (stub_type
!= ppc_stub_plt_call
12722 && (hash
== htab
->tls_get_addr
12723 || hash
== htab
->tls_get_addr_fd
)
12724 && section
->has_tls_reloc
12725 && irela
!= internal_relocs
)
12727 /* Get tls info. */
12728 unsigned char *tls_mask
;
12730 if (!get_tls_mask (&tls_mask
, NULL
, NULL
, &local_syms
,
12731 irela
- 1, input_bfd
))
12732 goto error_ret_free_internal
;
12733 if (*tls_mask
!= 0)
12737 if (stub_type
== ppc_stub_plt_call
)
12740 && htab
->params
->plt_localentry0
!= 0
12741 && is_elfv2_localentry0 (&hash
->elf
))
12742 htab
->has_plt_localentry0
= 1;
12743 else if (irela
+ 1 < irelaend
12744 && irela
[1].r_offset
== irela
->r_offset
+ 4
12745 && (ELF64_R_TYPE (irela
[1].r_info
)
12746 == R_PPC64_TOCSAVE
))
12748 if (!tocsave_find (htab
, INSERT
,
12749 &local_syms
, irela
+ 1, input_bfd
))
12750 goto error_ret_free_internal
;
12753 stub_type
= ppc_stub_plt_call_r2save
;
12756 /* Support for grouping stub sections. */
12757 id_sec
= htab
->sec_info
[section
->id
].u
.group
->link_sec
;
12759 /* Get the name of this stub. */
12760 stub_name
= ppc_stub_name (id_sec
, sym_sec
, hash
, irela
);
12762 goto error_ret_free_internal
;
12764 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
12765 stub_name
, FALSE
, FALSE
);
12766 if (stub_entry
!= NULL
)
12768 /* The proper stub has already been created. */
12770 if (stub_type
== ppc_stub_plt_call_r2save
)
12771 stub_entry
->stub_type
= stub_type
;
12775 stub_entry
= ppc_add_stub (stub_name
, section
, info
);
12776 if (stub_entry
== NULL
)
12779 error_ret_free_internal
:
12780 if (elf_section_data (section
)->relocs
== NULL
)
12781 free (internal_relocs
);
12782 error_ret_free_local
:
12783 if (local_syms
!= NULL
12784 && (symtab_hdr
->contents
12785 != (unsigned char *) local_syms
))
12790 stub_entry
->stub_type
= stub_type
;
12791 if (stub_type
!= ppc_stub_plt_call
12792 && stub_type
!= ppc_stub_plt_call_r2save
)
12794 stub_entry
->target_value
= code_value
;
12795 stub_entry
->target_section
= code_sec
;
12799 stub_entry
->target_value
= sym_value
;
12800 stub_entry
->target_section
= sym_sec
;
12802 stub_entry
->h
= hash
;
12803 stub_entry
->plt_ent
= plt_ent
;
12804 stub_entry
->other
= hash
? hash
->elf
.other
: sym
->st_other
;
12806 if (stub_entry
->h
!= NULL
)
12807 htab
->stub_globals
+= 1;
12810 /* We're done with the internal relocs, free them. */
12811 if (elf_section_data (section
)->relocs
!= internal_relocs
)
12812 free (internal_relocs
);
12815 if (local_syms
!= NULL
12816 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
12818 if (!info
->keep_memory
)
12821 symtab_hdr
->contents
= (unsigned char *) local_syms
;
12825 /* We may have added some stubs. Find out the new size of the
12827 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
12828 if (group
->stub_sec
!= NULL
)
12830 asection
*stub_sec
= group
->stub_sec
;
12832 if (htab
->stub_iteration
<= STUB_SHRINK_ITER
12833 || stub_sec
->rawsize
< stub_sec
->size
)
12834 /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */
12835 stub_sec
->rawsize
= stub_sec
->size
;
12836 stub_sec
->size
= 0;
12837 stub_sec
->reloc_count
= 0;
12838 stub_sec
->flags
&= ~SEC_RELOC
;
12841 htab
->brlt
->size
= 0;
12842 htab
->brlt
->reloc_count
= 0;
12843 htab
->brlt
->flags
&= ~SEC_RELOC
;
12844 if (htab
->relbrlt
!= NULL
)
12845 htab
->relbrlt
->size
= 0;
12847 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_size_one_stub
, info
);
12849 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
12850 if (group
->needs_save_res
)
12851 group
->stub_sec
->size
+= htab
->sfpr
->size
;
12853 if (info
->emitrelocations
12854 && htab
->glink
!= NULL
&& htab
->glink
->size
!= 0)
12856 htab
->glink
->reloc_count
= 1;
12857 htab
->glink
->flags
|= SEC_RELOC
;
12860 if (htab
->glink_eh_frame
!= NULL
12861 && !bfd_is_abs_section (htab
->glink_eh_frame
->output_section
)
12862 && htab
->glink_eh_frame
->output_section
->size
!= 0)
12864 size_t size
= 0, align
= 4;
12866 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
12867 if (group
->stub_sec
!= NULL
)
12868 size
+= stub_eh_frame_size (group
, align
);
12869 if (htab
->glink
!= NULL
&& htab
->glink
->size
!= 0)
12870 size
+= (24 + align
- 1) & -align
;
12872 size
+= (sizeof (glink_eh_frame_cie
) + align
- 1) & -align
;
12873 align
= 1ul << htab
->glink_eh_frame
->output_section
->alignment_power
;
12874 size
= (size
+ align
- 1) & -align
;
12875 htab
->glink_eh_frame
->rawsize
= htab
->glink_eh_frame
->size
;
12876 htab
->glink_eh_frame
->size
= size
;
12879 if (htab
->params
->plt_stub_align
!= 0)
12880 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
12881 if (group
->stub_sec
!= NULL
)
12882 group
->stub_sec
->size
= ((group
->stub_sec
->size
12883 + (1 << htab
->params
->plt_stub_align
) - 1)
12884 & -(1 << htab
->params
->plt_stub_align
));
12886 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
12887 if (group
->stub_sec
!= NULL
12888 && group
->stub_sec
->rawsize
!= group
->stub_sec
->size
12889 && (htab
->stub_iteration
<= STUB_SHRINK_ITER
12890 || group
->stub_sec
->rawsize
< group
->stub_sec
->size
))
12894 && (htab
->glink_eh_frame
== NULL
12895 || htab
->glink_eh_frame
->rawsize
== htab
->glink_eh_frame
->size
))
12898 /* Ask the linker to do its stuff. */
12899 (*htab
->params
->layout_sections_again
) ();
12902 if (htab
->glink_eh_frame
!= NULL
12903 && htab
->glink_eh_frame
->size
!= 0)
12906 bfd_byte
*p
, *last_fde
;
12907 size_t last_fde_len
, size
, align
, pad
;
12908 struct map_stub
*group
;
12910 p
= bfd_zalloc (htab
->glink_eh_frame
->owner
, htab
->glink_eh_frame
->size
);
12913 htab
->glink_eh_frame
->contents
= p
;
12917 memcpy (p
, glink_eh_frame_cie
, sizeof (glink_eh_frame_cie
));
12918 /* CIE length (rewrite in case little-endian). */
12919 last_fde_len
= ((sizeof (glink_eh_frame_cie
) + align
- 1) & -align
) - 4;
12920 bfd_put_32 (htab
->elf
.dynobj
, last_fde_len
, p
);
12921 p
+= last_fde_len
+ 4;
12923 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
12924 if (group
->stub_sec
!= NULL
)
12927 last_fde_len
= stub_eh_frame_size (group
, align
) - 4;
12929 bfd_put_32 (htab
->elf
.dynobj
, last_fde_len
, p
);
12932 val
= p
- htab
->glink_eh_frame
->contents
;
12933 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
12935 /* Offset to stub section, written later. */
12937 /* stub section size. */
12938 bfd_put_32 (htab
->elf
.dynobj
, group
->stub_sec
->size
, p
);
12940 /* Augmentation. */
12942 if (group
->tls_get_addr_opt_bctrl
!= -1u)
12944 unsigned int to_bctrl
= group
->tls_get_addr_opt_bctrl
/ 4;
12946 /* This FDE needs more than just the default.
12947 Describe __tls_get_addr_opt stub LR. */
12949 *p
++ = DW_CFA_advance_loc
+ to_bctrl
;
12950 else if (to_bctrl
< 256)
12952 *p
++ = DW_CFA_advance_loc1
;
12955 else if (to_bctrl
< 65536)
12957 *p
++ = DW_CFA_advance_loc2
;
12958 bfd_put_16 (htab
->elf
.dynobj
, to_bctrl
, p
);
12963 *p
++ = DW_CFA_advance_loc4
;
12964 bfd_put_32 (htab
->elf
.dynobj
, to_bctrl
, p
);
12967 *p
++ = DW_CFA_offset_extended_sf
;
12969 *p
++ = -(STK_LINKER (htab
) / 8) & 0x7f;
12970 *p
++ = DW_CFA_advance_loc
+ 4;
12971 *p
++ = DW_CFA_restore_extended
;
12975 p
= last_fde
+ last_fde_len
+ 4;
12977 if (htab
->glink
!= NULL
&& htab
->glink
->size
!= 0)
12980 last_fde_len
= ((24 + align
- 1) & -align
) - 4;
12982 bfd_put_32 (htab
->elf
.dynobj
, last_fde_len
, p
);
12985 val
= p
- htab
->glink_eh_frame
->contents
;
12986 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
12988 /* Offset to .glink, written later. */
12991 bfd_put_32 (htab
->elf
.dynobj
, htab
->glink
->size
- 8, p
);
12993 /* Augmentation. */
12996 *p
++ = DW_CFA_advance_loc
+ 1;
12997 *p
++ = DW_CFA_register
;
12999 *p
++ = htab
->opd_abi
? 12 : 0;
13000 *p
++ = DW_CFA_advance_loc
+ (htab
->opd_abi
? 5 : 7);
13001 *p
++ = DW_CFA_restore_extended
;
13003 p
+= ((24 + align
- 1) & -align
) - 24;
13005 /* Subsume any padding into the last FDE if user .eh_frame
13006 sections are aligned more than glink_eh_frame. Otherwise any
13007 zero padding will be seen as a terminator. */
13008 align
= 1ul << htab
->glink_eh_frame
->output_section
->alignment_power
;
13009 size
= p
- htab
->glink_eh_frame
->contents
;
13010 pad
= ((size
+ align
- 1) & -align
) - size
;
13011 htab
->glink_eh_frame
->size
= size
+ pad
;
13012 bfd_put_32 (htab
->elf
.dynobj
, last_fde_len
+ pad
, last_fde
);
13015 maybe_strip_output (info
, htab
->brlt
);
13016 if (htab
->glink_eh_frame
!= NULL
)
13017 maybe_strip_output (info
, htab
->glink_eh_frame
);
13022 /* Called after we have determined section placement. If sections
13023 move, we'll be called again. Provide a value for TOCstart. */
13026 ppc64_elf_set_toc (struct bfd_link_info
*info
, bfd
*obfd
)
13029 bfd_vma TOCstart
, adjust
;
13033 struct elf_link_hash_entry
*h
;
13034 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
13036 if (is_elf_hash_table (htab
)
13037 && htab
->hgot
!= NULL
)
13041 h
= elf_link_hash_lookup (htab
, ".TOC.", FALSE
, FALSE
, TRUE
);
13042 if (is_elf_hash_table (htab
))
13046 && h
->root
.type
== bfd_link_hash_defined
13047 && !h
->root
.linker_def
13048 && (!is_elf_hash_table (htab
)
13049 || h
->def_regular
))
13051 TOCstart
= (h
->root
.u
.def
.value
- TOC_BASE_OFF
13052 + h
->root
.u
.def
.section
->output_offset
13053 + h
->root
.u
.def
.section
->output_section
->vma
);
13054 _bfd_set_gp_value (obfd
, TOCstart
);
13059 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
13060 order. The TOC starts where the first of these sections starts. */
13061 s
= bfd_get_section_by_name (obfd
, ".got");
13062 if (s
== NULL
|| (s
->flags
& SEC_EXCLUDE
) != 0)
13063 s
= bfd_get_section_by_name (obfd
, ".toc");
13064 if (s
== NULL
|| (s
->flags
& SEC_EXCLUDE
) != 0)
13065 s
= bfd_get_section_by_name (obfd
, ".tocbss");
13066 if (s
== NULL
|| (s
->flags
& SEC_EXCLUDE
) != 0)
13067 s
= bfd_get_section_by_name (obfd
, ".plt");
13068 if (s
== NULL
|| (s
->flags
& SEC_EXCLUDE
) != 0)
13070 /* This may happen for
13071 o references to TOC base (SYM@toc / TOC[tc0]) without a
13073 o bad linker script
13074 o --gc-sections and empty TOC sections
13076 FIXME: Warn user? */
13078 /* Look for a likely section. We probably won't even be
13080 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
13081 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
| SEC_READONLY
13083 == (SEC_ALLOC
| SEC_SMALL_DATA
))
13086 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
13087 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
| SEC_EXCLUDE
))
13088 == (SEC_ALLOC
| SEC_SMALL_DATA
))
13091 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
13092 if ((s
->flags
& (SEC_ALLOC
| SEC_READONLY
| SEC_EXCLUDE
))
13096 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
13097 if ((s
->flags
& (SEC_ALLOC
| SEC_EXCLUDE
)) == SEC_ALLOC
)
13103 TOCstart
= s
->output_section
->vma
+ s
->output_offset
;
13105 /* Force alignment. */
13106 adjust
= TOCstart
& (TOC_BASE_ALIGN
- 1);
13107 TOCstart
-= adjust
;
13108 _bfd_set_gp_value (obfd
, TOCstart
);
13110 if (info
!= NULL
&& s
!= NULL
)
13112 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
13116 if (htab
->elf
.hgot
!= NULL
)
13118 htab
->elf
.hgot
->root
.u
.def
.value
= TOC_BASE_OFF
- adjust
;
13119 htab
->elf
.hgot
->root
.u
.def
.section
= s
;
13124 struct bfd_link_hash_entry
*bh
= NULL
;
13125 _bfd_generic_link_add_one_symbol (info
, obfd
, ".TOC.", BSF_GLOBAL
,
13126 s
, TOC_BASE_OFF
- adjust
,
13127 NULL
, FALSE
, FALSE
, &bh
);
13133 /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to
13134 write out any global entry stubs. */
13137 build_global_entry_stubs (struct elf_link_hash_entry
*h
, void *inf
)
13139 struct bfd_link_info
*info
;
13140 struct ppc_link_hash_table
*htab
;
13141 struct plt_entry
*pent
;
13144 if (h
->root
.type
== bfd_link_hash_indirect
)
13147 if (!h
->pointer_equality_needed
)
13150 if (h
->def_regular
)
13154 htab
= ppc_hash_table (info
);
13159 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
13160 if (pent
->plt
.offset
!= (bfd_vma
) -1
13161 && pent
->addend
== 0)
13167 p
= s
->contents
+ h
->root
.u
.def
.value
;
13168 plt
= htab
->elf
.splt
;
13169 if (!htab
->elf
.dynamic_sections_created
13170 || h
->dynindx
== -1)
13171 plt
= htab
->elf
.iplt
;
13172 off
= pent
->plt
.offset
+ plt
->output_offset
+ plt
->output_section
->vma
;
13173 off
-= h
->root
.u
.def
.value
+ s
->output_offset
+ s
->output_section
->vma
;
13175 if (off
+ 0x80008000 > 0xffffffff || (off
& 3) != 0)
13177 info
->callbacks
->einfo
13178 (_("%P: linkage table error against `%T'\n"),
13179 h
->root
.root
.string
);
13180 bfd_set_error (bfd_error_bad_value
);
13181 htab
->stub_error
= TRUE
;
13184 htab
->stub_count
[ppc_stub_global_entry
- 1] += 1;
13185 if (htab
->params
->emit_stub_syms
)
13187 size_t len
= strlen (h
->root
.root
.string
);
13188 char *name
= bfd_malloc (sizeof "12345678.global_entry." + len
);
13193 sprintf (name
, "%08x.global_entry.%s", s
->id
, h
->root
.root
.string
);
13194 h
= elf_link_hash_lookup (&htab
->elf
, name
, TRUE
, FALSE
, FALSE
);
13197 if (h
->root
.type
== bfd_link_hash_new
)
13199 h
->root
.type
= bfd_link_hash_defined
;
13200 h
->root
.u
.def
.section
= s
;
13201 h
->root
.u
.def
.value
= p
- s
->contents
;
13202 h
->ref_regular
= 1;
13203 h
->def_regular
= 1;
13204 h
->ref_regular_nonweak
= 1;
13205 h
->forced_local
= 1;
13207 h
->root
.linker_def
= 1;
13211 if (PPC_HA (off
) != 0)
13213 bfd_put_32 (s
->owner
, ADDIS_R12_R12
| PPC_HA (off
), p
);
13216 bfd_put_32 (s
->owner
, LD_R12_0R12
| PPC_LO (off
), p
);
13218 bfd_put_32 (s
->owner
, MTCTR_R12
, p
);
13220 bfd_put_32 (s
->owner
, BCTR
, p
);
13226 /* Build all the stubs associated with the current output file.
13227 The stubs are kept in a hash table attached to the main linker
13228 hash table. This function is called via gldelf64ppc_finish. */
13231 ppc64_elf_build_stubs (struct bfd_link_info
*info
,
13234 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
13235 struct map_stub
*group
;
13236 asection
*stub_sec
;
13238 int stub_sec_count
= 0;
13243 /* Allocate memory to hold the linker stubs. */
13244 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
13245 if ((stub_sec
= group
->stub_sec
) != NULL
13246 && stub_sec
->size
!= 0)
13248 stub_sec
->contents
= bfd_zalloc (htab
->params
->stub_bfd
, stub_sec
->size
);
13249 if (stub_sec
->contents
== NULL
)
13251 stub_sec
->size
= 0;
13254 if (htab
->glink
!= NULL
&& htab
->glink
->size
!= 0)
13259 /* Build the .glink plt call stub. */
13260 if (htab
->params
->emit_stub_syms
)
13262 struct elf_link_hash_entry
*h
;
13263 h
= elf_link_hash_lookup (&htab
->elf
, "__glink_PLTresolve",
13264 TRUE
, FALSE
, FALSE
);
13267 if (h
->root
.type
== bfd_link_hash_new
)
13269 h
->root
.type
= bfd_link_hash_defined
;
13270 h
->root
.u
.def
.section
= htab
->glink
;
13271 h
->root
.u
.def
.value
= 8;
13272 h
->ref_regular
= 1;
13273 h
->def_regular
= 1;
13274 h
->ref_regular_nonweak
= 1;
13275 h
->forced_local
= 1;
13277 h
->root
.linker_def
= 1;
13280 plt0
= (htab
->elf
.splt
->output_section
->vma
13281 + htab
->elf
.splt
->output_offset
13283 if (info
->emitrelocations
)
13285 Elf_Internal_Rela
*r
= get_relocs (htab
->glink
, 1);
13288 r
->r_offset
= (htab
->glink
->output_offset
13289 + htab
->glink
->output_section
->vma
);
13290 r
->r_info
= ELF64_R_INFO (0, R_PPC64_REL64
);
13291 r
->r_addend
= plt0
;
13293 p
= htab
->glink
->contents
;
13294 plt0
-= htab
->glink
->output_section
->vma
+ htab
->glink
->output_offset
;
13295 bfd_put_64 (htab
->glink
->owner
, plt0
, p
);
13299 bfd_put_32 (htab
->glink
->owner
, MFLR_R12
, p
);
13301 bfd_put_32 (htab
->glink
->owner
, BCL_20_31
, p
);
13303 bfd_put_32 (htab
->glink
->owner
, MFLR_R11
, p
);
13305 bfd_put_32 (htab
->glink
->owner
, LD_R2_0R11
| (-16 & 0xfffc), p
);
13307 bfd_put_32 (htab
->glink
->owner
, MTLR_R12
, p
);
13309 bfd_put_32 (htab
->glink
->owner
, ADD_R11_R2_R11
, p
);
13311 bfd_put_32 (htab
->glink
->owner
, LD_R12_0R11
, p
);
13313 bfd_put_32 (htab
->glink
->owner
, LD_R2_0R11
| 8, p
);
13315 bfd_put_32 (htab
->glink
->owner
, MTCTR_R12
, p
);
13317 bfd_put_32 (htab
->glink
->owner
, LD_R11_0R11
| 16, p
);
13322 bfd_put_32 (htab
->glink
->owner
, MFLR_R0
, p
);
13324 bfd_put_32 (htab
->glink
->owner
, BCL_20_31
, p
);
13326 bfd_put_32 (htab
->glink
->owner
, MFLR_R11
, p
);
13328 bfd_put_32 (htab
->glink
->owner
, STD_R2_0R1
+ 24, p
);
13330 bfd_put_32 (htab
->glink
->owner
, LD_R2_0R11
| (-16 & 0xfffc), p
);
13332 bfd_put_32 (htab
->glink
->owner
, MTLR_R0
, p
);
13334 bfd_put_32 (htab
->glink
->owner
, SUB_R12_R12_R11
, p
);
13336 bfd_put_32 (htab
->glink
->owner
, ADD_R11_R2_R11
, p
);
13338 bfd_put_32 (htab
->glink
->owner
, ADDI_R0_R12
| (-48 & 0xffff), p
);
13340 bfd_put_32 (htab
->glink
->owner
, LD_R12_0R11
, p
);
13342 bfd_put_32 (htab
->glink
->owner
, SRDI_R0_R0_2
, p
);
13344 bfd_put_32 (htab
->glink
->owner
, MTCTR_R12
, p
);
13346 bfd_put_32 (htab
->glink
->owner
, LD_R11_0R11
| 8, p
);
13349 bfd_put_32 (htab
->glink
->owner
, BCTR
, p
);
13351 while (p
- htab
->glink
->contents
< GLINK_CALL_STUB_SIZE
)
13353 bfd_put_32 (htab
->glink
->owner
, NOP
, p
);
13357 /* Build the .glink lazy link call stubs. */
13359 while (p
< htab
->glink
->contents
+ htab
->glink
->rawsize
)
13365 bfd_put_32 (htab
->glink
->owner
, LI_R0_0
| indx
, p
);
13370 bfd_put_32 (htab
->glink
->owner
, LIS_R0_0
| PPC_HI (indx
), p
);
13372 bfd_put_32 (htab
->glink
->owner
, ORI_R0_R0_0
| PPC_LO (indx
),
13377 bfd_put_32 (htab
->glink
->owner
,
13378 B_DOT
| ((htab
->glink
->contents
- p
+ 8) & 0x3fffffc), p
);
13383 /* Build .glink global entry stubs. */
13384 if (htab
->glink
->size
> htab
->glink
->rawsize
)
13385 elf_link_hash_traverse (&htab
->elf
, build_global_entry_stubs
, info
);
13388 if (htab
->brlt
!= NULL
&& htab
->brlt
->size
!= 0)
13390 htab
->brlt
->contents
= bfd_zalloc (htab
->brlt
->owner
,
13392 if (htab
->brlt
->contents
== NULL
)
13395 if (htab
->relbrlt
!= NULL
&& htab
->relbrlt
->size
!= 0)
13397 htab
->relbrlt
->contents
= bfd_zalloc (htab
->relbrlt
->owner
,
13398 htab
->relbrlt
->size
);
13399 if (htab
->relbrlt
->contents
== NULL
)
13403 /* Build the stubs as directed by the stub hash table. */
13404 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_build_one_stub
, info
);
13406 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
13407 if (group
->needs_save_res
)
13409 stub_sec
= group
->stub_sec
;
13410 memcpy (stub_sec
->contents
+ stub_sec
->size
, htab
->sfpr
->contents
,
13412 if (htab
->params
->emit_stub_syms
)
13416 for (i
= 0; i
< ARRAY_SIZE (save_res_funcs
); i
++)
13417 if (!sfpr_define (info
, &save_res_funcs
[i
], stub_sec
))
13420 stub_sec
->size
+= htab
->sfpr
->size
;
13423 if (htab
->relbrlt
!= NULL
)
13424 htab
->relbrlt
->reloc_count
= 0;
13426 if (htab
->params
->plt_stub_align
!= 0)
13427 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
13428 if ((stub_sec
= group
->stub_sec
) != NULL
)
13429 stub_sec
->size
= ((stub_sec
->size
13430 + (1 << htab
->params
->plt_stub_align
) - 1)
13431 & -(1 << htab
->params
->plt_stub_align
));
13433 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
13434 if ((stub_sec
= group
->stub_sec
) != NULL
)
13436 stub_sec_count
+= 1;
13437 if (stub_sec
->rawsize
!= stub_sec
->size
13438 && (htab
->stub_iteration
<= STUB_SHRINK_ITER
13439 || stub_sec
->rawsize
< stub_sec
->size
))
13445 htab
->stub_error
= TRUE
;
13446 info
->callbacks
->einfo (_("%P: stubs don't match calculated size\n"));
13449 if (htab
->stub_error
)
13454 *stats
= bfd_malloc (500);
13455 if (*stats
== NULL
)
13458 sprintf (*stats
, _("linker stubs in %u group%s\n"
13460 " toc adjust %lu\n"
13461 " long branch %lu\n"
13462 " long toc adj %lu\n"
13464 " plt call toc %lu\n"
13465 " global entry %lu"),
13467 stub_sec_count
== 1 ? "" : "s",
13468 htab
->stub_count
[ppc_stub_long_branch
- 1],
13469 htab
->stub_count
[ppc_stub_long_branch_r2off
- 1],
13470 htab
->stub_count
[ppc_stub_plt_branch
- 1],
13471 htab
->stub_count
[ppc_stub_plt_branch_r2off
- 1],
13472 htab
->stub_count
[ppc_stub_plt_call
- 1],
13473 htab
->stub_count
[ppc_stub_plt_call_r2save
- 1],
13474 htab
->stub_count
[ppc_stub_global_entry
- 1]);
13479 /* What to do when ld finds relocations against symbols defined in
13480 discarded sections. */
13482 static unsigned int
13483 ppc64_elf_action_discarded (asection
*sec
)
13485 if (strcmp (".opd", sec
->name
) == 0)
13488 if (strcmp (".toc", sec
->name
) == 0)
13491 if (strcmp (".toc1", sec
->name
) == 0)
13494 return _bfd_elf_default_action_discarded (sec
);
13497 /* The RELOCATE_SECTION function is called by the ELF backend linker
13498 to handle the relocations for a section.
13500 The relocs are always passed as Rela structures; if the section
13501 actually uses Rel structures, the r_addend field will always be
13504 This function is responsible for adjust the section contents as
13505 necessary, and (if using Rela relocs and generating a
13506 relocatable output file) adjusting the reloc addend as
13509 This function does not have to worry about setting the reloc
13510 address or the reloc symbol index.
13512 LOCAL_SYMS is a pointer to the swapped in local symbols.
13514 LOCAL_SECTIONS is an array giving the section in the input file
13515 corresponding to the st_shndx field of each local symbol.
13517 The global hash table entry for the global symbols can be found
13518 via elf_sym_hashes (input_bfd).
13520 When generating relocatable output, this function must handle
13521 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
13522 going to be the section symbol corresponding to the output
13523 section, which means that the addend must be adjusted
13527 ppc64_elf_relocate_section (bfd
*output_bfd
,
13528 struct bfd_link_info
*info
,
13530 asection
*input_section
,
13531 bfd_byte
*contents
,
13532 Elf_Internal_Rela
*relocs
,
13533 Elf_Internal_Sym
*local_syms
,
13534 asection
**local_sections
)
13536 struct ppc_link_hash_table
*htab
;
13537 Elf_Internal_Shdr
*symtab_hdr
;
13538 struct elf_link_hash_entry
**sym_hashes
;
13539 Elf_Internal_Rela
*rel
;
13540 Elf_Internal_Rela
*wrel
;
13541 Elf_Internal_Rela
*relend
;
13542 Elf_Internal_Rela outrel
;
13544 struct got_entry
**local_got_ents
;
13546 bfd_boolean ret
= TRUE
;
13547 bfd_boolean is_opd
;
13548 /* Assume 'at' branch hints. */
13549 bfd_boolean is_isa_v2
= TRUE
;
13550 bfd_vma d_offset
= (bfd_big_endian (input_bfd
) ? 2 : 0);
13552 /* Initialize howto table if needed. */
13553 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
13556 htab
= ppc_hash_table (info
);
13560 /* Don't relocate stub sections. */
13561 if (input_section
->owner
== htab
->params
->stub_bfd
)
13564 BFD_ASSERT (is_ppc64_elf (input_bfd
));
13566 local_got_ents
= elf_local_got_ents (input_bfd
);
13567 TOCstart
= elf_gp (output_bfd
);
13568 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
13569 sym_hashes
= elf_sym_hashes (input_bfd
);
13570 is_opd
= ppc64_elf_section_data (input_section
)->sec_type
== sec_opd
;
13572 rel
= wrel
= relocs
;
13573 relend
= relocs
+ input_section
->reloc_count
;
13574 for (; rel
< relend
; wrel
++, rel
++)
13576 enum elf_ppc64_reloc_type r_type
;
13578 bfd_reloc_status_type r
;
13579 Elf_Internal_Sym
*sym
;
13581 struct elf_link_hash_entry
*h_elf
;
13582 struct ppc_link_hash_entry
*h
;
13583 struct ppc_link_hash_entry
*fdh
;
13584 const char *sym_name
;
13585 unsigned long r_symndx
, toc_symndx
;
13586 bfd_vma toc_addend
;
13587 unsigned char tls_mask
, tls_gd
, tls_type
;
13588 unsigned char sym_type
;
13589 bfd_vma relocation
;
13590 bfd_boolean unresolved_reloc
;
13591 bfd_boolean warned
;
13592 enum { DEST_NORMAL
, DEST_OPD
, DEST_STUB
} reloc_dest
;
13595 struct ppc_stub_hash_entry
*stub_entry
;
13596 bfd_vma max_br_offset
;
13598 Elf_Internal_Rela orig_rel
;
13599 reloc_howto_type
*howto
;
13600 struct reloc_howto_struct alt_howto
;
13605 r_type
= ELF64_R_TYPE (rel
->r_info
);
13606 r_symndx
= ELF64_R_SYM (rel
->r_info
);
13608 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
13609 symbol of the previous ADDR64 reloc. The symbol gives us the
13610 proper TOC base to use. */
13611 if (rel
->r_info
== ELF64_R_INFO (0, R_PPC64_TOC
)
13613 && ELF64_R_TYPE (wrel
[-1].r_info
) == R_PPC64_ADDR64
13615 r_symndx
= ELF64_R_SYM (wrel
[-1].r_info
);
13621 unresolved_reloc
= FALSE
;
13624 if (r_symndx
< symtab_hdr
->sh_info
)
13626 /* It's a local symbol. */
13627 struct _opd_sec_data
*opd
;
13629 sym
= local_syms
+ r_symndx
;
13630 sec
= local_sections
[r_symndx
];
13631 sym_name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
, sec
);
13632 sym_type
= ELF64_ST_TYPE (sym
->st_info
);
13633 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
13634 opd
= get_opd_info (sec
);
13635 if (opd
!= NULL
&& opd
->adjust
!= NULL
)
13637 long adjust
= opd
->adjust
[OPD_NDX (sym
->st_value
13643 /* If this is a relocation against the opd section sym
13644 and we have edited .opd, adjust the reloc addend so
13645 that ld -r and ld --emit-relocs output is correct.
13646 If it is a reloc against some other .opd symbol,
13647 then the symbol value will be adjusted later. */
13648 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
13649 rel
->r_addend
+= adjust
;
13651 relocation
+= adjust
;
13657 bfd_boolean ignored
;
13659 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
13660 r_symndx
, symtab_hdr
, sym_hashes
,
13661 h_elf
, sec
, relocation
,
13662 unresolved_reloc
, warned
, ignored
);
13663 sym_name
= h_elf
->root
.root
.string
;
13664 sym_type
= h_elf
->type
;
13666 && sec
->owner
== output_bfd
13667 && strcmp (sec
->name
, ".opd") == 0)
13669 /* This is a symbol defined in a linker script. All
13670 such are defined in output sections, even those
13671 defined by simple assignment from a symbol defined in
13672 an input section. Transfer the symbol to an
13673 appropriate input .opd section, so that a branch to
13674 this symbol will be mapped to the location specified
13675 by the opd entry. */
13676 struct bfd_link_order
*lo
;
13677 for (lo
= sec
->map_head
.link_order
; lo
!= NULL
; lo
= lo
->next
)
13678 if (lo
->type
== bfd_indirect_link_order
)
13680 asection
*isec
= lo
->u
.indirect
.section
;
13681 if (h_elf
->root
.u
.def
.value
>= isec
->output_offset
13682 && h_elf
->root
.u
.def
.value
< (isec
->output_offset
13685 h_elf
->root
.u
.def
.value
-= isec
->output_offset
;
13686 h_elf
->root
.u
.def
.section
= isec
;
13693 h
= (struct ppc_link_hash_entry
*) h_elf
;
13695 if (sec
!= NULL
&& discarded_section (sec
))
13697 _bfd_clear_contents (ppc64_elf_howto_table
[r_type
],
13698 input_bfd
, input_section
,
13699 contents
+ rel
->r_offset
);
13700 wrel
->r_offset
= rel
->r_offset
;
13702 wrel
->r_addend
= 0;
13704 /* For ld -r, remove relocations in debug sections against
13705 symbols defined in discarded sections. Not done for
13706 non-debug to preserve relocs in .eh_frame which the
13707 eh_frame editing code expects to be present. */
13708 if (bfd_link_relocatable (info
)
13709 && (input_section
->flags
& SEC_DEBUGGING
))
13715 if (bfd_link_relocatable (info
))
13718 if (h
!= NULL
&& &h
->elf
== htab
->elf
.hgot
)
13720 relocation
= TOCstart
+ htab
->sec_info
[input_section
->id
].toc_off
;
13721 sec
= bfd_abs_section_ptr
;
13722 unresolved_reloc
= FALSE
;
13725 /* TLS optimizations. Replace instruction sequences and relocs
13726 based on information we collected in tls_optimize. We edit
13727 RELOCS so that --emit-relocs will output something sensible
13728 for the final instruction stream. */
13733 tls_mask
= h
->tls_mask
;
13734 else if (local_got_ents
!= NULL
)
13736 struct plt_entry
**local_plt
= (struct plt_entry
**)
13737 (local_got_ents
+ symtab_hdr
->sh_info
);
13738 unsigned char *lgot_masks
= (unsigned char *)
13739 (local_plt
+ symtab_hdr
->sh_info
);
13740 tls_mask
= lgot_masks
[r_symndx
];
13743 && (r_type
== R_PPC64_TLS
13744 || r_type
== R_PPC64_TLSGD
13745 || r_type
== R_PPC64_TLSLD
))
13747 /* Check for toc tls entries. */
13748 unsigned char *toc_tls
;
13750 if (!get_tls_mask (&toc_tls
, &toc_symndx
, &toc_addend
,
13751 &local_syms
, rel
, input_bfd
))
13755 tls_mask
= *toc_tls
;
13758 /* Check that tls relocs are used with tls syms, and non-tls
13759 relocs are used with non-tls syms. */
13760 if (r_symndx
!= STN_UNDEF
13761 && r_type
!= R_PPC64_NONE
13763 || h
->elf
.root
.type
== bfd_link_hash_defined
13764 || h
->elf
.root
.type
== bfd_link_hash_defweak
)
13765 && (IS_PPC64_TLS_RELOC (r_type
)
13766 != (sym_type
== STT_TLS
13767 || (sym_type
== STT_SECTION
13768 && (sec
->flags
& SEC_THREAD_LOCAL
) != 0))))
13771 && (r_type
== R_PPC64_TLS
13772 || r_type
== R_PPC64_TLSGD
13773 || r_type
== R_PPC64_TLSLD
))
13774 /* R_PPC64_TLS is OK against a symbol in the TOC. */
13777 info
->callbacks
->einfo
13778 (!IS_PPC64_TLS_RELOC (r_type
)
13779 /* xgettext:c-format */
13780 ? _("%H: %s used with TLS symbol `%T'\n")
13781 /* xgettext:c-format */
13782 : _("%H: %s used with non-TLS symbol `%T'\n"),
13783 input_bfd
, input_section
, rel
->r_offset
,
13784 ppc64_elf_howto_table
[r_type
]->name
,
13788 /* Ensure reloc mapping code below stays sane. */
13789 if (R_PPC64_TOC16_LO_DS
!= R_PPC64_TOC16_DS
+ 1
13790 || R_PPC64_TOC16_LO
!= R_PPC64_TOC16
+ 1
13791 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TLSGD16
& 3)
13792 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TLSGD16_LO
& 3)
13793 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TLSGD16_HI
& 3)
13794 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TLSGD16_HA
& 3)
13795 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TPREL16_DS
& 3)
13796 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TPREL16_LO_DS
& 3)
13797 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TPREL16_HI
& 3)
13798 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TPREL16_HA
& 3))
13806 case R_PPC64_LO_DS_OPT
:
13807 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
- d_offset
);
13808 if ((insn
& (0x3f << 26)) != 58u << 26)
13810 insn
+= (14u << 26) - (58u << 26);
13811 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
- d_offset
);
13812 r_type
= R_PPC64_TOC16_LO
;
13813 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
13816 case R_PPC64_TOC16
:
13817 case R_PPC64_TOC16_LO
:
13818 case R_PPC64_TOC16_DS
:
13819 case R_PPC64_TOC16_LO_DS
:
13821 /* Check for toc tls entries. */
13822 unsigned char *toc_tls
;
13825 retval
= get_tls_mask (&toc_tls
, &toc_symndx
, &toc_addend
,
13826 &local_syms
, rel
, input_bfd
);
13832 tls_mask
= *toc_tls
;
13833 if (r_type
== R_PPC64_TOC16_DS
13834 || r_type
== R_PPC64_TOC16_LO_DS
)
13837 && (tls_mask
& (TLS_DTPREL
| TLS_TPREL
)) == 0)
13842 /* If we found a GD reloc pair, then we might be
13843 doing a GD->IE transition. */
13846 tls_gd
= TLS_TPRELGD
;
13847 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
13850 else if (retval
== 3)
13852 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
13860 case R_PPC64_GOT_TPREL16_HI
:
13861 case R_PPC64_GOT_TPREL16_HA
:
13863 && (tls_mask
& TLS_TPREL
) == 0)
13865 rel
->r_offset
-= d_offset
;
13866 bfd_put_32 (input_bfd
, NOP
, contents
+ rel
->r_offset
);
13867 r_type
= R_PPC64_NONE
;
13868 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
13872 case R_PPC64_GOT_TPREL16_DS
:
13873 case R_PPC64_GOT_TPREL16_LO_DS
:
13875 && (tls_mask
& TLS_TPREL
) == 0)
13878 insn
= bfd_get_32 (input_bfd
,
13879 contents
+ rel
->r_offset
- d_offset
);
13881 insn
|= 0x3c0d0000; /* addis 0,13,0 */
13882 bfd_put_32 (input_bfd
, insn
,
13883 contents
+ rel
->r_offset
- d_offset
);
13884 r_type
= R_PPC64_TPREL16_HA
;
13885 if (toc_symndx
!= 0)
13887 rel
->r_info
= ELF64_R_INFO (toc_symndx
, r_type
);
13888 rel
->r_addend
= toc_addend
;
13889 /* We changed the symbol. Start over in order to
13890 get h, sym, sec etc. right. */
13894 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
13900 && (tls_mask
& TLS_TPREL
) == 0)
13902 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
13903 insn
= _bfd_elf_ppc_at_tls_transform (insn
, 13);
13906 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
13907 /* Was PPC64_TLS which sits on insn boundary, now
13908 PPC64_TPREL16_LO which is at low-order half-word. */
13909 rel
->r_offset
+= d_offset
;
13910 r_type
= R_PPC64_TPREL16_LO
;
13911 if (toc_symndx
!= 0)
13913 rel
->r_info
= ELF64_R_INFO (toc_symndx
, r_type
);
13914 rel
->r_addend
= toc_addend
;
13915 /* We changed the symbol. Start over in order to
13916 get h, sym, sec etc. right. */
13920 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
13924 case R_PPC64_GOT_TLSGD16_HI
:
13925 case R_PPC64_GOT_TLSGD16_HA
:
13926 tls_gd
= TLS_TPRELGD
;
13927 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
13931 case R_PPC64_GOT_TLSLD16_HI
:
13932 case R_PPC64_GOT_TLSLD16_HA
:
13933 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
13936 if ((tls_mask
& tls_gd
) != 0)
13937 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
13938 + R_PPC64_GOT_TPREL16_DS
);
13941 rel
->r_offset
-= d_offset
;
13942 bfd_put_32 (input_bfd
, NOP
, contents
+ rel
->r_offset
);
13943 r_type
= R_PPC64_NONE
;
13945 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
13949 case R_PPC64_GOT_TLSGD16
:
13950 case R_PPC64_GOT_TLSGD16_LO
:
13951 tls_gd
= TLS_TPRELGD
;
13952 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
13956 case R_PPC64_GOT_TLSLD16
:
13957 case R_PPC64_GOT_TLSLD16_LO
:
13958 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
13960 unsigned int insn1
, insn2
;
13964 offset
= (bfd_vma
) -1;
13965 /* If not using the newer R_PPC64_TLSGD/LD to mark
13966 __tls_get_addr calls, we must trust that the call
13967 stays with its arg setup insns, ie. that the next
13968 reloc is the __tls_get_addr call associated with
13969 the current reloc. Edit both insns. */
13970 if (input_section
->has_tls_get_addr_call
13971 && rel
+ 1 < relend
13972 && branch_reloc_hash_match (input_bfd
, rel
+ 1,
13973 htab
->tls_get_addr
,
13974 htab
->tls_get_addr_fd
))
13975 offset
= rel
[1].r_offset
;
13976 /* We read the low GOT_TLS (or TOC16) insn because we
13977 need to keep the destination reg. It may be
13978 something other than the usual r3, and moved to r3
13979 before the call by intervening code. */
13980 insn1
= bfd_get_32 (input_bfd
,
13981 contents
+ rel
->r_offset
- d_offset
);
13982 if ((tls_mask
& tls_gd
) != 0)
13985 insn1
&= (0x1f << 21) | (0x1f << 16);
13986 insn1
|= 58 << 26; /* ld */
13987 insn2
= 0x7c636a14; /* add 3,3,13 */
13988 if (offset
!= (bfd_vma
) -1)
13989 rel
[1].r_info
= ELF64_R_INFO (STN_UNDEF
, R_PPC64_NONE
);
13990 if ((tls_mask
& TLS_EXPLICIT
) == 0)
13991 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
13992 + R_PPC64_GOT_TPREL16_DS
);
13994 r_type
+= R_PPC64_TOC16_DS
- R_PPC64_TOC16
;
13995 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14000 insn1
&= 0x1f << 21;
14001 insn1
|= 0x3c0d0000; /* addis r,13,0 */
14002 insn2
= 0x38630000; /* addi 3,3,0 */
14005 /* Was an LD reloc. */
14007 sec
= local_sections
[toc_symndx
];
14009 r_symndx
< symtab_hdr
->sh_info
;
14011 if (local_sections
[r_symndx
] == sec
)
14013 if (r_symndx
>= symtab_hdr
->sh_info
)
14014 r_symndx
= STN_UNDEF
;
14015 rel
->r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
14016 if (r_symndx
!= STN_UNDEF
)
14017 rel
->r_addend
-= (local_syms
[r_symndx
].st_value
14018 + sec
->output_offset
14019 + sec
->output_section
->vma
);
14021 else if (toc_symndx
!= 0)
14023 r_symndx
= toc_symndx
;
14024 rel
->r_addend
= toc_addend
;
14026 r_type
= R_PPC64_TPREL16_HA
;
14027 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14028 if (offset
!= (bfd_vma
) -1)
14030 rel
[1].r_info
= ELF64_R_INFO (r_symndx
,
14031 R_PPC64_TPREL16_LO
);
14032 rel
[1].r_offset
= offset
+ d_offset
;
14033 rel
[1].r_addend
= rel
->r_addend
;
14036 bfd_put_32 (input_bfd
, insn1
,
14037 contents
+ rel
->r_offset
- d_offset
);
14038 if (offset
!= (bfd_vma
) -1)
14039 bfd_put_32 (input_bfd
, insn2
, contents
+ offset
);
14040 if ((tls_mask
& tls_gd
) == 0
14041 && (tls_gd
== 0 || toc_symndx
!= 0))
14043 /* We changed the symbol. Start over in order
14044 to get h, sym, sec etc. right. */
14050 case R_PPC64_TLSGD
:
14051 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
14053 unsigned int insn2
;
14054 bfd_vma offset
= rel
->r_offset
;
14056 if ((tls_mask
& TLS_TPRELGD
) != 0)
14059 r_type
= R_PPC64_NONE
;
14060 insn2
= 0x7c636a14; /* add 3,3,13 */
14065 if (toc_symndx
!= 0)
14067 r_symndx
= toc_symndx
;
14068 rel
->r_addend
= toc_addend
;
14070 r_type
= R_PPC64_TPREL16_LO
;
14071 rel
->r_offset
= offset
+ d_offset
;
14072 insn2
= 0x38630000; /* addi 3,3,0 */
14074 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14075 /* Zap the reloc on the _tls_get_addr call too. */
14076 BFD_ASSERT (offset
== rel
[1].r_offset
);
14077 rel
[1].r_info
= ELF64_R_INFO (STN_UNDEF
, R_PPC64_NONE
);
14078 bfd_put_32 (input_bfd
, insn2
, contents
+ offset
);
14079 if ((tls_mask
& TLS_TPRELGD
) == 0 && toc_symndx
!= 0)
14084 case R_PPC64_TLSLD
:
14085 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
14087 unsigned int insn2
;
14088 bfd_vma offset
= rel
->r_offset
;
14091 sec
= local_sections
[toc_symndx
];
14093 r_symndx
< symtab_hdr
->sh_info
;
14095 if (local_sections
[r_symndx
] == sec
)
14097 if (r_symndx
>= symtab_hdr
->sh_info
)
14098 r_symndx
= STN_UNDEF
;
14099 rel
->r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
14100 if (r_symndx
!= STN_UNDEF
)
14101 rel
->r_addend
-= (local_syms
[r_symndx
].st_value
14102 + sec
->output_offset
14103 + sec
->output_section
->vma
);
14105 r_type
= R_PPC64_TPREL16_LO
;
14106 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14107 rel
->r_offset
= offset
+ d_offset
;
14108 /* Zap the reloc on the _tls_get_addr call too. */
14109 BFD_ASSERT (offset
== rel
[1].r_offset
);
14110 rel
[1].r_info
= ELF64_R_INFO (STN_UNDEF
, R_PPC64_NONE
);
14111 insn2
= 0x38630000; /* addi 3,3,0 */
14112 bfd_put_32 (input_bfd
, insn2
, contents
+ offset
);
14117 case R_PPC64_DTPMOD64
:
14118 if (rel
+ 1 < relend
14119 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
14120 && rel
[1].r_offset
== rel
->r_offset
+ 8)
14122 if ((tls_mask
& TLS_GD
) == 0)
14124 rel
[1].r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_NONE
);
14125 if ((tls_mask
& TLS_TPRELGD
) != 0)
14126 r_type
= R_PPC64_TPREL64
;
14129 bfd_put_64 (output_bfd
, 1, contents
+ rel
->r_offset
);
14130 r_type
= R_PPC64_NONE
;
14132 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14137 if ((tls_mask
& TLS_LD
) == 0)
14139 bfd_put_64 (output_bfd
, 1, contents
+ rel
->r_offset
);
14140 r_type
= R_PPC64_NONE
;
14141 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14146 case R_PPC64_TPREL64
:
14147 if ((tls_mask
& TLS_TPREL
) == 0)
14149 r_type
= R_PPC64_NONE
;
14150 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14154 case R_PPC64_ENTRY
:
14155 relocation
= TOCstart
+ htab
->sec_info
[input_section
->id
].toc_off
;
14156 if (!bfd_link_pic (info
)
14157 && !info
->traditional_format
14158 && relocation
+ 0x80008000 <= 0xffffffff)
14160 unsigned int insn1
, insn2
;
14162 insn1
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
14163 insn2
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
14164 if ((insn1
& ~0xfffc) == LD_R2_0R12
14165 && insn2
== ADD_R2_R2_R12
)
14167 bfd_put_32 (input_bfd
,
14168 LIS_R2
+ PPC_HA (relocation
),
14169 contents
+ rel
->r_offset
);
14170 bfd_put_32 (input_bfd
,
14171 ADDI_R2_R2
+ PPC_LO (relocation
),
14172 contents
+ rel
->r_offset
+ 4);
14177 relocation
-= (rel
->r_offset
14178 + input_section
->output_offset
14179 + input_section
->output_section
->vma
);
14180 if (relocation
+ 0x80008000 <= 0xffffffff)
14182 unsigned int insn1
, insn2
;
14184 insn1
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
14185 insn2
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
14186 if ((insn1
& ~0xfffc) == LD_R2_0R12
14187 && insn2
== ADD_R2_R2_R12
)
14189 bfd_put_32 (input_bfd
,
14190 ADDIS_R2_R12
+ PPC_HA (relocation
),
14191 contents
+ rel
->r_offset
);
14192 bfd_put_32 (input_bfd
,
14193 ADDI_R2_R2
+ PPC_LO (relocation
),
14194 contents
+ rel
->r_offset
+ 4);
14200 case R_PPC64_REL16_HA
:
14201 /* If we are generating a non-PIC executable, edit
14202 . 0: addis 2,12,.TOC.-0b@ha
14203 . addi 2,2,.TOC.-0b@l
14204 used by ELFv2 global entry points to set up r2, to
14207 if .TOC. is in range. */
14208 if (!bfd_link_pic (info
)
14209 && !info
->traditional_format
14211 && rel
->r_addend
== d_offset
14212 && h
!= NULL
&& &h
->elf
== htab
->elf
.hgot
14213 && rel
+ 1 < relend
14214 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_REL16_LO
)
14215 && rel
[1].r_offset
== rel
->r_offset
+ 4
14216 && rel
[1].r_addend
== rel
->r_addend
+ 4
14217 && relocation
+ 0x80008000 <= 0xffffffff)
14219 unsigned int insn1
, insn2
;
14220 bfd_vma offset
= rel
->r_offset
- d_offset
;
14221 insn1
= bfd_get_32 (input_bfd
, contents
+ offset
);
14222 insn2
= bfd_get_32 (input_bfd
, contents
+ offset
+ 4);
14223 if ((insn1
& 0xffff0000) == ADDIS_R2_R12
14224 && (insn2
& 0xffff0000) == ADDI_R2_R2
)
14226 r_type
= R_PPC64_ADDR16_HA
;
14227 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
14228 rel
->r_addend
-= d_offset
;
14229 rel
[1].r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_ADDR16_LO
);
14230 rel
[1].r_addend
-= d_offset
+ 4;
14231 bfd_put_32 (input_bfd
, LIS_R2
, contents
+ offset
);
14237 /* Handle other relocations that tweak non-addend part of insn. */
14239 max_br_offset
= 1 << 25;
14240 addend
= rel
->r_addend
;
14241 reloc_dest
= DEST_NORMAL
;
14247 case R_PPC64_TOCSAVE
:
14248 if (relocation
+ addend
== (rel
->r_offset
14249 + input_section
->output_offset
14250 + input_section
->output_section
->vma
)
14251 && tocsave_find (htab
, NO_INSERT
,
14252 &local_syms
, rel
, input_bfd
))
14254 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
14256 || insn
== CROR_151515
|| insn
== CROR_313131
)
14257 bfd_put_32 (input_bfd
,
14258 STD_R2_0R1
+ STK_TOC (htab
),
14259 contents
+ rel
->r_offset
);
14263 /* Branch taken prediction relocations. */
14264 case R_PPC64_ADDR14_BRTAKEN
:
14265 case R_PPC64_REL14_BRTAKEN
:
14266 insn
= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
14267 /* Fall through. */
14269 /* Branch not taken prediction relocations. */
14270 case R_PPC64_ADDR14_BRNTAKEN
:
14271 case R_PPC64_REL14_BRNTAKEN
:
14272 insn
|= bfd_get_32 (input_bfd
,
14273 contents
+ rel
->r_offset
) & ~(0x01 << 21);
14274 /* Fall through. */
14276 case R_PPC64_REL14
:
14277 max_br_offset
= 1 << 15;
14278 /* Fall through. */
14280 case R_PPC64_REL24
:
14281 /* Calls to functions with a different TOC, such as calls to
14282 shared objects, need to alter the TOC pointer. This is
14283 done using a linkage stub. A REL24 branching to these
14284 linkage stubs needs to be followed by a nop, as the nop
14285 will be replaced with an instruction to restore the TOC
14290 && h
->oh
->is_func_descriptor
)
14291 fdh
= ppc_follow_link (h
->oh
);
14292 stub_entry
= ppc_get_stub_entry (input_section
, sec
, fdh
, &orig_rel
,
14294 if (stub_entry
!= NULL
14295 && (stub_entry
->stub_type
== ppc_stub_plt_call
14296 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
14297 || stub_entry
->stub_type
== ppc_stub_plt_branch_r2off
14298 || stub_entry
->stub_type
== ppc_stub_long_branch_r2off
))
14300 bfd_boolean can_plt_call
= FALSE
;
14302 if (stub_entry
->stub_type
== ppc_stub_plt_call
14304 && htab
->params
->plt_localentry0
!= 0
14305 && is_elfv2_localentry0 (&h
->elf
))
14307 /* The function doesn't use or change r2. */
14308 can_plt_call
= TRUE
;
14311 /* All of these stubs may modify r2, so there must be a
14312 branch and link followed by a nop. The nop is
14313 replaced by an insn to restore r2. */
14314 else if (rel
->r_offset
+ 8 <= input_section
->size
)
14318 br
= bfd_get_32 (input_bfd
,
14319 contents
+ rel
->r_offset
);
14324 nop
= bfd_get_32 (input_bfd
,
14325 contents
+ rel
->r_offset
+ 4);
14327 || nop
== CROR_151515
|| nop
== CROR_313131
)
14330 && (h
== htab
->tls_get_addr_fd
14331 || h
== htab
->tls_get_addr
)
14332 && htab
->params
->tls_get_addr_opt
)
14334 /* Special stub used, leave nop alone. */
14337 bfd_put_32 (input_bfd
,
14338 LD_R2_0R1
+ STK_TOC (htab
),
14339 contents
+ rel
->r_offset
+ 4);
14340 can_plt_call
= TRUE
;
14345 if (!can_plt_call
&& h
!= NULL
)
14347 const char *name
= h
->elf
.root
.root
.string
;
14352 if (strncmp (name
, "__libc_start_main", 17) == 0
14353 && (name
[17] == 0 || name
[17] == '@'))
14355 /* Allow crt1 branch to go via a toc adjusting
14356 stub. Other calls that never return could do
14357 the same, if we could detect such. */
14358 can_plt_call
= TRUE
;
14364 /* g++ as of 20130507 emits self-calls without a
14365 following nop. This is arguably wrong since we
14366 have conflicting information. On the one hand a
14367 global symbol and on the other a local call
14368 sequence, but don't error for this special case.
14369 It isn't possible to cheaply verify we have
14370 exactly such a call. Allow all calls to the same
14372 asection
*code_sec
= sec
;
14374 if (get_opd_info (sec
) != NULL
)
14376 bfd_vma off
= (relocation
+ addend
14377 - sec
->output_section
->vma
14378 - sec
->output_offset
);
14380 opd_entry_value (sec
, off
, &code_sec
, NULL
, FALSE
);
14382 if (code_sec
== input_section
)
14383 can_plt_call
= TRUE
;
14388 if (stub_entry
->stub_type
== ppc_stub_plt_call
14389 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
14390 info
->callbacks
->einfo
14391 /* xgettext:c-format */
14392 (_("%H: call to `%T' lacks nop, can't restore toc; "
14393 "recompile with -fPIC\n"),
14394 input_bfd
, input_section
, rel
->r_offset
, sym_name
);
14396 info
->callbacks
->einfo
14397 /* xgettext:c-format */
14398 (_("%H: call to `%T' lacks nop, can't restore toc; "
14399 "(-mcmodel=small toc adjust stub)\n"),
14400 input_bfd
, input_section
, rel
->r_offset
, sym_name
);
14402 bfd_set_error (bfd_error_bad_value
);
14407 && (stub_entry
->stub_type
== ppc_stub_plt_call
14408 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
))
14409 unresolved_reloc
= FALSE
;
14412 if ((stub_entry
== NULL
14413 || stub_entry
->stub_type
== ppc_stub_long_branch
14414 || stub_entry
->stub_type
== ppc_stub_plt_branch
)
14415 && get_opd_info (sec
) != NULL
)
14417 /* The branch destination is the value of the opd entry. */
14418 bfd_vma off
= (relocation
+ addend
14419 - sec
->output_section
->vma
14420 - sec
->output_offset
);
14421 bfd_vma dest
= opd_entry_value (sec
, off
, NULL
, NULL
, FALSE
);
14422 if (dest
!= (bfd_vma
) -1)
14426 reloc_dest
= DEST_OPD
;
14430 /* If the branch is out of reach we ought to have a long
14432 from
= (rel
->r_offset
14433 + input_section
->output_offset
14434 + input_section
->output_section
->vma
);
14436 relocation
+= PPC64_LOCAL_ENTRY_OFFSET (fdh
14440 if (stub_entry
!= NULL
14441 && (stub_entry
->stub_type
== ppc_stub_long_branch
14442 || stub_entry
->stub_type
== ppc_stub_plt_branch
)
14443 && (r_type
== R_PPC64_ADDR14_BRTAKEN
14444 || r_type
== R_PPC64_ADDR14_BRNTAKEN
14445 || (relocation
+ addend
- from
+ max_br_offset
14446 < 2 * max_br_offset
)))
14447 /* Don't use the stub if this branch is in range. */
14450 if (stub_entry
!= NULL
)
14452 /* Munge up the value and addend so that we call the stub
14453 rather than the procedure directly. */
14454 asection
*stub_sec
= stub_entry
->group
->stub_sec
;
14456 if (stub_entry
->stub_type
== ppc_stub_save_res
)
14457 relocation
+= (stub_sec
->output_offset
14458 + stub_sec
->output_section
->vma
14459 + stub_sec
->size
- htab
->sfpr
->size
14460 - htab
->sfpr
->output_offset
14461 - htab
->sfpr
->output_section
->vma
);
14463 relocation
= (stub_entry
->stub_offset
14464 + stub_sec
->output_offset
14465 + stub_sec
->output_section
->vma
);
14467 reloc_dest
= DEST_STUB
;
14469 if ((stub_entry
->stub_type
== ppc_stub_plt_call
14470 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
14471 && (ALWAYS_EMIT_R2SAVE
14472 || stub_entry
->stub_type
== ppc_stub_plt_call_r2save
)
14473 && rel
+ 1 < relend
14474 && rel
[1].r_offset
== rel
->r_offset
+ 4
14475 && ELF64_R_TYPE (rel
[1].r_info
) == R_PPC64_TOCSAVE
)
14483 /* Set 'a' bit. This is 0b00010 in BO field for branch
14484 on CR(BI) insns (BO == 001at or 011at), and 0b01000
14485 for branch on CTR insns (BO == 1a00t or 1a01t). */
14486 if ((insn
& (0x14 << 21)) == (0x04 << 21))
14487 insn
|= 0x02 << 21;
14488 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
14489 insn
|= 0x08 << 21;
14495 /* Invert 'y' bit if not the default. */
14496 if ((bfd_signed_vma
) (relocation
+ addend
- from
) < 0)
14497 insn
^= 0x01 << 21;
14500 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
14503 /* NOP out calls to undefined weak functions.
14504 We can thus call a weak function without first
14505 checking whether the function is defined. */
14507 && h
->elf
.root
.type
== bfd_link_hash_undefweak
14508 && h
->elf
.dynindx
== -1
14509 && r_type
== R_PPC64_REL24
14513 bfd_put_32 (input_bfd
, NOP
, contents
+ rel
->r_offset
);
14519 /* Set `addend'. */
14524 info
->callbacks
->einfo
14525 /* xgettext:c-format */
14526 (_("%P: %B: unknown relocation type %d for `%T'\n"),
14527 input_bfd
, (int) r_type
, sym_name
);
14529 bfd_set_error (bfd_error_bad_value
);
14535 case R_PPC64_TLSGD
:
14536 case R_PPC64_TLSLD
:
14537 case R_PPC64_TOCSAVE
:
14538 case R_PPC64_GNU_VTINHERIT
:
14539 case R_PPC64_GNU_VTENTRY
:
14540 case R_PPC64_ENTRY
:
14543 /* GOT16 relocations. Like an ADDR16 using the symbol's
14544 address in the GOT as relocation value instead of the
14545 symbol's value itself. Also, create a GOT entry for the
14546 symbol and put the symbol value there. */
14547 case R_PPC64_GOT_TLSGD16
:
14548 case R_PPC64_GOT_TLSGD16_LO
:
14549 case R_PPC64_GOT_TLSGD16_HI
:
14550 case R_PPC64_GOT_TLSGD16_HA
:
14551 tls_type
= TLS_TLS
| TLS_GD
;
14554 case R_PPC64_GOT_TLSLD16
:
14555 case R_PPC64_GOT_TLSLD16_LO
:
14556 case R_PPC64_GOT_TLSLD16_HI
:
14557 case R_PPC64_GOT_TLSLD16_HA
:
14558 tls_type
= TLS_TLS
| TLS_LD
;
14561 case R_PPC64_GOT_TPREL16_DS
:
14562 case R_PPC64_GOT_TPREL16_LO_DS
:
14563 case R_PPC64_GOT_TPREL16_HI
:
14564 case R_PPC64_GOT_TPREL16_HA
:
14565 tls_type
= TLS_TLS
| TLS_TPREL
;
14568 case R_PPC64_GOT_DTPREL16_DS
:
14569 case R_PPC64_GOT_DTPREL16_LO_DS
:
14570 case R_PPC64_GOT_DTPREL16_HI
:
14571 case R_PPC64_GOT_DTPREL16_HA
:
14572 tls_type
= TLS_TLS
| TLS_DTPREL
;
14575 case R_PPC64_GOT16
:
14576 case R_PPC64_GOT16_LO
:
14577 case R_PPC64_GOT16_HI
:
14578 case R_PPC64_GOT16_HA
:
14579 case R_PPC64_GOT16_DS
:
14580 case R_PPC64_GOT16_LO_DS
:
14583 /* Relocation is to the entry for this symbol in the global
14588 unsigned long indx
= 0;
14589 struct got_entry
*ent
;
14591 if (tls_type
== (TLS_TLS
| TLS_LD
)
14593 || !h
->elf
.def_dynamic
))
14594 ent
= ppc64_tlsld_got (input_bfd
);
14599 if (!htab
->elf
.dynamic_sections_created
14600 || h
->elf
.dynindx
== -1
14601 || SYMBOL_REFERENCES_LOCAL (info
, &h
->elf
)
14602 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, &h
->elf
))
14603 /* This is actually a static link, or it is a
14604 -Bsymbolic link and the symbol is defined
14605 locally, or the symbol was forced to be local
14606 because of a version file. */
14610 indx
= h
->elf
.dynindx
;
14611 unresolved_reloc
= FALSE
;
14613 ent
= h
->elf
.got
.glist
;
14617 if (local_got_ents
== NULL
)
14619 ent
= local_got_ents
[r_symndx
];
14622 for (; ent
!= NULL
; ent
= ent
->next
)
14623 if (ent
->addend
== orig_rel
.r_addend
14624 && ent
->owner
== input_bfd
14625 && ent
->tls_type
== tls_type
)
14631 if (ent
->is_indirect
)
14632 ent
= ent
->got
.ent
;
14633 offp
= &ent
->got
.offset
;
14634 got
= ppc64_elf_tdata (ent
->owner
)->got
;
14638 /* The offset must always be a multiple of 8. We use the
14639 least significant bit to record whether we have already
14640 processed this entry. */
14642 if ((off
& 1) != 0)
14646 /* Generate relocs for the dynamic linker, except in
14647 the case of TLSLD where we'll use one entry per
14655 ? h
->elf
.type
== STT_GNU_IFUNC
14656 : ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
);
14659 relgot
= htab
->elf
.irelplt
;
14661 htab
->local_ifunc_resolver
= 1;
14662 else if (is_static_defined (&h
->elf
))
14663 htab
->maybe_local_ifunc_resolver
= 1;
14666 || (bfd_link_pic (info
)
14668 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, &h
->elf
)
14669 || (tls_type
== (TLS_TLS
| TLS_LD
)
14670 && !h
->elf
.def_dynamic
))))
14671 relgot
= ppc64_elf_tdata (ent
->owner
)->relgot
;
14672 if (relgot
!= NULL
)
14674 outrel
.r_offset
= (got
->output_section
->vma
14675 + got
->output_offset
14677 outrel
.r_addend
= addend
;
14678 if (tls_type
& (TLS_LD
| TLS_GD
))
14680 outrel
.r_addend
= 0;
14681 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPMOD64
);
14682 if (tls_type
== (TLS_TLS
| TLS_GD
))
14684 loc
= relgot
->contents
;
14685 loc
+= (relgot
->reloc_count
++
14686 * sizeof (Elf64_External_Rela
));
14687 bfd_elf64_swap_reloca_out (output_bfd
,
14689 outrel
.r_offset
+= 8;
14690 outrel
.r_addend
= addend
;
14692 = ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
14695 else if (tls_type
== (TLS_TLS
| TLS_DTPREL
))
14696 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
14697 else if (tls_type
== (TLS_TLS
| TLS_TPREL
))
14698 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_TPREL64
);
14699 else if (indx
!= 0)
14700 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_GLOB_DAT
);
14704 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_IRELATIVE
);
14706 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
14708 /* Write the .got section contents for the sake
14710 loc
= got
->contents
+ off
;
14711 bfd_put_64 (output_bfd
, outrel
.r_addend
+ relocation
,
14715 if (indx
== 0 && tls_type
!= (TLS_TLS
| TLS_LD
))
14717 outrel
.r_addend
+= relocation
;
14718 if (tls_type
& (TLS_GD
| TLS_DTPREL
| TLS_TPREL
))
14720 if (htab
->elf
.tls_sec
== NULL
)
14721 outrel
.r_addend
= 0;
14723 outrel
.r_addend
-= htab
->elf
.tls_sec
->vma
;
14726 loc
= relgot
->contents
;
14727 loc
+= (relgot
->reloc_count
++
14728 * sizeof (Elf64_External_Rela
));
14729 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
14732 /* Init the .got section contents here if we're not
14733 emitting a reloc. */
14736 relocation
+= addend
;
14739 if (htab
->elf
.tls_sec
== NULL
)
14743 if (tls_type
& TLS_LD
)
14746 relocation
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
14747 if (tls_type
& TLS_TPREL
)
14748 relocation
+= DTP_OFFSET
- TP_OFFSET
;
14751 if (tls_type
& (TLS_GD
| TLS_LD
))
14753 bfd_put_64 (output_bfd
, relocation
,
14754 got
->contents
+ off
+ 8);
14758 bfd_put_64 (output_bfd
, relocation
,
14759 got
->contents
+ off
);
14763 if (off
>= (bfd_vma
) -2)
14766 relocation
= got
->output_section
->vma
+ got
->output_offset
+ off
;
14767 addend
= -(TOCstart
+ htab
->sec_info
[input_section
->id
].toc_off
);
14771 case R_PPC64_PLT16_HA
:
14772 case R_PPC64_PLT16_HI
:
14773 case R_PPC64_PLT16_LO
:
14774 case R_PPC64_PLT32
:
14775 case R_PPC64_PLT64
:
14776 /* Relocation is to the entry for this symbol in the
14777 procedure linkage table. */
14779 struct plt_entry
**plt_list
= NULL
;
14781 plt_list
= &h
->elf
.plt
.plist
;
14782 else if (local_got_ents
!= NULL
)
14784 struct plt_entry
**local_plt
= (struct plt_entry
**)
14785 (local_got_ents
+ symtab_hdr
->sh_info
);
14786 unsigned char *local_got_tls_masks
= (unsigned char *)
14787 (local_plt
+ symtab_hdr
->sh_info
);
14788 if ((local_got_tls_masks
[r_symndx
] & PLT_IFUNC
) != 0)
14789 plt_list
= local_plt
+ r_symndx
;
14793 struct plt_entry
*ent
;
14795 for (ent
= *plt_list
; ent
!= NULL
; ent
= ent
->next
)
14796 if (ent
->plt
.offset
!= (bfd_vma
) -1
14797 && ent
->addend
== orig_rel
.r_addend
)
14801 plt
= htab
->elf
.splt
;
14802 if (!htab
->elf
.dynamic_sections_created
14804 || h
->elf
.dynindx
== -1)
14805 plt
= htab
->elf
.iplt
;
14806 relocation
= (plt
->output_section
->vma
14807 + plt
->output_offset
14808 + ent
->plt
.offset
);
14810 unresolved_reloc
= FALSE
;
14818 /* Relocation value is TOC base. */
14819 relocation
= TOCstart
;
14820 if (r_symndx
== STN_UNDEF
)
14821 relocation
+= htab
->sec_info
[input_section
->id
].toc_off
;
14822 else if (unresolved_reloc
)
14824 else if (sec
!= NULL
&& sec
->id
< htab
->sec_info_arr_size
)
14825 relocation
+= htab
->sec_info
[sec
->id
].toc_off
;
14827 unresolved_reloc
= TRUE
;
14830 /* TOC16 relocs. We want the offset relative to the TOC base,
14831 which is the address of the start of the TOC plus 0x8000.
14832 The TOC consists of sections .got, .toc, .tocbss, and .plt,
14834 case R_PPC64_TOC16
:
14835 case R_PPC64_TOC16_LO
:
14836 case R_PPC64_TOC16_HI
:
14837 case R_PPC64_TOC16_DS
:
14838 case R_PPC64_TOC16_LO_DS
:
14839 case R_PPC64_TOC16_HA
:
14840 addend
-= TOCstart
+ htab
->sec_info
[input_section
->id
].toc_off
;
14843 /* Relocate against the beginning of the section. */
14844 case R_PPC64_SECTOFF
:
14845 case R_PPC64_SECTOFF_LO
:
14846 case R_PPC64_SECTOFF_HI
:
14847 case R_PPC64_SECTOFF_DS
:
14848 case R_PPC64_SECTOFF_LO_DS
:
14849 case R_PPC64_SECTOFF_HA
:
14851 addend
-= sec
->output_section
->vma
;
14854 case R_PPC64_REL16
:
14855 case R_PPC64_REL16_LO
:
14856 case R_PPC64_REL16_HI
:
14857 case R_PPC64_REL16_HA
:
14858 case R_PPC64_REL16DX_HA
:
14861 case R_PPC64_REL14
:
14862 case R_PPC64_REL14_BRNTAKEN
:
14863 case R_PPC64_REL14_BRTAKEN
:
14864 case R_PPC64_REL24
:
14867 case R_PPC64_TPREL16
:
14868 case R_PPC64_TPREL16_LO
:
14869 case R_PPC64_TPREL16_HI
:
14870 case R_PPC64_TPREL16_HA
:
14871 case R_PPC64_TPREL16_DS
:
14872 case R_PPC64_TPREL16_LO_DS
:
14873 case R_PPC64_TPREL16_HIGH
:
14874 case R_PPC64_TPREL16_HIGHA
:
14875 case R_PPC64_TPREL16_HIGHER
:
14876 case R_PPC64_TPREL16_HIGHERA
:
14877 case R_PPC64_TPREL16_HIGHEST
:
14878 case R_PPC64_TPREL16_HIGHESTA
:
14880 && h
->elf
.root
.type
== bfd_link_hash_undefweak
14881 && h
->elf
.dynindx
== -1)
14883 /* Make this relocation against an undefined weak symbol
14884 resolve to zero. This is really just a tweak, since
14885 code using weak externs ought to check that they are
14886 defined before using them. */
14887 bfd_byte
*p
= contents
+ rel
->r_offset
- d_offset
;
14889 insn
= bfd_get_32 (input_bfd
, p
);
14890 insn
= _bfd_elf_ppc_at_tprel_transform (insn
, 13);
14892 bfd_put_32 (input_bfd
, insn
, p
);
14895 if (htab
->elf
.tls_sec
!= NULL
)
14896 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
14897 /* The TPREL16 relocs shouldn't really be used in shared
14898 libs or with non-local symbols as that will result in
14899 DT_TEXTREL being set, but support them anyway. */
14902 case R_PPC64_DTPREL16
:
14903 case R_PPC64_DTPREL16_LO
:
14904 case R_PPC64_DTPREL16_HI
:
14905 case R_PPC64_DTPREL16_HA
:
14906 case R_PPC64_DTPREL16_DS
:
14907 case R_PPC64_DTPREL16_LO_DS
:
14908 case R_PPC64_DTPREL16_HIGH
:
14909 case R_PPC64_DTPREL16_HIGHA
:
14910 case R_PPC64_DTPREL16_HIGHER
:
14911 case R_PPC64_DTPREL16_HIGHERA
:
14912 case R_PPC64_DTPREL16_HIGHEST
:
14913 case R_PPC64_DTPREL16_HIGHESTA
:
14914 if (htab
->elf
.tls_sec
!= NULL
)
14915 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
14918 case R_PPC64_ADDR64_LOCAL
:
14919 addend
+= PPC64_LOCAL_ENTRY_OFFSET (h
!= NULL
14924 case R_PPC64_DTPMOD64
:
14929 case R_PPC64_TPREL64
:
14930 if (htab
->elf
.tls_sec
!= NULL
)
14931 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
14934 case R_PPC64_DTPREL64
:
14935 if (htab
->elf
.tls_sec
!= NULL
)
14936 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
14937 /* Fall through. */
14939 /* Relocations that may need to be propagated if this is a
14941 case R_PPC64_REL30
:
14942 case R_PPC64_REL32
:
14943 case R_PPC64_REL64
:
14944 case R_PPC64_ADDR14
:
14945 case R_PPC64_ADDR14_BRNTAKEN
:
14946 case R_PPC64_ADDR14_BRTAKEN
:
14947 case R_PPC64_ADDR16
:
14948 case R_PPC64_ADDR16_DS
:
14949 case R_PPC64_ADDR16_HA
:
14950 case R_PPC64_ADDR16_HI
:
14951 case R_PPC64_ADDR16_HIGH
:
14952 case R_PPC64_ADDR16_HIGHA
:
14953 case R_PPC64_ADDR16_HIGHER
:
14954 case R_PPC64_ADDR16_HIGHERA
:
14955 case R_PPC64_ADDR16_HIGHEST
:
14956 case R_PPC64_ADDR16_HIGHESTA
:
14957 case R_PPC64_ADDR16_LO
:
14958 case R_PPC64_ADDR16_LO_DS
:
14959 case R_PPC64_ADDR24
:
14960 case R_PPC64_ADDR32
:
14961 case R_PPC64_ADDR64
:
14962 case R_PPC64_UADDR16
:
14963 case R_PPC64_UADDR32
:
14964 case R_PPC64_UADDR64
:
14966 if ((input_section
->flags
& SEC_ALLOC
) == 0)
14969 if (NO_OPD_RELOCS
&& is_opd
)
14972 if (bfd_link_pic (info
)
14974 || h
->dyn_relocs
!= NULL
)
14975 && ((h
!= NULL
&& pc_dynrelocs (h
))
14976 || must_be_dyn_reloc (info
, r_type
)))
14978 ? h
->dyn_relocs
!= NULL
14979 : ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
))
14981 bfd_boolean skip
, relocate
;
14986 /* When generating a dynamic object, these relocations
14987 are copied into the output file to be resolved at run
14993 out_off
= _bfd_elf_section_offset (output_bfd
, info
,
14994 input_section
, rel
->r_offset
);
14995 if (out_off
== (bfd_vma
) -1)
14997 else if (out_off
== (bfd_vma
) -2)
14998 skip
= TRUE
, relocate
= TRUE
;
14999 out_off
+= (input_section
->output_section
->vma
15000 + input_section
->output_offset
);
15001 outrel
.r_offset
= out_off
;
15002 outrel
.r_addend
= rel
->r_addend
;
15004 /* Optimize unaligned reloc use. */
15005 if ((r_type
== R_PPC64_ADDR64
&& (out_off
& 7) != 0)
15006 || (r_type
== R_PPC64_UADDR64
&& (out_off
& 7) == 0))
15007 r_type
^= R_PPC64_ADDR64
^ R_PPC64_UADDR64
;
15008 else if ((r_type
== R_PPC64_ADDR32
&& (out_off
& 3) != 0)
15009 || (r_type
== R_PPC64_UADDR32
&& (out_off
& 3) == 0))
15010 r_type
^= R_PPC64_ADDR32
^ R_PPC64_UADDR32
;
15011 else if ((r_type
== R_PPC64_ADDR16
&& (out_off
& 1) != 0)
15012 || (r_type
== R_PPC64_UADDR16
&& (out_off
& 1) == 0))
15013 r_type
^= R_PPC64_ADDR16
^ R_PPC64_UADDR16
;
15016 memset (&outrel
, 0, sizeof outrel
);
15017 else if (!SYMBOL_REFERENCES_LOCAL (info
, &h
->elf
)
15019 && r_type
!= R_PPC64_TOC
)
15021 indx
= h
->elf
.dynindx
;
15022 BFD_ASSERT (indx
!= -1);
15023 outrel
.r_info
= ELF64_R_INFO (indx
, r_type
);
15027 /* This symbol is local, or marked to become local,
15028 or this is an opd section reloc which must point
15029 at a local function. */
15030 outrel
.r_addend
+= relocation
;
15031 if (r_type
== R_PPC64_ADDR64
|| r_type
== R_PPC64_TOC
)
15033 if (is_opd
&& h
!= NULL
)
15035 /* Lie about opd entries. This case occurs
15036 when building shared libraries and we
15037 reference a function in another shared
15038 lib. The same thing happens for a weak
15039 definition in an application that's
15040 overridden by a strong definition in a
15041 shared lib. (I believe this is a generic
15042 bug in binutils handling of weak syms.)
15043 In these cases we won't use the opd
15044 entry in this lib. */
15045 unresolved_reloc
= FALSE
;
15048 && r_type
== R_PPC64_ADDR64
15050 ? h
->elf
.type
== STT_GNU_IFUNC
15051 : ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
))
15052 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_IRELATIVE
);
15055 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
15057 /* We need to relocate .opd contents for ld.so.
15058 Prelink also wants simple and consistent rules
15059 for relocs. This make all RELATIVE relocs have
15060 *r_offset equal to r_addend. */
15067 ? h
->elf
.type
== STT_GNU_IFUNC
15068 : ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
)
15070 info
->callbacks
->einfo
15071 /* xgettext:c-format */
15072 (_("%H: %s for indirect "
15073 "function `%T' unsupported\n"),
15074 input_bfd
, input_section
, rel
->r_offset
,
15075 ppc64_elf_howto_table
[r_type
]->name
,
15079 else if (r_symndx
== STN_UNDEF
|| bfd_is_abs_section (sec
))
15081 else if (sec
== NULL
|| sec
->owner
== NULL
)
15083 bfd_set_error (bfd_error_bad_value
);
15090 osec
= sec
->output_section
;
15091 indx
= elf_section_data (osec
)->dynindx
;
15095 if ((osec
->flags
& SEC_READONLY
) == 0
15096 && htab
->elf
.data_index_section
!= NULL
)
15097 osec
= htab
->elf
.data_index_section
;
15099 osec
= htab
->elf
.text_index_section
;
15100 indx
= elf_section_data (osec
)->dynindx
;
15102 BFD_ASSERT (indx
!= 0);
15104 /* We are turning this relocation into one
15105 against a section symbol, so subtract out
15106 the output section's address but not the
15107 offset of the input section in the output
15109 outrel
.r_addend
-= osec
->vma
;
15112 outrel
.r_info
= ELF64_R_INFO (indx
, r_type
);
15116 sreloc
= elf_section_data (input_section
)->sreloc
;
15118 ? h
->elf
.type
== STT_GNU_IFUNC
15119 : ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
)
15121 sreloc
= htab
->elf
.irelplt
;
15123 htab
->local_ifunc_resolver
= 1;
15124 else if (is_static_defined (&h
->elf
))
15125 htab
->maybe_local_ifunc_resolver
= 1;
15127 if (sreloc
== NULL
)
15130 if (sreloc
->reloc_count
* sizeof (Elf64_External_Rela
)
15133 loc
= sreloc
->contents
;
15134 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
15135 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
15137 /* If this reloc is against an external symbol, it will
15138 be computed at runtime, so there's no need to do
15139 anything now. However, for the sake of prelink ensure
15140 that the section contents are a known value. */
15143 unresolved_reloc
= FALSE
;
15144 /* The value chosen here is quite arbitrary as ld.so
15145 ignores section contents except for the special
15146 case of .opd where the contents might be accessed
15147 before relocation. Choose zero, as that won't
15148 cause reloc overflow. */
15151 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
15152 to improve backward compatibility with older
15154 if (r_type
== R_PPC64_ADDR64
)
15155 addend
= outrel
.r_addend
;
15156 /* Adjust pc_relative relocs to have zero in *r_offset. */
15157 else if (ppc64_elf_howto_table
[r_type
]->pc_relative
)
15158 addend
= outrel
.r_offset
;
15164 case R_PPC64_GLOB_DAT
:
15165 case R_PPC64_JMP_SLOT
:
15166 case R_PPC64_JMP_IREL
:
15167 case R_PPC64_RELATIVE
:
15168 /* We shouldn't ever see these dynamic relocs in relocatable
15170 /* Fall through. */
15172 case R_PPC64_PLTGOT16
:
15173 case R_PPC64_PLTGOT16_DS
:
15174 case R_PPC64_PLTGOT16_HA
:
15175 case R_PPC64_PLTGOT16_HI
:
15176 case R_PPC64_PLTGOT16_LO
:
15177 case R_PPC64_PLTGOT16_LO_DS
:
15178 case R_PPC64_PLTREL32
:
15179 case R_PPC64_PLTREL64
:
15180 /* These ones haven't been implemented yet. */
15182 info
->callbacks
->einfo
15183 /* xgettext:c-format */
15184 (_("%P: %B: %s is not supported for `%T'\n"),
15186 ppc64_elf_howto_table
[r_type
]->name
, sym_name
);
15188 bfd_set_error (bfd_error_invalid_operation
);
15193 /* Multi-instruction sequences that access the TOC can be
15194 optimized, eg. addis ra,r2,0; addi rb,ra,x;
15195 to nop; addi rb,r2,x; */
15196 howto
= ppc64_elf_howto_table
[(int) r_type
];
15202 case R_PPC64_GOT_TLSLD16_HI
:
15203 case R_PPC64_GOT_TLSGD16_HI
:
15204 case R_PPC64_GOT_TPREL16_HI
:
15205 case R_PPC64_GOT_DTPREL16_HI
:
15206 case R_PPC64_GOT16_HI
:
15207 case R_PPC64_TOC16_HI
:
15208 /* These relocs would only be useful if building up an
15209 offset to later add to r2, perhaps in an indexed
15210 addressing mode instruction. Don't try to optimize.
15211 Unfortunately, the possibility of someone building up an
15212 offset like this or even with the HA relocs, means that
15213 we need to check the high insn when optimizing the low
15217 case R_PPC64_GOT_TLSLD16_HA
:
15218 case R_PPC64_GOT_TLSGD16_HA
:
15219 case R_PPC64_GOT_TPREL16_HA
:
15220 case R_PPC64_GOT_DTPREL16_HA
:
15221 case R_PPC64_GOT16_HA
:
15222 case R_PPC64_TOC16_HA
:
15223 if (htab
->do_toc_opt
&& relocation
+ addend
+ 0x8000 < 0x10000
15224 && !ppc64_elf_tdata (input_bfd
)->unexpected_toc_insn
)
15226 bfd_byte
*p
= contents
+ (rel
->r_offset
& ~3);
15227 bfd_put_32 (input_bfd
, NOP
, p
);
15231 case R_PPC64_GOT_TLSLD16_LO
:
15232 case R_PPC64_GOT_TLSGD16_LO
:
15233 case R_PPC64_GOT_TPREL16_LO_DS
:
15234 case R_PPC64_GOT_DTPREL16_LO_DS
:
15235 case R_PPC64_GOT16_LO
:
15236 case R_PPC64_GOT16_LO_DS
:
15237 case R_PPC64_TOC16_LO
:
15238 case R_PPC64_TOC16_LO_DS
:
15239 if (htab
->do_toc_opt
&& relocation
+ addend
+ 0x8000 < 0x10000
15240 && !ppc64_elf_tdata (input_bfd
)->unexpected_toc_insn
)
15242 bfd_byte
*p
= contents
+ (rel
->r_offset
& ~3);
15243 insn
= bfd_get_32 (input_bfd
, p
);
15244 if ((insn
& (0x3f << 26)) == 12u << 26 /* addic */)
15246 /* Transform addic to addi when we change reg. */
15247 insn
&= ~((0x3f << 26) | (0x1f << 16));
15248 insn
|= (14u << 26) | (2 << 16);
15252 insn
&= ~(0x1f << 16);
15255 bfd_put_32 (input_bfd
, insn
, p
);
15259 case R_PPC64_TPREL16_HA
:
15260 if (htab
->do_tls_opt
&& relocation
+ addend
+ 0x8000 < 0x10000)
15262 bfd_byte
*p
= contents
+ (rel
->r_offset
& ~3);
15263 insn
= bfd_get_32 (input_bfd
, p
);
15264 if ((insn
& ((0x3f << 26) | 0x1f << 16))
15265 != ((15u << 26) | (13 << 16)) /* addis rt,13,imm */)
15266 /* xgettext:c-format */
15267 info
->callbacks
->minfo
15268 (_("%H: warning: %s unexpected insn %#x.\n"),
15269 input_bfd
, input_section
, rel
->r_offset
, howto
->name
, insn
);
15271 bfd_put_32 (input_bfd
, NOP
, p
);
15275 case R_PPC64_TPREL16_LO
:
15276 case R_PPC64_TPREL16_LO_DS
:
15277 if (htab
->do_tls_opt
&& relocation
+ addend
+ 0x8000 < 0x10000)
15279 bfd_byte
*p
= contents
+ (rel
->r_offset
& ~3);
15280 insn
= bfd_get_32 (input_bfd
, p
);
15281 insn
&= ~(0x1f << 16);
15283 bfd_put_32 (input_bfd
, insn
, p
);
15288 /* Do any further special processing. */
15294 case R_PPC64_REL16_HA
:
15295 case R_PPC64_REL16DX_HA
:
15296 case R_PPC64_ADDR16_HA
:
15297 case R_PPC64_ADDR16_HIGHA
:
15298 case R_PPC64_ADDR16_HIGHERA
:
15299 case R_PPC64_ADDR16_HIGHESTA
:
15300 case R_PPC64_TOC16_HA
:
15301 case R_PPC64_SECTOFF_HA
:
15302 case R_PPC64_TPREL16_HA
:
15303 case R_PPC64_TPREL16_HIGHA
:
15304 case R_PPC64_TPREL16_HIGHERA
:
15305 case R_PPC64_TPREL16_HIGHESTA
:
15306 case R_PPC64_DTPREL16_HA
:
15307 case R_PPC64_DTPREL16_HIGHA
:
15308 case R_PPC64_DTPREL16_HIGHERA
:
15309 case R_PPC64_DTPREL16_HIGHESTA
:
15310 /* It's just possible that this symbol is a weak symbol
15311 that's not actually defined anywhere. In that case,
15312 'sec' would be NULL, and we should leave the symbol
15313 alone (it will be set to zero elsewhere in the link). */
15316 /* Fall through. */
15318 case R_PPC64_GOT16_HA
:
15319 case R_PPC64_PLTGOT16_HA
:
15320 case R_PPC64_PLT16_HA
:
15321 case R_PPC64_GOT_TLSGD16_HA
:
15322 case R_PPC64_GOT_TLSLD16_HA
:
15323 case R_PPC64_GOT_TPREL16_HA
:
15324 case R_PPC64_GOT_DTPREL16_HA
:
15325 /* Add 0x10000 if sign bit in 0:15 is set.
15326 Bits 0:15 are not used. */
15330 case R_PPC64_ADDR16_DS
:
15331 case R_PPC64_ADDR16_LO_DS
:
15332 case R_PPC64_GOT16_DS
:
15333 case R_PPC64_GOT16_LO_DS
:
15334 case R_PPC64_PLT16_LO_DS
:
15335 case R_PPC64_SECTOFF_DS
:
15336 case R_PPC64_SECTOFF_LO_DS
:
15337 case R_PPC64_TOC16_DS
:
15338 case R_PPC64_TOC16_LO_DS
:
15339 case R_PPC64_PLTGOT16_DS
:
15340 case R_PPC64_PLTGOT16_LO_DS
:
15341 case R_PPC64_GOT_TPREL16_DS
:
15342 case R_PPC64_GOT_TPREL16_LO_DS
:
15343 case R_PPC64_GOT_DTPREL16_DS
:
15344 case R_PPC64_GOT_DTPREL16_LO_DS
:
15345 case R_PPC64_TPREL16_DS
:
15346 case R_PPC64_TPREL16_LO_DS
:
15347 case R_PPC64_DTPREL16_DS
:
15348 case R_PPC64_DTPREL16_LO_DS
:
15349 insn
= bfd_get_32 (input_bfd
, contents
+ (rel
->r_offset
& ~3));
15351 /* If this reloc is against an lq, lxv, or stxv insn, then
15352 the value must be a multiple of 16. This is somewhat of
15353 a hack, but the "correct" way to do this by defining _DQ
15354 forms of all the _DS relocs bloats all reloc switches in
15355 this file. It doesn't make much sense to use these
15356 relocs in data, so testing the insn should be safe. */
15357 if ((insn
& (0x3f << 26)) == (56u << 26)
15358 || ((insn
& (0x3f << 26)) == (61u << 26) && (insn
& 3) == 1))
15360 relocation
+= addend
;
15361 addend
= insn
& (mask
^ 3);
15362 if ((relocation
& mask
) != 0)
15364 relocation
^= relocation
& mask
;
15365 info
->callbacks
->einfo
15366 /* xgettext:c-format */
15367 (_("%H: error: %s not a multiple of %u\n"),
15368 input_bfd
, input_section
, rel
->r_offset
,
15371 bfd_set_error (bfd_error_bad_value
);
15378 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
15379 because such sections are not SEC_ALLOC and thus ld.so will
15380 not process them. */
15381 if (unresolved_reloc
15382 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
15383 && h
->elf
.def_dynamic
)
15384 && _bfd_elf_section_offset (output_bfd
, info
, input_section
,
15385 rel
->r_offset
) != (bfd_vma
) -1)
15387 info
->callbacks
->einfo
15388 /* xgettext:c-format */
15389 (_("%H: unresolvable %s against `%T'\n"),
15390 input_bfd
, input_section
, rel
->r_offset
,
15392 h
->elf
.root
.root
.string
);
15396 /* 16-bit fields in insns mostly have signed values, but a
15397 few insns have 16-bit unsigned values. Really, we should
15398 have different reloc types. */
15399 if (howto
->complain_on_overflow
!= complain_overflow_dont
15400 && howto
->dst_mask
== 0xffff
15401 && (input_section
->flags
& SEC_CODE
) != 0)
15403 enum complain_overflow complain
= complain_overflow_signed
;
15405 insn
= bfd_get_32 (input_bfd
, contents
+ (rel
->r_offset
& ~3));
15406 if ((insn
& (0x3f << 26)) == 10u << 26 /* cmpli */)
15407 complain
= complain_overflow_bitfield
;
15408 else if (howto
->rightshift
== 0
15409 ? ((insn
& (0x3f << 26)) == 28u << 26 /* andi */
15410 || (insn
& (0x3f << 26)) == 24u << 26 /* ori */
15411 || (insn
& (0x3f << 26)) == 26u << 26 /* xori */)
15412 : ((insn
& (0x3f << 26)) == 29u << 26 /* andis */
15413 || (insn
& (0x3f << 26)) == 25u << 26 /* oris */
15414 || (insn
& (0x3f << 26)) == 27u << 26 /* xoris */))
15415 complain
= complain_overflow_unsigned
;
15416 if (howto
->complain_on_overflow
!= complain
)
15418 alt_howto
= *howto
;
15419 alt_howto
.complain_on_overflow
= complain
;
15420 howto
= &alt_howto
;
15424 if (r_type
== R_PPC64_REL16DX_HA
)
15426 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
15427 if (rel
->r_offset
+ 4 > input_section
->size
)
15428 r
= bfd_reloc_outofrange
;
15431 relocation
+= addend
;
15432 relocation
-= (rel
->r_offset
15433 + input_section
->output_offset
15434 + input_section
->output_section
->vma
);
15435 relocation
= (bfd_signed_vma
) relocation
>> 16;
15436 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
15438 insn
|= (relocation
& 0xffc1) | ((relocation
& 0x3e) << 15);
15439 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
15441 if (relocation
+ 0x8000 > 0xffff)
15442 r
= bfd_reloc_overflow
;
15446 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
, contents
,
15447 rel
->r_offset
, relocation
, addend
);
15449 if (r
!= bfd_reloc_ok
)
15451 char *more_info
= NULL
;
15452 const char *reloc_name
= howto
->name
;
15454 if (reloc_dest
!= DEST_NORMAL
)
15456 more_info
= bfd_malloc (strlen (reloc_name
) + 8);
15457 if (more_info
!= NULL
)
15459 strcpy (more_info
, reloc_name
);
15460 strcat (more_info
, (reloc_dest
== DEST_OPD
15461 ? " (OPD)" : " (stub)"));
15462 reloc_name
= more_info
;
15466 if (r
== bfd_reloc_overflow
)
15468 /* On code like "if (foo) foo();" don't report overflow
15469 on a branch to zero when foo is undefined. */
15471 && (reloc_dest
== DEST_STUB
15473 && (h
->elf
.root
.type
== bfd_link_hash_undefweak
15474 || h
->elf
.root
.type
== bfd_link_hash_undefined
)
15475 && is_branch_reloc (r_type
))))
15476 info
->callbacks
->reloc_overflow (info
, &h
->elf
.root
,
15477 sym_name
, reloc_name
,
15479 input_bfd
, input_section
,
15484 info
->callbacks
->einfo
15485 /* xgettext:c-format */
15486 (_("%H: %s against `%T': error %d\n"),
15487 input_bfd
, input_section
, rel
->r_offset
,
15488 reloc_name
, sym_name
, (int) r
);
15491 if (more_info
!= NULL
)
15501 Elf_Internal_Shdr
*rel_hdr
;
15502 size_t deleted
= rel
- wrel
;
15504 rel_hdr
= _bfd_elf_single_rel_hdr (input_section
->output_section
);
15505 rel_hdr
->sh_size
-= rel_hdr
->sh_entsize
* deleted
;
15506 if (rel_hdr
->sh_size
== 0)
15508 /* It is too late to remove an empty reloc section. Leave
15510 ??? What is wrong with an empty section??? */
15511 rel_hdr
->sh_size
= rel_hdr
->sh_entsize
;
15514 rel_hdr
= _bfd_elf_single_rel_hdr (input_section
);
15515 rel_hdr
->sh_size
-= rel_hdr
->sh_entsize
* deleted
;
15516 input_section
->reloc_count
-= deleted
;
15519 /* If we're emitting relocations, then shortly after this function
15520 returns, reloc offsets and addends for this section will be
15521 adjusted. Worse, reloc symbol indices will be for the output
15522 file rather than the input. Save a copy of the relocs for
15523 opd_entry_value. */
15524 if (is_opd
&& (info
->emitrelocations
|| bfd_link_relocatable (info
)))
15527 amt
= input_section
->reloc_count
* sizeof (Elf_Internal_Rela
);
15528 rel
= bfd_alloc (input_bfd
, amt
);
15529 BFD_ASSERT (ppc64_elf_tdata (input_bfd
)->opd
.relocs
== NULL
);
15530 ppc64_elf_tdata (input_bfd
)->opd
.relocs
= rel
;
15533 memcpy (rel
, relocs
, amt
);
15538 /* Adjust the value of any local symbols in opd sections. */
15541 ppc64_elf_output_symbol_hook (struct bfd_link_info
*info
,
15542 const char *name ATTRIBUTE_UNUSED
,
15543 Elf_Internal_Sym
*elfsym
,
15544 asection
*input_sec
,
15545 struct elf_link_hash_entry
*h
)
15547 struct _opd_sec_data
*opd
;
15554 opd
= get_opd_info (input_sec
);
15555 if (opd
== NULL
|| opd
->adjust
== NULL
)
15558 value
= elfsym
->st_value
- input_sec
->output_offset
;
15559 if (!bfd_link_relocatable (info
))
15560 value
-= input_sec
->output_section
->vma
;
15562 adjust
= opd
->adjust
[OPD_NDX (value
)];
15566 elfsym
->st_value
+= adjust
;
15570 /* Finish up dynamic symbol handling. We set the contents of various
15571 dynamic sections here. */
15574 ppc64_elf_finish_dynamic_symbol (bfd
*output_bfd
,
15575 struct bfd_link_info
*info
,
15576 struct elf_link_hash_entry
*h
,
15577 Elf_Internal_Sym
*sym
)
15579 struct ppc_link_hash_table
*htab
;
15580 struct plt_entry
*ent
;
15581 Elf_Internal_Rela rela
;
15584 htab
= ppc_hash_table (info
);
15588 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
15589 if (ent
->plt
.offset
!= (bfd_vma
) -1)
15591 /* This symbol has an entry in the procedure linkage
15592 table. Set it up. */
15593 if (!htab
->elf
.dynamic_sections_created
15594 || h
->dynindx
== -1)
15596 BFD_ASSERT (h
->type
== STT_GNU_IFUNC
15598 && (h
->root
.type
== bfd_link_hash_defined
15599 || h
->root
.type
== bfd_link_hash_defweak
));
15600 rela
.r_offset
= (htab
->elf
.iplt
->output_section
->vma
15601 + htab
->elf
.iplt
->output_offset
15602 + ent
->plt
.offset
);
15604 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_JMP_IREL
);
15606 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_IRELATIVE
);
15607 rela
.r_addend
= (h
->root
.u
.def
.value
15608 + h
->root
.u
.def
.section
->output_offset
15609 + h
->root
.u
.def
.section
->output_section
->vma
15611 loc
= (htab
->elf
.irelplt
->contents
15612 + (htab
->elf
.irelplt
->reloc_count
++
15613 * sizeof (Elf64_External_Rela
)));
15614 htab
->local_ifunc_resolver
= 1;
15618 rela
.r_offset
= (htab
->elf
.splt
->output_section
->vma
15619 + htab
->elf
.splt
->output_offset
15620 + ent
->plt
.offset
);
15621 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_JMP_SLOT
);
15622 rela
.r_addend
= ent
->addend
;
15623 loc
= (htab
->elf
.srelplt
->contents
15624 + ((ent
->plt
.offset
- PLT_INITIAL_ENTRY_SIZE (htab
))
15625 / PLT_ENTRY_SIZE (htab
) * sizeof (Elf64_External_Rela
)));
15626 if (h
->type
== STT_GNU_IFUNC
&& is_static_defined (h
))
15627 htab
->maybe_local_ifunc_resolver
= 1;
15629 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
15631 if (!htab
->opd_abi
)
15633 if (!h
->def_regular
)
15635 /* Mark the symbol as undefined, rather than as
15636 defined in glink. Leave the value if there were
15637 any relocations where pointer equality matters
15638 (this is a clue for the dynamic linker, to make
15639 function pointer comparisons work between an
15640 application and shared library), otherwise set it
15642 sym
->st_shndx
= SHN_UNDEF
;
15643 if (!h
->pointer_equality_needed
)
15645 else if (!h
->ref_regular_nonweak
)
15647 /* This breaks function pointer comparisons, but
15648 that is better than breaking tests for a NULL
15649 function pointer. */
15658 /* This symbol needs a copy reloc. Set it up. */
15661 if (h
->dynindx
== -1
15662 || (h
->root
.type
!= bfd_link_hash_defined
15663 && h
->root
.type
!= bfd_link_hash_defweak
)
15664 || htab
->elf
.srelbss
== NULL
15665 || htab
->elf
.sreldynrelro
== NULL
)
15668 rela
.r_offset
= (h
->root
.u
.def
.value
15669 + h
->root
.u
.def
.section
->output_section
->vma
15670 + h
->root
.u
.def
.section
->output_offset
);
15671 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_COPY
);
15673 if (h
->root
.u
.def
.section
== htab
->elf
.sdynrelro
)
15674 srel
= htab
->elf
.sreldynrelro
;
15676 srel
= htab
->elf
.srelbss
;
15677 loc
= srel
->contents
;
15678 loc
+= srel
->reloc_count
++ * sizeof (Elf64_External_Rela
);
15679 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
15685 /* Used to decide how to sort relocs in an optimal manner for the
15686 dynamic linker, before writing them out. */
15688 static enum elf_reloc_type_class
15689 ppc64_elf_reloc_type_class (const struct bfd_link_info
*info
,
15690 const asection
*rel_sec
,
15691 const Elf_Internal_Rela
*rela
)
15693 enum elf_ppc64_reloc_type r_type
;
15694 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
15696 if (rel_sec
== htab
->elf
.irelplt
)
15697 return reloc_class_ifunc
;
15699 r_type
= ELF64_R_TYPE (rela
->r_info
);
15702 case R_PPC64_RELATIVE
:
15703 return reloc_class_relative
;
15704 case R_PPC64_JMP_SLOT
:
15705 return reloc_class_plt
;
15707 return reloc_class_copy
;
15709 return reloc_class_normal
;
15713 /* Finish up the dynamic sections. */
15716 ppc64_elf_finish_dynamic_sections (bfd
*output_bfd
,
15717 struct bfd_link_info
*info
)
15719 struct ppc_link_hash_table
*htab
;
15723 htab
= ppc_hash_table (info
);
15727 dynobj
= htab
->elf
.dynobj
;
15728 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
15730 if (htab
->elf
.dynamic_sections_created
)
15732 Elf64_External_Dyn
*dyncon
, *dynconend
;
15734 if (sdyn
== NULL
|| htab
->elf
.sgot
== NULL
)
15737 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
15738 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
15739 for (; dyncon
< dynconend
; dyncon
++)
15741 Elf_Internal_Dyn dyn
;
15744 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
15751 case DT_PPC64_GLINK
:
15753 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
15754 /* We stupidly defined DT_PPC64_GLINK to be the start
15755 of glink rather than the first entry point, which is
15756 what ld.so needs, and now have a bigger stub to
15757 support automatic multiple TOCs. */
15758 dyn
.d_un
.d_ptr
+= GLINK_CALL_STUB_SIZE
- 8 * 4;
15762 s
= bfd_get_section_by_name (output_bfd
, ".opd");
15765 dyn
.d_un
.d_ptr
= s
->vma
;
15769 if (htab
->do_multi_toc
&& htab
->multi_toc_needed
)
15770 dyn
.d_un
.d_val
|= PPC64_OPT_MULTI_TOC
;
15771 if (htab
->has_plt_localentry0
)
15772 dyn
.d_un
.d_val
|= PPC64_OPT_LOCALENTRY
;
15775 case DT_PPC64_OPDSZ
:
15776 s
= bfd_get_section_by_name (output_bfd
, ".opd");
15779 dyn
.d_un
.d_val
= s
->size
;
15783 s
= htab
->elf
.splt
;
15784 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
15788 s
= htab
->elf
.srelplt
;
15789 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
15793 dyn
.d_un
.d_val
= htab
->elf
.srelplt
->size
;
15797 if (htab
->local_ifunc_resolver
)
15798 info
->callbacks
->einfo
15799 (_("%X%P: text relocations and GNU indirect "
15800 "functions will result in a segfault at runtime\n"));
15801 else if (htab
->maybe_local_ifunc_resolver
)
15802 info
->callbacks
->einfo
15803 (_("%P: warning: text relocations and GNU indirect "
15804 "functions may result in a segfault at runtime\n"));
15808 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
15812 if (htab
->elf
.sgot
!= NULL
&& htab
->elf
.sgot
->size
!= 0
15813 && htab
->elf
.sgot
->output_section
!= bfd_abs_section_ptr
)
15815 /* Fill in the first entry in the global offset table.
15816 We use it to hold the link-time TOCbase. */
15817 bfd_put_64 (output_bfd
,
15818 elf_gp (output_bfd
) + TOC_BASE_OFF
,
15819 htab
->elf
.sgot
->contents
);
15821 /* Set .got entry size. */
15822 elf_section_data (htab
->elf
.sgot
->output_section
)->this_hdr
.sh_entsize
= 8;
15825 if (htab
->elf
.splt
!= NULL
&& htab
->elf
.splt
->size
!= 0
15826 && htab
->elf
.splt
->output_section
!= bfd_abs_section_ptr
)
15828 /* Set .plt entry size. */
15829 elf_section_data (htab
->elf
.splt
->output_section
)->this_hdr
.sh_entsize
15830 = PLT_ENTRY_SIZE (htab
);
15833 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
15834 brlt ourselves if emitrelocations. */
15835 if (htab
->brlt
!= NULL
15836 && htab
->brlt
->reloc_count
!= 0
15837 && !_bfd_elf_link_output_relocs (output_bfd
,
15839 elf_section_data (htab
->brlt
)->rela
.hdr
,
15840 elf_section_data (htab
->brlt
)->relocs
,
15844 if (htab
->glink
!= NULL
15845 && htab
->glink
->reloc_count
!= 0
15846 && !_bfd_elf_link_output_relocs (output_bfd
,
15848 elf_section_data (htab
->glink
)->rela
.hdr
,
15849 elf_section_data (htab
->glink
)->relocs
,
15853 if (htab
->glink_eh_frame
!= NULL
15854 && htab
->glink_eh_frame
->size
!= 0)
15858 struct map_stub
*group
;
15861 p
= htab
->glink_eh_frame
->contents
;
15862 p
+= (sizeof (glink_eh_frame_cie
) + align
- 1) & -align
;
15864 for (group
= htab
->group
; group
!= NULL
; group
= group
->next
)
15865 if (group
->stub_sec
!= NULL
)
15867 /* Offset to stub section. */
15868 val
= (group
->stub_sec
->output_section
->vma
15869 + group
->stub_sec
->output_offset
);
15870 val
-= (htab
->glink_eh_frame
->output_section
->vma
15871 + htab
->glink_eh_frame
->output_offset
15872 + (p
+ 8 - htab
->glink_eh_frame
->contents
));
15873 if (val
+ 0x80000000 > 0xffffffff)
15875 info
->callbacks
->einfo
15876 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15877 group
->stub_sec
->name
);
15880 bfd_put_32 (dynobj
, val
, p
+ 8);
15881 p
+= stub_eh_frame_size (group
, align
);
15883 if (htab
->glink
!= NULL
&& htab
->glink
->size
!= 0)
15885 /* Offset to .glink. */
15886 val
= (htab
->glink
->output_section
->vma
15887 + htab
->glink
->output_offset
15889 val
-= (htab
->glink_eh_frame
->output_section
->vma
15890 + htab
->glink_eh_frame
->output_offset
15891 + (p
+ 8 - htab
->glink_eh_frame
->contents
));
15892 if (val
+ 0x80000000 > 0xffffffff)
15894 info
->callbacks
->einfo
15895 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15896 htab
->glink
->name
);
15899 bfd_put_32 (dynobj
, val
, p
+ 8);
15900 p
+= (24 + align
- 1) & -align
;
15903 if (htab
->glink_eh_frame
->sec_info_type
== SEC_INFO_TYPE_EH_FRAME
15904 && !_bfd_elf_write_section_eh_frame (output_bfd
, info
,
15905 htab
->glink_eh_frame
,
15906 htab
->glink_eh_frame
->contents
))
15910 /* We need to handle writing out multiple GOT sections ourselves,
15911 since we didn't add them to DYNOBJ. We know dynobj is the first
15913 while ((dynobj
= dynobj
->link
.next
) != NULL
)
15917 if (!is_ppc64_elf (dynobj
))
15920 s
= ppc64_elf_tdata (dynobj
)->got
;
15923 && s
->output_section
!= bfd_abs_section_ptr
15924 && !bfd_set_section_contents (output_bfd
, s
->output_section
,
15925 s
->contents
, s
->output_offset
,
15928 s
= ppc64_elf_tdata (dynobj
)->relgot
;
15931 && s
->output_section
!= bfd_abs_section_ptr
15932 && !bfd_set_section_contents (output_bfd
, s
->output_section
,
15933 s
->contents
, s
->output_offset
,
15941 #include "elf64-target.h"
15943 /* FreeBSD support */
15945 #undef TARGET_LITTLE_SYM
15946 #undef TARGET_LITTLE_NAME
15948 #undef TARGET_BIG_SYM
15949 #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec
15950 #undef TARGET_BIG_NAME
15951 #define TARGET_BIG_NAME "elf64-powerpc-freebsd"
15954 #define ELF_OSABI ELFOSABI_FREEBSD
15957 #define elf64_bed elf64_powerpc_fbsd_bed
15959 #include "elf64-target.h"