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[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
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5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
6f2750fe 2 Copyright (C) 1999-2016 Free Software Foundation, Inc.
5bd4f169
AM		 3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
32ca9640 5 Largely rewritten by Alan Modra.
5bd4f169 6
ae9a127f 7 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 8
ae9a127f
NC		 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
cd123cb7 11 the Free Software Foundation; either version 3 of the License, or
ae9a127f 12 (at your option) any later version.
5bd4f169 13
ae9a127f
NC		 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.
5bd4f169 18
4ce794b7
AM		 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.,
3e110533 21 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
5bd4f169 22
cd123cb7 23
4ce794b7
AM		 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 */
5bd4f169 27
3db64b00 28#include "sysdep.h"
183e98be 29#include <stdarg.h>
5bd4f169 30#include "bfd.h"
5bd4f169
AM		 31#include "bfdlink.h"
32#include "libbfd.h"
33#include "elf-bfd.h"
04c9666a 34#include "elf/ppc64.h"
5d1634d7 35#include "elf64-ppc.h"
58d180e8 36#include "dwarf2.h"
5bd4f169 37
805fc799 38static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016
AM		 40static bfd_reloc_status_type ppc64_elf_branch_reloc
41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 42static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 44static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 46static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 48static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 50static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 52static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 54static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 55 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016 56static bfd_vma opd_entry_value
aef36ac1 57 (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean);
5bd4f169 58
6d00b590 59#define TARGET_LITTLE_SYM powerpc_elf64_le_vec
ad8e1ba5 60#define TARGET_LITTLE_NAME "elf64-powerpcle"
6d00b590 61#define TARGET_BIG_SYM powerpc_elf64_vec
ad8e1ba5
AM		 62#define TARGET_BIG_NAME "elf64-powerpc"
63#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 64#define ELF_TARGET_ID PPC64_ELF_DATA
ad8e1ba5
AM		 65#define ELF_MACHINE_CODE EM_PPC64
66#define ELF_MAXPAGESIZE 0x10000
04c6a44c 67#define ELF_COMMONPAGESIZE 0x10000
ad8e1ba5
AM		 68#define elf_info_to_howto ppc64_elf_info_to_howto
69
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
ad8e1ba5 74#define elf_backend_got_header_size 8
ad8e1ba5
AM		 75#define elf_backend_can_gc_sections 1
76#define elf_backend_can_refcount 1
77#define elf_backend_rela_normal 1
64f52338 78#define elf_backend_dtrel_excludes_plt 1
6bfdb61b 79#define elf_backend_default_execstack 0
ad8e1ba5 80
e717da7e 81#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5 82#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
aa374f67 83#define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
ee67d69a
AM		 84#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
85#define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data
ad8e1ba5
AM		 86#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
87#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
90e3cdf2 88#define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
aa374f67 89#define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms
ad8e1ba5
AM		 90
91#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 92#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
93#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
183e98be 94#define elf_backend_write_core_note ppc64_elf_write_core_note
ad8e1ba5
AM		 95#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
96#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 97#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
f6c7c3e8 98#define elf_backend_check_directives ppc64_elf_before_check_relocs
e5034e59 99#define elf_backend_notice_as_needed ppc64_elf_notice_as_needed
8387904d 100#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
ad8e1ba5 101#define elf_backend_check_relocs ppc64_elf_check_relocs
74f0fb50 102#define elf_backend_gc_keep ppc64_elf_gc_keep
64d03ab5 103#define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
ad8e1ba5
AM		 104#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
105#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
106#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
107#define elf_backend_hide_symbol ppc64_elf_hide_symbol
9f296da3 108#define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym
ad8e1ba5
AM		 109#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
110#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
a345bc8d 111#define elf_backend_hash_symbol ppc64_elf_hash_symbol
74541ad4 112#define elf_backend_init_index_section _bfd_elf_init_2_index_sections
60124e18 113#define elf_backend_action_discarded ppc64_elf_action_discarded
ad8e1ba5
AM		 114#define elf_backend_relocate_section ppc64_elf_relocate_section
115#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
116#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
117#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 118#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
29ef7005 119#define elf_backend_special_sections ppc64_elf_special_sections
6911b7dc 120#define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute
ad8e1ba5 121
5bd4f169
AM		 122/* The name of the dynamic interpreter. This is put in the .interp
123 section. */
124#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
125
126/* The size in bytes of an entry in the procedure linkage table. */
b9e5796b 127#define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8)
5bd4f169
AM		 128
129/* The initial size of the plt reserved for the dynamic linker. */
b9e5796b 130#define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16)
5bd4f169 131
a078d95a
AM		 132/* Offsets to some stack save slots. */
133#define STK_LR 16
134#define STK_TOC(htab) (htab->opd_abi ? 40 : 24)
eb8d7fda 135/* This one is dodgy. ELFv2 does not have a linker word, so use the
a078d95a
AM		 136 CR save slot. Used only by optimised __tls_get_addr call stub,
137 relying on __tls_get_addr_opt not saving CR.. */
138#define STK_LINKER(htab) (htab->opd_abi ? 32 : 8)
139
5bd4f169 140/* TOC base pointers offset from start of TOC. */
411e1bfb 141#define TOC_BASE_OFF 0x8000
a27e685f
AM		 142/* TOC base alignment. */
143#define TOC_BASE_ALIGN 256
411e1bfb
AM		 144
145/* Offset of tp and dtp pointers from start of TLS block. */
146#define TP_OFFSET 0x7000
147#define DTP_OFFSET 0x8000
5bd4f169 148
ad8e1ba5
AM		 149/* .plt call stub instructions. The normal stub is like this, but
150 sometimes the .plt entry crosses a 64k boundary and we need to
71a39c98 151 insert an addi to adjust r11. */
a078d95a 152#define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */
71a39c98
AM		 153#define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */
154#define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */
155#define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */
156#define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */
157#define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */
5d1634d7
AM		 158#define BCTR 0x4e800420 /* bctr */
159
71a39c98 160#define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */
ad8e1ba5
AM		 161#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
162#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
163
71a39c98
AM		 164#define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */
165#define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */
166#define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */
794e51c0
AM		 167#define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */
168#define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */
169#define BNECTR 0x4ca20420 /* bnectr+ */
170#define BNECTR_P4 0x4ce20420 /* bnectr+ */
171
71a39c98 172#define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */
ac2df442
AM		 173#define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
174#define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
175
a078d95a 176#define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */
006589cf
AM		 177#define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */
178#define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */
ad8e1ba5 179
006589cf
AM		 180#define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */
181#define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */
182#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
a345bc8d
AM		 183#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
184#define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */
185
ee4bf8d2 186/* glink call stub instructions. We enter with the index in R0. */
ad8e1ba5 187#define GLINK_CALL_STUB_SIZE (16*4)
ee4bf8d2
AM		 188 /* 0: */
189 /* .quad plt0-1f */
190 /* __glink: */
191#define MFLR_R12 0x7d8802a6 /* mflr %12 */
192#define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
193 /* 1: */
194#define MFLR_R11 0x7d6802a6 /* mflr %11 */
71a39c98 195 /* ld %2,(0b-1b)(%11) */
ee4bf8d2 196#define MTLR_R12 0x7d8803a6 /* mtlr %12 */
71a39c98
AM		 197#define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */
198 /* ld %12,0(%11) */
199 /* ld %2,8(%11) */
200 /* mtctr %12 */
201 /* ld %11,16(%11) */
ee4bf8d2 202 /* bctr */
b9e5796b
AM		 203#define MFLR_R0 0x7c0802a6 /* mflr %r0 */
204#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
205#define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */
206#define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */
207#define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */
5d1634d7
AM		 208
209/* Pad with this. */
210#define NOP 0x60000000
211
721956f4
AM		 212/* Some other nops. */
213#define CROR_151515 0x4def7b82
214#define CROR_313131 0x4ffffb82
215
cedb70c5 216/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 217#define LI_R0_0 0x38000000 /* li %r0,0 */
218#define B_DOT 0x48000000 /* b . */
219
220/* After that, we need two instructions to load the index, followed by
221 a branch. */
222#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 223#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 224
deb0e272
AM		 225/* Instructions used by the save and restore reg functions. */
226#define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
227#define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
228#define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
229#define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
82bd7b59
AM		 230#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
231#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
deb0e272
AM		 232#define LI_R12_0 0x39800000 /* li %r12,0 */
233#define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
234#define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
235#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
82bd7b59
AM		 236#define BLR 0x4e800020 /* blr */
237
41bd81ab
AM		 238/* Since .opd is an array of descriptors and each entry will end up
239 with identical R_PPC64_RELATIVE relocs, there is really no need to
240 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 241 relocate .opd without reloc entries. */
41bd81ab
AM		 242#ifndef NO_OPD_RELOCS
243#define NO_OPD_RELOCS 0
244#endif
810d4e75 245
a4b6fadd
AM		 246#ifndef ARRAY_SIZE
247#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
248#endif
249
810d4e75
AM		 250static inline int
251abiversion (bfd *abfd)
252{
253 return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI;
254}
255
256static inline void
257set_abiversion (bfd *abfd, int ver)
258{
259 elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI;
260 elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI;
261}
5bd4f169 262\f
f5e87a1d 263#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 264
5bd4f169 265/* Relocation HOWTO's. */
04c9666a 266static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 267
268static reloc_howto_type ppc64_elf_howto_raw[] = {
269 /* This reloc does nothing. */
270 HOWTO (R_PPC64_NONE, /* type */
271 0, /* rightshift */
6346d5ca
AM		 272 3, /* size (0 = byte, 1 = short, 2 = long) */
273 0, /* bitsize */
b34976b6 274 FALSE, /* pc_relative */
5bd4f169 275 0, /* bitpos */
f5e87a1d 276 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 277 bfd_elf_generic_reloc, /* special_function */
278 "R_PPC64_NONE", /* name */
b34976b6 279 FALSE, /* partial_inplace */
d006db6c 280 0, /* src_mask */
5bd4f169 281 0, /* dst_mask */
b34976b6 282 FALSE), /* pcrel_offset */
5bd4f169
AM		 283
284 /* A standard 32 bit relocation. */
285 HOWTO (R_PPC64_ADDR32, /* type */
286 0, /* rightshift */
287 2, /* size (0 = byte, 1 = short, 2 = long) */
288 32, /* bitsize */
b34976b6 289 FALSE, /* pc_relative */
5bd4f169
AM		 290 0, /* bitpos */
291 complain_overflow_bitfield, /* complain_on_overflow */
292 bfd_elf_generic_reloc, /* special_function */
293 "R_PPC64_ADDR32", /* name */
b34976b6 294 FALSE, /* partial_inplace */
5bd4f169
AM		 295 0, /* src_mask */
296 0xffffffff, /* dst_mask */
b34976b6 297 FALSE), /* pcrel_offset */
5bd4f169
AM		 298
299 /* An absolute 26 bit branch; the lower two bits must be zero.
300 FIXME: we don't check that, we just clear them. */
301 HOWTO (R_PPC64_ADDR24, /* type */
302 0, /* rightshift */
303 2, /* size (0 = byte, 1 = short, 2 = long) */
304 26, /* bitsize */
b34976b6 305 FALSE, /* pc_relative */
5bd4f169
AM		 306 0, /* bitpos */
307 complain_overflow_bitfield, /* complain_on_overflow */
308 bfd_elf_generic_reloc, /* special_function */
309 "R_PPC64_ADDR24", /* name */
b34976b6 310 FALSE, /* partial_inplace */
d006db6c 311 0, /* src_mask */
f5e87a1d 312 0x03fffffc, /* dst_mask */
b34976b6 313 FALSE), /* pcrel_offset */
5bd4f169
AM		 314
315 /* A standard 16 bit relocation. */
316 HOWTO (R_PPC64_ADDR16, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
b34976b6 320 FALSE, /* pc_relative */
5bd4f169
AM		 321 0, /* bitpos */
322 complain_overflow_bitfield, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_PPC64_ADDR16", /* name */
b34976b6 325 FALSE, /* partial_inplace */
5bd4f169
AM		 326 0, /* src_mask */
327 0xffff, /* dst_mask */
b34976b6 328 FALSE), /* pcrel_offset */
5bd4f169
AM		 329
330 /* A 16 bit relocation without overflow. */
331 HOWTO (R_PPC64_ADDR16_LO, /* type */
332 0, /* rightshift */
333 1, /* size (0 = byte, 1 = short, 2 = long) */
334 16, /* bitsize */
b34976b6 335 FALSE, /* pc_relative */
5bd4f169
AM		 336 0, /* bitpos */
337 complain_overflow_dont,/* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_PPC64_ADDR16_LO", /* name */
b34976b6 340 FALSE, /* partial_inplace */
5bd4f169
AM		 341 0, /* src_mask */
342 0xffff, /* dst_mask */
b34976b6 343 FALSE), /* pcrel_offset */
5bd4f169
AM		 344
345 /* Bits 16-31 of an address. */
346 HOWTO (R_PPC64_ADDR16_HI, /* type */
347 16, /* rightshift */
348 1, /* size (0 = byte, 1 = short, 2 = long) */
349 16, /* bitsize */
b34976b6 350 FALSE, /* pc_relative */
5bd4f169 351 0, /* bitpos */
f9c6b907 352 complain_overflow_signed, /* complain_on_overflow */
5bd4f169
AM		 353 bfd_elf_generic_reloc, /* special_function */
354 "R_PPC64_ADDR16_HI", /* name */
b34976b6 355 FALSE, /* partial_inplace */
5bd4f169
AM		 356 0, /* src_mask */
357 0xffff, /* dst_mask */
b34976b6 358 FALSE), /* pcrel_offset */
5bd4f169
AM		 359
360 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
361 bits, treated as a signed number, is negative. */
362 HOWTO (R_PPC64_ADDR16_HA, /* type */
363 16, /* rightshift */
364 1, /* size (0 = byte, 1 = short, 2 = long) */
365 16, /* bitsize */
b34976b6 366 FALSE, /* pc_relative */
5bd4f169 367 0, /* bitpos */
f9c6b907 368 complain_overflow_signed, /* complain_on_overflow */
805fc799 369 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 370 "R_PPC64_ADDR16_HA", /* name */
b34976b6 371 FALSE, /* partial_inplace */
5bd4f169
AM		 372 0, /* src_mask */
373 0xffff, /* dst_mask */
b34976b6 374 FALSE), /* pcrel_offset */
5bd4f169
AM		 375
376 /* An absolute 16 bit branch; the lower two bits must be zero.
377 FIXME: we don't check that, we just clear them. */
378 HOWTO (R_PPC64_ADDR14, /* type */
379 0, /* rightshift */
380 2, /* size (0 = byte, 1 = short, 2 = long) */
381 16, /* bitsize */
b34976b6 382 FALSE, /* pc_relative */
5bd4f169 383 0, /* bitpos */
b80eed39 384 complain_overflow_signed, /* complain_on_overflow */
2441e016 385 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 386 "R_PPC64_ADDR14", /* name */
b34976b6 387 FALSE, /* partial_inplace */
d006db6c 388 0, /* src_mask */
f5e87a1d 389 0x0000fffc, /* dst_mask */
b34976b6 390 FALSE), /* pcrel_offset */
5bd4f169
AM		 391
392 /* An absolute 16 bit branch, for which bit 10 should be set to
393 indicate that the branch is expected to be taken. The lower two
394 bits must be zero. */
395 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
396 0, /* rightshift */
397 2, /* size (0 = byte, 1 = short, 2 = long) */
398 16, /* bitsize */
b34976b6 399 FALSE, /* pc_relative */
5bd4f169 400 0, /* bitpos */
b80eed39 401 complain_overflow_signed, /* complain_on_overflow */
805fc799 402 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 403 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 404 FALSE, /* partial_inplace */
d006db6c 405 0, /* src_mask */
f5e87a1d 406 0x0000fffc, /* dst_mask */
b34976b6 407 FALSE), /* pcrel_offset */
5bd4f169
AM		 408
409 /* An absolute 16 bit branch, for which bit 10 should be set to
410 indicate that the branch is not expected to be taken. The lower
411 two bits must be zero. */
412 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
413 0, /* rightshift */
414 2, /* size (0 = byte, 1 = short, 2 = long) */
415 16, /* bitsize */
b34976b6 416 FALSE, /* pc_relative */
5bd4f169 417 0, /* bitpos */
b80eed39 418 complain_overflow_signed, /* complain_on_overflow */
805fc799 419 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 420 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 421 FALSE, /* partial_inplace */
d006db6c 422 0, /* src_mask */
f5e87a1d 423 0x0000fffc, /* dst_mask */
b34976b6 424 FALSE), /* pcrel_offset */
5bd4f169
AM		 425
426 /* A relative 26 bit branch; the lower two bits must be zero. */
427 HOWTO (R_PPC64_REL24, /* type */
428 0, /* rightshift */
429 2, /* size (0 = byte, 1 = short, 2 = long) */
430 26, /* bitsize */
b34976b6 431 TRUE, /* pc_relative */
5bd4f169
AM		 432 0, /* bitpos */
433 complain_overflow_signed, /* complain_on_overflow */
2441e016 434 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 435 "R_PPC64_REL24", /* name */
b34976b6 436 FALSE, /* partial_inplace */
d006db6c 437 0, /* src_mask */
f5e87a1d 438 0x03fffffc, /* dst_mask */
b34976b6 439 TRUE), /* pcrel_offset */
5bd4f169
AM		 440
441 /* A relative 16 bit branch; the lower two bits must be zero. */
442 HOWTO (R_PPC64_REL14, /* type */
443 0, /* rightshift */
444 2, /* size (0 = byte, 1 = short, 2 = long) */
445 16, /* bitsize */
b34976b6 446 TRUE, /* pc_relative */
5bd4f169
AM		 447 0, /* bitpos */
448 complain_overflow_signed, /* complain_on_overflow */
2441e016 449 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 450 "R_PPC64_REL14", /* name */
b34976b6 451 FALSE, /* partial_inplace */
d006db6c 452 0, /* src_mask */
f5e87a1d 453 0x0000fffc, /* dst_mask */
b34976b6 454 TRUE), /* pcrel_offset */
5bd4f169
AM		 455
456 /* A relative 16 bit branch. Bit 10 should be set to indicate that
457 the branch is expected to be taken. The lower two bits must be
458 zero. */
459 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
460 0, /* rightshift */
461 2, /* size (0 = byte, 1 = short, 2 = long) */
462 16, /* bitsize */
b34976b6 463 TRUE, /* pc_relative */
5bd4f169
AM		 464 0, /* bitpos */
465 complain_overflow_signed, /* complain_on_overflow */
805fc799 466 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 467 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 468 FALSE, /* partial_inplace */
d006db6c 469 0, /* src_mask */
f5e87a1d 470 0x0000fffc, /* dst_mask */
b34976b6 471 TRUE), /* pcrel_offset */
5bd4f169
AM		 472
473 /* A relative 16 bit branch. Bit 10 should be set to indicate that
474 the branch is not expected to be taken. The lower two bits must
475 be zero. */
476 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
477 0, /* rightshift */
478 2, /* size (0 = byte, 1 = short, 2 = long) */
479 16, /* bitsize */
b34976b6 480 TRUE, /* pc_relative */
5bd4f169
AM		 481 0, /* bitpos */
482 complain_overflow_signed, /* complain_on_overflow */
805fc799 483 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 484 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 485 FALSE, /* partial_inplace */
d006db6c 486 0, /* src_mask */
f5e87a1d 487 0x0000fffc, /* dst_mask */
b34976b6 488 TRUE), /* pcrel_offset */
5bd4f169
AM		 489
490 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
491 symbol. */
492 HOWTO (R_PPC64_GOT16, /* type */
493 0, /* rightshift */
494 1, /* size (0 = byte, 1 = short, 2 = long) */
495 16, /* bitsize */
b34976b6 496 FALSE, /* pc_relative */
5bd4f169
AM		 497 0, /* bitpos */
498 complain_overflow_signed, /* complain_on_overflow */
805fc799 499 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 500 "R_PPC64_GOT16", /* name */
b34976b6 501 FALSE, /* partial_inplace */
5bd4f169
AM		 502 0, /* src_mask */
503 0xffff, /* dst_mask */
b34976b6 504 FALSE), /* pcrel_offset */
5bd4f169
AM		 505
506 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
507 the symbol. */
508 HOWTO (R_PPC64_GOT16_LO, /* type */
509 0, /* rightshift */
510 1, /* size (0 = byte, 1 = short, 2 = long) */
511 16, /* bitsize */
b34976b6 512 FALSE, /* pc_relative */
5bd4f169
AM		 513 0, /* bitpos */
514 complain_overflow_dont, /* complain_on_overflow */
805fc799 515 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 516 "R_PPC64_GOT16_LO", /* name */
b34976b6 517 FALSE, /* partial_inplace */
5bd4f169
AM		 518 0, /* src_mask */
519 0xffff, /* dst_mask */
b34976b6 520 FALSE), /* pcrel_offset */
5bd4f169
AM		 521
522 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
523 the symbol. */
524 HOWTO (R_PPC64_GOT16_HI, /* type */
525 16, /* rightshift */
526 1, /* size (0 = byte, 1 = short, 2 = long) */
527 16, /* bitsize */
b34976b6 528 FALSE, /* pc_relative */
5bd4f169 529 0, /* bitpos */
f9c6b907 530 complain_overflow_signed,/* complain_on_overflow */
805fc799 531 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 532 "R_PPC64_GOT16_HI", /* name */
b34976b6 533 FALSE, /* partial_inplace */
5bd4f169
AM		 534 0, /* src_mask */
535 0xffff, /* dst_mask */
b34976b6 536 FALSE), /* pcrel_offset */
5bd4f169
AM		 537
538 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
539 the symbol. */
540 HOWTO (R_PPC64_GOT16_HA, /* type */
541 16, /* rightshift */
542 1, /* size (0 = byte, 1 = short, 2 = long) */
543 16, /* bitsize */
b34976b6 544 FALSE, /* pc_relative */
5bd4f169 545 0, /* bitpos */
f9c6b907 546 complain_overflow_signed,/* complain_on_overflow */
805fc799 547 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 548 "R_PPC64_GOT16_HA", /* name */
b34976b6 549 FALSE, /* partial_inplace */
5bd4f169
AM		 550 0, /* src_mask */
551 0xffff, /* dst_mask */
b34976b6 552 FALSE), /* pcrel_offset */
5bd4f169
AM		 553
554 /* This is used only by the dynamic linker. The symbol should exist
555 both in the object being run and in some shared library. The
556 dynamic linker copies the data addressed by the symbol from the
557 shared library into the object, because the object being
558 run has to have the data at some particular address. */
559 HOWTO (R_PPC64_COPY, /* type */
560 0, /* rightshift */
f5e87a1d
AM		 561 0, /* this one is variable size */
562 0, /* bitsize */
b34976b6 563 FALSE, /* pc_relative */
5bd4f169 564 0, /* bitpos */
f5e87a1d
AM		 565 complain_overflow_dont, /* complain_on_overflow */
566 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 567 "R_PPC64_COPY", /* name */
b34976b6 568 FALSE, /* partial_inplace */
5bd4f169
AM		 569 0, /* src_mask */
570 0, /* dst_mask */
b34976b6 571 FALSE), /* pcrel_offset */
5bd4f169
AM		 572
573 /* Like R_PPC64_ADDR64, but used when setting global offset table
574 entries. */
575 HOWTO (R_PPC64_GLOB_DAT, /* type */
576 0, /* rightshift */
577 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
578 64, /* bitsize */
b34976b6 579 FALSE, /* pc_relative */
5bd4f169
AM		 580 0, /* bitpos */
581 complain_overflow_dont, /* complain_on_overflow */
805fc799 582 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 583 "R_PPC64_GLOB_DAT", /* name */
b34976b6 584 FALSE, /* partial_inplace */
5bd4f169 585 0, /* src_mask */
f5e87a1d 586 ONES (64), /* dst_mask */
b34976b6 587 FALSE), /* pcrel_offset */
5bd4f169
AM		 588
589 /* Created by the link editor. Marks a procedure linkage table
590 entry for a symbol. */
591 HOWTO (R_PPC64_JMP_SLOT, /* type */
592 0, /* rightshift */
593 0, /* size (0 = byte, 1 = short, 2 = long) */
594 0, /* bitsize */
b34976b6 595 FALSE, /* pc_relative */
5bd4f169
AM		 596 0, /* bitpos */
597 complain_overflow_dont, /* complain_on_overflow */
805fc799 598 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 599 "R_PPC64_JMP_SLOT", /* name */
b34976b6 600 FALSE, /* partial_inplace */
5bd4f169
AM		 601 0, /* src_mask */
602 0, /* dst_mask */
b34976b6 603 FALSE), /* pcrel_offset */
5bd4f169
AM		 604
605 /* Used only by the dynamic linker. When the object is run, this
606 doubleword64 is set to the load address of the object, plus the
607 addend. */
608 HOWTO (R_PPC64_RELATIVE, /* type */
609 0, /* rightshift */
610 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
611 64, /* bitsize */
b34976b6 612 FALSE, /* pc_relative */
5bd4f169
AM		 613 0, /* bitpos */
614 complain_overflow_dont, /* complain_on_overflow */
615 bfd_elf_generic_reloc, /* special_function */
616 "R_PPC64_RELATIVE", /* name */
b34976b6 617 FALSE, /* partial_inplace */
5bd4f169 618 0, /* src_mask */
f5e87a1d 619 ONES (64), /* dst_mask */
b34976b6 620 FALSE), /* pcrel_offset */
5bd4f169
AM		 621
622 /* Like R_PPC64_ADDR32, but may be unaligned. */
623 HOWTO (R_PPC64_UADDR32, /* type */
624 0, /* rightshift */
625 2, /* size (0 = byte, 1 = short, 2 = long) */
626 32, /* bitsize */
b34976b6 627 FALSE, /* pc_relative */
5bd4f169
AM		 628 0, /* bitpos */
629 complain_overflow_bitfield, /* complain_on_overflow */
630 bfd_elf_generic_reloc, /* special_function */
631 "R_PPC64_UADDR32", /* name */
b34976b6 632 FALSE, /* partial_inplace */
5bd4f169
AM		 633 0, /* src_mask */
634 0xffffffff, /* dst_mask */
b34976b6 635 FALSE), /* pcrel_offset */
5bd4f169
AM		 636
637 /* Like R_PPC64_ADDR16, but may be unaligned. */
638 HOWTO (R_PPC64_UADDR16, /* type */
639 0, /* rightshift */
640 1, /* size (0 = byte, 1 = short, 2 = long) */
641 16, /* bitsize */
b34976b6 642 FALSE, /* pc_relative */
5bd4f169
AM		 643 0, /* bitpos */
644 complain_overflow_bitfield, /* complain_on_overflow */
645 bfd_elf_generic_reloc, /* special_function */
646 "R_PPC64_UADDR16", /* name */
b34976b6 647 FALSE, /* partial_inplace */
5bd4f169
AM		 648 0, /* src_mask */
649 0xffff, /* dst_mask */
b34976b6 650 FALSE), /* pcrel_offset */
5bd4f169
AM		 651
652 /* 32-bit PC relative. */
653 HOWTO (R_PPC64_REL32, /* type */
654 0, /* rightshift */
655 2, /* size (0 = byte, 1 = short, 2 = long) */
656 32, /* bitsize */
b34976b6 657 TRUE, /* pc_relative */
5bd4f169 658 0, /* bitpos */
5bd4f169
AM		 659 complain_overflow_signed, /* complain_on_overflow */
660 bfd_elf_generic_reloc, /* special_function */
661 "R_PPC64_REL32", /* name */
b34976b6 662 FALSE, /* partial_inplace */
5bd4f169
AM		 663 0, /* src_mask */
664 0xffffffff, /* dst_mask */
b34976b6 665 TRUE), /* pcrel_offset */
5bd4f169 666
10ed1bba 667 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 668 HOWTO (R_PPC64_PLT32, /* type */
669 0, /* rightshift */
670 2, /* size (0 = byte, 1 = short, 2 = long) */
671 32, /* bitsize */
b34976b6 672 FALSE, /* pc_relative */
5bd4f169
AM		 673 0, /* bitpos */
674 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 675 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 676 "R_PPC64_PLT32", /* name */
b34976b6 677 FALSE, /* partial_inplace */
5bd4f169 678 0, /* src_mask */
f5e87a1d 679 0xffffffff, /* dst_mask */
b34976b6 680 FALSE), /* pcrel_offset */
5bd4f169
AM		 681
682 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
683 FIXME: R_PPC64_PLTREL32 not supported. */
684 HOWTO (R_PPC64_PLTREL32, /* type */
685 0, /* rightshift */
686 2, /* size (0 = byte, 1 = short, 2 = long) */
687 32, /* bitsize */
b34976b6 688 TRUE, /* pc_relative */
5bd4f169
AM		 689 0, /* bitpos */
690 complain_overflow_signed, /* complain_on_overflow */
3ce51288 691 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 692 "R_PPC64_PLTREL32", /* name */
b34976b6 693 FALSE, /* partial_inplace */
5bd4f169 694 0, /* src_mask */
f5e87a1d 695 0xffffffff, /* dst_mask */
b34976b6 696 TRUE), /* pcrel_offset */
5bd4f169
AM		 697
698 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
699 the symbol. */
700 HOWTO (R_PPC64_PLT16_LO, /* type */
701 0, /* rightshift */
702 1, /* size (0 = byte, 1 = short, 2 = long) */
703 16, /* bitsize */
b34976b6 704 FALSE, /* pc_relative */
5bd4f169
AM		 705 0, /* bitpos */
706 complain_overflow_dont, /* complain_on_overflow */
805fc799 707 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 708 "R_PPC64_PLT16_LO", /* name */
b34976b6 709 FALSE, /* partial_inplace */
5bd4f169
AM		 710 0, /* src_mask */
711 0xffff, /* dst_mask */
b34976b6 712 FALSE), /* pcrel_offset */
5bd4f169
AM		 713
714 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
715 the symbol. */
716 HOWTO (R_PPC64_PLT16_HI, /* type */
717 16, /* rightshift */
718 1, /* size (0 = byte, 1 = short, 2 = long) */
719 16, /* bitsize */
b34976b6 720 FALSE, /* pc_relative */
5bd4f169 721 0, /* bitpos */
f9c6b907 722 complain_overflow_signed, /* complain_on_overflow */
805fc799 723 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 724 "R_PPC64_PLT16_HI", /* name */
b34976b6 725 FALSE, /* partial_inplace */
5bd4f169
AM		 726 0, /* src_mask */
727 0xffff, /* dst_mask */
b34976b6 728 FALSE), /* pcrel_offset */
5bd4f169
AM		 729
730 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
731 the symbol. */
732 HOWTO (R_PPC64_PLT16_HA, /* type */
733 16, /* rightshift */
734 1, /* size (0 = byte, 1 = short, 2 = long) */
735 16, /* bitsize */
b34976b6 736 FALSE, /* pc_relative */
5bd4f169 737 0, /* bitpos */
f9c6b907 738 complain_overflow_signed, /* complain_on_overflow */
805fc799 739 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 740 "R_PPC64_PLT16_HA", /* name */
b34976b6 741 FALSE, /* partial_inplace */
5bd4f169
AM		 742 0, /* src_mask */
743 0xffff, /* dst_mask */
b34976b6 744 FALSE), /* pcrel_offset */
5bd4f169 745
c061c2d8 746 /* 16-bit section relative relocation. */
5bd4f169
AM		 747 HOWTO (R_PPC64_SECTOFF, /* type */
748 0, /* rightshift */
c061c2d8
AM		 749 1, /* size (0 = byte, 1 = short, 2 = long) */
750 16, /* bitsize */
b34976b6 751 FALSE, /* pc_relative */
5bd4f169 752 0, /* bitpos */
b80eed39 753 complain_overflow_signed, /* complain_on_overflow */
805fc799 754 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 755 "R_PPC64_SECTOFF", /* name */
b34976b6 756 FALSE, /* partial_inplace */
5bd4f169 757 0, /* src_mask */
c061c2d8 758 0xffff, /* dst_mask */
b34976b6 759 FALSE), /* pcrel_offset */
5bd4f169 760
c061c2d8 761 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 762 HOWTO (R_PPC64_SECTOFF_LO, /* type */
763 0, /* rightshift */
764 1, /* size (0 = byte, 1 = short, 2 = long) */
765 16, /* bitsize */
b34976b6 766 FALSE, /* pc_relative */
5bd4f169
AM		 767 0, /* bitpos */
768 complain_overflow_dont, /* complain_on_overflow */
805fc799 769 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 770 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 771 FALSE, /* partial_inplace */
5bd4f169
AM		 772 0, /* src_mask */
773 0xffff, /* dst_mask */
b34976b6 774 FALSE), /* pcrel_offset */
5bd4f169
AM		 775
776 /* 16-bit upper half section relative relocation. */
777 HOWTO (R_PPC64_SECTOFF_HI, /* type */
778 16, /* rightshift */
779 1, /* size (0 = byte, 1 = short, 2 = long) */
780 16, /* bitsize */
b34976b6 781 FALSE, /* pc_relative */
5bd4f169 782 0, /* bitpos */
f9c6b907 783 complain_overflow_signed, /* complain_on_overflow */
805fc799 784 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 785 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 786 FALSE, /* partial_inplace */
5bd4f169
AM		 787 0, /* src_mask */
788 0xffff, /* dst_mask */
b34976b6 789 FALSE), /* pcrel_offset */
5bd4f169
AM		 790
791 /* 16-bit upper half adjusted section relative relocation. */
792 HOWTO (R_PPC64_SECTOFF_HA, /* type */
793 16, /* rightshift */
794 1, /* size (0 = byte, 1 = short, 2 = long) */
795 16, /* bitsize */
b34976b6 796 FALSE, /* pc_relative */
5bd4f169 797 0, /* bitpos */
f9c6b907 798 complain_overflow_signed, /* complain_on_overflow */
805fc799 799 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 800 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 801 FALSE, /* partial_inplace */
5bd4f169
AM		 802 0, /* src_mask */
803 0xffff, /* dst_mask */
b34976b6 804 FALSE), /* pcrel_offset */
5bd4f169 805
04c9666a
AM		 806 /* Like R_PPC64_REL24 without touching the two least significant bits. */
807 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 808 2, /* rightshift */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
810 30, /* bitsize */
b34976b6 811 TRUE, /* pc_relative */
5bd4f169
AM		 812 0, /* bitpos */
813 complain_overflow_dont, /* complain_on_overflow */
814 bfd_elf_generic_reloc, /* special_function */
04c9666a 815 "R_PPC64_REL30", /* name */
b34976b6 816 FALSE, /* partial_inplace */
d006db6c 817 0, /* src_mask */
5bd4f169 818 0xfffffffc, /* dst_mask */
b34976b6 819 TRUE), /* pcrel_offset */
5bd4f169
AM		 820
821 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
822
823 /* A standard 64-bit relocation. */
824 HOWTO (R_PPC64_ADDR64, /* type */
825 0, /* rightshift */
826 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
827 64, /* bitsize */
b34976b6 828 FALSE, /* pc_relative */
5bd4f169
AM		 829 0, /* bitpos */
830 complain_overflow_dont, /* complain_on_overflow */
831 bfd_elf_generic_reloc, /* special_function */
832 "R_PPC64_ADDR64", /* name */
b34976b6 833 FALSE, /* partial_inplace */
5bd4f169 834 0, /* src_mask */
f5e87a1d 835 ONES (64), /* dst_mask */
b34976b6 836 FALSE), /* pcrel_offset */
5bd4f169
AM		 837
838 /* The bits 32-47 of an address. */
839 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
840 32, /* rightshift */
841 1, /* size (0 = byte, 1 = short, 2 = long) */
842 16, /* bitsize */
b34976b6 843 FALSE, /* pc_relative */
5bd4f169
AM		 844 0, /* bitpos */
845 complain_overflow_dont, /* complain_on_overflow */
846 bfd_elf_generic_reloc, /* special_function */
847 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 848 FALSE, /* partial_inplace */
5bd4f169
AM		 849 0, /* src_mask */
850 0xffff, /* dst_mask */
b34976b6 851 FALSE), /* pcrel_offset */
5bd4f169
AM		 852
853 /* The bits 32-47 of an address, plus 1 if the contents of the low
854 16 bits, treated as a signed number, is negative. */
855 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
856 32, /* rightshift */
857 1, /* size (0 = byte, 1 = short, 2 = long) */
858 16, /* bitsize */
b34976b6 859 FALSE, /* pc_relative */
5bd4f169
AM		 860 0, /* bitpos */
861 complain_overflow_dont, /* complain_on_overflow */
805fc799 862 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 863 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 864 FALSE, /* partial_inplace */
5bd4f169
AM		 865 0, /* src_mask */
866 0xffff, /* dst_mask */
b34976b6 867 FALSE), /* pcrel_offset */
5bd4f169
AM		 868
869 /* The bits 48-63 of an address. */
870 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
871 48, /* rightshift */
872 1, /* size (0 = byte, 1 = short, 2 = long) */
873 16, /* bitsize */
b34976b6 874 FALSE, /* pc_relative */
5bd4f169
AM		 875 0, /* bitpos */
876 complain_overflow_dont, /* complain_on_overflow */
877 bfd_elf_generic_reloc, /* special_function */
878 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 879 FALSE, /* partial_inplace */
5bd4f169
AM		 880 0, /* src_mask */
881 0xffff, /* dst_mask */
b34976b6 882 FALSE), /* pcrel_offset */
5bd4f169
AM		 883
884 /* The bits 48-63 of an address, plus 1 if the contents of the low
885 16 bits, treated as a signed number, is negative. */
886 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
887 48, /* rightshift */
888 1, /* size (0 = byte, 1 = short, 2 = long) */
889 16, /* bitsize */
b34976b6 890 FALSE, /* pc_relative */
5bd4f169
AM		 891 0, /* bitpos */
892 complain_overflow_dont, /* complain_on_overflow */
805fc799 893 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 894 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 895 FALSE, /* partial_inplace */
5bd4f169
AM		 896 0, /* src_mask */
897 0xffff, /* dst_mask */
b34976b6 898 FALSE), /* pcrel_offset */
5bd4f169
AM		 899
900 /* Like ADDR64, but may be unaligned. */
901 HOWTO (R_PPC64_UADDR64, /* type */
902 0, /* rightshift */
903 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
904 64, /* bitsize */
b34976b6 905 FALSE, /* pc_relative */
5bd4f169
AM		 906 0, /* bitpos */
907 complain_overflow_dont, /* complain_on_overflow */
908 bfd_elf_generic_reloc, /* special_function */
909 "R_PPC64_UADDR64", /* name */
b34976b6 910 FALSE, /* partial_inplace */
5bd4f169 911 0, /* src_mask */
f5e87a1d 912 ONES (64), /* dst_mask */
b34976b6 913 FALSE), /* pcrel_offset */
5bd4f169
AM		 914
915 /* 64-bit relative relocation. */
916 HOWTO (R_PPC64_REL64, /* type */
917 0, /* rightshift */
918 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
919 64, /* bitsize */
b34976b6 920 TRUE, /* pc_relative */
5bd4f169
AM		 921 0, /* bitpos */
922 complain_overflow_dont, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_PPC64_REL64", /* name */
b34976b6 925 FALSE, /* partial_inplace */
5bd4f169 926 0, /* src_mask */
f5e87a1d 927 ONES (64), /* dst_mask */
b34976b6 928 TRUE), /* pcrel_offset */
5bd4f169 929
cedb70c5 930 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 931 HOWTO (R_PPC64_PLT64, /* type */
932 0, /* rightshift */
933 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
934 64, /* bitsize */
b34976b6 935 FALSE, /* pc_relative */
5bd4f169
AM		 936 0, /* bitpos */
937 complain_overflow_dont, /* complain_on_overflow */
805fc799 938 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 939 "R_PPC64_PLT64", /* name */
b34976b6 940 FALSE, /* partial_inplace */
5bd4f169 941 0, /* src_mask */
f5e87a1d 942 ONES (64), /* dst_mask */
b34976b6 943 FALSE), /* pcrel_offset */
5bd4f169
AM		 944
945 /* 64-bit PC relative relocation to the symbol's procedure linkage
946 table. */
947 /* FIXME: R_PPC64_PLTREL64 not supported. */
948 HOWTO (R_PPC64_PLTREL64, /* type */
949 0, /* rightshift */
950 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
951 64, /* bitsize */
b34976b6 952 TRUE, /* pc_relative */
5bd4f169
AM		 953 0, /* bitpos */
954 complain_overflow_dont, /* complain_on_overflow */
805fc799 955 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 956 "R_PPC64_PLTREL64", /* name */
b34976b6 957 FALSE, /* partial_inplace */
5bd4f169 958 0, /* src_mask */
f5e87a1d 959 ONES (64), /* dst_mask */
b34976b6 960 TRUE), /* pcrel_offset */
5bd4f169
AM		 961
962 /* 16 bit TOC-relative relocation. */
963
964 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
965 HOWTO (R_PPC64_TOC16, /* type */
966 0, /* rightshift */
967 1, /* size (0 = byte, 1 = short, 2 = long) */
968 16, /* bitsize */
b34976b6 969 FALSE, /* pc_relative */
5bd4f169
AM		 970 0, /* bitpos */
971 complain_overflow_signed, /* complain_on_overflow */
805fc799 972 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 973 "R_PPC64_TOC16", /* name */
b34976b6 974 FALSE, /* partial_inplace */
5bd4f169
AM		 975 0, /* src_mask */
976 0xffff, /* dst_mask */
b34976b6 977 FALSE), /* pcrel_offset */
5bd4f169
AM		 978
979 /* 16 bit TOC-relative relocation without overflow. */
980
981 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
982 HOWTO (R_PPC64_TOC16_LO, /* type */
983 0, /* rightshift */
984 1, /* size (0 = byte, 1 = short, 2 = long) */
985 16, /* bitsize */
b34976b6 986 FALSE, /* pc_relative */
5bd4f169
AM		 987 0, /* bitpos */
988 complain_overflow_dont, /* complain_on_overflow */
805fc799 989 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 990 "R_PPC64_TOC16_LO", /* name */
b34976b6 991 FALSE, /* partial_inplace */
5bd4f169
AM		 992 0, /* src_mask */
993 0xffff, /* dst_mask */
b34976b6 994 FALSE), /* pcrel_offset */
5bd4f169
AM		 995
996 /* 16 bit TOC-relative relocation, high 16 bits. */
997
998 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
999 HOWTO (R_PPC64_TOC16_HI, /* type */
1000 16, /* rightshift */
1001 1, /* size (0 = byte, 1 = short, 2 = long) */
1002 16, /* bitsize */
b34976b6 1003 FALSE, /* pc_relative */
5bd4f169 1004 0, /* bitpos */
f9c6b907 1005 complain_overflow_signed, /* complain_on_overflow */
805fc799 1006 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 1007 "R_PPC64_TOC16_HI", /* name */
b34976b6 1008 FALSE, /* partial_inplace */
5bd4f169
AM		 1009 0, /* src_mask */
1010 0xffff, /* dst_mask */
b34976b6 1011 FALSE), /* pcrel_offset */
5bd4f169
AM		 1012
1013 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
1014 contents of the low 16 bits, treated as a signed number, is
1015 negative. */
1016
1017 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
1018 HOWTO (R_PPC64_TOC16_HA, /* type */
1019 16, /* rightshift */
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1021 16, /* bitsize */
b34976b6 1022 FALSE, /* pc_relative */
5bd4f169 1023 0, /* bitpos */
f9c6b907 1024 complain_overflow_signed, /* complain_on_overflow */
805fc799 1025 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 1026 "R_PPC64_TOC16_HA", /* name */
b34976b6 1027 FALSE, /* partial_inplace */
5bd4f169
AM		 1028 0, /* src_mask */
1029 0xffff, /* dst_mask */
b34976b6 1030 FALSE), /* pcrel_offset */
5bd4f169
AM		 1031
1032 /* 64-bit relocation; insert value of TOC base (.TOC.). */
1033
1034 /* R_PPC64_TOC 51 doubleword64 .TOC. */
1035 HOWTO (R_PPC64_TOC, /* type */
1036 0, /* rightshift */
1037 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1038 64, /* bitsize */
b34976b6 1039 FALSE, /* pc_relative */
5bd4f169 1040 0, /* bitpos */
b80eed39 1041 complain_overflow_dont, /* complain_on_overflow */
805fc799 1042 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 1043 "R_PPC64_TOC", /* name */
b34976b6 1044 FALSE, /* partial_inplace */
5bd4f169 1045 0, /* src_mask */
f5e87a1d 1046 ONES (64), /* dst_mask */
b34976b6 1047 FALSE), /* pcrel_offset */
5bd4f169
AM		 1048
1049 /* Like R_PPC64_GOT16, but also informs the link editor that the
1050 value to relocate may (!) refer to a PLT entry which the link
1051 editor (a) may replace with the symbol value. If the link editor
1052 is unable to fully resolve the symbol, it may (b) create a PLT
1053 entry and store the address to the new PLT entry in the GOT.
1054 This permits lazy resolution of function symbols at run time.
1055 The link editor may also skip all of this and just (c) emit a
1056 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1057 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1058 HOWTO (R_PPC64_PLTGOT16, /* type */
1059 0, /* rightshift */
1060 1, /* size (0 = byte, 1 = short, 2 = long) */
1061 16, /* bitsize */
b34976b6 1062 FALSE, /* pc_relative */
5bd4f169
AM		 1063 0, /* bitpos */
1064 complain_overflow_signed, /* complain_on_overflow */
805fc799 1065 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 1066 "R_PPC64_PLTGOT16", /* name */
1067 FALSE, /* partial_inplace */
1068 0, /* src_mask */
1069 0xffff, /* dst_mask */
1070 FALSE), /* pcrel_offset */
1071
1072 /* Like R_PPC64_PLTGOT16, but without overflow. */
1073 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1074 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1075 0, /* rightshift */
1076 1, /* size (0 = byte, 1 = short, 2 = long) */
1077 16, /* bitsize */
1078 FALSE, /* pc_relative */
1079 0, /* bitpos */
1080 complain_overflow_dont, /* complain_on_overflow */
1081 ppc64_elf_unhandled_reloc, /* special_function */
1082 "R_PPC64_PLTGOT16_LO", /* name */
1083 FALSE, /* partial_inplace */
1084 0, /* src_mask */
1085 0xffff, /* dst_mask */
1086 FALSE), /* pcrel_offset */
1087
1088 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1089 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1090 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1091 16, /* rightshift */
1092 1, /* size (0 = byte, 1 = short, 2 = long) */
1093 16, /* bitsize */
1094 FALSE, /* pc_relative */
1095 0, /* bitpos */
f9c6b907 1096 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1097 ppc64_elf_unhandled_reloc, /* special_function */
1098 "R_PPC64_PLTGOT16_HI", /* name */
1099 FALSE, /* partial_inplace */
1100 0, /* src_mask */
1101 0xffff, /* dst_mask */
1102 FALSE), /* pcrel_offset */
1103
1104 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1105 1 if the contents of the low 16 bits, treated as a signed number,
1106 is negative. */
1107 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1108 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1109 16, /* rightshift */
1110 1, /* size (0 = byte, 1 = short, 2 = long) */
1111 16, /* bitsize */
1112 FALSE, /* pc_relative */
1113 0, /* bitpos */
f9c6b907 1114 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1115 ppc64_elf_unhandled_reloc, /* special_function */
1116 "R_PPC64_PLTGOT16_HA", /* name */
1117 FALSE, /* partial_inplace */
1118 0, /* src_mask */
1119 0xffff, /* dst_mask */
1120 FALSE), /* pcrel_offset */
1121
1122 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1123 HOWTO (R_PPC64_ADDR16_DS, /* type */
1124 0, /* rightshift */
1125 1, /* size (0 = byte, 1 = short, 2 = long) */
1126 16, /* bitsize */
1127 FALSE, /* pc_relative */
1128 0, /* bitpos */
b80eed39 1129 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1130 bfd_elf_generic_reloc, /* special_function */
1131 "R_PPC64_ADDR16_DS", /* name */
1132 FALSE, /* partial_inplace */
1133 0, /* src_mask */
1134 0xfffc, /* dst_mask */
1135 FALSE), /* pcrel_offset */
1136
1137 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1138 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1139 0, /* rightshift */
1140 1, /* size (0 = byte, 1 = short, 2 = long) */
1141 16, /* bitsize */
1142 FALSE, /* pc_relative */
1143 0, /* bitpos */
1144 complain_overflow_dont,/* complain_on_overflow */
1145 bfd_elf_generic_reloc, /* special_function */
1146 "R_PPC64_ADDR16_LO_DS",/* name */
1147 FALSE, /* partial_inplace */
1148 0, /* src_mask */
1149 0xfffc, /* dst_mask */
1150 FALSE), /* pcrel_offset */
1151
1152 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1153 HOWTO (R_PPC64_GOT16_DS, /* type */
1154 0, /* rightshift */
1155 1, /* size (0 = byte, 1 = short, 2 = long) */
1156 16, /* bitsize */
1157 FALSE, /* pc_relative */
1158 0, /* bitpos */
1159 complain_overflow_signed, /* complain_on_overflow */
1160 ppc64_elf_unhandled_reloc, /* special_function */
1161 "R_PPC64_GOT16_DS", /* name */
1162 FALSE, /* partial_inplace */
1163 0, /* src_mask */
1164 0xfffc, /* dst_mask */
1165 FALSE), /* pcrel_offset */
1166
1167 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1168 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1169 0, /* rightshift */
1170 1, /* size (0 = byte, 1 = short, 2 = long) */
1171 16, /* bitsize */
1172 FALSE, /* pc_relative */
1173 0, /* bitpos */
1174 complain_overflow_dont, /* complain_on_overflow */
1175 ppc64_elf_unhandled_reloc, /* special_function */
1176 "R_PPC64_GOT16_LO_DS", /* name */
1177 FALSE, /* partial_inplace */
1178 0, /* src_mask */
1179 0xfffc, /* dst_mask */
1180 FALSE), /* pcrel_offset */
1181
1182 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1183 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1184 0, /* rightshift */
1185 1, /* size (0 = byte, 1 = short, 2 = long) */
1186 16, /* bitsize */
1187 FALSE, /* pc_relative */
1188 0, /* bitpos */
1189 complain_overflow_dont, /* complain_on_overflow */
1190 ppc64_elf_unhandled_reloc, /* special_function */
1191 "R_PPC64_PLT16_LO_DS", /* name */
1192 FALSE, /* partial_inplace */
1193 0, /* src_mask */
1194 0xfffc, /* dst_mask */
1195 FALSE), /* pcrel_offset */
1196
1197 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1198 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1199 0, /* rightshift */
1200 1, /* size (0 = byte, 1 = short, 2 = long) */
1201 16, /* bitsize */
1202 FALSE, /* pc_relative */
1203 0, /* bitpos */
b80eed39 1204 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1205 ppc64_elf_sectoff_reloc, /* special_function */
1206 "R_PPC64_SECTOFF_DS", /* name */
1207 FALSE, /* partial_inplace */
1208 0, /* src_mask */
1209 0xfffc, /* dst_mask */
1210 FALSE), /* pcrel_offset */
1211
1212 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1213 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1214 0, /* rightshift */
1215 1, /* size (0 = byte, 1 = short, 2 = long) */
1216 16, /* bitsize */
1217 FALSE, /* pc_relative */
1218 0, /* bitpos */
1219 complain_overflow_dont, /* complain_on_overflow */
1220 ppc64_elf_sectoff_reloc, /* special_function */
1221 "R_PPC64_SECTOFF_LO_DS",/* name */
1222 FALSE, /* partial_inplace */
1223 0, /* src_mask */
1224 0xfffc, /* dst_mask */
1225 FALSE), /* pcrel_offset */
1226
1227 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1228 HOWTO (R_PPC64_TOC16_DS, /* type */
1229 0, /* rightshift */
1230 1, /* size (0 = byte, 1 = short, 2 = long) */
1231 16, /* bitsize */
1232 FALSE, /* pc_relative */
1233 0, /* bitpos */
1234 complain_overflow_signed, /* complain_on_overflow */
1235 ppc64_elf_toc_reloc, /* special_function */
1236 "R_PPC64_TOC16_DS", /* name */
1237 FALSE, /* partial_inplace */
1238 0, /* src_mask */
1239 0xfffc, /* dst_mask */
1240 FALSE), /* pcrel_offset */
1241
1242 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1243 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1244 0, /* rightshift */
1245 1, /* size (0 = byte, 1 = short, 2 = long) */
1246 16, /* bitsize */
1247 FALSE, /* pc_relative */
1248 0, /* bitpos */
1249 complain_overflow_dont, /* complain_on_overflow */
1250 ppc64_elf_toc_reloc, /* special_function */
1251 "R_PPC64_TOC16_LO_DS", /* name */
1252 FALSE, /* partial_inplace */
1253 0, /* src_mask */
1254 0xfffc, /* dst_mask */
1255 FALSE), /* pcrel_offset */
1256
1257 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1258 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
6bfdb61b 1259 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
411e1bfb
AM		 1260 0, /* rightshift */
1261 1, /* size (0 = byte, 1 = short, 2 = long) */
1262 16, /* bitsize */
1263 FALSE, /* pc_relative */
1264 0, /* bitpos */
1265 complain_overflow_signed, /* complain_on_overflow */
1266 ppc64_elf_unhandled_reloc, /* special_function */
1267 "R_PPC64_PLTGOT16_DS", /* name */
1268 FALSE, /* partial_inplace */
1269 0, /* src_mask */
1270 0xfffc, /* dst_mask */
1271 FALSE), /* pcrel_offset */
1272
1273 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1274 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1275 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1276 0, /* rightshift */
1277 1, /* size (0 = byte, 1 = short, 2 = long) */
1278 16, /* bitsize */
1279 FALSE, /* pc_relative */
1280 0, /* bitpos */
1281 complain_overflow_dont, /* complain_on_overflow */
1282 ppc64_elf_unhandled_reloc, /* special_function */
1283 "R_PPC64_PLTGOT16_LO_DS",/* name */
1284 FALSE, /* partial_inplace */
1285 0, /* src_mask */
1286 0xfffc, /* dst_mask */
1287 FALSE), /* pcrel_offset */
1288
727fc41e 1289 /* Marker relocs for TLS. */
411e1bfb
AM		 1290 HOWTO (R_PPC64_TLS,
1291 0, /* rightshift */
1292 2, /* size (0 = byte, 1 = short, 2 = long) */
1293 32, /* bitsize */
1294 FALSE, /* pc_relative */
1295 0, /* bitpos */
1296 complain_overflow_dont, /* complain_on_overflow */
1297 bfd_elf_generic_reloc, /* special_function */
1298 "R_PPC64_TLS", /* name */
1299 FALSE, /* partial_inplace */
1300 0, /* src_mask */
1301 0, /* dst_mask */
1302 FALSE), /* pcrel_offset */
1303
727fc41e
AM		 1304 HOWTO (R_PPC64_TLSGD,
1305 0, /* rightshift */
1306 2, /* size (0 = byte, 1 = short, 2 = long) */
1307 32, /* bitsize */
1308 FALSE, /* pc_relative */
1309 0, /* bitpos */
1310 complain_overflow_dont, /* complain_on_overflow */
1311 bfd_elf_generic_reloc, /* special_function */
1312 "R_PPC64_TLSGD", /* name */
1313 FALSE, /* partial_inplace */
1314 0, /* src_mask */
1315 0, /* dst_mask */
1316 FALSE), /* pcrel_offset */
1317
1318 HOWTO (R_PPC64_TLSLD,
1319 0, /* rightshift */
1320 2, /* size (0 = byte, 1 = short, 2 = long) */
1321 32, /* bitsize */
1322 FALSE, /* pc_relative */
1323 0, /* bitpos */
1324 complain_overflow_dont, /* complain_on_overflow */
1325 bfd_elf_generic_reloc, /* special_function */
1326 "R_PPC64_TLSLD", /* name */
1327 FALSE, /* partial_inplace */
1328 0, /* src_mask */
1329 0, /* dst_mask */
1330 FALSE), /* pcrel_offset */
1331
3b421ab3
AM		 1332 HOWTO (R_PPC64_TOCSAVE,
1333 0, /* rightshift */
1334 2, /* size (0 = byte, 1 = short, 2 = long) */
1335 32, /* bitsize */
1336 FALSE, /* pc_relative */
1337 0, /* bitpos */
1338 complain_overflow_dont, /* complain_on_overflow */
1339 bfd_elf_generic_reloc, /* special_function */
1340 "R_PPC64_TOCSAVE", /* name */
1341 FALSE, /* partial_inplace */
1342 0, /* src_mask */
1343 0, /* dst_mask */
1344 FALSE), /* pcrel_offset */
1345
411e1bfb
AM		 1346 /* Computes the load module index of the load module that contains the
1347 definition of its TLS sym. */
1348 HOWTO (R_PPC64_DTPMOD64,
1349 0, /* rightshift */
1350 4, /* size (0 = byte, 1 = short, 2 = long) */
1351 64, /* bitsize */
1352 FALSE, /* pc_relative */
1353 0, /* bitpos */
1354 complain_overflow_dont, /* complain_on_overflow */
1355 ppc64_elf_unhandled_reloc, /* special_function */
1356 "R_PPC64_DTPMOD64", /* name */
1357 FALSE, /* partial_inplace */
1358 0, /* src_mask */
1359 ONES (64), /* dst_mask */
1360 FALSE), /* pcrel_offset */
1361
1362 /* Computes a dtv-relative displacement, the difference between the value
1363 of sym+add and the base address of the thread-local storage block that
1364 contains the definition of sym, minus 0x8000. */
1365 HOWTO (R_PPC64_DTPREL64,
1366 0, /* rightshift */
1367 4, /* size (0 = byte, 1 = short, 2 = long) */
1368 64, /* bitsize */
1369 FALSE, /* pc_relative */
1370 0, /* bitpos */
1371 complain_overflow_dont, /* complain_on_overflow */
1372 ppc64_elf_unhandled_reloc, /* special_function */
1373 "R_PPC64_DTPREL64", /* name */
1374 FALSE, /* partial_inplace */
1375 0, /* src_mask */
1376 ONES (64), /* dst_mask */
1377 FALSE), /* pcrel_offset */
1378
1379 /* A 16 bit dtprel reloc. */
1380 HOWTO (R_PPC64_DTPREL16,
1381 0, /* rightshift */
1382 1, /* size (0 = byte, 1 = short, 2 = long) */
1383 16, /* bitsize */
1384 FALSE, /* pc_relative */
1385 0, /* bitpos */
1386 complain_overflow_signed, /* complain_on_overflow */
1387 ppc64_elf_unhandled_reloc, /* special_function */
1388 "R_PPC64_DTPREL16", /* name */
1389 FALSE, /* partial_inplace */
1390 0, /* src_mask */
1391 0xffff, /* dst_mask */
1392 FALSE), /* pcrel_offset */
1393
1394 /* Like DTPREL16, but no overflow. */
1395 HOWTO (R_PPC64_DTPREL16_LO,
1396 0, /* rightshift */
1397 1, /* size (0 = byte, 1 = short, 2 = long) */
1398 16, /* bitsize */
1399 FALSE, /* pc_relative */
1400 0, /* bitpos */
1401 complain_overflow_dont, /* complain_on_overflow */
1402 ppc64_elf_unhandled_reloc, /* special_function */
1403 "R_PPC64_DTPREL16_LO", /* name */
1404 FALSE, /* partial_inplace */
1405 0, /* src_mask */
1406 0xffff, /* dst_mask */
1407 FALSE), /* pcrel_offset */
1408
1409 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1410 HOWTO (R_PPC64_DTPREL16_HI,
1411 16, /* rightshift */
1412 1, /* size (0 = byte, 1 = short, 2 = long) */
1413 16, /* bitsize */
1414 FALSE, /* pc_relative */
1415 0, /* bitpos */
f9c6b907 1416 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1417 ppc64_elf_unhandled_reloc, /* special_function */
1418 "R_PPC64_DTPREL16_HI", /* name */
1419 FALSE, /* partial_inplace */
1420 0, /* src_mask */
1421 0xffff, /* dst_mask */
1422 FALSE), /* pcrel_offset */
1423
1424 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1425 HOWTO (R_PPC64_DTPREL16_HA,
1426 16, /* rightshift */
1427 1, /* size (0 = byte, 1 = short, 2 = long) */
1428 16, /* bitsize */
1429 FALSE, /* pc_relative */
1430 0, /* bitpos */
f9c6b907 1431 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1432 ppc64_elf_unhandled_reloc, /* special_function */
1433 "R_PPC64_DTPREL16_HA", /* name */
1434 FALSE, /* partial_inplace */
1435 0, /* src_mask */
1436 0xffff, /* dst_mask */
1437 FALSE), /* pcrel_offset */
1438
1439 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1440 HOWTO (R_PPC64_DTPREL16_HIGHER,
1441 32, /* rightshift */
1442 1, /* size (0 = byte, 1 = short, 2 = long) */
1443 16, /* bitsize */
1444 FALSE, /* pc_relative */
1445 0, /* bitpos */
1446 complain_overflow_dont, /* complain_on_overflow */
1447 ppc64_elf_unhandled_reloc, /* special_function */
1448 "R_PPC64_DTPREL16_HIGHER", /* name */
1449 FALSE, /* partial_inplace */
1450 0, /* src_mask */
1451 0xffff, /* dst_mask */
1452 FALSE), /* pcrel_offset */
1453
1454 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1455 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1456 32, /* rightshift */
1457 1, /* size (0 = byte, 1 = short, 2 = long) */
1458 16, /* bitsize */
1459 FALSE, /* pc_relative */
1460 0, /* bitpos */
1461 complain_overflow_dont, /* complain_on_overflow */
1462 ppc64_elf_unhandled_reloc, /* special_function */
1463 "R_PPC64_DTPREL16_HIGHERA", /* name */
1464 FALSE, /* partial_inplace */
1465 0, /* src_mask */
1466 0xffff, /* dst_mask */
1467 FALSE), /* pcrel_offset */
1468
1469 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1470 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1471 48, /* rightshift */
1472 1, /* size (0 = byte, 1 = short, 2 = long) */
1473 16, /* bitsize */
1474 FALSE, /* pc_relative */
1475 0, /* bitpos */
1476 complain_overflow_dont, /* complain_on_overflow */
1477 ppc64_elf_unhandled_reloc, /* special_function */
1478 "R_PPC64_DTPREL16_HIGHEST", /* name */
1479 FALSE, /* partial_inplace */
1480 0, /* src_mask */
1481 0xffff, /* dst_mask */
1482 FALSE), /* pcrel_offset */
1483
1484 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1485 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1486 48, /* rightshift */
1487 1, /* size (0 = byte, 1 = short, 2 = long) */
1488 16, /* bitsize */
1489 FALSE, /* pc_relative */
1490 0, /* bitpos */
1491 complain_overflow_dont, /* complain_on_overflow */
1492 ppc64_elf_unhandled_reloc, /* special_function */
1493 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1494 FALSE, /* partial_inplace */
1495 0, /* src_mask */
1496 0xffff, /* dst_mask */
1497 FALSE), /* pcrel_offset */
1498
1499 /* Like DTPREL16, but for insns with a DS field. */
1500 HOWTO (R_PPC64_DTPREL16_DS,
1501 0, /* rightshift */
1502 1, /* size (0 = byte, 1 = short, 2 = long) */
1503 16, /* bitsize */
1504 FALSE, /* pc_relative */
1505 0, /* bitpos */
1506 complain_overflow_signed, /* complain_on_overflow */
1507 ppc64_elf_unhandled_reloc, /* special_function */
1508 "R_PPC64_DTPREL16_DS", /* name */
1509 FALSE, /* partial_inplace */
1510 0, /* src_mask */
1511 0xfffc, /* dst_mask */
1512 FALSE), /* pcrel_offset */
1513
1514 /* Like DTPREL16_DS, but no overflow. */
1515 HOWTO (R_PPC64_DTPREL16_LO_DS,
1516 0, /* rightshift */
1517 1, /* size (0 = byte, 1 = short, 2 = long) */
1518 16, /* bitsize */
1519 FALSE, /* pc_relative */
1520 0, /* bitpos */
1521 complain_overflow_dont, /* complain_on_overflow */
1522 ppc64_elf_unhandled_reloc, /* special_function */
1523 "R_PPC64_DTPREL16_LO_DS", /* name */
1524 FALSE, /* partial_inplace */
1525 0, /* src_mask */
1526 0xfffc, /* dst_mask */
1527 FALSE), /* pcrel_offset */
1528
1529 /* Computes a tp-relative displacement, the difference between the value of
1530 sym+add and the value of the thread pointer (r13). */
1531 HOWTO (R_PPC64_TPREL64,
1532 0, /* rightshift */
1533 4, /* size (0 = byte, 1 = short, 2 = long) */
1534 64, /* bitsize */
1535 FALSE, /* pc_relative */
1536 0, /* bitpos */
1537 complain_overflow_dont, /* complain_on_overflow */
1538 ppc64_elf_unhandled_reloc, /* special_function */
1539 "R_PPC64_TPREL64", /* name */
1540 FALSE, /* partial_inplace */
1541 0, /* src_mask */
1542 ONES (64), /* dst_mask */
1543 FALSE), /* pcrel_offset */
1544
1545 /* A 16 bit tprel reloc. */
1546 HOWTO (R_PPC64_TPREL16,
1547 0, /* rightshift */
1548 1, /* size (0 = byte, 1 = short, 2 = long) */
1549 16, /* bitsize */
1550 FALSE, /* pc_relative */
1551 0, /* bitpos */
1552 complain_overflow_signed, /* complain_on_overflow */
1553 ppc64_elf_unhandled_reloc, /* special_function */
1554 "R_PPC64_TPREL16", /* name */
1555 FALSE, /* partial_inplace */
1556 0, /* src_mask */
1557 0xffff, /* dst_mask */
1558 FALSE), /* pcrel_offset */
1559
1560 /* Like TPREL16, but no overflow. */
1561 HOWTO (R_PPC64_TPREL16_LO,
1562 0, /* rightshift */
1563 1, /* size (0 = byte, 1 = short, 2 = long) */
1564 16, /* bitsize */
1565 FALSE, /* pc_relative */
1566 0, /* bitpos */
1567 complain_overflow_dont, /* complain_on_overflow */
1568 ppc64_elf_unhandled_reloc, /* special_function */
1569 "R_PPC64_TPREL16_LO", /* name */
1570 FALSE, /* partial_inplace */
1571 0, /* src_mask */
1572 0xffff, /* dst_mask */
1573 FALSE), /* pcrel_offset */
1574
1575 /* Like TPREL16_LO, but next higher group of 16 bits. */
1576 HOWTO (R_PPC64_TPREL16_HI,
1577 16, /* rightshift */
1578 1, /* size (0 = byte, 1 = short, 2 = long) */
1579 16, /* bitsize */
1580 FALSE, /* pc_relative */
1581 0, /* bitpos */
f9c6b907 1582 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1583 ppc64_elf_unhandled_reloc, /* special_function */
1584 "R_PPC64_TPREL16_HI", /* name */
1585 FALSE, /* partial_inplace */
1586 0, /* src_mask */
1587 0xffff, /* dst_mask */
1588 FALSE), /* pcrel_offset */
1589
1590 /* Like TPREL16_HI, but adjust for low 16 bits. */
1591 HOWTO (R_PPC64_TPREL16_HA,
1592 16, /* rightshift */
1593 1, /* size (0 = byte, 1 = short, 2 = long) */
1594 16, /* bitsize */
1595 FALSE, /* pc_relative */
1596 0, /* bitpos */
f9c6b907 1597 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1598 ppc64_elf_unhandled_reloc, /* special_function */
1599 "R_PPC64_TPREL16_HA", /* name */
1600 FALSE, /* partial_inplace */
1601 0, /* src_mask */
1602 0xffff, /* dst_mask */
1603 FALSE), /* pcrel_offset */
1604
1605 /* Like TPREL16_HI, but next higher group of 16 bits. */
1606 HOWTO (R_PPC64_TPREL16_HIGHER,
1607 32, /* rightshift */
1608 1, /* size (0 = byte, 1 = short, 2 = long) */
1609 16, /* bitsize */
1610 FALSE, /* pc_relative */
1611 0, /* bitpos */
1612 complain_overflow_dont, /* complain_on_overflow */
1613 ppc64_elf_unhandled_reloc, /* special_function */
1614 "R_PPC64_TPREL16_HIGHER", /* name */
1615 FALSE, /* partial_inplace */
1616 0, /* src_mask */
1617 0xffff, /* dst_mask */
1618 FALSE), /* pcrel_offset */
1619
1620 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1621 HOWTO (R_PPC64_TPREL16_HIGHERA,
1622 32, /* rightshift */
1623 1, /* size (0 = byte, 1 = short, 2 = long) */
1624 16, /* bitsize */
1625 FALSE, /* pc_relative */
1626 0, /* bitpos */
1627 complain_overflow_dont, /* complain_on_overflow */
1628 ppc64_elf_unhandled_reloc, /* special_function */
1629 "R_PPC64_TPREL16_HIGHERA", /* name */
1630 FALSE, /* partial_inplace */
1631 0, /* src_mask */
1632 0xffff, /* dst_mask */
1633 FALSE), /* pcrel_offset */
1634
1635 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1636 HOWTO (R_PPC64_TPREL16_HIGHEST,
1637 48, /* rightshift */
1638 1, /* size (0 = byte, 1 = short, 2 = long) */
1639 16, /* bitsize */
1640 FALSE, /* pc_relative */
1641 0, /* bitpos */
1642 complain_overflow_dont, /* complain_on_overflow */
1643 ppc64_elf_unhandled_reloc, /* special_function */
1644 "R_PPC64_TPREL16_HIGHEST", /* name */
1645 FALSE, /* partial_inplace */
1646 0, /* src_mask */
1647 0xffff, /* dst_mask */
1648 FALSE), /* pcrel_offset */
1649
1650 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1651 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1652 48, /* rightshift */
1653 1, /* size (0 = byte, 1 = short, 2 = long) */
1654 16, /* bitsize */
1655 FALSE, /* pc_relative */
1656 0, /* bitpos */
1657 complain_overflow_dont, /* complain_on_overflow */
1658 ppc64_elf_unhandled_reloc, /* special_function */
1659 "R_PPC64_TPREL16_HIGHESTA", /* name */
1660 FALSE, /* partial_inplace */
1661 0, /* src_mask */
1662 0xffff, /* dst_mask */
1663 FALSE), /* pcrel_offset */
1664
1665 /* Like TPREL16, but for insns with a DS field. */
1666 HOWTO (R_PPC64_TPREL16_DS,
1667 0, /* rightshift */
1668 1, /* size (0 = byte, 1 = short, 2 = long) */
1669 16, /* bitsize */
1670 FALSE, /* pc_relative */
1671 0, /* bitpos */
1672 complain_overflow_signed, /* complain_on_overflow */
1673 ppc64_elf_unhandled_reloc, /* special_function */
1674 "R_PPC64_TPREL16_DS", /* name */
1675 FALSE, /* partial_inplace */
1676 0, /* src_mask */
1677 0xfffc, /* dst_mask */
1678 FALSE), /* pcrel_offset */
1679
1680 /* Like TPREL16_DS, but no overflow. */
1681 HOWTO (R_PPC64_TPREL16_LO_DS,
1682 0, /* rightshift */
1683 1, /* size (0 = byte, 1 = short, 2 = long) */
1684 16, /* bitsize */
1685 FALSE, /* pc_relative */
1686 0, /* bitpos */
1687 complain_overflow_dont, /* complain_on_overflow */
1688 ppc64_elf_unhandled_reloc, /* special_function */
1689 "R_PPC64_TPREL16_LO_DS", /* name */
1690 FALSE, /* partial_inplace */
1691 0, /* src_mask */
1692 0xfffc, /* dst_mask */
1693 FALSE), /* pcrel_offset */
1694
1695 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1696 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1697 to the first entry relative to the TOC base (r2). */
1698 HOWTO (R_PPC64_GOT_TLSGD16,
1699 0, /* rightshift */
1700 1, /* size (0 = byte, 1 = short, 2 = long) */
1701 16, /* bitsize */
1702 FALSE, /* pc_relative */
1703 0, /* bitpos */
1704 complain_overflow_signed, /* complain_on_overflow */
1705 ppc64_elf_unhandled_reloc, /* special_function */
1706 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1707 FALSE, /* partial_inplace */
5bd4f169
AM		 1708 0, /* src_mask */
1709 0xffff, /* dst_mask */
b34976b6 1710 FALSE), /* pcrel_offset */
5bd4f169 1711
411e1bfb
AM		 1712 /* Like GOT_TLSGD16, but no overflow. */
1713 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1714 0, /* rightshift */
1715 1, /* size (0 = byte, 1 = short, 2 = long) */
1716 16, /* bitsize */
b34976b6 1717 FALSE, /* pc_relative */
5bd4f169
AM		 1718 0, /* bitpos */
1719 complain_overflow_dont, /* complain_on_overflow */
805fc799 1720 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1721 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1722 FALSE, /* partial_inplace */
5bd4f169
AM		 1723 0, /* src_mask */
1724 0xffff, /* dst_mask */
b34976b6 1725 FALSE), /* pcrel_offset */
5bd4f169 1726
411e1bfb
AM		 1727 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1728 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1729 16, /* rightshift */
1730 1, /* size (0 = byte, 1 = short, 2 = long) */
1731 16, /* bitsize */
b34976b6 1732 FALSE, /* pc_relative */
5bd4f169 1733 0, /* bitpos */
f9c6b907 1734 complain_overflow_signed, /* complain_on_overflow */
805fc799 1735 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1736 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1737 FALSE, /* partial_inplace */
5bd4f169
AM		 1738 0, /* src_mask */
1739 0xffff, /* dst_mask */
b34976b6 1740 FALSE), /* pcrel_offset */
5bd4f169 1741
411e1bfb
AM		 1742 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1743 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1744 16, /* rightshift */
1745 1, /* size (0 = byte, 1 = short, 2 = long) */
1746 16, /* bitsize */
b34976b6 1747 FALSE, /* pc_relative */
5bd4f169 1748 0, /* bitpos */
f9c6b907 1749 complain_overflow_signed, /* complain_on_overflow */
805fc799 1750 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1751 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1752 FALSE, /* partial_inplace */
5bd4f169
AM		 1753 0, /* src_mask */
1754 0xffff, /* dst_mask */
b34976b6 1755 FALSE), /* pcrel_offset */
5bd4f169 1756
411e1bfb
AM		 1757 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1758 with values (sym+add)@dtpmod and zero, and computes the offset to the
1759 first entry relative to the TOC base (r2). */
1760 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1761 0, /* rightshift */
1762 1, /* size (0 = byte, 1 = short, 2 = long) */
1763 16, /* bitsize */
b34976b6 1764 FALSE, /* pc_relative */
5bd4f169 1765 0, /* bitpos */
411e1bfb
AM		 1766 complain_overflow_signed, /* complain_on_overflow */
1767 ppc64_elf_unhandled_reloc, /* special_function */
1768 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1769 FALSE, /* partial_inplace */
d006db6c 1770 0, /* src_mask */
411e1bfb 1771 0xffff, /* dst_mask */
b34976b6 1772 FALSE), /* pcrel_offset */
5bd4f169 1773
411e1bfb
AM		 1774 /* Like GOT_TLSLD16, but no overflow. */
1775 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1776 0, /* rightshift */
1777 1, /* size (0 = byte, 1 = short, 2 = long) */
1778 16, /* bitsize */
b34976b6 1779 FALSE, /* pc_relative */
5bd4f169 1780 0, /* bitpos */
411e1bfb
AM		 1781 complain_overflow_dont, /* complain_on_overflow */
1782 ppc64_elf_unhandled_reloc, /* special_function */
1783 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1784 FALSE, /* partial_inplace */
d006db6c 1785 0, /* src_mask */
411e1bfb 1786 0xffff, /* dst_mask */
b34976b6 1787 FALSE), /* pcrel_offset */
5bd4f169 1788
411e1bfb
AM		 1789 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1790 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1791 16, /* rightshift */
5bd4f169
AM		 1792 1, /* size (0 = byte, 1 = short, 2 = long) */
1793 16, /* bitsize */
b34976b6 1794 FALSE, /* pc_relative */
5bd4f169 1795 0, /* bitpos */
f9c6b907 1796 complain_overflow_signed, /* complain_on_overflow */
805fc799 1797 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1798 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1799 FALSE, /* partial_inplace */
d006db6c 1800 0, /* src_mask */
411e1bfb 1801 0xffff, /* dst_mask */
b34976b6 1802 FALSE), /* pcrel_offset */
5bd4f169 1803
411e1bfb
AM		 1804 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1805 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1806 16, /* rightshift */
5bd4f169
AM		 1807 1, /* size (0 = byte, 1 = short, 2 = long) */
1808 16, /* bitsize */
b34976b6 1809 FALSE, /* pc_relative */
5bd4f169 1810 0, /* bitpos */
f9c6b907 1811 complain_overflow_signed, /* complain_on_overflow */
805fc799 1812 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1813 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1814 FALSE, /* partial_inplace */
d006db6c 1815 0, /* src_mask */
411e1bfb 1816 0xffff, /* dst_mask */
b34976b6 1817 FALSE), /* pcrel_offset */
5bd4f169 1818
411e1bfb
AM		 1819 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1820 the offset to the entry relative to the TOC base (r2). */
1821 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1822 0, /* rightshift */
1823 1, /* size (0 = byte, 1 = short, 2 = long) */
1824 16, /* bitsize */
b34976b6 1825 FALSE, /* pc_relative */
5bd4f169 1826 0, /* bitpos */
411e1bfb 1827 complain_overflow_signed, /* complain_on_overflow */
805fc799 1828 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1829 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1830 FALSE, /* partial_inplace */
d006db6c 1831 0, /* src_mask */
5bd4f169 1832 0xfffc, /* dst_mask */
b34976b6 1833 FALSE), /* pcrel_offset */
5bd4f169 1834
411e1bfb
AM		 1835 /* Like GOT_DTPREL16_DS, but no overflow. */
1836 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1837 0, /* rightshift */
c061c2d8
AM		 1838 1, /* size (0 = byte, 1 = short, 2 = long) */
1839 16, /* bitsize */
b34976b6 1840 FALSE, /* pc_relative */
5bd4f169 1841 0, /* bitpos */
411e1bfb
AM		 1842 complain_overflow_dont, /* complain_on_overflow */
1843 ppc64_elf_unhandled_reloc, /* special_function */
1844 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1845 FALSE, /* partial_inplace */
d006db6c 1846 0, /* src_mask */
c061c2d8 1847 0xfffc, /* dst_mask */
b34976b6 1848 FALSE), /* pcrel_offset */
5bd4f169 1849
411e1bfb
AM		 1850 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1851 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1852 16, /* rightshift */
5bd4f169
AM		 1853 1, /* size (0 = byte, 1 = short, 2 = long) */
1854 16, /* bitsize */
b34976b6 1855 FALSE, /* pc_relative */
5bd4f169 1856 0, /* bitpos */
f9c6b907 1857 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1858 ppc64_elf_unhandled_reloc, /* special_function */
1859 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1860 FALSE, /* partial_inplace */
d006db6c 1861 0, /* src_mask */
411e1bfb 1862 0xffff, /* dst_mask */
b34976b6 1863 FALSE), /* pcrel_offset */
5bd4f169 1864
411e1bfb
AM		 1865 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1866 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1867 16, /* rightshift */
1868 1, /* size (0 = byte, 1 = short, 2 = long) */
1869 16, /* bitsize */
1870 FALSE, /* pc_relative */
1871 0, /* bitpos */
f9c6b907 1872 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1873 ppc64_elf_unhandled_reloc, /* special_function */
1874 "R_PPC64_GOT_DTPREL16_HA", /* name */
1875 FALSE, /* partial_inplace */
1876 0, /* src_mask */
1877 0xffff, /* dst_mask */
1878 FALSE), /* pcrel_offset */
1879
1880 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1881 offset to the entry relative to the TOC base (r2). */
1882 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1883 0, /* rightshift */
1884 1, /* size (0 = byte, 1 = short, 2 = long) */
1885 16, /* bitsize */
b34976b6 1886 FALSE, /* pc_relative */
5bd4f169
AM		 1887 0, /* bitpos */
1888 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1889 ppc64_elf_unhandled_reloc, /* special_function */
1890 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1891 FALSE, /* partial_inplace */
d006db6c 1892 0, /* src_mask */
ad8e1ba5 1893 0xfffc, /* dst_mask */
b34976b6 1894 FALSE), /* pcrel_offset */
5bd4f169 1895
411e1bfb
AM		 1896 /* Like GOT_TPREL16_DS, but no overflow. */
1897 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1898 0, /* rightshift */
1899 1, /* size (0 = byte, 1 = short, 2 = long) */
1900 16, /* bitsize */
b34976b6 1901 FALSE, /* pc_relative */
5bd4f169
AM		 1902 0, /* bitpos */
1903 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1904 ppc64_elf_unhandled_reloc, /* special_function */
1905 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1906 FALSE, /* partial_inplace */
d006db6c 1907 0, /* src_mask */
ad8e1ba5 1908 0xfffc, /* dst_mask */
b34976b6 1909 FALSE), /* pcrel_offset */
5bd4f169 1910
411e1bfb
AM		 1911 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1912 HOWTO (R_PPC64_GOT_TPREL16_HI,
1913 16, /* rightshift */
5bd4f169
AM		 1914 1, /* size (0 = byte, 1 = short, 2 = long) */
1915 16, /* bitsize */
b34976b6 1916 FALSE, /* pc_relative */
5bd4f169 1917 0, /* bitpos */
f9c6b907 1918 complain_overflow_signed, /* complain_on_overflow */
805fc799 1919 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1920 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1921 FALSE, /* partial_inplace */
d006db6c 1922 0, /* src_mask */
411e1bfb 1923 0xffff, /* dst_mask */
b34976b6 1924 FALSE), /* pcrel_offset */
5bd4f169 1925
411e1bfb
AM		 1926 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1927 HOWTO (R_PPC64_GOT_TPREL16_HA,
1928 16, /* rightshift */
5bd4f169
AM		 1929 1, /* size (0 = byte, 1 = short, 2 = long) */
1930 16, /* bitsize */
b34976b6 1931 FALSE, /* pc_relative */
5bd4f169 1932 0, /* bitpos */
f9c6b907 1933 complain_overflow_signed, /* complain_on_overflow */
805fc799 1934 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1935 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1936 FALSE, /* partial_inplace */
d006db6c 1937 0, /* src_mask */
411e1bfb 1938 0xffff, /* dst_mask */
b34976b6 1939 FALSE), /* pcrel_offset */
5bd4f169 1940
25f23106
AM		 1941 HOWTO (R_PPC64_JMP_IREL, /* type */
1942 0, /* rightshift */
1943 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1944 0, /* bitsize */
1945 FALSE, /* pc_relative */
1946 0, /* bitpos */
1947 complain_overflow_dont, /* complain_on_overflow */
1948 ppc64_elf_unhandled_reloc, /* special_function */
1949 "R_PPC64_JMP_IREL", /* name */
1950 FALSE, /* partial_inplace */
1951 0, /* src_mask */
1952 0, /* dst_mask */
1953 FALSE), /* pcrel_offset */
1954
e054468f
AM		 1955 HOWTO (R_PPC64_IRELATIVE, /* type */
1956 0, /* rightshift */
1957 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1958 64, /* bitsize */
1959 FALSE, /* pc_relative */
1960 0, /* bitpos */
1961 complain_overflow_dont, /* complain_on_overflow */
1962 bfd_elf_generic_reloc, /* special_function */
1963 "R_PPC64_IRELATIVE", /* name */
1964 FALSE, /* partial_inplace */
1965 0, /* src_mask */
1966 ONES (64), /* dst_mask */
1967 FALSE), /* pcrel_offset */
1968
25f23106
AM		 1969 /* A 16 bit relative relocation. */
1970 HOWTO (R_PPC64_REL16, /* type */
1971 0, /* rightshift */
1972 1, /* size (0 = byte, 1 = short, 2 = long) */
1973 16, /* bitsize */
1974 TRUE, /* pc_relative */
1975 0, /* bitpos */
b80eed39 1976 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 1977 bfd_elf_generic_reloc, /* special_function */
1978 "R_PPC64_REL16", /* name */
1979 FALSE, /* partial_inplace */
1980 0, /* src_mask */
1981 0xffff, /* dst_mask */
1982 TRUE), /* pcrel_offset */
1983
1984 /* A 16 bit relative relocation without overflow. */
1985 HOWTO (R_PPC64_REL16_LO, /* type */
1986 0, /* rightshift */
1987 1, /* size (0 = byte, 1 = short, 2 = long) */
1988 16, /* bitsize */
1989 TRUE, /* pc_relative */
1990 0, /* bitpos */
1991 complain_overflow_dont,/* complain_on_overflow */
1992 bfd_elf_generic_reloc, /* special_function */
1993 "R_PPC64_REL16_LO", /* name */
1994 FALSE, /* partial_inplace */
1995 0, /* src_mask */
1996 0xffff, /* dst_mask */
1997 TRUE), /* pcrel_offset */
1998
1999 /* The high order 16 bits of a relative address. */
2000 HOWTO (R_PPC64_REL16_HI, /* type */
2001 16, /* rightshift */
2002 1, /* size (0 = byte, 1 = short, 2 = long) */
2003 16, /* bitsize */
2004 TRUE, /* pc_relative */
2005 0, /* bitpos */
f9c6b907 2006 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 2007 bfd_elf_generic_reloc, /* special_function */
2008 "R_PPC64_REL16_HI", /* name */
2009 FALSE, /* partial_inplace */
2010 0, /* src_mask */
2011 0xffff, /* dst_mask */
2012 TRUE), /* pcrel_offset */
2013
2014 /* The high order 16 bits of a relative address, plus 1 if the contents of
2015 the low 16 bits, treated as a signed number, is negative. */
2016 HOWTO (R_PPC64_REL16_HA, /* type */
2017 16, /* rightshift */
2018 1, /* size (0 = byte, 1 = short, 2 = long) */
2019 16, /* bitsize */
2020 TRUE, /* pc_relative */
2021 0, /* bitpos */
f9c6b907 2022 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 2023 ppc64_elf_ha_reloc, /* special_function */
2024 "R_PPC64_REL16_HA", /* name */
2025 FALSE, /* partial_inplace */
2026 0, /* src_mask */
2027 0xffff, /* dst_mask */
2028 TRUE), /* pcrel_offset */
2029
a680de9a
PB		 2030 /* Like R_PPC64_REL16_HA but for split field in addpcis. */
2031 HOWTO (R_PPC64_REL16DX_HA, /* type */
2032 16, /* rightshift */
2033 2, /* size (0 = byte, 1 = short, 2 = long) */
2034 16, /* bitsize */
2035 TRUE, /* pc_relative */
2036 0, /* bitpos */
2037 complain_overflow_signed, /* complain_on_overflow */
2038 ppc64_elf_ha_reloc, /* special_function */
2039 "R_PPC64_REL16DX_HA", /* name */
2040 FALSE, /* partial_inplace */
2041 0, /* src_mask */
2042 0x1fffc1, /* dst_mask */
2043 TRUE), /* pcrel_offset */
2044
f9c6b907
AM		 2045 /* Like R_PPC64_ADDR16_HI, but no overflow. */
2046 HOWTO (R_PPC64_ADDR16_HIGH, /* type */
2047 16, /* rightshift */
2048 1, /* size (0 = byte, 1 = short, 2 = long) */
2049 16, /* bitsize */
2050 FALSE, /* pc_relative */
2051 0, /* bitpos */
2052 complain_overflow_dont, /* complain_on_overflow */
2053 bfd_elf_generic_reloc, /* special_function */
2054 "R_PPC64_ADDR16_HIGH", /* name */
2055 FALSE, /* partial_inplace */
2056 0, /* src_mask */
2057 0xffff, /* dst_mask */
2058 FALSE), /* pcrel_offset */
2059
2060 /* Like R_PPC64_ADDR16_HA, but no overflow. */
2061 HOWTO (R_PPC64_ADDR16_HIGHA, /* type */
2062 16, /* rightshift */
2063 1, /* size (0 = byte, 1 = short, 2 = long) */
2064 16, /* bitsize */
2065 FALSE, /* pc_relative */
2066 0, /* bitpos */
2067 complain_overflow_dont, /* complain_on_overflow */
2068 ppc64_elf_ha_reloc, /* special_function */
2069 "R_PPC64_ADDR16_HIGHA", /* name */
2070 FALSE, /* partial_inplace */
2071 0, /* src_mask */
2072 0xffff, /* dst_mask */
2073 FALSE), /* pcrel_offset */
2074
2075 /* Like R_PPC64_DTPREL16_HI, but no overflow. */
2076 HOWTO (R_PPC64_DTPREL16_HIGH,
2077 16, /* rightshift */
2078 1, /* size (0 = byte, 1 = short, 2 = long) */
2079 16, /* bitsize */
2080 FALSE, /* pc_relative */
2081 0, /* bitpos */
2082 complain_overflow_dont, /* complain_on_overflow */
2083 ppc64_elf_unhandled_reloc, /* special_function */
2084 "R_PPC64_DTPREL16_HIGH", /* name */
2085 FALSE, /* partial_inplace */
2086 0, /* src_mask */
2087 0xffff, /* dst_mask */
2088 FALSE), /* pcrel_offset */
2089
2090 /* Like R_PPC64_DTPREL16_HA, but no overflow. */
2091 HOWTO (R_PPC64_DTPREL16_HIGHA,
2092 16, /* rightshift */
2093 1, /* size (0 = byte, 1 = short, 2 = long) */
2094 16, /* bitsize */
2095 FALSE, /* pc_relative */
2096 0, /* bitpos */
2097 complain_overflow_dont, /* complain_on_overflow */
2098 ppc64_elf_unhandled_reloc, /* special_function */
2099 "R_PPC64_DTPREL16_HIGHA", /* name */
2100 FALSE, /* partial_inplace */
2101 0, /* src_mask */
2102 0xffff, /* dst_mask */
2103 FALSE), /* pcrel_offset */
2104
2105 /* Like R_PPC64_TPREL16_HI, but no overflow. */
2106 HOWTO (R_PPC64_TPREL16_HIGH,
2107 16, /* rightshift */
2108 1, /* size (0 = byte, 1 = short, 2 = long) */
2109 16, /* bitsize */
2110 FALSE, /* pc_relative */
2111 0, /* bitpos */
2112 complain_overflow_dont, /* complain_on_overflow */
2113 ppc64_elf_unhandled_reloc, /* special_function */
2114 "R_PPC64_TPREL16_HIGH", /* name */
2115 FALSE, /* partial_inplace */
2116 0, /* src_mask */
2117 0xffff, /* dst_mask */
2118 FALSE), /* pcrel_offset */
2119
2120 /* Like R_PPC64_TPREL16_HA, but no overflow. */
2121 HOWTO (R_PPC64_TPREL16_HIGHA,
2122 16, /* rightshift */
2123 1, /* size (0 = byte, 1 = short, 2 = long) */
2124 16, /* bitsize */
2125 FALSE, /* pc_relative */
2126 0, /* bitpos */
2127 complain_overflow_dont, /* complain_on_overflow */
2128 ppc64_elf_unhandled_reloc, /* special_function */
2129 "R_PPC64_TPREL16_HIGHA", /* name */
2130 FALSE, /* partial_inplace */
2131 0, /* src_mask */
2132 0xffff, /* dst_mask */
2133 FALSE), /* pcrel_offset */
2134
006589cf
AM		 2135 /* Marker reloc on ELFv2 large-model function entry. */
2136 HOWTO (R_PPC64_ENTRY,
2137 0, /* rightshift */
2138 2, /* size (0 = byte, 1 = short, 2 = long) */
2139 32, /* bitsize */
2140 FALSE, /* pc_relative */
2141 0, /* bitpos */
2142 complain_overflow_dont, /* complain_on_overflow */
2143 bfd_elf_generic_reloc, /* special_function */
2144 "R_PPC64_ENTRY", /* name */
2145 FALSE, /* partial_inplace */
2146 0, /* src_mask */
2147 0, /* dst_mask */
2148 FALSE), /* pcrel_offset */
2149
45965137
AM		 2150 /* Like ADDR64, but use local entry point of function. */
2151 HOWTO (R_PPC64_ADDR64_LOCAL, /* type */
2152 0, /* rightshift */
2153 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
2154 64, /* bitsize */
2155 FALSE, /* pc_relative */
2156 0, /* bitpos */
2157 complain_overflow_dont, /* complain_on_overflow */
2158 bfd_elf_generic_reloc, /* special_function */
2159 "R_PPC64_ADDR64_LOCAL", /* name */
2160 FALSE, /* partial_inplace */
2161 0, /* src_mask */
2162 ONES (64), /* dst_mask */
2163 FALSE), /* pcrel_offset */
2164
5bd4f169
AM		 2165 /* GNU extension to record C++ vtable hierarchy. */
2166 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
2167 0, /* rightshift */
2168 0, /* size (0 = byte, 1 = short, 2 = long) */
2169 0, /* bitsize */
b34976b6 2170 FALSE, /* pc_relative */
5bd4f169
AM		 2171 0, /* bitpos */
2172 complain_overflow_dont, /* complain_on_overflow */
2173 NULL, /* special_function */
2174 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 2175 FALSE, /* partial_inplace */
5bd4f169
AM		 2176 0, /* src_mask */
2177 0, /* dst_mask */
b34976b6 2178 FALSE), /* pcrel_offset */
5bd4f169
AM		 2179
2180 /* GNU extension to record C++ vtable member usage. */
2181 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
2182 0, /* rightshift */
2183 0, /* size (0 = byte, 1 = short, 2 = long) */
2184 0, /* bitsize */
b34976b6 2185 FALSE, /* pc_relative */
5bd4f169
AM		 2186 0, /* bitpos */
2187 complain_overflow_dont, /* complain_on_overflow */
2188 NULL, /* special_function */
2189 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 2190 FALSE, /* partial_inplace */
5bd4f169
AM		 2191 0, /* src_mask */
2192 0, /* dst_mask */
b34976b6 2193 FALSE), /* pcrel_offset */
5bd4f169
AM		 2194};
2195
2196\f
2197/* Initialize the ppc64_elf_howto_table, so that linear accesses can
2198 be done. */
2199
2200static void
4ce794b7 2201ppc_howto_init (void)
5bd4f169
AM		 2202{
2203 unsigned int i, type;
2204
a4b6fadd 2205 for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++)
5bd4f169
AM		 2206 {
2207 type = ppc64_elf_howto_raw[i].type;
a4b6fadd 2208 BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table));
5bd4f169
AM		 2209 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
2210 }
2211}
2212
2213static reloc_howto_type *
4ce794b7
AM		 2214ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2215 bfd_reloc_code_real_type code)
5bd4f169 2216{
411e1bfb 2217 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 2218
2219 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2220 /* Initialize howto table if needed. */
2221 ppc_howto_init ();
2222
4ce794b7 2223 switch (code)
5bd4f169
AM		 2224 {
2225 default:
4ce794b7 2226 return NULL;
5bd4f169 2227
411e1bfb
AM		 2228 case BFD_RELOC_NONE: r = R_PPC64_NONE;
2229 break;
2230 case BFD_RELOC_32: r = R_PPC64_ADDR32;
2231 break;
2232 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
2233 break;
2234 case BFD_RELOC_16: r = R_PPC64_ADDR16;
2235 break;
2236 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
2237 break;
2238 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
2239 break;
f9c6b907
AM		 2240 case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH;
2241 break;
411e1bfb 2242 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 2243 break;
f9c6b907
AM		 2244 case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA;
2245 break;
411e1bfb 2246 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 2247 break;
411e1bfb 2248 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 2249 break;
411e1bfb 2250 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 2251 break;
411e1bfb 2252 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 2253 break;
411e1bfb 2254 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 2255 break;
411e1bfb 2256 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 2257 break;
411e1bfb 2258 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 2259 break;
411e1bfb 2260 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 2261 break;
411e1bfb 2262 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 2263 break;
411e1bfb 2264 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 2265 break;
411e1bfb 2266 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 2267 break;
411e1bfb 2268 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 2269 break;
411e1bfb 2270 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 2271 break;
411e1bfb 2272 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 2273 break;
411e1bfb 2274 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 2275 break;
411e1bfb 2276 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 2277 break;
411e1bfb 2278 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 2279 break;
411e1bfb 2280 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 2281 break;
411e1bfb 2282 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 2283 break;
411e1bfb 2284 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 2285 break;
411e1bfb 2286 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 2287 break;
411e1bfb 2288 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 2289 break;
411e1bfb 2290 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 2291 break;
411e1bfb 2292 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 2293 break;
411e1bfb 2294 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 2295 break;
411e1bfb 2296 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 2297 break;
411e1bfb 2298 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 2299 break;
411e1bfb 2300 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 2301 break;
411e1bfb 2302 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 2303 break;
411e1bfb 2304 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 2305 break;
411e1bfb 2306 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 2307 break;
411e1bfb 2308 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 2309 break;
411e1bfb 2310 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 2311 break;
411e1bfb 2312 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 2313 break;
411e1bfb 2314 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 2315 break;
411e1bfb 2316 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 2317 break;
411e1bfb 2318 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 2319 break;
411e1bfb 2320 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 2321 break;
411e1bfb 2322 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 2323 break;
411e1bfb 2324 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 2325 break;
411e1bfb 2326 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 2327 break;
411e1bfb 2328 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 2329 break;
411e1bfb 2330 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 2331 break;
411e1bfb 2332 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 2333 break;
411e1bfb 2334 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 2335 break;
411e1bfb 2336 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 2337 break;
411e1bfb 2338 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2339 break;
411e1bfb 2340 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2341 break;
411e1bfb 2342 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2343 break;
411e1bfb 2344 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2345 break;
411e1bfb 2346 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2347 break;
411e1bfb 2348 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2349 break;
411e1bfb 2350 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2351 break;
727fc41e
AM		 2352 case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD;
2353 break;
2354 case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD;
2355 break;
411e1bfb 2356 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2357 break;
411e1bfb 2358 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2359 break;
411e1bfb 2360 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2361 break;
411e1bfb 2362 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2363 break;
f9c6b907
AM		 2364 case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH;
2365 break;
411e1bfb 2366 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2367 break;
f9c6b907
AM		 2368 case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA;
2369 break;
411e1bfb 2370 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2371 break;
411e1bfb
AM		 2372 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2373 break;
2374 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2375 break;
2376 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2377 break;
f9c6b907
AM		 2378 case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH;
2379 break;
411e1bfb
AM		 2380 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2381 break;
f9c6b907
AM		 2382 case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA;
2383 break;
411e1bfb
AM		 2384 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2385 break;
2386 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2387 break;
2388 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2389 break;
2390 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2391 break;
2392 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2393 break;
2394 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2395 break;
2396 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2397 break;
2398 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2399 break;
2400 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2401 break;
2402 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2403 break;
2404 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2405 break;
2406 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2407 break;
2408 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2409 break;
2410 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2411 break;
2412 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2413 break;
2414 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2415 break;
2416 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2417 break;
2418 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2419 break;
2420 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2421 break;
2422 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2423 break;
2424 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2425 break;
2426 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2427 break;
2428 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2429 break;
2430 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2431 break;
2432 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2433 break;
2434 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2435 break;
2436 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2437 break;
2438 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2439 break;
2440 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2441 break;
25f23106
AM		 2442 case BFD_RELOC_16_PCREL: r = R_PPC64_REL16;
2443 break;
2444 case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO;
2445 break;
2446 case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI;
2447 break;
2448 case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA;
2449 break;
a680de9a
PB		 2450 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA;
2451 break;
006589cf
AM		 2452 case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY;
2453 break;
45965137
AM		 2454 case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL;
2455 break;
411e1bfb
AM		 2456 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2457 break;
2458 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2459 break;
2460 }
2461
4ce794b7 2462 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2463};
2464
157090f7
AM		 2465static reloc_howto_type *
2466ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2467 const char *r_name)
2468{
2469 unsigned int i;
2470
a4b6fadd 2471 for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++)
157090f7
AM		 2472 if (ppc64_elf_howto_raw[i].name != NULL
2473 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2474 return &ppc64_elf_howto_raw[i];
2475
2476 return NULL;
2477}
2478
5bd4f169
AM		 2479/* Set the howto pointer for a PowerPC ELF reloc. */
2480
2481static void
4ce794b7
AM		 2482ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2483 Elf_Internal_Rela *dst)
5bd4f169 2484{
65f38f15
AM		 2485 unsigned int type;
2486
ef60b7ff 2487 /* Initialize howto table if needed. */
5bd4f169 2488 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2489 ppc_howto_init ();
2490
65f38f15 2491 type = ELF64_R_TYPE (dst->r_info);
a4b6fadd 2492 if (type >= ARRAY_SIZE (ppc64_elf_howto_table))
d0fb9a8d 2493 {
695344c0 2494 /* xgettext:c-format */
4eca0228
AM		 2495 _bfd_error_handler (_("%B: invalid relocation type %d"),
2496 abfd, (int) type);
3ec2b351 2497 type = R_PPC64_NONE;
d0fb9a8d 2498 }
65f38f15 2499 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2500}
2501
04c9666a 2502/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2503
2504static bfd_reloc_status_type
4ce794b7
AM		 2505ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2506 void *data, asection *input_section,
2507 bfd *output_bfd, char **error_message)
5bd4f169 2508{
a680de9a
PB		 2509 enum elf_ppc64_reloc_type r_type;
2510 long insn;
2511 bfd_size_type octets;
2512 bfd_vma value;
2513
805fc799
AM		 2514 /* If this is a relocatable link (output_bfd test tells us), just
2515 call the generic function. Any adjustment will be done at final
2516 link time. */
2517 if (output_bfd != NULL)
cedb70c5 2518 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2519 input_section, output_bfd, error_message);
2520
2521 /* Adjust the addend for sign extension of the low 16 bits.
2522 We won't actually be using the low 16 bits, so trashing them
2523 doesn't matter. */
2524 reloc_entry->addend += 0x8000;
a680de9a
PB		 2525 r_type = reloc_entry->howto->type;
2526 if (r_type != R_PPC64_REL16DX_HA)
2527 return bfd_reloc_continue;
2528
2529 value = 0;
2530 if (!bfd_is_com_section (symbol->section))
2531 value = symbol->value;
2532 value += (reloc_entry->addend
2533 + symbol->section->output_offset
2534 + symbol->section->output_section->vma);
2535 value -= (reloc_entry->address
2536 + input_section->output_offset
2537 + input_section->output_section->vma);
2538 value = (bfd_signed_vma) value >> 16;
2539
2540 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2541 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2542 insn &= ~0x1fffc1;
2543 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2544 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2545 if (value + 0x8000 > 0xffff)
2546 return bfd_reloc_overflow;
2547 return bfd_reloc_ok;
805fc799 2548}
5bd4f169 2549
2441e016
AM		 2550static bfd_reloc_status_type
2551ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2552 void *data, asection *input_section,
2553 bfd *output_bfd, char **error_message)
2554{
2555 if (output_bfd != NULL)
2556 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2557 input_section, output_bfd, error_message);
2558
699733f6
AM		 2559 if (strcmp (symbol->section->name, ".opd") == 0
2560 && (symbol->section->owner->flags & DYNAMIC) == 0)
2441e016
AM		 2561 {
2562 bfd_vma dest = opd_entry_value (symbol->section,
2563 symbol->value + reloc_entry->addend,
aef36ac1 2564 NULL, NULL, FALSE);
2441e016
AM		 2565 if (dest != (bfd_vma) -1)
2566 reloc_entry->addend = dest - (symbol->value
2567 + symbol->section->output_section->vma
2568 + symbol->section->output_offset);
2569 }
810d4e75
AM		 2570 else
2571 {
2572 elf_symbol_type *elfsym = (elf_symbol_type *) symbol;
2573
2574 if (symbol->section->owner != abfd
9f284bf9 2575 && symbol->section->owner != NULL
810d4e75
AM		 2576 && abiversion (symbol->section->owner) >= 2)
2577 {
2578 unsigned int i;
2579
2580 for (i = 0; i < symbol->section->owner->symcount; ++i)
2581 {
2582 asymbol *symdef = symbol->section->owner->outsymbols[i];
2583
2584 if (strcmp (symdef->name, symbol->name) == 0)
2585 {
2586 elfsym = (elf_symbol_type *) symdef;
2587 break;
2588 }
2589 }
2590 }
2591 reloc_entry->addend
2592 += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other);
2593 }
2441e016
AM		 2594 return bfd_reloc_continue;
2595}
2596
805fc799 2597static bfd_reloc_status_type
4ce794b7
AM		 2598ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2599 void *data, asection *input_section,
2600 bfd *output_bfd, char **error_message)
805fc799
AM		 2601{
2602 long insn;
04c9666a 2603 enum elf_ppc64_reloc_type r_type;
805fc799 2604 bfd_size_type octets;
794e51c0
AM		 2605 /* Assume 'at' branch hints. */
2606 bfd_boolean is_isa_v2 = TRUE;
805fc799
AM		 2607
2608 /* If this is a relocatable link (output_bfd test tells us), just
2609 call the generic function. Any adjustment will be done at final
2610 link time. */
5bd4f169 2611 if (output_bfd != NULL)
cedb70c5 2612 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2613 input_section, output_bfd, error_message);
2614
2615 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2616 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2617 insn &= ~(0x01 << 21);
4ce794b7 2618 r_type = reloc_entry->howto->type;
805fc799
AM		 2619 if (r_type == R_PPC64_ADDR14_BRTAKEN
2620 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2621 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799 2622
794e51c0 2623 if (is_isa_v2)
5bd4f169 2624 {
805fc799
AM		 2625 /* Set 'a' bit. This is 0b00010 in BO field for branch
2626 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2627 for branch on CTR insns (BO == 1a00t or 1a01t). */
2628 if ((insn & (0x14 << 21)) == (0x04 << 21))
2629 insn |= 0x02 << 21;
2630 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2631 insn |= 0x08 << 21;
2632 else
2441e016 2633 goto out;
5bd4f169 2634 }
805fc799
AM		 2635 else
2636 {
2637 bfd_vma target = 0;
2638 bfd_vma from;
5bd4f169 2639
805fc799
AM		 2640 if (!bfd_is_com_section (symbol->section))
2641 target = symbol->value;
2642 target += symbol->section->output_section->vma;
2643 target += symbol->section->output_offset;
2644 target += reloc_entry->addend;
5bd4f169 2645
805fc799
AM		 2646 from = (reloc_entry->address
2647 + input_section->output_offset
2648 + input_section->output_section->vma);
5bd4f169 2649
805fc799
AM		 2650 /* Invert 'y' bit if not the default. */
2651 if ((bfd_signed_vma) (target - from) < 0)
2652 insn ^= 0x01 << 21;
2653 }
4ce794b7 2654 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM		 2655 out:
2656 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2657 input_section, output_bfd, error_message);
805fc799 2658}
5bd4f169 2659
805fc799 2660static bfd_reloc_status_type
4ce794b7
AM		 2661ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2662 void *data, asection *input_section,
2663 bfd *output_bfd, char **error_message)
805fc799
AM		 2664{
2665 /* If this is a relocatable link (output_bfd test tells us), just
2666 call the generic function. Any adjustment will be done at final
2667 link time. */
2668 if (output_bfd != NULL)
cedb70c5 2669 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2670 input_section, output_bfd, error_message);
5bd4f169 2671
805fc799
AM		 2672 /* Subtract the symbol section base address. */
2673 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2674 return bfd_reloc_continue;
2675}
2676
805fc799 2677static bfd_reloc_status_type
4ce794b7
AM		 2678ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2679 void *data, asection *input_section,
2680 bfd *output_bfd, char **error_message)
805fc799
AM		 2681{
2682 /* If this is a relocatable link (output_bfd test tells us), just
2683 call the generic function. Any adjustment will be done at final
2684 link time. */
2685 if (output_bfd != NULL)
cedb70c5 2686 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2687 input_section, output_bfd, error_message);
2688
2689 /* Subtract the symbol section base address. */
2690 reloc_entry->addend -= symbol->section->output_section->vma;
2691
2692 /* Adjust the addend for sign extension of the low 16 bits. */
2693 reloc_entry->addend += 0x8000;
2694 return bfd_reloc_continue;
2695}
2696
2697static bfd_reloc_status_type
4ce794b7
AM		 2698ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2699 void *data, asection *input_section,
2700 bfd *output_bfd, char **error_message)
805fc799
AM		 2701{
2702 bfd_vma TOCstart;
2703
2704 /* If this is a relocatable link (output_bfd test tells us), just
2705 call the generic function. Any adjustment will be done at final
2706 link time. */
2707 if (output_bfd != NULL)
cedb70c5 2708 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2709 input_section, output_bfd, error_message);
2710
2711 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2712 if (TOCstart == 0)
1c865ab2 2713 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2714
2715 /* Subtract the TOC base address. */
2716 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2717 return bfd_reloc_continue;
2718}
2719
2720static bfd_reloc_status_type
4ce794b7
AM		 2721ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2722 void *data, asection *input_section,
2723 bfd *output_bfd, char **error_message)
805fc799
AM		 2724{
2725 bfd_vma TOCstart;
2726
2727 /* If this is a relocatable link (output_bfd test tells us), just
2728 call the generic function. Any adjustment will be done at final
2729 link time. */
2730 if (output_bfd != NULL)
cedb70c5 2731 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2732 input_section, output_bfd, error_message);
2733
2734 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2735 if (TOCstart == 0)
1c865ab2 2736 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2737
2738 /* Subtract the TOC base address. */
2739 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2740
2741 /* Adjust the addend for sign extension of the low 16 bits. */
2742 reloc_entry->addend += 0x8000;
2743 return bfd_reloc_continue;
2744}
2745
2746static bfd_reloc_status_type
4ce794b7
AM		 2747ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2748 void *data, asection *input_section,
2749 bfd *output_bfd, char **error_message)
805fc799
AM		 2750{
2751 bfd_vma TOCstart;
2752 bfd_size_type octets;
2753
2754 /* If this is a relocatable link (output_bfd test tells us), just
2755 call the generic function. Any adjustment will be done at final
2756 link time. */
2757 if (output_bfd != NULL)
cedb70c5 2758 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2759 input_section, output_bfd, error_message);
2760
2761 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2762 if (TOCstart == 0)
1c865ab2 2763 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2764
2765 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2766 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2767 return bfd_reloc_ok;
2768}
2769
2770static bfd_reloc_status_type
4ce794b7
AM		 2771ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2772 void *data, asection *input_section,
2773 bfd *output_bfd, char **error_message)
805fc799
AM		 2774{
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
2777 link time. */
2778 if (output_bfd != NULL)
cedb70c5 2779 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2780 input_section, output_bfd, error_message);
2781
2782 if (error_message != NULL)
2783 {
2784 static char buf[60];
2785 sprintf (buf, "generic linker can't handle %s",
2786 reloc_entry->howto->name);
2787 *error_message = buf;
2788 }
2789 return bfd_reloc_dangerous;
2790}
2791
927be08e
AM		 2792/* Track GOT entries needed for a given symbol. We might need more
2793 than one got entry per symbol. */
2794struct got_entry
2795{
2796 struct got_entry *next;
2797
2798 /* The symbol addend that we'll be placing in the GOT. */
2799 bfd_vma addend;
2800
2801 /* Unlike other ELF targets, we use separate GOT entries for the same
2802 symbol referenced from different input files. This is to support
2803 automatic multiple TOC/GOT sections, where the TOC base can vary
2804 from one input file to another. After partitioning into TOC groups
2805 we merge entries within the group.
2806
2807 Point to the BFD owning this GOT entry. */
2808 bfd *owner;
2809
2810 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2811 TLS_TPREL or TLS_DTPREL for tls entries. */
f961d9dd 2812 unsigned char tls_type;
927be08e
AM		 2813
2814 /* Non-zero if got.ent points to real entry. */
f961d9dd 2815 unsigned char is_indirect;
927be08e
AM		 2816
2817 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2818 union
2819 {
2820 bfd_signed_vma refcount;
2821 bfd_vma offset;
2822 struct got_entry *ent;
2823 } got;
2824};
2825
2826/* The same for PLT. */
2827struct plt_entry
2828{
2829 struct plt_entry *next;
2830
2831 bfd_vma addend;
2832
2833 union
2834 {
2835 bfd_signed_vma refcount;
2836 bfd_vma offset;
2837 } plt;
2838};
2839
e717da7e
AM		 2840struct ppc64_elf_obj_tdata
2841{
2842 struct elf_obj_tdata elf;
2843
2844 /* Shortcuts to dynamic linker sections. */
2845 asection *got;
2846 asection *relgot;
2847
b3fac117
AM		 2848 /* Used during garbage collection. We attach global symbols defined
2849 on removed .opd entries to this section so that the sym is removed. */
2850 asection *deleted_section;
81688140 2851
927be08e 2852 /* TLS local dynamic got entry handling. Support for multiple GOT
e717da7e 2853 sections means we potentially need one of these for each input bfd. */
927be08e 2854 struct got_entry tlsld_got;
8860955f 2855
729eabd5
AM		 2856 union {
2857 /* A copy of relocs before they are modified for --emit-relocs. */
2858 Elf_Internal_Rela *relocs;
2859
2860 /* Section contents. */
2861 bfd_byte *contents;
2862 } opd;
d77c8a4b
AM		 2863
2864 /* Nonzero if this bfd has small toc/got relocs, ie. that expect
2865 the reloc to be in the range -32768 to 32767. */
98528052
AM		 2866 unsigned int has_small_toc_reloc : 1;
2867
560c8763
AM		 2868 /* Set if toc/got ha relocs detected not using r2, or lo reloc
2869 instruction not one we handle. */
2870 unsigned int unexpected_toc_insn : 1;
e717da7e
AM		 2871};
2872
2873#define ppc64_elf_tdata(bfd) \
2874 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2875
2876#define ppc64_tlsld_got(bfd) \
2877 (&ppc64_elf_tdata (bfd)->tlsld_got)
2878
0c8d6e5c
AM		 2879#define is_ppc64_elf(bfd) \
2880 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2881 && elf_object_id (bfd) == PPC64_ELF_DATA)
0c8d6e5c 2882
e717da7e
AM		 2883/* Override the generic function because we store some extras. */
2884
2885static bfd_boolean
2886ppc64_elf_mkobject (bfd *abfd)
2887{
0ffa91dd 2888 return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata),
4dfe6ac6 2889 PPC64_ELF_DATA);
e717da7e
AM		 2890}
2891
feee612b 2892/* Fix bad default arch selected for a 64 bit input bfd when the
14b57c7c 2893 default is 32 bit. Also select arch based on apuinfo. */
feee612b 2894
b34976b6 2895static bfd_boolean
4ce794b7 2896ppc64_elf_object_p (bfd *abfd)
feee612b 2897{
14b57c7c
AM		 2898 if (!abfd->arch_info->the_default)
2899 return TRUE;
2900
2901 if (abfd->arch_info->bits_per_word == 32)
feee612b
AM		 2902 {
2903 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2904
2905 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2906 {
2907 /* Relies on arch after 32 bit default being 64 bit default. */
2908 abfd->arch_info = abfd->arch_info->next;
2909 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2910 }
2911 }
14b57c7c 2912 return _bfd_elf_ppc_set_arch (abfd);
feee612b
AM		 2913}
2914
d37c89e5
AM		 2915/* Support for core dump NOTE sections. */
2916
2917static bfd_boolean
2918ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2919{
eea6121a 2920 size_t offset, size;
d37c89e5
AM		 2921
2922 if (note->descsz != 504)
2923 return FALSE;
2924
2925 /* pr_cursig */
228e534f 2926 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
d37c89e5
AM		 2927
2928 /* pr_pid */
228e534f 2929 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32);
d37c89e5
AM		 2930
2931 /* pr_reg */
2932 offset = 112;
eea6121a 2933 size = 384;
d37c89e5
AM		 2934
2935 /* Make a ".reg/999" section. */
2936 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2937 size, note->descpos + offset);
d37c89e5
AM		 2938}
2939
2940static bfd_boolean
2941ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2942{
2943 if (note->descsz != 136)
2944 return FALSE;
2945
228e534f 2946 elf_tdata (abfd)->core->pid
bc989cdc 2947 = bfd_get_32 (abfd, note->descdata + 24);
228e534f 2948 elf_tdata (abfd)->core->program
d37c89e5 2949 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
228e534f 2950 elf_tdata (abfd)->core->command
d37c89e5
AM		 2951 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2952
2953 return TRUE;
2954}
2955
183e98be
AM		 2956static char *
2957ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2958 ...)
2959{
2960 switch (note_type)
2961 {
2962 default:
2963 return NULL;
2964
2965 case NT_PRPSINFO:
2966 {
2967 char data[136];
2968 va_list ap;
2969
2970 va_start (ap, note_type);
75cd47ed 2971 memset (data, 0, sizeof (data));
183e98be
AM		 2972 strncpy (data + 40, va_arg (ap, const char *), 16);
2973 strncpy (data + 56, va_arg (ap, const char *), 80);
2974 va_end (ap);
2975 return elfcore_write_note (abfd, buf, bufsiz,
2976 "CORE", note_type, data, sizeof (data));
2977 }
2978
2979 case NT_PRSTATUS:
2980 {
2981 char data[504];
2982 va_list ap;
2983 long pid;
2984 int cursig;
2985 const void *greg;
2986
2987 va_start (ap, note_type);
2988 memset (data, 0, 112);
2989 pid = va_arg (ap, long);
2990 bfd_put_32 (abfd, pid, data + 32);
2991 cursig = va_arg (ap, int);
2992 bfd_put_16 (abfd, cursig, data + 12);
2993 greg = va_arg (ap, const void *);
2994 memcpy (data + 112, greg, 384);
2995 memset (data + 496, 0, 8);
2996 va_end (ap);
2997 return elfcore_write_note (abfd, buf, bufsiz,
2998 "CORE", note_type, data, sizeof (data));
2999 }
3000 }
3001}
3002
5d35169e
AM		 3003/* Add extra PPC sections. */
3004
b35d266b 3005static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
7f4d3958 3006{
0112cd26
NC		 3007 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
3008 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3009 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3010 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3011 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3012 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3013 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 3014};
3015
7c8fe5c4
AM		 3016enum _ppc64_sec_type {
3017 sec_normal = 0,
3018 sec_opd = 1,
3019 sec_toc = 2
3020};
3021
f0abc2a1
AM		 3022struct _ppc64_elf_section_data
3023{
3024 struct bfd_elf_section_data elf;
411e1bfb 3025
f0abc2a1
AM		 3026 union
3027 {
51aecdc5
AM		 3028 /* An array with one entry for each opd function descriptor,
3029 and some spares since opd entries may be either 16 or 24 bytes. */
3030#define OPD_NDX(OFF) ((OFF) >> 4)
74f0fb50
AM		 3031 struct _opd_sec_data
3032 {
3033 /* Points to the function code section for local opd entries. */
3034 asection **func_sec;
3035
3036 /* After editing .opd, adjust references to opd local syms. */
3037 long *adjust;
3038 } opd;
7c8fe5c4 3039
3a71aa26
AM		 3040 /* An array for toc sections, indexed by offset/8. */
3041 struct _toc_sec_data
3042 {
3043 /* Specifies the relocation symbol index used at a given toc offset. */
3044 unsigned *symndx;
3045
3046 /* And the relocation addend. */
3047 bfd_vma *add;
3048 } toc;
7c8fe5c4
AM		 3049 } u;
3050
3051 enum _ppc64_sec_type sec_type:2;
411e1bfb 3052
7c8fe5c4
AM		 3053 /* Flag set when small branches are detected. Used to
3054 select suitable defaults for the stub group size. */
3055 unsigned int has_14bit_branch:1;
f0abc2a1
AM		 3056};
3057
3058#define ppc64_elf_section_data(sec) \
411e1bfb 3059 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 3060
3061static bfd_boolean
4ce794b7 3062ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1 3063{
f592407e
AM		 3064 if (!sec->used_by_bfd)
3065 {
3066 struct _ppc64_elf_section_data *sdata;
3067 bfd_size_type amt = sizeof (*sdata);
f0abc2a1 3068
f592407e
AM		 3069 sdata = bfd_zalloc (abfd, amt);
3070 if (sdata == NULL)
3071 return FALSE;
3072 sec->used_by_bfd = sdata;
3073 }
f0abc2a1
AM		 3074
3075 return _bfd_elf_new_section_hook (abfd, sec);
3076}
4025353c 3077
74f0fb50 3078static struct _opd_sec_data *
4025353c
AM		 3079get_opd_info (asection * sec)
3080{
3081 if (sec != NULL
3082 && ppc64_elf_section_data (sec) != NULL
7c8fe5c4 3083 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
74f0fb50 3084 return &ppc64_elf_section_data (sec)->u.opd;
4025353c
AM		 3085 return NULL;
3086}
90e3cdf2
JJ		 3087\f
3088/* Parameters for the qsort hook. */
90e3cdf2 3089static bfd_boolean synthetic_relocatable;
cd285db5 3090static asection *synthetic_opd;
90e3cdf2 3091
699733f6 3092/* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
90e3cdf2
JJ		 3093
3094static int
3095compare_symbols (const void *ap, const void *bp)
3096{
3097 const asymbol *a = * (const asymbol **) ap;
3098 const asymbol *b = * (const asymbol **) bp;
3099
699733f6
AM		 3100 /* Section symbols first. */
3101 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
90e3cdf2 3102 return -1;
699733f6 3103 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
90e3cdf2
JJ		 3104 return 1;
3105
699733f6 3106 /* then .opd symbols. */
cd285db5
AM		 3107 if (synthetic_opd != NULL)
3108 {
3109 if (strcmp (a->section->name, ".opd") == 0
3110 && strcmp (b->section->name, ".opd") != 0)
3111 return -1;
3112 if (strcmp (a->section->name, ".opd") != 0
3113 && strcmp (b->section->name, ".opd") == 0)
3114 return 1;
3115 }
90e3cdf2 3116
699733f6 3117 /* then other code symbols. */
90e3cdf2
JJ		 3118 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3119 == (SEC_CODE | SEC_ALLOC)
3120 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3121 != (SEC_CODE | SEC_ALLOC))
3122 return -1;
3123
3124 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3125 != (SEC_CODE | SEC_ALLOC)
3126 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3127 == (SEC_CODE | SEC_ALLOC))
3128 return 1;
3129
3130 if (synthetic_relocatable)
3131 {
3132 if (a->section->id < b->section->id)
3133 return -1;
3134
3135 if (a->section->id > b->section->id)
3136 return 1;
3137 }
3138
3139 if (a->value + a->section->vma < b->value + b->section->vma)
3140 return -1;
3141
3142 if (a->value + a->section->vma > b->value + b->section->vma)
3143 return 1;
3144
4d35a0aa
AM		 3145 /* For syms with the same value, prefer strong dynamic global function
3146 syms over other syms. */
3147 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
3148 return -1;
3149
3150 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
3151 return 1;
3152
3153 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
3154 return -1;
3155
3156 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
3157 return 1;
3158
3159 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
3160 return -1;
3161
3162 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
3163 return 1;
3164
3165 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
3166 return -1;
3167
3168 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
3169 return 1;
3170
90e3cdf2
JJ		 3171 return 0;
3172}
3173
699733f6 3174/* Search SYMS for a symbol of the given VALUE. */
90e3cdf2 3175
699733f6 3176static asymbol *
7292b3ac 3177sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value)
90e3cdf2 3178{
699733f6 3179 long mid;
90e3cdf2 3180
7292b3ac 3181 if (id == (unsigned) -1)
699733f6
AM		 3182 {
3183 while (lo < hi)
3184 {
3185 mid = (lo + hi) >> 1;
3186 if (syms[mid]->value + syms[mid]->section->vma < value)
3187 lo = mid + 1;
3188 else if (syms[mid]->value + syms[mid]->section->vma > value)
3189 hi = mid;
3190 else
3191 return syms[mid];
3192 }
3193 }
3194 else
3195 {
3196 while (lo < hi)
3197 {
3198 mid = (lo + hi) >> 1;
3199 if (syms[mid]->section->id < id)
3200 lo = mid + 1;
3201 else if (syms[mid]->section->id > id)
3202 hi = mid;
3203 else if (syms[mid]->value < value)
3204 lo = mid + 1;
3205 else if (syms[mid]->value > value)
3206 hi = mid;
3207 else
3208 return syms[mid];
3209 }
3210 }
3211 return NULL;
90e3cdf2
JJ		 3212}
3213
468392fb
AM		 3214static bfd_boolean
3215section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
3216{
3217 bfd_vma vma = *(bfd_vma *) ptr;
3218 return ((section->flags & SEC_ALLOC) != 0
3219 && section->vma <= vma
3220 && vma < section->vma + section->size);
3221}
3222
699733f6 3223/* Create synthetic symbols, effectively restoring "dot-symbol" function
c4b0b099
AM		 3224 entry syms. Also generate @plt symbols for the glink branch table.
3225 Returns count of synthetic symbols in RET or -1 on error. */
90e3cdf2
JJ		 3226
3227static long
a7535cf3
AM		 3228ppc64_elf_get_synthetic_symtab (bfd *abfd,
3229 long static_count, asymbol **static_syms,
3230 long dyn_count, asymbol **dyn_syms,
c9727e01 3231 asymbol **ret)
90e3cdf2
JJ		 3232{
3233 asymbol *s;
699733f6
AM		 3234 long i;
3235 long count;
90e3cdf2 3236 char *names;
a7535cf3 3237 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
ee67d69a 3238 asection *opd = NULL;
90e3cdf2 3239 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
a7535cf3 3240 asymbol **syms;
ee67d69a 3241 int abi = abiversion (abfd);
90e3cdf2
JJ		 3242
3243 *ret = NULL;
3244
ee67d69a
AM		 3245 if (abi < 2)
3246 {
3247 opd = bfd_get_section_by_name (abfd, ".opd");
3248 if (opd == NULL && abi == 1)
3249 return 0;
3250 }
90e3cdf2 3251
a7535cf3 3252 symcount = static_count;
c9727e01 3253 if (!relocatable)
a7535cf3 3254 symcount += dyn_count;
90e3cdf2 3255 if (symcount == 0)
c9727e01 3256 return 0;
90e3cdf2 3257
a7535cf3
AM		 3258 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
3259 if (syms == NULL)
7356fed5 3260 return -1;
a7535cf3
AM		 3261
3262 if (!relocatable && static_count != 0 && dyn_count != 0)
3263 {
3264 /* Use both symbol tables. */
3265 memcpy (syms, static_syms, static_count * sizeof (*syms));
3266 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
3267 }
3268 else if (!relocatable && static_count == 0)
3269 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
3270 else
3271 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
3272
90e3cdf2 3273 synthetic_relocatable = relocatable;
cd285db5 3274 synthetic_opd = opd;
595da8c5 3275 qsort (syms, symcount, sizeof (*syms), compare_symbols);
90e3cdf2 3276
c9727e01
AM		 3277 if (!relocatable && symcount > 1)
3278 {
3279 long j;
3280 /* Trim duplicate syms, since we may have merged the normal and
3281 dynamic symbols. Actually, we only care about syms that have
3b36f7e6 3282 different values, so trim any with the same value. */
c9727e01
AM		 3283 for (i = 1, j = 1; i < symcount; ++i)
3284 if (syms[i - 1]->value + syms[i - 1]->section->vma
3285 != syms[i]->value + syms[i]->section->vma)
3286 syms[j++] = syms[i];
3287 symcount = j;
3288 }
3289
699733f6 3290 i = 0;
cd285db5
AM		 3291 /* Note that here and in compare_symbols we can't compare opd and
3292 sym->section directly. With separate debug info files, the
3293 symbols will be extracted from the debug file while abfd passed
3294 to this function is the real binary. */
3295 if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0)
699733f6
AM		 3296 ++i;
3297 codesecsym = i;
90e3cdf2 3298
699733f6
AM		 3299 for (; i < symcount; ++i)
3300 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3301 != (SEC_CODE | SEC_ALLOC))
3302 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
3303 break;
3304 codesecsymend = i;
90e3cdf2 3305
699733f6
AM		 3306 for (; i < symcount; ++i)
3307 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
3308 break;
3309 secsymend = i;
90e3cdf2 3310
cd285db5
AM		 3311 if (opd != NULL)
3312 for (; i < symcount; ++i)
3313 if (strcmp (syms[i]->section->name, ".opd") != 0)
3314 break;
699733f6 3315 opdsymend = i;
90e3cdf2 3316
699733f6
AM		 3317 for (; i < symcount; ++i)
3318 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3319 != (SEC_CODE | SEC_ALLOC))
3320 break;
3321 symcount = i;
3322
c9727e01 3323 count = 0;
90e3cdf2 3324
699733f6 3325 if (relocatable)
90e3cdf2 3326 {
699733f6
AM		 3327 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3328 arelent *r;
3329 size_t size;
3330 long relcount;
90e3cdf2 3331
468392fb
AM		 3332 if (opdsymend == secsymend)
3333 goto done;
3334
699733f6 3335 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
90e3cdf2 3336 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
7356fed5 3337 if (relcount == 0)
c9727e01 3338 goto done;
90e3cdf2 3339
7356fed5
AM		 3340 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
3341 {
3342 count = -1;
3343 goto done;
3344 }
3345
699733f6 3346 size = 0;
595da8c5 3347 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
699733f6
AM		 3348 {
3349 asymbol *sym;
90e3cdf2 3350
595da8c5 3351 while (r < opd->relocation + relcount
699733f6
AM		 3352 && r->address < syms[i]->value + opd->vma)
3353 ++r;
90e3cdf2 3354
595da8c5 3355 if (r == opd->relocation + relcount)
699733f6 3356 break;
90e3cdf2 3357
699733f6
AM		 3358 if (r->address != syms[i]->value + opd->vma)
3359 continue;
90e3cdf2 3360
699733f6
AM		 3361 if (r->howto->type != R_PPC64_ADDR64)
3362 continue;
90e3cdf2 3363
699733f6
AM		 3364 sym = *r->sym_ptr_ptr;
3365 if (!sym_exists_at (syms, opdsymend, symcount,
3366 sym->section->id, sym->value + r->addend))
3367 {
3368 ++count;
3369 size += sizeof (asymbol);
3370 size += strlen (syms[i]->name) + 2;
3371 }
3372 }
90e3cdf2 3373
c4b0b099
AM		 3374 if (size == 0)
3375 goto done;
699733f6
AM		 3376 s = *ret = bfd_malloc (size);
3377 if (s == NULL)
3378 {
7356fed5 3379 count = -1;
c9727e01 3380 goto done;
699733f6 3381 }
90e3cdf2 3382
699733f6 3383 names = (char *) (s + count);
90e3cdf2 3384
595da8c5 3385 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
90e3cdf2 3386 {
699733f6 3387 asymbol *sym;
90e3cdf2 3388
595da8c5 3389 while (r < opd->relocation + relcount
699733f6
AM		 3390 && r->address < syms[i]->value + opd->vma)
3391 ++r;
90e3cdf2 3392
595da8c5 3393 if (r == opd->relocation + relcount)
699733f6
AM		 3394 break;
3395
3396 if (r->address != syms[i]->value + opd->vma)
3397 continue;
3398
3399 if (r->howto->type != R_PPC64_ADDR64)
3400 continue;
90e3cdf2 3401
699733f6
AM		 3402 sym = *r->sym_ptr_ptr;
3403 if (!sym_exists_at (syms, opdsymend, symcount,
3404 sym->section->id, sym->value + r->addend))
3405 {
3406 size_t len;
3407
3408 *s = *syms[i];
6ba2a415 3409 s->flags |= BSF_SYNTHETIC;
699733f6
AM		 3410 s->section = sym->section;
3411 s->value = sym->value + r->addend;
3412 s->name = names;
3413 *names++ = '.';
3414 len = strlen (syms[i]->name);
3415 memcpy (names, syms[i]->name, len + 1);
3416 names += len + 1;
6f610d07
UW		 3417 /* Have udata.p point back to the original symbol this
3418 synthetic symbol was derived from. */
3419 s->udata.p = syms[i];
699733f6
AM		 3420 s++;
3421 }
3422 }
3423 }
3424 else
90e3cdf2 3425 {
468392fb 3426 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
ee67d69a 3427 bfd_byte *contents = NULL;
699733f6 3428 size_t size;
468392fb
AM		 3429 long plt_count = 0;
3430 bfd_vma glink_vma = 0, resolv_vma = 0;
3431 asection *dynamic, *glink = NULL, *relplt = NULL;
3432 arelent *p;
90e3cdf2 3433
ee67d69a 3434 if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents))
699733f6 3435 {
c4b0b099
AM		 3436 free_contents_and_exit_err:
3437 count = -1;
ee67d69a 3438 free_contents_and_exit:
699733f6 3439 if (contents)
ee67d69a 3440 free (contents);
c9727e01 3441 goto done;
699733f6 3442 }
90e3cdf2 3443
699733f6
AM		 3444 size = 0;
3445 for (i = secsymend; i < opdsymend; ++i)
3446 {
3447 bfd_vma ent;
90e3cdf2 3448
5ef11c02
AM		 3449 /* Ignore bogus symbols. */
3450 if (syms[i]->value > opd->size - 8)
3451 continue;
3452
699733f6
AM		 3453 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3454 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3455 {
3456 ++count;
3457 size += sizeof (asymbol);
3458 size += strlen (syms[i]->name) + 2;
3459 }
3460 }
90e3cdf2 3461
468392fb 3462 /* Get start of .glink stubs from DT_PPC64_GLINK. */
066ee829
AM		 3463 if (dyn_count != 0
3464 && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL)
468392fb
AM		 3465 {
3466 bfd_byte *dynbuf, *extdyn, *extdynend;
3467 size_t extdynsize;
3468 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
3469
3470 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
c4b0b099 3471 goto free_contents_and_exit_err;
468392fb
AM		 3472
3473 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
3474 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
3475
3476 extdyn = dynbuf;
3477 extdynend = extdyn + dynamic->size;
3478 for (; extdyn < extdynend; extdyn += extdynsize)
3479 {
3480 Elf_Internal_Dyn dyn;
3481 (*swap_dyn_in) (abfd, extdyn, &dyn);
3482
3483 if (dyn.d_tag == DT_NULL)
3484 break;
3485
3486 if (dyn.d_tag == DT_PPC64_GLINK)
3487 {
b9e5796b
AM		 3488 /* The first glink stub starts at offset 32; see
3489 comment in ppc64_elf_finish_dynamic_sections. */
3490 glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4;
468392fb
AM		 3491 /* The .glink section usually does not survive the final
3492 link; search for the section (usually .text) where the
3493 glink stubs now reside. */
3494 glink = bfd_sections_find_if (abfd, section_covers_vma,
3495 &glink_vma);
3496 break;
3497 }
3498 }
3499
3500 free (dynbuf);
3501 }
3502
3503 if (glink != NULL)
3504 {
3505 /* Determine __glink trampoline by reading the relative branch
3506 from the first glink stub. */
3507 bfd_byte buf[4];
b9e5796b
AM		 3508 unsigned int off = 0;
3509
3510 while (bfd_get_section_contents (abfd, glink, buf,
3511 glink_vma + off - glink->vma, 4))
468392fb
AM		 3512 {
3513 unsigned int insn = bfd_get_32 (abfd, buf);
3514 insn ^= B_DOT;
3515 if ((insn & ~0x3fffffc) == 0)
b9e5796b
AM		 3516 {
3517 resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000;
3518 break;
3519 }
3520 off += 4;
3521 if (off > 4)
3522 break;
468392fb
AM		 3523 }
3524
3525 if (resolv_vma)
3526 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
468392fb 3527
066ee829
AM		 3528 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
3529 if (relplt != NULL)
3530 {
3531 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3532 if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE))
c4b0b099 3533 goto free_contents_and_exit_err;
68ffbac6 3534
066ee829
AM		 3535 plt_count = relplt->size / sizeof (Elf64_External_Rela);
3536 size += plt_count * sizeof (asymbol);
468392fb 3537
066ee829
AM		 3538 p = relplt->relocation;
3539 for (i = 0; i < plt_count; i++, p++)
e054468f
AM		 3540 {
3541 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3542 if (p->addend != 0)
3543 size += sizeof ("+0x") - 1 + 16;
3544 }
066ee829 3545 }
468392fb
AM		 3546 }
3547
c4b0b099
AM		 3548 if (size == 0)
3549 goto free_contents_and_exit;
699733f6
AM		 3550 s = *ret = bfd_malloc (size);
3551 if (s == NULL)
c4b0b099 3552 goto free_contents_and_exit_err;
90e3cdf2 3553
468392fb 3554 names = (char *) (s + count + plt_count + (resolv_vma != 0));
90e3cdf2 3555
699733f6 3556 for (i = secsymend; i < opdsymend; ++i)
90e3cdf2 3557 {
699733f6 3558 bfd_vma ent;
90e3cdf2 3559
5ef11c02
AM		 3560 if (syms[i]->value > opd->size - 8)
3561 continue;
3562
699733f6
AM		 3563 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3564 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
90e3cdf2 3565 {
c9727e01 3566 long lo, hi;
699733f6 3567 size_t len;
c9727e01 3568 asection *sec = abfd->sections;
90e3cdf2 3569
699733f6
AM		 3570 *s = *syms[i];
3571 lo = codesecsym;
3572 hi = codesecsymend;
3573 while (lo < hi)
3574 {
c9727e01 3575 long mid = (lo + hi) >> 1;
699733f6
AM		 3576 if (syms[mid]->section->vma < ent)
3577 lo = mid + 1;
3578 else if (syms[mid]->section->vma > ent)
3579 hi = mid;
3580 else
c9727e01
AM		 3581 {
3582 sec = syms[mid]->section;
3583 break;
3584 }
699733f6
AM		 3585 }
3586
c9727e01 3587 if (lo >= hi && lo > codesecsym)
699733f6 3588 sec = syms[lo - 1]->section;
699733f6
AM		 3589
3590 for (; sec != NULL; sec = sec->next)
3591 {
3592 if (sec->vma > ent)
3593 break;
63524580
JK		 3594 /* SEC_LOAD may not be set if SEC is from a separate debug
3595 info file. */
3596 if ((sec->flags & SEC_ALLOC) == 0)
699733f6
AM		 3597 break;
3598 if ((sec->flags & SEC_CODE) != 0)
3599 s->section = sec;
3600 }
6ba2a415 3601 s->flags |= BSF_SYNTHETIC;
699733f6
AM		 3602 s->value = ent - s->section->vma;
3603 s->name = names;
3604 *names++ = '.';
3605 len = strlen (syms[i]->name);
3606 memcpy (names, syms[i]->name, len + 1);
3607 names += len + 1;
6f610d07
UW		 3608 /* Have udata.p point back to the original symbol this
3609 synthetic symbol was derived from. */
3610 s->udata.p = syms[i];
699733f6 3611 s++;
90e3cdf2 3612 }
90e3cdf2 3613 }
699733f6 3614 free (contents);
468392fb
AM		 3615
3616 if (glink != NULL && relplt != NULL)
3617 {
3618 if (resolv_vma)
3619 {
3620 /* Add a symbol for the main glink trampoline. */
86a4952b 3621 memset (s, 0, sizeof *s);
468392fb 3622 s->the_bfd = abfd;
6ba2a415 3623 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM		 3624 s->section = glink;
3625 s->value = resolv_vma - glink->vma;
3626 s->name = names;
3627 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3628 names += sizeof ("__glink_PLTresolve");
3629 s++;
3630 count++;
3631 }
3632
3633 /* FIXME: It would be very much nicer to put sym@plt on the
3634 stub rather than on the glink branch table entry. The
3635 objdump disassembler would then use a sensible symbol
3636 name on plt calls. The difficulty in doing so is
3637 a) finding the stubs, and,
3638 b) matching stubs against plt entries, and,
3639 c) there can be multiple stubs for a given plt entry.
3640
3641 Solving (a) could be done by code scanning, but older
3642 ppc64 binaries used different stubs to current code.
3643 (b) is the tricky one since you need to known the toc
3644 pointer for at least one function that uses a pic stub to
3645 be able to calculate the plt address referenced.
3646 (c) means gdb would need to set multiple breakpoints (or
3647 find the glink branch itself) when setting breakpoints
3648 for pending shared library loads. */
3649 p = relplt->relocation;
3650 for (i = 0; i < plt_count; i++, p++)
3651 {
3652 size_t len;
3653
3654 *s = **p->sym_ptr_ptr;
3655 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3656 we are defining a symbol, ensure one of them is set. */
3657 if ((s->flags & BSF_LOCAL) == 0)
3658 s->flags |= BSF_GLOBAL;
6ba2a415 3659 s->flags |= BSF_SYNTHETIC;
468392fb
AM		 3660 s->section = glink;
3661 s->value = glink_vma - glink->vma;
3662 s->name = names;
3663 s->udata.p = NULL;
3664 len = strlen ((*p->sym_ptr_ptr)->name);
3665 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3666 names += len;
e054468f
AM		 3667 if (p->addend != 0)
3668 {
3669 memcpy (names, "+0x", sizeof ("+0x") - 1);
3670 names += sizeof ("+0x") - 1;
3671 bfd_sprintf_vma (abfd, names, p->addend);
3672 names += strlen (names);
3673 }
468392fb
AM		 3674 memcpy (names, "@plt", sizeof ("@plt"));
3675 names += sizeof ("@plt");
3676 s++;
b9e5796b
AM		 3677 if (abi < 2)
3678 {
3679 glink_vma += 8;
3680 if (i >= 0x8000)
3681 glink_vma += 4;
3682 }
3683 else
468392fb
AM		 3684 glink_vma += 4;
3685 }
3686 count += plt_count;
3687 }
90e3cdf2
JJ		 3688 }
3689
c9727e01 3690 done:
a7535cf3 3691 free (syms);
90e3cdf2
JJ		 3692 return count;
3693}
5bd4f169 3694\f
65f38f15
AM		 3695/* The following functions are specific to the ELF linker, while
3696 functions above are used generally. Those named ppc64_elf_* are
3697 called by the main ELF linker code. They appear in this file more
3698 or less in the order in which they are called. eg.
3699 ppc64_elf_check_relocs is called early in the link process,
3700 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 3701 called.
3702
3703 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3704 functions have both a function code symbol and a function descriptor
3705 symbol. A call to foo in a relocatable object file looks like:
3706
3707 . .text
3708 . x:
3709 . bl .foo
3710 . nop
3711
3712 The function definition in another object file might be:
3713
3714 . .section .opd
3715 . foo: .quad .foo
3716 . .quad .TOC.@tocbase
3717 . .quad 0
3718 .
3719 . .text
3720 . .foo: blr
3721
3722 When the linker resolves the call during a static link, the branch
3723 unsurprisingly just goes to .foo and the .opd information is unused.
3724 If the function definition is in a shared library, things are a little
3725 different: The call goes via a plt call stub, the opd information gets
3726 copied to the plt, and the linker patches the nop.
3727
3728 . x:
3729 . bl .foo_stub
3730 . ld 2,40(1)
3731 .
3732 .
3733 . .foo_stub:
71a39c98
AM		 3734 . std 2,40(1) # in practice, the call stub
3735 . addis 11,2,Lfoo@toc@ha # is slightly optimized, but
3736 . addi 11,11,Lfoo@toc@l # this is the general idea
3737 . ld 12,0(11)
3738 . ld 2,8(11)
3739 . mtctr 12
3740 . ld 11,16(11)
e86ce104
AM		 3741 . bctr
3742 .
3743 . .section .plt
3744 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3745
3746 The "reloc ()" notation is supposed to indicate that the linker emits
3747 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3748 copying.
3749
3750 What are the difficulties here? Well, firstly, the relocations
3751 examined by the linker in check_relocs are against the function code
3752 sym .foo, while the dynamic relocation in the plt is emitted against
3753 the function descriptor symbol, foo. Somewhere along the line, we need
3754 to carefully copy dynamic link information from one symbol to the other.
3755 Secondly, the generic part of the elf linker will make .foo a dynamic
3756 symbol as is normal for most other backends. We need foo dynamic
3757 instead, at least for an application final link. However, when
3758 creating a shared library containing foo, we need to have both symbols
3759 dynamic so that references to .foo are satisfied during the early
3760 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM		 3761 definition from some other object, eg. a static library.
3762
3763 Update: As of August 2004, we support a new convention. Function
3764 calls may use the function descriptor symbol, ie. "bl foo". This
3765 behaves exactly as "bl .foo". */
65f38f15 3766
1d483afe 3767/* Of those relocs that might be copied as dynamic relocs, this function
58ac9f71
AM		 3768 selects those that must be copied when linking a shared library,
3769 even when the symbol is local. */
65f38f15 3770
1d483afe
AM		 3771static int
3772must_be_dyn_reloc (struct bfd_link_info *info,
3773 enum elf_ppc64_reloc_type r_type)
3774{
3775 switch (r_type)
3776 {
3777 default:
3778 return 1;
3779
3780 case R_PPC64_REL32:
3781 case R_PPC64_REL64:
3782 case R_PPC64_REL30:
3783 return 0;
3784
3785 case R_PPC64_TPREL16:
3786 case R_PPC64_TPREL16_LO:
3787 case R_PPC64_TPREL16_HI:
3788 case R_PPC64_TPREL16_HA:
3789 case R_PPC64_TPREL16_DS:
3790 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 3791 case R_PPC64_TPREL16_HIGH:
3792 case R_PPC64_TPREL16_HIGHA:
1d483afe
AM		 3793 case R_PPC64_TPREL16_HIGHER:
3794 case R_PPC64_TPREL16_HIGHERA:
3795 case R_PPC64_TPREL16_HIGHEST:
3796 case R_PPC64_TPREL16_HIGHESTA:
3797 case R_PPC64_TPREL64:
0e1862bb 3798 return !bfd_link_executable (info);
1d483afe
AM		 3799 }
3800}
65f38f15 3801
f4656909
AM		 3802/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3803 copying dynamic variables from a shared lib into an app's dynbss
3804 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 3805 shared lib. With code that gcc generates, it's vital that this be
3806 enabled; In the PowerPC64 ABI, the address of a function is actually
3807 the address of a function descriptor, which resides in the .opd
3808 section. gcc uses the descriptor directly rather than going via the
3809 GOT as some other ABI's do, which means that initialized function
3810 pointers must reference the descriptor. Thus, a function pointer
3811 initialized to the address of a function in a shared library will
3812 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3813 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM		 3814 presents a problem as a plt entry for that function is also
3815 initialized from the function descriptor symbol and the copy reloc
3816 may not be initialized first. */
a23b6845 3817#define ELIMINATE_COPY_RELOCS 1
f4656909 3818
721956f4 3819/* Section name for stubs is the associated section name plus this
29942be8
NC		 3820 string. */
3821#define STUB_SUFFIX ".stub"
721956f4
AM		 3822
3823/* Linker stubs.
3824 ppc_stub_long_branch:
3825 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3826 destination, but a 24 bit branch in a stub section will reach.
3827 . b dest
3828
3829 ppc_stub_plt_branch:
3830 Similar to the above, but a 24 bit branch in the stub section won't
3831 reach its destination.
71a39c98
AM		 3832 . addis %r11,%r2,xxx@toc@ha
3833 . ld %r12,xxx@toc@l(%r11)
3834 . mtctr %r12
721956f4
AM		 3835 . bctr
3836
3837 ppc_stub_plt_call:
2c66dc6c
AM		 3838 Used to call a function in a shared library. If it so happens that
3839 the plt entry referenced crosses a 64k boundary, then an extra
71a39c98 3840 "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr".
721956f4 3841 . std %r2,40(%r1)
71a39c98
AM		 3842 . addis %r11,%r2,xxx@toc@ha
3843 . ld %r12,xxx+0@toc@l(%r11)
3844 . mtctr %r12
3845 . ld %r2,xxx+8@toc@l(%r11)
3846 . ld %r11,xxx+16@toc@l(%r11)
721956f4 3847 . bctr
ad8e1ba5
AM		 3848
3849 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3850 code to adjust the value and save r2 to support multiple toc sections.
3851 A ppc_stub_long_branch with an r2 offset looks like:
3852 . std %r2,40(%r1)
3853 . addis %r2,%r2,off@ha
3854 . addi %r2,%r2,off@l
3855 . b dest
3856
3857 A ppc_stub_plt_branch with an r2 offset looks like:
3858 . std %r2,40(%r1)
71a39c98
AM		 3859 . addis %r11,%r2,xxx@toc@ha
3860 . ld %r12,xxx@toc@l(%r11)
ad8e1ba5
AM		 3861 . addis %r2,%r2,off@ha
3862 . addi %r2,%r2,off@l
71a39c98 3863 . mtctr %r12
ad8e1ba5 3864 . bctr
ac2df442
AM		 3865
3866 In cases where the "addis" instruction would add zero, the "addis" is
3867 omitted and following instructions modified slightly in some cases.
721956f4
AM		 3868*/
3869
3870enum ppc_stub_type {
3871 ppc_stub_none,
3872 ppc_stub_long_branch,
ad8e1ba5 3873 ppc_stub_long_branch_r2off,
721956f4 3874 ppc_stub_plt_branch,
ad8e1ba5 3875 ppc_stub_plt_branch_r2off,
794e51c0 3876 ppc_stub_plt_call,
7341d5e2 3877 ppc_stub_plt_call_r2save,
a4b6fadd
AM		 3878 ppc_stub_global_entry,
3879 ppc_stub_save_res
721956f4
AM		 3880};
3881
6f20ed8a
AM		 3882/* Information on stub grouping. */
3883struct map_stub
3884{
3885 /* The stub section. */
3886 asection *stub_sec;
3887 /* This is the section to which stubs in the group will be attached. */
3888 asection *link_sec;
a4b6fadd
AM		 3889 /* Next group. */
3890 struct map_stub *next;
3891 /* Whether to emit a copy of register save/restore functions in this
3892 group. */
3893 int needs_save_res;
6f20ed8a
AM		 3894};
3895
721956f4
AM		 3896struct ppc_stub_hash_entry {
3897
3898 /* Base hash table entry structure. */
3899 struct bfd_hash_entry root;
3900
ad8e1ba5
AM		 3901 enum ppc_stub_type stub_type;
3902
6f20ed8a
AM		 3903 /* Group information. */
3904 struct map_stub *group;
721956f4
AM		 3905
3906 /* Offset within stub_sec of the beginning of this stub. */
3907 bfd_vma stub_offset;
3908
3909 /* Given the symbol's value and its section we can determine its final
3910 value when building the stubs (so the stub knows where to jump. */
3911 bfd_vma target_value;
3912 asection *target_section;
3913
721956f4
AM		 3914 /* The symbol table entry, if any, that this was derived from. */
3915 struct ppc_link_hash_entry *h;
e054468f 3916 struct plt_entry *plt_ent;
721956f4 3917
6911b7dc
AM		 3918 /* Symbol st_other. */
3919 unsigned char other;
721956f4
AM		 3920};
3921
3922struct ppc_branch_hash_entry {
3923
3924 /* Base hash table entry structure. */
3925 struct bfd_hash_entry root;
3926
c456f082 3927 /* Offset within branch lookup table. */
721956f4
AM		 3928 unsigned int offset;
3929
3930 /* Generation marker. */
3931 unsigned int iter;
3932};
65f38f15 3933
19e08130
AM		 3934/* Used to track dynamic relocations for local symbols. */
3935struct ppc_dyn_relocs
3936{
3937 struct ppc_dyn_relocs *next;
3938
3939 /* The input section of the reloc. */
3940 asection *sec;
3941
3942 /* Total number of relocs copied for the input section. */
3943 unsigned int count : 31;
3944
3945 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3946 unsigned int ifunc : 1;
3947};
3948
65f38f15
AM		 3949struct ppc_link_hash_entry
3950{
3951 struct elf_link_hash_entry elf;
3952
b3fac117
AM		 3953 union {
3954 /* A pointer to the most recently used stub hash entry against this
3955 symbol. */
3956 struct ppc_stub_hash_entry *stub_cache;
3957
3958 /* A pointer to the next symbol starting with a '.' */
3959 struct ppc_link_hash_entry *next_dot_sym;
3960 } u;
721956f4 3961
65f38f15 3962 /* Track dynamic relocs copied for this symbol. */
6061a67d 3963 struct elf_dyn_relocs *dyn_relocs;
e86ce104 3964
d311bc8b
AM		 3965 /* Chain of aliases referring to a weakdef. */
3966 struct ppc_link_hash_entry *weakref;
3967
721956f4 3968 /* Link between function code and descriptor symbols. */
34814b9f 3969 struct ppc_link_hash_entry *oh;
721956f4 3970
e86ce104
AM		 3971 /* Flag function code and descriptor symbols. */
3972 unsigned int is_func:1;
3973 unsigned int is_func_descriptor:1;
908b32fc 3974 unsigned int fake:1;
411e1bfb 3975
c5614fa4
AM		 3976 /* Whether global opd/toc sym has been adjusted or not.
3977 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3978 should be set for all globals defined in any opd/toc section. */
754021d0
AM		 3979 unsigned int adjust_done:1;
3980
99877b66
AM		 3981 /* Set if we twiddled this symbol to weak at some stage. */
3982 unsigned int was_undefined:1;
3983
a4b6fadd
AM		 3984 /* Set if this is an out-of-line register save/restore function,
3985 with non-standard calling convention. */
3986 unsigned int save_res:1;
3987
411e1bfb 3988 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 3989 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3990 corresponding relocs are encountered during check_relocs.
3991 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3992 indicate the corresponding GOT entry type is not needed.
3993 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3994 a TPREL one. We use a separate flag rather than setting TPREL
3995 just for convenience in distinguishing the two cases. */
3996#define TLS_GD 1 /* GD reloc. */
3997#define TLS_LD 2 /* LD reloc. */
3998#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3999#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
4000#define TLS_TLS 16 /* Any TLS reloc. */
4001#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
4002#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
e054468f 4003#define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
f961d9dd 4004 unsigned char tls_mask;
65f38f15
AM		 4005};
4006
4007/* ppc64 ELF linker hash table. */
4008
4009struct ppc_link_hash_table
4010{
4011 struct elf_link_hash_table elf;
4012
721956f4
AM		 4013 /* The stub hash table. */
4014 struct bfd_hash_table stub_hash_table;
4015
4016 /* Another hash table for plt_branch stubs. */
4017 struct bfd_hash_table branch_hash_table;
4018
3b421ab3
AM		 4019 /* Hash table for function prologue tocsave. */
4020 htab_t tocsave_htab;
4021
e7d1c40c
AM		 4022 /* Various options and other info passed from the linker. */
4023 struct ppc64_elf_params *params;
721956f4 4024
6f20ed8a
AM		 4025 /* The size of sec_info below. */
4026 unsigned int sec_info_arr_size;
4027
4028 /* Per-section array of extra section info. Done this way rather
4029 than as part of ppc64_elf_section_data so we have the info for
4030 non-ppc64 sections. */
4031 struct
4032 {
4033 /* Along with elf_gp, specifies the TOC pointer used by this section. */
ad8e1ba5 4034 bfd_vma toc_off;
6f20ed8a
AM		 4035
4036 union
4037 {
4038 /* The section group that this section belongs to. */
4039 struct map_stub *group;
4040 /* A temp section list pointer. */
4041 asection *list;
4042 } u;
4043 } *sec_info;
721956f4 4044
a4b6fadd
AM		 4045 /* Linked list of groups. */
4046 struct map_stub *group;
4047
ad8e1ba5
AM		 4048 /* Temp used when calculating TOC pointers. */
4049 bfd_vma toc_curr;
bf102f86
AM		 4050 bfd *toc_bfd;
4051 asection *toc_first_sec;
ad8e1ba5 4052
b3fac117
AM		 4053 /* Used when adding symbols. */
4054 struct ppc_link_hash_entry *dot_syms;
4055
33e44f2e 4056 /* Shortcuts to get to dynamic linker sections. */
4ce794b7
AM		 4057 asection *dynbss;
4058 asection *relbss;
4059 asection *glink;
82bd7b59 4060 asection *sfpr;
4ce794b7
AM		 4061 asection *brlt;
4062 asection *relbrlt;
58d180e8 4063 asection *glink_eh_frame;
ec338859 4064
8387904d
AM		 4065 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
4066 struct ppc_link_hash_entry *tls_get_addr;
4067 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 4068
927be08e
AM		 4069 /* The size of reliplt used by got entry relocs. */
4070 bfd_size_type got_reli_size;
4071
9b5ecbd0 4072 /* Statistics. */
7341d5e2 4073 unsigned long stub_count[ppc_stub_global_entry];
9b5ecbd0 4074
ee75fd95
AM		 4075 /* Number of stubs against global syms. */
4076 unsigned long stub_globals;
4077
ee67d69a
AM		 4078 /* Set if we're linking code with function descriptors. */
4079 unsigned int opd_abi:1;
4080
4c52953f 4081 /* Support for multiple toc sections. */
33c0ec9d 4082 unsigned int do_multi_toc:1;
4c52953f 4083 unsigned int multi_toc_needed:1;
927be08e 4084 unsigned int second_toc_pass:1;
67f0cbdb 4085 unsigned int do_toc_opt:1;
4c52953f 4086
5d1634d7 4087 /* Set on error. */
99877b66 4088 unsigned int stub_error:1;
721956f4 4089
f6c7c3e8 4090 /* Temp used by ppc64_elf_before_check_relocs. */
99877b66 4091 unsigned int twiddled_syms:1;
721956f4
AM		 4092
4093 /* Incremented every time we size stubs. */
4094 unsigned int stub_iteration;
5d1634d7 4095
87d72d41
AM		 4096 /* Small local sym cache. */
4097 struct sym_cache sym_cache;
65f38f15
AM		 4098};
4099
4c52953f
AM		 4100/* Rename some of the generic section flags to better document how they
4101 are used here. */
b0dddeec
AM		 4102
4103/* Nonzero if this section has TLS related relocations. */
4104#define has_tls_reloc sec_flg0
4105
4106/* Nonzero if this section has a call to __tls_get_addr. */
4107#define has_tls_get_addr_call sec_flg1
4108
4109/* Nonzero if this section has any toc or got relocs. */
4110#define has_toc_reloc sec_flg2
4111
4112/* Nonzero if this section has a call to another section that uses
4113 the toc or got. */
d77c8a4b 4114#define makes_toc_func_call sec_flg3
b0dddeec
AM		 4115
4116/* Recursion protection when determining above flag. */
d77c8a4b 4117#define call_check_in_progress sec_flg4
70cc837d 4118#define call_check_done sec_flg5
4c52953f 4119
65f38f15
AM		 4120/* Get the ppc64 ELF linker hash table from a link_info structure. */
4121
4122#define ppc_hash_table(p) \
4dfe6ac6
NC		 4123 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
4124 == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL)
65f38f15 4125
721956f4
AM		 4126#define ppc_stub_hash_lookup(table, string, create, copy) \
4127 ((struct ppc_stub_hash_entry *) \
4128 bfd_hash_lookup ((table), (string), (create), (copy)))
4129
4130#define ppc_branch_hash_lookup(table, string, create, copy) \
4131 ((struct ppc_branch_hash_entry *) \
4132 bfd_hash_lookup ((table), (string), (create), (copy)))
4133
4134/* Create an entry in the stub hash table. */
4135
4136static struct bfd_hash_entry *
4ce794b7
AM		 4137stub_hash_newfunc (struct bfd_hash_entry *entry,
4138 struct bfd_hash_table *table,
4139 const char *string)
721956f4
AM		 4140{
4141 /* Allocate the structure if it has not already been allocated by a
4142 subclass. */
4143 if (entry == NULL)
4144 {
4145 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
4146 if (entry == NULL)
4147 return entry;
4148 }
4149
4150 /* Call the allocation method of the superclass. */
4151 entry = bfd_hash_newfunc (entry, table, string);
4152 if (entry != NULL)
4153 {
4154 struct ppc_stub_hash_entry *eh;
4155
4156 /* Initialize the local fields. */
4157 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 4158 eh->stub_type = ppc_stub_none;
6f20ed8a 4159 eh->group = NULL;
721956f4
AM		 4160 eh->stub_offset = 0;
4161 eh->target_value = 0;
4162 eh->target_section = NULL;
721956f4 4163 eh->h = NULL;
6911b7dc 4164 eh->plt_ent = NULL;
6911b7dc 4165 eh->other = 0;
721956f4
AM		 4166 }
4167
4168 return entry;
4169}
4170
4171/* Create an entry in the branch hash table. */
4172
4173static struct bfd_hash_entry *
4ce794b7
AM		 4174branch_hash_newfunc (struct bfd_hash_entry *entry,
4175 struct bfd_hash_table *table,
4176 const char *string)
721956f4
AM		 4177{
4178 /* Allocate the structure if it has not already been allocated by a
4179 subclass. */
4180 if (entry == NULL)
4181 {
4182 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
4183 if (entry == NULL)
4184 return entry;
4185 }
4186
4187 /* Call the allocation method of the superclass. */
4188 entry = bfd_hash_newfunc (entry, table, string);
4189 if (entry != NULL)
4190 {
4191 struct ppc_branch_hash_entry *eh;
4192
4193 /* Initialize the local fields. */
4194 eh = (struct ppc_branch_hash_entry *) entry;
4195 eh->offset = 0;
4196 eh->iter = 0;
4197 }
4198
4199 return entry;
4200}
4201
65f38f15
AM		 4202/* Create an entry in a ppc64 ELF linker hash table. */
4203
4204static struct bfd_hash_entry *
4ce794b7
AM		 4205link_hash_newfunc (struct bfd_hash_entry *entry,
4206 struct bfd_hash_table *table,
4207 const char *string)
65f38f15
AM		 4208{
4209 /* Allocate the structure if it has not already been allocated by a
4210 subclass. */
4211 if (entry == NULL)
4212 {
4213 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
4214 if (entry == NULL)
4215 return entry;
4216 }
4217
4218 /* Call the allocation method of the superclass. */
4219 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
4220 if (entry != NULL)
4221 {
4222 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
4223
b3fac117 4224 memset (&eh->u.stub_cache, 0,
908b32fc 4225 (sizeof (struct ppc_link_hash_entry)
b3fac117
AM		 4226 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
4227
4228 /* When making function calls, old ABI code references function entry
4229 points (dot symbols), while new ABI code references the function
4230 descriptor symbol. We need to make any combination of reference and
4231 definition work together, without breaking archive linking.
4232
4233 For a defined function "foo" and an undefined call to "bar":
4234 An old object defines "foo" and ".foo", references ".bar" (possibly
4235 "bar" too).
4236 A new object defines "foo" and references "bar".
4237
4238 A new object thus has no problem with its undefined symbols being
4239 satisfied by definitions in an old object. On the other hand, the
4240 old object won't have ".bar" satisfied by a new object.
4241
4242 Keep a list of newly added dot-symbols. */
4243
4244 if (string[0] == '.')
4245 {
4246 struct ppc_link_hash_table *htab;
4247
4248 htab = (struct ppc_link_hash_table *) table;
4249 eh->u.next_dot_sym = htab->dot_syms;
4250 htab->dot_syms = eh;
4251 }
65f38f15
AM		 4252 }
4253
4254 return entry;
4255}
4256
3b421ab3
AM		 4257struct tocsave_entry {
4258 asection *sec;
4259 bfd_vma offset;
4260};
4261
4262static hashval_t
4263tocsave_htab_hash (const void *p)
4264{
4265 const struct tocsave_entry *e = (const struct tocsave_entry *) p;
4266 return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3;
4267}
4268
4269static int
4270tocsave_htab_eq (const void *p1, const void *p2)
4271{
4272 const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1;
4273 const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2;
4274 return e1->sec == e2->sec && e1->offset == e2->offset;
4275}
4276
68faa637
AM		 4277/* Destroy a ppc64 ELF linker hash table. */
4278
4279static void
d495ab0d 4280ppc64_elf_link_hash_table_free (bfd *obfd)
68faa637 4281{
d495ab0d 4282 struct ppc_link_hash_table *htab;
68faa637 4283
d495ab0d 4284 htab = (struct ppc_link_hash_table *) obfd->link.hash;
68faa637
AM		 4285 if (htab->tocsave_htab)
4286 htab_delete (htab->tocsave_htab);
d495ab0d
AM		 4287 bfd_hash_table_free (&htab->branch_hash_table);
4288 bfd_hash_table_free (&htab->stub_hash_table);
4289 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 4290}
4291
65f38f15
AM		 4292/* Create a ppc64 ELF linker hash table. */
4293
4294static struct bfd_link_hash_table *
4ce794b7 4295ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 4296{
4297 struct ppc_link_hash_table *htab;
4298 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
4299
4ce794b7 4300 htab = bfd_zmalloc (amt);
65f38f15
AM		 4301 if (htab == NULL)
4302 return NULL;
4303
66eb6687 4304 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 4305 sizeof (struct ppc_link_hash_entry),
4306 PPC64_ELF_DATA))
65f38f15 4307 {
e2d34d7d 4308 free (htab);
65f38f15
AM		 4309 return NULL;
4310 }
4311
721956f4 4312 /* Init the stub hash table too. */
66eb6687
AM		 4313 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
4314 sizeof (struct ppc_stub_hash_entry)))
2915c55b 4315 {
d495ab0d 4316 _bfd_elf_link_hash_table_free (abfd);
2915c55b
JK		 4317 return NULL;
4318 }
721956f4
AM		 4319
4320 /* And the branch hash table. */
66eb6687
AM		 4321 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
4322 sizeof (struct ppc_branch_hash_entry)))
2915c55b
JK		 4323 {
4324 bfd_hash_table_free (&htab->stub_hash_table);
d495ab0d 4325 _bfd_elf_link_hash_table_free (abfd);
2915c55b
JK		 4326 return NULL;
4327 }
721956f4 4328
3b421ab3
AM		 4329 htab->tocsave_htab = htab_try_create (1024,
4330 tocsave_htab_hash,
4331 tocsave_htab_eq,
4332 NULL);
4333 if (htab->tocsave_htab == NULL)
2915c55b 4334 {
d495ab0d 4335 ppc64_elf_link_hash_table_free (abfd);
2915c55b
JK		 4336 return NULL;
4337 }
d495ab0d 4338 htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free;
3b421ab3 4339
3254fd24
AM		 4340 /* Initializing two fields of the union is just cosmetic. We really
4341 only care about glist, but when compiled on a 32-bit host the
4342 bfd_vma fields are larger. Setting the bfd_vma to zero makes
4343 debugger inspection of these fields look nicer. */
a6aa5195
AM		 4344 htab->elf.init_got_refcount.refcount = 0;
4345 htab->elf.init_got_refcount.glist = NULL;
4346 htab->elf.init_plt_refcount.refcount = 0;
4347 htab->elf.init_plt_refcount.glist = NULL;
4348 htab->elf.init_got_offset.offset = 0;
4349 htab->elf.init_got_offset.glist = NULL;
4350 htab->elf.init_plt_offset.offset = 0;
4351 htab->elf.init_plt_offset.glist = NULL;
3254fd24 4352
65f38f15
AM		 4353 return &htab->elf.root;
4354}
4355
bfeb4a28
AM		 4356/* Create sections for linker generated code. */
4357
4358static bfd_boolean
4359create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
4360{
4361 struct ppc_link_hash_table *htab;
4362 flagword flags;
4363
4364 htab = ppc_hash_table (info);
4365
bfeb4a28
AM		 4366 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
4367 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
b32547cd
AM		 4368 if (htab->params->save_restore_funcs)
4369 {
4370 /* Create .sfpr for code to save and restore fp regs. */
4371 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
4372 flags);
4373 if (htab->sfpr == NULL
4374 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
4375 return FALSE;
4376 }
4377
4378 if (bfd_link_relocatable (info))
4379 return TRUE;
bfeb4a28
AM		 4380
4381 /* Create .glink for lazy dynamic linking support. */
4382 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
4383 flags);
4384 if (htab->glink == NULL
4385 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
4386 return FALSE;
4387
4388 if (!info->no_ld_generated_unwind_info)
4389 {
4390 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
4391 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4392 htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj,
4393 ".eh_frame",
4394 flags);
4395 if (htab->glink_eh_frame == NULL
4396 || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2))
4397 return FALSE;
4398 }
4399
4400 flags = SEC_ALLOC | SEC_LINKER_CREATED;
33e44f2e
AM		 4401 htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
4402 if (htab->elf.iplt == NULL
4403 || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3))
bfeb4a28
AM		 4404 return FALSE;
4405
4406 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4407 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
33e44f2e
AM		 4408 htab->elf.irelplt
4409 = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags);
4410 if (htab->elf.irelplt == NULL
4411 || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3))
bfeb4a28
AM		 4412 return FALSE;
4413
4414 /* Create branch lookup table for plt_branch stubs. */
4415 flags = (SEC_ALLOC | SEC_LOAD
4416 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4417 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
4418 flags);
4419 if (htab->brlt == NULL
4420 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
4421 return FALSE;
4422
0e1862bb 4423 if (!bfd_link_pic (info))
bfeb4a28
AM		 4424 return TRUE;
4425
4426 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4427 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4428 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
4429 ".rela.branch_lt",
4430 flags);
4431 if (htab->relbrlt == NULL
4432 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
4433 return FALSE;
4434
4435 return TRUE;
4436}
4437
e717da7e
AM		 4438/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
4439
bfeb4a28 4440bfd_boolean
e7d1c40c
AM		 4441ppc64_elf_init_stub_bfd (struct bfd_link_info *info,
4442 struct ppc64_elf_params *params)
e717da7e
AM		 4443{
4444 struct ppc_link_hash_table *htab;
4445
e7d1c40c 4446 elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64;
e717da7e
AM		 4447
4448/* Always hook our dynamic sections into the first bfd, which is the
4449 linker created stub bfd. This ensures that the GOT header is at
4450 the start of the output TOC section. */
4451 htab = ppc_hash_table (info);
e7d1c40c
AM		 4452 htab->elf.dynobj = params->stub_bfd;
4453 htab->params = params;
bfeb4a28 4454
bfeb4a28 4455 return create_linkage_sections (htab->elf.dynobj, info);
e717da7e
AM		 4456}
4457
721956f4
AM		 4458/* Build a name for an entry in the stub hash table. */
4459
4460static char *
4ce794b7
AM		 4461ppc_stub_name (const asection *input_section,
4462 const asection *sym_sec,
4463 const struct ppc_link_hash_entry *h,
4464 const Elf_Internal_Rela *rel)
721956f4
AM		 4465{
4466 char *stub_name;
bcaa2f82 4467 ssize_t len;
721956f4
AM		 4468
4469 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
4470 offsets from a sym as a branch target? In fact, we could
4471 probably assume the addend is always zero. */
4472 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
4473
4474 if (h)
4475 {
4476 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
4477 stub_name = bfd_malloc (len);
46de2a7c
AM		 4478 if (stub_name == NULL)
4479 return stub_name;
4480
bcaa2f82
AM		 4481 len = sprintf (stub_name, "%08x.%s+%x",
4482 input_section->id & 0xffffffff,
4483 h->elf.root.root.string,
4484 (int) rel->r_addend & 0xffffffff);
721956f4
AM		 4485 }
4486 else
4487 {
ad8e1ba5 4488 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4 4489 stub_name = bfd_malloc (len);
46de2a7c
AM		 4490 if (stub_name == NULL)
4491 return stub_name;
4492
bcaa2f82
AM		 4493 len = sprintf (stub_name, "%08x.%x:%x+%x",
4494 input_section->id & 0xffffffff,
4495 sym_sec->id & 0xffffffff,
4496 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
4497 (int) rel->r_addend & 0xffffffff);
721956f4 4498 }
bcaa2f82 4499 if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
ee75fd95 4500 stub_name[len - 2] = 0;
721956f4
AM		 4501 return stub_name;
4502}
4503
4504/* Look up an entry in the stub hash. Stub entries are cached because
4505 creating the stub name takes a bit of time. */
4506
4507static struct ppc_stub_hash_entry *
4ce794b7
AM		 4508ppc_get_stub_entry (const asection *input_section,
4509 const asection *sym_sec,
039b3fef 4510 struct ppc_link_hash_entry *h,
4ce794b7
AM		 4511 const Elf_Internal_Rela *rel,
4512 struct ppc_link_hash_table *htab)
721956f4
AM		 4513{
4514 struct ppc_stub_hash_entry *stub_entry;
6f20ed8a 4515 struct map_stub *group;
721956f4
AM		 4516
4517 /* If this input section is part of a group of sections sharing one
4518 stub section, then use the id of the first section in the group.
4519 Stub names need to include a section id, as there may well be
4520 more than one stub used to reach say, printf, and we need to
4521 distinguish between them. */
6f20ed8a 4522 group = htab->sec_info[input_section->id].u.group;
89d77b8a
AM		 4523 if (group == NULL)
4524 return NULL;
721956f4 4525
b3fac117
AM		 4526 if (h != NULL && h->u.stub_cache != NULL
4527 && h->u.stub_cache->h == h
6f20ed8a 4528 && h->u.stub_cache->group == group)
721956f4 4529 {
b3fac117 4530 stub_entry = h->u.stub_cache;
721956f4
AM		 4531 }
4532 else
4533 {
4534 char *stub_name;
4535
6f20ed8a 4536 stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel);
721956f4
AM		 4537 if (stub_name == NULL)
4538 return NULL;
4539
4540 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 4541 stub_name, FALSE, FALSE);
721956f4 4542 if (h != NULL)
b3fac117 4543 h->u.stub_cache = stub_entry;
721956f4
AM		 4544
4545 free (stub_name);
4546 }
4547
4548 return stub_entry;
4549}
4550
4551/* Add a new stub entry to the stub hash. Not all fields of the new
4552 stub entry are initialised. */
4553
4554static struct ppc_stub_hash_entry *
4ce794b7
AM		 4555ppc_add_stub (const char *stub_name,
4556 asection *section,
25f53a85 4557 struct bfd_link_info *info)
721956f4 4558{
25f53a85 4559 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6f20ed8a 4560 struct map_stub *group;
721956f4
AM		 4561 asection *link_sec;
4562 asection *stub_sec;
4563 struct ppc_stub_hash_entry *stub_entry;
4564
6f20ed8a
AM		 4565 group = htab->sec_info[section->id].u.group;
4566 link_sec = group->link_sec;
4567 stub_sec = group->stub_sec;
721956f4
AM		 4568 if (stub_sec == NULL)
4569 {
6f20ed8a
AM		 4570 size_t namelen;
4571 bfd_size_type len;
4572 char *s_name;
721956f4 4573
6f20ed8a
AM		 4574 namelen = strlen (link_sec->name);
4575 len = namelen + sizeof (STUB_SUFFIX);
4576 s_name = bfd_alloc (htab->params->stub_bfd, len);
4577 if (s_name == NULL)
4578 return NULL;
721956f4 4579
6f20ed8a
AM		 4580 memcpy (s_name, link_sec->name, namelen);
4581 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
4582 stub_sec = (*htab->params->add_stub_section) (s_name, link_sec);
4583 if (stub_sec == NULL)
4584 return NULL;
4585 group->stub_sec = stub_sec;
721956f4
AM		 4586 }
4587
4588 /* Enter this entry into the linker stub hash table. */
4589 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 4590 TRUE, FALSE);
721956f4
AM		 4591 if (stub_entry == NULL)
4592 {
695344c0 4593 /* xgettext:c-format */
8de848d8 4594 info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"),
25f53a85 4595 section->owner, stub_name);
721956f4
AM		 4596 return NULL;
4597 }
4598
6f20ed8a 4599 stub_entry->group = group;
721956f4 4600 stub_entry->stub_offset = 0;
721956f4
AM		 4601 return stub_entry;
4602}
4603
e717da7e
AM		 4604/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
4605 not already done. */
65f38f15 4606
b34976b6 4607static bfd_boolean
e717da7e 4608create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 4609{
e717da7e
AM		 4610 asection *got, *relgot;
4611 flagword flags;
4612 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 4613
0c8d6e5c 4614 if (!is_ppc64_elf (abfd))
0ffa91dd 4615 return FALSE;
4dfe6ac6
NC		 4616 if (htab == NULL)
4617 return FALSE;
0ffa91dd 4618
33e44f2e
AM		 4619 if (!htab->elf.sgot
4620 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
4621 return FALSE;
e717da7e
AM		 4622
4623 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4624 | SEC_LINKER_CREATED);
4625
c456f082 4626 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
e717da7e 4627 if (!got
e717da7e
AM		 4628 || !bfd_set_section_alignment (abfd, got, 3))
4629 return FALSE;
65f38f15 4630
c456f082
AM		 4631 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
4632 flags | SEC_READONLY);
e717da7e 4633 if (!relgot
e717da7e 4634 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 4635 return FALSE;
e717da7e
AM		 4636
4637 ppc64_elf_tdata (abfd)->got = got;
4638 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 4639 return TRUE;
65f38f15 4640}
5bd4f169 4641
82bd7b59 4642/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 4643
b34976b6 4644static bfd_boolean
4ce794b7 4645ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 4646{
65f38f15 4647 struct ppc_link_hash_table *htab;
5bd4f169 4648
65f38f15 4649 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 4650 return FALSE;
65f38f15 4651
e717da7e 4652 htab = ppc_hash_table (info);
4dfe6ac6
NC		 4653 if (htab == NULL)
4654 return FALSE;
4655
3d4d4302 4656 htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss");
0e1862bb 4657 if (!bfd_link_pic (info))
3d4d4302 4658 htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss");
65f38f15 4659
33e44f2e 4660 if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss
0e1862bb 4661 || (!bfd_link_pic (info) && !htab->relbss))
65f38f15
AM		 4662 abort ();
4663
b34976b6 4664 return TRUE;
5bd4f169
AM		 4665}
4666
b31867b6
AM		 4667/* Follow indirect and warning symbol links. */
4668
4669static inline struct bfd_link_hash_entry *
4670follow_link (struct bfd_link_hash_entry *h)
4671{
4672 while (h->type == bfd_link_hash_indirect
4673 || h->type == bfd_link_hash_warning)
4674 h = h->u.i.link;
4675 return h;
4676}
4677
4678static inline struct elf_link_hash_entry *
4679elf_follow_link (struct elf_link_hash_entry *h)
4680{
4681 return (struct elf_link_hash_entry *) follow_link (&h->root);
4682}
4683
4684static inline struct ppc_link_hash_entry *
4685ppc_follow_link (struct ppc_link_hash_entry *h)
4686{
4687 return (struct ppc_link_hash_entry *) follow_link (&h->elf.root);
4688}
4689
40d16e0b
AM		 4690/* Merge PLT info on FROM with that on TO. */
4691
4692static void
4693move_plt_plist (struct ppc_link_hash_entry *from,
4694 struct ppc_link_hash_entry *to)
4695{
4696 if (from->elf.plt.plist != NULL)
4697 {
4698 if (to->elf.plt.plist != NULL)
4699 {
4700 struct plt_entry **entp;
4701 struct plt_entry *ent;
4702
4703 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
4704 {
4705 struct plt_entry *dent;
4706
4707 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
4708 if (dent->addend == ent->addend)
4709 {
4710 dent->plt.refcount += ent->plt.refcount;
4711 *entp = ent->next;
4712 break;
4713 }
4714 if (dent == NULL)
4715 entp = &ent->next;
4716 }
4717 *entp = to->elf.plt.plist;
4718 }
4719
4720 to->elf.plt.plist = from->elf.plt.plist;
4721 from->elf.plt.plist = NULL;
4722 }
4723}
4724
65f38f15
AM		 4725/* Copy the extra info we tack onto an elf_link_hash_entry. */
4726
4727static void
fcfa13d2
AM		 4728ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
4729 struct elf_link_hash_entry *dir,
4730 struct elf_link_hash_entry *ind)
65f38f15
AM		 4731{
4732 struct ppc_link_hash_entry *edir, *eind;
4733
4734 edir = (struct ppc_link_hash_entry *) dir;
4735 eind = (struct ppc_link_hash_entry *) ind;
4736
c79d6685
AM		 4737 edir->is_func |= eind->is_func;
4738 edir->is_func_descriptor |= eind->is_func_descriptor;
4739 edir->tls_mask |= eind->tls_mask;
4740 if (eind->oh != NULL)
4741 edir->oh = ppc_follow_link (eind->oh);
4742
4743 /* If called to transfer flags for a weakdef during processing
4744 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4745 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4746 if (!(ELIMINATE_COPY_RELOCS
4747 && eind->elf.root.type != bfd_link_hash_indirect
4748 && edir->elf.dynamic_adjusted))
4749 edir->elf.non_got_ref |= eind->elf.non_got_ref;
4750
4751 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4752 edir->elf.ref_regular |= eind->elf.ref_regular;
4753 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4754 edir->elf.needs_plt |= eind->elf.needs_plt;
a345bc8d 4755 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
c79d6685 4756
d311bc8b
AM		 4757 /* If we were called to copy over info for a weak sym, don't copy
4758 dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs
4759 in order to simplify readonly_dynrelocs and save a field in the
4760 symbol hash entry, but that means dyn_relocs can't be used in any
4761 tests about a specific symbol, or affect other symbol flags which
4762 are then tested.
4763 Chain weakdefs so we can get from the weakdef back to an alias.
4764 The list is circular so that we don't need to use u.weakdef as
4765 well as this list to look at all aliases. */
4766 if (eind->elf.root.type != bfd_link_hash_indirect)
4767 {
4768 struct ppc_link_hash_entry *cur, *add, *next;
4769
4770 add = eind;
4771 do
4772 {
4773 cur = edir->weakref;
4774 if (cur != NULL)
4775 {
4776 do
4777 {
4778 /* We can be called twice for the same symbols.
4779 Don't make multiple loops. */
4780 if (cur == add)
4781 return;
4782 cur = cur->weakref;
4783 } while (cur != edir);
4784 }
4785 next = add->weakref;
4786 if (cur != add)
4787 {
4788 add->weakref = edir->weakref != NULL ? edir->weakref : edir;
4789 edir->weakref = add;
4790 }
4791 add = next;
4792 } while (add != NULL && add != eind);
4793 return;
4794 }
4795
411e1bfb 4796 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 4797 if (eind->dyn_relocs != NULL)
65f38f15 4798 {
bbd7ec4a
AM		 4799 if (edir->dyn_relocs != NULL)
4800 {
6061a67d
AM		 4801 struct elf_dyn_relocs **pp;
4802 struct elf_dyn_relocs *p;
bbd7ec4a 4803
fcfa13d2 4804 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a
AM		 4805 list. Merge any entries against the same section. */
4806 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
4807 {
6061a67d 4808 struct elf_dyn_relocs *q;
bbd7ec4a
AM		 4809
4810 for (q = edir->dyn_relocs; q != NULL; q = q->next)
4811 if (q->sec == p->sec)
4812 {
4813 q->pc_count += p->pc_count;
4814 q->count += p->count;
4815 *pp = p->next;
4816 break;
4817 }
4818 if (q == NULL)
4819 pp = &p->next;
4820 }
4821 *pp = edir->dyn_relocs;
4822 }
4823
65f38f15
AM		 4824 edir->dyn_relocs = eind->dyn_relocs;
4825 eind->dyn_relocs = NULL;
4826 }
65f38f15 4827
81848ca0
AM		 4828 /* Copy over got entries that we may have already seen to the
4829 symbol which just became indirect. */
411e1bfb
AM		 4830 if (eind->elf.got.glist != NULL)
4831 {
4832 if (edir->elf.got.glist != NULL)
4833 {
4834 struct got_entry **entp;
4835 struct got_entry *ent;
4836
4837 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4838 {
4839 struct got_entry *dent;
4840
4841 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4842 if (dent->addend == ent->addend
e717da7e 4843 && dent->owner == ent->owner
411e1bfb
AM		 4844 && dent->tls_type == ent->tls_type)
4845 {
4846 dent->got.refcount += ent->got.refcount;
4847 *entp = ent->next;
4848 break;
4849 }
4850 if (dent == NULL)
4851 entp = &ent->next;
4852 }
4853 *entp = edir->elf.got.glist;
4854 }
4855
4856 edir->elf.got.glist = eind->elf.got.glist;
4857 eind->elf.got.glist = NULL;
4858 }
4859
4860 /* And plt entries. */
40d16e0b 4861 move_plt_plist (eind, edir);
411e1bfb 4862
fcfa13d2 4863 if (eind->elf.dynindx != -1)
411e1bfb 4864 {
fcfa13d2
AM		 4865 if (edir->elf.dynindx != -1)
4866 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4867 edir->elf.dynstr_index);
411e1bfb
AM		 4868 edir->elf.dynindx = eind->elf.dynindx;
4869 edir->elf.dynstr_index = eind->elf.dynstr_index;
4870 eind->elf.dynindx = -1;
4871 eind->elf.dynstr_index = 0;
4872 }
411e1bfb
AM		 4873}
4874
8387904d
AM		 4875/* Find the function descriptor hash entry from the given function code
4876 hash entry FH. Link the entries via their OH fields. */
4877
4878static struct ppc_link_hash_entry *
b31867b6 4879lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
8387904d
AM		 4880{
4881 struct ppc_link_hash_entry *fdh = fh->oh;
4882
4883 if (fdh == NULL)
4884 {
4885 const char *fd_name = fh->elf.root.root.string + 1;
4886
4887 fdh = (struct ppc_link_hash_entry *)
4888 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
b31867b6
AM		 4889 if (fdh == NULL)
4890 return fdh;
4891
4892 fdh->is_func_descriptor = 1;
4893 fdh->oh = fh;
4894 fh->is_func = 1;
4895 fh->oh = fdh;
8387904d
AM		 4896 }
4897
b31867b6 4898 return ppc_follow_link (fdh);
8387904d
AM		 4899}
4900
bb700d78
AM		 4901/* Make a fake function descriptor sym for the code sym FH. */
4902
4903static struct ppc_link_hash_entry *
4904make_fdh (struct bfd_link_info *info,
908b32fc 4905 struct ppc_link_hash_entry *fh)
bb700d78
AM		 4906{
4907 bfd *abfd;
4908 asymbol *newsym;
4909 struct bfd_link_hash_entry *bh;
4910 struct ppc_link_hash_entry *fdh;
4911
4912 abfd = fh->elf.root.u.undef.abfd;
4913 newsym = bfd_make_empty_symbol (abfd);
4914 newsym->name = fh->elf.root.root.string + 1;
4915 newsym->section = bfd_und_section_ptr;
4916 newsym->value = 0;
908b32fc 4917 newsym->flags = BSF_WEAK;
bb700d78
AM		 4918
4919 bh = NULL;
4920 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4921 newsym->flags, newsym->section,
4922 newsym->value, NULL, FALSE, FALSE,
4923 &bh))
4924 return NULL;
4925
4926 fdh = (struct ppc_link_hash_entry *) bh;
4927 fdh->elf.non_elf = 0;
908b32fc
AM		 4928 fdh->fake = 1;
4929 fdh->is_func_descriptor = 1;
4930 fdh->oh = fh;
4931 fh->is_func = 1;
4932 fh->oh = fdh;
bb700d78
AM		 4933 return fdh;
4934}
4935
8387904d
AM		 4936/* Fix function descriptor symbols defined in .opd sections to be
4937 function type. */
555cd476
AM		 4938
4939static bfd_boolean
c16153ae 4940ppc64_elf_add_symbol_hook (bfd *ibfd,
e054468f 4941 struct bfd_link_info *info,
555cd476 4942 Elf_Internal_Sym *isym,
6911b7dc 4943 const char **name,
555cd476
AM		 4944 flagword *flags ATTRIBUTE_UNUSED,
4945 asection **sec,
b53dfeb2 4946 bfd_vma *value)
555cd476 4947{
a43942db 4948 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
f1885d1e
AM		 4949 && (ibfd->flags & DYNAMIC) == 0
4950 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 4951 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
f64b2e8d 4952
b53dfeb2 4953 if (*sec != NULL
f1885d1e 4954 && strcmp ((*sec)->name, ".opd") == 0)
b53dfeb2
AM		 4955 {
4956 asection *code_sec;
4957
4958 if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
4959 || ELF_ST_TYPE (isym->st_info) == STT_FUNC))
4960 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
4961
4962 /* If the symbol is a function defined in .opd, and the function
4963 code is in a discarded group, let it appear to be undefined. */
0e1862bb 4964 if (!bfd_link_relocatable (info)
b53dfeb2
AM		 4965 && (*sec)->reloc_count != 0
4966 && opd_entry_value (*sec, *value, &code_sec, NULL,
4967 FALSE) != (bfd_vma) -1
4968 && discarded_section (code_sec))
4969 {
4970 *sec = bfd_und_section_ptr;
4971 isym->st_shndx = SHN_UNDEF;
4972 }
4973 }
dbd1e97e
AM		 4974 else if (*sec != NULL
4975 && strcmp ((*sec)->name, ".toc") == 0
4976 && ELF_ST_TYPE (isym->st_info) == STT_OBJECT)
4977 {
4978 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4979 if (htab != NULL)
4980 htab->params->object_in_toc = 1;
4981 }
433817dd 4982
6911b7dc
AM		 4983 if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0)
4984 {
4985 if (abiversion (ibfd) == 0)
4986 set_abiversion (ibfd, 2);
4987 else if (abiversion (ibfd) == 1)
4988 {
4989 info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other"
4990 " for ABI version 1\n"), name);
4991 bfd_set_error (bfd_error_bad_value);
4992 return FALSE;
4993 }
4994 }
4995
555cd476
AM		 4996 return TRUE;
4997}
4998
6911b7dc
AM		 4999/* Merge non-visibility st_other attributes: local entry point. */
5000
5001static void
5002ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h,
5003 const Elf_Internal_Sym *isym,
5004 bfd_boolean definition,
5005 bfd_boolean dynamic)
5006{
5007 if (definition && !dynamic)
5008 h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1))
5009 | ELF_ST_VISIBILITY (h->other));
5010}
5011
8387904d 5012/* This function makes an old ABI object reference to ".bar" cause the
908b32fc
AM		 5013 inclusion of a new ABI object archive that defines "bar".
5014 NAME is a symbol defined in an archive. Return a symbol in the hash
5015 table that might be satisfied by the archive symbols. */
8387904d
AM		 5016
5017static struct elf_link_hash_entry *
5018ppc64_elf_archive_symbol_lookup (bfd *abfd,
5019 struct bfd_link_info *info,
5020 const char *name)
5021{
5022 struct elf_link_hash_entry *h;
5023 char *dot_name;
5024 size_t len;
5025
5026 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
908b32fc
AM		 5027 if (h != NULL
5028 /* Don't return this sym if it is a fake function descriptor
5029 created by add_symbol_adjust. */
5030 && !(h->root.type == bfd_link_hash_undefweak
5031 && ((struct ppc_link_hash_entry *) h)->fake))
8387904d
AM		 5032 return h;
5033
5034 if (name[0] == '.')
5035 return h;
5036
5037 len = strlen (name);
5038 dot_name = bfd_alloc (abfd, len + 2);
5039 if (dot_name == NULL)
5040 return (struct elf_link_hash_entry *) 0 - 1;
5041 dot_name[0] = '.';
5042 memcpy (dot_name + 1, name, len + 1);
5043 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
5044 bfd_release (abfd, dot_name);
5045 return h;
5046}
5047
5048/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM		 5049 new ABI object defines "bar". Well, at least, undefined dot symbols
5050 are made weak. This stops later archive searches from including an
5051 object if we already have a function descriptor definition. It also
35b0ce59
AM		 5052 prevents the linker complaining about undefined symbols.
5053 We also check and correct mismatched symbol visibility here. The
5054 most restrictive visibility of the function descriptor and the
5055 function entry symbol is used. */
8387904d
AM		 5056
5057static bfd_boolean
b3fac117 5058add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
8387904d 5059{
8387904d
AM		 5060 struct ppc_link_hash_table *htab;
5061 struct ppc_link_hash_entry *fdh;
5062
b3fac117 5063 if (eh->elf.root.type == bfd_link_hash_indirect)
8387904d
AM		 5064 return TRUE;
5065
b3fac117
AM		 5066 if (eh->elf.root.type == bfd_link_hash_warning)
5067 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
8387904d 5068
b3fac117
AM		 5069 if (eh->elf.root.root.string[0] != '.')
5070 abort ();
8387904d 5071
b3fac117 5072 htab = ppc_hash_table (info);
4dfe6ac6
NC		 5073 if (htab == NULL)
5074 return FALSE;
5075
b31867b6
AM		 5076 fdh = lookup_fdh (eh, htab);
5077 if (fdh == NULL)
5078 {
0e1862bb 5079 if (!bfd_link_relocatable (info)
b31867b6
AM		 5080 && (eh->elf.root.type == bfd_link_hash_undefined
5081 || eh->elf.root.type == bfd_link_hash_undefweak)
5082 && eh->elf.ref_regular)
5083 {
5084 /* Make an undefweak function descriptor sym, which is enough to
5085 pull in an --as-needed shared lib, but won't cause link
5086 errors. Archives are handled elsewhere. */
5087 fdh = make_fdh (info, eh);
5088 if (fdh == NULL)
5089 return FALSE;
5090 fdh->elf.ref_regular = 1;
5091 }
bb700d78 5092 }
b31867b6 5093 else
8387904d 5094 {
35b0ce59
AM		 5095 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
5096 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
5097 if (entry_vis < descr_vis)
5098 fdh->elf.other += entry_vis - descr_vis;
5099 else if (entry_vis > descr_vis)
5100 eh->elf.other += descr_vis - entry_vis;
5101
e87d886e
AM		 5102 if ((fdh->elf.root.type == bfd_link_hash_defined
5103 || fdh->elf.root.type == bfd_link_hash_defweak)
5104 && eh->elf.root.type == bfd_link_hash_undefined)
35b0ce59
AM		 5105 {
5106 eh->elf.root.type = bfd_link_hash_undefweak;
5107 eh->was_undefined = 1;
5108 htab->twiddled_syms = 1;
5109 }
8387904d 5110 }
99877b66 5111
8387904d
AM		 5112 return TRUE;
5113}
5114
f6c7c3e8
AM		 5115/* Set up opd section info and abiversion for IBFD, and process list
5116 of dot-symbols we made in link_hash_newfunc. */
b3fac117 5117
8387904d 5118static bfd_boolean
f6c7c3e8 5119ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info)
8387904d 5120{
99877b66 5121 struct ppc_link_hash_table *htab;
b3fac117 5122 struct ppc_link_hash_entry **p, *eh;
459609d6 5123 asection *opd = bfd_get_section_by_name (ibfd, ".opd");
433817dd 5124
459609d6 5125 if (opd != NULL && opd->size != 0)
b3fac117 5126 {
459609d6
AM		 5127 if (abiversion (ibfd) == 0)
5128 set_abiversion (ibfd, 1);
8a2058b5 5129 else if (abiversion (ibfd) >= 2)
f6c7c3e8 5130 {
695344c0 5131 /* xgettext:c-format */
459609d6
AM		 5132 info->callbacks->einfo (_("%P: %B .opd not allowed in ABI"
5133 " version %d\n"),
5134 ibfd, abiversion (ibfd));
5135 bfd_set_error (bfd_error_bad_value);
5136 return FALSE;
f6c7c3e8
AM		 5137 }
5138
459609d6
AM		 5139 if ((ibfd->flags & DYNAMIC) == 0
5140 && (opd->flags & SEC_RELOC) != 0
5141 && opd->reloc_count != 0
5142 && !bfd_is_abs_section (opd->output_section))
b3fac117 5143 {
459609d6
AM		 5144 /* Garbage collection needs some extra help with .opd sections.
5145 We don't want to necessarily keep everything referenced by
5146 relocs in .opd, as that would keep all functions. Instead,
5147 if we reference an .opd symbol (a function descriptor), we
5148 want to keep the function code symbol's section. This is
5149 easy for global symbols, but for local syms we need to keep
5150 information about the associated function section. */
5151 bfd_size_type amt;
5152 asection **opd_sym_map;
5153
51aecdc5 5154 amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map);
459609d6
AM		 5155 opd_sym_map = bfd_zalloc (ibfd, amt);
5156 if (opd_sym_map == NULL)
b3fac117 5157 return FALSE;
459609d6
AM		 5158 ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map;
5159 BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal);
5160 ppc64_elf_section_data (opd)->sec_type = sec_opd;
b3fac117
AM		 5161 }
5162 }
5163
459609d6
AM		 5164 if (!is_ppc64_elf (info->output_bfd))
5165 return TRUE;
5166 htab = ppc_hash_table (info);
5167 if (htab == NULL)
5168 return FALSE;
5169
5170 /* For input files without an explicit abiversion in e_flags
5171 we should have flagged any with symbol st_other bits set
5172 as ELFv1 and above flagged those with .opd as ELFv2.
5173 Set the output abiversion if not yet set, and for any input
5174 still ambiguous, take its abiversion from the output.
5175 Differences in ABI are reported later. */
5176 if (abiversion (info->output_bfd) == 0)
5177 set_abiversion (info->output_bfd, abiversion (ibfd));
5178 else if (abiversion (ibfd) == 0)
5179 set_abiversion (ibfd, abiversion (info->output_bfd));
5180
5181 p = &htab->dot_syms;
5182 while ((eh = *p) != NULL)
5183 {
5184 *p = NULL;
5185 if (&eh->elf == htab->elf.hgot)
5186 ;
5187 else if (htab->elf.hgot == NULL
5188 && strcmp (eh->elf.root.root.string, ".TOC.") == 0)
5189 htab->elf.hgot = &eh->elf;
5190 else if (!add_symbol_adjust (eh, info))
5191 return FALSE;
5192 p = &eh->u.next_dot_sym;
5193 }
5194
b3fac117
AM		 5195 /* Clear the list for non-ppc64 input files. */
5196 p = &htab->dot_syms;
5197 while ((eh = *p) != NULL)
5198 {
5199 *p = NULL;
5200 p = &eh->u.next_dot_sym;
5201 }
99877b66
AM		 5202
5203 /* We need to fix the undefs list for any syms we have twiddled to
57e7d118 5204 undefweak. */
99877b66
AM		 5205 if (htab->twiddled_syms)
5206 {
77cfaee6 5207 bfd_link_repair_undef_list (&htab->elf.root);
99877b66
AM		 5208 htab->twiddled_syms = 0;
5209 }
b3fac117 5210 return TRUE;
8387904d
AM		 5211}
5212
97fed1c9
JJ		 5213/* Undo hash table changes when an --as-needed input file is determined
5214 not to be needed. */
5215
5216static bfd_boolean
e5034e59
AM		 5217ppc64_elf_notice_as_needed (bfd *ibfd,
5218 struct bfd_link_info *info,
5219 enum notice_asneeded_action act)
97fed1c9 5220{
e5034e59
AM		 5221 if (act == notice_not_needed)
5222 {
5223 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4dfe6ac6 5224
e5034e59
AM		 5225 if (htab == NULL)
5226 return FALSE;
4dfe6ac6 5227
e5034e59
AM		 5228 htab->dot_syms = NULL;
5229 }
5230 return _bfd_elf_notice_as_needed (ibfd, info, act);
97fed1c9
JJ		 5231}
5232
aa374f67
AM		 5233/* If --just-symbols against a final linked binary, then assume we need
5234 toc adjusting stubs when calling functions defined there. */
5235
5236static void
5237ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info)
5238{
5239 if ((sec->flags & SEC_CODE) != 0
5240 && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0
5241 && is_ppc64_elf (sec->owner))
5242 {
2c3f079f
AM		 5243 if (abiversion (sec->owner) >= 2
5244 || bfd_get_section_by_name (sec->owner, ".opd") != NULL)
aa374f67
AM		 5245 sec->has_toc_reloc = 1;
5246 }
5247 _bfd_elf_link_just_syms (sec, info);
5248}
5249
e054468f 5250static struct plt_entry **
4ce794b7
AM		 5251update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
5252 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 5253{
5254 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e054468f 5255 struct plt_entry **local_plt;
f961d9dd 5256 unsigned char *local_got_tls_masks;
411e1bfb
AM		 5257
5258 if (local_got_ents == NULL)
5259 {
5260 bfd_size_type size = symtab_hdr->sh_info;
5261
e054468f
AM		 5262 size *= (sizeof (*local_got_ents)
5263 + sizeof (*local_plt)
5264 + sizeof (*local_got_tls_masks));
4ce794b7 5265 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb 5266 if (local_got_ents == NULL)
e054468f 5267 return NULL;
411e1bfb
AM		 5268 elf_local_got_ents (abfd) = local_got_ents;
5269 }
5270
e054468f 5271 if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
411e1bfb
AM		 5272 {
5273 struct got_entry *ent;
5274
5275 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 5276 if (ent->addend == r_addend
5277 && ent->owner == abfd
5278 && ent->tls_type == tls_type)
411e1bfb
AM		 5279 break;
5280 if (ent == NULL)
5281 {
5282 bfd_size_type amt = sizeof (*ent);
4ce794b7 5283 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 5284 if (ent == NULL)
5285 return FALSE;
5286 ent->next = local_got_ents[r_symndx];
5287 ent->addend = r_addend;
e717da7e 5288 ent->owner = abfd;
411e1bfb 5289 ent->tls_type = tls_type;
927be08e 5290 ent->is_indirect = FALSE;
411e1bfb
AM		 5291 ent->got.refcount = 0;
5292 local_got_ents[r_symndx] = ent;
5293 }
5294 ent->got.refcount += 1;
5295 }
5296
e054468f 5297 local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
f961d9dd 5298 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
e7b938ca 5299 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM		 5300
5301 return local_plt + r_symndx;
65f38f15
AM		 5302}
5303
411e1bfb 5304static bfd_boolean
e054468f 5305update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend)
1e2f5b6e 5306{
411e1bfb 5307 struct plt_entry *ent;
1e2f5b6e 5308
e054468f 5309 for (ent = *plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5310 if (ent->addend == addend)
5311 break;
5312 if (ent == NULL)
1e2f5b6e 5313 {
411e1bfb 5314 bfd_size_type amt = sizeof (*ent);
4ce794b7 5315 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 5316 if (ent == NULL)
5317 return FALSE;
e054468f 5318 ent->next = *plist;
411e1bfb
AM		 5319 ent->addend = addend;
5320 ent->plt.refcount = 0;
e054468f 5321 *plist = ent;
1e2f5b6e 5322 }
411e1bfb 5323 ent->plt.refcount += 1;
b34976b6 5324 return TRUE;
1e2f5b6e
AM		 5325}
5326
e054468f
AM		 5327static bfd_boolean
5328is_branch_reloc (enum elf_ppc64_reloc_type r_type)
5329{
5330 return (r_type == R_PPC64_REL24
5331 || r_type == R_PPC64_REL14
5332 || r_type == R_PPC64_REL14_BRTAKEN
5333 || r_type == R_PPC64_REL14_BRNTAKEN
5334 || r_type == R_PPC64_ADDR24
5335 || r_type == R_PPC64_ADDR14
5336 || r_type == R_PPC64_ADDR14_BRTAKEN
5337 || r_type == R_PPC64_ADDR14_BRNTAKEN);
5338}
5339
5bd4f169 5340/* Look through the relocs for a section during the first phase, and
65f38f15 5341 calculate needed space in the global offset table, procedure
5d1634d7 5342 linkage table, and dynamic reloc sections. */
5bd4f169 5343
b34976b6 5344static bfd_boolean
4ce794b7
AM		 5345ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
5346 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5347{
65f38f15 5348 struct ppc_link_hash_table *htab;
5bd4f169 5349 Elf_Internal_Shdr *symtab_hdr;
c7e2358a 5350 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 5351 const Elf_Internal_Rela *rel;
5352 const Elf_Internal_Rela *rel_end;
5bd4f169 5353 asection *sreloc;
1e2f5b6e 5354 asection **opd_sym_map;
3a71aa26 5355 struct elf_link_hash_entry *tga, *dottga;
5bd4f169 5356
0e1862bb 5357 if (bfd_link_relocatable (info))
b34976b6 5358 return TRUE;
5bd4f169 5359
680a3378
AM		 5360 /* Don't do anything special with non-loaded, non-alloced sections.
5361 In particular, any relocs in such sections should not affect GOT
5362 and PLT reference counting (ie. we don't allow them to create GOT
5363 or PLT entries), there's no possibility or desire to optimize TLS
5364 relocs, and there's not much point in propagating relocs to shared
5365 libs that the dynamic linker won't relocate. */
5366 if ((sec->flags & SEC_ALLOC) == 0)
5367 return TRUE;
5368
0c8d6e5c 5369 BFD_ASSERT (is_ppc64_elf (abfd));
0ffa91dd 5370
65f38f15 5371 htab = ppc_hash_table (info);
4dfe6ac6
NC		 5372 if (htab == NULL)
5373 return FALSE;
5374
3a71aa26
AM		 5375 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5376 FALSE, FALSE, TRUE);
5377 dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
5378 FALSE, FALSE, TRUE);
0ffa91dd 5379 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 5380 sym_hashes = elf_sym_hashes (abfd);
5bd4f169 5381 sreloc = NULL;
1e2f5b6e 5382 opd_sym_map = NULL;
f6c7c3e8
AM		 5383 if (ppc64_elf_section_data (sec) != NULL
5384 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
5385 opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec;
5bd4f169
AM		 5386
5387 rel_end = relocs + sec->reloc_count;
5388 for (rel = relocs; rel < rel_end; rel++)
5389 {
5390 unsigned long r_symndx;
5391 struct elf_link_hash_entry *h;
04c9666a 5392 enum elf_ppc64_reloc_type r_type;
727fc41e 5393 int tls_type;
7c8fe5c4 5394 struct _ppc64_elf_section_data *ppc64_sec;
cbf95972 5395 struct plt_entry **ifunc, **plt_list;
5bd4f169
AM		 5396
5397 r_symndx = ELF64_R_SYM (rel->r_info);
5398 if (r_symndx < symtab_hdr->sh_info)
5399 h = NULL;
5400 else
973a3492
L		 5401 {
5402 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 5403 h = elf_follow_link (h);
81fbe831
AM		 5404
5405 /* PR15323, ref flags aren't set for references in the same
5406 object. */
5407 h->root.non_ir_ref = 1;
1c865ab2
AM		 5408
5409 if (h == htab->elf.hgot)
5410 sec->has_toc_reloc = 1;
973a3492 5411 }
5bd4f169 5412
727fc41e 5413 tls_type = 0;
e054468f 5414 ifunc = NULL;
25f23106
AM		 5415 if (h != NULL)
5416 {
5417 if (h->type == STT_GNU_IFUNC)
5418 {
5419 h->needs_plt = 1;
5420 ifunc = &h->plt.plist;
5421 }
5422 }
5423 else
5424 {
5425 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5426 abfd, r_symndx);
5427 if (isym == NULL)
5428 return FALSE;
5429
5430 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
5431 {
5432 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
5433 rel->r_addend, PLT_IFUNC);
5434 if (ifunc == NULL)
5435 return FALSE;
5436 }
5437 }
727fc41e 5438
cbf95972 5439 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 5440 switch (r_type)
5bd4f169 5441 {
727fc41e
AM		 5442 case R_PPC64_TLSGD:
5443 case R_PPC64_TLSLD:
5444 /* These special tls relocs tie a call to __tls_get_addr with
5445 its parameter symbol. */
5446 break;
5447
411e1bfb
AM		 5448 case R_PPC64_GOT_TLSLD16:
5449 case R_PPC64_GOT_TLSLD16_LO:
5450 case R_PPC64_GOT_TLSLD16_HI:
5451 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 5452 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5453 goto dogottls;
5454
5455 case R_PPC64_GOT_TLSGD16:
5456 case R_PPC64_GOT_TLSGD16_LO:
5457 case R_PPC64_GOT_TLSGD16_HI:
5458 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5459 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5460 goto dogottls;
5461
5462 case R_PPC64_GOT_TPREL16_DS:
5463 case R_PPC64_GOT_TPREL16_LO_DS:
5464 case R_PPC64_GOT_TPREL16_HI:
5465 case R_PPC64_GOT_TPREL16_HA:
0e1862bb 5466 if (bfd_link_pic (info))
411e1bfb
AM		 5467 info->flags |= DF_STATIC_TLS;
5468 tls_type = TLS_TLS | TLS_TPREL;
5469 goto dogottls;
5470
5471 case R_PPC64_GOT_DTPREL16_DS:
5472 case R_PPC64_GOT_DTPREL16_LO_DS:
5473 case R_PPC64_GOT_DTPREL16_HI:
5474 case R_PPC64_GOT_DTPREL16_HA:
5475 tls_type = TLS_TLS | TLS_DTPREL;
5476 dogottls:
5477 sec->has_tls_reloc = 1;
1a0670f3 5478 /* Fall through */
411e1bfb 5479
5bd4f169 5480 case R_PPC64_GOT16:
5bd4f169 5481 case R_PPC64_GOT16_DS:
65f38f15
AM		 5482 case R_PPC64_GOT16_HA:
5483 case R_PPC64_GOT16_HI:
5484 case R_PPC64_GOT16_LO:
5bd4f169 5485 case R_PPC64_GOT16_LO_DS:
65f38f15 5486 /* This symbol requires a global offset table entry. */
4c52953f 5487 sec->has_toc_reloc = 1;
33c0ec9d
AM		 5488 if (r_type == R_PPC64_GOT_TLSLD16
5489 || r_type == R_PPC64_GOT_TLSGD16
5490 || r_type == R_PPC64_GOT_TPREL16_DS
5491 || r_type == R_PPC64_GOT_DTPREL16_DS
5492 || r_type == R_PPC64_GOT16
5493 || r_type == R_PPC64_GOT16_DS)
5494 {
5495 htab->do_multi_toc = 1;
d77c8a4b 5496 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
33c0ec9d
AM		 5497 }
5498
e717da7e
AM		 5499 if (ppc64_elf_tdata (abfd)->got == NULL
5500 && !create_got_section (abfd, info))
b34976b6 5501 return FALSE;
5bd4f169
AM		 5502
5503 if (h != NULL)
5504 {
411e1bfb
AM		 5505 struct ppc_link_hash_entry *eh;
5506 struct got_entry *ent;
65f38f15 5507
411e1bfb
AM		 5508 eh = (struct ppc_link_hash_entry *) h;
5509 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
5510 if (ent->addend == rel->r_addend
e717da7e 5511 && ent->owner == abfd
411e1bfb
AM		 5512 && ent->tls_type == tls_type)
5513 break;
5514 if (ent == NULL)
5bd4f169 5515 {
411e1bfb 5516 bfd_size_type amt = sizeof (*ent);
4ce794b7 5517 ent = bfd_alloc (abfd, amt);
411e1bfb 5518 if (ent == NULL)
b34976b6 5519 return FALSE;
411e1bfb
AM		 5520 ent->next = eh->elf.got.glist;
5521 ent->addend = rel->r_addend;
e717da7e 5522 ent->owner = abfd;
411e1bfb 5523 ent->tls_type = tls_type;
927be08e 5524 ent->is_indirect = FALSE;
411e1bfb
AM		 5525 ent->got.refcount = 0;
5526 eh->elf.got.glist = ent;
5bd4f169 5527 }
411e1bfb 5528 ent->got.refcount += 1;
e7b938ca 5529 eh->tls_mask |= tls_type;
5bd4f169 5530 }
411e1bfb
AM		 5531 else
5532 /* This is a global offset table entry for a local symbol. */
5533 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5534 rel->r_addend, tls_type))
5535 return FALSE;
a345bc8d
AM		 5536
5537 /* We may also need a plt entry if the symbol turns out to be
5538 an ifunc. */
0e1862bb 5539 if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1)
a345bc8d
AM		 5540 {
5541 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5542 return FALSE;
5543 }
5bd4f169
AM		 5544 break;
5545
5bd4f169 5546 case R_PPC64_PLT16_HA:
65f38f15
AM		 5547 case R_PPC64_PLT16_HI:
5548 case R_PPC64_PLT16_LO:
5549 case R_PPC64_PLT32:
5550 case R_PPC64_PLT64:
cbf95972
AM		 5551 /* This symbol requires a procedure linkage table entry. */
5552 plt_list = ifunc;
5553 if (h != NULL)
e054468f 5554 {
e054468f
AM		 5555 h->needs_plt = 1;
5556 if (h->root.root.string[0] == '.'
5557 && h->root.root.string[1] != '\0')
5558 ((struct ppc_link_hash_entry *) h)->is_func = 1;
cbf95972
AM		 5559 plt_list = &h->plt.plist;
5560 }
5561 if (plt_list == NULL)
5562 {
5563 /* It does not make sense to have a procedure linkage
5564 table entry for a non-ifunc local symbol. */
5565 info->callbacks->einfo
695344c0 5566 /* xgettext:c-format */
cbf95972
AM		 5567 (_("%P: %H: %s reloc against local symbol\n"),
5568 abfd, sec, rel->r_offset,
5569 ppc64_elf_howto_table[r_type]->name);
5570 bfd_set_error (bfd_error_bad_value);
5571 return FALSE;
e054468f 5572 }
cbf95972
AM		 5573 if (!update_plt_info (abfd, plt_list, rel->r_addend))
5574 return FALSE;
5bd4f169
AM		 5575 break;
5576
5577 /* The following relocations don't need to propagate the
5578 relocation if linking a shared object since they are
5579 section relative. */
5580 case R_PPC64_SECTOFF:
5581 case R_PPC64_SECTOFF_LO:
5582 case R_PPC64_SECTOFF_HI:
5583 case R_PPC64_SECTOFF_HA:
5584 case R_PPC64_SECTOFF_DS:
5585 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 5586 case R_PPC64_DTPREL16:
5587 case R_PPC64_DTPREL16_LO:
5588 case R_PPC64_DTPREL16_HI:
5589 case R_PPC64_DTPREL16_HA:
5590 case R_PPC64_DTPREL16_DS:
5591 case R_PPC64_DTPREL16_LO_DS:
f9c6b907
AM		 5592 case R_PPC64_DTPREL16_HIGH:
5593 case R_PPC64_DTPREL16_HIGHA:
411e1bfb
AM		 5594 case R_PPC64_DTPREL16_HIGHER:
5595 case R_PPC64_DTPREL16_HIGHERA:
5596 case R_PPC64_DTPREL16_HIGHEST:
5597 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 5598 break;
5599
ad8e1ba5 5600 /* Nor do these. */
25f23106
AM		 5601 case R_PPC64_REL16:
5602 case R_PPC64_REL16_LO:
5603 case R_PPC64_REL16_HI:
5604 case R_PPC64_REL16_HA:
a680de9a 5605 case R_PPC64_REL16DX_HA:
25f23106
AM		 5606 break;
5607
45965137
AM		 5608 /* Not supported as a dynamic relocation. */
5609 case R_PPC64_ADDR64_LOCAL:
0e1862bb 5610 if (bfd_link_pic (info))
45965137
AM		 5611 {
5612 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5613 ppc_howto_init ();
695344c0 5614 /* xgettext:c-format */
45965137
AM		 5615 info->callbacks->einfo (_("%P: %H: %s reloc unsupported "
5616 "in shared libraries and PIEs.\n"),
5617 abfd, sec, rel->r_offset,
5618 ppc64_elf_howto_table[r_type]->name);
5619 bfd_set_error (bfd_error_bad_value);
5620 return FALSE;
5621 }
5622 break;
5623
ad8e1ba5 5624 case R_PPC64_TOC16:
33c0ec9d
AM		 5625 case R_PPC64_TOC16_DS:
5626 htab->do_multi_toc = 1;
d77c8a4b 5627 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
1a0670f3 5628 /* Fall through. */
ad8e1ba5
AM		 5629 case R_PPC64_TOC16_LO:
5630 case R_PPC64_TOC16_HI:
5631 case R_PPC64_TOC16_HA:
ad8e1ba5 5632 case R_PPC64_TOC16_LO_DS:
4c52953f 5633 sec->has_toc_reloc = 1;
ad8e1ba5
AM		 5634 break;
5635
006589cf
AM		 5636 /* Marker reloc. */
5637 case R_PPC64_ENTRY:
5638 break;
5639
5bd4f169
AM		 5640 /* This relocation describes the C++ object vtable hierarchy.
5641 Reconstruct it for later use during GC. */
5642 case R_PPC64_GNU_VTINHERIT:
c152c796 5643 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5644 return FALSE;
5bd4f169
AM		 5645 break;
5646
5647 /* This relocation describes which C++ vtable entries are actually
5648 used. Record for later use during GC. */
5649 case R_PPC64_GNU_VTENTRY:
d17e0c6e
JB		 5650 BFD_ASSERT (h != NULL);
5651 if (h != NULL
5652 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5653 return FALSE;
5bd4f169
AM		 5654 break;
5655
721956f4
AM		 5656 case R_PPC64_REL14:
5657 case R_PPC64_REL14_BRTAKEN:
5658 case R_PPC64_REL14_BRNTAKEN:
220c76dd
AM		 5659 {
5660 asection *dest = NULL;
5661
5662 /* Heuristic: If jumping outside our section, chances are
5663 we are going to need a stub. */
5664 if (h != NULL)
5665 {
5666 /* If the sym is weak it may be overridden later, so
5667 don't assume we know where a weak sym lives. */
5668 if (h->root.type == bfd_link_hash_defined)
5669 dest = h->root.u.def.section;
5670 }
5671 else
87d72d41
AM		 5672 {
5673 Elf_Internal_Sym *isym;
5674
5675 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5676 abfd, r_symndx);
5677 if (isym == NULL)
5678 return FALSE;
5679
5680 dest = bfd_section_from_elf_index (abfd, isym->st_shndx);
5681 }
5682
220c76dd 5683 if (dest != sec)
7c8fe5c4 5684 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
220c76dd 5685 }
721956f4
AM		 5686 /* Fall through. */
5687
5d1634d7 5688 case R_PPC64_REL24:
cbf95972
AM		 5689 plt_list = ifunc;
5690 if (h != NULL)
5d1634d7 5691 {
e054468f
AM		 5692 h->needs_plt = 1;
5693 if (h->root.root.string[0] == '.'
5694 && h->root.root.string[1] != '\0')
5695 ((struct ppc_link_hash_entry *) h)->is_func = 1;
cbf95972 5696
3a71aa26 5697 if (h == tga || h == dottga)
cbf95972
AM		 5698 {
5699 sec->has_tls_reloc = 1;
5700 if (rel != relocs
5701 && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
5702 || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
5703 /* We have a new-style __tls_get_addr call with
5704 a marker reloc. */
5705 ;
5706 else
5707 /* Mark this section as having an old-style call. */
5708 sec->has_tls_get_addr_call = 1;
5709 }
5710 plt_list = &h->plt.plist;
411e1bfb 5711 }
cbf95972
AM		 5712
5713 /* We may need a .plt entry if the function this reloc
5714 refers to is in a shared lib. */
5715 if (plt_list
5716 && !update_plt_info (abfd, plt_list, rel->r_addend))
5717 return FALSE;
411e1bfb
AM		 5718 break;
5719
cbf95972
AM		 5720 case R_PPC64_ADDR14:
5721 case R_PPC64_ADDR14_BRNTAKEN:
5722 case R_PPC64_ADDR14_BRTAKEN:
5723 case R_PPC64_ADDR24:
5724 goto dodyn;
5725
411e1bfb
AM		 5726 case R_PPC64_TPREL64:
5727 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
0e1862bb 5728 if (bfd_link_pic (info))
411e1bfb
AM		 5729 info->flags |= DF_STATIC_TLS;
5730 goto dotlstoc;
5731
5732 case R_PPC64_DTPMOD64:
5733 if (rel + 1 < rel_end
5734 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
5735 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 5736 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 5737 else
951fd09b 5738 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 5739 goto dotlstoc;
5740
5741 case R_PPC64_DTPREL64:
5742 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
5743 if (rel != relocs
5744 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
5745 && rel[-1].r_offset == rel->r_offset - 8)
5746 /* This is the second reloc of a dtpmod, dtprel pair.
5747 Don't mark with TLS_DTPREL. */
5748 goto dodyn;
5749
5750 dotlstoc:
5751 sec->has_tls_reloc = 1;
5752 if (h != NULL)
5753 {
5754 struct ppc_link_hash_entry *eh;
5755 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5756 eh->tls_mask |= tls_type;
411e1bfb
AM		 5757 }
5758 else
5759 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5760 rel->r_addend, tls_type))
5761 return FALSE;
5762
7c8fe5c4
AM		 5763 ppc64_sec = ppc64_elf_section_data (sec);
5764 if (ppc64_sec->sec_type != sec_toc)
411e1bfb 5765 {
3a71aa26
AM		 5766 bfd_size_type amt;
5767
e7b938ca 5768 /* One extra to simplify get_tls_mask. */
3a71aa26
AM		 5769 amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned);
5770 ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt);
5771 if (ppc64_sec->u.toc.symndx == NULL)
5772 return FALSE;
5773 amt = sec->size * sizeof (bfd_vma) / 8;
5774 ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt);
5775 if (ppc64_sec->u.toc.add == NULL)
411e1bfb 5776 return FALSE;
7c8fe5c4
AM		 5777 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
5778 ppc64_sec->sec_type = sec_toc;
411e1bfb
AM		 5779 }
5780 BFD_ASSERT (rel->r_offset % 8 == 0);
3a71aa26
AM		 5781 ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx;
5782 ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend;
951fd09b
AM		 5783
5784 /* Mark the second slot of a GD or LD entry.
5785 -1 to indicate GD and -2 to indicate LD. */
5786 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3a71aa26 5787 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1;
951fd09b 5788 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3a71aa26 5789 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 5790 goto dodyn;
5791
5792 case R_PPC64_TPREL16:
5793 case R_PPC64_TPREL16_LO:
5794 case R_PPC64_TPREL16_HI:
5795 case R_PPC64_TPREL16_HA:
5796 case R_PPC64_TPREL16_DS:
5797 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 5798 case R_PPC64_TPREL16_HIGH:
5799 case R_PPC64_TPREL16_HIGHA:
411e1bfb
AM		 5800 case R_PPC64_TPREL16_HIGHER:
5801 case R_PPC64_TPREL16_HIGHERA:
5802 case R_PPC64_TPREL16_HIGHEST:
5803 case R_PPC64_TPREL16_HIGHESTA:
0e1862bb 5804 if (bfd_link_pic (info))
411e1bfb 5805 {
afb93314 5806 info->flags |= DF_STATIC_TLS;
411e1bfb 5807 goto dodyn;
5d1634d7
AM		 5808 }
5809 break;
5810
e86ce104 5811 case R_PPC64_ADDR64:
1e2f5b6e 5812 if (opd_sym_map != NULL
1e2f5b6e 5813 && rel + 1 < rel_end
4ce794b7 5814 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 5815 {
8387904d
AM		 5816 if (h != NULL)
5817 {
5818 if (h->root.root.string[0] == '.'
5819 && h->root.root.string[1] != 0
b31867b6 5820 && lookup_fdh ((struct ppc_link_hash_entry *) h, htab))
8387904d
AM		 5821 ;
5822 else
5823 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5824 }
5825 else
5826 {
5827 asection *s;
87d72d41 5828 Elf_Internal_Sym *isym;
1e2f5b6e 5829
87d72d41
AM		 5830 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5831 abfd, r_symndx);
5832 if (isym == NULL)
8387904d 5833 return FALSE;
87d72d41
AM		 5834
5835 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5836 if (s != NULL && s != sec)
51aecdc5 5837 opd_sym_map[OPD_NDX (rel->r_offset)] = s;
8387904d 5838 }
1e2f5b6e 5839 }
e86ce104
AM		 5840 /* Fall through. */
5841
65f38f15
AM		 5842 case R_PPC64_ADDR16:
5843 case R_PPC64_ADDR16_DS:
5844 case R_PPC64_ADDR16_HA:
5845 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 5846 case R_PPC64_ADDR16_HIGH:
5847 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 5848 case R_PPC64_ADDR16_HIGHER:
5849 case R_PPC64_ADDR16_HIGHERA:
5850 case R_PPC64_ADDR16_HIGHEST:
5851 case R_PPC64_ADDR16_HIGHESTA:
5852 case R_PPC64_ADDR16_LO:
5853 case R_PPC64_ADDR16_LO_DS:
0e1862bb 5854 if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1
a345bc8d
AM		 5855 && rel->r_addend == 0)
5856 {
5857 /* We may need a .plt entry if this reloc refers to a
5858 function in a shared lib. */
5859 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5860 return FALSE;
5861 h->pointer_equality_needed = 1;
5862 }
5863 /* Fall through. */
5864
5865 case R_PPC64_REL30:
5866 case R_PPC64_REL32:
5867 case R_PPC64_REL64:
65f38f15 5868 case R_PPC64_ADDR32:
65f38f15
AM		 5869 case R_PPC64_UADDR16:
5870 case R_PPC64_UADDR32:
5871 case R_PPC64_UADDR64:
5bd4f169 5872 case R_PPC64_TOC:
0e1862bb 5873 if (h != NULL && !bfd_link_pic (info))
81848ca0 5874 /* We may need a copy reloc. */
f5385ebf 5875 h->non_got_ref = 1;
81848ca0 5876
41bd81ab 5877 /* Don't propagate .opd relocs. */
1e2f5b6e 5878 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 5879 break;
e86ce104 5880
65f38f15
AM		 5881 /* If we are creating a shared library, and this is a reloc
5882 against a global symbol, or a non PC relative reloc
5883 against a local symbol, then we need to copy the reloc
5884 into the shared library. However, if we are linking with
5885 -Bsymbolic, we do not need to copy a reloc against a
5886 global symbol which is defined in an object we are
5887 including in the link (i.e., DEF_REGULAR is set). At
5888 this point we have not seen all the input files, so it is
5889 possible that DEF_REGULAR is not set now but will be set
5890 later (it is never cleared). In case of a weak definition,
5891 DEF_REGULAR may be cleared later by a strong definition in
5892 a shared library. We account for that possibility below by
f4656909 5893 storing information in the dyn_relocs field of the hash
65f38f15
AM		 5894 table entry. A similar situation occurs when creating
5895 shared libraries and symbol visibility changes render the
5896 symbol local.
5897
5898 If on the other hand, we are creating an executable, we
5899 may need to keep relocations for symbols satisfied by a
5900 dynamic library if we manage to avoid copy relocs for the
5901 symbol. */
411e1bfb 5902 dodyn:
0e1862bb 5903 if ((bfd_link_pic (info)
1d483afe 5904 && (must_be_dyn_reloc (info, r_type)
65f38f15 5905 || (h != NULL
198f1157 5906 && (!SYMBOLIC_BIND (info, h)
65f38f15 5907 || h->root.type == bfd_link_hash_defweak
f5385ebf 5908 || !h->def_regular))))
f4656909 5909 || (ELIMINATE_COPY_RELOCS
0e1862bb 5910 && !bfd_link_pic (info)
65f38f15
AM		 5911 && h != NULL
5912 && (h->root.type == bfd_link_hash_defweak
25f23106 5913 || !h->def_regular))
0e1862bb 5914 || (!bfd_link_pic (info)
25f23106 5915 && ifunc != NULL))
5bd4f169 5916 {
65f38f15
AM		 5917 /* We must copy these reloc types into the output file.
5918 Create a reloc section in dynobj and make room for
5919 this reloc. */
5bd4f169
AM		 5920 if (sreloc == NULL)
5921 {
83bac4b0
NC		 5922 sreloc = _bfd_elf_make_dynamic_reloc_section
5923 (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
65f38f15 5924
5bd4f169 5925 if (sreloc == NULL)
83bac4b0 5926 return FALSE;
5bd4f169
AM		 5927 }
5928
65f38f15
AM		 5929 /* If this is a global symbol, we count the number of
5930 relocations we need for this symbol. */
5931 if (h != NULL)
5932 {
19e08130
AM		 5933 struct elf_dyn_relocs *p;
5934 struct elf_dyn_relocs **head;
5935
ec338859 5936 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
19e08130
AM		 5937 p = *head;
5938 if (p == NULL || p->sec != sec)
5939 {
5940 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5941 if (p == NULL)
5942 return FALSE;
5943 p->next = *head;
5944 *head = p;
5945 p->sec = sec;
5946 p->count = 0;
5947 p->pc_count = 0;
5948 }
5949 p->count += 1;
5950 if (!must_be_dyn_reloc (info, r_type))
5951 p->pc_count += 1;
65f38f15
AM		 5952 }
5953 else
5954 {
ec338859
AM		 5955 /* Track dynamic relocs needed for local syms too.
5956 We really need local syms available to do this
5957 easily. Oh well. */
19e08130
AM		 5958 struct ppc_dyn_relocs *p;
5959 struct ppc_dyn_relocs **head;
5960 bfd_boolean is_ifunc;
ec338859 5961 asection *s;
6edfbbad 5962 void *vpp;
87d72d41 5963 Elf_Internal_Sym *isym;
6edfbbad 5964
87d72d41
AM		 5965 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5966 abfd, r_symndx);
5967 if (isym == NULL)
b34976b6 5968 return FALSE;
ec338859 5969
87d72d41
AM		 5970 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5971 if (s == NULL)
5972 s = sec;
5973
6edfbbad 5974 vpp = &elf_section_data (s)->local_dynrel;
19e08130
AM		 5975 head = (struct ppc_dyn_relocs **) vpp;
5976 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
5977 p = *head;
5978 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
5979 p = p->next;
5980 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
5981 {
5982 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5983 if (p == NULL)
5984 return FALSE;
5985 p->next = *head;
5986 *head = p;
5987 p->sec = sec;
5988 p->ifunc = is_ifunc;
5989 p->count = 0;
5990 }
5991 p->count += 1;
ec338859 5992 }
65f38f15 5993 }
5bd4f169 5994 break;
65f38f15
AM		 5995
5996 default:
96e0dda4 5997 break;
5bd4f169
AM		 5998 }
5999 }
6000
b34976b6 6001 return TRUE;
5bd4f169
AM		 6002}
6003
ee67d69a
AM		 6004/* Merge backend specific data from an object file to the output
6005 object file when linking. */
6006
6007static bfd_boolean
50e03d47 6008ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
ee67d69a 6009{
50e03d47 6010 bfd *obfd = info->output_bfd;
ee67d69a
AM		 6011 unsigned long iflags, oflags;
6012
6013 if ((ibfd->flags & BFD_LINKER_CREATED) != 0)
6014 return TRUE;
6015
6016 if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd))
6017 return TRUE;
6018
50e03d47 6019 if (!_bfd_generic_verify_endian_match (ibfd, info))
ee67d69a
AM		 6020 return FALSE;
6021
6022 iflags = elf_elfheader (ibfd)->e_flags;
6023 oflags = elf_elfheader (obfd)->e_flags;
6024
f6c7c3e8 6025 if (iflags & ~EF_PPC64_ABI)
ee67d69a 6026 {
4eca0228 6027 _bfd_error_handler
695344c0 6028 /* xgettext:c-format */
ee67d69a
AM		 6029 (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags);
6030 bfd_set_error (bfd_error_bad_value);
6031 return FALSE;
6032 }
f6c7c3e8 6033 else if (iflags != oflags && iflags != 0)
ee67d69a 6034 {
4eca0228 6035 _bfd_error_handler
695344c0 6036 /* xgettext:c-format */
ee67d69a
AM		 6037 (_("%B: ABI version %ld is not compatible with ABI version %ld output"),
6038 ibfd, iflags, oflags);
6039 bfd_set_error (bfd_error_bad_value);
6040 return FALSE;
6041 }
6042
50e03d47 6043 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 6044
ee67d69a 6045 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 6046 _bfd_elf_merge_object_attributes (ibfd, info);
ee67d69a
AM		 6047
6048 return TRUE;
6049}
6050
6051static bfd_boolean
6052ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr)
6053{
6054 /* Print normal ELF private data. */
6055 _bfd_elf_print_private_bfd_data (abfd, ptr);
6056
6057 if (elf_elfheader (abfd)->e_flags != 0)
6058 {
6059 FILE *file = ptr;
6060
ee67d69a
AM		 6061 fprintf (file, _("private flags = 0x%lx:"),
6062 elf_elfheader (abfd)->e_flags);
6063
6064 if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0)
6065 fprintf (file, _(" [abiv%ld]"),
6066 elf_elfheader (abfd)->e_flags & EF_PPC64_ABI);
6067 fputc ('\n', file);
6068 }
6069
6070 return TRUE;
6071}
6072
8387904d 6073/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
b53dfeb2
AM		 6074 of the code entry point, and its section, which must be in the same
6075 object as OPD_SEC. Returns (bfd_vma) -1 on error. */
8387904d
AM		 6076
6077static bfd_vma
6078opd_entry_value (asection *opd_sec,
6079 bfd_vma offset,
6080 asection **code_sec,
aef36ac1
AM		 6081 bfd_vma *code_off,
6082 bfd_boolean in_code_sec)
8387904d
AM		 6083{
6084 bfd *opd_bfd = opd_sec->owner;
8860955f 6085 Elf_Internal_Rela *relocs;
8387904d 6086 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 6087 bfd_vma val;
8387904d 6088
9f296da3
AM		 6089 /* No relocs implies we are linking a --just-symbols object, or looking
6090 at a final linked executable with addr2line or somesuch. */
4b85d634
AM		 6091 if (opd_sec->reloc_count == 0)
6092 {
729eabd5 6093 bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents;
3b36f7e6 6094
729eabd5
AM		 6095 if (contents == NULL)
6096 {
6097 if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents))
6098 return (bfd_vma) -1;
6099 ppc64_elf_tdata (opd_bfd)->opd.contents = contents;
6100 }
ee1e4ede 6101
dbb3fbbb 6102 /* PR 17512: file: 64b9dfbb. */
451dfd38 6103 if (offset + 7 >= opd_sec->size || offset + 7 < offset)
dbb3fbbb
NC		 6104 return (bfd_vma) -1;
6105
729eabd5 6106 val = bfd_get_64 (opd_bfd, contents + offset);
aef36ac1
AM		 6107 if (code_sec != NULL)
6108 {
6109 asection *sec, *likely = NULL;
ee1e4ede 6110
aef36ac1 6111 if (in_code_sec)
4b85d634 6112 {
aef36ac1
AM		 6113 sec = *code_sec;
6114 if (sec->vma <= val
6115 && val < sec->vma + sec->size)
6116 likely = sec;
6117 else
6118 val = -1;
6119 }
6120 else
6121 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
6122 if (sec->vma <= val
6123 && (sec->flags & SEC_LOAD) != 0
6124 && (sec->flags & SEC_ALLOC) != 0)
6125 likely = sec;
6126 if (likely != NULL)
6127 {
6128 *code_sec = likely;
6129 if (code_off != NULL)
6130 *code_off = val - likely->vma;
4b85d634
AM		 6131 }
6132 }
aef36ac1 6133 return val;
4b85d634
AM		 6134 }
6135
0c8d6e5c 6136 BFD_ASSERT (is_ppc64_elf (opd_bfd));
0ffa91dd 6137
729eabd5 6138 relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs;
8860955f
AM		 6139 if (relocs == NULL)
6140 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
877a8638
NC		 6141 /* PR 17512: file: df8e1fd6. */
6142 if (relocs == NULL)
6143 return (bfd_vma) -1;
645ea6a9 6144
8387904d 6145 /* Go find the opd reloc at the sym address. */
8860955f 6146 lo = relocs;
8387904d 6147 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 6148 val = (bfd_vma) -1;
8387904d
AM		 6149 while (lo < hi)
6150 {
6151 look = lo + (hi - lo) / 2;
6152 if (look->r_offset < offset)
6153 lo = look + 1;
6154 else if (look->r_offset > offset)
6155 hi = look;
6156 else
6157 {
0ffa91dd
NC		 6158 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd);
6159
8387904d
AM		 6160 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
6161 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
6162 {
6163 unsigned long symndx = ELF64_R_SYM (look->r_info);
b53dfeb2 6164 asection *sec = NULL;
8387904d 6165
b53dfeb2
AM		 6166 if (symndx >= symtab_hdr->sh_info
6167 && elf_sym_hashes (opd_bfd) != NULL)
8387904d
AM		 6168 {
6169 struct elf_link_hash_entry **sym_hashes;
6170 struct elf_link_hash_entry *rh;
6171
6172 sym_hashes = elf_sym_hashes (opd_bfd);
6173 rh = sym_hashes[symndx - symtab_hdr->sh_info];
128205bb
AM		 6174 if (rh != NULL)
6175 {
6176 rh = elf_follow_link (rh);
bb854a36
AM		 6177 if (rh->root.type != bfd_link_hash_defined
6178 && rh->root.type != bfd_link_hash_defweak)
6179 break;
6180 if (rh->root.u.def.section->owner == opd_bfd)
b53dfeb2 6181 {
bb854a36
AM		 6182 val = rh->root.u.def.value;
6183 sec = rh->root.u.def.section;
b53dfeb2
AM		 6184 }
6185 }
6186 }
6187
6188 if (sec == NULL)
6189 {
6190 Elf_Internal_Sym *sym;
6191
6192 if (symndx < symtab_hdr->sh_info)
6193 {
6194 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
6195 if (sym == NULL)
6196 {
6197 size_t symcnt = symtab_hdr->sh_info;
6198 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6199 symcnt, 0,
6200 NULL, NULL, NULL);
6201 if (sym == NULL)
6202 break;
6203 symtab_hdr->contents = (bfd_byte *) sym;
6204 }
6205 sym += symndx;
128205bb
AM		 6206 }
6207 else
6208 {
b53dfeb2
AM		 6209 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6210 1, symndx,
6211 NULL, NULL, NULL);
128205bb
AM		 6212 if (sym == NULL)
6213 break;
128205bb 6214 }
b53dfeb2
AM		 6215 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
6216 if (sec == NULL)
6217 break;
6218 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
6219 val = sym->st_value;
8387904d 6220 }
b53dfeb2 6221
8387904d
AM		 6222 val += look->r_addend;
6223 if (code_off != NULL)
6224 *code_off = val;
6225 if (code_sec != NULL)
aef36ac1
AM		 6226 {
6227 if (in_code_sec && *code_sec != sec)
6228 return -1;
6229 else
6230 *code_sec = sec;
6231 }
b53dfeb2 6232 if (sec->output_section != NULL)
8387904d 6233 val += sec->output_section->vma + sec->output_offset;
8387904d
AM		 6234 }
6235 break;
6236 }
6237 }
645ea6a9 6238
645ea6a9 6239 return val;
8387904d
AM		 6240}
6241
aef36ac1
AM		 6242/* If the ELF symbol SYM might be a function in SEC, return the
6243 function size and set *CODE_OFF to the function's entry point,
6244 otherwise return zero. */
9f296da3 6245
aef36ac1
AM		 6246static bfd_size_type
6247ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec,
6248 bfd_vma *code_off)
9f296da3 6249{
aef36ac1
AM		 6250 bfd_size_type size;
6251
6252 if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT
6253 | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0)
6254 return 0;
6255
6256 size = 0;
6257 if (!(sym->flags & BSF_SYNTHETIC))
6258 size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
6259
6260 if (strcmp (sym->section->name, ".opd") == 0)
9f296da3 6261 {
b07bca4e
AM		 6262 struct _opd_sec_data *opd = get_opd_info (sym->section);
6263 bfd_vma symval = sym->value;
6264
6265 if (opd != NULL
6266 && opd->adjust != NULL
6267 && elf_section_data (sym->section)->relocs != NULL)
6268 {
6269 /* opd_entry_value will use cached relocs that have been
6270 adjusted, but with raw symbols. That means both local
6271 and global symbols need adjusting. */
6272 long adjust = opd->adjust[OPD_NDX (symval)];
6273 if (adjust == -1)
6274 return 0;
6275 symval += adjust;
6276 }
6277
6278 if (opd_entry_value (sym->section, symval,
aef36ac1
AM		 6279 &sec, code_off, TRUE) == (bfd_vma) -1)
6280 return 0;
6281 /* An old ABI binary with dot-syms has a size of 24 on the .opd
6282 symbol. This size has nothing to do with the code size of the
6283 function, which is what we're supposed to return, but the
6284 code size isn't available without looking up the dot-sym.
6285 However, doing that would be a waste of time particularly
6286 since elf_find_function will look at the dot-sym anyway.
6287 Now, elf_find_function will keep the largest size of any
6288 function sym found at the code address of interest, so return
6289 1 here to avoid it incorrectly caching a larger function size
6290 for a small function. This does mean we return the wrong
6291 size for a new-ABI function of size 24, but all that does is
6292 disable caching for such functions. */
6293 if (size == 24)
6294 size = 1;
9f296da3 6295 }
aef36ac1
AM		 6296 else
6297 {
6298 if (sym->section != sec)
6299 return 0;
6300 *code_off = sym->value;
6301 }
6302 if (size == 0)
6303 size = 1;
6304 return size;
9f296da3
AM		 6305}
6306
854b41e7
AM		 6307/* Return true if symbol is defined in a regular object file. */
6308
6309static bfd_boolean
6310is_static_defined (struct elf_link_hash_entry *h)
6311{
6312 return ((h->root.type == bfd_link_hash_defined
6313 || h->root.type == bfd_link_hash_defweak)
6314 && h->root.u.def.section != NULL
6315 && h->root.u.def.section->output_section != NULL);
6316}
6317
b31867b6
AM		 6318/* If FDH is a function descriptor symbol, return the associated code
6319 entry symbol if it is defined. Return NULL otherwise. */
6320
6321static struct ppc_link_hash_entry *
6322defined_code_entry (struct ppc_link_hash_entry *fdh)
6323{
6324 if (fdh->is_func_descriptor)
6325 {
6326 struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh);
6327 if (fh->elf.root.type == bfd_link_hash_defined
6328 || fh->elf.root.type == bfd_link_hash_defweak)
6329 return fh;
6330 }
6331 return NULL;
6332}
6333
6334/* If FH is a function code entry symbol, return the associated
6335 function descriptor symbol if it is defined. Return NULL otherwise. */
6336
6337static struct ppc_link_hash_entry *
6338defined_func_desc (struct ppc_link_hash_entry *fh)
6339{
6340 if (fh->oh != NULL
6341 && fh->oh->is_func_descriptor)
6342 {
6343 struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh);
6344 if (fdh->elf.root.type == bfd_link_hash_defined
6345 || fdh->elf.root.type == bfd_link_hash_defweak)
6346 return fdh;
6347 }
6348 return NULL;
6349}
6350
74f0fb50
AM		 6351/* Mark all our entry sym sections, both opd and code section. */
6352
6353static void
6354ppc64_elf_gc_keep (struct bfd_link_info *info)
6355{
6356 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6357 struct bfd_sym_chain *sym;
6358
4dfe6ac6
NC		 6359 if (htab == NULL)
6360 return;
6361
74f0fb50
AM		 6362 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
6363 {
b31867b6 6364 struct ppc_link_hash_entry *eh, *fh;
74f0fb50
AM		 6365 asection *sec;
6366
6367 eh = (struct ppc_link_hash_entry *)
b31867b6 6368 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE);
74f0fb50
AM		 6369 if (eh == NULL)
6370 continue;
6371 if (eh->elf.root.type != bfd_link_hash_defined
6372 && eh->elf.root.type != bfd_link_hash_defweak)
6373 continue;
6374
b31867b6
AM		 6375 fh = defined_code_entry (eh);
6376 if (fh != NULL)
74f0fb50 6377 {
b31867b6 6378 sec = fh->elf.root.u.def.section;
74f0fb50
AM		 6379 sec->flags |= SEC_KEEP;
6380 }
6381 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6382 && opd_entry_value (eh->elf.root.u.def.section,
6383 eh->elf.root.u.def.value,
aef36ac1 6384 &sec, NULL, FALSE) != (bfd_vma) -1)
74f0fb50
AM		 6385 sec->flags |= SEC_KEEP;
6386
6387 sec = eh->elf.root.u.def.section;
6388 sec->flags |= SEC_KEEP;
6389 }
6390}
6391
64d03ab5
AM		 6392/* Mark sections containing dynamically referenced symbols. When
6393 building shared libraries, we must assume that any visible symbol is
6394 referenced. */
6395
6396static bfd_boolean
6397ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
6398{
6399 struct bfd_link_info *info = (struct bfd_link_info *) inf;
6400 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
b31867b6 6401 struct ppc_link_hash_entry *fdh;
b407645f 6402 struct bfd_elf_dynamic_list *d = info->dynamic_list;
64d03ab5 6403
64d03ab5 6404 /* Dynamic linking info is on the func descriptor sym. */
b31867b6
AM		 6405 fdh = defined_func_desc (eh);
6406 if (fdh != NULL)
6407 eh = fdh;
64d03ab5
AM		 6408
6409 if ((eh->elf.root.type == bfd_link_hash_defined
6410 || eh->elf.root.type == bfd_link_hash_defweak)
6411 && (eh->elf.ref_dynamic
1c9177d9 6412 || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf))
64d03ab5 6413 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
4c58e0d8 6414 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN
0e1862bb 6415 && (!bfd_link_executable (info)
b407645f
AM		 6416 || info->export_dynamic
6417 || (eh->elf.dynamic
6418 && d != NULL
6419 && (*d->match) (&d->head, NULL, eh->elf.root.root.string)))
4c58e0d8
AM		 6420 && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL
6421 || !bfd_hide_sym_by_version (info->version_info,
6422 eh->elf.root.root.string)))))
64d03ab5
AM		 6423 {
6424 asection *code_sec;
b31867b6 6425 struct ppc_link_hash_entry *fh;
64d03ab5
AM		 6426
6427 eh->elf.root.u.def.section->flags |= SEC_KEEP;
6428
6429 /* Function descriptor syms cause the associated
6430 function code sym section to be marked. */
b31867b6
AM		 6431 fh = defined_code_entry (eh);
6432 if (fh != NULL)
6433 {
6434 code_sec = fh->elf.root.u.def.section;
6435 code_sec->flags |= SEC_KEEP;
6436 }
64d03ab5
AM		 6437 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6438 && opd_entry_value (eh->elf.root.u.def.section,
6439 eh->elf.root.u.def.value,
aef36ac1 6440 &code_sec, NULL, FALSE) != (bfd_vma) -1)
64d03ab5
AM		 6441 code_sec->flags |= SEC_KEEP;
6442 }
6443
6444 return TRUE;
6445}
6446
5bd4f169
AM		 6447/* Return the section that should be marked against GC for a given
6448 relocation. */
6449
6450static asection *
4ce794b7 6451ppc64_elf_gc_mark_hook (asection *sec,
fb34365b 6452 struct bfd_link_info *info,
4ce794b7
AM		 6453 Elf_Internal_Rela *rel,
6454 struct elf_link_hash_entry *h,
6455 Elf_Internal_Sym *sym)
5bd4f169 6456{
ccfa59ea
AM		 6457 asection *rsec;
6458
ccfa59ea
AM		 6459 /* Syms return NULL if we're marking .opd, so we avoid marking all
6460 function sections, as all functions are referenced in .opd. */
6461 rsec = NULL;
6462 if (get_opd_info (sec) != NULL)
6463 return rsec;
1e2f5b6e 6464
5bd4f169
AM		 6465 if (h != NULL)
6466 {
04c9666a 6467 enum elf_ppc64_reloc_type r_type;
b31867b6 6468 struct ppc_link_hash_entry *eh, *fh, *fdh;
a33d1f77 6469
4ce794b7 6470 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 6471 switch (r_type)
5bd4f169
AM		 6472 {
6473 case R_PPC64_GNU_VTINHERIT:
6474 case R_PPC64_GNU_VTENTRY:
6475 break;
6476
6477 default:
6478 switch (h->root.type)
6479 {
6480 case bfd_link_hash_defined:
6481 case bfd_link_hash_defweak:
ccfa59ea 6482 eh = (struct ppc_link_hash_entry *) h;
b31867b6
AM		 6483 fdh = defined_func_desc (eh);
6484 if (fdh != NULL)
6485 eh = fdh;
1e2f5b6e
AM		 6486
6487 /* Function descriptor syms cause the associated
6488 function code sym section to be marked. */
b31867b6
AM		 6489 fh = defined_code_entry (eh);
6490 if (fh != NULL)
ccfa59ea
AM		 6491 {
6492 /* They also mark their opd section. */
74f0fb50 6493 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 6494
b31867b6 6495 rsec = fh->elf.root.u.def.section;
ccfa59ea 6496 }
8387904d
AM		 6497 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6498 && opd_entry_value (eh->elf.root.u.def.section,
6499 eh->elf.root.u.def.value,
aef36ac1 6500 &rsec, NULL, FALSE) != (bfd_vma) -1)
74f0fb50 6501 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 6502 else
1e2f5b6e
AM		 6503 rsec = h->root.u.def.section;
6504 break;
5bd4f169
AM		 6505
6506 case bfd_link_hash_common:
1e2f5b6e
AM		 6507 rsec = h->root.u.c.p->section;
6508 break;
5bd4f169
AM		 6509
6510 default:
fb34365b 6511 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5bd4f169
AM		 6512 }
6513 }
6514 }
6515 else
6516 {
74f0fb50 6517 struct _opd_sec_data *opd;
1e2f5b6e
AM		 6518
6519 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
74f0fb50
AM		 6520 opd = get_opd_info (rsec);
6521 if (opd != NULL && opd->func_sec != NULL)
ccfa59ea 6522 {
74f0fb50 6523 rsec->gc_mark = 1;
ccfa59ea 6524
51aecdc5 6525 rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)];
ccfa59ea 6526 }
5bd4f169
AM		 6527 }
6528
1e2f5b6e 6529 return rsec;
5bd4f169
AM		 6530}
6531
65f38f15
AM		 6532/* Update the .got, .plt. and dynamic reloc reference counts for the
6533 section being removed. */
5bd4f169 6534
b34976b6 6535static bfd_boolean
4ce794b7
AM		 6536ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
6537 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 6538{
411e1bfb 6539 struct ppc_link_hash_table *htab;
5bd4f169
AM		 6540 Elf_Internal_Shdr *symtab_hdr;
6541 struct elf_link_hash_entry **sym_hashes;
411e1bfb 6542 struct got_entry **local_got_ents;
5bd4f169 6543 const Elf_Internal_Rela *rel, *relend;
5bd4f169 6544
0e1862bb 6545 if (bfd_link_relocatable (info))
7dda2462
TG		 6546 return TRUE;
6547
680a3378
AM		 6548 if ((sec->flags & SEC_ALLOC) == 0)
6549 return TRUE;
6550
ec338859
AM		 6551 elf_section_data (sec)->local_dynrel = NULL;
6552
411e1bfb 6553 htab = ppc_hash_table (info);
4dfe6ac6
NC		 6554 if (htab == NULL)
6555 return FALSE;
6556
0ffa91dd 6557 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 6558 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 6559 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 6560
6561 relend = relocs + sec->reloc_count;
6562 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 6563 {
6564 unsigned long r_symndx;
04c9666a 6565 enum elf_ppc64_reloc_type r_type;
58ac9f71 6566 struct elf_link_hash_entry *h = NULL;
cbf95972 6567 struct plt_entry **plt_list;
f961d9dd 6568 unsigned char tls_type = 0;
5bd4f169 6569
a33d1f77 6570 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 6571 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 6572 if (r_symndx >= symtab_hdr->sh_info)
6573 {
6574 struct ppc_link_hash_entry *eh;
6061a67d
AM		 6575 struct elf_dyn_relocs **pp;
6576 struct elf_dyn_relocs *p;
58ac9f71
AM		 6577
6578 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 6579 h = elf_follow_link (h);
58ac9f71
AM		 6580 eh = (struct ppc_link_hash_entry *) h;
6581
6582 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
6583 if (p->sec == sec)
6584 {
6585 /* Everything must go for SEC. */
6586 *pp = p->next;
6587 break;
6588 }
6589 }
6590
a33d1f77
AM		 6591 switch (r_type)
6592 {
411e1bfb
AM		 6593 case R_PPC64_GOT_TLSLD16:
6594 case R_PPC64_GOT_TLSLD16_LO:
6595 case R_PPC64_GOT_TLSLD16_HI:
6596 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 6597 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 6598 goto dogot;
6599
6600 case R_PPC64_GOT_TLSGD16:
6601 case R_PPC64_GOT_TLSGD16_LO:
6602 case R_PPC64_GOT_TLSGD16_HI:
6603 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 6604 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 6605 goto dogot;
6606
6607 case R_PPC64_GOT_TPREL16_DS:
6608 case R_PPC64_GOT_TPREL16_LO_DS:
6609 case R_PPC64_GOT_TPREL16_HI:
6610 case R_PPC64_GOT_TPREL16_HA:
6611 tls_type = TLS_TLS | TLS_TPREL;
6612 goto dogot;
6613
6614 case R_PPC64_GOT_DTPREL16_DS:
6615 case R_PPC64_GOT_DTPREL16_LO_DS:
6616 case R_PPC64_GOT_DTPREL16_HI:
6617 case R_PPC64_GOT_DTPREL16_HA:
6618 tls_type = TLS_TLS | TLS_DTPREL;
6619 goto dogot;
6620
a33d1f77
AM		 6621 case R_PPC64_GOT16:
6622 case R_PPC64_GOT16_DS:
6623 case R_PPC64_GOT16_HA:
6624 case R_PPC64_GOT16_HI:
6625 case R_PPC64_GOT16_LO:
6626 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 6627 dogot:
6628 {
6629 struct got_entry *ent;
6630
58ac9f71
AM		 6631 if (h != NULL)
6632 ent = h->got.glist;
411e1bfb
AM		 6633 else
6634 ent = local_got_ents[r_symndx];
6635
6636 for (; ent != NULL; ent = ent->next)
6637 if (ent->addend == rel->r_addend
e717da7e 6638 && ent->owner == abfd
411e1bfb
AM		 6639 && ent->tls_type == tls_type)
6640 break;
6641 if (ent == NULL)
6642 abort ();
6643 if (ent->got.refcount > 0)
6644 ent->got.refcount -= 1;
6645 }
a33d1f77 6646 break;
65f38f15 6647
a33d1f77
AM		 6648 case R_PPC64_PLT16_HA:
6649 case R_PPC64_PLT16_HI:
6650 case R_PPC64_PLT16_LO:
6651 case R_PPC64_PLT32:
6652 case R_PPC64_PLT64:
721956f4
AM		 6653 case R_PPC64_REL14:
6654 case R_PPC64_REL14_BRNTAKEN:
6655 case R_PPC64_REL14_BRTAKEN:
5d1634d7 6656 case R_PPC64_REL24:
cbf95972 6657 plt_list = NULL;
58ac9f71 6658 if (h != NULL)
cbf95972
AM		 6659 plt_list = &h->plt.plist;
6660 else if (local_got_ents != NULL)
6661 {
6662 struct plt_entry **local_plt = (struct plt_entry **)
6663 (local_got_ents + symtab_hdr->sh_info);
6664 unsigned char *local_got_tls_masks = (unsigned char *)
6665 (local_plt + symtab_hdr->sh_info);
6666 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
6667 plt_list = local_plt + r_symndx;
6668 }
6669 if (plt_list)
5d1634d7 6670 {
411e1bfb
AM		 6671 struct plt_entry *ent;
6672
cbf95972 6673 for (ent = *plt_list; ent != NULL; ent = ent->next)
411e1bfb
AM		 6674 if (ent->addend == rel->r_addend)
6675 break;
7c6c1722 6676 if (ent != NULL && ent->plt.refcount > 0)
411e1bfb 6677 ent->plt.refcount -= 1;
5d1634d7 6678 }
e86ce104 6679 break;
5d1634d7 6680
a33d1f77
AM		 6681 default:
6682 break;
6683 }
6684 }
b34976b6 6685 return TRUE;
5bd4f169
AM		 6686}
6687
deb0e272
AM		 6688/* The maximum size of .sfpr. */
6689#define SFPR_MAX (218*4)
6690
6691struct sfpr_def_parms
6692{
699733f6
AM		 6693 const char name[12];
6694 unsigned char lo, hi;
deb0e272
AM		 6695 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
6696 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
6697};
6698
a4b6fadd
AM		 6699/* Auto-generate _save*, _rest* functions in .sfpr.
6700 If STUB_SEC is non-null, define alias symbols in STUB_SEC
6701 instead. */
deb0e272 6702
4dfe6ac6 6703static bfd_boolean
a4b6fadd
AM		 6704sfpr_define (struct bfd_link_info *info,
6705 const struct sfpr_def_parms *parm,
6706 asection *stub_sec)
deb0e272
AM		 6707{
6708 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6709 unsigned int i;
6710 size_t len = strlen (parm->name);
6711 bfd_boolean writing = FALSE;
699733f6 6712 char sym[16];
deb0e272 6713
4dfe6ac6
NC		 6714 if (htab == NULL)
6715 return FALSE;
6716
deb0e272
AM		 6717 memcpy (sym, parm->name, len);
6718 sym[len + 2] = 0;
6719
6720 for (i = parm->lo; i <= parm->hi; i++)
6721 {
a4b6fadd 6722 struct ppc_link_hash_entry *h;
deb0e272
AM		 6723
6724 sym[len + 0] = i / 10 + '0';
6725 sym[len + 1] = i % 10 + '0';
a4b6fadd 6726 h = (struct ppc_link_hash_entry *)
b32547cd 6727 elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE);
a4b6fadd 6728 if (stub_sec != NULL)
deb0e272 6729 {
a4b6fadd
AM		 6730 if (h != NULL
6731 && h->elf.root.type == bfd_link_hash_defined
6732 && h->elf.root.u.def.section == htab->sfpr)
6733 {
6734 struct elf_link_hash_entry *s;
6735 char buf[32];
6736 sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym);
6737 s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE);
6738 if (s == NULL)
6739 return FALSE;
6740 if (s->root.type == bfd_link_hash_new
6741 || (s->root.type = bfd_link_hash_defined
6742 && s->root.u.def.section == stub_sec))
6743 {
6744 s->root.type = bfd_link_hash_defined;
6745 s->root.u.def.section = stub_sec;
6746 s->root.u.def.value = (stub_sec->size
6747 + h->elf.root.u.def.value);
6748 s->ref_regular = 1;
6749 s->def_regular = 1;
6750 s->ref_regular_nonweak = 1;
6751 s->forced_local = 1;
6752 s->non_elf = 0;
6753 s->root.linker_def = 1;
6754 }
6755 }
6756 continue;
6757 }
6758 if (h != NULL)
6759 {
6760 h->save_res = 1;
6761 if (!h->elf.def_regular)
deb0e272 6762 {
a4b6fadd
AM		 6763 h->elf.root.type = bfd_link_hash_defined;
6764 h->elf.root.u.def.section = htab->sfpr;
6765 h->elf.root.u.def.value = htab->sfpr->size;
6766 h->elf.type = STT_FUNC;
6767 h->elf.def_regular = 1;
b32547cd 6768 h->elf.non_elf = 0;
a4b6fadd
AM		 6769 _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE);
6770 writing = TRUE;
deb0e272 6771 if (htab->sfpr->contents == NULL)
a4b6fadd
AM		 6772 {
6773 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
6774 if (htab->sfpr->contents == NULL)
6775 return FALSE;
6776 }
deb0e272
AM		 6777 }
6778 }
6779 if (writing)
6780 {
6781 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
6782 if (i != parm->hi)
6783 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
6784 else
6785 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
6786 htab->sfpr->size = p - htab->sfpr->contents;
6787 }
6788 }
6789
6790 return TRUE;
6791}
6792
6793static bfd_byte *
6794savegpr0 (bfd *abfd, bfd_byte *p, int r)
6795{
6796 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6797 return p + 4;
6798}
6799
6800static bfd_byte *
6801savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
6802{
6803 p = savegpr0 (abfd, p, r);
a078d95a 6804 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6805 p = p + 4;
6806 bfd_put_32 (abfd, BLR, p);
6807 return p + 4;
6808}
6809
6810static bfd_byte *
6811restgpr0 (bfd *abfd, bfd_byte *p, int r)
6812{
6813 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6814 return p + 4;
6815}
6816
6817static bfd_byte *
6818restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
6819{
a078d95a 6820 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6821 p = p + 4;
6822 p = restgpr0 (abfd, p, r);
6823 bfd_put_32 (abfd, MTLR_R0, p);
6824 p = p + 4;
6825 if (r == 29)
6826 {
6827 p = restgpr0 (abfd, p, 30);
6828 p = restgpr0 (abfd, p, 31);
6829 }
6830 bfd_put_32 (abfd, BLR, p);
6831 return p + 4;
6832}
6833
6834static bfd_byte *
6835savegpr1 (bfd *abfd, bfd_byte *p, int r)
6836{
6837 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6838 return p + 4;
6839}
6840
6841static bfd_byte *
6842savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
6843{
6844 p = savegpr1 (abfd, p, r);
6845 bfd_put_32 (abfd, BLR, p);
6846 return p + 4;
6847}
6848
6849static bfd_byte *
6850restgpr1 (bfd *abfd, bfd_byte *p, int r)
6851{
6852 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6853 return p + 4;
6854}
6855
6856static bfd_byte *
6857restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
6858{
6859 p = restgpr1 (abfd, p, r);
6860 bfd_put_32 (abfd, BLR, p);
6861 return p + 4;
6862}
6863
6864static bfd_byte *
6865savefpr (bfd *abfd, bfd_byte *p, int r)
6866{
6867 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6868 return p + 4;
6869}
6870
6871static bfd_byte *
6872savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
6873{
6874 p = savefpr (abfd, p, r);
a078d95a 6875 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6876 p = p + 4;
6877 bfd_put_32 (abfd, BLR, p);
6878 return p + 4;
6879}
6880
6881static bfd_byte *
6882restfpr (bfd *abfd, bfd_byte *p, int r)
6883{
6884 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6885 return p + 4;
6886}
6887
6888static bfd_byte *
6889restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
6890{
a078d95a 6891 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6892 p = p + 4;
6893 p = restfpr (abfd, p, r);
6894 bfd_put_32 (abfd, MTLR_R0, p);
6895 p = p + 4;
6896 if (r == 29)
6897 {
6898 p = restfpr (abfd, p, 30);
6899 p = restfpr (abfd, p, 31);
6900 }
6901 bfd_put_32 (abfd, BLR, p);
6902 return p + 4;
6903}
6904
6905static bfd_byte *
6906savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
6907{
6908 p = savefpr (abfd, p, r);
6909 bfd_put_32 (abfd, BLR, p);
6910 return p + 4;
6911}
6912
6913static bfd_byte *
6914restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
6915{
6916 p = restfpr (abfd, p, r);
6917 bfd_put_32 (abfd, BLR, p);
6918 return p + 4;
6919}
6920
6921static bfd_byte *
6922savevr (bfd *abfd, bfd_byte *p, int r)
6923{
6924 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6925 p = p + 4;
6926 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
6927 return p + 4;
6928}
6929
6930static bfd_byte *
6931savevr_tail (bfd *abfd, bfd_byte *p, int r)
6932{
6933 p = savevr (abfd, p, r);
6934 bfd_put_32 (abfd, BLR, p);
6935 return p + 4;
6936}
6937
6938static bfd_byte *
6939restvr (bfd *abfd, bfd_byte *p, int r)
6940{
6941 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6942 p = p + 4;
6943 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
6944 return p + 4;
6945}
6946
6947static bfd_byte *
6948restvr_tail (bfd *abfd, bfd_byte *p, int r)
6949{
6950 p = restvr (abfd, p, r);
6951 bfd_put_32 (abfd, BLR, p);
6952 return p + 4;
6953}
6954
e86ce104
AM		 6955/* Called via elf_link_hash_traverse to transfer dynamic linking
6956 information on function code symbol entries to their corresponding
6957 function descriptor symbol entries. */
deb0e272 6958
b34976b6 6959static bfd_boolean
4ce794b7 6960func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 6961{
e86ce104 6962 struct bfd_link_info *info;
65f38f15 6963 struct ppc_link_hash_table *htab;
411e1bfb 6964 struct plt_entry *ent;
50bc7936
AM		 6965 struct ppc_link_hash_entry *fh;
6966 struct ppc_link_hash_entry *fdh;
6967 bfd_boolean force_local;
5bd4f169 6968
50bc7936
AM		 6969 fh = (struct ppc_link_hash_entry *) h;
6970 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 6971 return TRUE;
e86ce104 6972
4ce794b7 6973 info = inf;
65f38f15 6974 htab = ppc_hash_table (info);
4dfe6ac6
NC		 6975 if (htab == NULL)
6976 return FALSE;
5bd4f169 6977
c09bdfe5
AM		 6978 /* Resolve undefined references to dot-symbols as the value
6979 in the function descriptor, if we have one in a regular object.
6980 This is to satisfy cases like ".quad .foo". Calls to functions
6981 in dynamic objects are handled elsewhere. */
6982 if (fh->elf.root.type == bfd_link_hash_undefweak
6983 && fh->was_undefined
b31867b6
AM		 6984 && (fdh = defined_func_desc (fh)) != NULL
6985 && get_opd_info (fdh->elf.root.u.def.section) != NULL
6986 && opd_entry_value (fdh->elf.root.u.def.section,
6987 fdh->elf.root.u.def.value,
c09bdfe5 6988 &fh->elf.root.u.def.section,
aef36ac1 6989 &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1)
c09bdfe5 6990 {
b31867b6 6991 fh->elf.root.type = fdh->elf.root.type;
f5385ebf 6992 fh->elf.forced_local = 1;
b31867b6
AM		 6993 fh->elf.def_regular = fdh->elf.def_regular;
6994 fh->elf.def_dynamic = fdh->elf.def_dynamic;
c09bdfe5
AM		 6995 }
6996
e86ce104
AM		 6997 /* If this is a function code symbol, transfer dynamic linking
6998 information to the function descriptor symbol. */
50bc7936 6999 if (!fh->is_func)
b34976b6 7000 return TRUE;
e86ce104 7001
50bc7936 7002 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 7003 if (ent->plt.refcount > 0)
7004 break;
50bc7936
AM		 7005 if (ent == NULL
7006 || fh->elf.root.root.string[0] != '.'
7007 || fh->elf.root.root.string[1] == '\0')
7008 return TRUE;
5bd4f169 7009
50bc7936
AM		 7010 /* Find the corresponding function descriptor symbol. Create it
7011 as undefined if necessary. */
5bd4f169 7012
b31867b6 7013 fdh = lookup_fdh (fh, htab);
50bc7936 7014 if (fdh == NULL
0e1862bb 7015 && !bfd_link_executable (info)
50bc7936
AM		 7016 && (fh->elf.root.type == bfd_link_hash_undefined
7017 || fh->elf.root.type == bfd_link_hash_undefweak))
7018 {
908b32fc 7019 fdh = make_fdh (info, fh);
bb700d78
AM		 7020 if (fdh == NULL)
7021 return FALSE;
50bc7936 7022 }
648cca2c 7023
908b32fc 7024 /* Fake function descriptors are made undefweak. If the function
433817dd
AM		 7025 code symbol is strong undefined, make the fake sym the same.
7026 If the function code symbol is defined, then force the fake
7027 descriptor local; We can't support overriding of symbols in a
7028 shared library on a fake descriptor. */
908b32fc
AM		 7029
7030 if (fdh != NULL
7031 && fdh->fake
433817dd 7032 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 7033 {
433817dd
AM		 7034 if (fh->elf.root.type == bfd_link_hash_undefined)
7035 {
7036 fdh->elf.root.type = bfd_link_hash_undefined;
7037 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
7038 }
7039 else if (fh->elf.root.type == bfd_link_hash_defined
7040 || fh->elf.root.type == bfd_link_hash_defweak)
7041 {
7042 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
7043 }
908b32fc
AM		 7044 }
7045
50bc7936 7046 if (fdh != NULL
f5385ebf 7047 && !fdh->elf.forced_local
0e1862bb 7048 && (!bfd_link_executable (info)
f5385ebf
AM		 7049 || fdh->elf.def_dynamic
7050 || fdh->elf.ref_dynamic
50bc7936
AM		 7051 || (fdh->elf.root.type == bfd_link_hash_undefweak
7052 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
7053 {
7054 if (fdh->elf.dynindx == -1)
c152c796 7055 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 7056 return FALSE;
f5385ebf
AM		 7057 fdh->elf.ref_regular |= fh->elf.ref_regular;
7058 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
7059 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
7060 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 7061 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 7062 {
40d16e0b 7063 move_plt_plist (fh, fdh);
f5385ebf 7064 fdh->elf.needs_plt = 1;
e86ce104 7065 }
50bc7936 7066 fdh->is_func_descriptor = 1;
34814b9f
AM		 7067 fdh->oh = fh;
7068 fh->oh = fdh;
e86ce104
AM		 7069 }
7070
50bc7936
AM		 7071 /* Now that the info is on the function descriptor, clear the
7072 function code sym info. Any function code syms for which we
7073 don't have a definition in a regular file, we force local.
7074 This prevents a shared library from exporting syms that have
7075 been imported from another library. Function code syms that
7076 are really in the library we must leave global to prevent the
7077 linker dragging in a definition from a static library. */
93f3fa99
AM		 7078 force_local = (!fh->elf.def_regular
7079 || fdh == NULL
7080 || !fdh->elf.def_regular
7081 || fdh->elf.forced_local);
50bc7936
AM		 7082 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
7083
b34976b6 7084 return TRUE;
e86ce104 7085}
40b8271b 7086
a4b6fadd
AM		 7087static const struct sfpr_def_parms save_res_funcs[] =
7088 {
7089 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
7090 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
7091 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
7092 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
7093 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
7094 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
7095 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
7096 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
7097 { "._savef", 14, 31, savefpr, savefpr1_tail },
7098 { "._restf", 14, 31, restfpr, restfpr1_tail },
7099 { "_savevr_", 20, 31, savevr, savevr_tail },
7100 { "_restvr_", 20, 31, restvr, restvr_tail }
7101 };
7102
e86ce104 7103/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 7104 this hook to a) provide some gcc support functions, and b) transfer
7105 dynamic linking information gathered so far on function code symbol
7106 entries, to their corresponding function descriptor symbol entries. */
deb0e272 7107
b34976b6 7108static bfd_boolean
4ce794b7
AM		 7109ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
7110 struct bfd_link_info *info)
e86ce104
AM		 7111{
7112 struct ppc_link_hash_table *htab;
7113
7114 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7115 if (htab == NULL)
7116 return FALSE;
7117
b32547cd
AM		 7118 /* Provide any missing _save* and _rest* functions. */
7119 if (htab->sfpr != NULL)
7120 {
7121 unsigned int i;
7122
7123 htab->sfpr->size = 0;
7124 for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++)
7125 if (!sfpr_define (info, &save_res_funcs[i], NULL))
7126 return FALSE;
7127 if (htab->sfpr->size == 0)
7128 htab->sfpr->flags |= SEC_EXCLUDE;
7129 }
7130
7131 if (bfd_link_relocatable (info))
7132 return TRUE;
7133
7134 if (htab->elf.hgot != NULL)
dba6fa9b
AM		 7135 {
7136 _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE);
7137 /* Make .TOC. defined so as to prevent it being made dynamic.
7138 The wrong value here is fixed later in ppc64_elf_set_toc. */
43417696
AM		 7139 if (!htab->elf.hgot->def_regular
7140 || htab->elf.hgot->root.type != bfd_link_hash_defined)
7141 {
7142 htab->elf.hgot->root.type = bfd_link_hash_defined;
7143 htab->elf.hgot->root.u.def.value = 0;
7144 htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr;
7145 htab->elf.hgot->def_regular = 1;
7146 htab->elf.hgot->root.linker_def = 1;
7147 }
dba6fa9b 7148 htab->elf.hgot->type = STT_OBJECT;
dba6fa9b
AM		 7149 htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1))
7150 | STV_HIDDEN);
7151 }
c66bb0ee 7152
4ce794b7 7153 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 7154
b34976b6 7155 return TRUE;
e86ce104
AM		 7156}
7157
8a2058b5
AM		 7158/* Return true if we have dynamic relocs against H that apply to
7159 read-only sections. */
a345bc8d
AM		 7160
7161static bfd_boolean
7162readonly_dynrelocs (struct elf_link_hash_entry *h)
7163{
7164 struct ppc_link_hash_entry *eh;
7165 struct elf_dyn_relocs *p;
7166
7167 eh = (struct ppc_link_hash_entry *) h;
7168 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7169 {
7170 asection *s = p->sec->output_section;
7171
7172 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7173 return TRUE;
7174 }
7175 return FALSE;
7176}
7177
d311bc8b
AM		 7178/* Return true if we have dynamic relocs against H or any of its weak
7179 aliases, that apply to read-only sections. */
7180
7181static bfd_boolean
7182alias_readonly_dynrelocs (struct elf_link_hash_entry *h)
7183{
7184 struct ppc_link_hash_entry *eh;
7185
7186 eh = (struct ppc_link_hash_entry *) h;
7187 do
7188 {
7189 if (readonly_dynrelocs (&eh->elf))
7190 return TRUE;
7191 eh = eh->weakref;
7192 } while (eh != NULL && &eh->elf != h);
7193
7194 return FALSE;
7195}
8a2058b5 7196
8a9e8e72
AM		 7197/* Return whether EH has pc-relative dynamic relocs. */
7198
7199static bfd_boolean
7200pc_dynrelocs (struct ppc_link_hash_entry *eh)
7201{
7202 struct elf_dyn_relocs *p;
7203
7204 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7205 if (p->pc_count != 0)
7206 return TRUE;
7207 return FALSE;
7208}
7209
8a2058b5
AM		 7210/* Return true if a global entry stub will be created for H. Valid
7211 for ELFv2 before plt entries have been allocated. */
7212
7213static bfd_boolean
7214global_entry_stub (struct elf_link_hash_entry *h)
7215{
7216 struct plt_entry *pent;
7217
7218 if (!h->pointer_equality_needed
7219 || h->def_regular)
7220 return FALSE;
7221
7222 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7223 if (pent->plt.refcount > 0
7224 && pent->addend == 0)
7225 return TRUE;
7226
7227 return FALSE;
7228}
7229
e86ce104
AM		 7230/* Adjust a symbol defined by a dynamic object and referenced by a
7231 regular object. The current definition is in some section of the
7232 dynamic object, but we're not including those sections. We have to
7233 change the definition to something the rest of the link can
7234 understand. */
7235
b34976b6 7236static bfd_boolean
4ce794b7
AM		 7237ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
7238 struct elf_link_hash_entry *h)
e86ce104
AM		 7239{
7240 struct ppc_link_hash_table *htab;
e86ce104 7241 asection *s;
e86ce104
AM		 7242
7243 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7244 if (htab == NULL)
7245 return FALSE;
e86ce104
AM		 7246
7247 /* Deal with function syms. */
7248 if (h->type == STT_FUNC
e054468f 7249 || h->type == STT_GNU_IFUNC
f5385ebf 7250 || h->needs_plt)
e86ce104
AM		 7251 {
7252 /* Clear procedure linkage table information for any symbol that
7253 won't need a .plt entry. */
411e1bfb
AM		 7254 struct plt_entry *ent;
7255 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7256 if (ent->plt.refcount > 0)
7257 break;
8387904d 7258 if (ent == NULL
e054468f
AM		 7259 || (h->type != STT_GNU_IFUNC
7260 && (SYMBOL_CALLS_LOCAL (info, h)
7261 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
a4b6fadd
AM		 7262 && h->root.type == bfd_link_hash_undefweak)))
7263 || ((struct ppc_link_hash_entry *) h)->save_res)
40b8271b 7264 {
411e1bfb 7265 h->plt.plist = NULL;
f5385ebf 7266 h->needs_plt = 0;
d1eca1e4 7267 h->pointer_equality_needed = 0;
40b8271b 7268 }
8a2058b5 7269 else if (abiversion (info->output_bfd) >= 2)
a345bc8d 7270 {
d1eca1e4
AM		 7271 /* Taking a function's address in a read/write section
7272 doesn't require us to define the function symbol in the
7273 executable on a global entry stub. A dynamic reloc can
8a2058b5
AM		 7274 be used instead. The reason we prefer a few more dynamic
7275 relocs is that calling via a global entry stub costs a
7276 few more instructions, and pointer_equality_needed causes
7277 extra work in ld.so when resolving these symbols. */
7278 if (global_entry_stub (h)
d311bc8b 7279 && !alias_readonly_dynrelocs (h))
d1eca1e4
AM		 7280 {
7281 h->pointer_equality_needed = 0;
8a2058b5
AM		 7282 /* After adjust_dynamic_symbol, non_got_ref set in
7283 the non-pic case means that dyn_relocs for this
7284 symbol should be discarded. */
d1eca1e4
AM		 7285 h->non_got_ref = 0;
7286 }
7287
a345bc8d
AM		 7288 /* If making a plt entry, then we don't need copy relocs. */
7289 return TRUE;
7290 }
5bd4f169 7291 }
bbd7ec4a 7292 else
411e1bfb 7293 h->plt.plist = NULL;
5bd4f169
AM		 7294
7295 /* If this is a weak symbol, and there is a real definition, the
7296 processor independent code will have arranged for us to see the
7297 real definition first, and we can just use the same value. */
f6e332e6 7298 if (h->u.weakdef != NULL)
5bd4f169 7299 {
f6e332e6
AM		 7300 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
7301 || h->u.weakdef->root.type == bfd_link_hash_defweak);
7302 h->root.u.def.section = h->u.weakdef->root.u.def.section;
7303 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 7304 if (ELIMINATE_COPY_RELOCS)
f6e332e6 7305 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 7306 return TRUE;
5bd4f169
AM		 7307 }
7308
5bd4f169
AM		 7309 /* If we are creating a shared library, we must presume that the
7310 only references to the symbol are via the global offset table.
7311 For such cases we need not do anything here; the relocations will
7312 be handled correctly by relocate_section. */
0e1862bb 7313 if (bfd_link_pic (info))
b34976b6 7314 return TRUE;
5bd4f169 7315
65f38f15
AM		 7316 /* If there are no references to this symbol that do not use the
7317 GOT, we don't need to generate a copy reloc. */
f5385ebf 7318 if (!h->non_got_ref)
b34976b6 7319 return TRUE;
65f38f15 7320
b186458a 7321 /* Don't generate a copy reloc for symbols defined in the executable. */
d93d1c80 7322 if (!h->def_dynamic || !h->ref_regular || h->def_regular
b186458a 7323
d93d1c80
AM		 7324 /* If -z nocopyreloc was given, don't generate them either. */
7325 || info->nocopyreloc
a127494f 7326
d93d1c80
AM		 7327 /* If we didn't find any dynamic relocs in read-only sections, then
7328 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
d311bc8b 7329 || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h))
65f38f15 7330
d93d1c80
AM		 7331 /* Protected variables do not work with .dynbss. The copy in
7332 .dynbss won't be used by the shared library with the protected
7333 definition for the variable. Text relocations are preferable
7334 to an incorrect program. */
7335 || h->protected_def)
a127494f
AM		 7336 {
7337 h->non_got_ref = 0;
7338 return TRUE;
7339 }
7340
5d35169e 7341 if (h->plt.plist != NULL)
97b639ba
AM		 7342 {
7343 /* We should never get here, but unfortunately there are versions
7344 of gcc out there that improperly (for this ABI) put initialized
7345 function pointers, vtable refs and suchlike in read-only
7346 sections. Allow them to proceed, but warn that this might
7347 break at runtime. */
25f53a85 7348 info->callbacks->einfo
bc30df16 7349 (_("%P: copy reloc against `%T' requires lazy plt linking; "
25f53a85 7350 "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"),
97b639ba
AM		 7351 h->root.root.string);
7352 }
5d35169e
AM		 7353
7354 /* This is a reference to a symbol defined by a dynamic object which
7355 is not a function. */
7356
5bd4f169
AM		 7357 /* We must allocate the symbol in our .dynbss section, which will
7358 become part of the .bss section of the executable. There will be
7359 an entry for this symbol in the .dynsym section. The dynamic
7360 object will contain position independent code, so all references
7361 from the dynamic object to this symbol will go through the global
7362 offset table. The dynamic linker will use the .dynsym entry to
7363 determine the address it must put in the global offset table, so
7364 both the dynamic object and the regular object will refer to the
7365 same memory location for the variable. */
5bd4f169 7366
04c9666a
AM		 7367 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
7368 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 7369 runtime process image. We need to remember the offset into the
7370 .rela.bss section we are going to use. */
1d7e9d18 7371 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5bd4f169 7372 {
eea6121a 7373 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 7374 h->needs_copy = 1;
5bd4f169
AM		 7375 }
7376
4ce794b7 7377 s = htab->dynbss;
5bd4f169 7378
6cabe1ea 7379 return _bfd_elf_adjust_dynamic_copy (info, h, s);
5bd4f169
AM		 7380}
7381
e86ce104
AM		 7382/* If given a function descriptor symbol, hide both the function code
7383 sym and the descriptor. */
7384static void
4ce794b7
AM		 7385ppc64_elf_hide_symbol (struct bfd_link_info *info,
7386 struct elf_link_hash_entry *h,
7387 bfd_boolean force_local)
e86ce104 7388{
34814b9f 7389 struct ppc_link_hash_entry *eh;
e86ce104
AM		 7390 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
7391
34814b9f
AM		 7392 eh = (struct ppc_link_hash_entry *) h;
7393 if (eh->is_func_descriptor)
e86ce104 7394 {
34814b9f 7395 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 7396
721956f4 7397 if (fh == NULL)
d1329ca3
AM		 7398 {
7399 const char *p, *q;
7400 struct ppc_link_hash_table *htab;
7401 char save;
7402
7403 /* We aren't supposed to use alloca in BFD because on
7404 systems which do not have alloca the version in libiberty
7405 calls xmalloc, which might cause the program to crash
7406 when it runs out of memory. This function doesn't have a
7407 return status, so there's no way to gracefully return an
7408 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 7409 accessed; It's either a string in an ELF string table,
7410 or allocated in an objalloc structure. */
d1329ca3 7411
34814b9f 7412 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 7413 save = *p;
7414 *(char *) p = '.';
7415 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7416 if (htab == NULL)
7417 return;
7418
34814b9f
AM		 7419 fh = (struct ppc_link_hash_entry *)
7420 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 7421 *(char *) p = save;
7422
7423 /* Unfortunately, if it so happens that the string we were
7424 looking for was allocated immediately before this string,
7425 then we overwrote the string terminator. That's the only
7426 reason the lookup should fail. */
7427 if (fh == NULL)
7428 {
34814b9f
AM		 7429 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
7430 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 7431 --q, --p;
34814b9f
AM		 7432 if (q < eh->elf.root.root.string && *p == '.')
7433 fh = (struct ppc_link_hash_entry *)
7434 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 7435 }
7436 if (fh != NULL)
7437 {
34814b9f
AM		 7438 eh->oh = fh;
7439 fh->oh = eh;
d1329ca3
AM		 7440 }
7441 }
e86ce104 7442 if (fh != NULL)
34814b9f 7443 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 7444 }
7445}
7446
411e1bfb 7447static bfd_boolean
8843416a
AM		 7448get_sym_h (struct elf_link_hash_entry **hp,
7449 Elf_Internal_Sym **symp,
7450 asection **symsecp,
f961d9dd 7451 unsigned char **tls_maskp,
8843416a
AM		 7452 Elf_Internal_Sym **locsymsp,
7453 unsigned long r_symndx,
7454 bfd *ibfd)
411e1bfb 7455{
0ffa91dd 7456 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
411e1bfb
AM		 7457
7458 if (r_symndx >= symtab_hdr->sh_info)
7459 {
7460 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
7461 struct elf_link_hash_entry *h;
7462
7463 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 7464 h = elf_follow_link (h);
411e1bfb
AM		 7465
7466 if (hp != NULL)
7467 *hp = h;
7468
7469 if (symp != NULL)
7470 *symp = NULL;
7471
7472 if (symsecp != NULL)
7473 {
7474 asection *symsec = NULL;
7475 if (h->root.type == bfd_link_hash_defined
7476 || h->root.type == bfd_link_hash_defweak)
7477 symsec = h->root.u.def.section;
7478 *symsecp = symsec;
7479 }
7480
e7b938ca 7481 if (tls_maskp != NULL)
411e1bfb
AM		 7482 {
7483 struct ppc_link_hash_entry *eh;
7484
7485 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 7486 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 7487 }
7488 }
7489 else
7490 {
7491 Elf_Internal_Sym *sym;
7492 Elf_Internal_Sym *locsyms = *locsymsp;
7493
7494 if (locsyms == NULL)
7495 {
7496 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
7497 if (locsyms == NULL)
7498 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
7499 symtab_hdr->sh_info,
7500 0, NULL, NULL, NULL);
7501 if (locsyms == NULL)
7502 return FALSE;
7503 *locsymsp = locsyms;
7504 }
7505 sym = locsyms + r_symndx;
7506
7507 if (hp != NULL)
7508 *hp = NULL;
7509
7510 if (symp != NULL)
7511 *symp = sym;
7512
7513 if (symsecp != NULL)
cb33740c 7514 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
411e1bfb 7515
e7b938ca 7516 if (tls_maskp != NULL)
411e1bfb
AM		 7517 {
7518 struct got_entry **lgot_ents;
f961d9dd 7519 unsigned char *tls_mask;
411e1bfb 7520
e7b938ca 7521 tls_mask = NULL;
411e1bfb
AM		 7522 lgot_ents = elf_local_got_ents (ibfd);
7523 if (lgot_ents != NULL)
7524 {
e054468f
AM		 7525 struct plt_entry **local_plt = (struct plt_entry **)
7526 (lgot_ents + symtab_hdr->sh_info);
f961d9dd 7527 unsigned char *lgot_masks = (unsigned char *)
e054468f 7528 (local_plt + symtab_hdr->sh_info);
e7b938ca 7529 tls_mask = &lgot_masks[r_symndx];
411e1bfb 7530 }
e7b938ca 7531 *tls_maskp = tls_mask;
411e1bfb
AM		 7532 }
7533 }
7534 return TRUE;
7535}
7536
e7b938ca 7537/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 7538 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 7539 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 7540
7541static int
f961d9dd 7542get_tls_mask (unsigned char **tls_maskp,
3a71aa26
AM		 7543 unsigned long *toc_symndx,
7544 bfd_vma *toc_addend,
0d4792f7 7545 Elf_Internal_Sym **locsymsp,
3a71aa26
AM		 7546 const Elf_Internal_Rela *rel,
7547 bfd *ibfd)
411e1bfb
AM		 7548{
7549 unsigned long r_symndx;
0d4792f7 7550 int next_r;
411e1bfb
AM		 7551 struct elf_link_hash_entry *h;
7552 Elf_Internal_Sym *sym;
7553 asection *sec;
7554 bfd_vma off;
7555
7556 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 7557 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 7558 return 0;
411e1bfb 7559
e7b938ca 7560 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb 7561 || sec == NULL
6bee8834 7562 || ppc64_elf_section_data (sec) == NULL
7c8fe5c4 7563 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
951fd09b 7564 return 1;
411e1bfb
AM		 7565
7566 /* Look inside a TOC section too. */
7567 if (h != NULL)
7568 {
7569 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
7570 off = h->root.u.def.value;
7571 }
7572 else
7573 off = sym->st_value;
7574 off += rel->r_addend;
7575 BFD_ASSERT (off % 8 == 0);
3a71aa26
AM		 7576 r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8];
7577 next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1];
0d4792f7
AM		 7578 if (toc_symndx != NULL)
7579 *toc_symndx = r_symndx;
3a71aa26
AM		 7580 if (toc_addend != NULL)
7581 *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8];
7582 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
7583 return 0;
854b41e7 7584 if ((h == NULL || is_static_defined (h))
0d4792f7
AM		 7585 && (next_r == -1 || next_r == -2))
7586 return 1 - next_r;
951fd09b 7587 return 1;
411e1bfb
AM		 7588}
7589
3b421ab3
AM		 7590/* Find (or create) an entry in the tocsave hash table. */
7591
7592static struct tocsave_entry *
7593tocsave_find (struct ppc_link_hash_table *htab,
7594 enum insert_option insert,
7595 Elf_Internal_Sym **local_syms,
7596 const Elf_Internal_Rela *irela,
7597 bfd *ibfd)
7598{
7599 unsigned long r_indx;
7600 struct elf_link_hash_entry *h;
7601 Elf_Internal_Sym *sym;
7602 struct tocsave_entry ent, *p;
7603 hashval_t hash;
7604 struct tocsave_entry **slot;
7605
7606 r_indx = ELF64_R_SYM (irela->r_info);
7607 if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd))
7608 return NULL;
7609 if (ent.sec == NULL || ent.sec->output_section == NULL)
7610 {
4eca0228 7611 _bfd_error_handler
3b421ab3
AM		 7612 (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"));
7613 return NULL;
7614 }
7615
7616 if (h != NULL)
7617 ent.offset = h->root.u.def.value;
7618 else
7619 ent.offset = sym->st_value;
7620 ent.offset += irela->r_addend;
7621
7622 hash = tocsave_htab_hash (&ent);
7623 slot = ((struct tocsave_entry **)
7624 htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert));
7625 if (slot == NULL)
7626 return NULL;
7627
7628 if (*slot == NULL)
7629 {
7630 p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p));
7631 if (p == NULL)
7632 return NULL;
7633 *p = ent;
7634 *slot = p;
7635 }
7636 return *slot;
7637}
7638
754021d0 7639/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 7640 code for the old ABI, these will already have been done. */
754021d0
AM		 7641
7642static bfd_boolean
7643adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
7644{
7645 struct ppc_link_hash_entry *eh;
7646 asection *sym_sec;
74f0fb50 7647 struct _opd_sec_data *opd;
754021d0
AM		 7648
7649 if (h->root.type == bfd_link_hash_indirect)
7650 return TRUE;
7651
754021d0
AM		 7652 if (h->root.type != bfd_link_hash_defined
7653 && h->root.type != bfd_link_hash_defweak)
7654 return TRUE;
7655
7656 eh = (struct ppc_link_hash_entry *) h;
7657 if (eh->adjust_done)
7658 return TRUE;
7659
7660 sym_sec = eh->elf.root.u.def.section;
74f0fb50
AM		 7661 opd = get_opd_info (sym_sec);
7662 if (opd != NULL && opd->adjust != NULL)
754021d0 7663 {
51aecdc5 7664 long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)];
4025353c
AM		 7665 if (adjust == -1)
7666 {
7667 /* This entry has been deleted. */
b3fac117 7668 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
81688140
AM		 7669 if (dsec == NULL)
7670 {
7671 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
dbaa2011 7672 if (discarded_section (dsec))
81688140 7673 {
b3fac117 7674 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
81688140
AM		 7675 break;
7676 }
7677 }
4025353c 7678 eh->elf.root.u.def.value = 0;
81688140 7679 eh->elf.root.u.def.section = dsec;
4025353c
AM		 7680 }
7681 else
7682 eh->elf.root.u.def.value += adjust;
754021d0
AM		 7683 eh->adjust_done = 1;
7684 }
7685 return TRUE;
7686}
7687
8c1d1bb8 7688/* Handles decrementing dynamic reloc counts for the reloc specified by
19e08130 7689 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM
8c1d1bb8
AM		 7690 have already been determined. */
7691
7692static bfd_boolean
7693dec_dynrel_count (bfd_vma r_info,
7694 asection *sec,
7695 struct bfd_link_info *info,
7696 Elf_Internal_Sym **local_syms,
7697 struct elf_link_hash_entry *h,
19e08130 7698 Elf_Internal_Sym *sym)
8c1d1bb8
AM		 7699{
7700 enum elf_ppc64_reloc_type r_type;
19e08130 7701 asection *sym_sec = NULL;
8c1d1bb8
AM		 7702
7703 /* Can this reloc be dynamic? This switch, and later tests here
7704 should be kept in sync with the code in check_relocs. */
7705 r_type = ELF64_R_TYPE (r_info);
7706 switch (r_type)
7707 {
7708 default:
7709 return TRUE;
7710
7711 case R_PPC64_TPREL16:
7712 case R_PPC64_TPREL16_LO:
7713 case R_PPC64_TPREL16_HI:
7714 case R_PPC64_TPREL16_HA:
7715 case R_PPC64_TPREL16_DS:
7716 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 7717 case R_PPC64_TPREL16_HIGH:
7718 case R_PPC64_TPREL16_HIGHA:
8c1d1bb8
AM		 7719 case R_PPC64_TPREL16_HIGHER:
7720 case R_PPC64_TPREL16_HIGHERA:
7721 case R_PPC64_TPREL16_HIGHEST:
7722 case R_PPC64_TPREL16_HIGHESTA:
0e1862bb 7723 if (!bfd_link_pic (info))
8c1d1bb8
AM		 7724 return TRUE;
7725
7726 case R_PPC64_TPREL64:
7727 case R_PPC64_DTPMOD64:
7728 case R_PPC64_DTPREL64:
7729 case R_PPC64_ADDR64:
7730 case R_PPC64_REL30:
7731 case R_PPC64_REL32:
7732 case R_PPC64_REL64:
7733 case R_PPC64_ADDR14:
7734 case R_PPC64_ADDR14_BRNTAKEN:
7735 case R_PPC64_ADDR14_BRTAKEN:
7736 case R_PPC64_ADDR16:
7737 case R_PPC64_ADDR16_DS:
7738 case R_PPC64_ADDR16_HA:
7739 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 7740 case R_PPC64_ADDR16_HIGH:
7741 case R_PPC64_ADDR16_HIGHA:
8c1d1bb8
AM		 7742 case R_PPC64_ADDR16_HIGHER:
7743 case R_PPC64_ADDR16_HIGHERA:
7744 case R_PPC64_ADDR16_HIGHEST:
7745 case R_PPC64_ADDR16_HIGHESTA:
7746 case R_PPC64_ADDR16_LO:
7747 case R_PPC64_ADDR16_LO_DS:
7748 case R_PPC64_ADDR24:
7749 case R_PPC64_ADDR32:
7750 case R_PPC64_UADDR16:
7751 case R_PPC64_UADDR32:
7752 case R_PPC64_UADDR64:
7753 case R_PPC64_TOC:
7754 break;
7755 }
7756
7757 if (local_syms != NULL)
7758 {
7759 unsigned long r_symndx;
8c1d1bb8
AM		 7760 bfd *ibfd = sec->owner;
7761
7762 r_symndx = ELF64_R_SYM (r_info);
7763 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
7764 return FALSE;
7765 }
7766
0e1862bb 7767 if ((bfd_link_pic (info)
1d483afe 7768 && (must_be_dyn_reloc (info, r_type)
8c1d1bb8 7769 || (h != NULL
198f1157 7770 && (!SYMBOLIC_BIND (info, h)
8c1d1bb8
AM		 7771 || h->root.type == bfd_link_hash_defweak
7772 || !h->def_regular))))
7773 || (ELIMINATE_COPY_RELOCS
0e1862bb 7774 && !bfd_link_pic (info)
8c1d1bb8
AM		 7775 && h != NULL
7776 && (h->root.type == bfd_link_hash_defweak
7777 || !h->def_regular)))
7778 ;
7779 else
7780 return TRUE;
7781
7782 if (h != NULL)
6edfbbad 7783 {
19e08130
AM		 7784 struct elf_dyn_relocs *p;
7785 struct elf_dyn_relocs **pp;
7786 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
7787
7788 /* elf_gc_sweep may have already removed all dyn relocs associated
7789 with local syms for a given section. Also, symbol flags are
7790 changed by elf_gc_sweep_symbol, confusing the test above. Don't
7791 report a dynreloc miscount. */
7792 if (*pp == NULL && info->gc_sections)
7793 return TRUE;
7794
7795 while ((p = *pp) != NULL)
60124e18 7796 {
19e08130
AM		 7797 if (p->sec == sec)
7798 {
7799 if (!must_be_dyn_reloc (info, r_type))
7800 p->pc_count -= 1;
7801 p->count -= 1;
7802 if (p->count == 0)
7803 *pp = p->next;
7804 return TRUE;
7805 }
7806 pp = &p->next;
60124e18 7807 }
6edfbbad 7808 }
19e08130
AM		 7809 else
7810 {
7811 struct ppc_dyn_relocs *p;
7812 struct ppc_dyn_relocs **pp;
7813 void *vpp;
7814 bfd_boolean is_ifunc;
8c1d1bb8 7815
19e08130
AM		 7816 if (local_syms == NULL)
7817 sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
7818 if (sym_sec == NULL)
7819 sym_sec = sec;
c57da1a7 7820
19e08130
AM		 7821 vpp = &elf_section_data (sym_sec)->local_dynrel;
7822 pp = (struct ppc_dyn_relocs **) vpp;
7823
7824 if (*pp == NULL && info->gc_sections)
7825 return TRUE;
7826
7827 is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC;
7828 while ((p = *pp) != NULL)
8c1d1bb8 7829 {
19e08130
AM		 7830 if (p->sec == sec && p->ifunc == is_ifunc)
7831 {
7832 p->count -= 1;
7833 if (p->count == 0)
7834 *pp = p->next;
7835 return TRUE;
7836 }
7837 pp = &p->next;
8c1d1bb8 7838 }
8c1d1bb8
AM		 7839 }
7840
695344c0 7841 /* xgettext:c-format */
8de848d8 7842 info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"),
25f53a85 7843 sec->owner, sec);
8c1d1bb8
AM		 7844 bfd_set_error (bfd_error_bad_value);
7845 return FALSE;
7846}
7847
754021d0
AM		 7848/* Remove unused Official Procedure Descriptor entries. Currently we
7849 only remove those associated with functions in discarded link-once
7850 sections, or weakly defined functions that have been overridden. It
7851 would be possible to remove many more entries for statically linked
7852 applications. */
7853
b34976b6 7854bfd_boolean
e7d1c40c 7855ppc64_elf_edit_opd (struct bfd_link_info *info)
1e2f5b6e
AM		 7856{
7857 bfd *ibfd;
754021d0 7858 bfd_boolean some_edited = FALSE;
3f764659 7859 asection *need_pad = NULL;
e7d1c40c
AM		 7860 struct ppc_link_hash_table *htab;
7861
7862 htab = ppc_hash_table (info);
7863 if (htab == NULL)
7864 return FALSE;
1e2f5b6e 7865
c72f2fb2 7866 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
1e2f5b6e
AM		 7867 {
7868 asection *sec;
7869 Elf_Internal_Rela *relstart, *rel, *relend;
7870 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 7871 Elf_Internal_Sym *local_syms;
74f0fb50 7872 struct _opd_sec_data *opd;
51aecdc5 7873 bfd_boolean need_edit, add_aux_fields, broken;
3f764659 7874 bfd_size_type cnt_16b = 0;
1e2f5b6e 7875
854b41e7
AM		 7876 if (!is_ppc64_elf (ibfd))
7877 continue;
7878
1e2f5b6e 7879 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 7880 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM		 7881 continue;
7882
dbaa2011 7883 if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS)
4b85d634
AM		 7884 continue;
7885
1e2f5b6e
AM		 7886 if (sec->output_section == bfd_abs_section_ptr)
7887 continue;
7888
7889 /* Look through the section relocs. */
7890 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
7891 continue;
7892
6cdc0ccc 7893 local_syms = NULL;
0ffa91dd 7894 symtab_hdr = &elf_symtab_hdr (ibfd);
1e2f5b6e
AM		 7895
7896 /* Read the relocations. */
4ce794b7 7897 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 7898 info->keep_memory);
1e2f5b6e 7899 if (relstart == NULL)
b34976b6 7900 return FALSE;
1e2f5b6e
AM		 7901
7902 /* First run through the relocs to check they are sane, and to
7903 determine whether we need to edit this opd section. */
b34976b6 7904 need_edit = FALSE;
51aecdc5 7905 broken = FALSE;
3f764659 7906 need_pad = sec;
1e2f5b6e 7907 relend = relstart + sec->reloc_count;
50bc7936 7908 for (rel = relstart; rel < relend; )
1e2f5b6e 7909 {
04c9666a 7910 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 7911 unsigned long r_symndx;
7912 asection *sym_sec;
7913 struct elf_link_hash_entry *h;
7914 Elf_Internal_Sym *sym;
51aecdc5 7915 bfd_vma offset;
1e2f5b6e 7916
51aecdc5 7917 /* .opd contains an array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 7918 only interested in the reloc pointing to a function entry
7919 point. */
51aecdc5
AM		 7920 offset = rel->r_offset;
7921 if (rel + 1 == relend
7922 || rel[1].r_offset != offset + 8)
1e2f5b6e
AM		 7923 {
7924 /* If someone messes with .opd alignment then after a
7925 "ld -r" we might have padding in the middle of .opd.
7926 Also, there's nothing to prevent someone putting
7927 something silly in .opd with the assembler. No .opd
b34976b6 7928 optimization for them! */
3f764659 7929 broken_opd:
4eca0228 7930 _bfd_error_handler
d003868e 7931 (_("%B: .opd is not a regular array of opd entries"), ibfd);
51aecdc5 7932 broken = TRUE;
1e2f5b6e
AM		 7933 break;
7934 }
7935
50bc7936
AM		 7936 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
7937 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
7938 {
4eca0228 7939 _bfd_error_handler
695344c0 7940 /* xgettext:c-format */
d003868e
AM		 7941 (_("%B: unexpected reloc type %u in .opd section"),
7942 ibfd, r_type);
51aecdc5 7943 broken = TRUE;
50bc7936
AM		 7944 break;
7945 }
7946
1e2f5b6e 7947 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 7948 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7949 r_symndx, ibfd))
50bc7936 7950 goto error_ret;
1e2f5b6e
AM		 7951
7952 if (sym_sec == NULL || sym_sec->owner == NULL)
7953 {
411e1bfb
AM		 7954 const char *sym_name;
7955 if (h != NULL)
7956 sym_name = h->root.root.string;
7957 else
26c61ae5
L		 7958 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7959 sym_sec);
411e1bfb 7960
4eca0228 7961 _bfd_error_handler
695344c0 7962 /* xgettext:c-format */
d003868e
AM		 7963 (_("%B: undefined sym `%s' in .opd section"),
7964 ibfd, sym_name);
51aecdc5 7965 broken = TRUE;
1e2f5b6e
AM		 7966 break;
7967 }
7968
51020317
AM		 7969 /* opd entries are always for functions defined in the
7970 current input bfd. If the symbol isn't defined in the
7971 input bfd, then we won't be using the function in this
7972 bfd; It must be defined in a linkonce section in another
7973 bfd, or is weak. It's also possible that we are
7974 discarding the function due to a linker script /DISCARD/,
7975 which we test for via the output_section. */
7976 if (sym_sec->owner != ibfd
7977 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 7978 need_edit = TRUE;
1e2f5b6e 7979
50bc7936 7980 rel += 2;
51aecdc5
AM		 7981 if (rel + 1 == relend
7982 || (rel + 2 < relend
7983 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC))
7984 ++rel;
7985
7986 if (rel == relend)
3f764659
JJ		 7987 {
7988 if (sec->size == offset + 24)
7989 {
7990 need_pad = NULL;
7991 break;
7992 }
51aecdc5 7993 if (sec->size == offset + 16)
3f764659
JJ		 7994 {
7995 cnt_16b++;
7996 break;
7997 }
7998 goto broken_opd;
7999 }
3f764659
JJ		 8000 else if (rel + 1 < relend
8001 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
8002 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
8003 {
51aecdc5
AM		 8004 if (rel[0].r_offset == offset + 16)
8005 cnt_16b++;
8006 else if (rel[0].r_offset != offset + 24)
8007 goto broken_opd;
3f764659
JJ		 8008 }
8009 else
8010 goto broken_opd;
1e2f5b6e
AM		 8011 }
8012
e7d1c40c 8013 add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0;
3f764659 8014
51aecdc5 8015 if (!broken && (need_edit || add_aux_fields))
1e2f5b6e
AM		 8016 {
8017 Elf_Internal_Rela *write_rel;
d4730f92 8018 Elf_Internal_Shdr *rel_hdr;
1e2f5b6e 8019 bfd_byte *rptr, *wptr;
983bddc8 8020 bfd_byte *new_contents;
74f0fb50
AM		 8021 bfd_size_type amt;
8022
983bddc8 8023 new_contents = NULL;
51aecdc5 8024 amt = OPD_NDX (sec->size) * sizeof (long);
74f0fb50 8025 opd = &ppc64_elf_section_data (sec)->u.opd;
33c0ec9d 8026 opd->adjust = bfd_zalloc (sec->owner, amt);
74f0fb50
AM		 8027 if (opd->adjust == NULL)
8028 return FALSE;
8029 ppc64_elf_section_data (sec)->sec_type = sec_opd;
1e2f5b6e
AM		 8030
8031 /* This seems a waste of time as input .opd sections are all
8032 zeros as generated by gcc, but I suppose there's no reason
8033 this will always be so. We might start putting something in
8034 the third word of .opd entries. */
8035 if ((sec->flags & SEC_IN_MEMORY) == 0)
8036 {
eea6121a
AM		 8037 bfd_byte *loc;
8038 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 8039 {
eea6121a
AM		 8040 if (loc != NULL)
8041 free (loc);
50bc7936 8042 error_ret:
6cdc0ccc
AM		 8043 if (local_syms != NULL
8044 && symtab_hdr->contents != (unsigned char *) local_syms)
8045 free (local_syms);
6cdc0ccc
AM		 8046 if (elf_section_data (sec)->relocs != relstart)
8047 free (relstart);
b34976b6 8048 return FALSE;
6cdc0ccc 8049 }
1e2f5b6e
AM		 8050 sec->contents = loc;
8051 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
8052 }
8053
8054 elf_section_data (sec)->relocs = relstart;
8055
3f764659 8056 new_contents = sec->contents;
3f764659
JJ		 8057 if (add_aux_fields)
8058 {
8059 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
8060 if (new_contents == NULL)
8061 return FALSE;
51aecdc5 8062 need_pad = NULL;
3f764659 8063 }
b4f4e59f
AM		 8064 wptr = new_contents;
8065 rptr = sec->contents;
1e2f5b6e 8066 write_rel = relstart;
51aecdc5 8067 for (rel = relstart; rel < relend; )
1e2f5b6e 8068 {
50bc7936
AM		 8069 unsigned long r_symndx;
8070 asection *sym_sec;
8071 struct elf_link_hash_entry *h;
51aecdc5 8072 struct ppc_link_hash_entry *fdh = NULL;
50bc7936 8073 Elf_Internal_Sym *sym;
51aecdc5
AM		 8074 long opd_ent_size;
8075 Elf_Internal_Rela *next_rel;
8076 bfd_boolean skip;
50bc7936
AM		 8077
8078 r_symndx = ELF64_R_SYM (rel->r_info);
8079 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 8080 r_symndx, ibfd))
50bc7936
AM		 8081 goto error_ret;
8082
51aecdc5
AM		 8083 next_rel = rel + 2;
8084 if (next_rel + 1 == relend
8085 || (next_rel + 2 < relend
8086 && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC))
8087 ++next_rel;
8088
8089 /* See if the .opd entry is full 24 byte or
8090 16 byte (with fd_aux entry overlapped with next
8091 fd_func). */
8092 opd_ent_size = 24;
8093 if (next_rel == relend)
1e2f5b6e 8094 {
51aecdc5 8095 if (sec->size == rel->r_offset + 16)
3f764659 8096 opd_ent_size = 16;
51aecdc5
AM		 8097 }
8098 else if (next_rel->r_offset == rel->r_offset + 16)
8099 opd_ent_size = 16;
3f764659 8100
51aecdc5
AM		 8101 if (h != NULL
8102 && h->root.root.string[0] == '.')
8103 {
8104 fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab);
8105 if (fdh != NULL
8106 && fdh->elf.root.type != bfd_link_hash_defined
8107 && fdh->elf.root.type != bfd_link_hash_defweak)
8108 fdh = NULL;
8109 }
1e2f5b6e 8110
51aecdc5
AM		 8111 skip = (sym_sec->owner != ibfd
8112 || sym_sec->output_section == bfd_abs_section_ptr);
8113 if (skip)
8114 {
8115 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7 8116 {
51aecdc5
AM		 8117 /* Arrange for the function descriptor sym
8118 to be dropped. */
8119 fdh->elf.root.u.def.value = 0;
8120 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 8121 }
51aecdc5 8122 opd->adjust[OPD_NDX (rel->r_offset)] = -1;
1e2f5b6e 8123
0e1862bb 8124 if (NO_OPD_RELOCS || bfd_link_relocatable (info))
51aecdc5
AM		 8125 rel = next_rel;
8126 else
8127 while (1)
8128 {
8129 if (!dec_dynrel_count (rel->r_info, sec, info,
8130 NULL, h, sym))
8131 goto error_ret;
754021d0 8132
51aecdc5
AM		 8133 if (++rel == next_rel)
8134 break;
1e2f5b6e 8135
51aecdc5
AM		 8136 r_symndx = ELF64_R_SYM (rel->r_info);
8137 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8138 r_symndx, ibfd))
8139 goto error_ret;
8140 }
50bc7936
AM		 8141 }
8142 else
1e2f5b6e 8143 {
51aecdc5
AM		 8144 /* We'll be keeping this opd entry. */
8145 long adjust;
8146
8147 if (fdh != NULL)
8148 {
8149 /* Redefine the function descriptor symbol to
8150 this location in the opd section. It is
8151 necessary to update the value here rather
8152 than using an array of adjustments as we do
8153 for local symbols, because various places
8154 in the generic ELF code use the value
8155 stored in u.def.value. */
8156 fdh->elf.root.u.def.value = wptr - new_contents;
8157 fdh->adjust_done = 1;
8158 }
8159
8160 /* Local syms are a bit tricky. We could
8161 tweak them as they can be cached, but
8162 we'd need to look through the local syms
8163 for the function descriptor sym which we
8164 don't have at the moment. So keep an
8165 array of adjustments. */
8166 adjust = (wptr - new_contents) - (rptr - sec->contents);
8167 opd->adjust[OPD_NDX (rel->r_offset)] = adjust;
8168
8169 if (wptr != rptr)
8170 memcpy (wptr, rptr, opd_ent_size);
8171 wptr += opd_ent_size;
8172 if (add_aux_fields && opd_ent_size == 16)
8173 {
8174 memset (wptr, '\0', 8);
8175 wptr += 8;
8176 }
8177
50bc7936 8178 /* We need to adjust any reloc offsets to point to the
51aecdc5
AM		 8179 new opd entries. */
8180 for ( ; rel != next_rel; ++rel)
8181 {
8182 rel->r_offset += adjust;
8183 if (write_rel != rel)
8184 memcpy (write_rel, rel, sizeof (*rel));
8185 ++write_rel;
8186 }
1e2f5b6e 8187 }
51aecdc5
AM		 8188
8189 rptr += opd_ent_size;
1e2f5b6e
AM		 8190 }
8191
3f764659 8192 sec->size = wptr - new_contents;
1e2f5b6e 8193 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 8194 if (add_aux_fields)
8195 {
8196 free (sec->contents);
8197 sec->contents = new_contents;
8198 }
8199
05bf9422 8200 /* Fudge the header size too, as this is used later in
cdcf6e38 8201 elf_bfd_final_link if we are emitting relocs. */
d4730f92
BS		 8202 rel_hdr = _bfd_elf_single_rel_hdr (sec);
8203 rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize;
754021d0 8204 some_edited = TRUE;
1e2f5b6e 8205 }
6cdc0ccc 8206 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 8207 free (relstart);
6cdc0ccc 8208
411e1bfb
AM		 8209 if (local_syms != NULL
8210 && symtab_hdr->contents != (unsigned char *) local_syms)
8211 {
8212 if (!info->keep_memory)
8213 free (local_syms);
8214 else
8215 symtab_hdr->contents = (unsigned char *) local_syms;
8216 }
8217 }
8218
754021d0
AM		 8219 if (some_edited)
8220 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
8221
3f764659
JJ		 8222 /* If we are doing a final link and the last .opd entry is just 16 byte
8223 long, add a 8 byte padding after it. */
0e1862bb 8224 if (need_pad != NULL && !bfd_link_relocatable (info))
3f764659
JJ		 8225 {
8226 bfd_byte *p;
8227
8228 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
8229 {
8230 BFD_ASSERT (need_pad->size > 0);
8231
8232 p = bfd_malloc (need_pad->size + 8);
8233 if (p == NULL)
8234 return FALSE;
699733f6 8235
3f764659
JJ		 8236 if (! bfd_get_section_contents (need_pad->owner, need_pad,
8237 p, 0, need_pad->size))
8238 return FALSE;
8239
8240 need_pad->contents = p;
8241 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
8242 }
8243 else
8244 {
8245 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
8246 if (p == NULL)
8247 return FALSE;
8248
8249 need_pad->contents = p;
8250 }
8251
8252 memset (need_pad->contents + need_pad->size, 0, 8);
8253 need_pad->size += 8;
8254 }
8255
411e1bfb
AM		 8256 return TRUE;
8257}
8258
e1918d23 8259/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 8260
e1918d23 8261asection *
e7d1c40c 8262ppc64_elf_tls_setup (struct bfd_link_info *info)
411e1bfb 8263{
411e1bfb
AM		 8264 struct ppc_link_hash_table *htab;
8265
411e1bfb 8266 htab = ppc_hash_table (info);
4dfe6ac6
NC		 8267 if (htab == NULL)
8268 return NULL;
8269
ee67d69a
AM		 8270 if (abiversion (info->output_bfd) == 1)
8271 htab->opd_abi = 1;
8272
e7d1c40c 8273 if (htab->params->no_multi_toc)
33c0ec9d
AM		 8274 htab->do_multi_toc = 0;
8275 else if (!htab->do_multi_toc)
e7d1c40c 8276 htab->params->no_multi_toc = 1;
33c0ec9d 8277
3a71aa26
AM		 8278 htab->tls_get_addr = ((struct ppc_link_hash_entry *)
8279 elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
8280 FALSE, FALSE, TRUE));
a7f2871e
AM		 8281 /* Move dynamic linking info to the function descriptor sym. */
8282 if (htab->tls_get_addr != NULL)
8283 func_desc_adjust (&htab->tls_get_addr->elf, info);
3a71aa26
AM		 8284 htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *)
8285 elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
8286 FALSE, FALSE, TRUE));
7c9cf415 8287 if (htab->params->tls_get_addr_opt)
a7f2871e
AM		 8288 {
8289 struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd;
8290
8291 opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt",
8292 FALSE, FALSE, TRUE);
8293 if (opt != NULL)
8294 func_desc_adjust (opt, info);
8295 opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
8296 FALSE, FALSE, TRUE);
8297 if (opt_fd != NULL
8298 && (opt_fd->root.type == bfd_link_hash_defined
8299 || opt_fd->root.type == bfd_link_hash_defweak))
8300 {
8301 /* If glibc supports an optimized __tls_get_addr call stub,
8302 signalled by the presence of __tls_get_addr_opt, and we'll
8303 be calling __tls_get_addr via a plt call stub, then
8304 make __tls_get_addr point to __tls_get_addr_opt. */
8305 tga_fd = &htab->tls_get_addr_fd->elf;
8306 if (htab->elf.dynamic_sections_created
8307 && tga_fd != NULL
8308 && (tga_fd->type == STT_FUNC
8309 || tga_fd->needs_plt)
8310 && !(SYMBOL_CALLS_LOCAL (info, tga_fd)
8311 || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT
8312 && tga_fd->root.type == bfd_link_hash_undefweak)))
8313 {
8314 struct plt_entry *ent;
8315
8316 for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next)
8317 if (ent->plt.refcount > 0)
8318 break;
8319 if (ent != NULL)
8320 {
8321 tga_fd->root.type = bfd_link_hash_indirect;
8322 tga_fd->root.u.i.link = &opt_fd->root;
8323 ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd);
3bd43ebc 8324 opt_fd->forced_local = 0;
a7f2871e
AM		 8325 if (opt_fd->dynindx != -1)
8326 {
8327 /* Use __tls_get_addr_opt in dynamic relocations. */
8328 opt_fd->dynindx = -1;
8329 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
8330 opt_fd->dynstr_index);
8331 if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd))
854b41e7 8332 return NULL;
a7f2871e
AM		 8333 }
8334 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd;
8335 tga = &htab->tls_get_addr->elf;
8336 if (opt != NULL && tga != NULL)
8337 {
8338 tga->root.type = bfd_link_hash_indirect;
8339 tga->root.u.i.link = &opt->root;
8340 ppc64_elf_copy_indirect_symbol (info, opt, tga);
3bd43ebc 8341 opt->forced_local = 0;
a7f2871e
AM		 8342 _bfd_elf_link_hash_hide_symbol (info, opt,
8343 tga->forced_local);
8344 htab->tls_get_addr = (struct ppc_link_hash_entry *) opt;
8345 }
8346 htab->tls_get_addr_fd->oh = htab->tls_get_addr;
8347 htab->tls_get_addr_fd->is_func_descriptor = 1;
8348 if (htab->tls_get_addr != NULL)
8349 {
8350 htab->tls_get_addr->oh = htab->tls_get_addr_fd;
8351 htab->tls_get_addr->is_func = 1;
8352 }
8353 }
8354 }
8355 }
7c9cf415
AM		 8356 else if (htab->params->tls_get_addr_opt < 0)
8357 htab->params->tls_get_addr_opt = 0;
a7f2871e 8358 }
33c0ec9d 8359 return _bfd_elf_tls_setup (info->output_bfd, info);
3a71aa26 8360}
8387904d 8361
3a71aa26
AM		 8362/* Return TRUE iff REL is a branch reloc with a global symbol matching
8363 HASH1 or HASH2. */
8387904d 8364
3a71aa26
AM		 8365static bfd_boolean
8366branch_reloc_hash_match (const bfd *ibfd,
8367 const Elf_Internal_Rela *rel,
8368 const struct ppc_link_hash_entry *hash1,
8369 const struct ppc_link_hash_entry *hash2)
8370{
8371 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
8372 enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info);
8373 unsigned int r_symndx = ELF64_R_SYM (rel->r_info);
8374
e054468f 8375 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
8387904d 8376 {
3a71aa26
AM		 8377 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
8378 struct elf_link_hash_entry *h;
8387904d 8379
3a71aa26 8380 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 8381 h = elf_follow_link (h);
3a71aa26
AM		 8382 if (h == &hash1->elf || h == &hash2->elf)
8383 return TRUE;
a48ebf4d 8384 }
3a71aa26 8385 return FALSE;
951fd09b 8386}
411e1bfb 8387
951fd09b
AM		 8388/* Run through all the TLS relocs looking for optimization
8389 opportunities. The linker has been hacked (see ppc64elf.em) to do
8390 a preliminary section layout so that we know the TLS segment
8391 offsets. We can't optimize earlier because some optimizations need
8392 to know the tp offset, and we need to optimize before allocating
8393 dynamic relocations. */
8394
8395bfd_boolean
33c0ec9d 8396ppc64_elf_tls_optimize (struct bfd_link_info *info)
951fd09b
AM		 8397{
8398 bfd *ibfd;
8399 asection *sec;
8400 struct ppc_link_hash_table *htab;
663a1470 8401 unsigned char *toc_ref;
102890f0 8402 int pass;
951fd09b 8403
3cbc1e5e 8404 if (!bfd_link_executable (info))
411e1bfb
AM		 8405 return TRUE;
8406
951fd09b 8407 htab = ppc_hash_table (info);
4dfe6ac6
NC		 8408 if (htab == NULL)
8409 return FALSE;
8410
663a1470
AM		 8411 /* Make two passes over the relocs. On the first pass, mark toc
8412 entries involved with tls relocs, and check that tls relocs
8413 involved in setting up a tls_get_addr call are indeed followed by
8414 such a call. If they are not, we can't do any tls optimization.
8415 On the second pass twiddle tls_mask flags to notify
8416 relocate_section that optimization can be done, and adjust got
8417 and plt refcounts. */
8418 toc_ref = NULL;
8419 for (pass = 0; pass < 2; ++pass)
c72f2fb2 8420 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
663a1470
AM		 8421 {
8422 Elf_Internal_Sym *locsyms = NULL;
8423 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
8424
102890f0
AM		 8425 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8426 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
8427 {
8428 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 8429 bfd_boolean found_tls_get_addr_arg = 0;
411e1bfb 8430
102890f0
AM		 8431 /* Read the relocations. */
8432 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8433 info->keep_memory);
8434 if (relstart == NULL)
2915c55b
JK		 8435 {
8436 free (toc_ref);
8437 return FALSE;
8438 }
411e1bfb 8439
102890f0
AM		 8440 relend = relstart + sec->reloc_count;
8441 for (rel = relstart; rel < relend; rel++)
8442 {
8443 enum elf_ppc64_reloc_type r_type;
8444 unsigned long r_symndx;
8445 struct elf_link_hash_entry *h;
8446 Elf_Internal_Sym *sym;
8447 asection *sym_sec;
f961d9dd
AM		 8448 unsigned char *tls_mask;
8449 unsigned char tls_set, tls_clear, tls_type = 0;
102890f0
AM		 8450 bfd_vma value;
8451 bfd_boolean ok_tprel, is_local;
8452 long toc_ref_index = 0;
8453 int expecting_tls_get_addr = 0;
663a1470 8454 bfd_boolean ret = FALSE;
411e1bfb 8455
102890f0
AM		 8456 r_symndx = ELF64_R_SYM (rel->r_info);
8457 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
8458 r_symndx, ibfd))
8459 {
8460 err_free_rel:
8461 if (elf_section_data (sec)->relocs != relstart)
8462 free (relstart);
8463 if (toc_ref != NULL)
8464 free (toc_ref);
8465 if (locsyms != NULL
0ffa91dd 8466 && (elf_symtab_hdr (ibfd).contents
102890f0
AM		 8467 != (unsigned char *) locsyms))
8468 free (locsyms);
663a1470 8469 return ret;
102890f0 8470 }
411e1bfb 8471
102890f0
AM		 8472 if (h != NULL)
8473 {
766bc656
AM		 8474 if (h->root.type == bfd_link_hash_defined
8475 || h->root.type == bfd_link_hash_defweak)
8476 value = h->root.u.def.value;
8477 else if (h->root.type == bfd_link_hash_undefweak)
8478 value = 0;
8479 else
663a1470
AM		 8480 {
8481 found_tls_get_addr_arg = 0;
8482 continue;
8483 }
102890f0
AM		 8484 }
8485 else
8486 /* Symbols referenced by TLS relocs must be of type
8487 STT_TLS. So no need for .opd local sym adjust. */
8488 value = sym->st_value;
8489
8490 ok_tprel = FALSE;
8491 is_local = FALSE;
8492 if (h == NULL
8493 || !h->def_dynamic)
8494 {
8495 is_local = TRUE;
766bc656
AM		 8496 if (h != NULL
8497 && h->root.type == bfd_link_hash_undefweak)
8498 ok_tprel = TRUE;
c27b8c2a
AM		 8499 else if (sym_sec != NULL
8500 && sym_sec->output_section != NULL)
766bc656
AM		 8501 {
8502 value += sym_sec->output_offset;
8503 value += sym_sec->output_section->vma;
8504 value -= htab->elf.tls_sec->vma;
8505 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
8506 < (bfd_vma) 1 << 32);
8507 }
102890f0 8508 }
951fd09b 8509
102890f0 8510 r_type = ELF64_R_TYPE (rel->r_info);
663a1470
AM		 8511 /* If this section has old-style __tls_get_addr calls
8512 without marker relocs, then check that each
8513 __tls_get_addr call reloc is preceded by a reloc
8514 that conceivably belongs to the __tls_get_addr arg
8515 setup insn. If we don't find matching arg setup
8516 relocs, don't do any tls optimization. */
8517 if (pass == 0
8518 && sec->has_tls_get_addr_call
8519 && h != NULL
8520 && (h == &htab->tls_get_addr->elf
8521 || h == &htab->tls_get_addr_fd->elf)
8522 && !found_tls_get_addr_arg
8523 && is_branch_reloc (r_type))
8524 {
25f53a85 8525 info->callbacks->minfo (_("%H __tls_get_addr lost arg, "
663a1470
AM		 8526 "TLS optimization disabled\n"),
8527 ibfd, sec, rel->r_offset);
8528 ret = TRUE;
8529 goto err_free_rel;
8530 }
8531
8532 found_tls_get_addr_arg = 0;
102890f0
AM		 8533 switch (r_type)
8534 {
8535 case R_PPC64_GOT_TLSLD16:
8536 case R_PPC64_GOT_TLSLD16_LO:
8537 expecting_tls_get_addr = 1;
663a1470 8538 found_tls_get_addr_arg = 1;
1a0670f3 8539 /* Fall through. */
102890f0
AM		 8540
8541 case R_PPC64_GOT_TLSLD16_HI:
8542 case R_PPC64_GOT_TLSLD16_HA:
8543 /* These relocs should never be against a symbol
8544 defined in a shared lib. Leave them alone if
8545 that turns out to be the case. */
8546 if (!is_local)
8547 continue;
411e1bfb 8548
102890f0 8549 /* LD -> LE */
411e1bfb 8550 tls_set = 0;
102890f0
AM		 8551 tls_clear = TLS_LD;
8552 tls_type = TLS_TLS | TLS_LD;
8553 break;
411e1bfb 8554
102890f0
AM		 8555 case R_PPC64_GOT_TLSGD16:
8556 case R_PPC64_GOT_TLSGD16_LO:
8557 expecting_tls_get_addr = 1;
663a1470 8558 found_tls_get_addr_arg = 1;
1a0670f3 8559 /* Fall through. */
102890f0
AM		 8560
8561 case R_PPC64_GOT_TLSGD16_HI:
8562 case R_PPC64_GOT_TLSGD16_HA:
8563 if (ok_tprel)
8564 /* GD -> LE */
411e1bfb 8565 tls_set = 0;
102890f0
AM		 8566 else
8567 /* GD -> IE */
8568 tls_set = TLS_TLS | TLS_TPRELGD;
8569 tls_clear = TLS_GD;
8570 tls_type = TLS_TLS | TLS_GD;
8571 break;
8572
8573 case R_PPC64_GOT_TPREL16_DS:
8574 case R_PPC64_GOT_TPREL16_LO_DS:
8575 case R_PPC64_GOT_TPREL16_HI:
8576 case R_PPC64_GOT_TPREL16_HA:
8577 if (ok_tprel)
8578 {
8579 /* IE -> LE */
8580 tls_set = 0;
8581 tls_clear = TLS_TPREL;
8582 tls_type = TLS_TLS | TLS_TPREL;
8583 break;
8584 }
411e1bfb
AM		 8585 continue;
8586
727fc41e
AM		 8587 case R_PPC64_TLSGD:
8588 case R_PPC64_TLSLD:
663a1470 8589 found_tls_get_addr_arg = 1;
1a0670f3 8590 /* Fall through. */
663a1470
AM		 8591
8592 case R_PPC64_TLS:
8593 case R_PPC64_TOC16:
8594 case R_PPC64_TOC16_LO:
102890f0
AM		 8595 if (sym_sec == NULL || sym_sec != toc)
8596 continue;
8597
8598 /* Mark this toc entry as referenced by a TLS
8599 code sequence. We can do that now in the
8600 case of R_PPC64_TLS, and after checking for
8601 tls_get_addr for the TOC16 relocs. */
8602 if (toc_ref == NULL)
663a1470
AM		 8603 toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8);
8604 if (toc_ref == NULL)
8605 goto err_free_rel;
8606
102890f0
AM		 8607 if (h != NULL)
8608 value = h->root.u.def.value;
8609 else
8610 value = sym->st_value;
8611 value += rel->r_addend;
73242275
AM		 8612 if (value % 8 != 0)
8613 continue;
8614 BFD_ASSERT (value < toc->size
8615 && toc->output_offset % 8 == 0);
663a1470 8616 toc_ref_index = (value + toc->output_offset) / 8;
727fc41e
AM		 8617 if (r_type == R_PPC64_TLS
8618 || r_type == R_PPC64_TLSGD
8619 || r_type == R_PPC64_TLSLD)
102890f0
AM		 8620 {
8621 toc_ref[toc_ref_index] = 1;
8622 continue;
8623 }
8624
8625 if (pass != 0 && toc_ref[toc_ref_index] == 0)
8626 continue;
8627
8628 tls_set = 0;
8629 tls_clear = 0;
8630 expecting_tls_get_addr = 2;
8631 break;
8632
8633 case R_PPC64_TPREL64:
8634 if (pass == 0
8635 || sec != toc
8636 || toc_ref == NULL
663a1470 8637 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
102890f0
AM		 8638 continue;
8639 if (ok_tprel)
8640 {
8641 /* IE -> LE */
8642 tls_set = TLS_EXPLICIT;
8643 tls_clear = TLS_TPREL;
8644 break;
8645 }
8646 continue;
8647
8648 case R_PPC64_DTPMOD64:
8649 if (pass == 0
8650 || sec != toc
8651 || toc_ref == NULL
663a1470 8652 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
102890f0
AM		 8653 continue;
8654 if (rel + 1 < relend
8655 && (rel[1].r_info
8656 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
8657 && rel[1].r_offset == rel->r_offset + 8)
8658 {
8659 if (ok_tprel)
8660 /* GD -> LE */
8661 tls_set = TLS_EXPLICIT | TLS_GD;
8662 else
8663 /* GD -> IE */
8664 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
8665 tls_clear = TLS_GD;
8666 }
8667 else
8668 {
8669 if (!is_local)
8670 continue;
8671
8672 /* LD -> LE */
8673 tls_set = TLS_EXPLICIT;
8674 tls_clear = TLS_LD;
8675 }
8676 break;
8677
8678 default:
8679 continue;
8680 }
8681
8682 if (pass == 0)
8683 {
727fc41e
AM		 8684 if (!expecting_tls_get_addr
8685 || !sec->has_tls_get_addr_call)
102890f0
AM		 8686 continue;
8687
3a71aa26
AM		 8688 if (rel + 1 < relend
8689 && branch_reloc_hash_match (ibfd, rel + 1,
8690 htab->tls_get_addr,
8691 htab->tls_get_addr_fd))
102890f0 8692 {
3a71aa26 8693 if (expecting_tls_get_addr == 2)
102890f0 8694 {
3a71aa26 8695 /* Check for toc tls entries. */
f961d9dd 8696 unsigned char *toc_tls;
3a71aa26
AM		 8697 int retval;
8698
8699 retval = get_tls_mask (&toc_tls, NULL, NULL,
8700 &locsyms,
8701 rel, ibfd);
8702 if (retval == 0)
8703 goto err_free_rel;
663a1470
AM		 8704 if (toc_tls != NULL)
8705 {
8706 if ((*toc_tls & (TLS_GD | TLS_LD)) != 0)
8707 found_tls_get_addr_arg = 1;
8708 if (retval > 1)
8709 toc_ref[toc_ref_index] = 1;
8710 }
102890f0 8711 }
3a71aa26 8712 continue;
102890f0
AM		 8713 }
8714
8715 if (expecting_tls_get_addr != 1)
8716 continue;
8717
8718 /* Uh oh, we didn't find the expected call. We
8719 could just mark this symbol to exclude it
8720 from tls optimization but it's safer to skip
663a1470 8721 the entire optimization. */
695344c0 8722 /* xgettext:c-format */
25f53a85 8723 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM		 8724 "TLS optimization disabled\n"),
8725 ibfd, sec, rel->r_offset);
8726 ret = TRUE;
8727 goto err_free_rel;
102890f0
AM		 8728 }
8729
85f7a9cb 8730 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
102890f0
AM		 8731 {
8732 struct plt_entry *ent;
8733 for (ent = htab->tls_get_addr->elf.plt.plist;
8734 ent != NULL;
8735 ent = ent->next)
8736 if (ent->addend == 0)
411e1bfb 8737 {
102890f0 8738 if (ent->plt.refcount > 0)
30038c59 8739 {
102890f0
AM		 8740 ent->plt.refcount -= 1;
8741 expecting_tls_get_addr = 0;
30038c59 8742 }
102890f0 8743 break;
411e1bfb 8744 }
102890f0 8745 }
411e1bfb 8746
85f7a9cb 8747 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
102890f0
AM		 8748 {
8749 struct plt_entry *ent;
8750 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
8751 ent != NULL;
8752 ent = ent->next)
8753 if (ent->addend == 0)
411e1bfb 8754 {
102890f0
AM		 8755 if (ent->plt.refcount > 0)
8756 ent->plt.refcount -= 1;
8757 break;
411e1bfb 8758 }
102890f0 8759 }
411e1bfb 8760
102890f0 8761 if (tls_clear == 0)
30038c59
AM		 8762 continue;
8763
102890f0
AM		 8764 if ((tls_set & TLS_EXPLICIT) == 0)
8765 {
8766 struct got_entry *ent;
411e1bfb 8767
102890f0
AM		 8768 /* Adjust got entry for this reloc. */
8769 if (h != NULL)
8770 ent = h->got.glist;
8771 else
8772 ent = elf_local_got_ents (ibfd)[r_symndx];
411e1bfb 8773
102890f0
AM		 8774 for (; ent != NULL; ent = ent->next)
8775 if (ent->addend == rel->r_addend
8776 && ent->owner == ibfd
8777 && ent->tls_type == tls_type)
8778 break;
8779 if (ent == NULL)
8780 abort ();
411e1bfb 8781
102890f0
AM		 8782 if (tls_set == 0)
8783 {
8784 /* We managed to get rid of a got entry. */
8785 if (ent->got.refcount > 0)
8786 ent->got.refcount -= 1;
8787 }
8788 }
8789 else
8790 {
8791 /* If we got rid of a DTPMOD/DTPREL reloc pair then
8792 we'll lose one or two dyn relocs. */
8793 if (!dec_dynrel_count (rel->r_info, sec, info,
19e08130 8794 NULL, h, sym))
102890f0 8795 return FALSE;
411e1bfb 8796
102890f0
AM		 8797 if (tls_set == (TLS_EXPLICIT | TLS_GD))
8798 {
8799 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
19e08130 8800 NULL, h, sym))
102890f0
AM		 8801 return FALSE;
8802 }
8803 }
411e1bfb 8804
102890f0
AM		 8805 *tls_mask |= tls_set;
8806 *tls_mask &= ~tls_clear;
8807 }
8c1d1bb8 8808
102890f0
AM		 8809 if (elf_section_data (sec)->relocs != relstart)
8810 free (relstart);
8811 }
411e1bfb 8812
663a1470
AM		 8813 if (locsyms != NULL
8814 && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms))
8815 {
8816 if (!info->keep_memory)
8817 free (locsyms);
8818 else
8819 elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms;
8820 }
8821 }
411e1bfb 8822
663a1470
AM		 8823 if (toc_ref != NULL)
8824 free (toc_ref);
b34976b6 8825 return TRUE;
1e2f5b6e 8826}
b34976b6 8827
c5614fa4
AM		 8828/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
8829 the values of any global symbols in a toc section that has been
8830 edited. Globals in toc sections should be a rarity, so this function
8831 sets a flag if any are found in toc sections other than the one just
8832 edited, so that futher hash table traversals can be avoided. */
8833
8834struct adjust_toc_info
8835{
8836 asection *toc;
8837 unsigned long *skip;
8838 bfd_boolean global_toc_syms;
8839};
8840
ba761f19
AM		 8841enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 };
8842
c5614fa4
AM		 8843static bfd_boolean
8844adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
8845{
8846 struct ppc_link_hash_entry *eh;
8847 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
854b41e7 8848 unsigned long i;
c5614fa4 8849
c5614fa4
AM		 8850 if (h->root.type != bfd_link_hash_defined
8851 && h->root.type != bfd_link_hash_defweak)
8852 return TRUE;
8853
8854 eh = (struct ppc_link_hash_entry *) h;
8855 if (eh->adjust_done)
8856 return TRUE;
8857
8858 if (eh->elf.root.u.def.section == toc_inf->toc)
8859 {
854b41e7
AM		 8860 if (eh->elf.root.u.def.value > toc_inf->toc->rawsize)
8861 i = toc_inf->toc->rawsize >> 3;
c5614fa4 8862 else
854b41e7
AM		 8863 i = eh->elf.root.u.def.value >> 3;
8864
ba761f19 8865 if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0)
c5614fa4 8866 {
4eca0228 8867 _bfd_error_handler
854b41e7
AM		 8868 (_("%s defined on removed toc entry"), eh->elf.root.root.string);
8869 do
8870 ++i;
ba761f19 8871 while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0);
854b41e7 8872 eh->elf.root.u.def.value = (bfd_vma) i << 3;
c5614fa4 8873 }
854b41e7
AM		 8874
8875 eh->elf.root.u.def.value -= toc_inf->skip[i];
c5614fa4
AM		 8876 eh->adjust_done = 1;
8877 }
8878 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
8879 toc_inf->global_toc_syms = TRUE;
8880
8881 return TRUE;
8882}
8883
560c8763
AM		 8884/* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */
8885
8886static bfd_boolean
8887ok_lo_toc_insn (unsigned int insn)
8888{
8889 return ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8890 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8891 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8892 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8893 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8894 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8895 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8896 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8897 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8898 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8899 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8900 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8901 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8902 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8903 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8904 && (insn & 3) != 1)
8905 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8906 && ((insn & 3) == 0 || (insn & 3) == 3))
8907 || (insn & (0x3f << 26)) == 12u << 26 /* addic */);
8908}
8909
c5614fa4
AM		 8910/* Examine all relocs referencing .toc sections in order to remove
8911 unused .toc entries. */
8912
8913bfd_boolean
33c0ec9d 8914ppc64_elf_edit_toc (struct bfd_link_info *info)
c5614fa4
AM		 8915{
8916 bfd *ibfd;
8917 struct adjust_toc_info toc_inf;
67f0cbdb 8918 struct ppc_link_hash_table *htab = ppc_hash_table (info);
c5614fa4 8919
67f0cbdb 8920 htab->do_toc_opt = 1;
c5614fa4 8921 toc_inf.global_toc_syms = TRUE;
c72f2fb2 8922 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
c5614fa4
AM		 8923 {
8924 asection *toc, *sec;
8925 Elf_Internal_Shdr *symtab_hdr;
8926 Elf_Internal_Sym *local_syms;
425b145b 8927 Elf_Internal_Rela *relstart, *rel, *toc_relocs;
c5614fa4
AM		 8928 unsigned long *skip, *drop;
8929 unsigned char *used;
8930 unsigned char *keep, last, some_unused;
8931
854b41e7
AM		 8932 if (!is_ppc64_elf (ibfd))
8933 continue;
8934
c5614fa4
AM		 8935 toc = bfd_get_section_by_name (ibfd, ".toc");
8936 if (toc == NULL
92b7a70f 8937 || toc->size == 0
dbaa2011
AM		 8938 || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS
8939 || discarded_section (toc))
c5614fa4
AM		 8940 continue;
8941
425b145b 8942 toc_relocs = NULL;
c5614fa4 8943 local_syms = NULL;
0ffa91dd 8944 symtab_hdr = &elf_symtab_hdr (ibfd);
c5614fa4
AM		 8945
8946 /* Look at sections dropped from the final link. */
8947 skip = NULL;
8948 relstart = NULL;
8949 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8950 {
8951 if (sec->reloc_count == 0
dbaa2011 8952 || !discarded_section (sec)
c5614fa4
AM		 8953 || get_opd_info (sec)
8954 || (sec->flags & SEC_ALLOC) == 0
8955 || (sec->flags & SEC_DEBUGGING) != 0)
8956 continue;
8957
8958 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
8959 if (relstart == NULL)
8960 goto error_ret;
8961
8962 /* Run through the relocs to see which toc entries might be
8963 unused. */
8964 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8965 {
8966 enum elf_ppc64_reloc_type r_type;
8967 unsigned long r_symndx;
8968 asection *sym_sec;
8969 struct elf_link_hash_entry *h;
8970 Elf_Internal_Sym *sym;
8971 bfd_vma val;
8972
8973 r_type = ELF64_R_TYPE (rel->r_info);
8974 switch (r_type)
8975 {
8976 default:
8977 continue;
8978
8979 case R_PPC64_TOC16:
8980 case R_PPC64_TOC16_LO:
8981 case R_PPC64_TOC16_HI:
8982 case R_PPC64_TOC16_HA:
8983 case R_PPC64_TOC16_DS:
8984 case R_PPC64_TOC16_LO_DS:
8985 break;
8986 }
8987
8988 r_symndx = ELF64_R_SYM (rel->r_info);
8989 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8990 r_symndx, ibfd))
8991 goto error_ret;
8992
8993 if (sym_sec != toc)
8994 continue;
8995
8996 if (h != NULL)
8997 val = h->root.u.def.value;
8998 else
8999 val = sym->st_value;
9000 val += rel->r_addend;
9001
9002 if (val >= toc->size)
9003 continue;
9004
9005 /* Anything in the toc ought to be aligned to 8 bytes.
9006 If not, don't mark as unused. */
9007 if (val & 7)
9008 continue;
9009
9010 if (skip == NULL)
9011 {
854b41e7 9012 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
c5614fa4
AM		 9013 if (skip == NULL)
9014 goto error_ret;
9015 }
9016
ba761f19 9017 skip[val >> 3] = ref_from_discarded;
c5614fa4
AM		 9018 }
9019
9020 if (elf_section_data (sec)->relocs != relstart)
9021 free (relstart);
9022 }
9023
ba761f19
AM		 9024 /* For largetoc loads of address constants, we can convert
9025 . addis rx,2,addr@got@ha
9026 . ld ry,addr@got@l(rx)
9027 to
9028 . addis rx,2,addr@toc@ha
9029 . addi ry,rx,addr@toc@l
9030 when addr is within 2G of the toc pointer. This then means
9031 that the word storing "addr" in the toc is no longer needed. */
68ffbac6 9032
ba761f19
AM		 9033 if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc
9034 && toc->output_section->rawsize < (bfd_vma) 1 << 31
9035 && toc->reloc_count != 0)
9036 {
9037 /* Read toc relocs. */
425b145b
AM		 9038 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
9039 info->keep_memory);
9040 if (toc_relocs == NULL)
ba761f19
AM		 9041 goto error_ret;
9042
425b145b 9043 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
ba761f19
AM		 9044 {
9045 enum elf_ppc64_reloc_type r_type;
9046 unsigned long r_symndx;
9047 asection *sym_sec;
9048 struct elf_link_hash_entry *h;
9049 Elf_Internal_Sym *sym;
9050 bfd_vma val, addr;
9051
9052 r_type = ELF64_R_TYPE (rel->r_info);
9053 if (r_type != R_PPC64_ADDR64)
9054 continue;
9055
9056 r_symndx = ELF64_R_SYM (rel->r_info);
9057 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9058 r_symndx, ibfd))
9059 goto error_ret;
9060
425b145b 9061 if (sym_sec == NULL
c27b8c2a 9062 || sym_sec->output_section == NULL
dbaa2011 9063 || discarded_section (sym_sec))
425b145b
AM		 9064 continue;
9065
afe397ea 9066 if (!SYMBOL_REFERENCES_LOCAL (info, h))
ba761f19
AM		 9067 continue;
9068
9069 if (h != NULL)
bddc25c9
AM		 9070 {
9071 if (h->type == STT_GNU_IFUNC)
9072 continue;
9073 val = h->root.u.def.value;
9074 }
ba761f19 9075 else
bddc25c9
AM		 9076 {
9077 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
9078 continue;
9079 val = sym->st_value;
9080 }
ba761f19
AM		 9081 val += rel->r_addend;
9082 val += sym_sec->output_section->vma + sym_sec->output_offset;
9083
9084 /* We don't yet know the exact toc pointer value, but we
9085 know it will be somewhere in the toc section. Don't
9086 optimize if the difference from any possible toc
9087 pointer is outside [ff..f80008000, 7fff7fff]. */
9088 addr = toc->output_section->vma + TOC_BASE_OFF;
9089 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
9090 continue;
9091
9092 addr = toc->output_section->vma + toc->output_section->rawsize;
9093 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
9094 continue;
9095
9096 if (skip == NULL)
9097 {
9098 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
9099 if (skip == NULL)
9100 goto error_ret;
9101 }
9102
9103 skip[rel->r_offset >> 3]
425b145b 9104 |= can_optimize | ((rel - toc_relocs) << 2);
ba761f19 9105 }
ba761f19
AM		 9106 }
9107
c5614fa4
AM		 9108 if (skip == NULL)
9109 continue;
9110
9111 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
9112 if (used == NULL)
9113 {
9114 error_ret:
9115 if (local_syms != NULL
9116 && symtab_hdr->contents != (unsigned char *) local_syms)
9117 free (local_syms);
9118 if (sec != NULL
9119 && relstart != NULL
9120 && elf_section_data (sec)->relocs != relstart)
9121 free (relstart);
425b145b
AM		 9122 if (toc_relocs != NULL
9123 && elf_section_data (toc)->relocs != toc_relocs)
9124 free (toc_relocs);
c5614fa4
AM		 9125 if (skip != NULL)
9126 free (skip);
9127 return FALSE;
9128 }
9129
30038c59
AM		 9130 /* Now check all kept sections that might reference the toc.
9131 Check the toc itself last. */
9132 for (sec = (ibfd->sections == toc && toc->next ? toc->next
9133 : ibfd->sections);
c5614fa4 9134 sec != NULL;
c5614fa4 9135 sec = (sec == toc ? NULL
c5614fa4 9136 : sec->next == NULL ? toc
30038c59 9137 : sec->next == toc && toc->next ? toc->next
c5614fa4
AM		 9138 : sec->next))
9139 {
9140 int repeat;
9141
9142 if (sec->reloc_count == 0
dbaa2011 9143 || discarded_section (sec)
c5614fa4
AM		 9144 || get_opd_info (sec)
9145 || (sec->flags & SEC_ALLOC) == 0
9146 || (sec->flags & SEC_DEBUGGING) != 0)
9147 continue;
9148
854b41e7
AM		 9149 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
9150 info->keep_memory);
c5614fa4 9151 if (relstart == NULL)
2915c55b
JK		 9152 {
9153 free (used);
9154 goto error_ret;
9155 }
c5614fa4
AM		 9156
9157 /* Mark toc entries referenced as used. */
c5614fa4 9158 do
d4f1ee75
AM		 9159 {
9160 repeat = 0;
9161 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
9162 {
9163 enum elf_ppc64_reloc_type r_type;
9164 unsigned long r_symndx;
9165 asection *sym_sec;
9166 struct elf_link_hash_entry *h;
9167 Elf_Internal_Sym *sym;
9168 bfd_vma val;
9169 enum {no_check, check_lo, check_ha} insn_check;
98528052 9170
d4f1ee75
AM		 9171 r_type = ELF64_R_TYPE (rel->r_info);
9172 switch (r_type)
9173 {
9174 default:
9175 insn_check = no_check;
9176 break;
98528052 9177
d4f1ee75
AM		 9178 case R_PPC64_GOT_TLSLD16_HA:
9179 case R_PPC64_GOT_TLSGD16_HA:
9180 case R_PPC64_GOT_TPREL16_HA:
9181 case R_PPC64_GOT_DTPREL16_HA:
9182 case R_PPC64_GOT16_HA:
9183 case R_PPC64_TOC16_HA:
9184 insn_check = check_ha;
9185 break;
98528052 9186
d4f1ee75
AM		 9187 case R_PPC64_GOT_TLSLD16_LO:
9188 case R_PPC64_GOT_TLSGD16_LO:
9189 case R_PPC64_GOT_TPREL16_LO_DS:
9190 case R_PPC64_GOT_DTPREL16_LO_DS:
9191 case R_PPC64_GOT16_LO:
9192 case R_PPC64_GOT16_LO_DS:
9193 case R_PPC64_TOC16_LO:
9194 case R_PPC64_TOC16_LO_DS:
9195 insn_check = check_lo;
9196 break;
9197 }
560c8763 9198
d4f1ee75
AM		 9199 if (insn_check != no_check)
9200 {
9201 bfd_vma off = rel->r_offset & ~3;
9202 unsigned char buf[4];
9203 unsigned int insn;
c5614fa4 9204
d4f1ee75
AM		 9205 if (!bfd_get_section_contents (ibfd, sec, buf, off, 4))
9206 {
9207 free (used);
9208 goto error_ret;
9209 }
9210 insn = bfd_get_32 (ibfd, buf);
9211 if (insn_check == check_lo
9212 ? !ok_lo_toc_insn (insn)
9213 : ((insn & ((0x3f << 26) | 0x1f << 16))
9214 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */))
9215 {
9216 char str[12];
9217
9218 ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1;
9219 sprintf (str, "%#08x", insn);
9220 info->callbacks->einfo
695344c0 9221 /* xgettext:c-format */
d4f1ee75
AM		 9222 (_("%P: %H: toc optimization is not supported for"
9223 " %s instruction.\n"),
9224 ibfd, sec, rel->r_offset & ~3, str);
9225 }
9226 }
c5614fa4 9227
d4f1ee75
AM		 9228 switch (r_type)
9229 {
9230 case R_PPC64_TOC16:
9231 case R_PPC64_TOC16_LO:
9232 case R_PPC64_TOC16_HI:
9233 case R_PPC64_TOC16_HA:
9234 case R_PPC64_TOC16_DS:
9235 case R_PPC64_TOC16_LO_DS:
9236 /* In case we're taking addresses of toc entries. */
9237 case R_PPC64_ADDR64:
9238 break;
c5614fa4 9239
d4f1ee75
AM		 9240 default:
9241 continue;
9242 }
c5614fa4 9243
d4f1ee75
AM		 9244 r_symndx = ELF64_R_SYM (rel->r_info);
9245 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9246 r_symndx, ibfd))
9247 {
9248 free (used);
9249 goto error_ret;
9250 }
c5614fa4 9251
d4f1ee75
AM		 9252 if (sym_sec != toc)
9253 continue;
c5614fa4 9254
d4f1ee75
AM		 9255 if (h != NULL)
9256 val = h->root.u.def.value;
9257 else
9258 val = sym->st_value;
9259 val += rel->r_addend;
ba761f19 9260
d4f1ee75
AM		 9261 if (val >= toc->size)
9262 continue;
ba761f19 9263
d4f1ee75
AM		 9264 if ((skip[val >> 3] & can_optimize) != 0)
9265 {
9266 bfd_vma off;
9267 unsigned char opc;
9268
9269 switch (r_type)
9270 {
9271 case R_PPC64_TOC16_HA:
ba761f19 9272 break;
ba761f19 9273
d4f1ee75
AM		 9274 case R_PPC64_TOC16_LO_DS:
9275 off = rel->r_offset;
9276 off += (bfd_big_endian (ibfd) ? -2 : 3);
9277 if (!bfd_get_section_contents (ibfd, sec, &opc,
9278 off, 1))
9279 {
9280 free (used);
9281 goto error_ret;
9282 }
9283 if ((opc & (0x3f << 2)) == (58u << 2))
9284 break;
1a0670f3 9285 /* Fall through. */
ba761f19 9286
d4f1ee75
AM		 9287 default:
9288 /* Wrong sort of reloc, or not a ld. We may
9289 as well clear ref_from_discarded too. */
9290 skip[val >> 3] = 0;
9291 }
9292 }
9293
9294 if (sec != toc)
9295 used[val >> 3] = 1;
9296 /* For the toc section, we only mark as used if this
9297 entry itself isn't unused. */
9298 else if ((used[rel->r_offset >> 3]
9299 || !(skip[rel->r_offset >> 3] & ref_from_discarded))
9300 && !used[val >> 3])
9301 {
9302 /* Do all the relocs again, to catch reference
9303 chains. */
9304 repeat = 1;
9305 used[val >> 3] = 1;
9306 }
9307 }
9308 }
c5614fa4 9309 while (repeat);
854b41e7
AM		 9310
9311 if (elf_section_data (sec)->relocs != relstart)
9312 free (relstart);
c5614fa4
AM		 9313 }
9314
9315 /* Merge the used and skip arrays. Assume that TOC
9316 doublewords not appearing as either used or unused belong
9317 to to an entry more than one doubleword in size. */
9318 for (drop = skip, keep = used, last = 0, some_unused = 0;
9319 drop < skip + (toc->size + 7) / 8;
9320 ++drop, ++keep)
9321 {
9322 if (*keep)
9323 {
ba761f19
AM		 9324 *drop &= ~ref_from_discarded;
9325 if ((*drop & can_optimize) != 0)
9326 some_unused = 1;
c5614fa4
AM		 9327 last = 0;
9328 }
b140b010 9329 else if ((*drop & ref_from_discarded) != 0)
c5614fa4
AM		 9330 {
9331 some_unused = 1;
ba761f19 9332 last = ref_from_discarded;
c5614fa4
AM		 9333 }
9334 else
9335 *drop = last;
9336 }
9337
9338 free (used);
9339
9340 if (some_unused)
9341 {
9342 bfd_byte *contents, *src;
9343 unsigned long off;
d62b3684 9344 Elf_Internal_Sym *sym;
ba761f19 9345 bfd_boolean local_toc_syms = FALSE;
c5614fa4
AM		 9346
9347 /* Shuffle the toc contents, and at the same time convert the
9348 skip array from booleans into offsets. */
9349 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
9350 goto error_ret;
9351
9352 elf_section_data (toc)->this_hdr.contents = contents;
9353
9354 for (src = contents, off = 0, drop = skip;
9355 src < contents + toc->size;
9356 src += 8, ++drop)
9357 {
ba761f19
AM		 9358 if ((*drop & (can_optimize | ref_from_discarded)) != 0)
9359 off += 8;
c5614fa4
AM		 9360 else if (off != 0)
9361 {
9362 *drop = off;
9363 memcpy (src - off, src, 8);
9364 }
9365 }
854b41e7 9366 *drop = off;
c5614fa4
AM		 9367 toc->rawsize = toc->size;
9368 toc->size = src - contents - off;
9369
ba761f19
AM		 9370 /* Adjust addends for relocs against the toc section sym,
9371 and optimize any accesses we can. */
c5614fa4
AM		 9372 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
9373 {
9374 if (sec->reloc_count == 0
dbaa2011 9375 || discarded_section (sec))
c5614fa4
AM		 9376 continue;
9377
9378 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
854b41e7 9379 info->keep_memory);
c5614fa4
AM		 9380 if (relstart == NULL)
9381 goto error_ret;
9382
9383 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
9384 {
9385 enum elf_ppc64_reloc_type r_type;
9386 unsigned long r_symndx;
9387 asection *sym_sec;
9388 struct elf_link_hash_entry *h;
854b41e7 9389 bfd_vma val;
c5614fa4
AM		 9390
9391 r_type = ELF64_R_TYPE (rel->r_info);
9392 switch (r_type)
9393 {
9394 default:
9395 continue;
9396
9397 case R_PPC64_TOC16:
9398 case R_PPC64_TOC16_LO:
9399 case R_PPC64_TOC16_HI:
9400 case R_PPC64_TOC16_HA:
9401 case R_PPC64_TOC16_DS:
9402 case R_PPC64_TOC16_LO_DS:
9403 case R_PPC64_ADDR64:
9404 break;
9405 }
9406
9407 r_symndx = ELF64_R_SYM (rel->r_info);
9408 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9409 r_symndx, ibfd))
9410 goto error_ret;
9411
ba761f19 9412 if (sym_sec != toc)
c5614fa4
AM		 9413 continue;
9414
ba761f19
AM		 9415 if (h != NULL)
9416 val = h->root.u.def.value;
9417 else
9418 {
9419 val = sym->st_value;
9420 if (val != 0)
9421 local_toc_syms = TRUE;
9422 }
9423
9424 val += rel->r_addend;
854b41e7
AM		 9425
9426 if (val > toc->rawsize)
9427 val = toc->rawsize;
ba761f19
AM		 9428 else if ((skip[val >> 3] & ref_from_discarded) != 0)
9429 continue;
9430 else if ((skip[val >> 3] & can_optimize) != 0)
9431 {
9432 Elf_Internal_Rela *tocrel
425b145b 9433 = toc_relocs + (skip[val >> 3] >> 2);
ba761f19
AM		 9434 unsigned long tsym = ELF64_R_SYM (tocrel->r_info);
9435
9436 switch (r_type)
9437 {
9438 case R_PPC64_TOC16_HA:
9439 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA);
9440 break;
9441
9442 case R_PPC64_TOC16_LO_DS:
9443 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT);
9444 break;
9445
9446 default:
28942f62
AM		 9447 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
9448 ppc_howto_init ();
b140b010 9449 info->callbacks->einfo
695344c0 9450 /* xgettext:c-format */
bc30df16 9451 (_("%P: %H: %s references "
b140b010
AM		 9452 "optimized away TOC entry\n"),
9453 ibfd, sec, rel->r_offset,
9454 ppc64_elf_howto_table[r_type]->name);
9455 bfd_set_error (bfd_error_bad_value);
9456 goto error_ret;
ba761f19
AM		 9457 }
9458 rel->r_addend = tocrel->r_addend;
9459 elf_section_data (sec)->relocs = relstart;
9460 continue;
9461 }
9462
9463 if (h != NULL || sym->st_value != 0)
9464 continue;
854b41e7
AM		 9465
9466 rel->r_addend -= skip[val >> 3];
9467 elf_section_data (sec)->relocs = relstart;
c5614fa4 9468 }
854b41e7
AM		 9469
9470 if (elf_section_data (sec)->relocs != relstart)
9471 free (relstart);
c5614fa4
AM		 9472 }
9473
9474 /* We shouldn't have local or global symbols defined in the TOC,
9475 but handle them anyway. */
df22d223
AM		 9476 if (local_syms != NULL)
9477 for (sym = local_syms;
9478 sym < local_syms + symtab_hdr->sh_info;
9479 ++sym)
9480 if (sym->st_value != 0
9481 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
9482 {
9483 unsigned long i;
854b41e7 9484
df22d223
AM		 9485 if (sym->st_value > toc->rawsize)
9486 i = toc->rawsize >> 3;
9487 else
9488 i = sym->st_value >> 3;
854b41e7 9489
df22d223
AM		 9490 if ((skip[i] & (ref_from_discarded | can_optimize)) != 0)
9491 {
9492 if (local_toc_syms)
4eca0228 9493 _bfd_error_handler
df22d223
AM		 9494 (_("%s defined on removed toc entry"),
9495 bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL));
9496 do
9497 ++i;
9498 while ((skip[i] & (ref_from_discarded | can_optimize)));
9499 sym->st_value = (bfd_vma) i << 3;
9500 }
d62b3684 9501
df22d223
AM		 9502 sym->st_value -= skip[i];
9503 symtab_hdr->contents = (unsigned char *) local_syms;
9504 }
c5614fa4 9505
854b41e7 9506 /* Adjust any global syms defined in this toc input section. */
c5614fa4
AM		 9507 if (toc_inf.global_toc_syms)
9508 {
9509 toc_inf.toc = toc;
9510 toc_inf.skip = skip;
9511 toc_inf.global_toc_syms = FALSE;
9512 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
9513 &toc_inf);
9514 }
854b41e7
AM		 9515
9516 if (toc->reloc_count != 0)
9517 {
d4730f92 9518 Elf_Internal_Shdr *rel_hdr;
854b41e7
AM		 9519 Elf_Internal_Rela *wrel;
9520 bfd_size_type sz;
9521
854b41e7 9522 /* Remove unused toc relocs, and adjust those we keep. */
28be611c
AM		 9523 if (toc_relocs == NULL)
9524 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
9525 info->keep_memory);
9526 if (toc_relocs == NULL)
9527 goto error_ret;
9528
425b145b
AM		 9529 wrel = toc_relocs;
9530 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
ba761f19
AM		 9531 if ((skip[rel->r_offset >> 3]
9532 & (ref_from_discarded | can_optimize)) == 0)
854b41e7
AM		 9533 {
9534 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
9535 wrel->r_info = rel->r_info;
9536 wrel->r_addend = rel->r_addend;
9537 ++wrel;
9538 }
9539 else if (!dec_dynrel_count (rel->r_info, toc, info,
9540 &local_syms, NULL, NULL))
9541 goto error_ret;
9542
425b145b
AM		 9543 elf_section_data (toc)->relocs = toc_relocs;
9544 toc->reloc_count = wrel - toc_relocs;
d4730f92
BS		 9545 rel_hdr = _bfd_elf_single_rel_hdr (toc);
9546 sz = rel_hdr->sh_entsize;
9547 rel_hdr->sh_size = toc->reloc_count * sz;
854b41e7 9548 }
c5614fa4 9549 }
28be611c
AM		 9550 else if (toc_relocs != NULL
9551 && elf_section_data (toc)->relocs != toc_relocs)
425b145b 9552 free (toc_relocs);
c5614fa4
AM		 9553
9554 if (local_syms != NULL
9555 && symtab_hdr->contents != (unsigned char *) local_syms)
9556 {
9557 if (!info->keep_memory)
9558 free (local_syms);
9559 else
9560 symtab_hdr->contents = (unsigned char *) local_syms;
9561 }
9562 free (skip);
9563 }
9564
9565 return TRUE;
9566}
9567
1bbe0902
AM		 9568/* Return true iff input section I references the TOC using
9569 instructions limited to +/-32k offsets. */
9570
9571bfd_boolean
9572ppc64_elf_has_small_toc_reloc (asection *i)
9573{
9574 return (is_ppc64_elf (i->owner)
9575 && ppc64_elf_tdata (i->owner)->has_small_toc_reloc);
9576}
9577
927be08e
AM		 9578/* Allocate space for one GOT entry. */
9579
9580static void
9581allocate_got (struct elf_link_hash_entry *h,
9582 struct bfd_link_info *info,
9583 struct got_entry *gent)
9584{
9585 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9586 bfd_boolean dyn;
9587 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
9588 int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)
9589 ? 16 : 8);
9590 int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD
9591 ? 2 : 1) * sizeof (Elf64_External_Rela);
9592 asection *got = ppc64_elf_tdata (gent->owner)->got;
9593
9594 gent->got.offset = got->size;
9595 got->size += entsize;
9596
9597 dyn = htab->elf.dynamic_sections_created;
19e08130 9598 if (h->type == STT_GNU_IFUNC)
927be08e 9599 {
33e44f2e 9600 htab->elf.irelplt->size += rentsize;
19e08130 9601 htab->got_reli_size += rentsize;
927be08e 9602 }
0e1862bb 9603 else if ((bfd_link_pic (info)
19e08130
AM		 9604 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
9605 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
9606 || h->root.type != bfd_link_hash_undefweak))
927be08e 9607 {
19e08130 9608 asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
927be08e 9609 relgot->size += rentsize;
927be08e
AM		 9610 }
9611}
9612
7865406b
AM		 9613/* This function merges got entries in the same toc group. */
9614
9615static void
9616merge_got_entries (struct got_entry **pent)
9617{
9618 struct got_entry *ent, *ent2;
9619
9620 for (ent = *pent; ent != NULL; ent = ent->next)
9621 if (!ent->is_indirect)
9622 for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next)
9623 if (!ent2->is_indirect
9624 && ent2->addend == ent->addend
9625 && ent2->tls_type == ent->tls_type
9626 && elf_gp (ent2->owner) == elf_gp (ent->owner))
9627 {
9628 ent2->is_indirect = TRUE;
9629 ent2->got.ent = ent;
9630 }
9631}
9632
65f38f15
AM		 9633/* Allocate space in .plt, .got and associated reloc sections for
9634 dynamic relocs. */
5bd4f169 9635
b34976b6 9636static bfd_boolean
4ce794b7 9637allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 9638{
65f38f15
AM		 9639 struct bfd_link_info *info;
9640 struct ppc_link_hash_table *htab;
5bd4f169 9641 asection *s;
65f38f15 9642 struct ppc_link_hash_entry *eh;
0b8bcf0d 9643 struct got_entry **pgent, *gent;
5bd4f169 9644
e92d460e 9645 if (h->root.type == bfd_link_hash_indirect)
b34976b6 9646 return TRUE;
5bd4f169 9647
65f38f15
AM		 9648 info = (struct bfd_link_info *) inf;
9649 htab = ppc_hash_table (info);
4dfe6ac6
NC		 9650 if (htab == NULL)
9651 return FALSE;
5bd4f169 9652
951fd09b
AM		 9653 eh = (struct ppc_link_hash_entry *) h;
9654 /* Run through the TLS GD got entries first if we're changing them
9655 to TPREL. */
e7b938ca 9656 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 9657 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9658 if (gent->got.refcount > 0
9659 && (gent->tls_type & TLS_GD) != 0)
9660 {
9661 /* This was a GD entry that has been converted to TPREL. If
9662 there happens to be a TPREL entry we can use that one. */
9663 struct got_entry *ent;
9664 for (ent = h->got.glist; ent != NULL; ent = ent->next)
9665 if (ent->got.refcount > 0
9666 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 9667 && ent->addend == gent->addend
9668 && ent->owner == gent->owner)
951fd09b
AM		 9669 {
9670 gent->got.refcount = 0;
9671 break;
9672 }
9673
9674 /* If not, then we'll be using our own TPREL entry. */
9675 if (gent->got.refcount != 0)
9676 gent->tls_type = TLS_TLS | TLS_TPREL;
9677 }
9678
7865406b
AM		 9679 /* Remove any list entry that won't generate a word in the GOT before
9680 we call merge_got_entries. Otherwise we risk merging to empty
9681 entries. */
0b8bcf0d
AM		 9682 pgent = &h->got.glist;
9683 while ((gent = *pgent) != NULL)
411e1bfb 9684 if (gent->got.refcount > 0)
7865406b
AM		 9685 {
9686 if ((gent->tls_type & TLS_LD) != 0
9687 && !h->def_dynamic)
9688 {
9689 ppc64_tlsld_got (gent->owner)->got.refcount += 1;
9690 *pgent = gent->next;
9691 }
9692 else
9693 pgent = &gent->next;
9694 }
9695 else
9696 *pgent = gent->next;
9697
9698 if (!htab->do_multi_toc)
9699 merge_got_entries (&h->got.glist);
9700
9701 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9702 if (!gent->is_indirect)
411e1bfb
AM		 9703 {
9704 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 9705 Undefined weak syms won't yet be marked as dynamic,
9706 nor will all TLS symbols. */
411e1bfb 9707 if (h->dynindx == -1
b099ab9f 9708 && !h->forced_local
25f23106 9709 && h->type != STT_GNU_IFUNC
b099ab9f 9710 && htab->elf.dynamic_sections_created)
411e1bfb 9711 {
c152c796 9712 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 9713 return FALSE;
9714 }
65f38f15 9715
0c8d6e5c 9716 if (!is_ppc64_elf (gent->owner))
927be08e 9717 abort ();
0ffa91dd 9718
927be08e 9719 allocate_got (h, info, gent);
411e1bfb 9720 }
65f38f15 9721
8a2058b5
AM		 9722 if (!htab->elf.dynamic_sections_created
9723 && h->type != STT_GNU_IFUNC)
9724 eh->dyn_relocs = NULL;
9725
9726 if (eh->dyn_relocs != NULL)
65f38f15 9727 {
8a2058b5
AM		 9728 struct elf_dyn_relocs *p, **pp;
9729
57e7d118
AM		 9730 /* In the shared -Bsymbolic case, discard space allocated for
9731 dynamic pc-relative relocs against symbols which turn out to
9732 be defined in regular objects. For the normal shared case,
9733 discard space for relocs that have become local due to symbol
9734 visibility changes. */
9735
9736 if (bfd_link_pic (info))
65f38f15 9737 {
57e7d118
AM		 9738 /* Relocs that use pc_count are those that appear on a call
9739 insn, or certain REL relocs (see must_be_dyn_reloc) that
9740 can be generated via assembly. We want calls to
9741 protected symbols to resolve directly to the function
9742 rather than going via the plt. If people want function
9743 pointer comparisons to work as expected then they should
9744 avoid writing weird assembly. */
9745 if (SYMBOL_CALLS_LOCAL (info, h))
9746 {
57e7d118
AM		 9747 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
9748 {
9749 p->count -= p->pc_count;
9750 p->pc_count = 0;
9751 if (p->count == 0)
9752 *pp = p->next;
9753 else
9754 pp = &p->next;
9755 }
9756 }
65f38f15 9757
57e7d118
AM		 9758 /* Also discard relocs on undefined weak syms with
9759 non-default visibility. */
9760 if (eh->dyn_relocs != NULL
9761 && h->root.type == bfd_link_hash_undefweak)
5bd4f169 9762 {
57e7d118
AM		 9763 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
9764 eh->dyn_relocs = NULL;
9765
9766 /* Make sure this symbol is output as a dynamic symbol.
9767 Undefined weak syms won't yet be marked as dynamic. */
9768 else if (h->dynindx == -1
9769 && !h->forced_local)
9770 {
9771 if (! bfd_elf_link_record_dynamic_symbol (info, h))
9772 return FALSE;
9773 }
5bd4f169 9774 }
65f38f15 9775 }
57e7d118 9776 else if (h->type == STT_GNU_IFUNC)
dfbb6ac9 9777 {
8a2058b5
AM		 9778 /* A plt entry is always created when making direct calls to
9779 an ifunc, even when building a static executable, but
9780 that doesn't cover all cases. We may have only an ifunc
9781 initialised function pointer for a given ifunc symbol.
9782
9783 For ELFv2, dynamic relocations are not required when
9784 generating a global entry PLT stub. */
9785 if (abiversion (info->output_bfd) >= 2)
9786 {
9787 if (global_entry_stub (h))
9788 eh->dyn_relocs = NULL;
9789 }
9790
9791 /* For ELFv1 we have function descriptors. Descriptors need
9792 to be treated like PLT entries and thus have dynamic
9793 relocations. One exception is when the function
9794 descriptor is copied into .dynbss (which should only
9795 happen with ancient versions of gcc). */
9796 else if (h->needs_copy)
dfbb6ac9 9797 eh->dyn_relocs = NULL;
57e7d118
AM		 9798 }
9799 else if (ELIMINATE_COPY_RELOCS)
9800 {
8a2058b5 9801 /* For the non-pic case, discard space for relocs against
57e7d118
AM		 9802 symbols which turn out to need copy relocs or are not
9803 dynamic. */
dfbb6ac9 9804
8a2058b5
AM		 9805 /* First make sure this symbol is output as a dynamic symbol.
9806 Undefined weak syms won't yet be marked as dynamic. */
9807 if (h->root.type == bfd_link_hash_undefweak
9808 && !h->non_got_ref
9809 && !h->def_regular
9810 && h->dynindx == -1
9811 && !h->forced_local
9812 && !bfd_elf_link_record_dynamic_symbol (info, h))
9813 return FALSE;
57e7d118 9814
8a2058b5
AM		 9815 if (h->non_got_ref
9816 || h->def_regular
9817 || h->dynindx == -1)
9818 eh->dyn_relocs = NULL;
57e7d118
AM		 9819 }
9820
9821 /* Finally, allocate space. */
9822 for (p = eh->dyn_relocs; p != NULL; p = p->next)
9823 {
9824 asection *sreloc = elf_section_data (p->sec)->sreloc;
9825 if (eh->elf.type == STT_GNU_IFUNC)
9826 sreloc = htab->elf.irelplt;
9827 sreloc->size += p->count * sizeof (Elf64_External_Rela);
dfbb6ac9 9828 }
65f38f15 9829 }
57e7d118
AM		 9830
9831 if ((htab->elf.dynamic_sections_created
9832 && h->dynindx != -1
9833 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
9834 || h->type == STT_GNU_IFUNC)
65f38f15 9835 {
57e7d118
AM		 9836 struct plt_entry *pent;
9837 bfd_boolean doneone = FALSE;
9838 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9839 if (pent->plt.refcount > 0)
9840 {
9841 if (!htab->elf.dynamic_sections_created
9842 || h->dynindx == -1)
9843 {
9844 s = htab->elf.iplt;
9845 pent->plt.offset = s->size;
9846 s->size += PLT_ENTRY_SIZE (htab);
9847 s = htab->elf.irelplt;
9848 }
9849 else
9850 {
9851 /* If this is the first .plt entry, make room for the special
9852 first entry. */
9853 s = htab->elf.splt;
9854 if (s->size == 0)
9855 s->size += PLT_INITIAL_ENTRY_SIZE (htab);
65f38f15 9856
57e7d118 9857 pent->plt.offset = s->size;
65f38f15 9858
57e7d118
AM		 9859 /* Make room for this entry. */
9860 s->size += PLT_ENTRY_SIZE (htab);
65f38f15 9861
57e7d118
AM		 9862 /* Make room for the .glink code. */
9863 s = htab->glink;
9864 if (s->size == 0)
9865 s->size += GLINK_CALL_STUB_SIZE;
9866 if (htab->opd_abi)
9867 {
9868 /* We need bigger stubs past index 32767. */
9869 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
9870 s->size += 4;
9871 s->size += 2*4;
9872 }
9873 else
9874 s->size += 4;
65f38f15 9875
57e7d118
AM		 9876 /* We also need to make an entry in the .rela.plt section. */
9877 s = htab->elf.srelplt;
9878 }
9879 s->size += sizeof (Elf64_External_Rela);
9880 doneone = TRUE;
9881 }
9882 else
9883 pent->plt.offset = (bfd_vma) -1;
9884 if (!doneone)
9885 {
9886 h->plt.plist = NULL;
9887 h->needs_plt = 0;
9888 }
65f38f15 9889 }
57e7d118 9890 else
65f38f15 9891 {
57e7d118
AM		 9892 h->plt.plist = NULL;
9893 h->needs_plt = 0;
65f38f15
AM		 9894 }
9895
b34976b6 9896 return TRUE;
65f38f15
AM		 9897}
9898
a345bc8d
AM		 9899/* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections
9900 to set up space for global entry stubs. These are put in glink,
9901 after the branch table. */
65f38f15 9902
b34976b6 9903static bfd_boolean
a345bc8d 9904size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
65f38f15 9905{
a345bc8d
AM		 9906 struct bfd_link_info *info;
9907 struct ppc_link_hash_table *htab;
9908 struct plt_entry *pent;
9909 asection *s;
65f38f15 9910
a345bc8d
AM		 9911 if (h->root.type == bfd_link_hash_indirect)
9912 return TRUE;
65f38f15 9913
a345bc8d
AM		 9914 if (!h->pointer_equality_needed)
9915 return TRUE;
65f38f15 9916
a345bc8d
AM		 9917 if (h->def_regular)
9918 return TRUE;
65f38f15 9919
a345bc8d
AM		 9920 info = inf;
9921 htab = ppc_hash_table (info);
9922 if (htab == NULL)
9923 return FALSE;
9924
9925 s = htab->glink;
9926 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9927 if (pent->plt.offset != (bfd_vma) -1
9928 && pent->addend == 0)
9929 {
afe397ea
AM		 9930 /* For ELFv2, if this symbol is not defined in a regular file
9931 and we are not generating a shared library or pie, then we
9932 need to define the symbol in the executable on a call stub.
9933 This is to avoid text relocations. */
a345bc8d 9934 s->size = (s->size + 15) & -16;
8a2058b5 9935 h->root.type = bfd_link_hash_defined;
afe397ea
AM		 9936 h->root.u.def.section = s;
9937 h->root.u.def.value = s->size;
a345bc8d
AM		 9938 s->size += 16;
9939 break;
9940 }
9941 return TRUE;
9942}
9943
9944/* Set DF_TEXTREL if we find any dynamic relocs that apply to
9945 read-only sections. */
9946
9947static bfd_boolean
9948maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
9949{
9950 if (h->root.type == bfd_link_hash_indirect)
9951 return TRUE;
9952
9953 if (readonly_dynrelocs (h))
9954 {
9955 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
9956
9957 /* Not an error, just cut short the traversal. */
9958 return FALSE;
65f38f15 9959 }
b34976b6 9960 return TRUE;
65f38f15
AM		 9961}
9962
9963/* Set the sizes of the dynamic sections. */
9964
b34976b6 9965static bfd_boolean
ee67d69a 9966ppc64_elf_size_dynamic_sections (bfd *output_bfd,
4ce794b7 9967 struct bfd_link_info *info)
65f38f15
AM		 9968{
9969 struct ppc_link_hash_table *htab;
9970 bfd *dynobj;
9971 asection *s;
b34976b6 9972 bfd_boolean relocs;
65f38f15 9973 bfd *ibfd;
7865406b 9974 struct got_entry *first_tlsld;
65f38f15
AM		 9975
9976 htab = ppc_hash_table (info);
4dfe6ac6
NC		 9977 if (htab == NULL)
9978 return FALSE;
9979
65f38f15
AM		 9980 dynobj = htab->elf.dynobj;
9981 if (dynobj == NULL)
9982 abort ();
9983
9984 if (htab->elf.dynamic_sections_created)
9985 {
9986 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 9987 if (bfd_link_executable (info) && !info->nointerp)
65f38f15 9988 {
3d4d4302 9989 s = bfd_get_linker_section (dynobj, ".interp");
65f38f15
AM		 9990 if (s == NULL)
9991 abort ();
eea6121a 9992 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 9993 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
9994 }
9995 }
9996
9997 /* Set up .got offsets for local syms, and space for local dynamic
9998 relocs. */
c72f2fb2 9999 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
65f38f15 10000 {
411e1bfb
AM		 10001 struct got_entry **lgot_ents;
10002 struct got_entry **end_lgot_ents;
e054468f
AM		 10003 struct plt_entry **local_plt;
10004 struct plt_entry **end_local_plt;
f961d9dd 10005 unsigned char *lgot_masks;
65f38f15
AM		 10006 bfd_size_type locsymcount;
10007 Elf_Internal_Shdr *symtab_hdr;
65f38f15 10008
0c8d6e5c 10009 if (!is_ppc64_elf (ibfd))
65f38f15
AM		 10010 continue;
10011
10012 for (s = ibfd->sections; s != NULL; s = s->next)
10013 {
19e08130 10014 struct ppc_dyn_relocs *p;
65f38f15 10015
6edfbbad 10016 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
65f38f15 10017 {
ec338859
AM		 10018 if (!bfd_is_abs_section (p->sec)
10019 && bfd_is_abs_section (p->sec->output_section))
10020 {
10021 /* Input section has been discarded, either because
10022 it is a copy of a linkonce section or due to
10023 linker script /DISCARD/, so we'll be discarding
10024 the relocs too. */
10025 }
248866a8 10026 else if (p->count != 0)
ec338859 10027 {
19e08130
AM		 10028 asection *srel = elf_section_data (p->sec)->sreloc;
10029 if (p->ifunc)
33e44f2e 10030 srel = htab->elf.irelplt;
eea6121a 10031 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 10032 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
10033 info->flags |= DF_TEXTREL;
ec338859 10034 }
65f38f15
AM		 10035 }
10036 }
10037
411e1bfb
AM		 10038 lgot_ents = elf_local_got_ents (ibfd);
10039 if (!lgot_ents)
65f38f15
AM		 10040 continue;
10041
0ffa91dd 10042 symtab_hdr = &elf_symtab_hdr (ibfd);
65f38f15 10043 locsymcount = symtab_hdr->sh_info;
411e1bfb 10044 end_lgot_ents = lgot_ents + locsymcount;
e054468f
AM		 10045 local_plt = (struct plt_entry **) end_lgot_ents;
10046 end_local_plt = local_plt + locsymcount;
f961d9dd 10047 lgot_masks = (unsigned char *) end_local_plt;
e717da7e 10048 s = ppc64_elf_tdata (ibfd)->got;
e7b938ca 10049 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 10050 {
0b8bcf0d 10051 struct got_entry **pent, *ent;
411e1bfb 10052
0b8bcf0d
AM		 10053 pent = lgot_ents;
10054 while ((ent = *pent) != NULL)
411e1bfb
AM		 10055 if (ent->got.refcount > 0)
10056 {
e7b938ca 10057 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 10058 {
927be08e 10059 ppc64_tlsld_got (ibfd)->got.refcount += 1;
0b8bcf0d 10060 *pent = ent->next;
411e1bfb
AM		 10061 }
10062 else
10063 {
19e08130
AM		 10064 unsigned int ent_size = 8;
10065 unsigned int rel_size = sizeof (Elf64_External_Rela);
10066
eea6121a 10067 ent->got.offset = s->size;
e7b938ca 10068 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
927be08e 10069 {
19e08130
AM		 10070 ent_size *= 2;
10071 rel_size *= 2;
10072 }
10073 s->size += ent_size;
10074 if ((*lgot_masks & PLT_IFUNC) != 0)
10075 {
33e44f2e 10076 htab->elf.irelplt->size += rel_size;
19e08130
AM		 10077 htab->got_reli_size += rel_size;
10078 }
0e1862bb 10079 else if (bfd_link_pic (info))
19e08130
AM		 10080 {
10081 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
10082 srel->size += rel_size;
927be08e 10083 }
0b8bcf0d 10084 pent = &ent->next;
411e1bfb
AM		 10085 }
10086 }
10087 else
0b8bcf0d 10088 *pent = ent->next;
65f38f15 10089 }
e054468f
AM		 10090
10091 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
10092 for (; local_plt < end_local_plt; ++local_plt)
10093 {
10094 struct plt_entry *ent;
10095
10096 for (ent = *local_plt; ent != NULL; ent = ent->next)
10097 if (ent->plt.refcount > 0)
10098 {
33e44f2e 10099 s = htab->elf.iplt;
e054468f 10100 ent->plt.offset = s->size;
b9e5796b 10101 s->size += PLT_ENTRY_SIZE (htab);
e054468f 10102
33e44f2e 10103 htab->elf.irelplt->size += sizeof (Elf64_External_Rela);
e054468f
AM		 10104 }
10105 else
10106 ent->plt.offset = (bfd_vma) -1;
10107 }
65f38f15
AM		 10108 }
10109
10110 /* Allocate global sym .plt and .got entries, and space for global
10111 sym dynamic relocs. */
4ce794b7 10112 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
a345bc8d
AM		 10113 /* Stash the end of glink branch table. */
10114 if (htab->glink != NULL)
10115 htab->glink->rawsize = htab->glink->size;
10116
0e1862bb 10117 if (!htab->opd_abi && !bfd_link_pic (info))
a345bc8d 10118 elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info);
65f38f15 10119
7865406b 10120 first_tlsld = NULL;
c72f2fb2 10121 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
102890f0 10122 {
7865406b
AM		 10123 struct got_entry *ent;
10124
0c8d6e5c 10125 if (!is_ppc64_elf (ibfd))
102890f0
AM		 10126 continue;
10127
7865406b
AM		 10128 ent = ppc64_tlsld_got (ibfd);
10129 if (ent->got.refcount > 0)
102890f0 10130 {
7865406b 10131 if (!htab->do_multi_toc && first_tlsld != NULL)
102890f0 10132 {
7865406b
AM		 10133 ent->is_indirect = TRUE;
10134 ent->got.ent = first_tlsld;
10135 }
10136 else
10137 {
10138 if (first_tlsld == NULL)
10139 first_tlsld = ent;
10140 s = ppc64_elf_tdata (ibfd)->got;
10141 ent->got.offset = s->size;
10142 ent->owner = ibfd;
10143 s->size += 16;
0e1862bb 10144 if (bfd_link_pic (info))
7865406b
AM		 10145 {
10146 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
10147 srel->size += sizeof (Elf64_External_Rela);
10148 }
102890f0
AM		 10149 }
10150 }
10151 else
7865406b 10152 ent->got.offset = (bfd_vma) -1;
102890f0
AM		 10153 }
10154
65f38f15
AM		 10155 /* We now have determined the sizes of the various dynamic sections.
10156 Allocate memory for them. */
b34976b6 10157 relocs = FALSE;
65f38f15
AM		 10158 for (s = dynobj->sections; s != NULL; s = s->next)
10159 {
10160 if ((s->flags & SEC_LINKER_CREATED) == 0)
10161 continue;
10162
4ce794b7 10163 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 10164 /* These haven't been allocated yet; don't strip. */
10165 continue;
33e44f2e
AM		 10166 else if (s == htab->elf.sgot
10167 || s == htab->elf.splt
10168 || s == htab->elf.iplt
c456f082
AM		 10169 || s == htab->glink
10170 || s == htab->dynbss)
65f38f15
AM		 10171 {
10172 /* Strip this section if we don't need it; see the
10173 comment below. */
5bd4f169 10174 }
58d180e8
AM		 10175 else if (s == htab->glink_eh_frame)
10176 {
10177 if (!bfd_is_abs_section (s->output_section))
10178 /* Not sized yet. */
10179 continue;
10180 }
70cc837d 10181 else if (CONST_STRNEQ (s->name, ".rela"))
5bd4f169 10182 {
c456f082 10183 if (s->size != 0)
5bd4f169 10184 {
33e44f2e 10185 if (s != htab->elf.srelplt)
b34976b6 10186 relocs = TRUE;
5bd4f169
AM		 10187
10188 /* We use the reloc_count field as a counter if we need
10189 to copy relocs into the output file. */
10190 s->reloc_count = 0;
10191 }
10192 }
65f38f15 10193 else
5bd4f169
AM		 10194 {
10195 /* It's not one of our sections, so don't allocate space. */
10196 continue;
10197 }
10198
eea6121a 10199 if (s->size == 0)
5bd4f169 10200 {
c456f082
AM		 10201 /* If we don't need this section, strip it from the
10202 output file. This is mostly to handle .rela.bss and
10203 .rela.plt. We must create both sections in
10204 create_dynamic_sections, because they must be created
10205 before the linker maps input sections to output
10206 sections. The linker does that before
10207 adjust_dynamic_symbol is called, and it is that
10208 function which decides whether anything needs to go
10209 into these sections. */
8423293d 10210 s->flags |= SEC_EXCLUDE;
5bd4f169
AM		 10211 continue;
10212 }
10213
c456f082 10214 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM		 10215 continue;
10216
65f38f15
AM		 10217 /* Allocate memory for the section contents. We use bfd_zalloc
10218 here in case unused entries are not reclaimed before the
10219 section's contents are written out. This should not happen,
411e1bfb
AM		 10220 but this way if it does we get a R_PPC64_NONE reloc in .rela
10221 sections instead of garbage.
10222 We also rely on the section contents being zero when writing
10223 the GOT. */
eea6121a 10224 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 10225 if (s->contents == NULL)
b34976b6 10226 return FALSE;
5bd4f169
AM		 10227 }
10228
c72f2fb2 10229 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
e717da7e 10230 {
0c8d6e5c 10231 if (!is_ppc64_elf (ibfd))
7b53ace3
AM		 10232 continue;
10233
e717da7e 10234 s = ppc64_elf_tdata (ibfd)->got;
33e44f2e 10235 if (s != NULL && s != htab->elf.sgot)
e717da7e 10236 {
eea6121a 10237 if (s->size == 0)
8423293d 10238 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 10239 else
10240 {
eea6121a 10241 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 10242 if (s->contents == NULL)
10243 return FALSE;
10244 }
10245 }
10246 s = ppc64_elf_tdata (ibfd)->relgot;
10247 if (s != NULL)
10248 {
eea6121a 10249 if (s->size == 0)
8423293d 10250 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 10251 else
10252 {
eea6121a 10253 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 10254 if (s->contents == NULL)
10255 return FALSE;
10256 relocs = TRUE;
10257 s->reloc_count = 0;
10258 }
10259 }
10260 }
10261
e86ce104 10262 if (htab->elf.dynamic_sections_created)
5bd4f169 10263 {
e8910a83
AM		 10264 bfd_boolean tls_opt;
10265
5bd4f169
AM		 10266 /* Add some entries to the .dynamic section. We fill in the
10267 values later, in ppc64_elf_finish_dynamic_sections, but we
10268 must add the entries now so that we get the correct size for
10269 the .dynamic section. The DT_DEBUG entry is filled in by the
10270 dynamic linker and used by the debugger. */
dc810e39 10271#define add_dynamic_entry(TAG, VAL) \
5a580b3a 10272 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 10273
0e1862bb 10274 if (bfd_link_executable (info))
5bd4f169 10275 {
dc810e39 10276 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 10277 return FALSE;
5bd4f169
AM		 10278 }
10279
33e44f2e 10280 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
5bd4f169 10281 {
dc810e39
AM		 10282 if (!add_dynamic_entry (DT_PLTGOT, 0)
10283 || !add_dynamic_entry (DT_PLTRELSZ, 0)
10284 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 10285 || !add_dynamic_entry (DT_JMPREL, 0)
10286 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 10287 return FALSE;
5bd4f169
AM		 10288 }
10289
ee67d69a 10290 if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1)
19397422
AM		 10291 {
10292 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
10293 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 10294 return FALSE;
19397422
AM		 10295 }
10296
7c9cf415 10297 tls_opt = (htab->params->tls_get_addr_opt
e8910a83
AM		 10298 && htab->tls_get_addr_fd != NULL
10299 && htab->tls_get_addr_fd->elf.plt.plist != NULL);
10300 if (tls_opt || !htab->opd_abi)
10301 {
10302 if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0))
10303 return FALSE;
10304 }
a7f2871e 10305
5bd4f169
AM		 10306 if (relocs)
10307 {
dc810e39
AM		 10308 if (!add_dynamic_entry (DT_RELA, 0)
10309 || !add_dynamic_entry (DT_RELASZ, 0)
10310 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 10311 return FALSE;
5bd4f169 10312
65f38f15
AM		 10313 /* If any dynamic relocs apply to a read-only section,
10314 then we need a DT_TEXTREL entry. */
248866a8 10315 if ((info->flags & DF_TEXTREL) == 0)
a345bc8d 10316 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
5bd4f169 10317
65f38f15 10318 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 10319 {
65f38f15 10320 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 10321 return FALSE;
5bd4f169 10322 }
5bd4f169 10323 }
5bd4f169 10324 }
65f38f15 10325#undef add_dynamic_entry
5bd4f169 10326
b34976b6 10327 return TRUE;
5bd4f169
AM		 10328}
10329
a345bc8d
AM		 10330/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
10331
10332static bfd_boolean
10333ppc64_elf_hash_symbol (struct elf_link_hash_entry *h)
10334{
10335 if (h->plt.plist != NULL
10336 && !h->def_regular
10337 && !h->pointer_equality_needed)
10338 return FALSE;
10339
10340 return _bfd_elf_hash_symbol (h);
10341}
10342
721956f4 10343/* Determine the type of stub needed, if any, for a call. */
5bd4f169 10344
4ce794b7
AM		 10345static inline enum ppc_stub_type
10346ppc_type_of_stub (asection *input_sec,
10347 const Elf_Internal_Rela *rel,
10348 struct ppc_link_hash_entry **hash,
e054468f 10349 struct plt_entry **plt_ent,
6911b7dc
AM		 10350 bfd_vma destination,
10351 unsigned long local_off)
5bd4f169 10352{
721956f4
AM		 10353 struct ppc_link_hash_entry *h = *hash;
10354 bfd_vma location;
10355 bfd_vma branch_offset;
10356 bfd_vma max_branch_offset;
4ce794b7 10357 enum elf_ppc64_reloc_type r_type;
5bd4f169 10358
721956f4
AM		 10359 if (h != NULL)
10360 {
e054468f 10361 struct plt_entry *ent;
7fe2b9a6 10362 struct ppc_link_hash_entry *fdh = h;
b31867b6
AM		 10363 if (h->oh != NULL
10364 && h->oh->is_func_descriptor)
7b8f6675
AM		 10365 {
10366 fdh = ppc_follow_link (h->oh);
10367 *hash = fdh;
10368 }
8387904d 10369
e054468f
AM		 10370 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
10371 if (ent->addend == rel->r_addend
10372 && ent->plt.offset != (bfd_vma) -1)
10373 {
e054468f
AM		 10374 *plt_ent = ent;
10375 return ppc_stub_plt_call;
10376 }
5bd4f169 10377
7fe2b9a6
AM		 10378 /* Here, we know we don't have a plt entry. If we don't have a
10379 either a defined function descriptor or a defined entry symbol
10380 in a regular object file, then it is pointless trying to make
10381 any other type of stub. */
854b41e7
AM		 10382 if (!is_static_defined (&fdh->elf)
10383 && !is_static_defined (&h->elf))
721956f4 10384 return ppc_stub_none;
5d1634d7 10385 }
e054468f
AM		 10386 else if (elf_local_got_ents (input_sec->owner) != NULL)
10387 {
10388 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner);
10389 struct plt_entry **local_plt = (struct plt_entry **)
10390 elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info;
10391 unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
10392
10393 if (local_plt[r_symndx] != NULL)
10394 {
10395 struct plt_entry *ent;
10396
10397 for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next)
10398 if (ent->addend == rel->r_addend
10399 && ent->plt.offset != (bfd_vma) -1)
10400 {
10401 *plt_ent = ent;
10402 return ppc_stub_plt_call;
10403 }
10404 }
10405 }
5d1634d7 10406
721956f4
AM		 10407 /* Determine where the call point is. */
10408 location = (input_sec->output_offset
10409 + input_sec->output_section->vma
10410 + rel->r_offset);
5d1634d7 10411
721956f4
AM		 10412 branch_offset = destination - location;
10413 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 10414
721956f4
AM		 10415 /* Determine if a long branch stub is needed. */
10416 max_branch_offset = 1 << 25;
4ce794b7 10417 if (r_type != R_PPC64_REL24)
721956f4 10418 max_branch_offset = 1 << 15;
5d1634d7 10419
6911b7dc 10420 if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off)
721956f4
AM		 10421 /* We need a stub. Figure out whether a long_branch or plt_branch
10422 is needed later. */
10423 return ppc_stub_long_branch;
5d1634d7 10424
721956f4 10425 return ppc_stub_none;
5d1634d7
AM		 10426}
10427
794e51c0
AM		 10428/* With power7 weakly ordered memory model, it is possible for ld.so
10429 to update a plt entry in one thread and have another thread see a
10430 stale zero toc entry. To avoid this we need some sort of acquire
10431 barrier in the call stub. One solution is to make the load of the
10432 toc word seem to appear to depend on the load of the function entry
10433 word. Another solution is to test for r2 being zero, and branch to
10434 the appropriate glink entry if so.
10435
10436 . fake dep barrier compare
71a39c98
AM		 10437 . ld 12,xxx(2) ld 12,xxx(2)
10438 . mtctr 12 mtctr 12
10439 . xor 11,12,12 ld 2,xxx+8(2)
794e51c0
AM		 10440 . add 2,2,11 cmpldi 2,0
10441 . ld 2,xxx+8(2) bnectr+
10442 . bctr b <glink_entry>
10443
10444 The solution involving the compare turns out to be faster, so
10445 that's what we use unless the branch won't reach. */
10446
10447#define ALWAYS_USE_FAKE_DEP 0
10448#define ALWAYS_EMIT_R2SAVE 0
5d1634d7 10449
5d1634d7
AM		 10450#define PPC_LO(v) ((v) & 0xffff)
10451#define PPC_HI(v) (((v) >> 16) & 0xffff)
10452#define PPC_HA(v) PPC_HI ((v) + 0x8000)
10453
794e51c0
AM		 10454static inline unsigned int
10455plt_stub_size (struct ppc_link_hash_table *htab,
10456 struct ppc_stub_hash_entry *stub_entry,
10457 bfd_vma off)
10458{
b9e5796b
AM		 10459 unsigned size = 12;
10460
10461 if (ALWAYS_EMIT_R2SAVE
10462 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10463 size += 4;
10464 if (PPC_HA (off) != 0)
794e51c0 10465 size += 4;
b9e5796b
AM		 10466 if (htab->opd_abi)
10467 {
10468 size += 4;
e7d1c40c 10469 if (htab->params->plt_static_chain)
b9e5796b 10470 size += 4;
bd4d2eaa
AM		 10471 if (htab->params->plt_thread_safe
10472 && htab->elf.dynamic_sections_created
10473 && stub_entry->h != NULL
10474 && stub_entry->h->elf.dynindx != -1)
b9e5796b 10475 size += 8;
e7d1c40c 10476 if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off))
b9e5796b
AM		 10477 size += 4;
10478 }
794e51c0
AM		 10479 if (stub_entry->h != NULL
10480 && (stub_entry->h == htab->tls_get_addr_fd
10481 || stub_entry->h == htab->tls_get_addr)
7c9cf415 10482 && htab->params->tls_get_addr_opt)
794e51c0
AM		 10483 size += 13 * 4;
10484 return size;
10485}
10486
10487/* If this stub would cross fewer 2**plt_stub_align boundaries if we align,
10488 then return the padding needed to do so. */
10489static inline unsigned int
10490plt_stub_pad (struct ppc_link_hash_table *htab,
10491 struct ppc_stub_hash_entry *stub_entry,
10492 bfd_vma plt_off)
10493{
e7d1c40c 10494 int stub_align = 1 << htab->params->plt_stub_align;
794e51c0 10495 unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off);
6f20ed8a 10496 bfd_vma stub_off = stub_entry->group->stub_sec->size;
794e51c0
AM		 10497
10498 if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align)
e05fa0ba 10499 > ((stub_size - 1) & -stub_align))
794e51c0
AM		 10500 return stub_align - (stub_off & (stub_align - 1));
10501 return 0;
10502}
10503
10504/* Build a .plt call stub. */
10505
10506static inline bfd_byte *
10507build_plt_stub (struct ppc_link_hash_table *htab,
10508 struct ppc_stub_hash_entry *stub_entry,
10509 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
10510{
e7d1c40c 10511 bfd *obfd = htab->params->stub_bfd;
b9e5796b 10512 bfd_boolean plt_load_toc = htab->opd_abi;
e7d1c40c 10513 bfd_boolean plt_static_chain = htab->params->plt_static_chain;
bd4d2eaa
AM		 10514 bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe
10515 && htab->elf.dynamic_sections_created
10516 && stub_entry->h != NULL
10517 && stub_entry->h->elf.dynindx != -1);
794e51c0
AM		 10518 bfd_boolean use_fake_dep = plt_thread_safe;
10519 bfd_vma cmp_branch_off = 0;
10520
10521 if (!ALWAYS_USE_FAKE_DEP
b9e5796b 10522 && plt_load_toc
794e51c0 10523 && plt_thread_safe
bd4d2eaa
AM		 10524 && !((stub_entry->h == htab->tls_get_addr_fd
10525 || stub_entry->h == htab->tls_get_addr)
7c9cf415 10526 && htab->params->tls_get_addr_opt))
794e51c0
AM		 10527 {
10528 bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1;
b9e5796b
AM		 10529 bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab))
10530 / PLT_ENTRY_SIZE (htab));
794e51c0
AM		 10531 bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8;
10532 bfd_vma to, from;
10533
68d62958
AM		 10534 if (pltindex > 32768)
10535 glinkoff += (pltindex - 32768) * 4;
794e51c0
AM		 10536 to = (glinkoff
10537 + htab->glink->output_offset
10538 + htab->glink->output_section->vma);
6f20ed8a 10539 from = (p - stub_entry->group->stub_sec->contents
794e51c0
AM		 10540 + 4 * (ALWAYS_EMIT_R2SAVE
10541 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10542 + 4 * (PPC_HA (offset) != 0)
10543 + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain)
10544 != PPC_HA (offset))
10545 + 4 * (plt_static_chain != 0)
10546 + 20
6f20ed8a
AM		 10547 + stub_entry->group->stub_sec->output_offset
10548 + stub_entry->group->stub_sec->output_section->vma);
794e51c0
AM		 10549 cmp_branch_off = to - from;
10550 use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26);
10551 }
10552
ac2df442
AM		 10553 if (PPC_HA (offset) != 0)
10554 {
176a0d42
AM		 10555 if (r != NULL)
10556 {
794e51c0
AM		 10557 if (ALWAYS_EMIT_R2SAVE
10558 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10559 r[0].r_offset += 4;
176a0d42 10560 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
3b421ab3 10561 r[1].r_offset = r[0].r_offset + 4;
176a0d42
AM		 10562 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10563 r[1].r_addend = r[0].r_addend;
b9e5796b 10564 if (plt_load_toc)
176a0d42 10565 {
b9e5796b 10566 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
c7131b65 10567 {
b9e5796b
AM		 10568 r[2].r_offset = r[1].r_offset + 4;
10569 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
10570 r[2].r_addend = r[0].r_addend;
10571 }
10572 else
10573 {
10574 r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep;
10575 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10576 r[2].r_addend = r[0].r_addend + 8;
10577 if (plt_static_chain)
10578 {
10579 r[3].r_offset = r[2].r_offset + 4;
10580 r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10581 r[3].r_addend = r[0].r_addend + 16;
10582 }
c7131b65 10583 }
176a0d42
AM		 10584 }
10585 }
794e51c0
AM		 10586 if (ALWAYS_EMIT_R2SAVE
10587 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
a078d95a 10588 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
397998fc
AM		 10589 if (plt_load_toc)
10590 {
10591 bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4;
10592 bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4;
10593 }
10594 else
10595 {
10596 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
10597 bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4;
10598 }
b9e5796b
AM		 10599 if (plt_load_toc
10600 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
ac2df442 10601 {
71a39c98 10602 bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4;
ac2df442
AM		 10603 offset = 0;
10604 }
71a39c98 10605 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
b9e5796b 10606 if (plt_load_toc)
794e51c0 10607 {
b9e5796b
AM		 10608 if (use_fake_dep)
10609 {
10610 bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4;
10611 bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4;
10612 }
10613 bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4;
10614 if (plt_static_chain)
10615 bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4;
794e51c0 10616 }
ac2df442
AM		 10617 }
10618 else
10619 {
176a0d42
AM		 10620 if (r != NULL)
10621 {
794e51c0
AM		 10622 if (ALWAYS_EMIT_R2SAVE
10623 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10624 r[0].r_offset += 4;
176a0d42 10625 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
b9e5796b 10626 if (plt_load_toc)
176a0d42 10627 {
b9e5796b 10628 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
c7131b65 10629 {
b9e5796b
AM		 10630 r[1].r_offset = r[0].r_offset + 4;
10631 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
10632 r[1].r_addend = r[0].r_addend;
10633 }
10634 else
10635 {
10636 r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep;
10637 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10638 r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain;
10639 if (plt_static_chain)
10640 {
10641 r[2].r_offset = r[1].r_offset + 4;
10642 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10643 r[2].r_addend = r[0].r_addend + 8;
10644 }
c7131b65 10645 }
176a0d42
AM		 10646 }
10647 }
794e51c0
AM		 10648 if (ALWAYS_EMIT_R2SAVE
10649 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
a078d95a 10650 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
71a39c98 10651 bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4;
b9e5796b
AM		 10652 if (plt_load_toc
10653 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
ac2df442
AM		 10654 {
10655 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
10656 offset = 0;
10657 }
71a39c98 10658 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
b9e5796b 10659 if (plt_load_toc)
794e51c0 10660 {
b9e5796b
AM		 10661 if (use_fake_dep)
10662 {
10663 bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4;
10664 bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4;
10665 }
10666 if (plt_static_chain)
10667 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
10668 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
794e51c0 10669 }
ac2df442 10670 }
b9e5796b 10671 if (plt_load_toc && plt_thread_safe && !use_fake_dep)
794e51c0
AM		 10672 {
10673 bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4;
10674 bfd_put_32 (obfd, BNECTR_P4, p), p += 4;
22aa0c7e 10675 bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4;
794e51c0
AM		 10676 }
10677 else
10678 bfd_put_32 (obfd, BCTR, p), p += 4;
5d1634d7
AM		 10679 return p;
10680}
10681
a7f2871e
AM		 10682/* Build a special .plt call stub for __tls_get_addr. */
10683
10684#define LD_R11_0R3 0xe9630000
10685#define LD_R12_0R3 0xe9830000
10686#define MR_R0_R3 0x7c601b78
10687#define CMPDI_R11_0 0x2c2b0000
10688#define ADD_R3_R12_R13 0x7c6c6a14
10689#define BEQLR 0x4d820020
10690#define MR_R3_R0 0x7c030378
a7f2871e
AM		 10691#define STD_R11_0R1 0xf9610000
10692#define BCTRL 0x4e800421
10693#define LD_R11_0R1 0xe9610000
a7f2871e
AM		 10694#define MTLR_R11 0x7d6803a6
10695
10696static inline bfd_byte *
794e51c0
AM		 10697build_tls_get_addr_stub (struct ppc_link_hash_table *htab,
10698 struct ppc_stub_hash_entry *stub_entry,
10699 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
a7f2871e 10700{
e7d1c40c 10701 bfd *obfd = htab->params->stub_bfd;
794e51c0 10702
a7f2871e
AM		 10703 bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4;
10704 bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4;
10705 bfd_put_32 (obfd, MR_R0_R3, p), p += 4;
10706 bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4;
10707 bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4;
10708 bfd_put_32 (obfd, BEQLR, p), p += 4;
10709 bfd_put_32 (obfd, MR_R3_R0, p), p += 4;
10710 bfd_put_32 (obfd, MFLR_R11, p), p += 4;
a078d95a 10711 bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4;
a7f2871e
AM		 10712
10713 if (r != NULL)
10714 r[0].r_offset += 9 * 4;
794e51c0 10715 p = build_plt_stub (htab, stub_entry, p, offset, r);
a7f2871e
AM		 10716 bfd_put_32 (obfd, BCTRL, p - 4);
10717
a078d95a 10718 bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4;
bd4d2eaa 10719 bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4;
a7f2871e
AM		 10720 bfd_put_32 (obfd, MTLR_R11, p), p += 4;
10721 bfd_put_32 (obfd, BLR, p), p += 4;
10722
10723 return p;
10724}
10725
176a0d42
AM		 10726static Elf_Internal_Rela *
10727get_relocs (asection *sec, int count)
10728{
10729 Elf_Internal_Rela *relocs;
10730 struct bfd_elf_section_data *elfsec_data;
10731
10732 elfsec_data = elf_section_data (sec);
10733 relocs = elfsec_data->relocs;
10734 if (relocs == NULL)
10735 {
10736 bfd_size_type relsize;
10737 relsize = sec->reloc_count * sizeof (*relocs);
10738 relocs = bfd_alloc (sec->owner, relsize);
10739 if (relocs == NULL)
10740 return NULL;
10741 elfsec_data->relocs = relocs;
d4730f92
BS		 10742 elfsec_data->rela.hdr = bfd_zalloc (sec->owner,
10743 sizeof (Elf_Internal_Shdr));
10744 if (elfsec_data->rela.hdr == NULL)
10745 return NULL;
10746 elfsec_data->rela.hdr->sh_size = (sec->reloc_count
10747 * sizeof (Elf64_External_Rela));
10748 elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela);
176a0d42
AM		 10749 sec->reloc_count = 0;
10750 }
10751 relocs += sec->reloc_count;
10752 sec->reloc_count += count;
10753 return relocs;
10754}
10755
aa374f67 10756static bfd_vma
25f53a85 10757get_r2off (struct bfd_link_info *info,
aa374f67
AM		 10758 struct ppc_stub_hash_entry *stub_entry)
10759{
25f53a85 10760 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6f20ed8a 10761 bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off;
aa374f67
AM		 10762
10763 if (r2off == 0)
10764 {
10765 /* Support linking -R objects. Get the toc pointer from the
10766 opd entry. */
10767 char buf[8];
b9e5796b
AM		 10768 if (!htab->opd_abi)
10769 return r2off;
aa374f67
AM		 10770 asection *opd = stub_entry->h->elf.root.u.def.section;
10771 bfd_vma opd_off = stub_entry->h->elf.root.u.def.value;
10772
10773 if (strcmp (opd->name, ".opd") != 0
10774 || opd->reloc_count != 0)
10775 {
bc30df16 10776 info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"),
25f53a85 10777 stub_entry->h->elf.root.root.string);
aa374f67 10778 bfd_set_error (bfd_error_bad_value);
a7c49797 10779 return (bfd_vma) -1;
aa374f67
AM		 10780 }
10781 if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8))
a7c49797 10782 return (bfd_vma) -1;
aa374f67 10783 r2off = bfd_get_64 (opd->owner, buf);
25f53a85 10784 r2off -= elf_gp (info->output_bfd);
aa374f67 10785 }
6f20ed8a 10786 r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off;
aa374f67
AM		 10787 return r2off;
10788}
10789
b34976b6 10790static bfd_boolean
4ce794b7 10791ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 10792{
721956f4
AM		 10793 struct ppc_stub_hash_entry *stub_entry;
10794 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 10795 struct bfd_link_info *info;
10796 struct ppc_link_hash_table *htab;
721956f4
AM		 10797 bfd_byte *loc;
10798 bfd_byte *p;
ee75fd95 10799 bfd_vma dest, off;
721956f4 10800 int size;
176a0d42 10801 Elf_Internal_Rela *r;
e054468f 10802 asection *plt;
5d1634d7 10803
721956f4
AM		 10804 /* Massage our args to the form they really have. */
10805 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 10806 info = in_arg;
5d1634d7 10807
5d1634d7 10808 htab = ppc_hash_table (info);
4dfe6ac6
NC		 10809 if (htab == NULL)
10810 return FALSE;
5d1634d7 10811
721956f4 10812 /* Make a note of the offset within the stubs for this entry. */
6f20ed8a
AM		 10813 stub_entry->stub_offset = stub_entry->group->stub_sec->size;
10814 loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset;
721956f4 10815
4ce794b7 10816 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 10817 switch (stub_entry->stub_type)
5d1634d7 10818 {
721956f4 10819 case ppc_stub_long_branch:
ad8e1ba5 10820 case ppc_stub_long_branch_r2off:
721956f4 10821 /* Branches are relative. This is where we are going to. */
6911b7dc
AM		 10822 dest = (stub_entry->target_value
10823 + stub_entry->target_section->output_offset
10824 + stub_entry->target_section->output_section->vma);
10825 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
10826 off = dest;
5d1634d7 10827
721956f4
AM		 10828 /* And this is where we are coming from. */
10829 off -= (stub_entry->stub_offset
6f20ed8a
AM		 10830 + stub_entry->group->stub_sec->output_offset
10831 + stub_entry->group->stub_sec->output_section->vma);
e86ce104 10832
ac2df442
AM		 10833 size = 4;
10834 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
ad8e1ba5 10835 {
25f53a85 10836 bfd_vma r2off = get_r2off (info, stub_entry);
ad8e1ba5 10837
a7c49797 10838 if (r2off == (bfd_vma) -1)
aa374f67
AM		 10839 {
10840 htab->stub_error = TRUE;
10841 return FALSE;
10842 }
e7d1c40c 10843 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
ad8e1ba5 10844 loc += 4;
a7c49797 10845 size = 8;
ac2df442
AM		 10846 if (PPC_HA (r2off) != 0)
10847 {
e7d1c40c
AM		 10848 bfd_put_32 (htab->params->stub_bfd,
10849 ADDIS_R2_R2 | PPC_HA (r2off), loc);
ac2df442 10850 loc += 4;
a7c49797
AM		 10851 size += 4;
10852 }
10853 if (PPC_LO (r2off) != 0)
10854 {
10855 bfd_put_32 (htab->params->stub_bfd,
10856 ADDI_R2_R2 | PPC_LO (r2off), loc);
10857 loc += 4;
10858 size += 4;
ac2df442 10859 }
ac2df442 10860 off -= size - 4;
ad8e1ba5 10861 }
e7d1c40c 10862 bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 10863
5c3dead3
AM		 10864 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
10865 {
bc30df16
AM		 10866 info->callbacks->einfo
10867 (_("%P: long branch stub `%s' offset overflow\n"),
10868 stub_entry->root.string);
5c3dead3
AM		 10869 htab->stub_error = TRUE;
10870 return FALSE;
10871 }
ee75fd95
AM		 10872
10873 if (info->emitrelocations)
10874 {
6f20ed8a 10875 r = get_relocs (stub_entry->group->stub_sec, 1);
176a0d42
AM		 10876 if (r == NULL)
10877 return FALSE;
6f20ed8a 10878 r->r_offset = loc - stub_entry->group->stub_sec->contents;
ee75fd95
AM		 10879 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
10880 r->r_addend = dest;
10881 if (stub_entry->h != NULL)
10882 {
10883 struct elf_link_hash_entry **hashes;
10884 unsigned long symndx;
10885 struct ppc_link_hash_entry *h;
10886
e7d1c40c 10887 hashes = elf_sym_hashes (htab->params->stub_bfd);
ee75fd95
AM		 10888 if (hashes == NULL)
10889 {
10890 bfd_size_type hsize;
10891
10892 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
e7d1c40c 10893 hashes = bfd_zalloc (htab->params->stub_bfd, hsize);
ee75fd95
AM		 10894 if (hashes == NULL)
10895 return FALSE;
e7d1c40c 10896 elf_sym_hashes (htab->params->stub_bfd) = hashes;
ee75fd95
AM		 10897 htab->stub_globals = 1;
10898 }
10899 symndx = htab->stub_globals++;
10900 h = stub_entry->h;
10901 hashes[symndx] = &h->elf;
10902 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
10903 if (h->oh != NULL && h->oh->is_func)
b31867b6 10904 h = ppc_follow_link (h->oh);
ee75fd95
AM		 10905 if (h->elf.root.u.def.section != stub_entry->target_section)
10906 /* H is an opd symbol. The addend must be zero. */
10907 r->r_addend = 0;
10908 else
10909 {
10910 off = (h->elf.root.u.def.value
10911 + h->elf.root.u.def.section->output_offset
10912 + h->elf.root.u.def.section->output_section->vma);
10913 r->r_addend -= off;
10914 }
10915 }
10916 }
721956f4 10917 break;
e86ce104 10918
721956f4 10919 case ppc_stub_plt_branch:
ad8e1ba5 10920 case ppc_stub_plt_branch_r2off:
721956f4
AM		 10921 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
10922 stub_entry->root.string + 9,
b34976b6 10923 FALSE, FALSE);
721956f4
AM		 10924 if (br_entry == NULL)
10925 {
8de848d8 10926 info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"),
25f53a85 10927 stub_entry->root.string);
b34976b6
AM		 10928 htab->stub_error = TRUE;
10929 return FALSE;
721956f4
AM		 10930 }
10931
176a0d42
AM		 10932 dest = (stub_entry->target_value
10933 + stub_entry->target_section->output_offset
10934 + stub_entry->target_section->output_section->vma);
6911b7dc
AM		 10935 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
10936 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
721956f4 10937
176a0d42 10938 bfd_put_64 (htab->brlt->owner, dest,
4ce794b7 10939 htab->brlt->contents + br_entry->offset);
721956f4 10940
f94498ff 10941 if (br_entry->iter == htab->stub_iteration)
721956f4 10942 {
f94498ff 10943 br_entry->iter = 0;
84f5d08e 10944
f94498ff 10945 if (htab->relbrlt != NULL)
84f5d08e 10946 {
f94498ff
AM		 10947 /* Create a reloc for the branch lookup table entry. */
10948 Elf_Internal_Rela rela;
10949 bfd_byte *rl;
10950
10951 rela.r_offset = (br_entry->offset
10952 + htab->brlt->output_offset
10953 + htab->brlt->output_section->vma);
10954 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 10955 rela.r_addend = dest;
f94498ff
AM		 10956
10957 rl = htab->relbrlt->contents;
10958 rl += (htab->relbrlt->reloc_count++
10959 * sizeof (Elf64_External_Rela));
10960 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
10961 }
10962 else if (info->emitrelocations)
10963 {
176a0d42
AM		 10964 r = get_relocs (htab->brlt, 1);
10965 if (r == NULL)
10966 return FALSE;
10967 /* brlt, being SEC_LINKER_CREATED does not go through the
10968 normal reloc processing. Symbols and offsets are not
10969 translated from input file to output file form, so
10970 set up the offset per the output file. */
f94498ff
AM		 10971 r->r_offset = (br_entry->offset
10972 + htab->brlt->output_offset
10973 + htab->brlt->output_section->vma);
10974 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 10975 r->r_addend = dest;
84f5d08e 10976 }
84f5d08e 10977 }
721956f4 10978
176a0d42
AM		 10979 dest = (br_entry->offset
10980 + htab->brlt->output_offset
10981 + htab->brlt->output_section->vma);
10982
10983 off = (dest
4ce794b7 10984 - elf_gp (htab->brlt->output_section->owner)
6f20ed8a 10985 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
721956f4 10986
ad8e1ba5 10987 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7 10988 {
25f53a85 10989 info->callbacks->einfo
bc30df16 10990 (_("%P: linkage table error against `%T'\n"),
721956f4 10991 stub_entry->root.string);
5d1634d7 10992 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 10993 htab->stub_error = TRUE;
10994 return FALSE;
5d1634d7 10995 }
41bd81ab 10996
176a0d42
AM		 10997 if (info->emitrelocations)
10998 {
6f20ed8a 10999 r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0));
176a0d42
AM		 11000 if (r == NULL)
11001 return FALSE;
6f20ed8a 11002 r[0].r_offset = loc - stub_entry->group->stub_sec->contents;
7cfbafbc
AM		 11003 if (bfd_big_endian (info->output_bfd))
11004 r[0].r_offset += 2;
00f412ee 11005 if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
176a0d42
AM		 11006 r[0].r_offset += 4;
11007 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
11008 r[0].r_addend = dest;
11009 if (PPC_HA (off) != 0)
11010 {
11011 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
11012 r[1].r_offset = r[0].r_offset + 4;
11013 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
11014 r[1].r_addend = r[0].r_addend;
11015 }
11016 }
11017
00f412ee 11018 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
ad8e1ba5 11019 {
176a0d42 11020 if (PPC_HA (off) != 0)
ac2df442
AM		 11021 {
11022 size = 16;
e7d1c40c 11023 bfd_put_32 (htab->params->stub_bfd,
397998fc 11024 ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 11025 loc += 4;
e7d1c40c 11026 bfd_put_32 (htab->params->stub_bfd,
397998fc 11027 LD_R12_0R12 | PPC_LO (off), loc);
ac2df442
AM		 11028 }
11029 else
11030 {
11031 size = 12;
e7d1c40c
AM		 11032 bfd_put_32 (htab->params->stub_bfd,
11033 LD_R12_0R2 | PPC_LO (off), loc);
ac2df442 11034 }
ad8e1ba5
AM		 11035 }
11036 else
11037 {
25f53a85 11038 bfd_vma r2off = get_r2off (info, stub_entry);
aa374f67 11039
a7c49797 11040 if (r2off == (bfd_vma) -1)
aa374f67
AM		 11041 {
11042 htab->stub_error = TRUE;
11043 return FALSE;
11044 }
ad8e1ba5 11045
e7d1c40c 11046 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
ad8e1ba5 11047 loc += 4;
00f412ee 11048 size = 16;
176a0d42 11049 if (PPC_HA (off) != 0)
ac2df442
AM		 11050 {
11051 size += 4;
e7d1c40c 11052 bfd_put_32 (htab->params->stub_bfd,
397998fc 11053 ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 11054 loc += 4;
e7d1c40c 11055 bfd_put_32 (htab->params->stub_bfd,
397998fc 11056 LD_R12_0R12 | PPC_LO (off), loc);
ac2df442
AM		 11057 }
11058 else
e7d1c40c 11059 bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc);
ac2df442
AM		 11060
11061 if (PPC_HA (r2off) != 0)
11062 {
11063 size += 4;
00f412ee 11064 loc += 4;
e7d1c40c
AM		 11065 bfd_put_32 (htab->params->stub_bfd,
11066 ADDIS_R2_R2 | PPC_HA (r2off), loc);
00f412ee
AM		 11067 }
11068 if (PPC_LO (r2off) != 0)
11069 {
11070 size += 4;
ac2df442 11071 loc += 4;
e7d1c40c
AM		 11072 bfd_put_32 (htab->params->stub_bfd,
11073 ADDI_R2_R2 | PPC_LO (r2off), loc);
ac2df442 11074 }
ad8e1ba5
AM		 11075 }
11076 loc += 4;
e7d1c40c 11077 bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc);
ad8e1ba5 11078 loc += 4;
e7d1c40c 11079 bfd_put_32 (htab->params->stub_bfd, BCTR, loc);
721956f4 11080 break;
5d1634d7 11081
721956f4 11082 case ppc_stub_plt_call:
794e51c0 11083 case ppc_stub_plt_call_r2save:
e054468f 11084 if (stub_entry->h != NULL
b31867b6
AM		 11085 && stub_entry->h->is_func_descriptor
11086 && stub_entry->h->oh != NULL)
c862ae31 11087 {
b31867b6
AM		 11088 struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh);
11089
11090 /* If the old-ABI "dot-symbol" is undefined make it weak so
6f20ed8a 11091 we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */
b31867b6
AM		 11092 if (fh->elf.root.type == bfd_link_hash_undefined)
11093 fh->elf.root.type = bfd_link_hash_undefweak;
9507a174
AM		 11094 /* Stop undo_symbol_twiddle changing it back to undefined. */
11095 fh->was_undefined = 0;
c862ae31
AM		 11096 }
11097
721956f4 11098 /* Now build the stub. */
e054468f 11099 dest = stub_entry->plt_ent->plt.offset & ~1;
176a0d42 11100 if (dest >= (bfd_vma) -2)
721956f4
AM		 11101 abort ();
11102
33e44f2e 11103 plt = htab->elf.splt;
25f23106
AM		 11104 if (!htab->elf.dynamic_sections_created
11105 || stub_entry->h == NULL
11106 || stub_entry->h->elf.dynindx == -1)
33e44f2e 11107 plt = htab->elf.iplt;
e054468f
AM		 11108
11109 dest += plt->output_offset + plt->output_section->vma;
11110
11111 if (stub_entry->h == NULL
11112 && (stub_entry->plt_ent->plt.offset & 1) == 0)
11113 {
11114 Elf_Internal_Rela rela;
11115 bfd_byte *rl;
11116
11117 rela.r_offset = dest;
ee67d69a
AM		 11118 if (htab->opd_abi)
11119 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
11120 else
11121 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
e054468f
AM		 11122 rela.r_addend = (stub_entry->target_value
11123 + stub_entry->target_section->output_offset
11124 + stub_entry->target_section->output_section->vma);
11125
33e44f2e
AM		 11126 rl = (htab->elf.irelplt->contents
11127 + (htab->elf.irelplt->reloc_count++
25f23106
AM		 11128 * sizeof (Elf64_External_Rela)));
11129 bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl);
e054468f
AM		 11130 stub_entry->plt_ent->plt.offset |= 1;
11131 }
176a0d42
AM		 11132
11133 off = (dest
e054468f 11134 - elf_gp (plt->output_section->owner)
6f20ed8a 11135 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
721956f4 11136
ad8e1ba5 11137 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4 11138 {
25f53a85 11139 info->callbacks->einfo
695344c0 11140 /* xgettext:c-format */
bc30df16 11141 (_("%P: linkage table error against `%T'\n"),
e054468f
AM		 11142 stub_entry->h != NULL
11143 ? stub_entry->h->elf.root.root.string
11144 : "<local sym>");
721956f4 11145 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 11146 htab->stub_error = TRUE;
11147 return FALSE;
721956f4
AM		 11148 }
11149
e7d1c40c 11150 if (htab->params->plt_stub_align != 0)
794e51c0
AM		 11151 {
11152 unsigned pad = plt_stub_pad (htab, stub_entry, off);
11153
6f20ed8a
AM		 11154 stub_entry->group->stub_sec->size += pad;
11155 stub_entry->stub_offset = stub_entry->group->stub_sec->size;
794e51c0
AM		 11156 loc += pad;
11157 }
11158
176a0d42
AM		 11159 r = NULL;
11160 if (info->emitrelocations)
11161 {
6f20ed8a 11162 r = get_relocs (stub_entry->group->stub_sec,
3ba720c7
AM		 11163 ((PPC_HA (off) != 0)
11164 + (htab->opd_abi
e7d1c40c 11165 ? 2 + (htab->params->plt_static_chain
3ba720c7
AM		 11166 && PPC_HA (off + 16) == PPC_HA (off))
11167 : 1)));
176a0d42
AM		 11168 if (r == NULL)
11169 return FALSE;
6f20ed8a 11170 r[0].r_offset = loc - stub_entry->group->stub_sec->contents;
7cfbafbc
AM		 11171 if (bfd_big_endian (info->output_bfd))
11172 r[0].r_offset += 2;
176a0d42
AM		 11173 r[0].r_addend = dest;
11174 }
a7f2871e
AM		 11175 if (stub_entry->h != NULL
11176 && (stub_entry->h == htab->tls_get_addr_fd
11177 || stub_entry->h == htab->tls_get_addr)
7c9cf415 11178 && htab->params->tls_get_addr_opt)
794e51c0 11179 p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r);
a7f2871e 11180 else
794e51c0 11181 p = build_plt_stub (htab, stub_entry, loc, off, r);
721956f4
AM		 11182 size = p - loc;
11183 break;
11184
a4b6fadd
AM		 11185 case ppc_stub_save_res:
11186 return TRUE;
11187
721956f4
AM		 11188 default:
11189 BFD_FAIL ();
b34976b6 11190 return FALSE;
721956f4
AM		 11191 }
11192
6f20ed8a 11193 stub_entry->group->stub_sec->size += size;
97b639ba 11194
e7d1c40c 11195 if (htab->params->emit_stub_syms)
97b639ba
AM		 11196 {
11197 struct elf_link_hash_entry *h;
ee75fd95
AM		 11198 size_t len1, len2;
11199 char *name;
11200 const char *const stub_str[] = { "long_branch",
11201 "long_branch_r2off",
11202 "plt_branch",
11203 "plt_branch_r2off",
794e51c0 11204 "plt_call",
ee75fd95
AM		 11205 "plt_call" };
11206
11207 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
11208 len2 = strlen (stub_entry->root.string);
11209 name = bfd_malloc (len1 + len2 + 2);
11210 if (name == NULL)
11211 return FALSE;
11212 memcpy (name, stub_entry->root.string, 9);
11213 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
11214 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
11215 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM		 11216 if (h == NULL)
11217 return FALSE;
11218 if (h->root.type == bfd_link_hash_new)
11219 {
11220 h->root.type = bfd_link_hash_defined;
6f20ed8a 11221 h->root.u.def.section = stub_entry->group->stub_sec;
97b639ba 11222 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM		 11223 h->ref_regular = 1;
11224 h->def_regular = 1;
11225 h->ref_regular_nonweak = 1;
11226 h->forced_local = 1;
11227 h->non_elf = 0;
2ec55de3 11228 h->root.linker_def = 1;
97b639ba
AM		 11229 }
11230 }
11231
b34976b6 11232 return TRUE;
721956f4
AM		 11233}
11234
11235/* As above, but don't actually build the stub. Just bump offset so
11236 we know stub section sizes, and select plt_branch stubs where
11237 long_branch stubs won't do. */
11238
b34976b6 11239static bfd_boolean
4ce794b7 11240ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 11241{
11242 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 11243 struct bfd_link_info *info;
721956f4
AM		 11244 struct ppc_link_hash_table *htab;
11245 bfd_vma off;
11246 int size;
11247
11248 /* Massage our args to the form they really have. */
11249 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 11250 info = in_arg;
11251
11252 htab = ppc_hash_table (info);
4dfe6ac6
NC		 11253 if (htab == NULL)
11254 return FALSE;
721956f4 11255
a4b6fadd
AM		 11256 if (stub_entry->h != NULL
11257 && stub_entry->h->save_res
11258 && stub_entry->h->elf.root.type == bfd_link_hash_defined
11259 && stub_entry->h->elf.root.u.def.section == htab->sfpr)
11260 {
11261 /* Don't make stubs to out-of-line register save/restore
11262 functions. Instead, emit copies of the functions. */
11263 stub_entry->group->needs_save_res = 1;
11264 stub_entry->stub_type = ppc_stub_save_res;
11265 return TRUE;
11266 }
11267
794e51c0
AM		 11268 if (stub_entry->stub_type == ppc_stub_plt_call
11269 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
721956f4 11270 {
e054468f
AM		 11271 asection *plt;
11272 off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1;
58ac9f71 11273 if (off >= (bfd_vma) -2)
411e1bfb 11274 abort ();
33e44f2e 11275 plt = htab->elf.splt;
25f23106
AM		 11276 if (!htab->elf.dynamic_sections_created
11277 || stub_entry->h == NULL
11278 || stub_entry->h->elf.dynindx == -1)
33e44f2e 11279 plt = htab->elf.iplt;
e054468f
AM		 11280 off += (plt->output_offset
11281 + plt->output_section->vma
11282 - elf_gp (plt->output_section->owner)
6f20ed8a 11283 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
721956f4 11284
794e51c0 11285 size = plt_stub_size (htab, stub_entry, off);
e7d1c40c 11286 if (htab->params->plt_stub_align)
794e51c0 11287 size += plt_stub_pad (htab, stub_entry, off);
176a0d42
AM		 11288 if (info->emitrelocations)
11289 {
6f20ed8a 11290 stub_entry->group->stub_sec->reloc_count
b9e5796b
AM		 11291 += ((PPC_HA (off) != 0)
11292 + (htab->opd_abi
e7d1c40c 11293 ? 2 + (htab->params->plt_static_chain
b9e5796b
AM		 11294 && PPC_HA (off + 16) == PPC_HA (off))
11295 : 1));
6f20ed8a 11296 stub_entry->group->stub_sec->flags |= SEC_RELOC;
176a0d42 11297 }
721956f4
AM		 11298 }
11299 else
11300 {
ad8e1ba5
AM		 11301 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
11302 variants. */
ac2df442 11303 bfd_vma r2off = 0;
6911b7dc 11304 bfd_vma local_off = 0;
ac2df442 11305
721956f4
AM		 11306 off = (stub_entry->target_value
11307 + stub_entry->target_section->output_offset
11308 + stub_entry->target_section->output_section->vma);
6f20ed8a
AM		 11309 off -= (stub_entry->group->stub_sec->size
11310 + stub_entry->group->stub_sec->output_offset
11311 + stub_entry->group->stub_sec->output_section->vma);
721956f4 11312
ad8e1ba5
AM		 11313 /* Reset the stub type from the plt variant in case we now
11314 can reach with a shorter stub. */
11315 if (stub_entry->stub_type >= ppc_stub_plt_branch)
11316 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
11317
11318 size = 4;
11319 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
11320 {
25f53a85 11321 r2off = get_r2off (info, stub_entry);
a7c49797 11322 if (r2off == (bfd_vma) -1)
aa374f67
AM		 11323 {
11324 htab->stub_error = TRUE;
11325 return FALSE;
11326 }
a7c49797 11327 size = 8;
ac2df442 11328 if (PPC_HA (r2off) != 0)
a7c49797
AM		 11329 size += 4;
11330 if (PPC_LO (r2off) != 0)
11331 size += 4;
ac2df442 11332 off -= size - 4;
ad8e1ba5
AM		 11333 }
11334
6911b7dc
AM		 11335 local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
11336
b9e5796b
AM		 11337 /* If the branch offset if too big, use a ppc_stub_plt_branch.
11338 Do the same for -R objects without function descriptors. */
11339 if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off
11340 || (stub_entry->stub_type == ppc_stub_long_branch_r2off
a7c49797
AM		 11341 && r2off == 0
11342 && htab->sec_info[stub_entry->target_section->id].toc_off == 0))
721956f4
AM		 11343 {
11344 struct ppc_branch_hash_entry *br_entry;
11345
11346 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
11347 stub_entry->root.string + 9,
b34976b6 11348 TRUE, FALSE);
721956f4
AM		 11349 if (br_entry == NULL)
11350 {
8de848d8 11351 info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"),
25f53a85 11352 stub_entry->root.string);
b34976b6
AM		 11353 htab->stub_error = TRUE;
11354 return FALSE;
721956f4
AM		 11355 }
11356
11357 if (br_entry->iter != htab->stub_iteration)
11358 {
11359 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 11360 br_entry->offset = htab->brlt->size;
11361 htab->brlt->size += 8;
63bc6f6c 11362
ee75fd95 11363 if (htab->relbrlt != NULL)
eea6121a 11364 htab->relbrlt->size += sizeof (Elf64_External_Rela);
84f5d08e
AM		 11365 else if (info->emitrelocations)
11366 {
11367 htab->brlt->reloc_count += 1;
11368 htab->brlt->flags |= SEC_RELOC;
11369 }
721956f4 11370 }
ad8e1ba5
AM		 11371
11372 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
ac2df442
AM		 11373 off = (br_entry->offset
11374 + htab->brlt->output_offset
11375 + htab->brlt->output_section->vma
11376 - elf_gp (htab->brlt->output_section->owner)
6f20ed8a 11377 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
ac2df442 11378
176a0d42
AM		 11379 if (info->emitrelocations)
11380 {
6f20ed8a
AM		 11381 stub_entry->group->stub_sec->reloc_count
11382 += 1 + (PPC_HA (off) != 0);
11383 stub_entry->group->stub_sec->flags |= SEC_RELOC;
176a0d42
AM		 11384 }
11385
00f412ee 11386 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
ac2df442
AM		 11387 {
11388 size = 12;
176a0d42 11389 if (PPC_HA (off) != 0)
ac2df442
AM		 11390 size = 16;
11391 }
11392 else
11393 {
00f412ee 11394 size = 16;
176a0d42 11395 if (PPC_HA (off) != 0)
ac2df442
AM		 11396 size += 4;
11397
11398 if (PPC_HA (r2off) != 0)
11399 size += 4;
00f412ee
AM		 11400 if (PPC_LO (r2off) != 0)
11401 size += 4;
ac2df442 11402 }
721956f4 11403 }
84f5d08e
AM		 11404 else if (info->emitrelocations)
11405 {
6f20ed8a
AM		 11406 stub_entry->group->stub_sec->reloc_count += 1;
11407 stub_entry->group->stub_sec->flags |= SEC_RELOC;
84f5d08e 11408 }
721956f4
AM		 11409 }
11410
6f20ed8a 11411 stub_entry->group->stub_sec->size += size;
b34976b6 11412 return TRUE;
721956f4
AM		 11413}
11414
11415/* Set up various things so that we can make a list of input sections
11416 for each output section included in the link. Returns -1 on error,
cedb70c5 11417 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 11418
11419int
e7d1c40c 11420ppc64_elf_setup_section_lists (struct bfd_link_info *info)
721956f4 11421{
6f20ed8a 11422 unsigned int id;
721956f4
AM		 11423 bfd_size_type amt;
11424 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11425
4dfe6ac6
NC		 11426 if (htab == NULL)
11427 return -1;
4c52953f 11428
6f20ed8a
AM		 11429 htab->sec_info_arr_size = bfd_get_next_section_id ();
11430 amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size);
11431 htab->sec_info = bfd_zmalloc (amt);
11432 if (htab->sec_info == NULL)
721956f4
AM		 11433 return -1;
11434
3d6f9012
AM		 11435 /* Set toc_off for com, und, abs and ind sections. */
11436 for (id = 0; id < 3; id++)
6f20ed8a 11437 htab->sec_info[id].toc_off = TOC_BASE_OFF;
734b6cf9 11438
721956f4
AM		 11439 return 1;
11440}
11441
927be08e
AM		 11442/* Set up for first pass at multitoc partitioning. */
11443
11444void
11445ppc64_elf_start_multitoc_partition (struct bfd_link_info *info)
11446{
11447 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11448
1c865ab2 11449 htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd);
927be08e
AM		 11450 htab->toc_bfd = NULL;
11451 htab->toc_first_sec = NULL;
11452}
11453
e717da7e
AM		 11454/* The linker repeatedly calls this function for each TOC input section
11455 and linker generated GOT section. Group input bfds such that the toc
927be08e 11456 within a group is less than 64k in size. */
ad8e1ba5 11457
927be08e 11458bfd_boolean
4ce794b7 11459ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 11460{
11461 struct ppc_link_hash_table *htab = ppc_hash_table (info);
d77c8a4b 11462 bfd_vma addr, off, limit;
ad8e1ba5 11463
4dfe6ac6
NC		 11464 if (htab == NULL)
11465 return FALSE;
11466
927be08e 11467 if (!htab->second_toc_pass)
4c52953f 11468 {
927be08e 11469 /* Keep track of the first .toc or .got section for this input bfd. */
a4fd3de5
AM		 11470 bfd_boolean new_bfd = htab->toc_bfd != isec->owner;
11471
11472 if (new_bfd)
bf102f86
AM		 11473 {
11474 htab->toc_bfd = isec->owner;
11475 htab->toc_first_sec = isec;
11476 }
927be08e 11477
bf102f86
AM		 11478 addr = isec->output_offset + isec->output_section->vma;
11479 off = addr - htab->toc_curr;
d77c8a4b
AM		 11480 limit = 0x80008000;
11481 if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc)
11482 limit = 0x10000;
11483 if (off + isec->size > limit)
bf102f86
AM		 11484 {
11485 addr = (htab->toc_first_sec->output_offset
11486 + htab->toc_first_sec->output_section->vma);
11487 htab->toc_curr = addr;
a27e685f 11488 htab->toc_curr &= -TOC_BASE_ALIGN;
bf102f86 11489 }
99877b66 11490
927be08e
AM		 11491 /* toc_curr is the base address of this toc group. Set elf_gp
11492 for the input section to be the offset relative to the
11493 output toc base plus 0x8000. Making the input elf_gp an
11494 offset allows us to move the toc as a whole without
11495 recalculating input elf_gp. */
11496 off = htab->toc_curr - elf_gp (isec->output_section->owner);
11497 off += TOC_BASE_OFF;
11498
11499 /* Die if someone uses a linker script that doesn't keep input
11500 file .toc and .got together. */
a4fd3de5
AM		 11501 if (new_bfd
11502 && elf_gp (isec->owner) != 0
927be08e
AM		 11503 && elf_gp (isec->owner) != off)
11504 return FALSE;
11505
11506 elf_gp (isec->owner) = off;
11507 return TRUE;
4c52953f 11508 }
927be08e
AM		 11509
11510 /* During the second pass toc_first_sec points to the start of
11511 a toc group, and toc_curr is used to track the old elf_gp.
11512 We use toc_bfd to ensure we only look at each bfd once. */
11513 if (htab->toc_bfd == isec->owner)
11514 return TRUE;
11515 htab->toc_bfd = isec->owner;
11516
11517 if (htab->toc_first_sec == NULL
11518 || htab->toc_curr != elf_gp (isec->owner))
11519 {
11520 htab->toc_curr = elf_gp (isec->owner);
11521 htab->toc_first_sec = isec;
11522 }
11523 addr = (htab->toc_first_sec->output_offset
11524 + htab->toc_first_sec->output_section->vma);
11525 off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF;
11526 elf_gp (isec->owner) = off;
11527
11528 return TRUE;
ad8e1ba5
AM		 11529}
11530
927be08e
AM		 11531/* Called via elf_link_hash_traverse to merge GOT entries for global
11532 symbol H. */
11533
11534static bfd_boolean
11535merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
11536{
11537 if (h->root.type == bfd_link_hash_indirect)
11538 return TRUE;
11539
927be08e
AM		 11540 merge_got_entries (&h->got.glist);
11541
11542 return TRUE;
11543}
11544
11545/* Called via elf_link_hash_traverse to allocate GOT entries for global
11546 symbol H. */
11547
11548static bfd_boolean
11549reallocate_got (struct elf_link_hash_entry *h, void *inf)
11550{
11551 struct got_entry *gent;
11552
11553 if (h->root.type == bfd_link_hash_indirect)
11554 return TRUE;
11555
927be08e
AM		 11556 for (gent = h->got.glist; gent != NULL; gent = gent->next)
11557 if (!gent->is_indirect)
11558 allocate_got (h, (struct bfd_link_info *) inf, gent);
11559 return TRUE;
11560}
11561
11562/* Called on the first multitoc pass after the last call to
11563 ppc64_elf_next_toc_section. This function removes duplicate GOT
11564 entries. */
11565
11566bfd_boolean
11567ppc64_elf_layout_multitoc (struct bfd_link_info *info)
ad8e1ba5
AM		 11568{
11569 struct ppc_link_hash_table *htab = ppc_hash_table (info);
927be08e
AM		 11570 struct bfd *ibfd, *ibfd2;
11571 bfd_boolean done_something;
11572
11573 htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd);
ad8e1ba5 11574
7865406b
AM		 11575 if (!htab->do_multi_toc)
11576 return FALSE;
11577
d0fae19d 11578 /* Merge global sym got entries within a toc group. */
927be08e
AM		 11579 elf_link_hash_traverse (&htab->elf, merge_global_got, info);
11580
11581 /* And tlsld_got. */
c72f2fb2 11582 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11583 {
11584 struct got_entry *ent, *ent2;
11585
11586 if (!is_ppc64_elf (ibfd))
11587 continue;
11588
11589 ent = ppc64_tlsld_got (ibfd);
11590 if (!ent->is_indirect
11591 && ent->got.offset != (bfd_vma) -1)
11592 {
c72f2fb2 11593 for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next)
927be08e
AM		 11594 {
11595 if (!is_ppc64_elf (ibfd2))
11596 continue;
11597
11598 ent2 = ppc64_tlsld_got (ibfd2);
11599 if (!ent2->is_indirect
11600 && ent2->got.offset != (bfd_vma) -1
11601 && elf_gp (ibfd2) == elf_gp (ibfd))
11602 {
11603 ent2->is_indirect = TRUE;
11604 ent2->got.ent = ent;
11605 }
11606 }
11607 }
11608 }
11609
11610 /* Zap sizes of got sections. */
33e44f2e
AM		 11611 htab->elf.irelplt->rawsize = htab->elf.irelplt->size;
11612 htab->elf.irelplt->size -= htab->got_reli_size;
927be08e
AM		 11613 htab->got_reli_size = 0;
11614
c72f2fb2 11615 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11616 {
11617 asection *got, *relgot;
11618
11619 if (!is_ppc64_elf (ibfd))
11620 continue;
11621
11622 got = ppc64_elf_tdata (ibfd)->got;
11623 if (got != NULL)
11624 {
11625 got->rawsize = got->size;
11626 got->size = 0;
11627 relgot = ppc64_elf_tdata (ibfd)->relgot;
11628 relgot->rawsize = relgot->size;
11629 relgot->size = 0;
11630 }
11631 }
11632
11633 /* Now reallocate the got, local syms first. We don't need to
11634 allocate section contents again since we never increase size. */
c72f2fb2 11635 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11636 {
11637 struct got_entry **lgot_ents;
11638 struct got_entry **end_lgot_ents;
11639 struct plt_entry **local_plt;
11640 struct plt_entry **end_local_plt;
f961d9dd 11641 unsigned char *lgot_masks;
927be08e
AM		 11642 bfd_size_type locsymcount;
11643 Elf_Internal_Shdr *symtab_hdr;
19e08130 11644 asection *s;
927be08e
AM		 11645
11646 if (!is_ppc64_elf (ibfd))
11647 continue;
11648
11649 lgot_ents = elf_local_got_ents (ibfd);
11650 if (!lgot_ents)
11651 continue;
11652
11653 symtab_hdr = &elf_symtab_hdr (ibfd);
11654 locsymcount = symtab_hdr->sh_info;
11655 end_lgot_ents = lgot_ents + locsymcount;
11656 local_plt = (struct plt_entry **) end_lgot_ents;
11657 end_local_plt = local_plt + locsymcount;
f961d9dd 11658 lgot_masks = (unsigned char *) end_local_plt;
927be08e 11659 s = ppc64_elf_tdata (ibfd)->got;
927be08e
AM		 11660 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
11661 {
11662 struct got_entry *ent;
11663
11664 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
d0fae19d 11665 {
19e08130
AM		 11666 unsigned int ent_size = 8;
11667 unsigned int rel_size = sizeof (Elf64_External_Rela);
11668
d0fae19d
AM		 11669 ent->got.offset = s->size;
11670 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
d0fae19d 11671 {
19e08130
AM		 11672 ent_size *= 2;
11673 rel_size *= 2;
11674 }
11675 s->size += ent_size;
11676 if ((*lgot_masks & PLT_IFUNC) != 0)
11677 {
33e44f2e 11678 htab->elf.irelplt->size += rel_size;
19e08130
AM		 11679 htab->got_reli_size += rel_size;
11680 }
0e1862bb 11681 else if (bfd_link_pic (info))
19e08130
AM		 11682 {
11683 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11684 srel->size += rel_size;
d0fae19d
AM		 11685 }
11686 }
927be08e
AM		 11687 }
11688 }
11689
11690 elf_link_hash_traverse (&htab->elf, reallocate_got, info);
11691
c72f2fb2 11692 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11693 {
11694 struct got_entry *ent;
11695
11696 if (!is_ppc64_elf (ibfd))
11697 continue;
11698
11699 ent = ppc64_tlsld_got (ibfd);
11700 if (!ent->is_indirect
11701 && ent->got.offset != (bfd_vma) -1)
11702 {
11703 asection *s = ppc64_elf_tdata (ibfd)->got;
11704 ent->got.offset = s->size;
11705 s->size += 16;
0e1862bb 11706 if (bfd_link_pic (info))
927be08e
AM		 11707 {
11708 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11709 srel->size += sizeof (Elf64_External_Rela);
11710 }
11711 }
11712 }
11713
33e44f2e 11714 done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size;
927be08e 11715 if (!done_something)
c72f2fb2 11716 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11717 {
11718 asection *got;
11719
11720 if (!is_ppc64_elf (ibfd))
11721 continue;
11722
11723 got = ppc64_elf_tdata (ibfd)->got;
11724 if (got != NULL)
11725 {
11726 done_something = got->rawsize != got->size;
11727 if (done_something)
11728 break;
11729 }
11730 }
11731
11732 if (done_something)
e7d1c40c 11733 (*htab->params->layout_sections_again) ();
927be08e
AM		 11734
11735 /* Set up for second pass over toc sections to recalculate elf_gp
11736 on input sections. */
11737 htab->toc_bfd = NULL;
11738 htab->toc_first_sec = NULL;
11739 htab->second_toc_pass = TRUE;
11740 return done_something;
11741}
11742
11743/* Called after second pass of multitoc partitioning. */
11744
11745void
11746ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info)
11747{
11748 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11749
11750 /* After the second pass, toc_curr tracks the TOC offset used
11751 for code sections below in ppc64_elf_next_input_section. */
3d6f9012 11752 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 11753}
11754
9b5ecbd0
AM		 11755/* No toc references were found in ISEC. If the code in ISEC makes no
11756 calls, then there's no need to use toc adjusting stubs when branching
11757 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM		 11758 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
11759 needed, and 2 if a cyclical call-graph was found but no other reason
11760 for a stub was detected. If called from the top level, a return of
11761 2 means the same as a return of 0. */
9b5ecbd0
AM		 11762
11763static int
4ce794b7 11764toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 11765{
9b5ecbd0 11766 int ret;
70cc837d
AM		 11767
11768 /* Mark this section as checked. */
11769 isec->call_check_done = 1;
9b5ecbd0 11770
772119ce
AM		 11771 /* We know none of our code bearing sections will need toc stubs. */
11772 if ((isec->flags & SEC_LINKER_CREATED) != 0)
11773 return 0;
11774
eea6121a 11775 if (isec->size == 0)
082c50f8
AM		 11776 return 0;
11777
4c52953f
AM		 11778 if (isec->output_section == NULL)
11779 return 0;
11780
4c52953f 11781 ret = 0;
70cc837d 11782 if (isec->reloc_count != 0)
9b5ecbd0 11783 {
70cc837d
AM		 11784 Elf_Internal_Rela *relstart, *rel;
11785 Elf_Internal_Sym *local_syms;
11786 struct ppc_link_hash_table *htab;
2917689a 11787
70cc837d
AM		 11788 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
11789 info->keep_memory);
11790 if (relstart == NULL)
11791 return -1;
90aecf7a 11792
70cc837d
AM		 11793 /* Look for branches to outside of this section. */
11794 local_syms = NULL;
11795 htab = ppc_hash_table (info);
11796 if (htab == NULL)
11797 return -1;
4c52953f 11798
70cc837d 11799 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
4c52953f 11800 {
70cc837d
AM		 11801 enum elf_ppc64_reloc_type r_type;
11802 unsigned long r_symndx;
11803 struct elf_link_hash_entry *h;
11804 struct ppc_link_hash_entry *eh;
11805 Elf_Internal_Sym *sym;
11806 asection *sym_sec;
11807 struct _opd_sec_data *opd;
11808 bfd_vma sym_value;
11809 bfd_vma dest;
11810
11811 r_type = ELF64_R_TYPE (rel->r_info);
11812 if (r_type != R_PPC64_REL24
11813 && r_type != R_PPC64_REL14
11814 && r_type != R_PPC64_REL14_BRTAKEN
11815 && r_type != R_PPC64_REL14_BRNTAKEN)
11816 continue;
4c52953f 11817
70cc837d
AM		 11818 r_symndx = ELF64_R_SYM (rel->r_info);
11819 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
11820 isec->owner))
4c52953f 11821 {
70cc837d
AM		 11822 ret = -1;
11823 break;
11824 }
4c52953f 11825
70cc837d
AM		 11826 /* Calls to dynamic lib functions go through a plt call stub
11827 that uses r2. */
11828 eh = (struct ppc_link_hash_entry *) h;
11829 if (eh != NULL
11830 && (eh->elf.plt.plist != NULL
11831 || (eh->oh != NULL
11832 && ppc_follow_link (eh->oh)->elf.plt.plist != NULL)))
11833 {
11834 ret = 1;
11835 break;
4c52953f
AM		 11836 }
11837
70cc837d
AM		 11838 if (sym_sec == NULL)
11839 /* Ignore other undefined symbols. */
4c52953f 11840 continue;
4c52953f 11841
70cc837d
AM		 11842 /* Assume branches to other sections not included in the
11843 link need stubs too, to cover -R and absolute syms. */
11844 if (sym_sec->output_section == NULL)
11845 {
11846 ret = 1;
11847 break;
11848 }
4c52953f 11849
70cc837d
AM		 11850 if (h == NULL)
11851 sym_value = sym->st_value;
11852 else
11853 {
11854 if (h->root.type != bfd_link_hash_defined
11855 && h->root.type != bfd_link_hash_defweak)
11856 abort ();
11857 sym_value = h->root.u.def.value;
11858 }
11859 sym_value += rel->r_addend;
4c52953f 11860
70cc837d
AM		 11861 /* If this branch reloc uses an opd sym, find the code section. */
11862 opd = get_opd_info (sym_sec);
11863 if (opd != NULL)
11864 {
11865 if (h == NULL && opd->adjust != NULL)
11866 {
11867 long adjust;
4c52953f 11868
92a9c616 11869 adjust = opd->adjust[OPD_NDX (sym_value)];
70cc837d
AM		 11870 if (adjust == -1)
11871 /* Assume deleted functions won't ever be called. */
11872 continue;
11873 sym_value += adjust;
11874 }
4c52953f 11875
aef36ac1
AM		 11876 dest = opd_entry_value (sym_sec, sym_value,
11877 &sym_sec, NULL, FALSE);
70cc837d
AM		 11878 if (dest == (bfd_vma) -1)
11879 continue;
11880 }
11881 else
11882 dest = (sym_value
11883 + sym_sec->output_offset
11884 + sym_sec->output_section->vma);
4c52953f 11885
70cc837d
AM		 11886 /* Ignore branch to self. */
11887 if (sym_sec == isec)
11888 continue;
4c52953f 11889
70cc837d
AM		 11890 /* If the called function uses the toc, we need a stub. */
11891 if (sym_sec->has_toc_reloc
11892 || sym_sec->makes_toc_func_call)
4c52953f 11893 {
70cc837d 11894 ret = 1;
4c52953f
AM		 11895 break;
11896 }
70cc837d
AM		 11897
11898 /* Assume any branch that needs a long branch stub might in fact
11899 need a plt_branch stub. A plt_branch stub uses r2. */
11900 else if (dest - (isec->output_offset
11901 + isec->output_section->vma
6911b7dc
AM		 11902 + rel->r_offset) + (1 << 25)
11903 >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h
11904 ? h->other
11905 : sym->st_other))
4c52953f 11906 {
70cc837d
AM		 11907 ret = 1;
11908 break;
11909 }
11910
11911 /* If calling back to a section in the process of being
11912 tested, we can't say for sure that no toc adjusting stubs
11913 are needed, so don't return zero. */
11914 else if (sym_sec->call_check_in_progress)
11915 ret = 2;
11916
11917 /* Branches to another section that itself doesn't have any TOC
11918 references are OK. Recursively call ourselves to check. */
11919 else if (!sym_sec->call_check_done)
11920 {
11921 int recur;
11922
11923 /* Mark current section as indeterminate, so that other
11924 sections that call back to current won't be marked as
11925 known. */
11926 isec->call_check_in_progress = 1;
11927 recur = toc_adjusting_stub_needed (info, sym_sec);
11928 isec->call_check_in_progress = 0;
11929
4c52953f
AM		 11930 if (recur != 0)
11931 {
70cc837d
AM		 11932 ret = recur;
11933 if (recur != 2)
11934 break;
4c52953f
AM		 11935 }
11936 }
4c52953f 11937 }
70cc837d
AM		 11938
11939 if (local_syms != NULL
11940 && (elf_symtab_hdr (isec->owner).contents
11941 != (unsigned char *) local_syms))
11942 free (local_syms);
11943 if (elf_section_data (isec)->relocs != relstart)
11944 free (relstart);
9b5ecbd0
AM		 11945 }
11946
70cc837d
AM		 11947 if ((ret & 1) == 0
11948 && isec->map_head.s != NULL
11949 && (strcmp (isec->output_section->name, ".init") == 0
11950 || strcmp (isec->output_section->name, ".fini") == 0))
11951 {
11952 if (isec->map_head.s->has_toc_reloc
11953 || isec->map_head.s->makes_toc_func_call)
11954 ret = 1;
11955 else if (!isec->map_head.s->call_check_done)
11956 {
11957 int recur;
11958 isec->call_check_in_progress = 1;
11959 recur = toc_adjusting_stub_needed (info, isec->map_head.s);
11960 isec->call_check_in_progress = 0;
11961 if (recur != 0)
11962 ret = recur;
11963 }
11964 }
11965
11966 if (ret == 1)
11967 isec->makes_toc_func_call = 1;
4c52953f 11968
9b5ecbd0
AM		 11969 return ret;
11970}
11971
721956f4
AM		 11972/* The linker repeatedly calls this function for each input section,
11973 in the order that input sections are linked into output sections.
11974 Build lists of input sections to determine groupings between which
11975 we may insert linker stubs. */
11976
9b5ecbd0 11977bfd_boolean
4ce794b7 11978ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 11979{
11980 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11981
4dfe6ac6
NC		 11982 if (htab == NULL)
11983 return FALSE;
11984
734b6cf9 11985 if ((isec->output_section->flags & SEC_CODE) != 0
6f20ed8a 11986 && isec->output_section->id < htab->sec_info_arr_size)
721956f4 11987 {
3d6f9012
AM		 11988 /* This happens to make the list in reverse order,
11989 which is what we want. */
6f20ed8a
AM		 11990 htab->sec_info[isec->id].u.list
11991 = htab->sec_info[isec->output_section->id].u.list;
11992 htab->sec_info[isec->output_section->id].u.list = isec;
721956f4 11993 }
ad8e1ba5 11994
4c52953f 11995 if (htab->multi_toc_needed)
9b5ecbd0 11996 {
8b974ba3
AM		 11997 /* Analyse sections that aren't already flagged as needing a
11998 valid toc pointer. Exclude .fixup for the linux kernel.
11999 .fixup contains branches, but only back to the function that
12000 hit an exception. */
12001 if (!(isec->has_toc_reloc
12002 || (isec->flags & SEC_CODE) == 0
12003 || strcmp (isec->name, ".fixup") == 0
12004 || isec->call_check_done))
12005 {
12006 if (toc_adjusting_stub_needed (info, isec) < 0)
6683a28d 12007 return FALSE;
8b974ba3
AM		 12008 }
12009 /* Make all sections use the TOC assigned for this object file.
12010 This will be wrong for pasted sections; We fix that in
12011 check_pasted_section(). */
12012 if (elf_gp (isec->owner) != 0)
12013 htab->toc_curr = elf_gp (isec->owner);
12014 }
12015
6f20ed8a 12016 htab->sec_info[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 12017 return TRUE;
721956f4
AM		 12018}
12019
70cc837d
AM		 12020/* Check that all .init and .fini sections use the same toc, if they
12021 have toc relocs. */
12022
12023static bfd_boolean
12024check_pasted_section (struct bfd_link_info *info, const char *name)
12025{
12026 asection *o = bfd_get_section_by_name (info->output_bfd, name);
12027
12028 if (o != NULL)
12029 {
12030 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12031 bfd_vma toc_off = 0;
12032 asection *i;
12033
12034 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
12035 if (i->has_toc_reloc)
12036 {
12037 if (toc_off == 0)
6f20ed8a
AM		 12038 toc_off = htab->sec_info[i->id].toc_off;
12039 else if (toc_off != htab->sec_info[i->id].toc_off)
70cc837d
AM		 12040 return FALSE;
12041 }
6683a28d
AM		 12042
12043 if (toc_off == 0)
12044 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
12045 if (i->makes_toc_func_call)
12046 {
6f20ed8a 12047 toc_off = htab->sec_info[i->id].toc_off;
6683a28d
AM		 12048 break;
12049 }
12050
70cc837d
AM		 12051 /* Make sure the whole pasted function uses the same toc offset. */
12052 if (toc_off != 0)
12053 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
6f20ed8a 12054 htab->sec_info[i->id].toc_off = toc_off;
70cc837d
AM		 12055 }
12056 return TRUE;
12057}
12058
12059bfd_boolean
12060ppc64_elf_check_init_fini (struct bfd_link_info *info)
12061{
12062 return (check_pasted_section (info, ".init")
12063 & check_pasted_section (info, ".fini"));
12064}
12065
721956f4
AM		 12066/* See whether we can group stub sections together. Grouping stub
12067 sections may result in fewer stubs. More importantly, we need to
12068 put all .init* and .fini* stubs at the beginning of the .init or
12069 .fini output sections respectively, because glibc splits the
12070 _init and _fini functions into multiple parts. Putting a stub in
12071 the middle of a function is not a good idea. */
12072
6f20ed8a
AM		 12073static bfd_boolean
12074group_sections (struct bfd_link_info *info,
4ce794b7
AM		 12075 bfd_size_type stub_group_size,
12076 bfd_boolean stubs_always_before_branch)
721956f4 12077{
6f20ed8a
AM		 12078 struct ppc_link_hash_table *htab;
12079 asection *osec;
7c8fe5c4
AM		 12080 bfd_boolean suppress_size_errors;
12081
6f20ed8a
AM		 12082 htab = ppc_hash_table (info);
12083 if (htab == NULL)
12084 return FALSE;
12085
7c8fe5c4 12086 suppress_size_errors = FALSE;
7c8fe5c4
AM		 12087 if (stub_group_size == 1)
12088 {
12089 /* Default values. */
12090 if (stubs_always_before_branch)
09f92717 12091 stub_group_size = 0x1e00000;
7c8fe5c4 12092 else
09f92717 12093 stub_group_size = 0x1c00000;
7c8fe5c4
AM		 12094 suppress_size_errors = TRUE;
12095 }
12096
6f20ed8a 12097 for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next)
721956f4 12098 {
6f20ed8a
AM		 12099 asection *tail;
12100
12101 if (osec->id >= htab->sec_info_arr_size)
12102 continue;
12103
12104 tail = htab->sec_info[osec->id].u.list;
734b6cf9 12105 while (tail != NULL)
721956f4 12106 {
734b6cf9
AM		 12107 asection *curr;
12108 asection *prev;
12109 bfd_size_type total;
12110 bfd_boolean big_sec;
12111 bfd_vma curr_toc;
6f20ed8a 12112 struct map_stub *group;
09f92717 12113 bfd_size_type group_size;
734b6cf9
AM		 12114
12115 curr = tail;
eea6121a 12116 total = tail->size;
09f92717
AM		 12117 group_size = (ppc64_elf_section_data (tail) != NULL
12118 && ppc64_elf_section_data (tail)->has_14bit_branch
12119 ? stub_group_size >> 10 : stub_group_size);
12120
12121 big_sec = total > group_size;
7c8fe5c4 12122 if (big_sec && !suppress_size_errors)
695344c0 12123 /* xgettext:c-format */
4eca0228
AM		 12124 _bfd_error_handler (_("%B section %A exceeds stub group size"),
12125 tail->owner, tail);
6f20ed8a 12126 curr_toc = htab->sec_info[tail->id].toc_off;
734b6cf9 12127
6f20ed8a 12128 while ((prev = htab->sec_info[curr->id].u.list) != NULL
734b6cf9 12129 && ((total += curr->output_offset - prev->output_offset)
6bee8834
AM		 12130 < (ppc64_elf_section_data (prev) != NULL
12131 && ppc64_elf_section_data (prev)->has_14bit_branch
09f92717 12132 ? (group_size = stub_group_size >> 10) : group_size))
6f20ed8a 12133 && htab->sec_info[prev->id].toc_off == curr_toc)
734b6cf9
AM		 12134 curr = prev;
12135
12136 /* OK, the size from the start of CURR to the end is less
09f92717 12137 than group_size and thus can be handled by one stub
734b6cf9 12138 section. (or the tail section is itself larger than
09f92717
AM		 12139 group_size, in which case we may be toast.) We should
12140 really be keeping track of the total size of stubs added
12141 here, as stubs contribute to the final output section
12142 size. That's a little tricky, and this way will only
12143 break if stubs added make the total size more than 2^25,
12144 ie. for the default stub_group_size, if stubs total more
12145 than 2097152 bytes, or nearly 75000 plt call stubs. */
6f20ed8a
AM		 12146 group = bfd_alloc (curr->owner, sizeof (*group));
12147 if (group == NULL)
12148 return FALSE;
12149 group->link_sec = curr;
12150 group->stub_sec = NULL;
a4b6fadd
AM		 12151 group->needs_save_res = 0;
12152 group->next = htab->group;
12153 htab->group = group;
734b6cf9 12154 do
721956f4 12155 {
6f20ed8a 12156 prev = htab->sec_info[tail->id].u.list;
734b6cf9 12157 /* Set up this stub group. */
6f20ed8a 12158 htab->sec_info[tail->id].u.group = group;
721956f4 12159 }
734b6cf9
AM		 12160 while (tail != curr && (tail = prev) != NULL);
12161
09f92717 12162 /* But wait, there's more! Input sections up to group_size
734b6cf9
AM		 12163 bytes before the stub section can be handled by it too.
12164 Don't do this if we have a really large section after the
12165 stubs, as adding more stubs increases the chance that
12166 branches may not reach into the stub section. */
12167 if (!stubs_always_before_branch && !big_sec)
12168 {
12169 total = 0;
12170 while (prev != NULL
12171 && ((total += tail->output_offset - prev->output_offset)
6bee8834
AM		 12172 < (ppc64_elf_section_data (prev) != NULL
12173 && ppc64_elf_section_data (prev)->has_14bit_branch
09f92717 12174 ? (group_size = stub_group_size >> 10) : group_size))
6f20ed8a 12175 && htab->sec_info[prev->id].toc_off == curr_toc)
734b6cf9
AM		 12176 {
12177 tail = prev;
6f20ed8a
AM		 12178 prev = htab->sec_info[tail->id].u.list;
12179 htab->sec_info[tail->id].u.group = group;
734b6cf9
AM		 12180 }
12181 }
12182 tail = prev;
721956f4
AM		 12183 }
12184 }
6f20ed8a 12185 return TRUE;
721956f4
AM		 12186}
12187
58d180e8
AM		 12188static const unsigned char glink_eh_frame_cie[] =
12189{
12190 0, 0, 0, 16, /* length. */
12191 0, 0, 0, 0, /* id. */
12192 1, /* CIE version. */
12193 'z', 'R', 0, /* Augmentation string. */
12194 4, /* Code alignment. */
12195 0x78, /* Data alignment. */
12196 65, /* RA reg. */
12197 1, /* Augmentation size. */
12198 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
da44f4e5
AM		 12199 DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */
12200 0, 0, 0, 0
58d180e8
AM		 12201};
12202
d969d15f
AM		 12203/* Stripping output sections is normally done before dynamic section
12204 symbols have been allocated. This function is called later, and
12205 handles cases like htab->brlt which is mapped to its own output
12206 section. */
12207
12208static void
12209maybe_strip_output (struct bfd_link_info *info, asection *isec)
12210{
12211 if (isec->size == 0
12212 && isec->output_section->size == 0
53d8967a 12213 && !(isec->output_section->flags & SEC_KEEP)
d969d15f
AM		 12214 && !bfd_section_removed_from_list (info->output_bfd,
12215 isec->output_section)
12216 && elf_section_data (isec->output_section)->dynindx == 0)
12217 {
12218 isec->output_section->flags |= SEC_EXCLUDE;
12219 bfd_section_list_remove (info->output_bfd, isec->output_section);
12220 info->output_bfd->section_count--;
12221 }
12222}
12223
721956f4
AM		 12224/* Determine and set the size of the stub section for a final link.
12225
12226 The basic idea here is to examine all the relocations looking for
12227 PC-relative calls to a target that is unreachable with a "bl"
12228 instruction. */
12229
b34976b6 12230bfd_boolean
e7d1c40c 12231ppc64_elf_size_stubs (struct bfd_link_info *info)
721956f4
AM		 12232{
12233 bfd_size_type stub_group_size;
b34976b6 12234 bfd_boolean stubs_always_before_branch;
721956f4
AM		 12235 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12236
4dfe6ac6
NC		 12237 if (htab == NULL)
12238 return FALSE;
12239
0e1862bb 12240 if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info))
e7d1c40c 12241 htab->params->plt_thread_safe = 1;
b9e5796b 12242 if (!htab->opd_abi)
e7d1c40c
AM		 12243 htab->params->plt_thread_safe = 0;
12244 else if (htab->params->plt_thread_safe == -1)
794e51c0 12245 {
e2458743 12246 static const char *const thread_starter[] =
794e51c0
AM		 12247 {
12248 "pthread_create",
12249 /* libstdc++ */
12250 "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE",
12251 /* librt */
12252 "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio",
12253 "mq_notify", "create_timer",
12254 /* libanl */
12255 "getaddrinfo_a",
12256 /* libgomp */
2300b5a1 12257 "GOMP_parallel",
794e51c0 12258 "GOMP_parallel_start",
2300b5a1 12259 "GOMP_parallel_loop_static",
794e51c0 12260 "GOMP_parallel_loop_static_start",
2300b5a1 12261 "GOMP_parallel_loop_dynamic",
794e51c0 12262 "GOMP_parallel_loop_dynamic_start",
2300b5a1 12263 "GOMP_parallel_loop_guided",
794e51c0 12264 "GOMP_parallel_loop_guided_start",
2300b5a1 12265 "GOMP_parallel_loop_runtime",
794e51c0 12266 "GOMP_parallel_loop_runtime_start",
2300b5a1 12267 "GOMP_parallel_sections",
68ffbac6 12268 "GOMP_parallel_sections_start",
f9dffbf0
AM		 12269 /* libgo */
12270 "__go_go",
794e51c0
AM		 12271 };
12272 unsigned i;
12273
a4b6fadd 12274 for (i = 0; i < ARRAY_SIZE (thread_starter); i++)
794e51c0
AM		 12275 {
12276 struct elf_link_hash_entry *h;
12277 h = elf_link_hash_lookup (&htab->elf, thread_starter[i],
12278 FALSE, FALSE, TRUE);
e7d1c40c
AM		 12279 htab->params->plt_thread_safe = h != NULL && h->ref_regular;
12280 if (htab->params->plt_thread_safe)
794e51c0
AM		 12281 break;
12282 }
12283 }
e7d1c40c
AM		 12284 stubs_always_before_branch = htab->params->group_size < 0;
12285 if (htab->params->group_size < 0)
12286 stub_group_size = -htab->params->group_size;
721956f4 12287 else
e7d1c40c 12288 stub_group_size = htab->params->group_size;
721956f4 12289
6f20ed8a
AM		 12290 if (!group_sections (info, stub_group_size, stubs_always_before_branch))
12291 return FALSE;
721956f4 12292
c9301e31
AM		 12293#define STUB_SHRINK_ITER 20
12294 /* Loop until no stubs added. After iteration 20 of this loop we may
12295 exit on a stub section shrinking. This is to break out of a
12296 pathological case where adding stubs on one iteration decreases
12297 section gaps (perhaps due to alignment), which then requires
12298 fewer or smaller stubs on the next iteration. */
12299
721956f4
AM		 12300 while (1)
12301 {
12302 bfd *input_bfd;
12303 unsigned int bfd_indx;
a4b6fadd 12304 struct map_stub *group;
721956f4 12305 asection *stub_sec;
721956f4
AM		 12306
12307 htab->stub_iteration += 1;
721956f4
AM		 12308
12309 for (input_bfd = info->input_bfds, bfd_indx = 0;
12310 input_bfd != NULL;
c72f2fb2 12311 input_bfd = input_bfd->link.next, bfd_indx++)
721956f4
AM		 12312 {
12313 Elf_Internal_Shdr *symtab_hdr;
12314 asection *section;
6cdc0ccc 12315 Elf_Internal_Sym *local_syms = NULL;
721956f4 12316
0c8d6e5c 12317 if (!is_ppc64_elf (input_bfd))
67f93c31
AM		 12318 continue;
12319
721956f4 12320 /* We'll need the symbol table in a second. */
0ffa91dd 12321 symtab_hdr = &elf_symtab_hdr (input_bfd);
721956f4
AM		 12322 if (symtab_hdr->sh_info == 0)
12323 continue;
12324
721956f4
AM		 12325 /* Walk over each section attached to the input bfd. */
12326 for (section = input_bfd->sections;
12327 section != NULL;
12328 section = section->next)
12329 {
721956f4 12330 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 12331
12332 /* If there aren't any relocs, then there's nothing more
12333 to do. */
12334 if ((section->flags & SEC_RELOC) == 0
12c0f757
AM		 12335 || (section->flags & SEC_ALLOC) == 0
12336 || (section->flags & SEC_LOAD) == 0
12337 || (section->flags & SEC_CODE) == 0
721956f4
AM		 12338 || section->reloc_count == 0)
12339 continue;
12340
12341 /* If this section is a link-once section that will be
12342 discarded, then don't create any stubs. */
12343 if (section->output_section == NULL
927be08e 12344 || section->output_section->owner != info->output_bfd)
721956f4
AM		 12345 continue;
12346
1e2f5b6e
AM		 12347 /* Get the relocs. */
12348 internal_relocs
4ce794b7 12349 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 12350 info->keep_memory);
721956f4 12351 if (internal_relocs == NULL)
1e2f5b6e 12352 goto error_ret_free_local;
721956f4
AM		 12353
12354 /* Now examine each relocation. */
12355 irela = internal_relocs;
12356 irelaend = irela + section->reloc_count;
12357 for (; irela < irelaend; irela++)
12358 {
4ce794b7
AM		 12359 enum elf_ppc64_reloc_type r_type;
12360 unsigned int r_indx;
721956f4
AM		 12361 enum ppc_stub_type stub_type;
12362 struct ppc_stub_hash_entry *stub_entry;
8387904d 12363 asection *sym_sec, *code_sec;
e054468f 12364 bfd_vma sym_value, code_value;
721956f4 12365 bfd_vma destination;
6911b7dc 12366 unsigned long local_off;
8843416a 12367 bfd_boolean ok_dest;
721956f4 12368 struct ppc_link_hash_entry *hash;
8387904d 12369 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 12370 struct elf_link_hash_entry *h;
12371 Elf_Internal_Sym *sym;
721956f4
AM		 12372 char *stub_name;
12373 const asection *id_sec;
74f0fb50 12374 struct _opd_sec_data *opd;
e054468f 12375 struct plt_entry *plt_ent;
721956f4
AM		 12376
12377 r_type = ELF64_R_TYPE (irela->r_info);
12378 r_indx = ELF64_R_SYM (irela->r_info);
12379
4ce794b7 12380 if (r_type >= R_PPC64_max)
721956f4
AM		 12381 {
12382 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 12383 goto error_ret_free_internal;
721956f4
AM		 12384 }
12385
12386 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 12387 if (r_type != R_PPC64_REL24
12388 && r_type != R_PPC64_REL14
12389 && r_type != R_PPC64_REL14_BRTAKEN
12390 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 12391 continue;
12392
12393 /* Now determine the call target, its name, value,
12394 section. */
411e1bfb
AM		 12395 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
12396 r_indx, input_bfd))
12397 goto error_ret_free_internal;
12398 hash = (struct ppc_link_hash_entry *) h;
12399
8843416a 12400 ok_dest = FALSE;
8387904d 12401 fdh = NULL;
7fe2b9a6 12402 sym_value = 0;
411e1bfb 12403 if (hash == NULL)
721956f4 12404 {
411e1bfb 12405 sym_value = sym->st_value;
c27b8c2a
AM		 12406 if (sym_sec != NULL
12407 && sym_sec->output_section != NULL)
12408 ok_dest = TRUE;
721956f4 12409 }
7fe2b9a6
AM		 12410 else if (hash->elf.root.type == bfd_link_hash_defined
12411 || hash->elf.root.type == bfd_link_hash_defweak)
12412 {
12413 sym_value = hash->elf.root.u.def.value;
12414 if (sym_sec->output_section != NULL)
12415 ok_dest = TRUE;
12416 }
12417 else if (hash->elf.root.type == bfd_link_hash_undefweak
12418 || hash->elf.root.type == bfd_link_hash_undefined)
721956f4 12419 {
99877b66 12420 /* Recognise an old ABI func code entry sym, and
7fe2b9a6
AM		 12421 use the func descriptor sym instead if it is
12422 defined. */
ceb1f1ef 12423 if (hash->elf.root.root.string[0] == '.'
b31867b6 12424 && (fdh = lookup_fdh (hash, htab)) != NULL)
8387904d 12425 {
8387904d
AM		 12426 if (fdh->elf.root.type == bfd_link_hash_defined
12427 || fdh->elf.root.type == bfd_link_hash_defweak)
12428 {
12429 sym_sec = fdh->elf.root.u.def.section;
12430 sym_value = fdh->elf.root.u.def.value;
12431 if (sym_sec->output_section != NULL)
12432 ok_dest = TRUE;
12433 }
99877b66
AM		 12434 else
12435 fdh = NULL;
8387904d 12436 }
7fe2b9a6
AM		 12437 }
12438 else
12439 {
12440 bfd_set_error (bfd_error_bad_value);
12441 goto error_ret_free_internal;
721956f4
AM		 12442 }
12443
8843416a 12444 destination = 0;
6911b7dc 12445 local_off = 0;
8843416a
AM		 12446 if (ok_dest)
12447 {
12448 sym_value += irela->r_addend;
12449 destination = (sym_value
12450 + sym_sec->output_offset
12451 + sym_sec->output_section->vma);
6911b7dc
AM		 12452 local_off = PPC64_LOCAL_ENTRY_OFFSET (hash
12453 ? hash->elf.other
12454 : sym->st_other);
8843416a
AM		 12455 }
12456
8387904d 12457 code_sec = sym_sec;
e054468f 12458 code_value = sym_value;
74f0fb50
AM		 12459 opd = get_opd_info (sym_sec);
12460 if (opd != NULL)
8387904d
AM		 12461 {
12462 bfd_vma dest;
12463
74f0fb50 12464 if (hash == NULL && opd->adjust != NULL)
8387904d 12465 {
51aecdc5 12466 long adjust = opd->adjust[OPD_NDX (sym_value)];
8387904d
AM		 12467 if (adjust == -1)
12468 continue;
e054468f 12469 code_value += adjust;
8387904d
AM		 12470 sym_value += adjust;
12471 }
12472 dest = opd_entry_value (sym_sec, sym_value,
aef36ac1 12473 &code_sec, &code_value, FALSE);
8387904d
AM		 12474 if (dest != (bfd_vma) -1)
12475 {
12476 destination = dest;
12477 if (fdh != NULL)
12478 {
12479 /* Fixup old ABI sym to point at code
12480 entry. */
99877b66 12481 hash->elf.root.type = bfd_link_hash_defweak;
8387904d 12482 hash->elf.root.u.def.section = code_sec;
e054468f 12483 hash->elf.root.u.def.value = code_value;
8387904d
AM		 12484 }
12485 }
12486 }
12487
721956f4 12488 /* Determine what (if any) linker stub is needed. */
e054468f 12489 plt_ent = NULL;
721956f4 12490 stub_type = ppc_type_of_stub (section, irela, &hash,
6911b7dc
AM		 12491 &plt_ent, destination,
12492 local_off);
ad8e1ba5
AM		 12493
12494 if (stub_type != ppc_stub_plt_call)
12495 {
12496 /* Check whether we need a TOC adjusting stub.
12497 Since the linker pastes together pieces from
12498 different object files when creating the
12499 _init and _fini functions, it may be that a
12500 call to what looks like a local sym is in
12501 fact a call needing a TOC adjustment. */
8387904d
AM		 12502 if (code_sec != NULL
12503 && code_sec->output_section != NULL
6f20ed8a
AM		 12504 && (htab->sec_info[code_sec->id].toc_off
12505 != htab->sec_info[section->id].toc_off)
4c52953f
AM		 12506 && (code_sec->has_toc_reloc
12507 || code_sec->makes_toc_func_call))
ad8e1ba5
AM		 12508 stub_type = ppc_stub_long_branch_r2off;
12509 }
12510
721956f4
AM		 12511 if (stub_type == ppc_stub_none)
12512 continue;
12513
411e1bfb
AM		 12514 /* __tls_get_addr calls might be eliminated. */
12515 if (stub_type != ppc_stub_plt_call
12516 && hash != NULL
8387904d
AM		 12517 && (hash == htab->tls_get_addr
12518 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 12519 && section->has_tls_reloc
12520 && irela != internal_relocs)
12521 {
12522 /* Get tls info. */
f961d9dd 12523 unsigned char *tls_mask;
411e1bfb 12524
3a71aa26 12525 if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms,
411e1bfb
AM		 12526 irela - 1, input_bfd))
12527 goto error_ret_free_internal;
e7b938ca 12528 if (*tls_mask != 0)
411e1bfb
AM		 12529 continue;
12530 }
12531
3b421ab3
AM		 12532 if (stub_type == ppc_stub_plt_call
12533 && irela + 1 < irelaend
12534 && irela[1].r_offset == irela->r_offset + 4
794e51c0
AM		 12535 && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE)
12536 {
12537 if (!tocsave_find (htab, INSERT,
12538 &local_syms, irela + 1, input_bfd))
12539 goto error_ret_free_internal;
12540 }
12541 else if (stub_type == ppc_stub_plt_call)
12542 stub_type = ppc_stub_plt_call_r2save;
3b421ab3 12543
721956f4 12544 /* Support for grouping stub sections. */
6f20ed8a 12545 id_sec = htab->sec_info[section->id].u.group->link_sec;
721956f4
AM		 12546
12547 /* Get the name of this stub. */
12548 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
12549 if (!stub_name)
12550 goto error_ret_free_internal;
12551
12552 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 12553 stub_name, FALSE, FALSE);
721956f4
AM		 12554 if (stub_entry != NULL)
12555 {
12556 /* The proper stub has already been created. */
12557 free (stub_name);
794e51c0
AM		 12558 if (stub_type == ppc_stub_plt_call_r2save)
12559 stub_entry->stub_type = stub_type;
721956f4
AM		 12560 continue;
12561 }
12562
25f53a85 12563 stub_entry = ppc_add_stub (stub_name, section, info);
721956f4
AM		 12564 if (stub_entry == NULL)
12565 {
12566 free (stub_name);
6cdc0ccc
AM		 12567 error_ret_free_internal:
12568 if (elf_section_data (section)->relocs == NULL)
12569 free (internal_relocs);
12570 error_ret_free_local:
12571 if (local_syms != NULL
12572 && (symtab_hdr->contents
12573 != (unsigned char *) local_syms))
12574 free (local_syms);
b34976b6 12575 return FALSE;
721956f4
AM		 12576 }
12577
ad8e1ba5 12578 stub_entry->stub_type = stub_type;
794e51c0
AM		 12579 if (stub_type != ppc_stub_plt_call
12580 && stub_type != ppc_stub_plt_call_r2save)
e054468f
AM		 12581 {
12582 stub_entry->target_value = code_value;
12583 stub_entry->target_section = code_sec;
12584 }
12585 else
12586 {
12587 stub_entry->target_value = sym_value;
12588 stub_entry->target_section = sym_sec;
12589 }
721956f4 12590 stub_entry->h = hash;
e054468f 12591 stub_entry->plt_ent = plt_ent;
6911b7dc 12592 stub_entry->other = hash ? hash->elf.other : sym->st_other;
ee75fd95
AM		 12593
12594 if (stub_entry->h != NULL)
12595 htab->stub_globals += 1;
721956f4
AM		 12596 }
12597
12598 /* We're done with the internal relocs, free them. */
6cdc0ccc 12599 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 12600 free (internal_relocs);
721956f4 12601 }
6cdc0ccc
AM		 12602
12603 if (local_syms != NULL
12604 && symtab_hdr->contents != (unsigned char *) local_syms)
12605 {
12606 if (!info->keep_memory)
12607 free (local_syms);
12608 else
12609 symtab_hdr->contents = (unsigned char *) local_syms;
12610 }
721956f4
AM		 12611 }
12612
5c3dead3 12613 /* We may have added some stubs. Find out the new size of the
721956f4 12614 stub sections. */
e7d1c40c 12615 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 12616 stub_sec != NULL;
12617 stub_sec = stub_sec->next)
e717da7e 12618 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 12619 {
ea3d7d1c
AM		 12620 if (htab->stub_iteration <= STUB_SHRINK_ITER
12621 || stub_sec->rawsize < stub_sec->size)
12622 /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */
12623 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM		 12624 stub_sec->size = 0;
12625 stub_sec->reloc_count = 0;
84f5d08e 12626 stub_sec->flags &= ~SEC_RELOC;
ee75fd95 12627 }
eea6121a
AM		 12628
12629 htab->brlt->size = 0;
84f5d08e
AM		 12630 htab->brlt->reloc_count = 0;
12631 htab->brlt->flags &= ~SEC_RELOC;
ee75fd95 12632 if (htab->relbrlt != NULL)
eea6121a 12633 htab->relbrlt->size = 0;
721956f4 12634
63bc6f6c 12635 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 12636
a4b6fadd
AM		 12637 for (group = htab->group; group != NULL; group = group->next)
12638 if (group->needs_save_res)
12639 group->stub_sec->size += htab->sfpr->size;
12640
176a0d42
AM		 12641 if (info->emitrelocations
12642 && htab->glink != NULL && htab->glink->size != 0)
12643 {
12644 htab->glink->reloc_count = 1;
12645 htab->glink->flags |= SEC_RELOC;
12646 }
12647
58d180e8
AM		 12648 if (htab->glink_eh_frame != NULL
12649 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
9a2a56cc 12650 && htab->glink_eh_frame->output_section->size != 0)
58d180e8 12651 {
4bbe044a 12652 size_t size = 0, align;
58d180e8 12653
e7d1c40c 12654 for (stub_sec = htab->params->stub_bfd->sections;
58d180e8
AM		 12655 stub_sec != NULL;
12656 stub_sec = stub_sec->next)
12657 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
da44f4e5 12658 size += 24;
58d180e8
AM		 12659 if (htab->glink != NULL && htab->glink->size != 0)
12660 size += 24;
12661 if (size != 0)
12662 size += sizeof (glink_eh_frame_cie);
4bbe044a
AM		 12663 align = 1;
12664 align <<= htab->glink_eh_frame->output_section->alignment_power;
12665 align -= 1;
12666 size = (size + align) & ~align;
58d180e8
AM		 12667 htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size;
12668 htab->glink_eh_frame->size = size;
12669 }
12670
e7d1c40c
AM		 12671 if (htab->params->plt_stub_align != 0)
12672 for (stub_sec = htab->params->stub_bfd->sections;
794e51c0
AM		 12673 stub_sec != NULL;
12674 stub_sec = stub_sec->next)
12675 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
e7d1c40c
AM		 12676 stub_sec->size = ((stub_sec->size
12677 + (1 << htab->params->plt_stub_align) - 1)
29f628db 12678 & -(1 << htab->params->plt_stub_align));
794e51c0 12679
e7d1c40c 12680 for (stub_sec = htab->params->stub_bfd->sections;
5c3dead3
AM		 12681 stub_sec != NULL;
12682 stub_sec = stub_sec->next)
12683 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
c9301e31
AM		 12684 && stub_sec->rawsize != stub_sec->size
12685 && (htab->stub_iteration <= STUB_SHRINK_ITER
12686 || stub_sec->rawsize < stub_sec->size))
5c3dead3
AM		 12687 break;
12688
58d180e8
AM		 12689 if (stub_sec == NULL
12690 && (htab->glink_eh_frame == NULL
12691 || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size))
5c3dead3
AM		 12692 break;
12693
721956f4 12694 /* Ask the linker to do its stuff. */
e7d1c40c 12695 (*htab->params->layout_sections_again) ();
721956f4
AM		 12696 }
12697
da44f4e5
AM		 12698 if (htab->glink_eh_frame != NULL
12699 && htab->glink_eh_frame->size != 0)
12700 {
12701 bfd_vma val;
12702 bfd_byte *p, *last_fde;
12703 size_t last_fde_len, size, align, pad;
12704 asection *stub_sec;
12705
12706 p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size);
12707 if (p == NULL)
12708 return FALSE;
12709 htab->glink_eh_frame->contents = p;
12710 last_fde = p;
12711
12712 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
12713 /* CIE length (rewrite in case little-endian). */
12714 last_fde_len = sizeof (glink_eh_frame_cie) - 4;
12715 bfd_put_32 (htab->elf.dynobj, last_fde_len, p);
12716 p += sizeof (glink_eh_frame_cie);
12717
12718 for (stub_sec = htab->params->stub_bfd->sections;
12719 stub_sec != NULL;
12720 stub_sec = stub_sec->next)
12721 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12722 {
12723 last_fde = p;
12724 last_fde_len = 20;
12725 /* FDE length. */
12726 bfd_put_32 (htab->elf.dynobj, 20, p);
12727 p += 4;
12728 /* CIE pointer. */
12729 val = p - htab->glink_eh_frame->contents;
12730 bfd_put_32 (htab->elf.dynobj, val, p);
12731 p += 4;
12732 /* Offset to stub section, written later. */
12733 p += 4;
12734 /* stub section size. */
12735 bfd_put_32 (htab->elf.dynobj, stub_sec->size, p);
12736 p += 4;
12737 /* Augmentation. */
12738 p += 1;
12739 /* Pad. */
12740 p += 7;
12741 }
12742 if (htab->glink != NULL && htab->glink->size != 0)
12743 {
12744 last_fde = p;
12745 last_fde_len = 20;
12746 /* FDE length. */
12747 bfd_put_32 (htab->elf.dynobj, 20, p);
12748 p += 4;
12749 /* CIE pointer. */
12750 val = p - htab->glink_eh_frame->contents;
12751 bfd_put_32 (htab->elf.dynobj, val, p);
12752 p += 4;
12753 /* Offset to .glink, written later. */
12754 p += 4;
12755 /* .glink size. */
12756 bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p);
12757 p += 4;
12758 /* Augmentation. */
12759 p += 1;
12760
12761 *p++ = DW_CFA_advance_loc + 1;
12762 *p++ = DW_CFA_register;
12763 *p++ = 65;
9f08fa5c 12764 *p++ = htab->opd_abi ? 12 : 0;
da44f4e5
AM		 12765 *p++ = DW_CFA_advance_loc + 4;
12766 *p++ = DW_CFA_restore_extended;
12767 *p++ = 65;
12768 }
12769 /* Subsume any padding into the last FDE if user .eh_frame
12770 sections are aligned more than glink_eh_frame. Otherwise any
12771 zero padding will be seen as a terminator. */
12772 size = p - htab->glink_eh_frame->contents;
12773 align = 1;
12774 align <<= htab->glink_eh_frame->output_section->alignment_power;
12775 align -= 1;
12776 pad = ((size + align) & ~align) - size;
12777 htab->glink_eh_frame->size = size + pad;
12778 bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde);
12779 }
12780
d969d15f
AM		 12781 maybe_strip_output (info, htab->brlt);
12782 if (htab->glink_eh_frame != NULL)
12783 maybe_strip_output (info, htab->glink_eh_frame);
721956f4 12784
b34976b6 12785 return TRUE;
721956f4
AM		 12786}
12787
12788/* Called after we have determined section placement. If sections
805fc799 12789 move, we'll be called again. Provide a value for TOCstart. */
721956f4 12790
805fc799 12791bfd_vma
1c865ab2 12792ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd)
721956f4 12793{
805fc799 12794 asection *s;
a27e685f 12795 bfd_vma TOCstart, adjust;
721956f4 12796
43417696
AM		 12797 if (info != NULL)
12798 {
12799 struct elf_link_hash_entry *h;
12800 struct elf_link_hash_table *htab = elf_hash_table (info);
12801
12802 if (is_elf_hash_table (htab)
12803 && htab->hgot != NULL)
12804 h = htab->hgot;
12805 else
12806 {
12807 h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE);
12808 if (is_elf_hash_table (htab))
12809 htab->hgot = h;
12810 }
12811 if (h != NULL
12812 && h->root.type == bfd_link_hash_defined
12813 && !h->root.linker_def
12814 && (!is_elf_hash_table (htab)
12815 || h->def_regular))
12816 {
12817 TOCstart = (h->root.u.def.value - TOC_BASE_OFF
12818 + h->root.u.def.section->output_offset
12819 + h->root.u.def.section->output_section->vma);
12820 _bfd_set_gp_value (obfd, TOCstart);
12821 return TOCstart;
12822 }
12823 }
12824
805fc799
AM		 12825 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
12826 order. The TOC starts where the first of these sections starts. */
12827 s = bfd_get_section_by_name (obfd, ".got");
e054468f 12828 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12829 s = bfd_get_section_by_name (obfd, ".toc");
e054468f 12830 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12831 s = bfd_get_section_by_name (obfd, ".tocbss");
e054468f 12832 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12833 s = bfd_get_section_by_name (obfd, ".plt");
e054468f 12834 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799
AM		 12835 {
12836 /* This may happen for
12837 o references to TOC base (SYM@toc / TOC[tc0]) without a
12838 .toc directive
12839 o bad linker script
12840 o --gc-sections and empty TOC sections
12841
12842 FIXME: Warn user? */
12843
12844 /* Look for a likely section. We probably won't even be
12845 using TOCstart. */
12846 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM		 12847 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY
12848 | SEC_EXCLUDE))
805fc799
AM		 12849 == (SEC_ALLOC | SEC_SMALL_DATA))
12850 break;
721956f4 12851 if (s == NULL)
805fc799 12852 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 12853 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE))
805fc799
AM		 12854 == (SEC_ALLOC | SEC_SMALL_DATA))
12855 break;
721956f4 12856 if (s == NULL)
805fc799 12857 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM		 12858 if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE))
12859 == SEC_ALLOC)
805fc799 12860 break;
721956f4 12861 if (s == NULL)
805fc799 12862 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 12863 if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC)
805fc799
AM		 12864 break;
12865 }
721956f4 12866
805fc799
AM		 12867 TOCstart = 0;
12868 if (s != NULL)
12869 TOCstart = s->output_section->vma + s->output_offset;
721956f4 12870
a27e685f
AM		 12871 /* Force alignment. */
12872 adjust = TOCstart & (TOC_BASE_ALIGN - 1);
12873 TOCstart -= adjust;
1c865ab2
AM		 12874 _bfd_set_gp_value (obfd, TOCstart);
12875
810d4e75 12876 if (info != NULL && s != NULL)
1c865ab2
AM		 12877 {
12878 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12879
810d4e75
AM		 12880 if (htab != NULL)
12881 {
12882 if (htab->elf.hgot != NULL)
12883 {
a27e685f 12884 htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust;
810d4e75
AM		 12885 htab->elf.hgot->root.u.def.section = s;
12886 }
12887 }
12888 else
1c865ab2 12889 {
810d4e75
AM		 12890 struct bfd_link_hash_entry *bh = NULL;
12891 _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL,
a27e685f
AM		 12892 s, TOC_BASE_OFF - adjust,
12893 NULL, FALSE, FALSE, &bh);
1c865ab2
AM		 12894 }
12895 }
805fc799 12896 return TOCstart;
721956f4
AM		 12897}
12898
a345bc8d
AM		 12899/* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to
12900 write out any global entry stubs. */
12901
12902static bfd_boolean
12903build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
12904{
12905 struct bfd_link_info *info;
12906 struct ppc_link_hash_table *htab;
12907 struct plt_entry *pent;
12908 asection *s;
12909
12910 if (h->root.type == bfd_link_hash_indirect)
12911 return TRUE;
12912
12913 if (!h->pointer_equality_needed)
12914 return TRUE;
12915
12916 if (h->def_regular)
12917 return TRUE;
12918
12919 info = inf;
12920 htab = ppc_hash_table (info);
12921 if (htab == NULL)
12922 return FALSE;
12923
12924 s = htab->glink;
12925 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
12926 if (pent->plt.offset != (bfd_vma) -1
12927 && pent->addend == 0)
12928 {
12929 bfd_byte *p;
12930 asection *plt;
12931 bfd_vma off;
12932
a345bc8d 12933 p = s->contents + h->root.u.def.value;
33e44f2e 12934 plt = htab->elf.splt;
a345bc8d
AM		 12935 if (!htab->elf.dynamic_sections_created
12936 || h->dynindx == -1)
33e44f2e 12937 plt = htab->elf.iplt;
a345bc8d
AM		 12938 off = pent->plt.offset + plt->output_offset + plt->output_section->vma;
12939 off -= h->root.u.def.value + s->output_offset + s->output_section->vma;
12940
12941 if (off + 0x80008000 > 0xffffffff || (off & 3) != 0)
12942 {
12943 info->callbacks->einfo
12944 (_("%P: linkage table error against `%T'\n"),
12945 h->root.root.string);
12946 bfd_set_error (bfd_error_bad_value);
12947 htab->stub_error = TRUE;
12948 }
12949
7341d5e2
AM		 12950 htab->stub_count[ppc_stub_global_entry - 1] += 1;
12951 if (htab->params->emit_stub_syms)
12952 {
12953 size_t len = strlen (h->root.root.string);
12954 char *name = bfd_malloc (sizeof "12345678.global_entry." + len);
12955
12956 if (name == NULL)
12957 return FALSE;
12958
12959 sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string);
12960 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
12961 if (h == NULL)
12962 return FALSE;
12963 if (h->root.type == bfd_link_hash_new)
12964 {
12965 h->root.type = bfd_link_hash_defined;
12966 h->root.u.def.section = s;
12967 h->root.u.def.value = p - s->contents;
12968 h->ref_regular = 1;
12969 h->def_regular = 1;
12970 h->ref_regular_nonweak = 1;
12971 h->forced_local = 1;
12972 h->non_elf = 0;
2ec55de3 12973 h->root.linker_def = 1;
7341d5e2
AM		 12974 }
12975 }
12976
a345bc8d
AM		 12977 if (PPC_HA (off) != 0)
12978 {
12979 bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p);
12980 p += 4;
12981 }
12982 bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p);
12983 p += 4;
12984 bfd_put_32 (s->owner, MTCTR_R12, p);
12985 p += 4;
12986 bfd_put_32 (s->owner, BCTR, p);
12987 break;
12988 }
12989 return TRUE;
12990}
12991
721956f4
AM		 12992/* Build all the stubs associated with the current output file.
12993 The stubs are kept in a hash table attached to the main linker
12994 hash table. This function is called via gldelf64ppc_finish. */
12995
b34976b6 12996bfd_boolean
e7d1c40c 12997ppc64_elf_build_stubs (struct bfd_link_info *info,
4ce794b7 12998 char **stats)
5d1634d7
AM		 12999{
13000 struct ppc_link_hash_table *htab = ppc_hash_table (info);
a4b6fadd 13001 struct map_stub *group;
721956f4 13002 asection *stub_sec;
5d1634d7 13003 bfd_byte *p;
e717da7e 13004 int stub_sec_count = 0;
5d1634d7 13005
4dfe6ac6
NC		 13006 if (htab == NULL)
13007 return FALSE;
13008
eea6121a 13009 /* Allocate memory to hold the linker stubs. */
e7d1c40c 13010 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 13011 stub_sec != NULL;
13012 stub_sec = stub_sec->next)
eea6121a
AM		 13013 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
13014 && stub_sec->size != 0)
e717da7e 13015 {
e7d1c40c 13016 stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size);
eea6121a
AM		 13017 if (stub_sec->contents == NULL)
13018 return FALSE;
eea6121a 13019 stub_sec->size = 0;
e717da7e 13020 }
5d1634d7 13021
23eb7e01 13022 if (htab->glink != NULL && htab->glink->size != 0)
5d1634d7 13023 {
9f951329 13024 unsigned int indx;
ad8e1ba5 13025 bfd_vma plt0;
9f951329 13026
721956f4 13027 /* Build the .glink plt call stub. */
e7d1c40c 13028 if (htab->params->emit_stub_syms)
97b639ba
AM		 13029 {
13030 struct elf_link_hash_entry *h;
468392fb
AM		 13031 h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
13032 TRUE, FALSE, FALSE);
97b639ba
AM		 13033 if (h == NULL)
13034 return FALSE;
13035 if (h->root.type == bfd_link_hash_new)
13036 {
13037 h->root.type = bfd_link_hash_defined;
13038 h->root.u.def.section = htab->glink;
ee4bf8d2 13039 h->root.u.def.value = 8;
f5385ebf
AM		 13040 h->ref_regular = 1;
13041 h->def_regular = 1;
13042 h->ref_regular_nonweak = 1;
13043 h->forced_local = 1;
13044 h->non_elf = 0;
2ec55de3 13045 h->root.linker_def = 1;
97b639ba
AM		 13046 }
13047 }
33e44f2e
AM		 13048 plt0 = (htab->elf.splt->output_section->vma
13049 + htab->elf.splt->output_offset
13050 - 16);
176a0d42
AM		 13051 if (info->emitrelocations)
13052 {
13053 Elf_Internal_Rela *r = get_relocs (htab->glink, 1);
13054 if (r == NULL)
13055 return FALSE;
13056 r->r_offset = (htab->glink->output_offset
13057 + htab->glink->output_section->vma);
13058 r->r_info = ELF64_R_INFO (0, R_PPC64_REL64);
13059 r->r_addend = plt0;
13060 }
4ce794b7 13061 p = htab->glink->contents;
176a0d42 13062 plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
ee4bf8d2
AM		 13063 bfd_put_64 (htab->glink->owner, plt0, p);
13064 p += 8;
b9e5796b
AM		 13065 if (htab->opd_abi)
13066 {
13067 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
13068 p += 4;
13069 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
13070 p += 4;
13071 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
13072 p += 4;
13073 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
13074 p += 4;
13075 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
13076 p += 4;
13077 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
13078 p += 4;
13079 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
13080 p += 4;
13081 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p);
13082 p += 4;
13083 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
13084 p += 4;
13085 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p);
13086 p += 4;
13087 }
13088 else
13089 {
13090 bfd_put_32 (htab->glink->owner, MFLR_R0, p);
13091 p += 4;
13092 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
13093 p += 4;
13094 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
13095 p += 4;
13096 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
13097 p += 4;
13098 bfd_put_32 (htab->glink->owner, MTLR_R0, p);
13099 p += 4;
13100 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
13101 p += 4;
13102 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
13103 p += 4;
13104 bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p);
13105 p += 4;
13106 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
13107 p += 4;
13108 bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p);
13109 p += 4;
13110 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
13111 p += 4;
13112 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p);
13113 p += 4;
13114 }
4ce794b7 13115 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5 13116 p += 4;
ee4bf8d2
AM		 13117 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
13118 {
13119 bfd_put_32 (htab->glink->owner, NOP, p);
13120 p += 4;
13121 }
ad8e1ba5 13122
9f951329
AM		 13123 /* Build the .glink lazy link call stubs. */
13124 indx = 0;
a345bc8d 13125 while (p < htab->glink->contents + htab->glink->rawsize)
9f951329 13126 {
b9e5796b 13127 if (htab->opd_abi)
9f951329 13128 {
b9e5796b
AM		 13129 if (indx < 0x8000)
13130 {
13131 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
13132 p += 4;
13133 }
13134 else
13135 {
13136 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
13137 p += 4;
13138 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx),
13139 p);
13140 p += 4;
13141 }
9f951329 13142 }
4ce794b7 13143 bfd_put_32 (htab->glink->owner,
ee4bf8d2 13144 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
a16d5acb 13145 indx++;
9f951329
AM		 13146 p += 4;
13147 }
a345bc8d
AM		 13148
13149 /* Build .glink global entry stubs. */
13150 if (htab->glink->size > htab->glink->rawsize)
afe397ea 13151 elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info);
5d1634d7 13152 }
5d1634d7 13153
7341d5e2 13154 if (htab->brlt != NULL && htab->brlt->size != 0)
721956f4 13155 {
4ce794b7 13156 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 13157 htab->brlt->size);
4ce794b7 13158 if (htab->brlt->contents == NULL)
b34976b6 13159 return FALSE;
721956f4 13160 }
ee75fd95 13161 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM		 13162 {
13163 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 13164 htab->relbrlt->size);
63bc6f6c
AM		 13165 if (htab->relbrlt->contents == NULL)
13166 return FALSE;
13167 }
5d1634d7 13168
721956f4
AM		 13169 /* Build the stubs as directed by the stub hash table. */
13170 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 13171
a4b6fadd
AM		 13172 for (group = htab->group; group != NULL; group = group->next)
13173 if (group->needs_save_res)
13174 {
13175 stub_sec = group->stub_sec;
13176 memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents,
13177 htab->sfpr->size);
13178 if (htab->params->emit_stub_syms)
13179 {
13180 unsigned int i;
13181
13182 for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++)
13183 if (!sfpr_define (info, &save_res_funcs[i], stub_sec))
13184 return FALSE;
13185 }
13186 stub_sec->size += htab->sfpr->size;
13187 }
13188
aa8a7074
AM		 13189 if (htab->relbrlt != NULL)
13190 htab->relbrlt->reloc_count = 0;
13191
e7d1c40c
AM		 13192 if (htab->params->plt_stub_align != 0)
13193 for (stub_sec = htab->params->stub_bfd->sections;
794e51c0
AM		 13194 stub_sec != NULL;
13195 stub_sec = stub_sec->next)
13196 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
e7d1c40c
AM		 13197 stub_sec->size = ((stub_sec->size
13198 + (1 << htab->params->plt_stub_align) - 1)
29f628db 13199 & -(1 << htab->params->plt_stub_align));
794e51c0 13200
e7d1c40c 13201 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 13202 stub_sec != NULL;
13203 stub_sec = stub_sec->next)
e717da7e
AM		 13204 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
13205 {
13206 stub_sec_count += 1;
c9301e31
AM		 13207 if (stub_sec->rawsize != stub_sec->size
13208 && (htab->stub_iteration <= STUB_SHRINK_ITER
13209 || stub_sec->rawsize < stub_sec->size))
e717da7e
AM		 13210 break;
13211 }
5d1634d7 13212
da44f4e5
AM		 13213 /* Note that the glink_eh_frame check here is not only testing that
13214 the generated size matched the calculated size but also that
13215 bfd_elf_discard_info didn't make any changes to the section. */
721956f4 13216 if (stub_sec != NULL
58d180e8
AM		 13217 || (htab->glink_eh_frame != NULL
13218 && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size))
5d1634d7 13219 {
b34976b6 13220 htab->stub_error = TRUE;
8de848d8 13221 info->callbacks->einfo (_("%P: stubs don't match calculated size\n"));
5d1634d7 13222 }
721956f4 13223
d2a300cf
AM		 13224 if (htab->stub_error)
13225 return FALSE;
13226
13227 if (stats != NULL)
13228 {
13229 *stats = bfd_malloc (500);
13230 if (*stats == NULL)
13231 return FALSE;
13232
ee75fd95 13233 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM		 13234 " branch %lu\n"
13235 " toc adjust %lu\n"
13236 " long branch %lu\n"
13237 " long toc adj %lu\n"
794e51c0 13238 " plt call %lu\n"
7341d5e2
AM		 13239 " plt call toc %lu\n"
13240 " global entry %lu"),
e717da7e 13241 stub_sec_count,
ee75fd95 13242 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM		 13243 htab->stub_count[ppc_stub_long_branch - 1],
13244 htab->stub_count[ppc_stub_long_branch_r2off - 1],
13245 htab->stub_count[ppc_stub_plt_branch - 1],
13246 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
794e51c0 13247 htab->stub_count[ppc_stub_plt_call - 1],
7341d5e2
AM		 13248 htab->stub_count[ppc_stub_plt_call_r2save - 1],
13249 htab->stub_count[ppc_stub_global_entry - 1]);
d2a300cf
AM		 13250 }
13251 return TRUE;
5bd4f169
AM		 13252}
13253
99877b66
AM		 13254/* This function undoes the changes made by add_symbol_adjust. */
13255
13256static bfd_boolean
13257undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
13258{
13259 struct ppc_link_hash_entry *eh;
13260
13261 if (h->root.type == bfd_link_hash_indirect)
13262 return TRUE;
13263
99877b66
AM		 13264 eh = (struct ppc_link_hash_entry *) h;
13265 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
13266 return TRUE;
13267
13268 eh->elf.root.type = bfd_link_hash_undefined;
13269 return TRUE;
13270}
13271
13272void
13273ppc64_elf_restore_symbols (struct bfd_link_info *info)
13274{
13275 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4dfe6ac6
NC		 13276
13277 if (htab != NULL)
13278 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
99877b66
AM		 13279}
13280
60124e18
AM		 13281/* What to do when ld finds relocations against symbols defined in
13282 discarded sections. */
13283
13284static unsigned int
13285ppc64_elf_action_discarded (asection *sec)
13286{
13287 if (strcmp (".opd", sec->name) == 0)
13288 return 0;
13289
13290 if (strcmp (".toc", sec->name) == 0)
13291 return 0;
13292
bce50a28
JJ		 13293 if (strcmp (".toc1", sec->name) == 0)
13294 return 0;
13295
60124e18
AM		 13296 return _bfd_elf_default_action_discarded (sec);
13297}
13298
5bd4f169
AM		 13299/* The RELOCATE_SECTION function is called by the ELF backend linker
13300 to handle the relocations for a section.
13301
13302 The relocs are always passed as Rela structures; if the section
13303 actually uses Rel structures, the r_addend field will always be
13304 zero.
13305
13306 This function is responsible for adjust the section contents as
13307 necessary, and (if using Rela relocs and generating a
1049f94e 13308 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 13309 necessary.
13310
13311 This function does not have to worry about setting the reloc
13312 address or the reloc symbol index.
13313
13314 LOCAL_SYMS is a pointer to the swapped in local symbols.
13315
13316 LOCAL_SECTIONS is an array giving the section in the input file
13317 corresponding to the st_shndx field of each local symbol.
13318
13319 The global hash table entry for the global symbols can be found
13320 via elf_sym_hashes (input_bfd).
13321
1049f94e 13322 When generating relocatable output, this function must handle
5bd4f169
AM		 13323 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
13324 going to be the section symbol corresponding to the output
13325 section, which means that the addend must be adjusted
13326 accordingly. */
13327
b34976b6 13328static bfd_boolean
4ce794b7
AM		 13329ppc64_elf_relocate_section (bfd *output_bfd,
13330 struct bfd_link_info *info,
13331 bfd *input_bfd,
13332 asection *input_section,
13333 bfd_byte *contents,
13334 Elf_Internal_Rela *relocs,
13335 Elf_Internal_Sym *local_syms,
13336 asection **local_sections)
5bd4f169 13337{
65f38f15 13338 struct ppc_link_hash_table *htab;
5bd4f169
AM		 13339 Elf_Internal_Shdr *symtab_hdr;
13340 struct elf_link_hash_entry **sym_hashes;
5bd4f169 13341 Elf_Internal_Rela *rel;
c316a17c 13342 Elf_Internal_Rela *wrel;
5bd4f169 13343 Elf_Internal_Rela *relend;
411e1bfb
AM		 13344 Elf_Internal_Rela outrel;
13345 bfd_byte *loc;
411e1bfb 13346 struct got_entry **local_got_ents;
5bd4f169 13347 bfd_vma TOCstart;
b34976b6
AM		 13348 bfd_boolean ret = TRUE;
13349 bfd_boolean is_opd;
794e51c0
AM		 13350 /* Assume 'at' branch hints. */
13351 bfd_boolean is_isa_v2 = TRUE;
95f0d0d2 13352 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
5bd4f169 13353
65f38f15 13354 /* Initialize howto table if needed. */
5bd4f169 13355 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 13356 ppc_howto_init ();
13357
65f38f15 13358 htab = ppc_hash_table (info);
4dfe6ac6
NC		 13359 if (htab == NULL)
13360 return FALSE;
ee75fd95
AM		 13361
13362 /* Don't relocate stub sections. */
e7d1c40c 13363 if (input_section->owner == htab->params->stub_bfd)
ee75fd95
AM		 13364 return TRUE;
13365
0c8d6e5c 13366 BFD_ASSERT (is_ppc64_elf (input_bfd));
0ffa91dd 13367
411e1bfb 13368 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 13369 TOCstart = elf_gp (output_bfd);
0ffa91dd 13370 symtab_hdr = &elf_symtab_hdr (input_bfd);
5bd4f169 13371 sym_hashes = elf_sym_hashes (input_bfd);
7c8fe5c4 13372 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
65f38f15 13373
c316a17c 13374 rel = wrel = relocs;
5bd4f169 13375 relend = relocs + input_section->reloc_count;
c316a17c 13376 for (; rel < relend; wrel++, rel++)
5bd4f169 13377 {
04c9666a 13378 enum elf_ppc64_reloc_type r_type;
31c76678 13379 bfd_vma addend;
5bd4f169
AM		 13380 bfd_reloc_status_type r;
13381 Elf_Internal_Sym *sym;
13382 asection *sec;
039b3fef
AM		 13383 struct elf_link_hash_entry *h_elf;
13384 struct ppc_link_hash_entry *h;
13385 struct ppc_link_hash_entry *fdh;
5bd4f169 13386 const char *sym_name;
0d4792f7 13387 unsigned long r_symndx, toc_symndx;
3a71aa26 13388 bfd_vma toc_addend;
f961d9dd
AM		 13389 unsigned char tls_mask, tls_gd, tls_type;
13390 unsigned char sym_type;
5bd4f169 13391 bfd_vma relocation;
b34976b6
AM		 13392 bfd_boolean unresolved_reloc;
13393 bfd_boolean warned;
bc30df16 13394 enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest;
67f0cbdb 13395 unsigned int insn;
e11840f9 13396 unsigned int mask;
721956f4
AM		 13397 struct ppc_stub_hash_entry *stub_entry;
13398 bfd_vma max_br_offset;
13399 bfd_vma from;
c316a17c 13400 Elf_Internal_Rela orig_rel;
b80eed39
AM		 13401 reloc_howto_type *howto;
13402 struct reloc_howto_struct alt_howto;
5bd4f169 13403
c316a17c
AM		 13404 again:
13405 orig_rel = *rel;
13406
4ce794b7 13407 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 13408 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 13409
13410 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
13411 symbol of the previous ADDR64 reloc. The symbol gives us the
13412 proper TOC base to use. */
13413 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
c316a17c
AM		 13414 && wrel != relocs
13415 && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64
ee87f2da 13416 && is_opd)
c316a17c 13417 r_symndx = ELF64_R_SYM (wrel[-1].r_info);
ee87f2da 13418
4ce794b7
AM		 13419 sym = NULL;
13420 sec = NULL;
039b3fef 13421 h_elf = NULL;
4ce794b7 13422 sym_name = NULL;
b34976b6
AM		 13423 unresolved_reloc = FALSE;
13424 warned = FALSE;
65f38f15 13425
0b13192e 13426 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 13427 {
13428 /* It's a local symbol. */
74f0fb50 13429 struct _opd_sec_data *opd;
4025353c 13430
5bd4f169
AM		 13431 sym = local_syms + r_symndx;
13432 sec = local_sections[r_symndx];
26c61ae5 13433 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 13434 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 13435 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
74f0fb50
AM		 13436 opd = get_opd_info (sec);
13437 if (opd != NULL && opd->adjust != NULL)
1e2f5b6e 13438 {
51aecdc5
AM		 13439 long adjust = opd->adjust[OPD_NDX (sym->st_value
13440 + rel->r_addend)];
4025353c
AM		 13441 if (adjust == -1)
13442 relocation = 0;
13443 else
4cc603a5
AM		 13444 {
13445 /* If this is a relocation against the opd section sym
13446 and we have edited .opd, adjust the reloc addend so
13447 that ld -r and ld --emit-relocs output is correct.
13448 If it is a reloc against some other .opd symbol,
13449 then the symbol value will be adjusted later. */
13450 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
13451 rel->r_addend += adjust;
13452 else
13453 relocation += adjust;
13454 }
1e2f5b6e 13455 }
5bd4f169
AM		 13456 }
13457 else
13458 {
62d887d4
L		 13459 bfd_boolean ignored;
13460
b2a8e766
AM		 13461 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
13462 r_symndx, symtab_hdr, sym_hashes,
039b3fef 13463 h_elf, sec, relocation,
62d887d4 13464 unresolved_reloc, warned, ignored);
039b3fef
AM		 13465 sym_name = h_elf->root.root.string;
13466 sym_type = h_elf->type;
b69fdb4e
AM		 13467 if (sec != NULL
13468 && sec->owner == output_bfd
13469 && strcmp (sec->name, ".opd") == 0)
13470 {
13471 /* This is a symbol defined in a linker script. All
13472 such are defined in output sections, even those
13473 defined by simple assignment from a symbol defined in
13474 an input section. Transfer the symbol to an
13475 appropriate input .opd section, so that a branch to
13476 this symbol will be mapped to the location specified
13477 by the opd entry. */
13478 struct bfd_link_order *lo;
13479 for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next)
13480 if (lo->type == bfd_indirect_link_order)
13481 {
13482 asection *isec = lo->u.indirect.section;
13483 if (h_elf->root.u.def.value >= isec->output_offset
13484 && h_elf->root.u.def.value < (isec->output_offset
13485 + isec->size))
13486 {
13487 h_elf->root.u.def.value -= isec->output_offset;
13488 h_elf->root.u.def.section = isec;
13489 sec = isec;
13490 break;
13491 }
13492 }
13493 }
5bd4f169 13494 }
039b3fef 13495 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 13496
dbaa2011 13497 if (sec != NULL && discarded_section (sec))
c316a17c
AM		 13498 {
13499 _bfd_clear_contents (ppc64_elf_howto_table[r_type],
13500 input_bfd, input_section,
13501 contents + rel->r_offset);
13502 wrel->r_offset = rel->r_offset;
13503 wrel->r_info = 0;
13504 wrel->r_addend = 0;
13505
13506 /* For ld -r, remove relocations in debug sections against
13507 sections defined in discarded sections. Not done for
13508 non-debug to preserve relocs in .eh_frame which the
13509 eh_frame editing code expects to be present. */
13510 if (bfd_link_relocatable (info)
13511 && (input_section->flags & SEC_DEBUGGING))
13512 wrel--;
13513
13514 continue;
13515 }
ab96bf03 13516
0e1862bb 13517 if (bfd_link_relocatable (info))
c316a17c 13518 goto copy_reloc;
ab96bf03 13519
f40da81b
AM		 13520 if (h != NULL && &h->elf == htab->elf.hgot)
13521 {
6f20ed8a 13522 relocation = TOCstart + htab->sec_info[input_section->id].toc_off;
f40da81b
AM		 13523 sec = bfd_abs_section_ptr;
13524 unresolved_reloc = FALSE;
13525 }
13526
951fd09b
AM		 13527 /* TLS optimizations. Replace instruction sequences and relocs
13528 based on information we collected in tls_optimize. We edit
13529 RELOCS so that --emit-relocs will output something sensible
13530 for the final instruction stream. */
13531 tls_mask = 0;
13532 tls_gd = 0;
0d4792f7 13533 toc_symndx = 0;
727fc41e
AM		 13534 if (h != NULL)
13535 tls_mask = h->tls_mask;
13536 else if (local_got_ents != NULL)
411e1bfb 13537 {
e054468f
AM		 13538 struct plt_entry **local_plt = (struct plt_entry **)
13539 (local_got_ents + symtab_hdr->sh_info);
f961d9dd 13540 unsigned char *lgot_masks = (unsigned char *)
e054468f 13541 (local_plt + symtab_hdr->sh_info);
727fc41e
AM		 13542 tls_mask = lgot_masks[r_symndx];
13543 }
13544 if (tls_mask == 0
13545 && (r_type == R_PPC64_TLS
13546 || r_type == R_PPC64_TLSGD
13547 || r_type == R_PPC64_TLSLD))
13548 {
13549 /* Check for toc tls entries. */
f961d9dd 13550 unsigned char *toc_tls;
0d4792f7 13551
727fc41e
AM		 13552 if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13553 &local_syms, rel, input_bfd))
13554 return FALSE;
0d4792f7 13555
727fc41e
AM		 13556 if (toc_tls)
13557 tls_mask = *toc_tls;
0d4792f7
AM		 13558 }
13559
13560 /* Check that tls relocs are used with tls syms, and non-tls
13561 relocs are used with non-tls syms. */
cf35638d 13562 if (r_symndx != STN_UNDEF
0d4792f7
AM		 13563 && r_type != R_PPC64_NONE
13564 && (h == NULL
039b3fef
AM		 13565 || h->elf.root.type == bfd_link_hash_defined
13566 || h->elf.root.type == bfd_link_hash_defweak)
1d483afe
AM		 13567 && (IS_PPC64_TLS_RELOC (r_type)
13568 != (sym_type == STT_TLS
13569 || (sym_type == STT_SECTION
13570 && (sec->flags & SEC_THREAD_LOCAL) != 0))))
0d4792f7 13571 {
727fc41e
AM		 13572 if (tls_mask != 0
13573 && (r_type == R_PPC64_TLS
13574 || r_type == R_PPC64_TLSGD
13575 || r_type == R_PPC64_TLSLD))
0d4792f7
AM		 13576 /* R_PPC64_TLS is OK against a symbol in the TOC. */
13577 ;
13578 else
25f53a85 13579 info->callbacks->einfo
1d483afe 13580 (!IS_PPC64_TLS_RELOC (r_type)
695344c0 13581 /* xgettext:c-format */
bc30df16 13582 ? _("%P: %H: %s used with TLS symbol `%T'\n")
695344c0 13583 /* xgettext:c-format */
bc30df16 13584 : _("%P: %H: %s used with non-TLS symbol `%T'\n"),
25f53a85 13585 input_bfd, input_section, rel->r_offset,
0d4792f7
AM		 13586 ppc64_elf_howto_table[r_type]->name,
13587 sym_name);
411e1bfb
AM		 13588 }
13589
13590 /* Ensure reloc mapping code below stays sane. */
13591 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
13592 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
13593 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
13594 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
13595 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
13596 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
13597 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
13598 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
13599 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
13600 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
13601 abort ();
0d4792f7 13602
411e1bfb
AM		 13603 switch (r_type)
13604 {
13605 default:
411e1bfb
AM		 13606 break;
13607
ba761f19 13608 case R_PPC64_LO_DS_OPT:
95f0d0d2 13609 insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset);
ba761f19
AM		 13610 if ((insn & (0x3f << 26)) != 58u << 26)
13611 abort ();
13612 insn += (14u << 26) - (58u << 26);
95f0d0d2 13613 bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset);
ba761f19
AM		 13614 r_type = R_PPC64_TOC16_LO;
13615 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13616 break;
13617
411e1bfb
AM		 13618 case R_PPC64_TOC16:
13619 case R_PPC64_TOC16_LO:
13620 case R_PPC64_TOC16_DS:
13621 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 13622 {
13623 /* Check for toc tls entries. */
f961d9dd 13624 unsigned char *toc_tls;
951fd09b 13625 int retval;
411e1bfb 13626
3a71aa26
AM		 13627 retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13628 &local_syms, rel, input_bfd);
951fd09b 13629 if (retval == 0)
411e1bfb
AM		 13630 return FALSE;
13631
13632 if (toc_tls)
13633 {
951fd09b 13634 tls_mask = *toc_tls;
411e1bfb
AM		 13635 if (r_type == R_PPC64_TOC16_DS
13636 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 13637 {
13638 if (tls_mask != 0
13639 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
13640 goto toctprel;
13641 }
411e1bfb 13642 else
951fd09b
AM		 13643 {
13644 /* If we found a GD reloc pair, then we might be
13645 doing a GD->IE transition. */
13646 if (retval == 2)
13647 {
13648 tls_gd = TLS_TPRELGD;
13649 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 13650 goto tls_ldgd_opt;
951fd09b
AM		 13651 }
13652 else if (retval == 3)
13653 {
13654 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
102890f0 13655 goto tls_ldgd_opt;
951fd09b
AM		 13656 }
13657 }
411e1bfb
AM		 13658 }
13659 }
13660 break;
13661
9d6ded02
AM		 13662 case R_PPC64_GOT_TPREL16_HI:
13663 case R_PPC64_GOT_TPREL16_HA:
13664 if (tls_mask != 0
13665 && (tls_mask & TLS_TPREL) == 0)
13666 {
13667 rel->r_offset -= d_offset;
95f0d0d2 13668 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
9d6ded02
AM		 13669 r_type = R_PPC64_NONE;
13670 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13671 }
13672 break;
13673
411e1bfb
AM		 13674 case R_PPC64_GOT_TPREL16_DS:
13675 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 13676 if (tls_mask != 0
13677 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 13678 {
81407a69 13679 toctprel:
95f0d0d2 13680 insn = bfd_get_32 (input_bfd,
c316a17c 13681 contents + rel->r_offset - d_offset);
411e1bfb
AM		 13682 insn &= 31 << 21;
13683 insn |= 0x3c0d0000; /* addis 0,13,0 */
95f0d0d2 13684 bfd_put_32 (input_bfd, insn,
c316a17c 13685 contents + rel->r_offset - d_offset);
411e1bfb 13686 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 13687 if (toc_symndx != 0)
13688 {
13689 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 13690 rel->r_addend = toc_addend;
0d4792f7
AM		 13691 /* We changed the symbol. Start over in order to
13692 get h, sym, sec etc. right. */
c316a17c 13693 goto again;
0d4792f7
AM		 13694 }
13695 else
13696 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13697 }
13698 break;
13699
13700 case R_PPC64_TLS:
951fd09b
AM		 13701 if (tls_mask != 0
13702 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 13703 {
95f0d0d2 13704 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2d0f3896
AM		 13705 insn = _bfd_elf_ppc_at_tls_transform (insn, 13);
13706 if (insn == 0)
411e1bfb 13707 abort ();
95f0d0d2 13708 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
411e1bfb 13709 /* Was PPC64_TLS which sits on insn boundary, now
4fe5ca5b
GM		 13710 PPC64_TPREL16_LO which is at low-order half-word. */
13711 rel->r_offset += d_offset;
0d4792f7
AM		 13712 r_type = R_PPC64_TPREL16_LO;
13713 if (toc_symndx != 0)
13714 {
13715 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 13716 rel->r_addend = toc_addend;
0d4792f7
AM		 13717 /* We changed the symbol. Start over in order to
13718 get h, sym, sec etc. right. */
c316a17c 13719 goto again;
0d4792f7
AM		 13720 }
13721 else
13722 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13723 }
13724 break;
13725
411e1bfb
AM		 13726 case R_PPC64_GOT_TLSGD16_HI:
13727 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 13728 tls_gd = TLS_TPRELGD;
13729 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13730 goto tls_gdld_hi;
13731 break;
13732
411e1bfb
AM		 13733 case R_PPC64_GOT_TLSLD16_HI:
13734 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 13735 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 13736 {
951fd09b
AM		 13737 tls_gdld_hi:
13738 if ((tls_mask & tls_gd) != 0)
13739 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13740 + R_PPC64_GOT_TPREL16_DS);
13741 else
411e1bfb 13742 {
4fe5ca5b 13743 rel->r_offset -= d_offset;
95f0d0d2 13744 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
951fd09b 13745 r_type = R_PPC64_NONE;
411e1bfb 13746 }
951fd09b 13747 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13748 }
13749 break;
13750
951fd09b
AM		 13751 case R_PPC64_GOT_TLSGD16:
13752 case R_PPC64_GOT_TLSGD16_LO:
13753 tls_gd = TLS_TPRELGD;
13754 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 13755 goto tls_ldgd_opt;
951fd09b 13756 break;
411e1bfb 13757
951fd09b
AM		 13758 case R_PPC64_GOT_TLSLD16:
13759 case R_PPC64_GOT_TLSLD16_LO:
13760 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13761 {
3a71aa26 13762 unsigned int insn1, insn2, insn3;
102890f0
AM		 13763 bfd_vma offset;
13764
13765 tls_ldgd_opt:
727fc41e
AM		 13766 offset = (bfd_vma) -1;
13767 /* If not using the newer R_PPC64_TLSGD/LD to mark
13768 __tls_get_addr calls, we must trust that the call
13769 stays with its arg setup insns, ie. that the next
13770 reloc is the __tls_get_addr call associated with
13771 the current reloc. Edit both insns. */
13772 if (input_section->has_tls_get_addr_call
13773 && rel + 1 < relend
13774 && branch_reloc_hash_match (input_bfd, rel + 1,
13775 htab->tls_get_addr,
13776 htab->tls_get_addr_fd))
13777 offset = rel[1].r_offset;
b86ac8e3
AM		 13778 /* We read the low GOT_TLS (or TOC16) insn because we
13779 need to keep the destination reg. It may be
13780 something other than the usual r3, and moved to r3
13781 before the call by intervening code. */
95f0d0d2 13782 insn1 = bfd_get_32 (input_bfd,
b86ac8e3 13783 contents + rel->r_offset - d_offset);
102890f0 13784 if ((tls_mask & tls_gd) != 0)
411e1bfb 13785 {
102890f0 13786 /* IE */
b86ac8e3 13787 insn1 &= (0x1f << 21) | (0x1f << 16);
102890f0
AM		 13788 insn1 |= 58 << 26; /* ld */
13789 insn2 = 0x7c636a14; /* add 3,3,13 */
727fc41e 13790 if (offset != (bfd_vma) -1)
f58d5a2d 13791 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
102890f0
AM		 13792 if ((tls_mask & TLS_EXPLICIT) == 0)
13793 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13794 + R_PPC64_GOT_TPREL16_DS);
411e1bfb 13795 else
102890f0
AM		 13796 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
13797 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13798 }
13799 else
13800 {
13801 /* LE */
b86ac8e3
AM		 13802 insn1 &= 0x1f << 21;
13803 insn1 |= 0x3c0d0000; /* addis r,13,0 */
102890f0
AM		 13804 insn2 = 0x38630000; /* addi 3,3,0 */
13805 if (tls_gd == 0)
951fd09b 13806 {
102890f0 13807 /* Was an LD reloc. */
1d483afe
AM		 13808 if (toc_symndx)
13809 sec = local_sections[toc_symndx];
13810 for (r_symndx = 0;
13811 r_symndx < symtab_hdr->sh_info;
13812 r_symndx++)
13813 if (local_sections[r_symndx] == sec)
13814 break;
13815 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 13816 r_symndx = STN_UNDEF;
102890f0 13817 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 13818 if (r_symndx != STN_UNDEF)
1d483afe
AM		 13819 rel->r_addend -= (local_syms[r_symndx].st_value
13820 + sec->output_offset
13821 + sec->output_section->vma);
951fd09b 13822 }
102890f0 13823 else if (toc_symndx != 0)
3a71aa26
AM		 13824 {
13825 r_symndx = toc_symndx;
13826 rel->r_addend = toc_addend;
13827 }
102890f0
AM		 13828 r_type = R_PPC64_TPREL16_HA;
13829 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
727fc41e
AM		 13830 if (offset != (bfd_vma) -1)
13831 {
13832 rel[1].r_info = ELF64_R_INFO (r_symndx,
13833 R_PPC64_TPREL16_LO);
13834 rel[1].r_offset = offset + d_offset;
13835 rel[1].r_addend = rel->r_addend;
13836 }
102890f0 13837 }
95f0d0d2 13838 bfd_put_32 (input_bfd, insn1,
3a71aa26 13839 contents + rel->r_offset - d_offset);
727fc41e
AM		 13840 if (offset != (bfd_vma) -1)
13841 {
95f0d0d2 13842 insn3 = bfd_get_32 (input_bfd,
727fc41e
AM		 13843 contents + offset + 4);
13844 if (insn3 == NOP
13845 || insn3 == CROR_151515 || insn3 == CROR_313131)
13846 {
13847 rel[1].r_offset += 4;
95f0d0d2 13848 bfd_put_32 (input_bfd, insn2, contents + offset + 4);
727fc41e
AM		 13849 insn2 = NOP;
13850 }
95f0d0d2 13851 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e
AM		 13852 }
13853 if ((tls_mask & tls_gd) == 0
13854 && (tls_gd == 0 || toc_symndx != 0))
13855 {
13856 /* We changed the symbol. Start over in order
13857 to get h, sym, sec etc. right. */
c316a17c 13858 goto again;
727fc41e
AM		 13859 }
13860 }
13861 break;
13862
13863 case R_PPC64_TLSGD:
13864 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13865 {
13866 unsigned int insn2, insn3;
13867 bfd_vma offset = rel->r_offset;
13868
13869 if ((tls_mask & TLS_TPRELGD) != 0)
13870 {
13871 /* IE */
13872 r_type = R_PPC64_NONE;
13873 insn2 = 0x7c636a14; /* add 3,3,13 */
13874 }
13875 else
13876 {
13877 /* LE */
13878 if (toc_symndx != 0)
13879 {
13880 r_symndx = toc_symndx;
13881 rel->r_addend = toc_addend;
13882 }
13883 r_type = R_PPC64_TPREL16_LO;
13884 rel->r_offset = offset + d_offset;
13885 insn2 = 0x38630000; /* addi 3,3,0 */
13886 }
13887 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13888 /* Zap the reloc on the _tls_get_addr call too. */
13889 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 13890 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
95f0d0d2 13891 insn3 = bfd_get_32 (input_bfd,
3a71aa26 13892 contents + offset + 4);
102890f0
AM		 13893 if (insn3 == NOP
13894 || insn3 == CROR_151515 || insn3 == CROR_313131)
13895 {
727fc41e 13896 rel->r_offset += 4;
95f0d0d2 13897 bfd_put_32 (input_bfd, insn2, contents + offset + 4);
3a71aa26 13898 insn2 = NOP;
102890f0 13899 }
95f0d0d2 13900 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 13901 if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0)
c316a17c 13902 goto again;
411e1bfb 13903 }
411e1bfb
AM		 13904 break;
13905
727fc41e
AM		 13906 case R_PPC64_TLSLD:
13907 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13908 {
13909 unsigned int insn2, insn3;
13910 bfd_vma offset = rel->r_offset;
13911
13912 if (toc_symndx)
13913 sec = local_sections[toc_symndx];
13914 for (r_symndx = 0;
13915 r_symndx < symtab_hdr->sh_info;
13916 r_symndx++)
13917 if (local_sections[r_symndx] == sec)
13918 break;
13919 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 13920 r_symndx = STN_UNDEF;
727fc41e 13921 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 13922 if (r_symndx != STN_UNDEF)
727fc41e
AM		 13923 rel->r_addend -= (local_syms[r_symndx].st_value
13924 + sec->output_offset
13925 + sec->output_section->vma);
13926
13927 r_type = R_PPC64_TPREL16_LO;
13928 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13929 rel->r_offset = offset + d_offset;
13930 /* Zap the reloc on the _tls_get_addr call too. */
13931 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 13932 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
727fc41e 13933 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 13934 insn3 = bfd_get_32 (input_bfd,
727fc41e
AM		 13935 contents + offset + 4);
13936 if (insn3 == NOP
13937 || insn3 == CROR_151515 || insn3 == CROR_313131)
13938 {
13939 rel->r_offset += 4;
95f0d0d2 13940 bfd_put_32 (input_bfd, insn2, contents + offset + 4);
727fc41e
AM		 13941 insn2 = NOP;
13942 }
95f0d0d2 13943 bfd_put_32 (input_bfd, insn2, contents + offset);
c316a17c 13944 goto again;
727fc41e
AM		 13945 }
13946 break;
13947
411e1bfb 13948 case R_PPC64_DTPMOD64:
951fd09b
AM		 13949 if (rel + 1 < relend
13950 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
13951 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 13952 {
951fd09b
AM		 13953 if ((tls_mask & TLS_GD) == 0)
13954 {
13955 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
13956 if ((tls_mask & TLS_TPRELGD) != 0)
13957 r_type = R_PPC64_TPREL64;
13958 else
13959 {
4ce794b7 13960 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 13961 r_type = R_PPC64_NONE;
13962 }
13963 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13964 }
13965 }
13966 else
13967 {
13968 if ((tls_mask & TLS_LD) == 0)
411e1bfb 13969 {
4ce794b7 13970 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 13971 r_type = R_PPC64_NONE;
951fd09b 13972 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 13973 }
411e1bfb
AM		 13974 }
13975 break;
13976
13977 case R_PPC64_TPREL64:
951fd09b 13978 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 13979 {
13980 r_type = R_PPC64_NONE;
13981 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13982 }
13983 break;
52a82034 13984
006589cf
AM		 13985 case R_PPC64_ENTRY:
13986 relocation = TOCstart + htab->sec_info[input_section->id].toc_off;
13987 if (!bfd_link_pic (info)
13988 && !info->traditional_format
13989 && relocation + 0x80008000 <= 0xffffffff)
13990 {
13991 unsigned int insn1, insn2;
13992
13993 insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset);
13994 insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
13995 if ((insn1 & ~0xfffc) == LD_R2_0R12
13996 && insn2 == ADD_R2_R2_R12)
13997 {
95f0d0d2 13998 bfd_put_32 (input_bfd,
006589cf
AM		 13999 LIS_R2 + PPC_HA (relocation),
14000 contents + rel->r_offset);
95f0d0d2 14001 bfd_put_32 (input_bfd,
006589cf
AM		 14002 ADDI_R2_R2 + PPC_LO (relocation),
14003 contents + rel->r_offset + 4);
14004 }
14005 }
14006 else
14007 {
14008 relocation -= (rel->r_offset
14009 + input_section->output_offset
14010 + input_section->output_section->vma);
14011 if (relocation + 0x80008000 <= 0xffffffff)
14012 {
14013 unsigned int insn1, insn2;
14014
14015 insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset);
14016 insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
14017 if ((insn1 & ~0xfffc) == LD_R2_0R12
14018 && insn2 == ADD_R2_R2_R12)
14019 {
95f0d0d2 14020 bfd_put_32 (input_bfd,
006589cf
AM		 14021 ADDIS_R2_R12 + PPC_HA (relocation),
14022 contents + rel->r_offset);
95f0d0d2 14023 bfd_put_32 (input_bfd,
006589cf
AM		 14024 ADDI_R2_R2 + PPC_LO (relocation),
14025 contents + rel->r_offset + 4);
14026 }
14027 }
14028 }
14029 break;
14030
52a82034
AM		 14031 case R_PPC64_REL16_HA:
14032 /* If we are generating a non-PIC executable, edit
14033 . 0: addis 2,12,.TOC.-0b@ha
14034 . addi 2,2,.TOC.-0b@l
14035 used by ELFv2 global entry points to set up r2, to
14036 . lis 2,.TOC.@ha
14037 . addi 2,2,.TOC.@l
14038 if .TOC. is in range. */
0e1862bb 14039 if (!bfd_link_pic (info)
810d4e75 14040 && !info->traditional_format
006589cf 14041 && !htab->opd_abi
4f038ee5 14042 && rel->r_addend == d_offset
52a82034
AM		 14043 && h != NULL && &h->elf == htab->elf.hgot
14044 && rel + 1 < relend
14045 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO)
14046 && rel[1].r_offset == rel->r_offset + 4
14047 && rel[1].r_addend == rel->r_addend + 4
14048 && relocation + 0x80008000 <= 0xffffffff)
14049 {
14050 unsigned int insn1, insn2;
14051 bfd_vma offset = rel->r_offset - d_offset;
95f0d0d2
AM		 14052 insn1 = bfd_get_32 (input_bfd, contents + offset);
14053 insn2 = bfd_get_32 (input_bfd, contents + offset + 4);
006589cf
AM		 14054 if ((insn1 & 0xffff0000) == ADDIS_R2_R12
14055 && (insn2 & 0xffff0000) == ADDI_R2_R2)
52a82034
AM		 14056 {
14057 r_type = R_PPC64_ADDR16_HA;
14058 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
14059 rel->r_addend -= d_offset;
14060 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO);
14061 rel[1].r_addend -= d_offset + 4;
95f0d0d2 14062 bfd_put_32 (input_bfd, LIS_R2, contents + offset);
52a82034
AM		 14063 }
14064 }
14065 break;
411e1bfb
AM		 14066 }
14067
14068 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 14069 insn = 0;
b25116a9
AM		 14070 max_br_offset = 1 << 25;
14071 addend = rel->r_addend;
bc30df16 14072 reloc_dest = DEST_NORMAL;
65f38f15 14073 switch (r_type)
5bd4f169
AM		 14074 {
14075 default:
65f38f15 14076 break;
5bd4f169 14077
3b421ab3
AM		 14078 case R_PPC64_TOCSAVE:
14079 if (relocation + addend == (rel->r_offset
14080 + input_section->output_offset
14081 + input_section->output_section->vma)
14082 && tocsave_find (htab, NO_INSERT,
14083 &local_syms, rel, input_bfd))
14084 {
14085 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
14086 if (insn == NOP
14087 || insn == CROR_151515 || insn == CROR_313131)
a078d95a
AM		 14088 bfd_put_32 (input_bfd,
14089 STD_R2_0R1 + STK_TOC (htab),
3b421ab3
AM		 14090 contents + rel->r_offset);
14091 }
14092 break;
14093
65f38f15
AM		 14094 /* Branch taken prediction relocations. */
14095 case R_PPC64_ADDR14_BRTAKEN:
14096 case R_PPC64_REL14_BRTAKEN:
cedb70c5 14097 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
1a0670f3 14098 /* Fall through. */
65f38f15 14099
86c76c7b 14100 /* Branch not taken prediction relocations. */
65f38f15
AM		 14101 case R_PPC64_ADDR14_BRNTAKEN:
14102 case R_PPC64_REL14_BRNTAKEN:
95f0d0d2 14103 insn |= bfd_get_32 (input_bfd,
411e1bfb 14104 contents + rel->r_offset) & ~(0x01 << 21);
1a0670f3 14105 /* Fall through. */
86c76c7b 14106
b25116a9
AM		 14107 case R_PPC64_REL14:
14108 max_br_offset = 1 << 15;
1a0670f3 14109 /* Fall through. */
5bd4f169 14110
65f38f15 14111 case R_PPC64_REL24:
ad8e1ba5
AM		 14112 /* Calls to functions with a different TOC, such as calls to
14113 shared objects, need to alter the TOC pointer. This is
14114 done using a linkage stub. A REL24 branching to these
14115 linkage stubs needs to be followed by a nop, as the nop
14116 will be replaced with an instruction to restore the TOC
14117 base pointer. */
8387904d 14118 fdh = h;
b31867b6
AM		 14119 if (h != NULL
14120 && h->oh != NULL
14121 && h->oh->is_func_descriptor)
14122 fdh = ppc_follow_link (h->oh);
31c76678
DK		 14123 stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel,
14124 htab);
6abec6bc 14125 if (stub_entry != NULL
ad8e1ba5 14126 && (stub_entry->stub_type == ppc_stub_plt_call
794e51c0 14127 || stub_entry->stub_type == ppc_stub_plt_call_r2save
ad8e1ba5
AM		 14128 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
14129 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 14130 {
b25116a9 14131 bfd_boolean can_plt_call = FALSE;
721956f4 14132
ba8ca3e7
AM		 14133 /* All of these stubs will modify r2, so there must be a
14134 branch and link followed by a nop. The nop is
14135 replaced by an insn to restore r2. */
eea6121a 14136 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 14137 {
ba8ca3e7
AM		 14138 unsigned long br;
14139
14140 br = bfd_get_32 (input_bfd,
14141 contents + rel->r_offset);
14142 if ((br & 1) != 0)
41bd81ab 14143 {
ba8ca3e7
AM		 14144 unsigned long nop;
14145
14146 nop = bfd_get_32 (input_bfd,
14147 contents + rel->r_offset + 4);
14148 if (nop == NOP
14149 || nop == CROR_151515 || nop == CROR_313131)
a7f2871e 14150 {
ba8ca3e7
AM		 14151 if (h != NULL
14152 && (h == htab->tls_get_addr_fd
14153 || h == htab->tls_get_addr)
7c9cf415 14154 && htab->params->tls_get_addr_opt)
ba8ca3e7
AM		 14155 {
14156 /* Special stub used, leave nop alone. */
14157 }
14158 else
a078d95a
AM		 14159 bfd_put_32 (input_bfd,
14160 LD_R2_0R1 + STK_TOC (htab),
ba8ca3e7
AM		 14161 contents + rel->r_offset + 4);
14162 can_plt_call = TRUE;
a7f2871e 14163 }
41bd81ab 14164 }
5bd4f169 14165 }
721956f4 14166
ba8ca3e7 14167 if (!can_plt_call && h != NULL)
721956f4 14168 {
ba8ca3e7
AM		 14169 const char *name = h->elf.root.root.string;
14170
14171 if (*name == '.')
14172 ++name;
14173
14174 if (strncmp (name, "__libc_start_main", 17) == 0
14175 && (name[17] == 0 || name[17] == '@'))
6ab189d5 14176 {
ba8ca3e7
AM		 14177 /* Allow crt1 branch to go via a toc adjusting
14178 stub. Other calls that never return could do
14179 the same, if we could detect such. */
b25116a9 14180 can_plt_call = TRUE;
6ab189d5 14181 }
ba8ca3e7
AM		 14182 }
14183
14184 if (!can_plt_call)
14185 {
14186 /* g++ as of 20130507 emits self-calls without a
14187 following nop. This is arguably wrong since we
14188 have conflicting information. On the one hand a
14189 global symbol and on the other a local call
14190 sequence, but don't error for this special case.
14191 It isn't possible to cheaply verify we have
14192 exactly such a call. Allow all calls to the same
14193 section. */
14194 asection *code_sec = sec;
14195
14196 if (get_opd_info (sec) != NULL)
ad8e1ba5 14197 {
ba8ca3e7
AM		 14198 bfd_vma off = (relocation + addend
14199 - sec->output_section->vma
14200 - sec->output_offset);
bc30df16 14201
ba8ca3e7 14202 opd_entry_value (sec, off, &code_sec, NULL, FALSE);
ad8e1ba5 14203 }
ba8ca3e7
AM		 14204 if (code_sec == input_section)
14205 can_plt_call = TRUE;
14206 }
14207
14208 if (!can_plt_call)
14209 {
4805fc55
AM		 14210 if (stub_entry->stub_type == ppc_stub_plt_call
14211 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
14212 info->callbacks->einfo
695344c0 14213 /* xgettext:c-format */
4805fc55
AM		 14214 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
14215 "recompile with -fPIC\n"),
14216 input_bfd, input_section, rel->r_offset, sym_name);
14217 else
14218 info->callbacks->einfo
695344c0 14219 /* xgettext:c-format */
4805fc55
AM		 14220 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
14221 "(-mcmodel=small toc adjust stub)\n"),
14222 input_bfd, input_section, rel->r_offset, sym_name);
ba8ca3e7
AM		 14223
14224 bfd_set_error (bfd_error_bad_value);
14225 ret = FALSE;
721956f4
AM		 14226 }
14227
b25116a9 14228 if (can_plt_call
794e51c0
AM		 14229 && (stub_entry->stub_type == ppc_stub_plt_call
14230 || stub_entry->stub_type == ppc_stub_plt_call_r2save))
b25116a9
AM		 14231 unresolved_reloc = FALSE;
14232 }
14233
6abec6bc
AM		 14234 if ((stub_entry == NULL
14235 || stub_entry->stub_type == ppc_stub_long_branch
14236 || stub_entry->stub_type == ppc_stub_plt_branch)
8387904d
AM		 14237 && get_opd_info (sec) != NULL)
14238 {
14239 /* The branch destination is the value of the opd entry. */
4cc603a5
AM		 14240 bfd_vma off = (relocation + addend
14241 - sec->output_section->vma
14242 - sec->output_offset);
aef36ac1 14243 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE);
8387904d
AM		 14244 if (dest != (bfd_vma) -1)
14245 {
14246 relocation = dest;
14247 addend = 0;
bc30df16 14248 reloc_dest = DEST_OPD;
8387904d
AM		 14249 }
14250 }
14251
b25116a9
AM		 14252 /* If the branch is out of reach we ought to have a long
14253 branch stub. */
14254 from = (rel->r_offset
14255 + input_section->output_offset
14256 + input_section->output_section->vma);
14257
6911b7dc
AM		 14258 relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh
14259 ? fdh->elf.other
14260 : sym->st_other);
14261
6abec6bc
AM		 14262 if (stub_entry != NULL
14263 && (stub_entry->stub_type == ppc_stub_long_branch
14264 || stub_entry->stub_type == ppc_stub_plt_branch)
14265 && (r_type == R_PPC64_ADDR14_BRTAKEN
14266 || r_type == R_PPC64_ADDR14_BRNTAKEN
14267 || (relocation + addend - from + max_br_offset
14268 < 2 * max_br_offset)))
14269 /* Don't use the stub if this branch is in range. */
14270 stub_entry = NULL;
b25116a9
AM		 14271
14272 if (stub_entry != NULL)
14273 {
14274 /* Munge up the value and addend so that we call the stub
14275 rather than the procedure directly. */
a4b6fadd
AM		 14276 asection *stub_sec = stub_entry->group->stub_sec;
14277
14278 if (stub_entry->stub_type == ppc_stub_save_res)
14279 relocation += (stub_sec->output_offset
14280 + stub_sec->output_section->vma
14281 + stub_sec->size - htab->sfpr->size
14282 - htab->sfpr->output_offset
14283 - htab->sfpr->output_section->vma);
14284 else
14285 relocation = (stub_entry->stub_offset
14286 + stub_sec->output_offset
14287 + stub_sec->output_section->vma);
b25116a9 14288 addend = 0;
bc30df16 14289 reloc_dest = DEST_STUB;
3b421ab3 14290
794e51c0
AM		 14291 if ((stub_entry->stub_type == ppc_stub_plt_call
14292 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
14293 && (ALWAYS_EMIT_R2SAVE
14294 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
3b421ab3
AM		 14295 && rel + 1 < relend
14296 && rel[1].r_offset == rel->r_offset + 4
14297 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE)
14298 relocation += 4;
b25116a9
AM		 14299 }
14300
14301 if (insn != 0)
14302 {
794e51c0 14303 if (is_isa_v2)
721956f4 14304 {
b25116a9
AM		 14305 /* Set 'a' bit. This is 0b00010 in BO field for branch
14306 on CR(BI) insns (BO == 001at or 011at), and 0b01000
14307 for branch on CTR insns (BO == 1a00t or 1a01t). */
14308 if ((insn & (0x14 << 21)) == (0x04 << 21))
14309 insn |= 0x02 << 21;
14310 else if ((insn & (0x14 << 21)) == (0x10 << 21))
14311 insn |= 0x08 << 21;
14312 else
14313 break;
14314 }
14315 else
14316 {
14317 /* Invert 'y' bit if not the default. */
4cc603a5 14318 if ((bfd_signed_vma) (relocation + addend - from) < 0)
b25116a9 14319 insn ^= 0x01 << 21;
721956f4 14320 }
b25116a9 14321
95f0d0d2 14322 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
5bd4f169 14323 }
e86ce104 14324
06da1e8e
AM		 14325 /* NOP out calls to undefined weak functions.
14326 We can thus call a weak function without first
14327 checking whether the function is defined. */
b25116a9 14328 else if (h != NULL
039b3fef 14329 && h->elf.root.type == bfd_link_hash_undefweak
766bc656 14330 && h->elf.dynindx == -1
b25116a9
AM		 14331 && r_type == R_PPC64_REL24
14332 && relocation == 0
4cc603a5 14333 && addend == 0)
e86ce104 14334 {
95f0d0d2 14335 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
c316a17c 14336 goto copy_reloc;
e86ce104 14337 }
65f38f15
AM		 14338 break;
14339 }
5bd4f169 14340
65f38f15 14341 /* Set `addend'. */
411e1bfb 14342 tls_type = 0;
65f38f15
AM		 14343 switch (r_type)
14344 {
14345 default:
25f53a85 14346 info->callbacks->einfo
695344c0 14347 /* xgettext:c-format */
bc30df16 14348 (_("%P: %B: unknown relocation type %d for `%T'\n"),
d003868e 14349 input_bfd, (int) r_type, sym_name);
5bd4f169 14350
65f38f15 14351 bfd_set_error (bfd_error_bad_value);
b34976b6 14352 ret = FALSE;
c316a17c 14353 goto copy_reloc;
5bd4f169 14354
65f38f15 14355 case R_PPC64_NONE:
411e1bfb 14356 case R_PPC64_TLS:
727fc41e
AM		 14357 case R_PPC64_TLSGD:
14358 case R_PPC64_TLSLD:
3b421ab3 14359 case R_PPC64_TOCSAVE:
04c9666a
AM		 14360 case R_PPC64_GNU_VTINHERIT:
14361 case R_PPC64_GNU_VTENTRY:
006589cf 14362 case R_PPC64_ENTRY:
c316a17c 14363 goto copy_reloc;
5bd4f169
AM		 14364
14365 /* GOT16 relocations. Like an ADDR16 using the symbol's
14366 address in the GOT as relocation value instead of the
411e1bfb 14367 symbol's value itself. Also, create a GOT entry for the
5bd4f169 14368 symbol and put the symbol value there. */
411e1bfb
AM		 14369 case R_PPC64_GOT_TLSGD16:
14370 case R_PPC64_GOT_TLSGD16_LO:
14371 case R_PPC64_GOT_TLSGD16_HI:
14372 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 14373 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 14374 goto dogot;
14375
14376 case R_PPC64_GOT_TLSLD16:
14377 case R_PPC64_GOT_TLSLD16_LO:
14378 case R_PPC64_GOT_TLSLD16_HI:
14379 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 14380 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 14381 goto dogot;
14382
14383 case R_PPC64_GOT_TPREL16_DS:
14384 case R_PPC64_GOT_TPREL16_LO_DS:
14385 case R_PPC64_GOT_TPREL16_HI:
14386 case R_PPC64_GOT_TPREL16_HA:
14387 tls_type = TLS_TLS | TLS_TPREL;
14388 goto dogot;
14389
14390 case R_PPC64_GOT_DTPREL16_DS:
14391 case R_PPC64_GOT_DTPREL16_LO_DS:
14392 case R_PPC64_GOT_DTPREL16_HI:
14393 case R_PPC64_GOT_DTPREL16_HA:
14394 tls_type = TLS_TLS | TLS_DTPREL;
14395 goto dogot;
14396
65f38f15
AM		 14397 case R_PPC64_GOT16:
14398 case R_PPC64_GOT16_LO:
14399 case R_PPC64_GOT16_HI:
14400 case R_PPC64_GOT16_HA:
14401 case R_PPC64_GOT16_DS:
14402 case R_PPC64_GOT16_LO_DS:
411e1bfb 14403 dogot:
5bd4f169
AM		 14404 {
14405 /* Relocation is to the entry for this symbol in the global
14406 offset table. */
e717da7e 14407 asection *got;
d881513a 14408 bfd_vma *offp;
5bd4f169 14409 bfd_vma off;
d881513a 14410 unsigned long indx = 0;
927be08e 14411 struct got_entry *ent;
65f38f15 14412
d881513a
AM		 14413 if (tls_type == (TLS_TLS | TLS_LD)
14414 && (h == NULL
f5385ebf 14415 || !h->elf.def_dynamic))
927be08e 14416 ent = ppc64_tlsld_got (input_bfd);
411e1bfb 14417 else
5bd4f169 14418 {
5bd4f169 14419
d881513a
AM		 14420 if (h != NULL)
14421 {
14422 bfd_boolean dyn = htab->elf.dynamic_sections_created;
0e1862bb 14423 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info),
039b3fef 14424 &h->elf)
0e1862bb 14425 || (bfd_link_pic (info)
afe397ea 14426 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM		 14427 /* This is actually a static link, or it is a
14428 -Bsymbolic link and the symbol is defined
14429 locally, or the symbol was forced to be local
14430 because of a version file. */
14431 ;
14432 else
14433 {
14acf4dc 14434 BFD_ASSERT (h->elf.dynindx != -1);
039b3fef 14435 indx = h->elf.dynindx;
d881513a
AM		 14436 unresolved_reloc = FALSE;
14437 }
039b3fef 14438 ent = h->elf.got.glist;
d881513a 14439 }
411e1bfb 14440 else
5bd4f169 14441 {
d881513a
AM		 14442 if (local_got_ents == NULL)
14443 abort ();
14444 ent = local_got_ents[r_symndx];
5bd4f169 14445 }
d881513a
AM		 14446
14447 for (; ent != NULL; ent = ent->next)
31c76678 14448 if (ent->addend == orig_rel.r_addend
e717da7e 14449 && ent->owner == input_bfd
d881513a
AM		 14450 && ent->tls_type == tls_type)
14451 break;
5bd4f169 14452 }
411e1bfb 14453
927be08e
AM		 14454 if (ent == NULL)
14455 abort ();
14456 if (ent->is_indirect)
14457 ent = ent->got.ent;
14458 offp = &ent->got.offset;
14459 got = ppc64_elf_tdata (ent->owner)->got;
e717da7e
AM		 14460 if (got == NULL)
14461 abort ();
14462
411e1bfb
AM		 14463 /* The offset must always be a multiple of 8. We use the
14464 least significant bit to record whether we have already
14465 processed this entry. */
d881513a 14466 off = *offp;
411e1bfb
AM		 14467 if ((off & 1) != 0)
14468 off &= ~1;
5bd4f169
AM		 14469 else
14470 {
411e1bfb
AM		 14471 /* Generate relocs for the dynamic linker, except in
14472 the case of TLSLD where we'll use one entry per
14473 module. */
25f23106
AM		 14474 asection *relgot;
14475 bfd_boolean ifunc;
e717da7e 14476
d881513a 14477 *offp = off | 1;
25f23106
AM		 14478 relgot = NULL;
14479 ifunc = (h != NULL
14480 ? h->elf.type == STT_GNU_IFUNC
14481 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
19e08130 14482 if (ifunc)
33e44f2e 14483 relgot = htab->elf.irelplt;
0e1862bb 14484 else if ((bfd_link_pic (info) || indx != 0)
19e08130
AM		 14485 && (h == NULL
14486 || (tls_type == (TLS_TLS | TLS_LD)
14487 && !h->elf.def_dynamic)
14488 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
14489 || h->elf.root.type != bfd_link_hash_undefweak))
14490 relgot = ppc64_elf_tdata (ent->owner)->relgot;
25f23106 14491 if (relgot != NULL)
5bd4f169 14492 {
e717da7e
AM		 14493 outrel.r_offset = (got->output_section->vma
14494 + got->output_offset
411e1bfb 14495 + off);
4cc603a5 14496 outrel.r_addend = addend;
d881513a 14497 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 14498 {
411e1bfb 14499 outrel.r_addend = 0;
e515b051 14500 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 14501 if (tls_type == (TLS_TLS | TLS_GD))
14502 {
e717da7e
AM		 14503 loc = relgot->contents;
14504 loc += (relgot->reloc_count++
d881513a
AM		 14505 * sizeof (Elf64_External_Rela));
14506 bfd_elf64_swap_reloca_out (output_bfd,
14507 &outrel, loc);
e515b051 14508 outrel.r_offset += 8;
4cc603a5 14509 outrel.r_addend = addend;
d881513a
AM		 14510 outrel.r_info
14511 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 14512 }
411e1bfb 14513 }
951fd09b 14514 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 14515 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 14516 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 14517 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
25f23106
AM		 14518 else if (indx != 0)
14519 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
14520 else
81407a69 14521 {
25f23106
AM		 14522 if (ifunc)
14523 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14524 else
14525 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 14526
14527 /* Write the .got section contents for the sake
14528 of prelink. */
e717da7e 14529 loc = got->contents + off;
23fbd6fa
JJ		 14530 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
14531 loc);
81407a69 14532 }
81407a69
AM		 14533
14534 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 14535 {
14536 outrel.r_addend += relocation;
14537 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM		 14538 {
14539 if (htab->elf.tls_sec == NULL)
14540 outrel.r_addend = 0;
14541 else
14542 outrel.r_addend -= htab->elf.tls_sec->vma;
14543 }
e515b051 14544 }
e717da7e
AM		 14545 loc = relgot->contents;
14546 loc += (relgot->reloc_count++
411e1bfb
AM		 14547 * sizeof (Elf64_External_Rela));
14548 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14549 }
14550
ad8e1ba5 14551 /* Init the .got section contents here if we're not
81407a69 14552 emitting a reloc. */
d881513a 14553 else
411e1bfb 14554 {
4cc603a5 14555 relocation += addend;
7b609f53
AM		 14556 if (tls_type == (TLS_TLS | TLS_LD))
14557 relocation = 1;
14558 else if (tls_type != 0)
411e1bfb 14559 {
989f9879
AM		 14560 if (htab->elf.tls_sec == NULL)
14561 relocation = 0;
14562 else
14563 {
14564 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
14565 if (tls_type == (TLS_TLS | TLS_TPREL))
14566 relocation += DTP_OFFSET - TP_OFFSET;
14567 }
5bd4f169 14568
7b609f53
AM		 14569 if (tls_type == (TLS_TLS | TLS_GD))
14570 {
14571 bfd_put_64 (output_bfd, relocation,
e717da7e 14572 got->contents + off + 8);
7b609f53
AM		 14573 relocation = 1;
14574 }
411e1bfb 14575 }
7b609f53 14576
411e1bfb 14577 bfd_put_64 (output_bfd, relocation,
e717da7e 14578 got->contents + off);
5bd4f169
AM		 14579 }
14580 }
14581
65f38f15
AM		 14582 if (off >= (bfd_vma) -2)
14583 abort ();
14584
bf102f86 14585 relocation = got->output_section->vma + got->output_offset + off;
6f20ed8a 14586 addend = -(TOCstart + htab->sec_info[input_section->id].toc_off);
5bd4f169 14587 }
65f38f15
AM		 14588 break;
14589
14590 case R_PPC64_PLT16_HA:
14591 case R_PPC64_PLT16_HI:
14592 case R_PPC64_PLT16_LO:
14593 case R_PPC64_PLT32:
14594 case R_PPC64_PLT64:
14595 /* Relocation is to the entry for this symbol in the
14596 procedure linkage table. */
cbf95972
AM		 14597 {
14598 struct plt_entry **plt_list = NULL;
14599 if (h != NULL)
14600 plt_list = &h->elf.plt.plist;
14601 else if (local_got_ents != NULL)
14602 {
14603 struct plt_entry **local_plt = (struct plt_entry **)
14604 (local_got_ents + symtab_hdr->sh_info);
14605 unsigned char *local_got_tls_masks = (unsigned char *)
14606 (local_plt + symtab_hdr->sh_info);
14607 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
14608 plt_list = local_plt + r_symndx;
14609 }
14610 if (plt_list)
14611 {
14612 struct plt_entry *ent;
65f38f15 14613
cbf95972
AM		 14614 for (ent = *plt_list; ent != NULL; ent = ent->next)
14615 if (ent->plt.offset != (bfd_vma) -1
14616 && ent->addend == orig_rel.r_addend)
14617 {
14618 asection *plt;
14619
14620 plt = htab->elf.splt;
14621 if (!htab->elf.dynamic_sections_created
14622 || h == NULL
14623 || h->elf.dynindx == -1)
14624 plt = htab->elf.iplt;
14625 relocation = (plt->output_section->vma
14626 + plt->output_offset
14627 + ent->plt.offset);
14628 addend = 0;
14629 unresolved_reloc = FALSE;
14630 break;
14631 }
14632 }
14633 }
65f38f15 14634 break;
5bd4f169 14635
0b13192e
AM		 14636 case R_PPC64_TOC:
14637 /* Relocation value is TOC base. */
14638 relocation = TOCstart;
cf35638d 14639 if (r_symndx == STN_UNDEF)
6f20ed8a 14640 relocation += htab->sec_info[input_section->id].toc_off;
8517fae7
AM		 14641 else if (unresolved_reloc)
14642 ;
6f20ed8a
AM		 14643 else if (sec != NULL && sec->id < htab->sec_info_arr_size)
14644 relocation += htab->sec_info[sec->id].toc_off;
0b13192e
AM		 14645 else
14646 unresolved_reloc = TRUE;
ab96bf03 14647 goto dodyn;
0b13192e 14648
5bd4f169
AM		 14649 /* TOC16 relocs. We want the offset relative to the TOC base,
14650 which is the address of the start of the TOC plus 0x8000.
14651 The TOC consists of sections .got, .toc, .tocbss, and .plt,
14652 in this order. */
65f38f15
AM		 14653 case R_PPC64_TOC16:
14654 case R_PPC64_TOC16_LO:
14655 case R_PPC64_TOC16_HI:
14656 case R_PPC64_TOC16_DS:
14657 case R_PPC64_TOC16_LO_DS:
14658 case R_PPC64_TOC16_HA:
6f20ed8a 14659 addend -= TOCstart + htab->sec_info[input_section->id].toc_off;
5bd4f169
AM		 14660 break;
14661
14662 /* Relocate against the beginning of the section. */
65f38f15
AM		 14663 case R_PPC64_SECTOFF:
14664 case R_PPC64_SECTOFF_LO:
14665 case R_PPC64_SECTOFF_HI:
14666 case R_PPC64_SECTOFF_DS:
14667 case R_PPC64_SECTOFF_LO_DS:
14668 case R_PPC64_SECTOFF_HA:
4ce794b7 14669 if (sec != NULL)
65f38f15 14670 addend -= sec->output_section->vma;
5bd4f169
AM		 14671 break;
14672
25f23106
AM		 14673 case R_PPC64_REL16:
14674 case R_PPC64_REL16_LO:
14675 case R_PPC64_REL16_HI:
14676 case R_PPC64_REL16_HA:
a680de9a 14677 case R_PPC64_REL16DX_HA:
25f23106
AM		 14678 break;
14679
721956f4
AM		 14680 case R_PPC64_REL14:
14681 case R_PPC64_REL14_BRNTAKEN:
14682 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 14683 case R_PPC64_REL24:
14684 break;
14685
411e1bfb
AM		 14686 case R_PPC64_TPREL16:
14687 case R_PPC64_TPREL16_LO:
14688 case R_PPC64_TPREL16_HI:
14689 case R_PPC64_TPREL16_HA:
14690 case R_PPC64_TPREL16_DS:
14691 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 14692 case R_PPC64_TPREL16_HIGH:
14693 case R_PPC64_TPREL16_HIGHA:
411e1bfb
AM		 14694 case R_PPC64_TPREL16_HIGHER:
14695 case R_PPC64_TPREL16_HIGHERA:
14696 case R_PPC64_TPREL16_HIGHEST:
14697 case R_PPC64_TPREL16_HIGHESTA:
766bc656
AM		 14698 if (h != NULL
14699 && h->elf.root.type == bfd_link_hash_undefweak
14700 && h->elf.dynindx == -1)
14701 {
14702 /* Make this relocation against an undefined weak symbol
14703 resolve to zero. This is really just a tweak, since
14704 code using weak externs ought to check that they are
14705 defined before using them. */
14706 bfd_byte *p = contents + rel->r_offset - d_offset;
14707
95f0d0d2 14708 insn = bfd_get_32 (input_bfd, p);
766bc656
AM		 14709 insn = _bfd_elf_ppc_at_tprel_transform (insn, 13);
14710 if (insn != 0)
95f0d0d2 14711 bfd_put_32 (input_bfd, insn, p);
766bc656
AM		 14712 break;
14713 }
989f9879
AM		 14714 if (htab->elf.tls_sec != NULL)
14715 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
0e1862bb 14716 if (bfd_link_pic (info))
411e1bfb
AM		 14717 /* The TPREL16 relocs shouldn't really be used in shared
14718 libs as they will result in DT_TEXTREL being set, but
14719 support them anyway. */
14720 goto dodyn;
14721 break;
14722
14723 case R_PPC64_DTPREL16:
14724 case R_PPC64_DTPREL16_LO:
14725 case R_PPC64_DTPREL16_HI:
14726 case R_PPC64_DTPREL16_HA:
14727 case R_PPC64_DTPREL16_DS:
14728 case R_PPC64_DTPREL16_LO_DS:
f9c6b907
AM		 14729 case R_PPC64_DTPREL16_HIGH:
14730 case R_PPC64_DTPREL16_HIGHA:
411e1bfb
AM		 14731 case R_PPC64_DTPREL16_HIGHER:
14732 case R_PPC64_DTPREL16_HIGHERA:
14733 case R_PPC64_DTPREL16_HIGHEST:
14734 case R_PPC64_DTPREL16_HIGHESTA:
989f9879
AM		 14735 if (htab->elf.tls_sec != NULL)
14736 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 14737 break;
14738
45965137
AM		 14739 case R_PPC64_ADDR64_LOCAL:
14740 addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL
14741 ? h->elf.other
14742 : sym->st_other);
14743 break;
14744
e515b051
AM		 14745 case R_PPC64_DTPMOD64:
14746 relocation = 1;
14747 addend = 0;
14748 goto dodyn;
14749
411e1bfb 14750 case R_PPC64_TPREL64:
989f9879
AM		 14751 if (htab->elf.tls_sec != NULL)
14752 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 14753 goto dodyn;
14754
14755 case R_PPC64_DTPREL64:
989f9879
AM		 14756 if (htab->elf.tls_sec != NULL)
14757 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
1a0670f3 14758 /* Fall through. */
411e1bfb 14759
65f38f15
AM		 14760 /* Relocations that may need to be propagated if this is a
14761 dynamic object. */
04c9666a 14762 case R_PPC64_REL30:
65f38f15
AM		 14763 case R_PPC64_REL32:
14764 case R_PPC64_REL64:
14765 case R_PPC64_ADDR14:
14766 case R_PPC64_ADDR14_BRNTAKEN:
14767 case R_PPC64_ADDR14_BRTAKEN:
14768 case R_PPC64_ADDR16:
14769 case R_PPC64_ADDR16_DS:
14770 case R_PPC64_ADDR16_HA:
14771 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 14772 case R_PPC64_ADDR16_HIGH:
14773 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 14774 case R_PPC64_ADDR16_HIGHER:
14775 case R_PPC64_ADDR16_HIGHERA:
14776 case R_PPC64_ADDR16_HIGHEST:
14777 case R_PPC64_ADDR16_HIGHESTA:
14778 case R_PPC64_ADDR16_LO:
14779 case R_PPC64_ADDR16_LO_DS:
14780 case R_PPC64_ADDR24:
65f38f15
AM		 14781 case R_PPC64_ADDR32:
14782 case R_PPC64_ADDR64:
14783 case R_PPC64_UADDR16:
14784 case R_PPC64_UADDR32:
14785 case R_PPC64_UADDR64:
411e1bfb 14786 dodyn:
5d1634d7 14787 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 14788 break;
14789
41bd81ab
AM		 14790 if (NO_OPD_RELOCS && is_opd)
14791 break;
14792
8a9e8e72
AM		 14793 if (bfd_link_pic (info)
14794 ? ((h != NULL && pc_dynrelocs (h))
14795 || must_be_dyn_reloc (info, r_type))
14796 : (h != NULL
14797 ? h->dyn_relocs != NULL
d311bc8b 14798 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
65f38f15 14799 {
b34976b6 14800 bfd_boolean skip, relocate;
65f38f15 14801 asection *sreloc;
1cf1f670 14802 bfd_vma out_off;
65f38f15
AM		 14803
14804 /* When generating a dynamic object, these relocations
14805 are copied into the output file to be resolved at run
14806 time. */
14807
b34976b6
AM		 14808 skip = FALSE;
14809 relocate = FALSE;
65f38f15 14810
1cf1f670
AM		 14811 out_off = _bfd_elf_section_offset (output_bfd, info,
14812 input_section, rel->r_offset);
14813 if (out_off == (bfd_vma) -1)
b34976b6 14814 skip = TRUE;
1cf1f670 14815 else if (out_off == (bfd_vma) -2)
b34976b6 14816 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 14817 out_off += (input_section->output_section->vma
14818 + input_section->output_offset);
14819 outrel.r_offset = out_off;
411e1bfb 14820 outrel.r_addend = rel->r_addend;
65f38f15 14821
1cf1f670
AM		 14822 /* Optimize unaligned reloc use. */
14823 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
14824 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
14825 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
14826 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
14827 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
14828 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
14829 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
14830 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
14831 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
14832
65f38f15 14833 if (skip)
0bb2d96a 14834 memset (&outrel, 0, sizeof outrel);
afe397ea 14835 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM		 14836 && !is_opd
14837 && r_type != R_PPC64_TOC)
14acf4dc
MR		 14838 {
14839 BFD_ASSERT (h->elf.dynindx != -1);
14840 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
14841 }
65f38f15
AM		 14842 else
14843 {
41bd81ab
AM		 14844 /* This symbol is local, or marked to become local,
14845 or this is an opd section reloc which must point
14846 at a local function. */
65f38f15 14847 outrel.r_addend += relocation;
e86ce104 14848 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 14849 {
3fad3c7c 14850 if (is_opd && h != NULL)
afbe61cf
AM		 14851 {
14852 /* Lie about opd entries. This case occurs
14853 when building shared libraries and we
14854 reference a function in another shared
3fad3c7c
AM		 14855 lib. The same thing happens for a weak
14856 definition in an application that's
14857 overridden by a strong definition in a
14858 shared lib. (I believe this is a generic
14859 bug in binutils handling of weak syms.)
14860 In these cases we won't use the opd
1e2f5b6e 14861 entry in this lib. */
b34976b6 14862 unresolved_reloc = FALSE;
afbe61cf 14863 }
25f23106
AM		 14864 if (!is_opd
14865 && r_type == R_PPC64_ADDR64
14866 && (h != NULL
14867 ? h->elf.type == STT_GNU_IFUNC
14868 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
14869 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14870 else
14871 {
14872 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69 14873
25f23106
AM		 14874 /* We need to relocate .opd contents for ld.so.
14875 Prelink also wants simple and consistent rules
14876 for relocs. This make all RELATIVE relocs have
14877 *r_offset equal to r_addend. */
14878 relocate = TRUE;
14879 }
65f38f15
AM		 14880 }
14881 else
14882 {
14883 long indx = 0;
14884
25f23106
AM		 14885 if (h != NULL
14886 ? h->elf.type == STT_GNU_IFUNC
14887 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
14888 {
25f53a85 14889 info->callbacks->einfo
695344c0 14890 /* xgettext:c-format */
bc30df16
AM		 14891 (_("%P: %H: %s for indirect "
14892 "function `%T' unsupported\n"),
25f53a85 14893 input_bfd, input_section, rel->r_offset,
25f23106
AM		 14894 ppc64_elf_howto_table[r_type]->name,
14895 sym_name);
14896 ret = FALSE;
14897 }
cf35638d 14898 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
65f38f15
AM		 14899 ;
14900 else if (sec == NULL || sec->owner == NULL)
14901 {
14902 bfd_set_error (bfd_error_bad_value);
b34976b6 14903 return FALSE;
65f38f15
AM		 14904 }
14905 else
14906 {
14907 asection *osec;
14908
14909 osec = sec->output_section;
14910 indx = elf_section_data (osec)->dynindx;
14911
74541ad4
AM		 14912 if (indx == 0)
14913 {
14914 if ((osec->flags & SEC_READONLY) == 0
14915 && htab->elf.data_index_section != NULL)
14916 osec = htab->elf.data_index_section;
14917 else
14918 osec = htab->elf.text_index_section;
14919 indx = elf_section_data (osec)->dynindx;
14920 }
14921 BFD_ASSERT (indx != 0);
14922
65f38f15
AM		 14923 /* We are turning this relocation into one
14924 against a section symbol, so subtract out
14925 the output section's address but not the
14926 offset of the input section in the output
14927 section. */
14928 outrel.r_addend -= osec->vma;
14929 }
14930
14931 outrel.r_info = ELF64_R_INFO (indx, r_type);
14932 }
14933 }
14934
14935 sreloc = elf_section_data (input_section)->sreloc;
19e08130
AM		 14936 if (h != NULL
14937 ? h->elf.type == STT_GNU_IFUNC
14938 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
33e44f2e 14939 sreloc = htab->elf.irelplt;
65f38f15
AM		 14940 if (sreloc == NULL)
14941 abort ();
14942
dfbb6ac9
AM		 14943 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
14944 >= sreloc->size)
14945 abort ();
947216bf
AM		 14946 loc = sreloc->contents;
14947 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 14948 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14949
14950 /* If this reloc is against an external symbol, it will
14951 be computed at runtime, so there's no need to do
81407a69
AM		 14952 anything now. However, for the sake of prelink ensure
14953 that the section contents are a known value. */
65f38f15 14954 if (! relocate)
81407a69
AM		 14955 {
14956 unresolved_reloc = FALSE;
14957 /* The value chosen here is quite arbitrary as ld.so
14958 ignores section contents except for the special
14959 case of .opd where the contents might be accessed
14960 before relocation. Choose zero, as that won't
14961 cause reloc overflow. */
14962 relocation = 0;
14963 addend = 0;
14964 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
14965 to improve backward compatibility with older
14966 versions of ld. */
14967 if (r_type == R_PPC64_ADDR64)
14968 addend = outrel.r_addend;
14969 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 14970 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 14971 addend = (input_section->output_section->vma
14972 + input_section->output_offset
14973 + rel->r_offset);
81407a69 14974 }
65f38f15 14975 }
5bd4f169
AM		 14976 break;
14977
65f38f15
AM		 14978 case R_PPC64_COPY:
14979 case R_PPC64_GLOB_DAT:
14980 case R_PPC64_JMP_SLOT:
25f23106 14981 case R_PPC64_JMP_IREL:
65f38f15
AM		 14982 case R_PPC64_RELATIVE:
14983 /* We shouldn't ever see these dynamic relocs in relocatable
14984 files. */
ae9a127f 14985 /* Fall through. */
65f38f15
AM		 14986
14987 case R_PPC64_PLTGOT16:
14988 case R_PPC64_PLTGOT16_DS:
14989 case R_PPC64_PLTGOT16_HA:
14990 case R_PPC64_PLTGOT16_HI:
14991 case R_PPC64_PLTGOT16_LO:
14992 case R_PPC64_PLTGOT16_LO_DS:
14993 case R_PPC64_PLTREL32:
14994 case R_PPC64_PLTREL64:
14995 /* These ones haven't been implemented yet. */
14996
25f53a85 14997 info->callbacks->einfo
695344c0 14998 /* xgettext:c-format */
bc30df16 14999 (_("%P: %B: %s is not supported for `%T'\n"),
d003868e 15000 input_bfd,
4ce794b7 15001 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 15002
15003 bfd_set_error (bfd_error_invalid_operation);
b34976b6 15004 ret = FALSE;
c316a17c 15005 goto copy_reloc;
65f38f15 15006 }
5bd4f169 15007
67f0cbdb
AM		 15008 /* Multi-instruction sequences that access the TOC can be
15009 optimized, eg. addis ra,r2,0; addi rb,ra,x;
15010 to nop; addi rb,r2,x; */
15011 switch (r_type)
15012 {
15013 default:
15014 break;
15015
15016 case R_PPC64_GOT_TLSLD16_HI:
15017 case R_PPC64_GOT_TLSGD16_HI:
15018 case R_PPC64_GOT_TPREL16_HI:
15019 case R_PPC64_GOT_DTPREL16_HI:
15020 case R_PPC64_GOT16_HI:
15021 case R_PPC64_TOC16_HI:
15022 /* These relocs would only be useful if building up an
15023 offset to later add to r2, perhaps in an indexed
15024 addressing mode instruction. Don't try to optimize.
15025 Unfortunately, the possibility of someone building up an
15026 offset like this or even with the HA relocs, means that
15027 we need to check the high insn when optimizing the low
15028 insn. */
15029 break;
15030
15031 case R_PPC64_GOT_TLSLD16_HA:
15032 case R_PPC64_GOT_TLSGD16_HA:
15033 case R_PPC64_GOT_TPREL16_HA:
15034 case R_PPC64_GOT_DTPREL16_HA:
15035 case R_PPC64_GOT16_HA:
15036 case R_PPC64_TOC16_HA:
98528052 15037 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
560c8763 15038 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
98528052
AM		 15039 {
15040 bfd_byte *p = contents + (rel->r_offset & ~3);
15041 bfd_put_32 (input_bfd, NOP, p);
15042 }
67f0cbdb
AM		 15043 break;
15044
15045 case R_PPC64_GOT_TLSLD16_LO:
15046 case R_PPC64_GOT_TLSGD16_LO:
15047 case R_PPC64_GOT_TPREL16_LO_DS:
15048 case R_PPC64_GOT_DTPREL16_LO_DS:
15049 case R_PPC64_GOT16_LO:
15050 case R_PPC64_GOT16_LO_DS:
15051 case R_PPC64_TOC16_LO:
15052 case R_PPC64_TOC16_LO_DS:
98528052 15053 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
560c8763 15054 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
67f0cbdb
AM		 15055 {
15056 bfd_byte *p = contents + (rel->r_offset & ~3);
15057 insn = bfd_get_32 (input_bfd, p);
560c8763
AM		 15058 if ((insn & (0x3f << 26)) == 12u << 26 /* addic */)
15059 {
15060 /* Transform addic to addi when we change reg. */
15061 insn &= ~((0x3f << 26) | (0x1f << 16));
15062 insn |= (14u << 26) | (2 << 16);
15063 }
15064 else
67f0cbdb 15065 {
98528052
AM		 15066 insn &= ~(0x1f << 16);
15067 insn |= 2 << 16;
67f0cbdb 15068 }
560c8763 15069 bfd_put_32 (input_bfd, insn, p);
67f0cbdb
AM		 15070 }
15071 break;
15072 }
15073
65f38f15 15074 /* Do any further special processing. */
b80eed39 15075 howto = ppc64_elf_howto_table[(int) r_type];
65f38f15
AM		 15076 switch (r_type)
15077 {
15078 default:
15079 break;
15080
25f23106 15081 case R_PPC64_REL16_HA:
a680de9a 15082 case R_PPC64_REL16DX_HA:
f9c6b907
AM		 15083 case R_PPC64_ADDR16_HA:
15084 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 15085 case R_PPC64_ADDR16_HIGHERA:
15086 case R_PPC64_ADDR16_HIGHESTA:
65f38f15
AM		 15087 case R_PPC64_TOC16_HA:
15088 case R_PPC64_SECTOFF_HA:
411e1bfb 15089 case R_PPC64_TPREL16_HA:
f9c6b907 15090 case R_PPC64_TPREL16_HIGHA:
411e1bfb 15091 case R_PPC64_TPREL16_HIGHERA:
411e1bfb 15092 case R_PPC64_TPREL16_HIGHESTA:
f9c6b907
AM		 15093 case R_PPC64_DTPREL16_HA:
15094 case R_PPC64_DTPREL16_HIGHA:
411e1bfb 15095 case R_PPC64_DTPREL16_HIGHERA:
411e1bfb 15096 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 15097 /* It's just possible that this symbol is a weak symbol
15098 that's not actually defined anywhere. In that case,
15099 'sec' would be NULL, and we should leave the symbol
15100 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 15101 if (sec == NULL)
15102 break;
1a0670f3 15103 /* Fall through. */
5c5f6e17
AM		 15104
15105 case R_PPC64_GOT16_HA:
15106 case R_PPC64_PLTGOT16_HA:
15107 case R_PPC64_PLT16_HA:
15108 case R_PPC64_GOT_TLSGD16_HA:
15109 case R_PPC64_GOT_TLSLD16_HA:
15110 case R_PPC64_GOT_TPREL16_HA:
15111 case R_PPC64_GOT_DTPREL16_HA:
15112 /* Add 0x10000 if sign bit in 0:15 is set.
15113 Bits 0:15 are not used. */
15114 addend += 0x8000;
65f38f15
AM		 15115 break;
15116
15117 case R_PPC64_ADDR16_DS:
15118 case R_PPC64_ADDR16_LO_DS:
15119 case R_PPC64_GOT16_DS:
15120 case R_PPC64_GOT16_LO_DS:
15121 case R_PPC64_PLT16_LO_DS:
15122 case R_PPC64_SECTOFF_DS:
15123 case R_PPC64_SECTOFF_LO_DS:
15124 case R_PPC64_TOC16_DS:
15125 case R_PPC64_TOC16_LO_DS:
15126 case R_PPC64_PLTGOT16_DS:
15127 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 15128 case R_PPC64_GOT_TPREL16_DS:
15129 case R_PPC64_GOT_TPREL16_LO_DS:
15130 case R_PPC64_GOT_DTPREL16_DS:
15131 case R_PPC64_GOT_DTPREL16_LO_DS:
15132 case R_PPC64_TPREL16_DS:
15133 case R_PPC64_TPREL16_LO_DS:
15134 case R_PPC64_DTPREL16_DS:
15135 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 15136 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
15137 mask = 3;
a680de9a
PB		 15138 /* If this reloc is against an lq, lxv, or stxv insn, then
15139 the value must be a multiple of 16. This is somewhat of
15140 a hack, but the "correct" way to do this by defining _DQ
15141 forms of all the _DS relocs bloats all reloc switches in
15142 this file. It doesn't make much sense to use these
15143 relocs in data, so testing the insn should be safe. */
15144 if ((insn & (0x3f << 26)) == (56u << 26)
15145 || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1))
adadcc0c 15146 mask = 15;
a680de9a
PB		 15147 relocation += addend;
15148 addend = insn & (mask ^ 3);
15149 if ((relocation & mask) != 0)
65f38f15 15150 {
a680de9a 15151 relocation ^= relocation & mask;
25f53a85 15152 info->callbacks->einfo
695344c0 15153 /* xgettext:c-format */
8de848d8 15154 (_("%P: %H: error: %s not a multiple of %u\n"),
25f53a85 15155 input_bfd, input_section, rel->r_offset,
b80eed39 15156 howto->name,
adadcc0c 15157 mask + 1);
65f38f15 15158 bfd_set_error (bfd_error_bad_value);
b34976b6 15159 ret = FALSE;
c316a17c 15160 goto copy_reloc;
65f38f15
AM		 15161 }
15162 break;
5bd4f169
AM		 15163 }
15164
239e1f3a
AM		 15165 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
15166 because such sections are not SEC_ALLOC and thus ld.so will
15167 not process them. */
65f38f15 15168 if (unresolved_reloc
239e1f3a 15169 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 15170 && h->elf.def_dynamic)
15171 && _bfd_elf_section_offset (output_bfd, info, input_section,
15172 rel->r_offset) != (bfd_vma) -1)
9c07fe7c 15173 {
25f53a85 15174 info->callbacks->einfo
695344c0 15175 /* xgettext:c-format */
bc30df16 15176 (_("%P: %H: unresolvable %s against `%T'\n"),
25f53a85 15177 input_bfd, input_section, rel->r_offset,
b80eed39 15178 howto->name,
039b3fef 15179 h->elf.root.root.string);
b34976b6 15180 ret = FALSE;
9c07fe7c 15181 }
5bd4f169 15182
b80eed39
AM		 15183 /* 16-bit fields in insns mostly have signed values, but a
15184 few insns have 16-bit unsigned values. Really, we should
15185 have different reloc types. */
15186 if (howto->complain_on_overflow != complain_overflow_dont
15187 && howto->dst_mask == 0xffff
15188 && (input_section->flags & SEC_CODE) != 0)
15189 {
15190 enum complain_overflow complain = complain_overflow_signed;
15191
15192 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM		 15193 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
15194 complain = complain_overflow_bitfield;
15195 else if (howto->rightshift == 0
15196 ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */
15197 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
15198 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
15199 : ((insn & (0x3f << 26)) == 29u << 26 /* andis */
15200 || (insn & (0x3f << 26)) == 25u << 26 /* oris */
15201 || (insn & (0x3f << 26)) == 27u << 26 /* xoris */))
b80eed39
AM		 15202 complain = complain_overflow_unsigned;
15203 if (howto->complain_on_overflow != complain)
15204 {
15205 alt_howto = *howto;
15206 alt_howto.complain_on_overflow = complain;
15207 howto = &alt_howto;
15208 }
15209 }
15210
a680de9a
PB		 15211 if (r_type == R_PPC64_REL16DX_HA)
15212 {
15213 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
15214 if (rel->r_offset + 4 > input_section->size)
15215 r = bfd_reloc_outofrange;
15216 else
15217 {
15218 relocation += addend;
15219 relocation -= (rel->r_offset
15220 + input_section->output_offset
15221 + input_section->output_section->vma);
15222 relocation = (bfd_signed_vma) relocation >> 16;
15223 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
15224 insn &= ~0x1fffc1;
15225 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
15226 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
15227 r = bfd_reloc_ok;
15228 if (relocation + 0x8000 > 0xffff)
15229 r = bfd_reloc_overflow;
15230 }
15231 }
15232 else
15233 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
15234 rel->r_offset, relocation, addend);
5bd4f169 15235
ef60b7ff 15236 if (r != bfd_reloc_ok)
5bd4f169 15237 {
bc30df16 15238 char *more_info = NULL;
b80eed39 15239 const char *reloc_name = howto->name;
bc30df16
AM		 15240
15241 if (reloc_dest != DEST_NORMAL)
15242 {
15243 more_info = bfd_malloc (strlen (reloc_name) + 8);
15244 if (more_info != NULL)
15245 {
15246 strcpy (more_info, reloc_name);
15247 strcat (more_info, (reloc_dest == DEST_OPD
15248 ? " (OPD)" : " (stub)"));
15249 reloc_name = more_info;
15250 }
15251 }
15252
cd27b276 15253 if (r == bfd_reloc_overflow)
5bd4f169 15254 {
8131c122
AM		 15255 /* On code like "if (foo) foo();" don't report overflow
15256 on a branch to zero when foo is undefined. */
15257 if (!warned
15258 && (reloc_dest == DEST_STUB
15259 || !(h != NULL
15260 && (h->elf.root.type == bfd_link_hash_undefweak
15261 || h->elf.root.type == bfd_link_hash_undefined)
15262 && is_branch_reloc (r_type))))
1a72702b
AM		 15263 info->callbacks->reloc_overflow (info, &h->elf.root,
15264 sym_name, reloc_name,
15265 orig_rel.r_addend,
15266 input_bfd, input_section,
15267 rel->r_offset);
ef60b7ff
AM		 15268 }
15269 else
15270 {
25f53a85 15271 info->callbacks->einfo
695344c0 15272 /* xgettext:c-format */
bc30df16 15273 (_("%P: %H: %s against `%T': error %d\n"),
25f53a85 15274 input_bfd, input_section, rel->r_offset,
bc30df16 15275 reloc_name, sym_name, (int) r);
b34976b6 15276 ret = FALSE;
ef60b7ff 15277 }
bc30df16
AM		 15278 if (more_info != NULL)
15279 free (more_info);
5bd4f169 15280 }
c316a17c
AM		 15281 copy_reloc:
15282 if (wrel != rel)
15283 *wrel = *rel;
15284 }
15285
15286 if (wrel != rel)
15287 {
15288 Elf_Internal_Shdr *rel_hdr;
15289 size_t deleted = rel - wrel;
15290
15291 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
15292 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
15293 if (rel_hdr->sh_size == 0)
15294 {
15295 /* It is too late to remove an empty reloc section. Leave
15296 one NONE reloc.
15297 ??? What is wrong with an empty section??? */
15298 rel_hdr->sh_size = rel_hdr->sh_entsize;
15299 deleted -= 1;
15300 }
15301 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
15302 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
15303 input_section->reloc_count -= deleted;
5bd4f169
AM		 15304 }
15305
645ea6a9
AM		 15306 /* If we're emitting relocations, then shortly after this function
15307 returns, reloc offsets and addends for this section will be
15308 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM		 15309 file rather than the input. Save a copy of the relocs for
15310 opd_entry_value. */
0e1862bb 15311 if (is_opd && (info->emitrelocations || bfd_link_relocatable (info)))
8860955f
AM		 15312 {
15313 bfd_size_type amt;
15314 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
15315 rel = bfd_alloc (input_bfd, amt);
729eabd5
AM		 15316 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL);
15317 ppc64_elf_tdata (input_bfd)->opd.relocs = rel;
8860955f
AM		 15318 if (rel == NULL)
15319 return FALSE;
15320 memcpy (rel, relocs, amt);
15321 }
5bd4f169
AM		 15322 return ret;
15323}
15324
754021d0
AM		 15325/* Adjust the value of any local symbols in opd sections. */
15326
6e0b88f1 15327static int
754021d0
AM		 15328ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
15329 const char *name ATTRIBUTE_UNUSED,
15330 Elf_Internal_Sym *elfsym,
15331 asection *input_sec,
15332 struct elf_link_hash_entry *h)
15333{
74f0fb50
AM		 15334 struct _opd_sec_data *opd;
15335 long adjust;
754021d0
AM		 15336 bfd_vma value;
15337
4025353c 15338 if (h != NULL)
6e0b88f1 15339 return 1;
4025353c 15340
74f0fb50
AM		 15341 opd = get_opd_info (input_sec);
15342 if (opd == NULL || opd->adjust == NULL)
6e0b88f1 15343 return 1;
754021d0
AM		 15344
15345 value = elfsym->st_value - input_sec->output_offset;
0e1862bb 15346 if (!bfd_link_relocatable (info))
754021d0
AM		 15347 value -= input_sec->output_section->vma;
15348
51aecdc5 15349 adjust = opd->adjust[OPD_NDX (value)];
4025353c 15350 if (adjust == -1)
6e0b88f1
AM		 15351 return 2;
15352
15353 elfsym->st_value += adjust;
15354 return 1;
754021d0
AM		 15355}
15356
5bd4f169
AM		 15357/* Finish up dynamic symbol handling. We set the contents of various
15358 dynamic sections here. */
15359
b34976b6 15360static bfd_boolean
4ce794b7
AM		 15361ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
15362 struct bfd_link_info *info,
15363 struct elf_link_hash_entry *h,
ab6dce23 15364 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5bd4f169 15365{
65f38f15 15366 struct ppc_link_hash_table *htab;
8387904d
AM		 15367 struct plt_entry *ent;
15368 Elf_Internal_Rela rela;
15369 bfd_byte *loc;
5bd4f169 15370
65f38f15 15371 htab = ppc_hash_table (info);
4dfe6ac6
NC		 15372 if (htab == NULL)
15373 return FALSE;
5bd4f169 15374
8387904d
AM		 15375 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
15376 if (ent->plt.offset != (bfd_vma) -1)
15377 {
15378 /* This symbol has an entry in the procedure linkage
15379 table. Set it up. */
e054468f
AM		 15380 if (!htab->elf.dynamic_sections_created
15381 || h->dynindx == -1)
15382 {
15383 BFD_ASSERT (h->type == STT_GNU_IFUNC
15384 && h->def_regular
15385 && (h->root.type == bfd_link_hash_defined
15386 || h->root.type == bfd_link_hash_defweak));
33e44f2e
AM		 15387 rela.r_offset = (htab->elf.iplt->output_section->vma
15388 + htab->elf.iplt->output_offset
25f23106 15389 + ent->plt.offset);
ee67d69a
AM		 15390 if (htab->opd_abi)
15391 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
15392 else
15393 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
e054468f
AM		 15394 rela.r_addend = (h->root.u.def.value
15395 + h->root.u.def.section->output_offset
15396 + h->root.u.def.section->output_section->vma
15397 + ent->addend);
33e44f2e
AM		 15398 loc = (htab->elf.irelplt->contents
15399 + (htab->elf.irelplt->reloc_count++
25f23106 15400 * sizeof (Elf64_External_Rela)));
e054468f
AM		 15401 }
15402 else
15403 {
33e44f2e
AM		 15404 rela.r_offset = (htab->elf.splt->output_section->vma
15405 + htab->elf.splt->output_offset
25f23106 15406 + ent->plt.offset);
e054468f
AM		 15407 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
15408 rela.r_addend = ent->addend;
33e44f2e 15409 loc = (htab->elf.srelplt->contents
b9e5796b
AM		 15410 + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab))
15411 / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela)));
e054468f 15412 }
8387904d 15413 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
a345bc8d
AM		 15414
15415 if (!htab->opd_abi)
15416 {
15417 if (!h->def_regular)
15418 {
15419 /* Mark the symbol as undefined, rather than as
15420 defined in glink. Leave the value if there were
15421 any relocations where pointer equality matters
15422 (this is a clue for the dynamic linker, to make
15423 function pointer comparisons work between an
15424 application and shared library), otherwise set it
15425 to zero. */
15426 sym->st_shndx = SHN_UNDEF;
15427 if (!h->pointer_equality_needed)
15428 sym->st_value = 0;
15429 else if (!h->ref_regular_nonweak)
15430 {
15431 /* This breaks function pointer comparisons, but
15432 that is better than breaking tests for a NULL
15433 function pointer. */
15434 sym->st_value = 0;
15435 }
15436 }
15437 }
8387904d 15438 }
5bd4f169 15439
f5385ebf 15440 if (h->needs_copy)
5bd4f169 15441 {
65f38f15 15442 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 15443
65f38f15
AM		 15444 if (h->dynindx == -1
15445 || (h->root.type != bfd_link_hash_defined
15446 && h->root.type != bfd_link_hash_defweak)
4ce794b7 15447 || htab->relbss == NULL)
65f38f15 15448 abort ();
5bd4f169
AM		 15449
15450 rela.r_offset = (h->root.u.def.value
15451 + h->root.u.def.section->output_section->vma
15452 + h->root.u.def.section->output_offset);
15453 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
15454 rela.r_addend = 0;
4ce794b7
AM		 15455 loc = htab->relbss->contents;
15456 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 15457 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 15458 }
15459
b34976b6 15460 return TRUE;
5bd4f169
AM		 15461}
15462
65f38f15
AM		 15463/* Used to decide how to sort relocs in an optimal manner for the
15464 dynamic linker, before writing them out. */
15465
15466static enum elf_reloc_type_class
7e612e98
AM		 15467ppc64_elf_reloc_type_class (const struct bfd_link_info *info,
15468 const asection *rel_sec,
15469 const Elf_Internal_Rela *rela)
65f38f15 15470{
04c9666a 15471 enum elf_ppc64_reloc_type r_type;
7e612e98
AM		 15472 struct ppc_link_hash_table *htab = ppc_hash_table (info);
15473
33e44f2e 15474 if (rel_sec == htab->elf.irelplt)
7e612e98 15475 return reloc_class_ifunc;
a33d1f77 15476
4ce794b7 15477 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 15478 switch (r_type)
65f38f15
AM		 15479 {
15480 case R_PPC64_RELATIVE:
15481 return reloc_class_relative;
15482 case R_PPC64_JMP_SLOT:
15483 return reloc_class_plt;
15484 case R_PPC64_COPY:
15485 return reloc_class_copy;
15486 default:
15487 return reloc_class_normal;
15488 }
15489}
15490
5bd4f169
AM		 15491/* Finish up the dynamic sections. */
15492
b34976b6 15493static bfd_boolean
4ce794b7
AM		 15494ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
15495 struct bfd_link_info *info)
5bd4f169 15496{
65f38f15
AM		 15497 struct ppc_link_hash_table *htab;
15498 bfd *dynobj;
5bd4f169 15499 asection *sdyn;
5bd4f169 15500
65f38f15 15501 htab = ppc_hash_table (info);
4dfe6ac6
NC		 15502 if (htab == NULL)
15503 return FALSE;
15504
65f38f15 15505 dynobj = htab->elf.dynobj;
3d4d4302 15506 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5bd4f169 15507
65f38f15 15508 if (htab->elf.dynamic_sections_created)
5bd4f169 15509 {
5bd4f169
AM		 15510 Elf64_External_Dyn *dyncon, *dynconend;
15511
33e44f2e 15512 if (sdyn == NULL || htab->elf.sgot == NULL)
65f38f15 15513 abort ();
5bd4f169
AM		 15514
15515 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 15516 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 15517 for (; dyncon < dynconend; dyncon++)
15518 {
15519 Elf_Internal_Dyn dyn;
19397422 15520 asection *s;
5bd4f169
AM		 15521
15522 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
15523
15524 switch (dyn.d_tag)
15525 {
65f38f15
AM		 15526 default:
15527 continue;
5bd4f169 15528
5d1634d7 15529 case DT_PPC64_GLINK:
4ce794b7 15530 s = htab->glink;
6348e046 15531 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 15532 /* We stupidly defined DT_PPC64_GLINK to be the start
15533 of glink rather than the first entry point, which is
15534 what ld.so needs, and now have a bigger stub to
15535 support automatic multiple TOCs. */
b9e5796b 15536 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4;
5d1634d7
AM		 15537 break;
15538
19397422
AM		 15539 case DT_PPC64_OPD:
15540 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 15541 if (s == NULL)
15542 continue;
15543 dyn.d_un.d_ptr = s->vma;
19397422
AM		 15544 break;
15545
e8910a83
AM		 15546 case DT_PPC64_OPT:
15547 if (htab->do_multi_toc && htab->multi_toc_needed)
15548 dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC;
15549 break;
15550
19397422
AM		 15551 case DT_PPC64_OPDSZ:
15552 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 15553 if (s == NULL)
15554 continue;
eea6121a 15555 dyn.d_un.d_val = s->size;
19397422
AM		 15556 break;
15557
65f38f15 15558 case DT_PLTGOT:
33e44f2e 15559 s = htab->elf.splt;
6348e046 15560 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 15561 break;
15562
15563 case DT_JMPREL:
33e44f2e 15564 s = htab->elf.srelplt;
6348e046 15565 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 15566 break;
5bd4f169 15567
65f38f15 15568 case DT_PLTRELSZ:
33e44f2e 15569 dyn.d_un.d_val = htab->elf.srelplt->size;
5d1634d7 15570 break;
5bd4f169 15571 }
5bd4f169 15572
65f38f15 15573 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 15574 }
5bd4f169
AM		 15575 }
15576
33e44f2e 15577 if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0)
5d1634d7
AM		 15578 {
15579 /* Fill in the first entry in the global offset table.
15580 We use it to hold the link-time TOCbase. */
15581 bfd_put_64 (output_bfd,
60ee0d4a 15582 elf_gp (output_bfd) + TOC_BASE_OFF,
33e44f2e 15583 htab->elf.sgot->contents);
5d1634d7
AM		 15584
15585 /* Set .got entry size. */
33e44f2e 15586 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 15587 }
15588
33e44f2e 15589 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
5d1634d7
AM		 15590 {
15591 /* Set .plt entry size. */
33e44f2e 15592 elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize
b9e5796b 15593 = PLT_ENTRY_SIZE (htab);
5d1634d7
AM		 15594 }
15595
84f5d08e
AM		 15596 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
15597 brlt ourselves if emitrelocations. */
15598 if (htab->brlt != NULL
15599 && htab->brlt->reloc_count != 0
15600 && !_bfd_elf_link_output_relocs (output_bfd,
15601 htab->brlt,
d4730f92 15602 elf_section_data (htab->brlt)->rela.hdr,
84f5d08e
AM		 15603 elf_section_data (htab->brlt)->relocs,
15604 NULL))
15605 return FALSE;
15606
176a0d42
AM		 15607 if (htab->glink != NULL
15608 && htab->glink->reloc_count != 0
15609 && !_bfd_elf_link_output_relocs (output_bfd,
15610 htab->glink,
d4730f92 15611 elf_section_data (htab->glink)->rela.hdr,
176a0d42
AM		 15612 elf_section_data (htab->glink)->relocs,
15613 NULL))
15614 return FALSE;
15615
58d180e8 15616 if (htab->glink_eh_frame != NULL
da44f4e5
AM		 15617 && htab->glink_eh_frame->size != 0)
15618 {
15619 bfd_vma val;
15620 bfd_byte *p;
15621 asection *stub_sec;
15622
15623 p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie);
15624 for (stub_sec = htab->params->stub_bfd->sections;
15625 stub_sec != NULL;
15626 stub_sec = stub_sec->next)
15627 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
15628 {
15629 /* FDE length. */
15630 p += 4;
15631 /* CIE pointer. */
15632 p += 4;
15633 /* Offset to stub section. */
15634 val = (stub_sec->output_section->vma
15635 + stub_sec->output_offset);
15636 val -= (htab->glink_eh_frame->output_section->vma
15637 + htab->glink_eh_frame->output_offset
15638 + (p - htab->glink_eh_frame->contents));
15639 if (val + 0x80000000 > 0xffffffff)
15640 {
15641 info->callbacks->einfo
15642 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15643 stub_sec->name);
15644 return FALSE;
15645 }
15646 bfd_put_32 (dynobj, val, p);
15647 p += 4;
15648 /* stub section size. */
15649 p += 4;
15650 /* Augmentation. */
15651 p += 1;
15652 /* Pad. */
15653 p += 7;
15654 }
15655 if (htab->glink != NULL && htab->glink->size != 0)
15656 {
15657 /* FDE length. */
15658 p += 4;
15659 /* CIE pointer. */
15660 p += 4;
15661 /* Offset to .glink. */
15662 val = (htab->glink->output_section->vma
15663 + htab->glink->output_offset
15664 + 8);
15665 val -= (htab->glink_eh_frame->output_section->vma
15666 + htab->glink_eh_frame->output_offset
15667 + (p - htab->glink_eh_frame->contents));
15668 if (val + 0x80000000 > 0xffffffff)
15669 {
15670 info->callbacks->einfo
15671 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15672 htab->glink->name);
15673 return FALSE;
15674 }
15675 bfd_put_32 (dynobj, val, p);
15676 p += 4;
15677 /* .glink size. */
15678 p += 4;
15679 /* Augmentation. */
15680 p += 1;
15681 /* Ops. */
15682 p += 7;
15683 }
15684
15685 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
15686 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
15687 htab->glink_eh_frame,
15688 htab->glink_eh_frame->contents))
15689 return FALSE;
15690 }
58d180e8 15691
e717da7e 15692 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM		 15693 since we didn't add them to DYNOBJ. We know dynobj is the first
15694 bfd. */
c72f2fb2 15695 while ((dynobj = dynobj->link.next) != NULL)
e717da7e
AM		 15696 {
15697 asection *s;
7b53ace3 15698
0c8d6e5c 15699 if (!is_ppc64_elf (dynobj))
7b53ace3
AM		 15700 continue;
15701
e717da7e
AM		 15702 s = ppc64_elf_tdata (dynobj)->got;
15703 if (s != NULL
eea6121a 15704 && s->size != 0
e717da7e
AM		 15705 && s->output_section != bfd_abs_section_ptr
15706 && !bfd_set_section_contents (output_bfd, s->output_section,
15707 s->contents, s->output_offset,
eea6121a 15708 s->size))
e717da7e
AM		 15709 return FALSE;
15710 s = ppc64_elf_tdata (dynobj)->relgot;
15711 if (s != NULL
eea6121a 15712 && s->size != 0
e717da7e
AM		 15713 && s->output_section != bfd_abs_section_ptr
15714 && !bfd_set_section_contents (output_bfd, s->output_section,
15715 s->contents, s->output_offset,
eea6121a 15716 s->size))
e717da7e
AM		 15717 return FALSE;
15718 }
f6c52c13 15719
b34976b6 15720 return TRUE;
5bd4f169
AM		 15721}
15722
5bd4f169 15723#include "elf64-target.h"
7b8e7dad
AM		 15724
15725/* FreeBSD support */
15726
15727#undef TARGET_LITTLE_SYM
15728#undef TARGET_LITTLE_NAME
15729
15730#undef TARGET_BIG_SYM
6d00b590 15731#define TARGET_BIG_SYM powerpc_elf64_fbsd_vec
7b8e7dad
AM		 15732#undef TARGET_BIG_NAME
15733#define TARGET_BIG_NAME "elf64-powerpc-freebsd"
15734
15735#undef ELF_OSABI
15736#define ELF_OSABI ELFOSABI_FREEBSD
15737
15738#undef elf64_bed
15739#define elf64_bed elf64_powerpc_fbsd_bed
15740
15741#include "elf64-target.h"
15742
GDB Binutils - Deliverables
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