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Use VALUE_NEXT_FRAME_ID in value_from_component
[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
6bfdb61b 78#define elf_backend_default_execstack 0
ad8e1ba5 79
e717da7e 80#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5 81#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
aa374f67 82#define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
ee67d69a
AM		 83#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
84#define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data
ad8e1ba5
AM		 85#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
86#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
90e3cdf2 87#define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
aa374f67 88#define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms
ad8e1ba5
AM		 89
90#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 91#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
92#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
183e98be 93#define elf_backend_write_core_note ppc64_elf_write_core_note
ad8e1ba5
AM		 94#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
95#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 96#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
f6c7c3e8 97#define elf_backend_check_directives ppc64_elf_before_check_relocs
e5034e59 98#define elf_backend_notice_as_needed ppc64_elf_notice_as_needed
8387904d 99#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
ad8e1ba5 100#define elf_backend_check_relocs ppc64_elf_check_relocs
74f0fb50 101#define elf_backend_gc_keep ppc64_elf_gc_keep
64d03ab5 102#define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
ad8e1ba5
AM		 103#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
104#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
105#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
106#define elf_backend_hide_symbol ppc64_elf_hide_symbol
9f296da3 107#define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym
ad8e1ba5
AM		 108#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
109#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
a345bc8d 110#define elf_backend_hash_symbol ppc64_elf_hash_symbol
74541ad4 111#define elf_backend_init_index_section _bfd_elf_init_2_index_sections
60124e18 112#define elf_backend_action_discarded ppc64_elf_action_discarded
ad8e1ba5
AM		 113#define elf_backend_relocate_section ppc64_elf_relocate_section
114#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
115#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
116#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 117#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
29ef7005 118#define elf_backend_special_sections ppc64_elf_special_sections
6911b7dc 119#define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute
ad8e1ba5 120
5bd4f169
AM		 121/* The name of the dynamic interpreter. This is put in the .interp
122 section. */
123#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
124
125/* The size in bytes of an entry in the procedure linkage table. */
b9e5796b 126#define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8)
5bd4f169
AM		 127
128/* The initial size of the plt reserved for the dynamic linker. */
b9e5796b 129#define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16)
5bd4f169 130
a078d95a
AM		 131/* Offsets to some stack save slots. */
132#define STK_LR 16
133#define STK_TOC(htab) (htab->opd_abi ? 40 : 24)
eb8d7fda 134/* This one is dodgy. ELFv2 does not have a linker word, so use the
a078d95a
AM		 135 CR save slot. Used only by optimised __tls_get_addr call stub,
136 relying on __tls_get_addr_opt not saving CR.. */
137#define STK_LINKER(htab) (htab->opd_abi ? 32 : 8)
138
5bd4f169 139/* TOC base pointers offset from start of TOC. */
411e1bfb 140#define TOC_BASE_OFF 0x8000
a27e685f
AM		 141/* TOC base alignment. */
142#define TOC_BASE_ALIGN 256
411e1bfb
AM		 143
144/* Offset of tp and dtp pointers from start of TLS block. */
145#define TP_OFFSET 0x7000
146#define DTP_OFFSET 0x8000
5bd4f169 147
ad8e1ba5
AM		 148/* .plt call stub instructions. The normal stub is like this, but
149 sometimes the .plt entry crosses a 64k boundary and we need to
71a39c98 150 insert an addi to adjust r11. */
a078d95a 151#define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */
71a39c98
AM		 152#define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */
153#define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */
154#define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */
155#define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */
156#define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */
5d1634d7
AM		 157#define BCTR 0x4e800420 /* bctr */
158
71a39c98 159#define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */
ad8e1ba5
AM		 160#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
161#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
162
71a39c98
AM		 163#define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */
164#define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */
165#define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */
794e51c0
AM		 166#define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */
167#define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */
168#define BNECTR 0x4ca20420 /* bnectr+ */
169#define BNECTR_P4 0x4ce20420 /* bnectr+ */
170
71a39c98 171#define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */
ac2df442
AM		 172#define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
173#define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
174
a078d95a 175#define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */
006589cf
AM		 176#define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */
177#define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */
ad8e1ba5 178
006589cf
AM		 179#define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */
180#define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */
181#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
a345bc8d
AM		 182#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
183#define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */
184
ee4bf8d2 185/* glink call stub instructions. We enter with the index in R0. */
ad8e1ba5 186#define GLINK_CALL_STUB_SIZE (16*4)
ee4bf8d2
AM		 187 /* 0: */
188 /* .quad plt0-1f */
189 /* __glink: */
190#define MFLR_R12 0x7d8802a6 /* mflr %12 */
191#define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
192 /* 1: */
193#define MFLR_R11 0x7d6802a6 /* mflr %11 */
71a39c98 194 /* ld %2,(0b-1b)(%11) */
ee4bf8d2 195#define MTLR_R12 0x7d8803a6 /* mtlr %12 */
71a39c98
AM		 196#define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */
197 /* ld %12,0(%11) */
198 /* ld %2,8(%11) */
199 /* mtctr %12 */
200 /* ld %11,16(%11) */
ee4bf8d2 201 /* bctr */
b9e5796b
AM		 202#define MFLR_R0 0x7c0802a6 /* mflr %r0 */
203#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
204#define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */
205#define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */
206#define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */
5d1634d7
AM		 207
208/* Pad with this. */
209#define NOP 0x60000000
210
721956f4
AM		 211/* Some other nops. */
212#define CROR_151515 0x4def7b82
213#define CROR_313131 0x4ffffb82
214
cedb70c5 215/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 216#define LI_R0_0 0x38000000 /* li %r0,0 */
217#define B_DOT 0x48000000 /* b . */
218
219/* After that, we need two instructions to load the index, followed by
220 a branch. */
221#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 222#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 223
deb0e272
AM		 224/* Instructions used by the save and restore reg functions. */
225#define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
226#define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
227#define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
228#define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
82bd7b59
AM		 229#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
230#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
deb0e272
AM		 231#define LI_R12_0 0x39800000 /* li %r12,0 */
232#define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
233#define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
234#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
82bd7b59
AM		 235#define BLR 0x4e800020 /* blr */
236
41bd81ab
AM		 237/* Since .opd is an array of descriptors and each entry will end up
238 with identical R_PPC64_RELATIVE relocs, there is really no need to
239 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 240 relocate .opd without reloc entries. */
41bd81ab
AM		 241#ifndef NO_OPD_RELOCS
242#define NO_OPD_RELOCS 0
243#endif
810d4e75 244
a4b6fadd
AM		 245#ifndef ARRAY_SIZE
246#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
247#endif
248
810d4e75
AM		 249static inline int
250abiversion (bfd *abfd)
251{
252 return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI;
253}
254
255static inline void
256set_abiversion (bfd *abfd, int ver)
257{
258 elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI;
259 elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI;
260}
5bd4f169 261\f
f5e87a1d 262#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 263
5bd4f169 264/* Relocation HOWTO's. */
04c9666a 265static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 266
267static reloc_howto_type ppc64_elf_howto_raw[] = {
268 /* This reloc does nothing. */
269 HOWTO (R_PPC64_NONE, /* type */
270 0, /* rightshift */
6346d5ca
AM		 271 3, /* size (0 = byte, 1 = short, 2 = long) */
272 0, /* bitsize */
b34976b6 273 FALSE, /* pc_relative */
5bd4f169 274 0, /* bitpos */
f5e87a1d 275 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 276 bfd_elf_generic_reloc, /* special_function */
277 "R_PPC64_NONE", /* name */
b34976b6 278 FALSE, /* partial_inplace */
d006db6c 279 0, /* src_mask */
5bd4f169 280 0, /* dst_mask */
b34976b6 281 FALSE), /* pcrel_offset */
5bd4f169
AM		 282
283 /* A standard 32 bit relocation. */
284 HOWTO (R_PPC64_ADDR32, /* type */
285 0, /* rightshift */
286 2, /* size (0 = byte, 1 = short, 2 = long) */
287 32, /* bitsize */
b34976b6 288 FALSE, /* pc_relative */
5bd4f169
AM		 289 0, /* bitpos */
290 complain_overflow_bitfield, /* complain_on_overflow */
291 bfd_elf_generic_reloc, /* special_function */
292 "R_PPC64_ADDR32", /* name */
b34976b6 293 FALSE, /* partial_inplace */
5bd4f169
AM		 294 0, /* src_mask */
295 0xffffffff, /* dst_mask */
b34976b6 296 FALSE), /* pcrel_offset */
5bd4f169
AM		 297
298 /* An absolute 26 bit branch; the lower two bits must be zero.
299 FIXME: we don't check that, we just clear them. */
300 HOWTO (R_PPC64_ADDR24, /* type */
301 0, /* rightshift */
302 2, /* size (0 = byte, 1 = short, 2 = long) */
303 26, /* bitsize */
b34976b6 304 FALSE, /* pc_relative */
5bd4f169
AM		 305 0, /* bitpos */
306 complain_overflow_bitfield, /* complain_on_overflow */
307 bfd_elf_generic_reloc, /* special_function */
308 "R_PPC64_ADDR24", /* name */
b34976b6 309 FALSE, /* partial_inplace */
d006db6c 310 0, /* src_mask */
f5e87a1d 311 0x03fffffc, /* dst_mask */
b34976b6 312 FALSE), /* pcrel_offset */
5bd4f169
AM		 313
314 /* A standard 16 bit relocation. */
315 HOWTO (R_PPC64_ADDR16, /* type */
316 0, /* rightshift */
317 1, /* size (0 = byte, 1 = short, 2 = long) */
318 16, /* bitsize */
b34976b6 319 FALSE, /* pc_relative */
5bd4f169
AM		 320 0, /* bitpos */
321 complain_overflow_bitfield, /* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_PPC64_ADDR16", /* name */
b34976b6 324 FALSE, /* partial_inplace */
5bd4f169
AM		 325 0, /* src_mask */
326 0xffff, /* dst_mask */
b34976b6 327 FALSE), /* pcrel_offset */
5bd4f169
AM		 328
329 /* A 16 bit relocation without overflow. */
330 HOWTO (R_PPC64_ADDR16_LO, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
b34976b6 334 FALSE, /* pc_relative */
5bd4f169
AM		 335 0, /* bitpos */
336 complain_overflow_dont,/* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_PPC64_ADDR16_LO", /* name */
b34976b6 339 FALSE, /* partial_inplace */
5bd4f169
AM		 340 0, /* src_mask */
341 0xffff, /* dst_mask */
b34976b6 342 FALSE), /* pcrel_offset */
5bd4f169
AM		 343
344 /* Bits 16-31 of an address. */
345 HOWTO (R_PPC64_ADDR16_HI, /* type */
346 16, /* rightshift */
347 1, /* size (0 = byte, 1 = short, 2 = long) */
348 16, /* bitsize */
b34976b6 349 FALSE, /* pc_relative */
5bd4f169 350 0, /* bitpos */
f9c6b907 351 complain_overflow_signed, /* complain_on_overflow */
5bd4f169
AM		 352 bfd_elf_generic_reloc, /* special_function */
353 "R_PPC64_ADDR16_HI", /* name */
b34976b6 354 FALSE, /* partial_inplace */
5bd4f169
AM		 355 0, /* src_mask */
356 0xffff, /* dst_mask */
b34976b6 357 FALSE), /* pcrel_offset */
5bd4f169
AM		 358
359 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
360 bits, treated as a signed number, is negative. */
361 HOWTO (R_PPC64_ADDR16_HA, /* type */
362 16, /* rightshift */
363 1, /* size (0 = byte, 1 = short, 2 = long) */
364 16, /* bitsize */
b34976b6 365 FALSE, /* pc_relative */
5bd4f169 366 0, /* bitpos */
f9c6b907 367 complain_overflow_signed, /* complain_on_overflow */
805fc799 368 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 369 "R_PPC64_ADDR16_HA", /* name */
b34976b6 370 FALSE, /* partial_inplace */
5bd4f169
AM		 371 0, /* src_mask */
372 0xffff, /* dst_mask */
b34976b6 373 FALSE), /* pcrel_offset */
5bd4f169
AM		 374
375 /* An absolute 16 bit branch; the lower two bits must be zero.
376 FIXME: we don't check that, we just clear them. */
377 HOWTO (R_PPC64_ADDR14, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 16, /* bitsize */
b34976b6 381 FALSE, /* pc_relative */
5bd4f169 382 0, /* bitpos */
b80eed39 383 complain_overflow_signed, /* complain_on_overflow */
2441e016 384 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 385 "R_PPC64_ADDR14", /* name */
b34976b6 386 FALSE, /* partial_inplace */
d006db6c 387 0, /* src_mask */
f5e87a1d 388 0x0000fffc, /* dst_mask */
b34976b6 389 FALSE), /* pcrel_offset */
5bd4f169
AM		 390
391 /* An absolute 16 bit branch, for which bit 10 should be set to
392 indicate that the branch is expected to be taken. The lower two
393 bits must be zero. */
394 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
395 0, /* rightshift */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
397 16, /* bitsize */
b34976b6 398 FALSE, /* pc_relative */
5bd4f169 399 0, /* bitpos */
b80eed39 400 complain_overflow_signed, /* complain_on_overflow */
805fc799 401 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 402 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 403 FALSE, /* partial_inplace */
d006db6c 404 0, /* src_mask */
f5e87a1d 405 0x0000fffc, /* dst_mask */
b34976b6 406 FALSE), /* pcrel_offset */
5bd4f169
AM		 407
408 /* An absolute 16 bit branch, for which bit 10 should be set to
409 indicate that the branch is not expected to be taken. The lower
410 two bits must be zero. */
411 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
412 0, /* rightshift */
413 2, /* size (0 = byte, 1 = short, 2 = long) */
414 16, /* bitsize */
b34976b6 415 FALSE, /* pc_relative */
5bd4f169 416 0, /* bitpos */
b80eed39 417 complain_overflow_signed, /* complain_on_overflow */
805fc799 418 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 419 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 420 FALSE, /* partial_inplace */
d006db6c 421 0, /* src_mask */
f5e87a1d 422 0x0000fffc, /* dst_mask */
b34976b6 423 FALSE), /* pcrel_offset */
5bd4f169
AM		 424
425 /* A relative 26 bit branch; the lower two bits must be zero. */
426 HOWTO (R_PPC64_REL24, /* type */
427 0, /* rightshift */
428 2, /* size (0 = byte, 1 = short, 2 = long) */
429 26, /* bitsize */
b34976b6 430 TRUE, /* pc_relative */
5bd4f169
AM		 431 0, /* bitpos */
432 complain_overflow_signed, /* complain_on_overflow */
2441e016 433 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 434 "R_PPC64_REL24", /* name */
b34976b6 435 FALSE, /* partial_inplace */
d006db6c 436 0, /* src_mask */
f5e87a1d 437 0x03fffffc, /* dst_mask */
b34976b6 438 TRUE), /* pcrel_offset */
5bd4f169
AM		 439
440 /* A relative 16 bit branch; the lower two bits must be zero. */
441 HOWTO (R_PPC64_REL14, /* type */
442 0, /* rightshift */
443 2, /* size (0 = byte, 1 = short, 2 = long) */
444 16, /* bitsize */
b34976b6 445 TRUE, /* pc_relative */
5bd4f169
AM		 446 0, /* bitpos */
447 complain_overflow_signed, /* complain_on_overflow */
2441e016 448 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 449 "R_PPC64_REL14", /* name */
b34976b6 450 FALSE, /* partial_inplace */
d006db6c 451 0, /* src_mask */
f5e87a1d 452 0x0000fffc, /* dst_mask */
b34976b6 453 TRUE), /* pcrel_offset */
5bd4f169
AM		 454
455 /* A relative 16 bit branch. Bit 10 should be set to indicate that
456 the branch is expected to be taken. The lower two bits must be
457 zero. */
458 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
459 0, /* rightshift */
460 2, /* size (0 = byte, 1 = short, 2 = long) */
461 16, /* bitsize */
b34976b6 462 TRUE, /* pc_relative */
5bd4f169
AM		 463 0, /* bitpos */
464 complain_overflow_signed, /* complain_on_overflow */
805fc799 465 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 466 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 467 FALSE, /* partial_inplace */
d006db6c 468 0, /* src_mask */
f5e87a1d 469 0x0000fffc, /* dst_mask */
b34976b6 470 TRUE), /* pcrel_offset */
5bd4f169
AM		 471
472 /* A relative 16 bit branch. Bit 10 should be set to indicate that
473 the branch is not expected to be taken. The lower two bits must
474 be zero. */
475 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
476 0, /* rightshift */
477 2, /* size (0 = byte, 1 = short, 2 = long) */
478 16, /* bitsize */
b34976b6 479 TRUE, /* pc_relative */
5bd4f169
AM		 480 0, /* bitpos */
481 complain_overflow_signed, /* complain_on_overflow */
805fc799 482 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 483 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 484 FALSE, /* partial_inplace */
d006db6c 485 0, /* src_mask */
f5e87a1d 486 0x0000fffc, /* dst_mask */
b34976b6 487 TRUE), /* pcrel_offset */
5bd4f169
AM		 488
489 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
490 symbol. */
491 HOWTO (R_PPC64_GOT16, /* type */
492 0, /* rightshift */
493 1, /* size (0 = byte, 1 = short, 2 = long) */
494 16, /* bitsize */
b34976b6 495 FALSE, /* pc_relative */
5bd4f169
AM		 496 0, /* bitpos */
497 complain_overflow_signed, /* complain_on_overflow */
805fc799 498 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 499 "R_PPC64_GOT16", /* name */
b34976b6 500 FALSE, /* partial_inplace */
5bd4f169
AM		 501 0, /* src_mask */
502 0xffff, /* dst_mask */
b34976b6 503 FALSE), /* pcrel_offset */
5bd4f169
AM		 504
505 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
506 the symbol. */
507 HOWTO (R_PPC64_GOT16_LO, /* type */
508 0, /* rightshift */
509 1, /* size (0 = byte, 1 = short, 2 = long) */
510 16, /* bitsize */
b34976b6 511 FALSE, /* pc_relative */
5bd4f169
AM		 512 0, /* bitpos */
513 complain_overflow_dont, /* complain_on_overflow */
805fc799 514 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 515 "R_PPC64_GOT16_LO", /* name */
b34976b6 516 FALSE, /* partial_inplace */
5bd4f169
AM		 517 0, /* src_mask */
518 0xffff, /* dst_mask */
b34976b6 519 FALSE), /* pcrel_offset */
5bd4f169
AM		 520
521 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
522 the symbol. */
523 HOWTO (R_PPC64_GOT16_HI, /* type */
524 16, /* rightshift */
525 1, /* size (0 = byte, 1 = short, 2 = long) */
526 16, /* bitsize */
b34976b6 527 FALSE, /* pc_relative */
5bd4f169 528 0, /* bitpos */
f9c6b907 529 complain_overflow_signed,/* complain_on_overflow */
805fc799 530 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 531 "R_PPC64_GOT16_HI", /* name */
b34976b6 532 FALSE, /* partial_inplace */
5bd4f169
AM		 533 0, /* src_mask */
534 0xffff, /* dst_mask */
b34976b6 535 FALSE), /* pcrel_offset */
5bd4f169
AM		 536
537 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
538 the symbol. */
539 HOWTO (R_PPC64_GOT16_HA, /* type */
540 16, /* rightshift */
541 1, /* size (0 = byte, 1 = short, 2 = long) */
542 16, /* bitsize */
b34976b6 543 FALSE, /* pc_relative */
5bd4f169 544 0, /* bitpos */
f9c6b907 545 complain_overflow_signed,/* complain_on_overflow */
805fc799 546 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 547 "R_PPC64_GOT16_HA", /* name */
b34976b6 548 FALSE, /* partial_inplace */
5bd4f169
AM		 549 0, /* src_mask */
550 0xffff, /* dst_mask */
b34976b6 551 FALSE), /* pcrel_offset */
5bd4f169
AM		 552
553 /* This is used only by the dynamic linker. The symbol should exist
554 both in the object being run and in some shared library. The
555 dynamic linker copies the data addressed by the symbol from the
556 shared library into the object, because the object being
557 run has to have the data at some particular address. */
558 HOWTO (R_PPC64_COPY, /* type */
559 0, /* rightshift */
f5e87a1d
AM		 560 0, /* this one is variable size */
561 0, /* bitsize */
b34976b6 562 FALSE, /* pc_relative */
5bd4f169 563 0, /* bitpos */
f5e87a1d
AM		 564 complain_overflow_dont, /* complain_on_overflow */
565 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 566 "R_PPC64_COPY", /* name */
b34976b6 567 FALSE, /* partial_inplace */
5bd4f169
AM		 568 0, /* src_mask */
569 0, /* dst_mask */
b34976b6 570 FALSE), /* pcrel_offset */
5bd4f169
AM		 571
572 /* Like R_PPC64_ADDR64, but used when setting global offset table
573 entries. */
574 HOWTO (R_PPC64_GLOB_DAT, /* type */
575 0, /* rightshift */
576 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
577 64, /* bitsize */
b34976b6 578 FALSE, /* pc_relative */
5bd4f169
AM		 579 0, /* bitpos */
580 complain_overflow_dont, /* complain_on_overflow */
805fc799 581 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 582 "R_PPC64_GLOB_DAT", /* name */
b34976b6 583 FALSE, /* partial_inplace */
5bd4f169 584 0, /* src_mask */
f5e87a1d 585 ONES (64), /* dst_mask */
b34976b6 586 FALSE), /* pcrel_offset */
5bd4f169
AM		 587
588 /* Created by the link editor. Marks a procedure linkage table
589 entry for a symbol. */
590 HOWTO (R_PPC64_JMP_SLOT, /* type */
591 0, /* rightshift */
592 0, /* size (0 = byte, 1 = short, 2 = long) */
593 0, /* bitsize */
b34976b6 594 FALSE, /* pc_relative */
5bd4f169
AM		 595 0, /* bitpos */
596 complain_overflow_dont, /* complain_on_overflow */
805fc799 597 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 598 "R_PPC64_JMP_SLOT", /* name */
b34976b6 599 FALSE, /* partial_inplace */
5bd4f169
AM		 600 0, /* src_mask */
601 0, /* dst_mask */
b34976b6 602 FALSE), /* pcrel_offset */
5bd4f169
AM		 603
604 /* Used only by the dynamic linker. When the object is run, this
605 doubleword64 is set to the load address of the object, plus the
606 addend. */
607 HOWTO (R_PPC64_RELATIVE, /* type */
608 0, /* rightshift */
609 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
610 64, /* bitsize */
b34976b6 611 FALSE, /* pc_relative */
5bd4f169
AM		 612 0, /* bitpos */
613 complain_overflow_dont, /* complain_on_overflow */
614 bfd_elf_generic_reloc, /* special_function */
615 "R_PPC64_RELATIVE", /* name */
b34976b6 616 FALSE, /* partial_inplace */
5bd4f169 617 0, /* src_mask */
f5e87a1d 618 ONES (64), /* dst_mask */
b34976b6 619 FALSE), /* pcrel_offset */
5bd4f169
AM		 620
621 /* Like R_PPC64_ADDR32, but may be unaligned. */
622 HOWTO (R_PPC64_UADDR32, /* type */
623 0, /* rightshift */
624 2, /* size (0 = byte, 1 = short, 2 = long) */
625 32, /* bitsize */
b34976b6 626 FALSE, /* pc_relative */
5bd4f169
AM		 627 0, /* bitpos */
628 complain_overflow_bitfield, /* complain_on_overflow */
629 bfd_elf_generic_reloc, /* special_function */
630 "R_PPC64_UADDR32", /* name */
b34976b6 631 FALSE, /* partial_inplace */
5bd4f169
AM		 632 0, /* src_mask */
633 0xffffffff, /* dst_mask */
b34976b6 634 FALSE), /* pcrel_offset */
5bd4f169
AM		 635
636 /* Like R_PPC64_ADDR16, but may be unaligned. */
637 HOWTO (R_PPC64_UADDR16, /* type */
638 0, /* rightshift */
639 1, /* size (0 = byte, 1 = short, 2 = long) */
640 16, /* bitsize */
b34976b6 641 FALSE, /* pc_relative */
5bd4f169
AM		 642 0, /* bitpos */
643 complain_overflow_bitfield, /* complain_on_overflow */
644 bfd_elf_generic_reloc, /* special_function */
645 "R_PPC64_UADDR16", /* name */
b34976b6 646 FALSE, /* partial_inplace */
5bd4f169
AM		 647 0, /* src_mask */
648 0xffff, /* dst_mask */
b34976b6 649 FALSE), /* pcrel_offset */
5bd4f169
AM		 650
651 /* 32-bit PC relative. */
652 HOWTO (R_PPC64_REL32, /* type */
653 0, /* rightshift */
654 2, /* size (0 = byte, 1 = short, 2 = long) */
655 32, /* bitsize */
b34976b6 656 TRUE, /* pc_relative */
5bd4f169 657 0, /* bitpos */
5bd4f169
AM		 658 complain_overflow_signed, /* complain_on_overflow */
659 bfd_elf_generic_reloc, /* special_function */
660 "R_PPC64_REL32", /* name */
b34976b6 661 FALSE, /* partial_inplace */
5bd4f169
AM		 662 0, /* src_mask */
663 0xffffffff, /* dst_mask */
b34976b6 664 TRUE), /* pcrel_offset */
5bd4f169 665
10ed1bba 666 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 667 HOWTO (R_PPC64_PLT32, /* type */
668 0, /* rightshift */
669 2, /* size (0 = byte, 1 = short, 2 = long) */
670 32, /* bitsize */
b34976b6 671 FALSE, /* pc_relative */
5bd4f169
AM		 672 0, /* bitpos */
673 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 674 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 675 "R_PPC64_PLT32", /* name */
b34976b6 676 FALSE, /* partial_inplace */
5bd4f169 677 0, /* src_mask */
f5e87a1d 678 0xffffffff, /* dst_mask */
b34976b6 679 FALSE), /* pcrel_offset */
5bd4f169
AM		 680
681 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
682 FIXME: R_PPC64_PLTREL32 not supported. */
683 HOWTO (R_PPC64_PLTREL32, /* type */
684 0, /* rightshift */
685 2, /* size (0 = byte, 1 = short, 2 = long) */
686 32, /* bitsize */
b34976b6 687 TRUE, /* pc_relative */
5bd4f169
AM		 688 0, /* bitpos */
689 complain_overflow_signed, /* complain_on_overflow */
3ce51288 690 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 691 "R_PPC64_PLTREL32", /* name */
b34976b6 692 FALSE, /* partial_inplace */
5bd4f169 693 0, /* src_mask */
f5e87a1d 694 0xffffffff, /* dst_mask */
b34976b6 695 TRUE), /* pcrel_offset */
5bd4f169
AM		 696
697 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
698 the symbol. */
699 HOWTO (R_PPC64_PLT16_LO, /* type */
700 0, /* rightshift */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
702 16, /* bitsize */
b34976b6 703 FALSE, /* pc_relative */
5bd4f169
AM		 704 0, /* bitpos */
705 complain_overflow_dont, /* complain_on_overflow */
805fc799 706 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 707 "R_PPC64_PLT16_LO", /* name */
b34976b6 708 FALSE, /* partial_inplace */
5bd4f169
AM		 709 0, /* src_mask */
710 0xffff, /* dst_mask */
b34976b6 711 FALSE), /* pcrel_offset */
5bd4f169
AM		 712
713 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
714 the symbol. */
715 HOWTO (R_PPC64_PLT16_HI, /* type */
716 16, /* rightshift */
717 1, /* size (0 = byte, 1 = short, 2 = long) */
718 16, /* bitsize */
b34976b6 719 FALSE, /* pc_relative */
5bd4f169 720 0, /* bitpos */
f9c6b907 721 complain_overflow_signed, /* complain_on_overflow */
805fc799 722 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 723 "R_PPC64_PLT16_HI", /* name */
b34976b6 724 FALSE, /* partial_inplace */
5bd4f169
AM		 725 0, /* src_mask */
726 0xffff, /* dst_mask */
b34976b6 727 FALSE), /* pcrel_offset */
5bd4f169
AM		 728
729 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
730 the symbol. */
731 HOWTO (R_PPC64_PLT16_HA, /* type */
732 16, /* rightshift */
733 1, /* size (0 = byte, 1 = short, 2 = long) */
734 16, /* bitsize */
b34976b6 735 FALSE, /* pc_relative */
5bd4f169 736 0, /* bitpos */
f9c6b907 737 complain_overflow_signed, /* complain_on_overflow */
805fc799 738 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 739 "R_PPC64_PLT16_HA", /* name */
b34976b6 740 FALSE, /* partial_inplace */
5bd4f169
AM		 741 0, /* src_mask */
742 0xffff, /* dst_mask */
b34976b6 743 FALSE), /* pcrel_offset */
5bd4f169 744
c061c2d8 745 /* 16-bit section relative relocation. */
5bd4f169
AM		 746 HOWTO (R_PPC64_SECTOFF, /* type */
747 0, /* rightshift */
c061c2d8
AM		 748 1, /* size (0 = byte, 1 = short, 2 = long) */
749 16, /* bitsize */
b34976b6 750 FALSE, /* pc_relative */
5bd4f169 751 0, /* bitpos */
b80eed39 752 complain_overflow_signed, /* complain_on_overflow */
805fc799 753 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 754 "R_PPC64_SECTOFF", /* name */
b34976b6 755 FALSE, /* partial_inplace */
5bd4f169 756 0, /* src_mask */
c061c2d8 757 0xffff, /* dst_mask */
b34976b6 758 FALSE), /* pcrel_offset */
5bd4f169 759
c061c2d8 760 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 761 HOWTO (R_PPC64_SECTOFF_LO, /* type */
762 0, /* rightshift */
763 1, /* size (0 = byte, 1 = short, 2 = long) */
764 16, /* bitsize */
b34976b6 765 FALSE, /* pc_relative */
5bd4f169
AM		 766 0, /* bitpos */
767 complain_overflow_dont, /* complain_on_overflow */
805fc799 768 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 769 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 770 FALSE, /* partial_inplace */
5bd4f169
AM		 771 0, /* src_mask */
772 0xffff, /* dst_mask */
b34976b6 773 FALSE), /* pcrel_offset */
5bd4f169
AM		 774
775 /* 16-bit upper half section relative relocation. */
776 HOWTO (R_PPC64_SECTOFF_HI, /* type */
777 16, /* rightshift */
778 1, /* size (0 = byte, 1 = short, 2 = long) */
779 16, /* bitsize */
b34976b6 780 FALSE, /* pc_relative */
5bd4f169 781 0, /* bitpos */
f9c6b907 782 complain_overflow_signed, /* complain_on_overflow */
805fc799 783 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 784 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 785 FALSE, /* partial_inplace */
5bd4f169
AM		 786 0, /* src_mask */
787 0xffff, /* dst_mask */
b34976b6 788 FALSE), /* pcrel_offset */
5bd4f169
AM		 789
790 /* 16-bit upper half adjusted section relative relocation. */
791 HOWTO (R_PPC64_SECTOFF_HA, /* type */
792 16, /* rightshift */
793 1, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
b34976b6 795 FALSE, /* pc_relative */
5bd4f169 796 0, /* bitpos */
f9c6b907 797 complain_overflow_signed, /* complain_on_overflow */
805fc799 798 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 799 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 800 FALSE, /* partial_inplace */
5bd4f169
AM		 801 0, /* src_mask */
802 0xffff, /* dst_mask */
b34976b6 803 FALSE), /* pcrel_offset */
5bd4f169 804
04c9666a
AM		 805 /* Like R_PPC64_REL24 without touching the two least significant bits. */
806 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 807 2, /* rightshift */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
809 30, /* bitsize */
b34976b6 810 TRUE, /* pc_relative */
5bd4f169
AM		 811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
04c9666a 814 "R_PPC64_REL30", /* name */
b34976b6 815 FALSE, /* partial_inplace */
d006db6c 816 0, /* src_mask */
5bd4f169 817 0xfffffffc, /* dst_mask */
b34976b6 818 TRUE), /* pcrel_offset */
5bd4f169
AM		 819
820 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
821
822 /* A standard 64-bit relocation. */
823 HOWTO (R_PPC64_ADDR64, /* type */
824 0, /* rightshift */
825 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
826 64, /* bitsize */
b34976b6 827 FALSE, /* pc_relative */
5bd4f169
AM		 828 0, /* bitpos */
829 complain_overflow_dont, /* complain_on_overflow */
830 bfd_elf_generic_reloc, /* special_function */
831 "R_PPC64_ADDR64", /* name */
b34976b6 832 FALSE, /* partial_inplace */
5bd4f169 833 0, /* src_mask */
f5e87a1d 834 ONES (64), /* dst_mask */
b34976b6 835 FALSE), /* pcrel_offset */
5bd4f169
AM		 836
837 /* The bits 32-47 of an address. */
838 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
839 32, /* rightshift */
840 1, /* size (0 = byte, 1 = short, 2 = long) */
841 16, /* bitsize */
b34976b6 842 FALSE, /* pc_relative */
5bd4f169
AM		 843 0, /* bitpos */
844 complain_overflow_dont, /* complain_on_overflow */
845 bfd_elf_generic_reloc, /* special_function */
846 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 847 FALSE, /* partial_inplace */
5bd4f169
AM		 848 0, /* src_mask */
849 0xffff, /* dst_mask */
b34976b6 850 FALSE), /* pcrel_offset */
5bd4f169
AM		 851
852 /* The bits 32-47 of an address, plus 1 if the contents of the low
853 16 bits, treated as a signed number, is negative. */
854 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
855 32, /* rightshift */
856 1, /* size (0 = byte, 1 = short, 2 = long) */
857 16, /* bitsize */
b34976b6 858 FALSE, /* pc_relative */
5bd4f169
AM		 859 0, /* bitpos */
860 complain_overflow_dont, /* complain_on_overflow */
805fc799 861 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 862 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 863 FALSE, /* partial_inplace */
5bd4f169
AM		 864 0, /* src_mask */
865 0xffff, /* dst_mask */
b34976b6 866 FALSE), /* pcrel_offset */
5bd4f169
AM		 867
868 /* The bits 48-63 of an address. */
869 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
870 48, /* rightshift */
871 1, /* size (0 = byte, 1 = short, 2 = long) */
872 16, /* bitsize */
b34976b6 873 FALSE, /* pc_relative */
5bd4f169
AM		 874 0, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
876 bfd_elf_generic_reloc, /* special_function */
877 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 878 FALSE, /* partial_inplace */
5bd4f169
AM		 879 0, /* src_mask */
880 0xffff, /* dst_mask */
b34976b6 881 FALSE), /* pcrel_offset */
5bd4f169
AM		 882
883 /* The bits 48-63 of an address, plus 1 if the contents of the low
884 16 bits, treated as a signed number, is negative. */
885 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
886 48, /* rightshift */
887 1, /* size (0 = byte, 1 = short, 2 = long) */
888 16, /* bitsize */
b34976b6 889 FALSE, /* pc_relative */
5bd4f169
AM		 890 0, /* bitpos */
891 complain_overflow_dont, /* complain_on_overflow */
805fc799 892 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 893 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 894 FALSE, /* partial_inplace */
5bd4f169
AM		 895 0, /* src_mask */
896 0xffff, /* dst_mask */
b34976b6 897 FALSE), /* pcrel_offset */
5bd4f169
AM		 898
899 /* Like ADDR64, but may be unaligned. */
900 HOWTO (R_PPC64_UADDR64, /* type */
901 0, /* rightshift */
902 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
903 64, /* bitsize */
b34976b6 904 FALSE, /* pc_relative */
5bd4f169
AM		 905 0, /* bitpos */
906 complain_overflow_dont, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_PPC64_UADDR64", /* name */
b34976b6 909 FALSE, /* partial_inplace */
5bd4f169 910 0, /* src_mask */
f5e87a1d 911 ONES (64), /* dst_mask */
b34976b6 912 FALSE), /* pcrel_offset */
5bd4f169
AM		 913
914 /* 64-bit relative relocation. */
915 HOWTO (R_PPC64_REL64, /* type */
916 0, /* rightshift */
917 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
918 64, /* bitsize */
b34976b6 919 TRUE, /* pc_relative */
5bd4f169
AM		 920 0, /* bitpos */
921 complain_overflow_dont, /* complain_on_overflow */
922 bfd_elf_generic_reloc, /* special_function */
923 "R_PPC64_REL64", /* name */
b34976b6 924 FALSE, /* partial_inplace */
5bd4f169 925 0, /* src_mask */
f5e87a1d 926 ONES (64), /* dst_mask */
b34976b6 927 TRUE), /* pcrel_offset */
5bd4f169 928
cedb70c5 929 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 930 HOWTO (R_PPC64_PLT64, /* type */
931 0, /* rightshift */
932 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
933 64, /* bitsize */
b34976b6 934 FALSE, /* pc_relative */
5bd4f169
AM		 935 0, /* bitpos */
936 complain_overflow_dont, /* complain_on_overflow */
805fc799 937 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 938 "R_PPC64_PLT64", /* name */
b34976b6 939 FALSE, /* partial_inplace */
5bd4f169 940 0, /* src_mask */
f5e87a1d 941 ONES (64), /* dst_mask */
b34976b6 942 FALSE), /* pcrel_offset */
5bd4f169
AM		 943
944 /* 64-bit PC relative relocation to the symbol's procedure linkage
945 table. */
946 /* FIXME: R_PPC64_PLTREL64 not supported. */
947 HOWTO (R_PPC64_PLTREL64, /* type */
948 0, /* rightshift */
949 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
950 64, /* bitsize */
b34976b6 951 TRUE, /* pc_relative */
5bd4f169
AM		 952 0, /* bitpos */
953 complain_overflow_dont, /* complain_on_overflow */
805fc799 954 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 955 "R_PPC64_PLTREL64", /* name */
b34976b6 956 FALSE, /* partial_inplace */
5bd4f169 957 0, /* src_mask */
f5e87a1d 958 ONES (64), /* dst_mask */
b34976b6 959 TRUE), /* pcrel_offset */
5bd4f169
AM		 960
961 /* 16 bit TOC-relative relocation. */
962
963 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
964 HOWTO (R_PPC64_TOC16, /* type */
965 0, /* rightshift */
966 1, /* size (0 = byte, 1 = short, 2 = long) */
967 16, /* bitsize */
b34976b6 968 FALSE, /* pc_relative */
5bd4f169
AM		 969 0, /* bitpos */
970 complain_overflow_signed, /* complain_on_overflow */
805fc799 971 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 972 "R_PPC64_TOC16", /* name */
b34976b6 973 FALSE, /* partial_inplace */
5bd4f169
AM		 974 0, /* src_mask */
975 0xffff, /* dst_mask */
b34976b6 976 FALSE), /* pcrel_offset */
5bd4f169
AM		 977
978 /* 16 bit TOC-relative relocation without overflow. */
979
980 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
981 HOWTO (R_PPC64_TOC16_LO, /* type */
982 0, /* rightshift */
983 1, /* size (0 = byte, 1 = short, 2 = long) */
984 16, /* bitsize */
b34976b6 985 FALSE, /* pc_relative */
5bd4f169
AM		 986 0, /* bitpos */
987 complain_overflow_dont, /* complain_on_overflow */
805fc799 988 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 989 "R_PPC64_TOC16_LO", /* name */
b34976b6 990 FALSE, /* partial_inplace */
5bd4f169
AM		 991 0, /* src_mask */
992 0xffff, /* dst_mask */
b34976b6 993 FALSE), /* pcrel_offset */
5bd4f169
AM		 994
995 /* 16 bit TOC-relative relocation, high 16 bits. */
996
997 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
998 HOWTO (R_PPC64_TOC16_HI, /* type */
999 16, /* rightshift */
1000 1, /* size (0 = byte, 1 = short, 2 = long) */
1001 16, /* bitsize */
b34976b6 1002 FALSE, /* pc_relative */
5bd4f169 1003 0, /* bitpos */
f9c6b907 1004 complain_overflow_signed, /* complain_on_overflow */
805fc799 1005 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 1006 "R_PPC64_TOC16_HI", /* name */
b34976b6 1007 FALSE, /* partial_inplace */
5bd4f169
AM		 1008 0, /* src_mask */
1009 0xffff, /* dst_mask */
b34976b6 1010 FALSE), /* pcrel_offset */
5bd4f169
AM		 1011
1012 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
1013 contents of the low 16 bits, treated as a signed number, is
1014 negative. */
1015
1016 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
1017 HOWTO (R_PPC64_TOC16_HA, /* type */
1018 16, /* rightshift */
1019 1, /* size (0 = byte, 1 = short, 2 = long) */
1020 16, /* bitsize */
b34976b6 1021 FALSE, /* pc_relative */
5bd4f169 1022 0, /* bitpos */
f9c6b907 1023 complain_overflow_signed, /* complain_on_overflow */
805fc799 1024 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 1025 "R_PPC64_TOC16_HA", /* name */
b34976b6 1026 FALSE, /* partial_inplace */
5bd4f169
AM		 1027 0, /* src_mask */
1028 0xffff, /* dst_mask */
b34976b6 1029 FALSE), /* pcrel_offset */
5bd4f169
AM		 1030
1031 /* 64-bit relocation; insert value of TOC base (.TOC.). */
1032
1033 /* R_PPC64_TOC 51 doubleword64 .TOC. */
1034 HOWTO (R_PPC64_TOC, /* type */
1035 0, /* rightshift */
1036 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1037 64, /* bitsize */
b34976b6 1038 FALSE, /* pc_relative */
5bd4f169 1039 0, /* bitpos */
b80eed39 1040 complain_overflow_dont, /* complain_on_overflow */
805fc799 1041 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 1042 "R_PPC64_TOC", /* name */
b34976b6 1043 FALSE, /* partial_inplace */
5bd4f169 1044 0, /* src_mask */
f5e87a1d 1045 ONES (64), /* dst_mask */
b34976b6 1046 FALSE), /* pcrel_offset */
5bd4f169
AM		 1047
1048 /* Like R_PPC64_GOT16, but also informs the link editor that the
1049 value to relocate may (!) refer to a PLT entry which the link
1050 editor (a) may replace with the symbol value. If the link editor
1051 is unable to fully resolve the symbol, it may (b) create a PLT
1052 entry and store the address to the new PLT entry in the GOT.
1053 This permits lazy resolution of function symbols at run time.
1054 The link editor may also skip all of this and just (c) emit a
1055 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1056 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1057 HOWTO (R_PPC64_PLTGOT16, /* type */
1058 0, /* rightshift */
1059 1, /* size (0 = byte, 1 = short, 2 = long) */
1060 16, /* bitsize */
b34976b6 1061 FALSE, /* pc_relative */
5bd4f169
AM		 1062 0, /* bitpos */
1063 complain_overflow_signed, /* complain_on_overflow */
805fc799 1064 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 1065 "R_PPC64_PLTGOT16", /* name */
1066 FALSE, /* partial_inplace */
1067 0, /* src_mask */
1068 0xffff, /* dst_mask */
1069 FALSE), /* pcrel_offset */
1070
1071 /* Like R_PPC64_PLTGOT16, but without overflow. */
1072 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1073 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1074 0, /* rightshift */
1075 1, /* size (0 = byte, 1 = short, 2 = long) */
1076 16, /* bitsize */
1077 FALSE, /* pc_relative */
1078 0, /* bitpos */
1079 complain_overflow_dont, /* complain_on_overflow */
1080 ppc64_elf_unhandled_reloc, /* special_function */
1081 "R_PPC64_PLTGOT16_LO", /* name */
1082 FALSE, /* partial_inplace */
1083 0, /* src_mask */
1084 0xffff, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1086
1087 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1088 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1089 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1090 16, /* rightshift */
1091 1, /* size (0 = byte, 1 = short, 2 = long) */
1092 16, /* bitsize */
1093 FALSE, /* pc_relative */
1094 0, /* bitpos */
f9c6b907 1095 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1096 ppc64_elf_unhandled_reloc, /* special_function */
1097 "R_PPC64_PLTGOT16_HI", /* name */
1098 FALSE, /* partial_inplace */
1099 0, /* src_mask */
1100 0xffff, /* dst_mask */
1101 FALSE), /* pcrel_offset */
1102
1103 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1104 1 if the contents of the low 16 bits, treated as a signed number,
1105 is negative. */
1106 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1107 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1108 16, /* rightshift */
1109 1, /* size (0 = byte, 1 = short, 2 = long) */
1110 16, /* bitsize */
1111 FALSE, /* pc_relative */
1112 0, /* bitpos */
f9c6b907 1113 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1114 ppc64_elf_unhandled_reloc, /* special_function */
1115 "R_PPC64_PLTGOT16_HA", /* name */
1116 FALSE, /* partial_inplace */
1117 0, /* src_mask */
1118 0xffff, /* dst_mask */
1119 FALSE), /* pcrel_offset */
1120
1121 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1122 HOWTO (R_PPC64_ADDR16_DS, /* type */
1123 0, /* rightshift */
1124 1, /* size (0 = byte, 1 = short, 2 = long) */
1125 16, /* bitsize */
1126 FALSE, /* pc_relative */
1127 0, /* bitpos */
b80eed39 1128 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1129 bfd_elf_generic_reloc, /* special_function */
1130 "R_PPC64_ADDR16_DS", /* name */
1131 FALSE, /* partial_inplace */
1132 0, /* src_mask */
1133 0xfffc, /* dst_mask */
1134 FALSE), /* pcrel_offset */
1135
1136 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1137 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1138 0, /* rightshift */
1139 1, /* size (0 = byte, 1 = short, 2 = long) */
1140 16, /* bitsize */
1141 FALSE, /* pc_relative */
1142 0, /* bitpos */
1143 complain_overflow_dont,/* complain_on_overflow */
1144 bfd_elf_generic_reloc, /* special_function */
1145 "R_PPC64_ADDR16_LO_DS",/* name */
1146 FALSE, /* partial_inplace */
1147 0, /* src_mask */
1148 0xfffc, /* dst_mask */
1149 FALSE), /* pcrel_offset */
1150
1151 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1152 HOWTO (R_PPC64_GOT16_DS, /* type */
1153 0, /* rightshift */
1154 1, /* size (0 = byte, 1 = short, 2 = long) */
1155 16, /* bitsize */
1156 FALSE, /* pc_relative */
1157 0, /* bitpos */
1158 complain_overflow_signed, /* complain_on_overflow */
1159 ppc64_elf_unhandled_reloc, /* special_function */
1160 "R_PPC64_GOT16_DS", /* name */
1161 FALSE, /* partial_inplace */
1162 0, /* src_mask */
1163 0xfffc, /* dst_mask */
1164 FALSE), /* pcrel_offset */
1165
1166 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1167 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1168 0, /* rightshift */
1169 1, /* size (0 = byte, 1 = short, 2 = long) */
1170 16, /* bitsize */
1171 FALSE, /* pc_relative */
1172 0, /* bitpos */
1173 complain_overflow_dont, /* complain_on_overflow */
1174 ppc64_elf_unhandled_reloc, /* special_function */
1175 "R_PPC64_GOT16_LO_DS", /* name */
1176 FALSE, /* partial_inplace */
1177 0, /* src_mask */
1178 0xfffc, /* dst_mask */
1179 FALSE), /* pcrel_offset */
1180
1181 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1182 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1183 0, /* rightshift */
1184 1, /* size (0 = byte, 1 = short, 2 = long) */
1185 16, /* bitsize */
1186 FALSE, /* pc_relative */
1187 0, /* bitpos */
1188 complain_overflow_dont, /* complain_on_overflow */
1189 ppc64_elf_unhandled_reloc, /* special_function */
1190 "R_PPC64_PLT16_LO_DS", /* name */
1191 FALSE, /* partial_inplace */
1192 0, /* src_mask */
1193 0xfffc, /* dst_mask */
1194 FALSE), /* pcrel_offset */
1195
1196 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1197 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1198 0, /* rightshift */
1199 1, /* size (0 = byte, 1 = short, 2 = long) */
1200 16, /* bitsize */
1201 FALSE, /* pc_relative */
1202 0, /* bitpos */
b80eed39 1203 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1204 ppc64_elf_sectoff_reloc, /* special_function */
1205 "R_PPC64_SECTOFF_DS", /* name */
1206 FALSE, /* partial_inplace */
1207 0, /* src_mask */
1208 0xfffc, /* dst_mask */
1209 FALSE), /* pcrel_offset */
1210
1211 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1212 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1213 0, /* rightshift */
1214 1, /* size (0 = byte, 1 = short, 2 = long) */
1215 16, /* bitsize */
1216 FALSE, /* pc_relative */
1217 0, /* bitpos */
1218 complain_overflow_dont, /* complain_on_overflow */
1219 ppc64_elf_sectoff_reloc, /* special_function */
1220 "R_PPC64_SECTOFF_LO_DS",/* name */
1221 FALSE, /* partial_inplace */
1222 0, /* src_mask */
1223 0xfffc, /* dst_mask */
1224 FALSE), /* pcrel_offset */
1225
1226 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1227 HOWTO (R_PPC64_TOC16_DS, /* type */
1228 0, /* rightshift */
1229 1, /* size (0 = byte, 1 = short, 2 = long) */
1230 16, /* bitsize */
1231 FALSE, /* pc_relative */
1232 0, /* bitpos */
1233 complain_overflow_signed, /* complain_on_overflow */
1234 ppc64_elf_toc_reloc, /* special_function */
1235 "R_PPC64_TOC16_DS", /* name */
1236 FALSE, /* partial_inplace */
1237 0, /* src_mask */
1238 0xfffc, /* dst_mask */
1239 FALSE), /* pcrel_offset */
1240
1241 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1242 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1243 0, /* rightshift */
1244 1, /* size (0 = byte, 1 = short, 2 = long) */
1245 16, /* bitsize */
1246 FALSE, /* pc_relative */
1247 0, /* bitpos */
1248 complain_overflow_dont, /* complain_on_overflow */
1249 ppc64_elf_toc_reloc, /* special_function */
1250 "R_PPC64_TOC16_LO_DS", /* name */
1251 FALSE, /* partial_inplace */
1252 0, /* src_mask */
1253 0xfffc, /* dst_mask */
1254 FALSE), /* pcrel_offset */
1255
1256 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1257 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
6bfdb61b 1258 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
411e1bfb
AM		 1259 0, /* rightshift */
1260 1, /* size (0 = byte, 1 = short, 2 = long) */
1261 16, /* bitsize */
1262 FALSE, /* pc_relative */
1263 0, /* bitpos */
1264 complain_overflow_signed, /* complain_on_overflow */
1265 ppc64_elf_unhandled_reloc, /* special_function */
1266 "R_PPC64_PLTGOT16_DS", /* name */
1267 FALSE, /* partial_inplace */
1268 0, /* src_mask */
1269 0xfffc, /* dst_mask */
1270 FALSE), /* pcrel_offset */
1271
1272 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1273 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1274 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1275 0, /* rightshift */
1276 1, /* size (0 = byte, 1 = short, 2 = long) */
1277 16, /* bitsize */
1278 FALSE, /* pc_relative */
1279 0, /* bitpos */
1280 complain_overflow_dont, /* complain_on_overflow */
1281 ppc64_elf_unhandled_reloc, /* special_function */
1282 "R_PPC64_PLTGOT16_LO_DS",/* name */
1283 FALSE, /* partial_inplace */
1284 0, /* src_mask */
1285 0xfffc, /* dst_mask */
1286 FALSE), /* pcrel_offset */
1287
727fc41e 1288 /* Marker relocs for TLS. */
411e1bfb
AM		 1289 HOWTO (R_PPC64_TLS,
1290 0, /* rightshift */
1291 2, /* size (0 = byte, 1 = short, 2 = long) */
1292 32, /* bitsize */
1293 FALSE, /* pc_relative */
1294 0, /* bitpos */
1295 complain_overflow_dont, /* complain_on_overflow */
1296 bfd_elf_generic_reloc, /* special_function */
1297 "R_PPC64_TLS", /* name */
1298 FALSE, /* partial_inplace */
1299 0, /* src_mask */
1300 0, /* dst_mask */
1301 FALSE), /* pcrel_offset */
1302
727fc41e
AM		 1303 HOWTO (R_PPC64_TLSGD,
1304 0, /* rightshift */
1305 2, /* size (0 = byte, 1 = short, 2 = long) */
1306 32, /* bitsize */
1307 FALSE, /* pc_relative */
1308 0, /* bitpos */
1309 complain_overflow_dont, /* complain_on_overflow */
1310 bfd_elf_generic_reloc, /* special_function */
1311 "R_PPC64_TLSGD", /* name */
1312 FALSE, /* partial_inplace */
1313 0, /* src_mask */
1314 0, /* dst_mask */
1315 FALSE), /* pcrel_offset */
1316
1317 HOWTO (R_PPC64_TLSLD,
1318 0, /* rightshift */
1319 2, /* size (0 = byte, 1 = short, 2 = long) */
1320 32, /* bitsize */
1321 FALSE, /* pc_relative */
1322 0, /* bitpos */
1323 complain_overflow_dont, /* complain_on_overflow */
1324 bfd_elf_generic_reloc, /* special_function */
1325 "R_PPC64_TLSLD", /* name */
1326 FALSE, /* partial_inplace */
1327 0, /* src_mask */
1328 0, /* dst_mask */
1329 FALSE), /* pcrel_offset */
1330
3b421ab3
AM		 1331 HOWTO (R_PPC64_TOCSAVE,
1332 0, /* rightshift */
1333 2, /* size (0 = byte, 1 = short, 2 = long) */
1334 32, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
1337 complain_overflow_dont, /* complain_on_overflow */
1338 bfd_elf_generic_reloc, /* special_function */
1339 "R_PPC64_TOCSAVE", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
411e1bfb
AM		 1345 /* Computes the load module index of the load module that contains the
1346 definition of its TLS sym. */
1347 HOWTO (R_PPC64_DTPMOD64,
1348 0, /* rightshift */
1349 4, /* size (0 = byte, 1 = short, 2 = long) */
1350 64, /* bitsize */
1351 FALSE, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_dont, /* complain_on_overflow */
1354 ppc64_elf_unhandled_reloc, /* special_function */
1355 "R_PPC64_DTPMOD64", /* name */
1356 FALSE, /* partial_inplace */
1357 0, /* src_mask */
1358 ONES (64), /* dst_mask */
1359 FALSE), /* pcrel_offset */
1360
1361 /* Computes a dtv-relative displacement, the difference between the value
1362 of sym+add and the base address of the thread-local storage block that
1363 contains the definition of sym, minus 0x8000. */
1364 HOWTO (R_PPC64_DTPREL64,
1365 0, /* rightshift */
1366 4, /* size (0 = byte, 1 = short, 2 = long) */
1367 64, /* bitsize */
1368 FALSE, /* pc_relative */
1369 0, /* bitpos */
1370 complain_overflow_dont, /* complain_on_overflow */
1371 ppc64_elf_unhandled_reloc, /* special_function */
1372 "R_PPC64_DTPREL64", /* name */
1373 FALSE, /* partial_inplace */
1374 0, /* src_mask */
1375 ONES (64), /* dst_mask */
1376 FALSE), /* pcrel_offset */
1377
1378 /* A 16 bit dtprel reloc. */
1379 HOWTO (R_PPC64_DTPREL16,
1380 0, /* rightshift */
1381 1, /* size (0 = byte, 1 = short, 2 = long) */
1382 16, /* bitsize */
1383 FALSE, /* pc_relative */
1384 0, /* bitpos */
1385 complain_overflow_signed, /* complain_on_overflow */
1386 ppc64_elf_unhandled_reloc, /* special_function */
1387 "R_PPC64_DTPREL16", /* name */
1388 FALSE, /* partial_inplace */
1389 0, /* src_mask */
1390 0xffff, /* dst_mask */
1391 FALSE), /* pcrel_offset */
1392
1393 /* Like DTPREL16, but no overflow. */
1394 HOWTO (R_PPC64_DTPREL16_LO,
1395 0, /* rightshift */
1396 1, /* size (0 = byte, 1 = short, 2 = long) */
1397 16, /* bitsize */
1398 FALSE, /* pc_relative */
1399 0, /* bitpos */
1400 complain_overflow_dont, /* complain_on_overflow */
1401 ppc64_elf_unhandled_reloc, /* special_function */
1402 "R_PPC64_DTPREL16_LO", /* name */
1403 FALSE, /* partial_inplace */
1404 0, /* src_mask */
1405 0xffff, /* dst_mask */
1406 FALSE), /* pcrel_offset */
1407
1408 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1409 HOWTO (R_PPC64_DTPREL16_HI,
1410 16, /* rightshift */
1411 1, /* size (0 = byte, 1 = short, 2 = long) */
1412 16, /* bitsize */
1413 FALSE, /* pc_relative */
1414 0, /* bitpos */
f9c6b907 1415 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1416 ppc64_elf_unhandled_reloc, /* special_function */
1417 "R_PPC64_DTPREL16_HI", /* name */
1418 FALSE, /* partial_inplace */
1419 0, /* src_mask */
1420 0xffff, /* dst_mask */
1421 FALSE), /* pcrel_offset */
1422
1423 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1424 HOWTO (R_PPC64_DTPREL16_HA,
1425 16, /* rightshift */
1426 1, /* size (0 = byte, 1 = short, 2 = long) */
1427 16, /* bitsize */
1428 FALSE, /* pc_relative */
1429 0, /* bitpos */
f9c6b907 1430 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1431 ppc64_elf_unhandled_reloc, /* special_function */
1432 "R_PPC64_DTPREL16_HA", /* name */
1433 FALSE, /* partial_inplace */
1434 0, /* src_mask */
1435 0xffff, /* dst_mask */
1436 FALSE), /* pcrel_offset */
1437
1438 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1439 HOWTO (R_PPC64_DTPREL16_HIGHER,
1440 32, /* rightshift */
1441 1, /* size (0 = byte, 1 = short, 2 = long) */
1442 16, /* bitsize */
1443 FALSE, /* pc_relative */
1444 0, /* bitpos */
1445 complain_overflow_dont, /* complain_on_overflow */
1446 ppc64_elf_unhandled_reloc, /* special_function */
1447 "R_PPC64_DTPREL16_HIGHER", /* name */
1448 FALSE, /* partial_inplace */
1449 0, /* src_mask */
1450 0xffff, /* dst_mask */
1451 FALSE), /* pcrel_offset */
1452
1453 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1454 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1455 32, /* rightshift */
1456 1, /* size (0 = byte, 1 = short, 2 = long) */
1457 16, /* bitsize */
1458 FALSE, /* pc_relative */
1459 0, /* bitpos */
1460 complain_overflow_dont, /* complain_on_overflow */
1461 ppc64_elf_unhandled_reloc, /* special_function */
1462 "R_PPC64_DTPREL16_HIGHERA", /* name */
1463 FALSE, /* partial_inplace */
1464 0, /* src_mask */
1465 0xffff, /* dst_mask */
1466 FALSE), /* pcrel_offset */
1467
1468 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1469 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1470 48, /* rightshift */
1471 1, /* size (0 = byte, 1 = short, 2 = long) */
1472 16, /* bitsize */
1473 FALSE, /* pc_relative */
1474 0, /* bitpos */
1475 complain_overflow_dont, /* complain_on_overflow */
1476 ppc64_elf_unhandled_reloc, /* special_function */
1477 "R_PPC64_DTPREL16_HIGHEST", /* name */
1478 FALSE, /* partial_inplace */
1479 0, /* src_mask */
1480 0xffff, /* dst_mask */
1481 FALSE), /* pcrel_offset */
1482
1483 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1484 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1485 48, /* rightshift */
1486 1, /* size (0 = byte, 1 = short, 2 = long) */
1487 16, /* bitsize */
1488 FALSE, /* pc_relative */
1489 0, /* bitpos */
1490 complain_overflow_dont, /* complain_on_overflow */
1491 ppc64_elf_unhandled_reloc, /* special_function */
1492 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1493 FALSE, /* partial_inplace */
1494 0, /* src_mask */
1495 0xffff, /* dst_mask */
1496 FALSE), /* pcrel_offset */
1497
1498 /* Like DTPREL16, but for insns with a DS field. */
1499 HOWTO (R_PPC64_DTPREL16_DS,
1500 0, /* rightshift */
1501 1, /* size (0 = byte, 1 = short, 2 = long) */
1502 16, /* bitsize */
1503 FALSE, /* pc_relative */
1504 0, /* bitpos */
1505 complain_overflow_signed, /* complain_on_overflow */
1506 ppc64_elf_unhandled_reloc, /* special_function */
1507 "R_PPC64_DTPREL16_DS", /* name */
1508 FALSE, /* partial_inplace */
1509 0, /* src_mask */
1510 0xfffc, /* dst_mask */
1511 FALSE), /* pcrel_offset */
1512
1513 /* Like DTPREL16_DS, but no overflow. */
1514 HOWTO (R_PPC64_DTPREL16_LO_DS,
1515 0, /* rightshift */
1516 1, /* size (0 = byte, 1 = short, 2 = long) */
1517 16, /* bitsize */
1518 FALSE, /* pc_relative */
1519 0, /* bitpos */
1520 complain_overflow_dont, /* complain_on_overflow */
1521 ppc64_elf_unhandled_reloc, /* special_function */
1522 "R_PPC64_DTPREL16_LO_DS", /* name */
1523 FALSE, /* partial_inplace */
1524 0, /* src_mask */
1525 0xfffc, /* dst_mask */
1526 FALSE), /* pcrel_offset */
1527
1528 /* Computes a tp-relative displacement, the difference between the value of
1529 sym+add and the value of the thread pointer (r13). */
1530 HOWTO (R_PPC64_TPREL64,
1531 0, /* rightshift */
1532 4, /* size (0 = byte, 1 = short, 2 = long) */
1533 64, /* bitsize */
1534 FALSE, /* pc_relative */
1535 0, /* bitpos */
1536 complain_overflow_dont, /* complain_on_overflow */
1537 ppc64_elf_unhandled_reloc, /* special_function */
1538 "R_PPC64_TPREL64", /* name */
1539 FALSE, /* partial_inplace */
1540 0, /* src_mask */
1541 ONES (64), /* dst_mask */
1542 FALSE), /* pcrel_offset */
1543
1544 /* A 16 bit tprel reloc. */
1545 HOWTO (R_PPC64_TPREL16,
1546 0, /* rightshift */
1547 1, /* size (0 = byte, 1 = short, 2 = long) */
1548 16, /* bitsize */
1549 FALSE, /* pc_relative */
1550 0, /* bitpos */
1551 complain_overflow_signed, /* complain_on_overflow */
1552 ppc64_elf_unhandled_reloc, /* special_function */
1553 "R_PPC64_TPREL16", /* name */
1554 FALSE, /* partial_inplace */
1555 0, /* src_mask */
1556 0xffff, /* dst_mask */
1557 FALSE), /* pcrel_offset */
1558
1559 /* Like TPREL16, but no overflow. */
1560 HOWTO (R_PPC64_TPREL16_LO,
1561 0, /* rightshift */
1562 1, /* size (0 = byte, 1 = short, 2 = long) */
1563 16, /* bitsize */
1564 FALSE, /* pc_relative */
1565 0, /* bitpos */
1566 complain_overflow_dont, /* complain_on_overflow */
1567 ppc64_elf_unhandled_reloc, /* special_function */
1568 "R_PPC64_TPREL16_LO", /* name */
1569 FALSE, /* partial_inplace */
1570 0, /* src_mask */
1571 0xffff, /* dst_mask */
1572 FALSE), /* pcrel_offset */
1573
1574 /* Like TPREL16_LO, but next higher group of 16 bits. */
1575 HOWTO (R_PPC64_TPREL16_HI,
1576 16, /* rightshift */
1577 1, /* size (0 = byte, 1 = short, 2 = long) */
1578 16, /* bitsize */
1579 FALSE, /* pc_relative */
1580 0, /* bitpos */
f9c6b907 1581 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1582 ppc64_elf_unhandled_reloc, /* special_function */
1583 "R_PPC64_TPREL16_HI", /* name */
1584 FALSE, /* partial_inplace */
1585 0, /* src_mask */
1586 0xffff, /* dst_mask */
1587 FALSE), /* pcrel_offset */
1588
1589 /* Like TPREL16_HI, but adjust for low 16 bits. */
1590 HOWTO (R_PPC64_TPREL16_HA,
1591 16, /* rightshift */
1592 1, /* size (0 = byte, 1 = short, 2 = long) */
1593 16, /* bitsize */
1594 FALSE, /* pc_relative */
1595 0, /* bitpos */
f9c6b907 1596 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1597 ppc64_elf_unhandled_reloc, /* special_function */
1598 "R_PPC64_TPREL16_HA", /* name */
1599 FALSE, /* partial_inplace */
1600 0, /* src_mask */
1601 0xffff, /* dst_mask */
1602 FALSE), /* pcrel_offset */
1603
1604 /* Like TPREL16_HI, but next higher group of 16 bits. */
1605 HOWTO (R_PPC64_TPREL16_HIGHER,
1606 32, /* rightshift */
1607 1, /* size (0 = byte, 1 = short, 2 = long) */
1608 16, /* bitsize */
1609 FALSE, /* pc_relative */
1610 0, /* bitpos */
1611 complain_overflow_dont, /* complain_on_overflow */
1612 ppc64_elf_unhandled_reloc, /* special_function */
1613 "R_PPC64_TPREL16_HIGHER", /* name */
1614 FALSE, /* partial_inplace */
1615 0, /* src_mask */
1616 0xffff, /* dst_mask */
1617 FALSE), /* pcrel_offset */
1618
1619 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1620 HOWTO (R_PPC64_TPREL16_HIGHERA,
1621 32, /* rightshift */
1622 1, /* size (0 = byte, 1 = short, 2 = long) */
1623 16, /* bitsize */
1624 FALSE, /* pc_relative */
1625 0, /* bitpos */
1626 complain_overflow_dont, /* complain_on_overflow */
1627 ppc64_elf_unhandled_reloc, /* special_function */
1628 "R_PPC64_TPREL16_HIGHERA", /* name */
1629 FALSE, /* partial_inplace */
1630 0, /* src_mask */
1631 0xffff, /* dst_mask */
1632 FALSE), /* pcrel_offset */
1633
1634 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1635 HOWTO (R_PPC64_TPREL16_HIGHEST,
1636 48, /* rightshift */
1637 1, /* size (0 = byte, 1 = short, 2 = long) */
1638 16, /* bitsize */
1639 FALSE, /* pc_relative */
1640 0, /* bitpos */
1641 complain_overflow_dont, /* complain_on_overflow */
1642 ppc64_elf_unhandled_reloc, /* special_function */
1643 "R_PPC64_TPREL16_HIGHEST", /* name */
1644 FALSE, /* partial_inplace */
1645 0, /* src_mask */
1646 0xffff, /* dst_mask */
1647 FALSE), /* pcrel_offset */
1648
1649 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1650 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1651 48, /* rightshift */
1652 1, /* size (0 = byte, 1 = short, 2 = long) */
1653 16, /* bitsize */
1654 FALSE, /* pc_relative */
1655 0, /* bitpos */
1656 complain_overflow_dont, /* complain_on_overflow */
1657 ppc64_elf_unhandled_reloc, /* special_function */
1658 "R_PPC64_TPREL16_HIGHESTA", /* name */
1659 FALSE, /* partial_inplace */
1660 0, /* src_mask */
1661 0xffff, /* dst_mask */
1662 FALSE), /* pcrel_offset */
1663
1664 /* Like TPREL16, but for insns with a DS field. */
1665 HOWTO (R_PPC64_TPREL16_DS,
1666 0, /* rightshift */
1667 1, /* size (0 = byte, 1 = short, 2 = long) */
1668 16, /* bitsize */
1669 FALSE, /* pc_relative */
1670 0, /* bitpos */
1671 complain_overflow_signed, /* complain_on_overflow */
1672 ppc64_elf_unhandled_reloc, /* special_function */
1673 "R_PPC64_TPREL16_DS", /* name */
1674 FALSE, /* partial_inplace */
1675 0, /* src_mask */
1676 0xfffc, /* dst_mask */
1677 FALSE), /* pcrel_offset */
1678
1679 /* Like TPREL16_DS, but no overflow. */
1680 HOWTO (R_PPC64_TPREL16_LO_DS,
1681 0, /* rightshift */
1682 1, /* size (0 = byte, 1 = short, 2 = long) */
1683 16, /* bitsize */
1684 FALSE, /* pc_relative */
1685 0, /* bitpos */
1686 complain_overflow_dont, /* complain_on_overflow */
1687 ppc64_elf_unhandled_reloc, /* special_function */
1688 "R_PPC64_TPREL16_LO_DS", /* name */
1689 FALSE, /* partial_inplace */
1690 0, /* src_mask */
1691 0xfffc, /* dst_mask */
1692 FALSE), /* pcrel_offset */
1693
1694 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1695 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1696 to the first entry relative to the TOC base (r2). */
1697 HOWTO (R_PPC64_GOT_TLSGD16,
1698 0, /* rightshift */
1699 1, /* size (0 = byte, 1 = short, 2 = long) */
1700 16, /* bitsize */
1701 FALSE, /* pc_relative */
1702 0, /* bitpos */
1703 complain_overflow_signed, /* complain_on_overflow */
1704 ppc64_elf_unhandled_reloc, /* special_function */
1705 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1706 FALSE, /* partial_inplace */
5bd4f169
AM		 1707 0, /* src_mask */
1708 0xffff, /* dst_mask */
b34976b6 1709 FALSE), /* pcrel_offset */
5bd4f169 1710
411e1bfb
AM		 1711 /* Like GOT_TLSGD16, but no overflow. */
1712 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1713 0, /* rightshift */
1714 1, /* size (0 = byte, 1 = short, 2 = long) */
1715 16, /* bitsize */
b34976b6 1716 FALSE, /* pc_relative */
5bd4f169
AM		 1717 0, /* bitpos */
1718 complain_overflow_dont, /* complain_on_overflow */
805fc799 1719 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1720 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1721 FALSE, /* partial_inplace */
5bd4f169
AM		 1722 0, /* src_mask */
1723 0xffff, /* dst_mask */
b34976b6 1724 FALSE), /* pcrel_offset */
5bd4f169 1725
411e1bfb
AM		 1726 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1727 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1728 16, /* rightshift */
1729 1, /* size (0 = byte, 1 = short, 2 = long) */
1730 16, /* bitsize */
b34976b6 1731 FALSE, /* pc_relative */
5bd4f169 1732 0, /* bitpos */
f9c6b907 1733 complain_overflow_signed, /* complain_on_overflow */
805fc799 1734 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1735 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1736 FALSE, /* partial_inplace */
5bd4f169
AM		 1737 0, /* src_mask */
1738 0xffff, /* dst_mask */
b34976b6 1739 FALSE), /* pcrel_offset */
5bd4f169 1740
411e1bfb
AM		 1741 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1742 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1743 16, /* rightshift */
1744 1, /* size (0 = byte, 1 = short, 2 = long) */
1745 16, /* bitsize */
b34976b6 1746 FALSE, /* pc_relative */
5bd4f169 1747 0, /* bitpos */
f9c6b907 1748 complain_overflow_signed, /* complain_on_overflow */
805fc799 1749 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1750 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1751 FALSE, /* partial_inplace */
5bd4f169
AM		 1752 0, /* src_mask */
1753 0xffff, /* dst_mask */
b34976b6 1754 FALSE), /* pcrel_offset */
5bd4f169 1755
411e1bfb
AM		 1756 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1757 with values (sym+add)@dtpmod and zero, and computes the offset to the
1758 first entry relative to the TOC base (r2). */
1759 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1760 0, /* rightshift */
1761 1, /* size (0 = byte, 1 = short, 2 = long) */
1762 16, /* bitsize */
b34976b6 1763 FALSE, /* pc_relative */
5bd4f169 1764 0, /* bitpos */
411e1bfb
AM		 1765 complain_overflow_signed, /* complain_on_overflow */
1766 ppc64_elf_unhandled_reloc, /* special_function */
1767 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1768 FALSE, /* partial_inplace */
d006db6c 1769 0, /* src_mask */
411e1bfb 1770 0xffff, /* dst_mask */
b34976b6 1771 FALSE), /* pcrel_offset */
5bd4f169 1772
411e1bfb
AM		 1773 /* Like GOT_TLSLD16, but no overflow. */
1774 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1775 0, /* rightshift */
1776 1, /* size (0 = byte, 1 = short, 2 = long) */
1777 16, /* bitsize */
b34976b6 1778 FALSE, /* pc_relative */
5bd4f169 1779 0, /* bitpos */
411e1bfb
AM		 1780 complain_overflow_dont, /* complain_on_overflow */
1781 ppc64_elf_unhandled_reloc, /* special_function */
1782 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1783 FALSE, /* partial_inplace */
d006db6c 1784 0, /* src_mask */
411e1bfb 1785 0xffff, /* dst_mask */
b34976b6 1786 FALSE), /* pcrel_offset */
5bd4f169 1787
411e1bfb
AM		 1788 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1789 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1790 16, /* rightshift */
5bd4f169
AM		 1791 1, /* size (0 = byte, 1 = short, 2 = long) */
1792 16, /* bitsize */
b34976b6 1793 FALSE, /* pc_relative */
5bd4f169 1794 0, /* bitpos */
f9c6b907 1795 complain_overflow_signed, /* complain_on_overflow */
805fc799 1796 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1797 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1798 FALSE, /* partial_inplace */
d006db6c 1799 0, /* src_mask */
411e1bfb 1800 0xffff, /* dst_mask */
b34976b6 1801 FALSE), /* pcrel_offset */
5bd4f169 1802
411e1bfb
AM		 1803 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1804 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1805 16, /* rightshift */
5bd4f169
AM		 1806 1, /* size (0 = byte, 1 = short, 2 = long) */
1807 16, /* bitsize */
b34976b6 1808 FALSE, /* pc_relative */
5bd4f169 1809 0, /* bitpos */
f9c6b907 1810 complain_overflow_signed, /* complain_on_overflow */
805fc799 1811 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1812 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1813 FALSE, /* partial_inplace */
d006db6c 1814 0, /* src_mask */
411e1bfb 1815 0xffff, /* dst_mask */
b34976b6 1816 FALSE), /* pcrel_offset */
5bd4f169 1817
411e1bfb
AM		 1818 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1819 the offset to the entry relative to the TOC base (r2). */
1820 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1821 0, /* rightshift */
1822 1, /* size (0 = byte, 1 = short, 2 = long) */
1823 16, /* bitsize */
b34976b6 1824 FALSE, /* pc_relative */
5bd4f169 1825 0, /* bitpos */
411e1bfb 1826 complain_overflow_signed, /* complain_on_overflow */
805fc799 1827 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1828 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1829 FALSE, /* partial_inplace */
d006db6c 1830 0, /* src_mask */
5bd4f169 1831 0xfffc, /* dst_mask */
b34976b6 1832 FALSE), /* pcrel_offset */
5bd4f169 1833
411e1bfb
AM		 1834 /* Like GOT_DTPREL16_DS, but no overflow. */
1835 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1836 0, /* rightshift */
c061c2d8
AM		 1837 1, /* size (0 = byte, 1 = short, 2 = long) */
1838 16, /* bitsize */
b34976b6 1839 FALSE, /* pc_relative */
5bd4f169 1840 0, /* bitpos */
411e1bfb
AM		 1841 complain_overflow_dont, /* complain_on_overflow */
1842 ppc64_elf_unhandled_reloc, /* special_function */
1843 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1844 FALSE, /* partial_inplace */
d006db6c 1845 0, /* src_mask */
c061c2d8 1846 0xfffc, /* dst_mask */
b34976b6 1847 FALSE), /* pcrel_offset */
5bd4f169 1848
411e1bfb
AM		 1849 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1850 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1851 16, /* rightshift */
5bd4f169
AM		 1852 1, /* size (0 = byte, 1 = short, 2 = long) */
1853 16, /* bitsize */
b34976b6 1854 FALSE, /* pc_relative */
5bd4f169 1855 0, /* bitpos */
f9c6b907 1856 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1857 ppc64_elf_unhandled_reloc, /* special_function */
1858 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1859 FALSE, /* partial_inplace */
d006db6c 1860 0, /* src_mask */
411e1bfb 1861 0xffff, /* dst_mask */
b34976b6 1862 FALSE), /* pcrel_offset */
5bd4f169 1863
411e1bfb
AM		 1864 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1865 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1866 16, /* rightshift */
1867 1, /* size (0 = byte, 1 = short, 2 = long) */
1868 16, /* bitsize */
1869 FALSE, /* pc_relative */
1870 0, /* bitpos */
f9c6b907 1871 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1872 ppc64_elf_unhandled_reloc, /* special_function */
1873 "R_PPC64_GOT_DTPREL16_HA", /* name */
1874 FALSE, /* partial_inplace */
1875 0, /* src_mask */
1876 0xffff, /* dst_mask */
1877 FALSE), /* pcrel_offset */
1878
1879 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1880 offset to the entry relative to the TOC base (r2). */
1881 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1882 0, /* rightshift */
1883 1, /* size (0 = byte, 1 = short, 2 = long) */
1884 16, /* bitsize */
b34976b6 1885 FALSE, /* pc_relative */
5bd4f169
AM		 1886 0, /* bitpos */
1887 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1888 ppc64_elf_unhandled_reloc, /* special_function */
1889 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1890 FALSE, /* partial_inplace */
d006db6c 1891 0, /* src_mask */
ad8e1ba5 1892 0xfffc, /* dst_mask */
b34976b6 1893 FALSE), /* pcrel_offset */
5bd4f169 1894
411e1bfb
AM		 1895 /* Like GOT_TPREL16_DS, but no overflow. */
1896 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1897 0, /* rightshift */
1898 1, /* size (0 = byte, 1 = short, 2 = long) */
1899 16, /* bitsize */
b34976b6 1900 FALSE, /* pc_relative */
5bd4f169
AM		 1901 0, /* bitpos */
1902 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1903 ppc64_elf_unhandled_reloc, /* special_function */
1904 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1905 FALSE, /* partial_inplace */
d006db6c 1906 0, /* src_mask */
ad8e1ba5 1907 0xfffc, /* dst_mask */
b34976b6 1908 FALSE), /* pcrel_offset */
5bd4f169 1909
411e1bfb
AM		 1910 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1911 HOWTO (R_PPC64_GOT_TPREL16_HI,
1912 16, /* rightshift */
5bd4f169
AM		 1913 1, /* size (0 = byte, 1 = short, 2 = long) */
1914 16, /* bitsize */
b34976b6 1915 FALSE, /* pc_relative */
5bd4f169 1916 0, /* bitpos */
f9c6b907 1917 complain_overflow_signed, /* complain_on_overflow */
805fc799 1918 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1919 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1920 FALSE, /* partial_inplace */
d006db6c 1921 0, /* src_mask */
411e1bfb 1922 0xffff, /* dst_mask */
b34976b6 1923 FALSE), /* pcrel_offset */
5bd4f169 1924
411e1bfb
AM		 1925 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1926 HOWTO (R_PPC64_GOT_TPREL16_HA,
1927 16, /* rightshift */
5bd4f169
AM		 1928 1, /* size (0 = byte, 1 = short, 2 = long) */
1929 16, /* bitsize */
b34976b6 1930 FALSE, /* pc_relative */
5bd4f169 1931 0, /* bitpos */
f9c6b907 1932 complain_overflow_signed, /* complain_on_overflow */
805fc799 1933 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1934 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1935 FALSE, /* partial_inplace */
d006db6c 1936 0, /* src_mask */
411e1bfb 1937 0xffff, /* dst_mask */
b34976b6 1938 FALSE), /* pcrel_offset */
5bd4f169 1939
25f23106
AM		 1940 HOWTO (R_PPC64_JMP_IREL, /* type */
1941 0, /* rightshift */
1942 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1943 0, /* bitsize */
1944 FALSE, /* pc_relative */
1945 0, /* bitpos */
1946 complain_overflow_dont, /* complain_on_overflow */
1947 ppc64_elf_unhandled_reloc, /* special_function */
1948 "R_PPC64_JMP_IREL", /* name */
1949 FALSE, /* partial_inplace */
1950 0, /* src_mask */
1951 0, /* dst_mask */
1952 FALSE), /* pcrel_offset */
1953
e054468f
AM		 1954 HOWTO (R_PPC64_IRELATIVE, /* type */
1955 0, /* rightshift */
1956 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1957 64, /* bitsize */
1958 FALSE, /* pc_relative */
1959 0, /* bitpos */
1960 complain_overflow_dont, /* complain_on_overflow */
1961 bfd_elf_generic_reloc, /* special_function */
1962 "R_PPC64_IRELATIVE", /* name */
1963 FALSE, /* partial_inplace */
1964 0, /* src_mask */
1965 ONES (64), /* dst_mask */
1966 FALSE), /* pcrel_offset */
1967
25f23106
AM		 1968 /* A 16 bit relative relocation. */
1969 HOWTO (R_PPC64_REL16, /* type */
1970 0, /* rightshift */
1971 1, /* size (0 = byte, 1 = short, 2 = long) */
1972 16, /* bitsize */
1973 TRUE, /* pc_relative */
1974 0, /* bitpos */
b80eed39 1975 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 1976 bfd_elf_generic_reloc, /* special_function */
1977 "R_PPC64_REL16", /* name */
1978 FALSE, /* partial_inplace */
1979 0, /* src_mask */
1980 0xffff, /* dst_mask */
1981 TRUE), /* pcrel_offset */
1982
1983 /* A 16 bit relative relocation without overflow. */
1984 HOWTO (R_PPC64_REL16_LO, /* type */
1985 0, /* rightshift */
1986 1, /* size (0 = byte, 1 = short, 2 = long) */
1987 16, /* bitsize */
1988 TRUE, /* pc_relative */
1989 0, /* bitpos */
1990 complain_overflow_dont,/* complain_on_overflow */
1991 bfd_elf_generic_reloc, /* special_function */
1992 "R_PPC64_REL16_LO", /* name */
1993 FALSE, /* partial_inplace */
1994 0, /* src_mask */
1995 0xffff, /* dst_mask */
1996 TRUE), /* pcrel_offset */
1997
1998 /* The high order 16 bits of a relative address. */
1999 HOWTO (R_PPC64_REL16_HI, /* type */
2000 16, /* rightshift */
2001 1, /* size (0 = byte, 1 = short, 2 = long) */
2002 16, /* bitsize */
2003 TRUE, /* pc_relative */
2004 0, /* bitpos */
f9c6b907 2005 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 2006 bfd_elf_generic_reloc, /* special_function */
2007 "R_PPC64_REL16_HI", /* name */
2008 FALSE, /* partial_inplace */
2009 0, /* src_mask */
2010 0xffff, /* dst_mask */
2011 TRUE), /* pcrel_offset */
2012
2013 /* The high order 16 bits of a relative address, plus 1 if the contents of
2014 the low 16 bits, treated as a signed number, is negative. */
2015 HOWTO (R_PPC64_REL16_HA, /* type */
2016 16, /* rightshift */
2017 1, /* size (0 = byte, 1 = short, 2 = long) */
2018 16, /* bitsize */
2019 TRUE, /* pc_relative */
2020 0, /* bitpos */
f9c6b907 2021 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 2022 ppc64_elf_ha_reloc, /* special_function */
2023 "R_PPC64_REL16_HA", /* name */
2024 FALSE, /* partial_inplace */
2025 0, /* src_mask */
2026 0xffff, /* dst_mask */
2027 TRUE), /* pcrel_offset */
2028
a680de9a
PB		 2029 /* Like R_PPC64_REL16_HA but for split field in addpcis. */
2030 HOWTO (R_PPC64_REL16DX_HA, /* type */
2031 16, /* rightshift */
2032 2, /* size (0 = byte, 1 = short, 2 = long) */
2033 16, /* bitsize */
2034 TRUE, /* pc_relative */
2035 0, /* bitpos */
2036 complain_overflow_signed, /* complain_on_overflow */
2037 ppc64_elf_ha_reloc, /* special_function */
2038 "R_PPC64_REL16DX_HA", /* name */
2039 FALSE, /* partial_inplace */
2040 0, /* src_mask */
2041 0x1fffc1, /* dst_mask */
2042 TRUE), /* pcrel_offset */
2043
f9c6b907
AM		 2044 /* Like R_PPC64_ADDR16_HI, but no overflow. */
2045 HOWTO (R_PPC64_ADDR16_HIGH, /* type */
2046 16, /* rightshift */
2047 1, /* size (0 = byte, 1 = short, 2 = long) */
2048 16, /* bitsize */
2049 FALSE, /* pc_relative */
2050 0, /* bitpos */
2051 complain_overflow_dont, /* complain_on_overflow */
2052 bfd_elf_generic_reloc, /* special_function */
2053 "R_PPC64_ADDR16_HIGH", /* name */
2054 FALSE, /* partial_inplace */
2055 0, /* src_mask */
2056 0xffff, /* dst_mask */
2057 FALSE), /* pcrel_offset */
2058
2059 /* Like R_PPC64_ADDR16_HA, but no overflow. */
2060 HOWTO (R_PPC64_ADDR16_HIGHA, /* type */
2061 16, /* rightshift */
2062 1, /* size (0 = byte, 1 = short, 2 = long) */
2063 16, /* bitsize */
2064 FALSE, /* pc_relative */
2065 0, /* bitpos */
2066 complain_overflow_dont, /* complain_on_overflow */
2067 ppc64_elf_ha_reloc, /* special_function */
2068 "R_PPC64_ADDR16_HIGHA", /* name */
2069 FALSE, /* partial_inplace */
2070 0, /* src_mask */
2071 0xffff, /* dst_mask */
2072 FALSE), /* pcrel_offset */
2073
2074 /* Like R_PPC64_DTPREL16_HI, but no overflow. */
2075 HOWTO (R_PPC64_DTPREL16_HIGH,
2076 16, /* rightshift */
2077 1, /* size (0 = byte, 1 = short, 2 = long) */
2078 16, /* bitsize */
2079 FALSE, /* pc_relative */
2080 0, /* bitpos */
2081 complain_overflow_dont, /* complain_on_overflow */
2082 ppc64_elf_unhandled_reloc, /* special_function */
2083 "R_PPC64_DTPREL16_HIGH", /* name */
2084 FALSE, /* partial_inplace */
2085 0, /* src_mask */
2086 0xffff, /* dst_mask */
2087 FALSE), /* pcrel_offset */
2088
2089 /* Like R_PPC64_DTPREL16_HA, but no overflow. */
2090 HOWTO (R_PPC64_DTPREL16_HIGHA,
2091 16, /* rightshift */
2092 1, /* size (0 = byte, 1 = short, 2 = long) */
2093 16, /* bitsize */
2094 FALSE, /* pc_relative */
2095 0, /* bitpos */
2096 complain_overflow_dont, /* complain_on_overflow */
2097 ppc64_elf_unhandled_reloc, /* special_function */
2098 "R_PPC64_DTPREL16_HIGHA", /* name */
2099 FALSE, /* partial_inplace */
2100 0, /* src_mask */
2101 0xffff, /* dst_mask */
2102 FALSE), /* pcrel_offset */
2103
2104 /* Like R_PPC64_TPREL16_HI, but no overflow. */
2105 HOWTO (R_PPC64_TPREL16_HIGH,
2106 16, /* rightshift */
2107 1, /* size (0 = byte, 1 = short, 2 = long) */
2108 16, /* bitsize */
2109 FALSE, /* pc_relative */
2110 0, /* bitpos */
2111 complain_overflow_dont, /* complain_on_overflow */
2112 ppc64_elf_unhandled_reloc, /* special_function */
2113 "R_PPC64_TPREL16_HIGH", /* name */
2114 FALSE, /* partial_inplace */
2115 0, /* src_mask */
2116 0xffff, /* dst_mask */
2117 FALSE), /* pcrel_offset */
2118
2119 /* Like R_PPC64_TPREL16_HA, but no overflow. */
2120 HOWTO (R_PPC64_TPREL16_HIGHA,
2121 16, /* rightshift */
2122 1, /* size (0 = byte, 1 = short, 2 = long) */
2123 16, /* bitsize */
2124 FALSE, /* pc_relative */
2125 0, /* bitpos */
2126 complain_overflow_dont, /* complain_on_overflow */
2127 ppc64_elf_unhandled_reloc, /* special_function */
2128 "R_PPC64_TPREL16_HIGHA", /* name */
2129 FALSE, /* partial_inplace */
2130 0, /* src_mask */
2131 0xffff, /* dst_mask */
2132 FALSE), /* pcrel_offset */
2133
006589cf
AM		 2134 /* Marker reloc on ELFv2 large-model function entry. */
2135 HOWTO (R_PPC64_ENTRY,
2136 0, /* rightshift */
2137 2, /* size (0 = byte, 1 = short, 2 = long) */
2138 32, /* bitsize */
2139 FALSE, /* pc_relative */
2140 0, /* bitpos */
2141 complain_overflow_dont, /* complain_on_overflow */
2142 bfd_elf_generic_reloc, /* special_function */
2143 "R_PPC64_ENTRY", /* name */
2144 FALSE, /* partial_inplace */
2145 0, /* src_mask */
2146 0, /* dst_mask */
2147 FALSE), /* pcrel_offset */
2148
45965137
AM		 2149 /* Like ADDR64, but use local entry point of function. */
2150 HOWTO (R_PPC64_ADDR64_LOCAL, /* type */
2151 0, /* rightshift */
2152 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
2153 64, /* bitsize */
2154 FALSE, /* pc_relative */
2155 0, /* bitpos */
2156 complain_overflow_dont, /* complain_on_overflow */
2157 bfd_elf_generic_reloc, /* special_function */
2158 "R_PPC64_ADDR64_LOCAL", /* name */
2159 FALSE, /* partial_inplace */
2160 0, /* src_mask */
2161 ONES (64), /* dst_mask */
2162 FALSE), /* pcrel_offset */
2163
5bd4f169
AM		 2164 /* GNU extension to record C++ vtable hierarchy. */
2165 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
2166 0, /* rightshift */
2167 0, /* size (0 = byte, 1 = short, 2 = long) */
2168 0, /* bitsize */
b34976b6 2169 FALSE, /* pc_relative */
5bd4f169
AM		 2170 0, /* bitpos */
2171 complain_overflow_dont, /* complain_on_overflow */
2172 NULL, /* special_function */
2173 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 2174 FALSE, /* partial_inplace */
5bd4f169
AM		 2175 0, /* src_mask */
2176 0, /* dst_mask */
b34976b6 2177 FALSE), /* pcrel_offset */
5bd4f169
AM		 2178
2179 /* GNU extension to record C++ vtable member usage. */
2180 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
2181 0, /* rightshift */
2182 0, /* size (0 = byte, 1 = short, 2 = long) */
2183 0, /* bitsize */
b34976b6 2184 FALSE, /* pc_relative */
5bd4f169
AM		 2185 0, /* bitpos */
2186 complain_overflow_dont, /* complain_on_overflow */
2187 NULL, /* special_function */
2188 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 2189 FALSE, /* partial_inplace */
5bd4f169
AM		 2190 0, /* src_mask */
2191 0, /* dst_mask */
b34976b6 2192 FALSE), /* pcrel_offset */
5bd4f169
AM		 2193};
2194
2195\f
2196/* Initialize the ppc64_elf_howto_table, so that linear accesses can
2197 be done. */
2198
2199static void
4ce794b7 2200ppc_howto_init (void)
5bd4f169
AM		 2201{
2202 unsigned int i, type;
2203
a4b6fadd 2204 for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++)
5bd4f169
AM		 2205 {
2206 type = ppc64_elf_howto_raw[i].type;
a4b6fadd 2207 BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table));
5bd4f169
AM		 2208 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
2209 }
2210}
2211
2212static reloc_howto_type *
4ce794b7
AM		 2213ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2214 bfd_reloc_code_real_type code)
5bd4f169 2215{
411e1bfb 2216 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 2217
2218 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2219 /* Initialize howto table if needed. */
2220 ppc_howto_init ();
2221
4ce794b7 2222 switch (code)
5bd4f169
AM		 2223 {
2224 default:
4ce794b7 2225 return NULL;
5bd4f169 2226
411e1bfb
AM		 2227 case BFD_RELOC_NONE: r = R_PPC64_NONE;
2228 break;
2229 case BFD_RELOC_32: r = R_PPC64_ADDR32;
2230 break;
2231 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
2232 break;
2233 case BFD_RELOC_16: r = R_PPC64_ADDR16;
2234 break;
2235 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
2236 break;
2237 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
2238 break;
f9c6b907
AM		 2239 case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH;
2240 break;
411e1bfb 2241 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 2242 break;
f9c6b907
AM		 2243 case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA;
2244 break;
411e1bfb 2245 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 2246 break;
411e1bfb 2247 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 2248 break;
411e1bfb 2249 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 2250 break;
411e1bfb 2251 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 2252 break;
411e1bfb 2253 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 2254 break;
411e1bfb 2255 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 2256 break;
411e1bfb 2257 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 2258 break;
411e1bfb 2259 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 2260 break;
411e1bfb 2261 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 2262 break;
411e1bfb 2263 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 2264 break;
411e1bfb 2265 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 2266 break;
411e1bfb 2267 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 2268 break;
411e1bfb 2269 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 2270 break;
411e1bfb 2271 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 2272 break;
411e1bfb 2273 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 2274 break;
411e1bfb 2275 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 2276 break;
411e1bfb 2277 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 2278 break;
411e1bfb 2279 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 2280 break;
411e1bfb 2281 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 2282 break;
411e1bfb 2283 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 2284 break;
411e1bfb 2285 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 2286 break;
411e1bfb 2287 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 2288 break;
411e1bfb 2289 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 2290 break;
411e1bfb 2291 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 2292 break;
411e1bfb 2293 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 2294 break;
411e1bfb 2295 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 2296 break;
411e1bfb 2297 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 2298 break;
411e1bfb 2299 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 2300 break;
411e1bfb 2301 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 2302 break;
411e1bfb 2303 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 2304 break;
411e1bfb 2305 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 2306 break;
411e1bfb 2307 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 2308 break;
411e1bfb 2309 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 2310 break;
411e1bfb 2311 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 2312 break;
411e1bfb 2313 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 2314 break;
411e1bfb 2315 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 2316 break;
411e1bfb 2317 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 2318 break;
411e1bfb 2319 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 2320 break;
411e1bfb 2321 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 2322 break;
411e1bfb 2323 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 2324 break;
411e1bfb 2325 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 2326 break;
411e1bfb 2327 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 2328 break;
411e1bfb 2329 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 2330 break;
411e1bfb 2331 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 2332 break;
411e1bfb 2333 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 2334 break;
411e1bfb 2335 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 2336 break;
411e1bfb 2337 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2338 break;
411e1bfb 2339 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2340 break;
411e1bfb 2341 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2342 break;
411e1bfb 2343 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2344 break;
411e1bfb 2345 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2346 break;
411e1bfb 2347 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2348 break;
411e1bfb 2349 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2350 break;
727fc41e
AM		 2351 case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD;
2352 break;
2353 case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD;
2354 break;
411e1bfb 2355 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2356 break;
411e1bfb 2357 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2358 break;
411e1bfb 2359 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2360 break;
411e1bfb 2361 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2362 break;
f9c6b907
AM		 2363 case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH;
2364 break;
411e1bfb 2365 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2366 break;
f9c6b907
AM		 2367 case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA;
2368 break;
411e1bfb 2369 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2370 break;
411e1bfb
AM		 2371 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2372 break;
2373 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2374 break;
2375 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2376 break;
f9c6b907
AM		 2377 case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH;
2378 break;
411e1bfb
AM		 2379 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2380 break;
f9c6b907
AM		 2381 case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA;
2382 break;
411e1bfb
AM		 2383 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2384 break;
2385 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2386 break;
2387 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2388 break;
2389 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2390 break;
2391 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2392 break;
2393 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2394 break;
2395 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2396 break;
2397 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2398 break;
2399 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2400 break;
2401 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2402 break;
2403 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2404 break;
2405 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2406 break;
2407 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2408 break;
2409 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2410 break;
2411 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2412 break;
2413 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2414 break;
2415 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2416 break;
2417 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2418 break;
2419 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2420 break;
2421 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2422 break;
2423 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2424 break;
2425 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2426 break;
2427 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2428 break;
2429 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2430 break;
2431 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2432 break;
2433 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2434 break;
2435 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2436 break;
2437 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2438 break;
2439 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2440 break;
25f23106
AM		 2441 case BFD_RELOC_16_PCREL: r = R_PPC64_REL16;
2442 break;
2443 case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO;
2444 break;
2445 case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI;
2446 break;
2447 case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA;
2448 break;
a680de9a
PB		 2449 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA;
2450 break;
006589cf
AM		 2451 case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY;
2452 break;
45965137
AM		 2453 case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL;
2454 break;
411e1bfb
AM		 2455 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2456 break;
2457 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2458 break;
2459 }
2460
4ce794b7 2461 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2462};
2463
157090f7
AM		 2464static reloc_howto_type *
2465ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2466 const char *r_name)
2467{
2468 unsigned int i;
2469
a4b6fadd 2470 for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++)
157090f7
AM		 2471 if (ppc64_elf_howto_raw[i].name != NULL
2472 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2473 return &ppc64_elf_howto_raw[i];
2474
2475 return NULL;
2476}
2477
5bd4f169
AM		 2478/* Set the howto pointer for a PowerPC ELF reloc. */
2479
2480static void
4ce794b7
AM		 2481ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2482 Elf_Internal_Rela *dst)
5bd4f169 2483{
65f38f15
AM		 2484 unsigned int type;
2485
ef60b7ff 2486 /* Initialize howto table if needed. */
5bd4f169 2487 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2488 ppc_howto_init ();
2489
65f38f15 2490 type = ELF64_R_TYPE (dst->r_info);
a4b6fadd 2491 if (type >= ARRAY_SIZE (ppc64_elf_howto_table))
d0fb9a8d 2492 {
695344c0 2493 /* xgettext:c-format */
4eca0228
AM		 2494 _bfd_error_handler (_("%B: invalid relocation type %d"),
2495 abfd, (int) type);
3ec2b351 2496 type = R_PPC64_NONE;
d0fb9a8d 2497 }
65f38f15 2498 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2499}
2500
04c9666a 2501/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2502
2503static bfd_reloc_status_type
4ce794b7
AM		 2504ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2505 void *data, asection *input_section,
2506 bfd *output_bfd, char **error_message)
5bd4f169 2507{
a680de9a
PB		 2508 enum elf_ppc64_reloc_type r_type;
2509 long insn;
2510 bfd_size_type octets;
2511 bfd_vma value;
2512
805fc799
AM		 2513 /* If this is a relocatable link (output_bfd test tells us), just
2514 call the generic function. Any adjustment will be done at final
2515 link time. */
2516 if (output_bfd != NULL)
cedb70c5 2517 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2518 input_section, output_bfd, error_message);
2519
2520 /* Adjust the addend for sign extension of the low 16 bits.
2521 We won't actually be using the low 16 bits, so trashing them
2522 doesn't matter. */
2523 reloc_entry->addend += 0x8000;
a680de9a
PB		 2524 r_type = reloc_entry->howto->type;
2525 if (r_type != R_PPC64_REL16DX_HA)
2526 return bfd_reloc_continue;
2527
2528 value = 0;
2529 if (!bfd_is_com_section (symbol->section))
2530 value = symbol->value;
2531 value += (reloc_entry->addend
2532 + symbol->section->output_offset
2533 + symbol->section->output_section->vma);
2534 value -= (reloc_entry->address
2535 + input_section->output_offset
2536 + input_section->output_section->vma);
2537 value = (bfd_signed_vma) value >> 16;
2538
2539 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2540 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2541 insn &= ~0x1fffc1;
2542 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2543 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2544 if (value + 0x8000 > 0xffff)
2545 return bfd_reloc_overflow;
2546 return bfd_reloc_ok;
805fc799 2547}
5bd4f169 2548
2441e016
AM		 2549static bfd_reloc_status_type
2550ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2551 void *data, asection *input_section,
2552 bfd *output_bfd, char **error_message)
2553{
2554 if (output_bfd != NULL)
2555 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2556 input_section, output_bfd, error_message);
2557
699733f6
AM		 2558 if (strcmp (symbol->section->name, ".opd") == 0
2559 && (symbol->section->owner->flags & DYNAMIC) == 0)
2441e016
AM		 2560 {
2561 bfd_vma dest = opd_entry_value (symbol->section,
2562 symbol->value + reloc_entry->addend,
aef36ac1 2563 NULL, NULL, FALSE);
2441e016
AM		 2564 if (dest != (bfd_vma) -1)
2565 reloc_entry->addend = dest - (symbol->value
2566 + symbol->section->output_section->vma
2567 + symbol->section->output_offset);
2568 }
810d4e75
AM		 2569 else
2570 {
2571 elf_symbol_type *elfsym = (elf_symbol_type *) symbol;
2572
2573 if (symbol->section->owner != abfd
9f284bf9 2574 && symbol->section->owner != NULL
810d4e75
AM		 2575 && abiversion (symbol->section->owner) >= 2)
2576 {
2577 unsigned int i;
2578
2579 for (i = 0; i < symbol->section->owner->symcount; ++i)
2580 {
2581 asymbol *symdef = symbol->section->owner->outsymbols[i];
2582
2583 if (strcmp (symdef->name, symbol->name) == 0)
2584 {
2585 elfsym = (elf_symbol_type *) symdef;
2586 break;
2587 }
2588 }
2589 }
2590 reloc_entry->addend
2591 += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other);
2592 }
2441e016
AM		 2593 return bfd_reloc_continue;
2594}
2595
805fc799 2596static bfd_reloc_status_type
4ce794b7
AM		 2597ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2598 void *data, asection *input_section,
2599 bfd *output_bfd, char **error_message)
805fc799
AM		 2600{
2601 long insn;
04c9666a 2602 enum elf_ppc64_reloc_type r_type;
805fc799 2603 bfd_size_type octets;
794e51c0
AM		 2604 /* Assume 'at' branch hints. */
2605 bfd_boolean is_isa_v2 = TRUE;
805fc799
AM		 2606
2607 /* If this is a relocatable link (output_bfd test tells us), just
2608 call the generic function. Any adjustment will be done at final
2609 link time. */
5bd4f169 2610 if (output_bfd != NULL)
cedb70c5 2611 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2612 input_section, output_bfd, error_message);
2613
2614 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2615 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2616 insn &= ~(0x01 << 21);
4ce794b7 2617 r_type = reloc_entry->howto->type;
805fc799
AM		 2618 if (r_type == R_PPC64_ADDR14_BRTAKEN
2619 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2620 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799 2621
794e51c0 2622 if (is_isa_v2)
5bd4f169 2623 {
805fc799
AM		 2624 /* Set 'a' bit. This is 0b00010 in BO field for branch
2625 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2626 for branch on CTR insns (BO == 1a00t or 1a01t). */
2627 if ((insn & (0x14 << 21)) == (0x04 << 21))
2628 insn |= 0x02 << 21;
2629 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2630 insn |= 0x08 << 21;
2631 else
2441e016 2632 goto out;
5bd4f169 2633 }
805fc799
AM		 2634 else
2635 {
2636 bfd_vma target = 0;
2637 bfd_vma from;
5bd4f169 2638
805fc799
AM		 2639 if (!bfd_is_com_section (symbol->section))
2640 target = symbol->value;
2641 target += symbol->section->output_section->vma;
2642 target += symbol->section->output_offset;
2643 target += reloc_entry->addend;
5bd4f169 2644
805fc799
AM		 2645 from = (reloc_entry->address
2646 + input_section->output_offset
2647 + input_section->output_section->vma);
5bd4f169 2648
805fc799
AM		 2649 /* Invert 'y' bit if not the default. */
2650 if ((bfd_signed_vma) (target - from) < 0)
2651 insn ^= 0x01 << 21;
2652 }
4ce794b7 2653 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM		 2654 out:
2655 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2656 input_section, output_bfd, error_message);
805fc799 2657}
5bd4f169 2658
805fc799 2659static bfd_reloc_status_type
4ce794b7
AM		 2660ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2661 void *data, asection *input_section,
2662 bfd *output_bfd, char **error_message)
805fc799
AM		 2663{
2664 /* If this is a relocatable link (output_bfd test tells us), just
2665 call the generic function. Any adjustment will be done at final
2666 link time. */
2667 if (output_bfd != NULL)
cedb70c5 2668 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2669 input_section, output_bfd, error_message);
5bd4f169 2670
805fc799
AM		 2671 /* Subtract the symbol section base address. */
2672 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2673 return bfd_reloc_continue;
2674}
2675
805fc799 2676static bfd_reloc_status_type
4ce794b7
AM		 2677ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2678 void *data, asection *input_section,
2679 bfd *output_bfd, char **error_message)
805fc799
AM		 2680{
2681 /* If this is a relocatable link (output_bfd test tells us), just
2682 call the generic function. Any adjustment will be done at final
2683 link time. */
2684 if (output_bfd != NULL)
cedb70c5 2685 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2686 input_section, output_bfd, error_message);
2687
2688 /* Subtract the symbol section base address. */
2689 reloc_entry->addend -= symbol->section->output_section->vma;
2690
2691 /* Adjust the addend for sign extension of the low 16 bits. */
2692 reloc_entry->addend += 0x8000;
2693 return bfd_reloc_continue;
2694}
2695
2696static bfd_reloc_status_type
4ce794b7
AM		 2697ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2698 void *data, asection *input_section,
2699 bfd *output_bfd, char **error_message)
805fc799
AM		 2700{
2701 bfd_vma TOCstart;
2702
2703 /* If this is a relocatable link (output_bfd test tells us), just
2704 call the generic function. Any adjustment will be done at final
2705 link time. */
2706 if (output_bfd != NULL)
cedb70c5 2707 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2708 input_section, output_bfd, error_message);
2709
2710 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2711 if (TOCstart == 0)
1c865ab2 2712 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2713
2714 /* Subtract the TOC base address. */
2715 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2716 return bfd_reloc_continue;
2717}
2718
2719static bfd_reloc_status_type
4ce794b7
AM		 2720ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2721 void *data, asection *input_section,
2722 bfd *output_bfd, char **error_message)
805fc799
AM		 2723{
2724 bfd_vma TOCstart;
2725
2726 /* If this is a relocatable link (output_bfd test tells us), just
2727 call the generic function. Any adjustment will be done at final
2728 link time. */
2729 if (output_bfd != NULL)
cedb70c5 2730 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2731 input_section, output_bfd, error_message);
2732
2733 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2734 if (TOCstart == 0)
1c865ab2 2735 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2736
2737 /* Subtract the TOC base address. */
2738 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2739
2740 /* Adjust the addend for sign extension of the low 16 bits. */
2741 reloc_entry->addend += 0x8000;
2742 return bfd_reloc_continue;
2743}
2744
2745static bfd_reloc_status_type
4ce794b7
AM		 2746ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2747 void *data, asection *input_section,
2748 bfd *output_bfd, char **error_message)
805fc799
AM		 2749{
2750 bfd_vma TOCstart;
2751 bfd_size_type octets;
2752
2753 /* If this is a relocatable link (output_bfd test tells us), just
2754 call the generic function. Any adjustment will be done at final
2755 link time. */
2756 if (output_bfd != NULL)
cedb70c5 2757 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2758 input_section, output_bfd, error_message);
2759
2760 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2761 if (TOCstart == 0)
1c865ab2 2762 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2763
2764 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2765 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2766 return bfd_reloc_ok;
2767}
2768
2769static bfd_reloc_status_type
4ce794b7
AM		 2770ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2771 void *data, asection *input_section,
2772 bfd *output_bfd, char **error_message)
805fc799
AM		 2773{
2774 /* If this is a relocatable link (output_bfd test tells us), just
2775 call the generic function. Any adjustment will be done at final
2776 link time. */
2777 if (output_bfd != NULL)
cedb70c5 2778 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2779 input_section, output_bfd, error_message);
2780
2781 if (error_message != NULL)
2782 {
2783 static char buf[60];
2784 sprintf (buf, "generic linker can't handle %s",
2785 reloc_entry->howto->name);
2786 *error_message = buf;
2787 }
2788 return bfd_reloc_dangerous;
2789}
2790
927be08e
AM		 2791/* Track GOT entries needed for a given symbol. We might need more
2792 than one got entry per symbol. */
2793struct got_entry
2794{
2795 struct got_entry *next;
2796
2797 /* The symbol addend that we'll be placing in the GOT. */
2798 bfd_vma addend;
2799
2800 /* Unlike other ELF targets, we use separate GOT entries for the same
2801 symbol referenced from different input files. This is to support
2802 automatic multiple TOC/GOT sections, where the TOC base can vary
2803 from one input file to another. After partitioning into TOC groups
2804 we merge entries within the group.
2805
2806 Point to the BFD owning this GOT entry. */
2807 bfd *owner;
2808
2809 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2810 TLS_TPREL or TLS_DTPREL for tls entries. */
f961d9dd 2811 unsigned char tls_type;
927be08e
AM		 2812
2813 /* Non-zero if got.ent points to real entry. */
f961d9dd 2814 unsigned char is_indirect;
927be08e
AM		 2815
2816 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2817 union
2818 {
2819 bfd_signed_vma refcount;
2820 bfd_vma offset;
2821 struct got_entry *ent;
2822 } got;
2823};
2824
2825/* The same for PLT. */
2826struct plt_entry
2827{
2828 struct plt_entry *next;
2829
2830 bfd_vma addend;
2831
2832 union
2833 {
2834 bfd_signed_vma refcount;
2835 bfd_vma offset;
2836 } plt;
2837};
2838
e717da7e
AM		 2839struct ppc64_elf_obj_tdata
2840{
2841 struct elf_obj_tdata elf;
2842
2843 /* Shortcuts to dynamic linker sections. */
2844 asection *got;
2845 asection *relgot;
2846
b3fac117
AM		 2847 /* Used during garbage collection. We attach global symbols defined
2848 on removed .opd entries to this section so that the sym is removed. */
2849 asection *deleted_section;
81688140 2850
927be08e 2851 /* TLS local dynamic got entry handling. Support for multiple GOT
e717da7e 2852 sections means we potentially need one of these for each input bfd. */
927be08e 2853 struct got_entry tlsld_got;
8860955f 2854
729eabd5
AM		 2855 union {
2856 /* A copy of relocs before they are modified for --emit-relocs. */
2857 Elf_Internal_Rela *relocs;
2858
2859 /* Section contents. */
2860 bfd_byte *contents;
2861 } opd;
d77c8a4b
AM		 2862
2863 /* Nonzero if this bfd has small toc/got relocs, ie. that expect
2864 the reloc to be in the range -32768 to 32767. */
98528052
AM		 2865 unsigned int has_small_toc_reloc : 1;
2866
560c8763
AM		 2867 /* Set if toc/got ha relocs detected not using r2, or lo reloc
2868 instruction not one we handle. */
2869 unsigned int unexpected_toc_insn : 1;
e717da7e
AM		 2870};
2871
2872#define ppc64_elf_tdata(bfd) \
2873 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2874
2875#define ppc64_tlsld_got(bfd) \
2876 (&ppc64_elf_tdata (bfd)->tlsld_got)
2877
0c8d6e5c
AM		 2878#define is_ppc64_elf(bfd) \
2879 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2880 && elf_object_id (bfd) == PPC64_ELF_DATA)
0c8d6e5c 2881
e717da7e
AM		 2882/* Override the generic function because we store some extras. */
2883
2884static bfd_boolean
2885ppc64_elf_mkobject (bfd *abfd)
2886{
0ffa91dd 2887 return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata),
4dfe6ac6 2888 PPC64_ELF_DATA);
e717da7e
AM		 2889}
2890
feee612b 2891/* Fix bad default arch selected for a 64 bit input bfd when the
14b57c7c 2892 default is 32 bit. Also select arch based on apuinfo. */
feee612b 2893
b34976b6 2894static bfd_boolean
4ce794b7 2895ppc64_elf_object_p (bfd *abfd)
feee612b 2896{
14b57c7c
AM		 2897 if (!abfd->arch_info->the_default)
2898 return TRUE;
2899
2900 if (abfd->arch_info->bits_per_word == 32)
feee612b
AM		 2901 {
2902 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2903
2904 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2905 {
2906 /* Relies on arch after 32 bit default being 64 bit default. */
2907 abfd->arch_info = abfd->arch_info->next;
2908 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2909 }
2910 }
14b57c7c 2911 return _bfd_elf_ppc_set_arch (abfd);
feee612b
AM		 2912}
2913
d37c89e5
AM		 2914/* Support for core dump NOTE sections. */
2915
2916static bfd_boolean
2917ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2918{
eea6121a 2919 size_t offset, size;
d37c89e5
AM		 2920
2921 if (note->descsz != 504)
2922 return FALSE;
2923
2924 /* pr_cursig */
228e534f 2925 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
d37c89e5
AM		 2926
2927 /* pr_pid */
228e534f 2928 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32);
d37c89e5
AM		 2929
2930 /* pr_reg */
2931 offset = 112;
eea6121a 2932 size = 384;
d37c89e5
AM		 2933
2934 /* Make a ".reg/999" section. */
2935 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2936 size, note->descpos + offset);
d37c89e5
AM		 2937}
2938
2939static bfd_boolean
2940ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2941{
2942 if (note->descsz != 136)
2943 return FALSE;
2944
228e534f 2945 elf_tdata (abfd)->core->pid
bc989cdc 2946 = bfd_get_32 (abfd, note->descdata + 24);
228e534f 2947 elf_tdata (abfd)->core->program
d37c89e5 2948 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
228e534f 2949 elf_tdata (abfd)->core->command
d37c89e5
AM		 2950 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2951
2952 return TRUE;
2953}
2954
183e98be
AM		 2955static char *
2956ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2957 ...)
2958{
2959 switch (note_type)
2960 {
2961 default:
2962 return NULL;
2963
2964 case NT_PRPSINFO:
2965 {
2966 char data[136];
2967 va_list ap;
2968
2969 va_start (ap, note_type);
75cd47ed 2970 memset (data, 0, sizeof (data));
183e98be
AM		 2971 strncpy (data + 40, va_arg (ap, const char *), 16);
2972 strncpy (data + 56, va_arg (ap, const char *), 80);
2973 va_end (ap);
2974 return elfcore_write_note (abfd, buf, bufsiz,
2975 "CORE", note_type, data, sizeof (data));
2976 }
2977
2978 case NT_PRSTATUS:
2979 {
2980 char data[504];
2981 va_list ap;
2982 long pid;
2983 int cursig;
2984 const void *greg;
2985
2986 va_start (ap, note_type);
2987 memset (data, 0, 112);
2988 pid = va_arg (ap, long);
2989 bfd_put_32 (abfd, pid, data + 32);
2990 cursig = va_arg (ap, int);
2991 bfd_put_16 (abfd, cursig, data + 12);
2992 greg = va_arg (ap, const void *);
2993 memcpy (data + 112, greg, 384);
2994 memset (data + 496, 0, 8);
2995 va_end (ap);
2996 return elfcore_write_note (abfd, buf, bufsiz,
2997 "CORE", note_type, data, sizeof (data));
2998 }
2999 }
3000}
3001
5d35169e
AM		 3002/* Add extra PPC sections. */
3003
b35d266b 3004static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
7f4d3958 3005{
0112cd26
NC		 3006 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
3007 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3008 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3009 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3010 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3011 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3012 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 3013};
3014
7c8fe5c4
AM		 3015enum _ppc64_sec_type {
3016 sec_normal = 0,
3017 sec_opd = 1,
3018 sec_toc = 2
3019};
3020
f0abc2a1
AM		 3021struct _ppc64_elf_section_data
3022{
3023 struct bfd_elf_section_data elf;
411e1bfb 3024
f0abc2a1
AM		 3025 union
3026 {
51aecdc5
AM		 3027 /* An array with one entry for each opd function descriptor,
3028 and some spares since opd entries may be either 16 or 24 bytes. */
3029#define OPD_NDX(OFF) ((OFF) >> 4)
74f0fb50
AM		 3030 struct _opd_sec_data
3031 {
3032 /* Points to the function code section for local opd entries. */
3033 asection **func_sec;
3034
3035 /* After editing .opd, adjust references to opd local syms. */
3036 long *adjust;
3037 } opd;
7c8fe5c4 3038
3a71aa26
AM		 3039 /* An array for toc sections, indexed by offset/8. */
3040 struct _toc_sec_data
3041 {
3042 /* Specifies the relocation symbol index used at a given toc offset. */
3043 unsigned *symndx;
3044
3045 /* And the relocation addend. */
3046 bfd_vma *add;
3047 } toc;
7c8fe5c4
AM		 3048 } u;
3049
3050 enum _ppc64_sec_type sec_type:2;
411e1bfb 3051
7c8fe5c4
AM		 3052 /* Flag set when small branches are detected. Used to
3053 select suitable defaults for the stub group size. */
3054 unsigned int has_14bit_branch:1;
f0abc2a1
AM		 3055};
3056
3057#define ppc64_elf_section_data(sec) \
411e1bfb 3058 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 3059
3060static bfd_boolean
4ce794b7 3061ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1 3062{
f592407e
AM		 3063 if (!sec->used_by_bfd)
3064 {
3065 struct _ppc64_elf_section_data *sdata;
3066 bfd_size_type amt = sizeof (*sdata);
f0abc2a1 3067
f592407e
AM		 3068 sdata = bfd_zalloc (abfd, amt);
3069 if (sdata == NULL)
3070 return FALSE;
3071 sec->used_by_bfd = sdata;
3072 }
f0abc2a1
AM		 3073
3074 return _bfd_elf_new_section_hook (abfd, sec);
3075}
4025353c 3076
74f0fb50 3077static struct _opd_sec_data *
4025353c
AM		 3078get_opd_info (asection * sec)
3079{
3080 if (sec != NULL
3081 && ppc64_elf_section_data (sec) != NULL
7c8fe5c4 3082 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
74f0fb50 3083 return &ppc64_elf_section_data (sec)->u.opd;
4025353c
AM		 3084 return NULL;
3085}
90e3cdf2
JJ		 3086\f
3087/* Parameters for the qsort hook. */
90e3cdf2 3088static bfd_boolean synthetic_relocatable;
cd285db5 3089static asection *synthetic_opd;
90e3cdf2 3090
699733f6 3091/* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
90e3cdf2
JJ		 3092
3093static int
3094compare_symbols (const void *ap, const void *bp)
3095{
3096 const asymbol *a = * (const asymbol **) ap;
3097 const asymbol *b = * (const asymbol **) bp;
3098
699733f6
AM		 3099 /* Section symbols first. */
3100 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
90e3cdf2 3101 return -1;
699733f6 3102 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
90e3cdf2
JJ		 3103 return 1;
3104
699733f6 3105 /* then .opd symbols. */
cd285db5
AM		 3106 if (synthetic_opd != NULL)
3107 {
3108 if (strcmp (a->section->name, ".opd") == 0
3109 && strcmp (b->section->name, ".opd") != 0)
3110 return -1;
3111 if (strcmp (a->section->name, ".opd") != 0
3112 && strcmp (b->section->name, ".opd") == 0)
3113 return 1;
3114 }
90e3cdf2 3115
699733f6 3116 /* then other code symbols. */
90e3cdf2
JJ		 3117 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3118 == (SEC_CODE | SEC_ALLOC)
3119 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3120 != (SEC_CODE | SEC_ALLOC))
3121 return -1;
3122
3123 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3124 != (SEC_CODE | SEC_ALLOC)
3125 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3126 == (SEC_CODE | SEC_ALLOC))
3127 return 1;
3128
3129 if (synthetic_relocatable)
3130 {
3131 if (a->section->id < b->section->id)
3132 return -1;
3133
3134 if (a->section->id > b->section->id)
3135 return 1;
3136 }
3137
3138 if (a->value + a->section->vma < b->value + b->section->vma)
3139 return -1;
3140
3141 if (a->value + a->section->vma > b->value + b->section->vma)
3142 return 1;
3143
4d35a0aa
AM		 3144 /* For syms with the same value, prefer strong dynamic global function
3145 syms over other syms. */
3146 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
3147 return -1;
3148
3149 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
3150 return 1;
3151
3152 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
3153 return -1;
3154
3155 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
3156 return 1;
3157
3158 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
3159 return -1;
3160
3161 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
3162 return 1;
3163
3164 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
3165 return -1;
3166
3167 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
3168 return 1;
3169
90e3cdf2
JJ		 3170 return 0;
3171}
3172
699733f6 3173/* Search SYMS for a symbol of the given VALUE. */
90e3cdf2 3174
699733f6 3175static asymbol *
7292b3ac 3176sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value)
90e3cdf2 3177{
699733f6 3178 long mid;
90e3cdf2 3179
7292b3ac 3180 if (id == (unsigned) -1)
699733f6
AM		 3181 {
3182 while (lo < hi)
3183 {
3184 mid = (lo + hi) >> 1;
3185 if (syms[mid]->value + syms[mid]->section->vma < value)
3186 lo = mid + 1;
3187 else if (syms[mid]->value + syms[mid]->section->vma > value)
3188 hi = mid;
3189 else
3190 return syms[mid];
3191 }
3192 }
3193 else
3194 {
3195 while (lo < hi)
3196 {
3197 mid = (lo + hi) >> 1;
3198 if (syms[mid]->section->id < id)
3199 lo = mid + 1;
3200 else if (syms[mid]->section->id > id)
3201 hi = mid;
3202 else if (syms[mid]->value < value)
3203 lo = mid + 1;
3204 else if (syms[mid]->value > value)
3205 hi = mid;
3206 else
3207 return syms[mid];
3208 }
3209 }
3210 return NULL;
90e3cdf2
JJ		 3211}
3212
468392fb
AM		 3213static bfd_boolean
3214section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
3215{
3216 bfd_vma vma = *(bfd_vma *) ptr;
3217 return ((section->flags & SEC_ALLOC) != 0
3218 && section->vma <= vma
3219 && vma < section->vma + section->size);
3220}
3221
699733f6 3222/* Create synthetic symbols, effectively restoring "dot-symbol" function
c4b0b099
AM		 3223 entry syms. Also generate @plt symbols for the glink branch table.
3224 Returns count of synthetic symbols in RET or -1 on error. */
90e3cdf2
JJ		 3225
3226static long
a7535cf3
AM		 3227ppc64_elf_get_synthetic_symtab (bfd *abfd,
3228 long static_count, asymbol **static_syms,
3229 long dyn_count, asymbol **dyn_syms,
c9727e01 3230 asymbol **ret)
90e3cdf2
JJ		 3231{
3232 asymbol *s;
699733f6
AM		 3233 long i;
3234 long count;
90e3cdf2 3235 char *names;
a7535cf3 3236 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
ee67d69a 3237 asection *opd = NULL;
90e3cdf2 3238 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
a7535cf3 3239 asymbol **syms;
ee67d69a 3240 int abi = abiversion (abfd);
90e3cdf2
JJ		 3241
3242 *ret = NULL;
3243
ee67d69a
AM		 3244 if (abi < 2)
3245 {
3246 opd = bfd_get_section_by_name (abfd, ".opd");
3247 if (opd == NULL && abi == 1)
3248 return 0;
3249 }
90e3cdf2 3250
a7535cf3 3251 symcount = static_count;
c9727e01 3252 if (!relocatable)
a7535cf3 3253 symcount += dyn_count;
90e3cdf2 3254 if (symcount == 0)
c9727e01 3255 return 0;
90e3cdf2 3256
a7535cf3
AM		 3257 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
3258 if (syms == NULL)
7356fed5 3259 return -1;
a7535cf3
AM		 3260
3261 if (!relocatable && static_count != 0 && dyn_count != 0)
3262 {
3263 /* Use both symbol tables. */
3264 memcpy (syms, static_syms, static_count * sizeof (*syms));
3265 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
3266 }
3267 else if (!relocatable && static_count == 0)
3268 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
3269 else
3270 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
3271
90e3cdf2 3272 synthetic_relocatable = relocatable;
cd285db5 3273 synthetic_opd = opd;
595da8c5 3274 qsort (syms, symcount, sizeof (*syms), compare_symbols);
90e3cdf2 3275
c9727e01
AM		 3276 if (!relocatable && symcount > 1)
3277 {
3278 long j;
3279 /* Trim duplicate syms, since we may have merged the normal and
3280 dynamic symbols. Actually, we only care about syms that have
3b36f7e6 3281 different values, so trim any with the same value. */
c9727e01
AM		 3282 for (i = 1, j = 1; i < symcount; ++i)
3283 if (syms[i - 1]->value + syms[i - 1]->section->vma
3284 != syms[i]->value + syms[i]->section->vma)
3285 syms[j++] = syms[i];
3286 symcount = j;
3287 }
3288
699733f6 3289 i = 0;
cd285db5
AM		 3290 /* Note that here and in compare_symbols we can't compare opd and
3291 sym->section directly. With separate debug info files, the
3292 symbols will be extracted from the debug file while abfd passed
3293 to this function is the real binary. */
3294 if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0)
699733f6
AM		 3295 ++i;
3296 codesecsym = i;
90e3cdf2 3297
699733f6
AM		 3298 for (; i < symcount; ++i)
3299 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3300 != (SEC_CODE | SEC_ALLOC))
3301 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
3302 break;
3303 codesecsymend = i;
90e3cdf2 3304
699733f6
AM		 3305 for (; i < symcount; ++i)
3306 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
3307 break;
3308 secsymend = i;
90e3cdf2 3309
cd285db5
AM		 3310 if (opd != NULL)
3311 for (; i < symcount; ++i)
3312 if (strcmp (syms[i]->section->name, ".opd") != 0)
3313 break;
699733f6 3314 opdsymend = i;
90e3cdf2 3315
699733f6
AM		 3316 for (; i < symcount; ++i)
3317 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3318 != (SEC_CODE | SEC_ALLOC))
3319 break;
3320 symcount = i;
3321
c9727e01 3322 count = 0;
90e3cdf2 3323
699733f6 3324 if (relocatable)
90e3cdf2 3325 {
699733f6
AM		 3326 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3327 arelent *r;
3328 size_t size;
3329 long relcount;
90e3cdf2 3330
468392fb
AM		 3331 if (opdsymend == secsymend)
3332 goto done;
3333
699733f6 3334 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
90e3cdf2 3335 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
7356fed5 3336 if (relcount == 0)
c9727e01 3337 goto done;
90e3cdf2 3338
7356fed5
AM		 3339 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
3340 {
3341 count = -1;
3342 goto done;
3343 }
3344
699733f6 3345 size = 0;
595da8c5 3346 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
699733f6
AM		 3347 {
3348 asymbol *sym;
90e3cdf2 3349
595da8c5 3350 while (r < opd->relocation + relcount
699733f6
AM		 3351 && r->address < syms[i]->value + opd->vma)
3352 ++r;
90e3cdf2 3353
595da8c5 3354 if (r == opd->relocation + relcount)
699733f6 3355 break;
90e3cdf2 3356
699733f6
AM		 3357 if (r->address != syms[i]->value + opd->vma)
3358 continue;
90e3cdf2 3359
699733f6
AM		 3360 if (r->howto->type != R_PPC64_ADDR64)
3361 continue;
90e3cdf2 3362
699733f6
AM		 3363 sym = *r->sym_ptr_ptr;
3364 if (!sym_exists_at (syms, opdsymend, symcount,
3365 sym->section->id, sym->value + r->addend))
3366 {
3367 ++count;
3368 size += sizeof (asymbol);
3369 size += strlen (syms[i]->name) + 2;
3370 }
3371 }
90e3cdf2 3372
c4b0b099
AM		 3373 if (size == 0)
3374 goto done;
699733f6
AM		 3375 s = *ret = bfd_malloc (size);
3376 if (s == NULL)
3377 {
7356fed5 3378 count = -1;
c9727e01 3379 goto done;
699733f6 3380 }
90e3cdf2 3381
699733f6 3382 names = (char *) (s + count);
90e3cdf2 3383
595da8c5 3384 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
90e3cdf2 3385 {
699733f6 3386 asymbol *sym;
90e3cdf2 3387
595da8c5 3388 while (r < opd->relocation + relcount
699733f6
AM		 3389 && r->address < syms[i]->value + opd->vma)
3390 ++r;
90e3cdf2 3391
595da8c5 3392 if (r == opd->relocation + relcount)
699733f6
AM		 3393 break;
3394
3395 if (r->address != syms[i]->value + opd->vma)
3396 continue;
3397
3398 if (r->howto->type != R_PPC64_ADDR64)
3399 continue;
90e3cdf2 3400
699733f6
AM		 3401 sym = *r->sym_ptr_ptr;
3402 if (!sym_exists_at (syms, opdsymend, symcount,
3403 sym->section->id, sym->value + r->addend))
3404 {
3405 size_t len;
3406
3407 *s = *syms[i];
6ba2a415 3408 s->flags |= BSF_SYNTHETIC;
699733f6
AM		 3409 s->section = sym->section;
3410 s->value = sym->value + r->addend;
3411 s->name = names;
3412 *names++ = '.';
3413 len = strlen (syms[i]->name);
3414 memcpy (names, syms[i]->name, len + 1);
3415 names += len + 1;
6f610d07
UW		 3416 /* Have udata.p point back to the original symbol this
3417 synthetic symbol was derived from. */
3418 s->udata.p = syms[i];
699733f6
AM		 3419 s++;
3420 }
3421 }
3422 }
3423 else
90e3cdf2 3424 {
468392fb 3425 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
ee67d69a 3426 bfd_byte *contents = NULL;
699733f6 3427 size_t size;
468392fb
AM		 3428 long plt_count = 0;
3429 bfd_vma glink_vma = 0, resolv_vma = 0;
3430 asection *dynamic, *glink = NULL, *relplt = NULL;
3431 arelent *p;
90e3cdf2 3432
ee67d69a 3433 if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents))
699733f6 3434 {
c4b0b099
AM		 3435 free_contents_and_exit_err:
3436 count = -1;
ee67d69a 3437 free_contents_and_exit:
699733f6 3438 if (contents)
ee67d69a 3439 free (contents);
c9727e01 3440 goto done;
699733f6 3441 }
90e3cdf2 3442
699733f6
AM		 3443 size = 0;
3444 for (i = secsymend; i < opdsymend; ++i)
3445 {
3446 bfd_vma ent;
90e3cdf2 3447
5ef11c02
AM		 3448 /* Ignore bogus symbols. */
3449 if (syms[i]->value > opd->size - 8)
3450 continue;
3451
699733f6
AM		 3452 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3453 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3454 {
3455 ++count;
3456 size += sizeof (asymbol);
3457 size += strlen (syms[i]->name) + 2;
3458 }
3459 }
90e3cdf2 3460
468392fb 3461 /* Get start of .glink stubs from DT_PPC64_GLINK. */
066ee829
AM		 3462 if (dyn_count != 0
3463 && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL)
468392fb
AM		 3464 {
3465 bfd_byte *dynbuf, *extdyn, *extdynend;
3466 size_t extdynsize;
3467 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
3468
3469 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
c4b0b099 3470 goto free_contents_and_exit_err;
468392fb
AM		 3471
3472 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
3473 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
3474
3475 extdyn = dynbuf;
3476 extdynend = extdyn + dynamic->size;
3477 for (; extdyn < extdynend; extdyn += extdynsize)
3478 {
3479 Elf_Internal_Dyn dyn;
3480 (*swap_dyn_in) (abfd, extdyn, &dyn);
3481
3482 if (dyn.d_tag == DT_NULL)
3483 break;
3484
3485 if (dyn.d_tag == DT_PPC64_GLINK)
3486 {
b9e5796b
AM		 3487 /* The first glink stub starts at offset 32; see
3488 comment in ppc64_elf_finish_dynamic_sections. */
3489 glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4;
468392fb
AM		 3490 /* The .glink section usually does not survive the final
3491 link; search for the section (usually .text) where the
3492 glink stubs now reside. */
3493 glink = bfd_sections_find_if (abfd, section_covers_vma,
3494 &glink_vma);
3495 break;
3496 }
3497 }
3498
3499 free (dynbuf);
3500 }
3501
3502 if (glink != NULL)
3503 {
3504 /* Determine __glink trampoline by reading the relative branch
3505 from the first glink stub. */
3506 bfd_byte buf[4];
b9e5796b
AM		 3507 unsigned int off = 0;
3508
3509 while (bfd_get_section_contents (abfd, glink, buf,
3510 glink_vma + off - glink->vma, 4))
468392fb
AM		 3511 {
3512 unsigned int insn = bfd_get_32 (abfd, buf);
3513 insn ^= B_DOT;
3514 if ((insn & ~0x3fffffc) == 0)
b9e5796b
AM		 3515 {
3516 resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000;
3517 break;
3518 }
3519 off += 4;
3520 if (off > 4)
3521 break;
468392fb
AM		 3522 }
3523
3524 if (resolv_vma)
3525 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
468392fb 3526
066ee829
AM		 3527 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
3528 if (relplt != NULL)
3529 {
3530 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3531 if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE))
c4b0b099 3532 goto free_contents_and_exit_err;
68ffbac6 3533
066ee829
AM		 3534 plt_count = relplt->size / sizeof (Elf64_External_Rela);
3535 size += plt_count * sizeof (asymbol);
468392fb 3536
066ee829
AM		 3537 p = relplt->relocation;
3538 for (i = 0; i < plt_count; i++, p++)
e054468f
AM		 3539 {
3540 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3541 if (p->addend != 0)
3542 size += sizeof ("+0x") - 1 + 16;
3543 }
066ee829 3544 }
468392fb
AM		 3545 }
3546
c4b0b099
AM		 3547 if (size == 0)
3548 goto free_contents_and_exit;
699733f6
AM		 3549 s = *ret = bfd_malloc (size);
3550 if (s == NULL)
c4b0b099 3551 goto free_contents_and_exit_err;
90e3cdf2 3552
468392fb 3553 names = (char *) (s + count + plt_count + (resolv_vma != 0));
90e3cdf2 3554
699733f6 3555 for (i = secsymend; i < opdsymend; ++i)
90e3cdf2 3556 {
699733f6 3557 bfd_vma ent;
90e3cdf2 3558
5ef11c02
AM		 3559 if (syms[i]->value > opd->size - 8)
3560 continue;
3561
699733f6
AM		 3562 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3563 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
90e3cdf2 3564 {
c9727e01 3565 long lo, hi;
699733f6 3566 size_t len;
c9727e01 3567 asection *sec = abfd->sections;
90e3cdf2 3568
699733f6
AM		 3569 *s = *syms[i];
3570 lo = codesecsym;
3571 hi = codesecsymend;
3572 while (lo < hi)
3573 {
c9727e01 3574 long mid = (lo + hi) >> 1;
699733f6
AM		 3575 if (syms[mid]->section->vma < ent)
3576 lo = mid + 1;
3577 else if (syms[mid]->section->vma > ent)
3578 hi = mid;
3579 else
c9727e01
AM		 3580 {
3581 sec = syms[mid]->section;
3582 break;
3583 }
699733f6
AM		 3584 }
3585
c9727e01 3586 if (lo >= hi && lo > codesecsym)
699733f6 3587 sec = syms[lo - 1]->section;
699733f6
AM		 3588
3589 for (; sec != NULL; sec = sec->next)
3590 {
3591 if (sec->vma > ent)
3592 break;
63524580
JK		 3593 /* SEC_LOAD may not be set if SEC is from a separate debug
3594 info file. */
3595 if ((sec->flags & SEC_ALLOC) == 0)
699733f6
AM		 3596 break;
3597 if ((sec->flags & SEC_CODE) != 0)
3598 s->section = sec;
3599 }
6ba2a415 3600 s->flags |= BSF_SYNTHETIC;
699733f6
AM		 3601 s->value = ent - s->section->vma;
3602 s->name = names;
3603 *names++ = '.';
3604 len = strlen (syms[i]->name);
3605 memcpy (names, syms[i]->name, len + 1);
3606 names += len + 1;
6f610d07
UW		 3607 /* Have udata.p point back to the original symbol this
3608 synthetic symbol was derived from. */
3609 s->udata.p = syms[i];
699733f6 3610 s++;
90e3cdf2 3611 }
90e3cdf2 3612 }
699733f6 3613 free (contents);
468392fb
AM		 3614
3615 if (glink != NULL && relplt != NULL)
3616 {
3617 if (resolv_vma)
3618 {
3619 /* Add a symbol for the main glink trampoline. */
86a4952b 3620 memset (s, 0, sizeof *s);
468392fb 3621 s->the_bfd = abfd;
6ba2a415 3622 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM		 3623 s->section = glink;
3624 s->value = resolv_vma - glink->vma;
3625 s->name = names;
3626 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3627 names += sizeof ("__glink_PLTresolve");
3628 s++;
3629 count++;
3630 }
3631
3632 /* FIXME: It would be very much nicer to put sym@plt on the
3633 stub rather than on the glink branch table entry. The
3634 objdump disassembler would then use a sensible symbol
3635 name on plt calls. The difficulty in doing so is
3636 a) finding the stubs, and,
3637 b) matching stubs against plt entries, and,
3638 c) there can be multiple stubs for a given plt entry.
3639
3640 Solving (a) could be done by code scanning, but older
3641 ppc64 binaries used different stubs to current code.
3642 (b) is the tricky one since you need to known the toc
3643 pointer for at least one function that uses a pic stub to
3644 be able to calculate the plt address referenced.
3645 (c) means gdb would need to set multiple breakpoints (or
3646 find the glink branch itself) when setting breakpoints
3647 for pending shared library loads. */
3648 p = relplt->relocation;
3649 for (i = 0; i < plt_count; i++, p++)
3650 {
3651 size_t len;
3652
3653 *s = **p->sym_ptr_ptr;
3654 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3655 we are defining a symbol, ensure one of them is set. */
3656 if ((s->flags & BSF_LOCAL) == 0)
3657 s->flags |= BSF_GLOBAL;
6ba2a415 3658 s->flags |= BSF_SYNTHETIC;
468392fb
AM		 3659 s->section = glink;
3660 s->value = glink_vma - glink->vma;
3661 s->name = names;
3662 s->udata.p = NULL;
3663 len = strlen ((*p->sym_ptr_ptr)->name);
3664 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3665 names += len;
e054468f
AM		 3666 if (p->addend != 0)
3667 {
3668 memcpy (names, "+0x", sizeof ("+0x") - 1);
3669 names += sizeof ("+0x") - 1;
3670 bfd_sprintf_vma (abfd, names, p->addend);
3671 names += strlen (names);
3672 }
468392fb
AM		 3673 memcpy (names, "@plt", sizeof ("@plt"));
3674 names += sizeof ("@plt");
3675 s++;
b9e5796b
AM		 3676 if (abi < 2)
3677 {
3678 glink_vma += 8;
3679 if (i >= 0x8000)
3680 glink_vma += 4;
3681 }
3682 else
468392fb
AM		 3683 glink_vma += 4;
3684 }
3685 count += plt_count;
3686 }
90e3cdf2
JJ		 3687 }
3688
c9727e01 3689 done:
a7535cf3 3690 free (syms);
90e3cdf2
JJ		 3691 return count;
3692}
5bd4f169 3693\f
65f38f15
AM		 3694/* The following functions are specific to the ELF linker, while
3695 functions above are used generally. Those named ppc64_elf_* are
3696 called by the main ELF linker code. They appear in this file more
3697 or less in the order in which they are called. eg.
3698 ppc64_elf_check_relocs is called early in the link process,
3699 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 3700 called.
3701
3702 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3703 functions have both a function code symbol and a function descriptor
3704 symbol. A call to foo in a relocatable object file looks like:
3705
3706 . .text
3707 . x:
3708 . bl .foo
3709 . nop
3710
3711 The function definition in another object file might be:
3712
3713 . .section .opd
3714 . foo: .quad .foo
3715 . .quad .TOC.@tocbase
3716 . .quad 0
3717 .
3718 . .text
3719 . .foo: blr
3720
3721 When the linker resolves the call during a static link, the branch
3722 unsurprisingly just goes to .foo and the .opd information is unused.
3723 If the function definition is in a shared library, things are a little
3724 different: The call goes via a plt call stub, the opd information gets
3725 copied to the plt, and the linker patches the nop.
3726
3727 . x:
3728 . bl .foo_stub
3729 . ld 2,40(1)
3730 .
3731 .
3732 . .foo_stub:
71a39c98
AM		 3733 . std 2,40(1) # in practice, the call stub
3734 . addis 11,2,Lfoo@toc@ha # is slightly optimized, but
3735 . addi 11,11,Lfoo@toc@l # this is the general idea
3736 . ld 12,0(11)
3737 . ld 2,8(11)
3738 . mtctr 12
3739 . ld 11,16(11)
e86ce104
AM		 3740 . bctr
3741 .
3742 . .section .plt
3743 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3744
3745 The "reloc ()" notation is supposed to indicate that the linker emits
3746 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3747 copying.
3748
3749 What are the difficulties here? Well, firstly, the relocations
3750 examined by the linker in check_relocs are against the function code
3751 sym .foo, while the dynamic relocation in the plt is emitted against
3752 the function descriptor symbol, foo. Somewhere along the line, we need
3753 to carefully copy dynamic link information from one symbol to the other.
3754 Secondly, the generic part of the elf linker will make .foo a dynamic
3755 symbol as is normal for most other backends. We need foo dynamic
3756 instead, at least for an application final link. However, when
3757 creating a shared library containing foo, we need to have both symbols
3758 dynamic so that references to .foo are satisfied during the early
3759 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM		 3760 definition from some other object, eg. a static library.
3761
3762 Update: As of August 2004, we support a new convention. Function
3763 calls may use the function descriptor symbol, ie. "bl foo". This
3764 behaves exactly as "bl .foo". */
65f38f15 3765
1d483afe 3766/* Of those relocs that might be copied as dynamic relocs, this function
58ac9f71
AM		 3767 selects those that must be copied when linking a shared library,
3768 even when the symbol is local. */
65f38f15 3769
1d483afe
AM		 3770static int
3771must_be_dyn_reloc (struct bfd_link_info *info,
3772 enum elf_ppc64_reloc_type r_type)
3773{
3774 switch (r_type)
3775 {
3776 default:
3777 return 1;
3778
3779 case R_PPC64_REL32:
3780 case R_PPC64_REL64:
3781 case R_PPC64_REL30:
3782 return 0;
3783
3784 case R_PPC64_TPREL16:
3785 case R_PPC64_TPREL16_LO:
3786 case R_PPC64_TPREL16_HI:
3787 case R_PPC64_TPREL16_HA:
3788 case R_PPC64_TPREL16_DS:
3789 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 3790 case R_PPC64_TPREL16_HIGH:
3791 case R_PPC64_TPREL16_HIGHA:
1d483afe
AM		 3792 case R_PPC64_TPREL16_HIGHER:
3793 case R_PPC64_TPREL16_HIGHERA:
3794 case R_PPC64_TPREL16_HIGHEST:
3795 case R_PPC64_TPREL16_HIGHESTA:
3796 case R_PPC64_TPREL64:
0e1862bb 3797 return !bfd_link_executable (info);
1d483afe
AM		 3798 }
3799}
65f38f15 3800
f4656909
AM		 3801/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3802 copying dynamic variables from a shared lib into an app's dynbss
3803 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 3804 shared lib. With code that gcc generates, it's vital that this be
3805 enabled; In the PowerPC64 ABI, the address of a function is actually
3806 the address of a function descriptor, which resides in the .opd
3807 section. gcc uses the descriptor directly rather than going via the
3808 GOT as some other ABI's do, which means that initialized function
3809 pointers must reference the descriptor. Thus, a function pointer
3810 initialized to the address of a function in a shared library will
3811 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3812 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM		 3813 presents a problem as a plt entry for that function is also
3814 initialized from the function descriptor symbol and the copy reloc
3815 may not be initialized first. */
a23b6845 3816#define ELIMINATE_COPY_RELOCS 1
f4656909 3817
721956f4 3818/* Section name for stubs is the associated section name plus this
29942be8
NC		 3819 string. */
3820#define STUB_SUFFIX ".stub"
721956f4
AM		 3821
3822/* Linker stubs.
3823 ppc_stub_long_branch:
3824 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3825 destination, but a 24 bit branch in a stub section will reach.
3826 . b dest
3827
3828 ppc_stub_plt_branch:
3829 Similar to the above, but a 24 bit branch in the stub section won't
3830 reach its destination.
71a39c98
AM		 3831 . addis %r11,%r2,xxx@toc@ha
3832 . ld %r12,xxx@toc@l(%r11)
3833 . mtctr %r12
721956f4
AM		 3834 . bctr
3835
3836 ppc_stub_plt_call:
2c66dc6c
AM		 3837 Used to call a function in a shared library. If it so happens that
3838 the plt entry referenced crosses a 64k boundary, then an extra
71a39c98 3839 "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr".
721956f4 3840 . std %r2,40(%r1)
71a39c98
AM		 3841 . addis %r11,%r2,xxx@toc@ha
3842 . ld %r12,xxx+0@toc@l(%r11)
3843 . mtctr %r12
3844 . ld %r2,xxx+8@toc@l(%r11)
3845 . ld %r11,xxx+16@toc@l(%r11)
721956f4 3846 . bctr
ad8e1ba5
AM		 3847
3848 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3849 code to adjust the value and save r2 to support multiple toc sections.
3850 A ppc_stub_long_branch with an r2 offset looks like:
3851 . std %r2,40(%r1)
3852 . addis %r2,%r2,off@ha
3853 . addi %r2,%r2,off@l
3854 . b dest
3855
3856 A ppc_stub_plt_branch with an r2 offset looks like:
3857 . std %r2,40(%r1)
71a39c98
AM		 3858 . addis %r11,%r2,xxx@toc@ha
3859 . ld %r12,xxx@toc@l(%r11)
ad8e1ba5
AM		 3860 . addis %r2,%r2,off@ha
3861 . addi %r2,%r2,off@l
71a39c98 3862 . mtctr %r12
ad8e1ba5 3863 . bctr
ac2df442
AM		 3864
3865 In cases where the "addis" instruction would add zero, the "addis" is
3866 omitted and following instructions modified slightly in some cases.
721956f4
AM		 3867*/
3868
3869enum ppc_stub_type {
3870 ppc_stub_none,
3871 ppc_stub_long_branch,
ad8e1ba5 3872 ppc_stub_long_branch_r2off,
721956f4 3873 ppc_stub_plt_branch,
ad8e1ba5 3874 ppc_stub_plt_branch_r2off,
794e51c0 3875 ppc_stub_plt_call,
7341d5e2 3876 ppc_stub_plt_call_r2save,
a4b6fadd
AM		 3877 ppc_stub_global_entry,
3878 ppc_stub_save_res
721956f4
AM		 3879};
3880
6f20ed8a
AM		 3881/* Information on stub grouping. */
3882struct map_stub
3883{
3884 /* The stub section. */
3885 asection *stub_sec;
3886 /* This is the section to which stubs in the group will be attached. */
3887 asection *link_sec;
a4b6fadd
AM		 3888 /* Next group. */
3889 struct map_stub *next;
3890 /* Whether to emit a copy of register save/restore functions in this
3891 group. */
3892 int needs_save_res;
6f20ed8a
AM		 3893};
3894
721956f4
AM		 3895struct ppc_stub_hash_entry {
3896
3897 /* Base hash table entry structure. */
3898 struct bfd_hash_entry root;
3899
ad8e1ba5
AM		 3900 enum ppc_stub_type stub_type;
3901
6f20ed8a
AM		 3902 /* Group information. */
3903 struct map_stub *group;
721956f4
AM		 3904
3905 /* Offset within stub_sec of the beginning of this stub. */
3906 bfd_vma stub_offset;
3907
3908 /* Given the symbol's value and its section we can determine its final
3909 value when building the stubs (so the stub knows where to jump. */
3910 bfd_vma target_value;
3911 asection *target_section;
3912
721956f4
AM		 3913 /* The symbol table entry, if any, that this was derived from. */
3914 struct ppc_link_hash_entry *h;
e054468f 3915 struct plt_entry *plt_ent;
721956f4 3916
6911b7dc
AM		 3917 /* Symbol st_other. */
3918 unsigned char other;
721956f4
AM		 3919};
3920
3921struct ppc_branch_hash_entry {
3922
3923 /* Base hash table entry structure. */
3924 struct bfd_hash_entry root;
3925
c456f082 3926 /* Offset within branch lookup table. */
721956f4
AM		 3927 unsigned int offset;
3928
3929 /* Generation marker. */
3930 unsigned int iter;
3931};
65f38f15 3932
19e08130
AM		 3933/* Used to track dynamic relocations for local symbols. */
3934struct ppc_dyn_relocs
3935{
3936 struct ppc_dyn_relocs *next;
3937
3938 /* The input section of the reloc. */
3939 asection *sec;
3940
3941 /* Total number of relocs copied for the input section. */
3942 unsigned int count : 31;
3943
3944 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3945 unsigned int ifunc : 1;
3946};
3947
65f38f15
AM		 3948struct ppc_link_hash_entry
3949{
3950 struct elf_link_hash_entry elf;
3951
b3fac117
AM		 3952 union {
3953 /* A pointer to the most recently used stub hash entry against this
3954 symbol. */
3955 struct ppc_stub_hash_entry *stub_cache;
3956
3957 /* A pointer to the next symbol starting with a '.' */
3958 struct ppc_link_hash_entry *next_dot_sym;
3959 } u;
721956f4 3960
65f38f15 3961 /* Track dynamic relocs copied for this symbol. */
6061a67d 3962 struct elf_dyn_relocs *dyn_relocs;
e86ce104 3963
d311bc8b
AM		 3964 /* Chain of aliases referring to a weakdef. */
3965 struct ppc_link_hash_entry *weakref;
3966
721956f4 3967 /* Link between function code and descriptor symbols. */
34814b9f 3968 struct ppc_link_hash_entry *oh;
721956f4 3969
e86ce104
AM		 3970 /* Flag function code and descriptor symbols. */
3971 unsigned int is_func:1;
3972 unsigned int is_func_descriptor:1;
908b32fc 3973 unsigned int fake:1;
411e1bfb 3974
c5614fa4
AM		 3975 /* Whether global opd/toc sym has been adjusted or not.
3976 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3977 should be set for all globals defined in any opd/toc section. */
754021d0
AM		 3978 unsigned int adjust_done:1;
3979
99877b66
AM		 3980 /* Set if we twiddled this symbol to weak at some stage. */
3981 unsigned int was_undefined:1;
3982
a4b6fadd
AM		 3983 /* Set if this is an out-of-line register save/restore function,
3984 with non-standard calling convention. */
3985 unsigned int save_res:1;
3986
411e1bfb 3987 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 3988 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3989 corresponding relocs are encountered during check_relocs.
3990 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3991 indicate the corresponding GOT entry type is not needed.
3992 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3993 a TPREL one. We use a separate flag rather than setting TPREL
3994 just for convenience in distinguishing the two cases. */
3995#define TLS_GD 1 /* GD reloc. */
3996#define TLS_LD 2 /* LD reloc. */
3997#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3998#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3999#define TLS_TLS 16 /* Any TLS reloc. */
4000#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
4001#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
e054468f 4002#define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
f961d9dd 4003 unsigned char tls_mask;
65f38f15
AM		 4004};
4005
4006/* ppc64 ELF linker hash table. */
4007
4008struct ppc_link_hash_table
4009{
4010 struct elf_link_hash_table elf;
4011
721956f4
AM		 4012 /* The stub hash table. */
4013 struct bfd_hash_table stub_hash_table;
4014
4015 /* Another hash table for plt_branch stubs. */
4016 struct bfd_hash_table branch_hash_table;
4017
3b421ab3
AM		 4018 /* Hash table for function prologue tocsave. */
4019 htab_t tocsave_htab;
4020
e7d1c40c
AM		 4021 /* Various options and other info passed from the linker. */
4022 struct ppc64_elf_params *params;
721956f4 4023
6f20ed8a
AM		 4024 /* The size of sec_info below. */
4025 unsigned int sec_info_arr_size;
4026
4027 /* Per-section array of extra section info. Done this way rather
4028 than as part of ppc64_elf_section_data so we have the info for
4029 non-ppc64 sections. */
4030 struct
4031 {
4032 /* Along with elf_gp, specifies the TOC pointer used by this section. */
ad8e1ba5 4033 bfd_vma toc_off;
6f20ed8a
AM		 4034
4035 union
4036 {
4037 /* The section group that this section belongs to. */
4038 struct map_stub *group;
4039 /* A temp section list pointer. */
4040 asection *list;
4041 } u;
4042 } *sec_info;
721956f4 4043
a4b6fadd
AM		 4044 /* Linked list of groups. */
4045 struct map_stub *group;
4046
ad8e1ba5
AM		 4047 /* Temp used when calculating TOC pointers. */
4048 bfd_vma toc_curr;
bf102f86
AM		 4049 bfd *toc_bfd;
4050 asection *toc_first_sec;
ad8e1ba5 4051
b3fac117
AM		 4052 /* Used when adding symbols. */
4053 struct ppc_link_hash_entry *dot_syms;
4054
33e44f2e 4055 /* Shortcuts to get to dynamic linker sections. */
4ce794b7
AM		 4056 asection *dynbss;
4057 asection *relbss;
4058 asection *glink;
82bd7b59 4059 asection *sfpr;
4ce794b7
AM		 4060 asection *brlt;
4061 asection *relbrlt;
58d180e8 4062 asection *glink_eh_frame;
ec338859 4063
8387904d
AM		 4064 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
4065 struct ppc_link_hash_entry *tls_get_addr;
4066 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 4067
927be08e
AM		 4068 /* The size of reliplt used by got entry relocs. */
4069 bfd_size_type got_reli_size;
4070
9b5ecbd0 4071 /* Statistics. */
7341d5e2 4072 unsigned long stub_count[ppc_stub_global_entry];
9b5ecbd0 4073
ee75fd95
AM		 4074 /* Number of stubs against global syms. */
4075 unsigned long stub_globals;
4076
ee67d69a
AM		 4077 /* Set if we're linking code with function descriptors. */
4078 unsigned int opd_abi:1;
4079
4c52953f 4080 /* Support for multiple toc sections. */
33c0ec9d 4081 unsigned int do_multi_toc:1;
4c52953f 4082 unsigned int multi_toc_needed:1;
927be08e 4083 unsigned int second_toc_pass:1;
67f0cbdb 4084 unsigned int do_toc_opt:1;
4c52953f 4085
5d1634d7 4086 /* Set on error. */
99877b66 4087 unsigned int stub_error:1;
721956f4 4088
f6c7c3e8 4089 /* Temp used by ppc64_elf_before_check_relocs. */
99877b66 4090 unsigned int twiddled_syms:1;
721956f4
AM		 4091
4092 /* Incremented every time we size stubs. */
4093 unsigned int stub_iteration;
5d1634d7 4094
87d72d41
AM		 4095 /* Small local sym cache. */
4096 struct sym_cache sym_cache;
65f38f15
AM		 4097};
4098
4c52953f
AM		 4099/* Rename some of the generic section flags to better document how they
4100 are used here. */
b0dddeec
AM		 4101
4102/* Nonzero if this section has TLS related relocations. */
4103#define has_tls_reloc sec_flg0
4104
4105/* Nonzero if this section has a call to __tls_get_addr. */
4106#define has_tls_get_addr_call sec_flg1
4107
4108/* Nonzero if this section has any toc or got relocs. */
4109#define has_toc_reloc sec_flg2
4110
4111/* Nonzero if this section has a call to another section that uses
4112 the toc or got. */
d77c8a4b 4113#define makes_toc_func_call sec_flg3
b0dddeec
AM		 4114
4115/* Recursion protection when determining above flag. */
d77c8a4b 4116#define call_check_in_progress sec_flg4
70cc837d 4117#define call_check_done sec_flg5
4c52953f 4118
65f38f15
AM		 4119/* Get the ppc64 ELF linker hash table from a link_info structure. */
4120
4121#define ppc_hash_table(p) \
4dfe6ac6
NC		 4122 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
4123 == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL)
65f38f15 4124
721956f4
AM		 4125#define ppc_stub_hash_lookup(table, string, create, copy) \
4126 ((struct ppc_stub_hash_entry *) \
4127 bfd_hash_lookup ((table), (string), (create), (copy)))
4128
4129#define ppc_branch_hash_lookup(table, string, create, copy) \
4130 ((struct ppc_branch_hash_entry *) \
4131 bfd_hash_lookup ((table), (string), (create), (copy)))
4132
4133/* Create an entry in the stub hash table. */
4134
4135static struct bfd_hash_entry *
4ce794b7
AM		 4136stub_hash_newfunc (struct bfd_hash_entry *entry,
4137 struct bfd_hash_table *table,
4138 const char *string)
721956f4
AM		 4139{
4140 /* Allocate the structure if it has not already been allocated by a
4141 subclass. */
4142 if (entry == NULL)
4143 {
4144 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
4145 if (entry == NULL)
4146 return entry;
4147 }
4148
4149 /* Call the allocation method of the superclass. */
4150 entry = bfd_hash_newfunc (entry, table, string);
4151 if (entry != NULL)
4152 {
4153 struct ppc_stub_hash_entry *eh;
4154
4155 /* Initialize the local fields. */
4156 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 4157 eh->stub_type = ppc_stub_none;
6f20ed8a 4158 eh->group = NULL;
721956f4
AM		 4159 eh->stub_offset = 0;
4160 eh->target_value = 0;
4161 eh->target_section = NULL;
721956f4 4162 eh->h = NULL;
6911b7dc 4163 eh->plt_ent = NULL;
6911b7dc 4164 eh->other = 0;
721956f4
AM		 4165 }
4166
4167 return entry;
4168}
4169
4170/* Create an entry in the branch hash table. */
4171
4172static struct bfd_hash_entry *
4ce794b7
AM		 4173branch_hash_newfunc (struct bfd_hash_entry *entry,
4174 struct bfd_hash_table *table,
4175 const char *string)
721956f4
AM		 4176{
4177 /* Allocate the structure if it has not already been allocated by a
4178 subclass. */
4179 if (entry == NULL)
4180 {
4181 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
4182 if (entry == NULL)
4183 return entry;
4184 }
4185
4186 /* Call the allocation method of the superclass. */
4187 entry = bfd_hash_newfunc (entry, table, string);
4188 if (entry != NULL)
4189 {
4190 struct ppc_branch_hash_entry *eh;
4191
4192 /* Initialize the local fields. */
4193 eh = (struct ppc_branch_hash_entry *) entry;
4194 eh->offset = 0;
4195 eh->iter = 0;
4196 }
4197
4198 return entry;
4199}
4200
65f38f15
AM		 4201/* Create an entry in a ppc64 ELF linker hash table. */
4202
4203static struct bfd_hash_entry *
4ce794b7
AM		 4204link_hash_newfunc (struct bfd_hash_entry *entry,
4205 struct bfd_hash_table *table,
4206 const char *string)
65f38f15
AM		 4207{
4208 /* Allocate the structure if it has not already been allocated by a
4209 subclass. */
4210 if (entry == NULL)
4211 {
4212 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
4213 if (entry == NULL)
4214 return entry;
4215 }
4216
4217 /* Call the allocation method of the superclass. */
4218 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
4219 if (entry != NULL)
4220 {
4221 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
4222
b3fac117 4223 memset (&eh->u.stub_cache, 0,
908b32fc 4224 (sizeof (struct ppc_link_hash_entry)
b3fac117
AM		 4225 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
4226
4227 /* When making function calls, old ABI code references function entry
4228 points (dot symbols), while new ABI code references the function
4229 descriptor symbol. We need to make any combination of reference and
4230 definition work together, without breaking archive linking.
4231
4232 For a defined function "foo" and an undefined call to "bar":
4233 An old object defines "foo" and ".foo", references ".bar" (possibly
4234 "bar" too).
4235 A new object defines "foo" and references "bar".
4236
4237 A new object thus has no problem with its undefined symbols being
4238 satisfied by definitions in an old object. On the other hand, the
4239 old object won't have ".bar" satisfied by a new object.
4240
4241 Keep a list of newly added dot-symbols. */
4242
4243 if (string[0] == '.')
4244 {
4245 struct ppc_link_hash_table *htab;
4246
4247 htab = (struct ppc_link_hash_table *) table;
4248 eh->u.next_dot_sym = htab->dot_syms;
4249 htab->dot_syms = eh;
4250 }
65f38f15
AM		 4251 }
4252
4253 return entry;
4254}
4255
3b421ab3
AM		 4256struct tocsave_entry {
4257 asection *sec;
4258 bfd_vma offset;
4259};
4260
4261static hashval_t
4262tocsave_htab_hash (const void *p)
4263{
4264 const struct tocsave_entry *e = (const struct tocsave_entry *) p;
4265 return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3;
4266}
4267
4268static int
4269tocsave_htab_eq (const void *p1, const void *p2)
4270{
4271 const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1;
4272 const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2;
4273 return e1->sec == e2->sec && e1->offset == e2->offset;
4274}
4275
68faa637
AM		 4276/* Destroy a ppc64 ELF linker hash table. */
4277
4278static void
d495ab0d 4279ppc64_elf_link_hash_table_free (bfd *obfd)
68faa637 4280{
d495ab0d 4281 struct ppc_link_hash_table *htab;
68faa637 4282
d495ab0d 4283 htab = (struct ppc_link_hash_table *) obfd->link.hash;
68faa637
AM		 4284 if (htab->tocsave_htab)
4285 htab_delete (htab->tocsave_htab);
d495ab0d
AM		 4286 bfd_hash_table_free (&htab->branch_hash_table);
4287 bfd_hash_table_free (&htab->stub_hash_table);
4288 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 4289}
4290
65f38f15
AM		 4291/* Create a ppc64 ELF linker hash table. */
4292
4293static struct bfd_link_hash_table *
4ce794b7 4294ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 4295{
4296 struct ppc_link_hash_table *htab;
4297 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
4298
4ce794b7 4299 htab = bfd_zmalloc (amt);
65f38f15
AM		 4300 if (htab == NULL)
4301 return NULL;
4302
66eb6687 4303 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 4304 sizeof (struct ppc_link_hash_entry),
4305 PPC64_ELF_DATA))
65f38f15 4306 {
e2d34d7d 4307 free (htab);
65f38f15
AM		 4308 return NULL;
4309 }
4310
721956f4 4311 /* Init the stub hash table too. */
66eb6687
AM		 4312 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
4313 sizeof (struct ppc_stub_hash_entry)))
2915c55b 4314 {
d495ab0d 4315 _bfd_elf_link_hash_table_free (abfd);
2915c55b
JK		 4316 return NULL;
4317 }
721956f4
AM		 4318
4319 /* And the branch hash table. */
66eb6687
AM		 4320 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
4321 sizeof (struct ppc_branch_hash_entry)))
2915c55b
JK		 4322 {
4323 bfd_hash_table_free (&htab->stub_hash_table);
d495ab0d 4324 _bfd_elf_link_hash_table_free (abfd);
2915c55b
JK		 4325 return NULL;
4326 }
721956f4 4327
3b421ab3
AM		 4328 htab->tocsave_htab = htab_try_create (1024,
4329 tocsave_htab_hash,
4330 tocsave_htab_eq,
4331 NULL);
4332 if (htab->tocsave_htab == NULL)
2915c55b 4333 {
d495ab0d 4334 ppc64_elf_link_hash_table_free (abfd);
2915c55b
JK		 4335 return NULL;
4336 }
d495ab0d 4337 htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free;
3b421ab3 4338
3254fd24
AM		 4339 /* Initializing two fields of the union is just cosmetic. We really
4340 only care about glist, but when compiled on a 32-bit host the
4341 bfd_vma fields are larger. Setting the bfd_vma to zero makes
4342 debugger inspection of these fields look nicer. */
a6aa5195
AM		 4343 htab->elf.init_got_refcount.refcount = 0;
4344 htab->elf.init_got_refcount.glist = NULL;
4345 htab->elf.init_plt_refcount.refcount = 0;
4346 htab->elf.init_plt_refcount.glist = NULL;
4347 htab->elf.init_got_offset.offset = 0;
4348 htab->elf.init_got_offset.glist = NULL;
4349 htab->elf.init_plt_offset.offset = 0;
4350 htab->elf.init_plt_offset.glist = NULL;
3254fd24 4351
65f38f15
AM		 4352 return &htab->elf.root;
4353}
4354
bfeb4a28
AM		 4355/* Create sections for linker generated code. */
4356
4357static bfd_boolean
4358create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
4359{
4360 struct ppc_link_hash_table *htab;
4361 flagword flags;
4362
4363 htab = ppc_hash_table (info);
4364
bfeb4a28
AM		 4365 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
4366 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
b32547cd
AM		 4367 if (htab->params->save_restore_funcs)
4368 {
4369 /* Create .sfpr for code to save and restore fp regs. */
4370 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
4371 flags);
4372 if (htab->sfpr == NULL
4373 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
4374 return FALSE;
4375 }
4376
4377 if (bfd_link_relocatable (info))
4378 return TRUE;
bfeb4a28
AM		 4379
4380 /* Create .glink for lazy dynamic linking support. */
4381 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
4382 flags);
4383 if (htab->glink == NULL
4384 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
4385 return FALSE;
4386
4387 if (!info->no_ld_generated_unwind_info)
4388 {
4389 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
4390 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4391 htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj,
4392 ".eh_frame",
4393 flags);
4394 if (htab->glink_eh_frame == NULL
4395 || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2))
4396 return FALSE;
4397 }
4398
4399 flags = SEC_ALLOC | SEC_LINKER_CREATED;
33e44f2e
AM		 4400 htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
4401 if (htab->elf.iplt == NULL
4402 || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3))
bfeb4a28
AM		 4403 return FALSE;
4404
4405 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4406 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
33e44f2e
AM		 4407 htab->elf.irelplt
4408 = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags);
4409 if (htab->elf.irelplt == NULL
4410 || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3))
bfeb4a28
AM		 4411 return FALSE;
4412
4413 /* Create branch lookup table for plt_branch stubs. */
4414 flags = (SEC_ALLOC | SEC_LOAD
4415 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4416 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
4417 flags);
4418 if (htab->brlt == NULL
4419 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
4420 return FALSE;
4421
0e1862bb 4422 if (!bfd_link_pic (info))
bfeb4a28
AM		 4423 return TRUE;
4424
4425 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4426 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4427 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
4428 ".rela.branch_lt",
4429 flags);
4430 if (htab->relbrlt == NULL
4431 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
4432 return FALSE;
4433
4434 return TRUE;
4435}
4436
e717da7e
AM		 4437/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
4438
bfeb4a28 4439bfd_boolean
e7d1c40c
AM		 4440ppc64_elf_init_stub_bfd (struct bfd_link_info *info,
4441 struct ppc64_elf_params *params)
e717da7e
AM		 4442{
4443 struct ppc_link_hash_table *htab;
4444
e7d1c40c 4445 elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64;
e717da7e
AM		 4446
4447/* Always hook our dynamic sections into the first bfd, which is the
4448 linker created stub bfd. This ensures that the GOT header is at
4449 the start of the output TOC section. */
4450 htab = ppc_hash_table (info);
e7d1c40c
AM		 4451 htab->elf.dynobj = params->stub_bfd;
4452 htab->params = params;
bfeb4a28 4453
bfeb4a28 4454 return create_linkage_sections (htab->elf.dynobj, info);
e717da7e
AM		 4455}
4456
721956f4
AM		 4457/* Build a name for an entry in the stub hash table. */
4458
4459static char *
4ce794b7
AM		 4460ppc_stub_name (const asection *input_section,
4461 const asection *sym_sec,
4462 const struct ppc_link_hash_entry *h,
4463 const Elf_Internal_Rela *rel)
721956f4
AM		 4464{
4465 char *stub_name;
bcaa2f82 4466 ssize_t len;
721956f4
AM		 4467
4468 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
4469 offsets from a sym as a branch target? In fact, we could
4470 probably assume the addend is always zero. */
4471 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
4472
4473 if (h)
4474 {
4475 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
4476 stub_name = bfd_malloc (len);
46de2a7c
AM		 4477 if (stub_name == NULL)
4478 return stub_name;
4479
bcaa2f82
AM		 4480 len = sprintf (stub_name, "%08x.%s+%x",
4481 input_section->id & 0xffffffff,
4482 h->elf.root.root.string,
4483 (int) rel->r_addend & 0xffffffff);
721956f4
AM		 4484 }
4485 else
4486 {
ad8e1ba5 4487 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4 4488 stub_name = bfd_malloc (len);
46de2a7c
AM		 4489 if (stub_name == NULL)
4490 return stub_name;
4491
bcaa2f82
AM		 4492 len = sprintf (stub_name, "%08x.%x:%x+%x",
4493 input_section->id & 0xffffffff,
4494 sym_sec->id & 0xffffffff,
4495 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
4496 (int) rel->r_addend & 0xffffffff);
721956f4 4497 }
bcaa2f82 4498 if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
ee75fd95 4499 stub_name[len - 2] = 0;
721956f4
AM		 4500 return stub_name;
4501}
4502
4503/* Look up an entry in the stub hash. Stub entries are cached because
4504 creating the stub name takes a bit of time. */
4505
4506static struct ppc_stub_hash_entry *
4ce794b7
AM		 4507ppc_get_stub_entry (const asection *input_section,
4508 const asection *sym_sec,
039b3fef 4509 struct ppc_link_hash_entry *h,
4ce794b7
AM		 4510 const Elf_Internal_Rela *rel,
4511 struct ppc_link_hash_table *htab)
721956f4
AM		 4512{
4513 struct ppc_stub_hash_entry *stub_entry;
6f20ed8a 4514 struct map_stub *group;
721956f4
AM		 4515
4516 /* If this input section is part of a group of sections sharing one
4517 stub section, then use the id of the first section in the group.
4518 Stub names need to include a section id, as there may well be
4519 more than one stub used to reach say, printf, and we need to
4520 distinguish between them. */
6f20ed8a 4521 group = htab->sec_info[input_section->id].u.group;
89d77b8a
AM		 4522 if (group == NULL)
4523 return NULL;
721956f4 4524
b3fac117
AM		 4525 if (h != NULL && h->u.stub_cache != NULL
4526 && h->u.stub_cache->h == h
6f20ed8a 4527 && h->u.stub_cache->group == group)
721956f4 4528 {
b3fac117 4529 stub_entry = h->u.stub_cache;
721956f4
AM		 4530 }
4531 else
4532 {
4533 char *stub_name;
4534
6f20ed8a 4535 stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel);
721956f4
AM		 4536 if (stub_name == NULL)
4537 return NULL;
4538
4539 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 4540 stub_name, FALSE, FALSE);
721956f4 4541 if (h != NULL)
b3fac117 4542 h->u.stub_cache = stub_entry;
721956f4
AM		 4543
4544 free (stub_name);
4545 }
4546
4547 return stub_entry;
4548}
4549
4550/* Add a new stub entry to the stub hash. Not all fields of the new
4551 stub entry are initialised. */
4552
4553static struct ppc_stub_hash_entry *
4ce794b7
AM		 4554ppc_add_stub (const char *stub_name,
4555 asection *section,
25f53a85 4556 struct bfd_link_info *info)
721956f4 4557{
25f53a85 4558 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6f20ed8a 4559 struct map_stub *group;
721956f4
AM		 4560 asection *link_sec;
4561 asection *stub_sec;
4562 struct ppc_stub_hash_entry *stub_entry;
4563
6f20ed8a
AM		 4564 group = htab->sec_info[section->id].u.group;
4565 link_sec = group->link_sec;
4566 stub_sec = group->stub_sec;
721956f4
AM		 4567 if (stub_sec == NULL)
4568 {
6f20ed8a
AM		 4569 size_t namelen;
4570 bfd_size_type len;
4571 char *s_name;
721956f4 4572
6f20ed8a
AM		 4573 namelen = strlen (link_sec->name);
4574 len = namelen + sizeof (STUB_SUFFIX);
4575 s_name = bfd_alloc (htab->params->stub_bfd, len);
4576 if (s_name == NULL)
4577 return NULL;
721956f4 4578
6f20ed8a
AM		 4579 memcpy (s_name, link_sec->name, namelen);
4580 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
4581 stub_sec = (*htab->params->add_stub_section) (s_name, link_sec);
4582 if (stub_sec == NULL)
4583 return NULL;
4584 group->stub_sec = stub_sec;
721956f4
AM		 4585 }
4586
4587 /* Enter this entry into the linker stub hash table. */
4588 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 4589 TRUE, FALSE);
721956f4
AM		 4590 if (stub_entry == NULL)
4591 {
695344c0 4592 /* xgettext:c-format */
8de848d8 4593 info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"),
25f53a85 4594 section->owner, stub_name);
721956f4
AM		 4595 return NULL;
4596 }
4597
6f20ed8a 4598 stub_entry->group = group;
721956f4 4599 stub_entry->stub_offset = 0;
721956f4
AM		 4600 return stub_entry;
4601}
4602
e717da7e
AM		 4603/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
4604 not already done. */
65f38f15 4605
b34976b6 4606static bfd_boolean
e717da7e 4607create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 4608{
e717da7e
AM		 4609 asection *got, *relgot;
4610 flagword flags;
4611 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 4612
0c8d6e5c 4613 if (!is_ppc64_elf (abfd))
0ffa91dd 4614 return FALSE;
4dfe6ac6
NC		 4615 if (htab == NULL)
4616 return FALSE;
0ffa91dd 4617
33e44f2e
AM		 4618 if (!htab->elf.sgot
4619 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
4620 return FALSE;
e717da7e
AM		 4621
4622 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4623 | SEC_LINKER_CREATED);
4624
c456f082 4625 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
e717da7e 4626 if (!got
e717da7e
AM		 4627 || !bfd_set_section_alignment (abfd, got, 3))
4628 return FALSE;
65f38f15 4629
c456f082
AM		 4630 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
4631 flags | SEC_READONLY);
e717da7e 4632 if (!relgot
e717da7e 4633 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 4634 return FALSE;
e717da7e
AM		 4635
4636 ppc64_elf_tdata (abfd)->got = got;
4637 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 4638 return TRUE;
65f38f15 4639}
5bd4f169 4640
82bd7b59 4641/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 4642
b34976b6 4643static bfd_boolean
4ce794b7 4644ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 4645{
65f38f15 4646 struct ppc_link_hash_table *htab;
5bd4f169 4647
65f38f15 4648 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 4649 return FALSE;
65f38f15 4650
e717da7e 4651 htab = ppc_hash_table (info);
4dfe6ac6
NC		 4652 if (htab == NULL)
4653 return FALSE;
4654
3d4d4302 4655 htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss");
0e1862bb 4656 if (!bfd_link_pic (info))
3d4d4302 4657 htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss");
65f38f15 4658
33e44f2e 4659 if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss
0e1862bb 4660 || (!bfd_link_pic (info) && !htab->relbss))
65f38f15
AM		 4661 abort ();
4662
b34976b6 4663 return TRUE;
5bd4f169
AM		 4664}
4665
b31867b6
AM		 4666/* Follow indirect and warning symbol links. */
4667
4668static inline struct bfd_link_hash_entry *
4669follow_link (struct bfd_link_hash_entry *h)
4670{
4671 while (h->type == bfd_link_hash_indirect
4672 || h->type == bfd_link_hash_warning)
4673 h = h->u.i.link;
4674 return h;
4675}
4676
4677static inline struct elf_link_hash_entry *
4678elf_follow_link (struct elf_link_hash_entry *h)
4679{
4680 return (struct elf_link_hash_entry *) follow_link (&h->root);
4681}
4682
4683static inline struct ppc_link_hash_entry *
4684ppc_follow_link (struct ppc_link_hash_entry *h)
4685{
4686 return (struct ppc_link_hash_entry *) follow_link (&h->elf.root);
4687}
4688
40d16e0b
AM		 4689/* Merge PLT info on FROM with that on TO. */
4690
4691static void
4692move_plt_plist (struct ppc_link_hash_entry *from,
4693 struct ppc_link_hash_entry *to)
4694{
4695 if (from->elf.plt.plist != NULL)
4696 {
4697 if (to->elf.plt.plist != NULL)
4698 {
4699 struct plt_entry **entp;
4700 struct plt_entry *ent;
4701
4702 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
4703 {
4704 struct plt_entry *dent;
4705
4706 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
4707 if (dent->addend == ent->addend)
4708 {
4709 dent->plt.refcount += ent->plt.refcount;
4710 *entp = ent->next;
4711 break;
4712 }
4713 if (dent == NULL)
4714 entp = &ent->next;
4715 }
4716 *entp = to->elf.plt.plist;
4717 }
4718
4719 to->elf.plt.plist = from->elf.plt.plist;
4720 from->elf.plt.plist = NULL;
4721 }
4722}
4723
65f38f15
AM		 4724/* Copy the extra info we tack onto an elf_link_hash_entry. */
4725
4726static void
fcfa13d2
AM		 4727ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
4728 struct elf_link_hash_entry *dir,
4729 struct elf_link_hash_entry *ind)
65f38f15
AM		 4730{
4731 struct ppc_link_hash_entry *edir, *eind;
4732
4733 edir = (struct ppc_link_hash_entry *) dir;
4734 eind = (struct ppc_link_hash_entry *) ind;
4735
c79d6685
AM		 4736 edir->is_func |= eind->is_func;
4737 edir->is_func_descriptor |= eind->is_func_descriptor;
4738 edir->tls_mask |= eind->tls_mask;
4739 if (eind->oh != NULL)
4740 edir->oh = ppc_follow_link (eind->oh);
4741
4742 /* If called to transfer flags for a weakdef during processing
4743 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4744 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4745 if (!(ELIMINATE_COPY_RELOCS
4746 && eind->elf.root.type != bfd_link_hash_indirect
4747 && edir->elf.dynamic_adjusted))
4748 edir->elf.non_got_ref |= eind->elf.non_got_ref;
4749
4750 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4751 edir->elf.ref_regular |= eind->elf.ref_regular;
4752 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4753 edir->elf.needs_plt |= eind->elf.needs_plt;
a345bc8d 4754 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
c79d6685 4755
d311bc8b
AM		 4756 /* If we were called to copy over info for a weak sym, don't copy
4757 dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs
4758 in order to simplify readonly_dynrelocs and save a field in the
4759 symbol hash entry, but that means dyn_relocs can't be used in any
4760 tests about a specific symbol, or affect other symbol flags which
4761 are then tested.
4762 Chain weakdefs so we can get from the weakdef back to an alias.
4763 The list is circular so that we don't need to use u.weakdef as
4764 well as this list to look at all aliases. */
4765 if (eind->elf.root.type != bfd_link_hash_indirect)
4766 {
4767 struct ppc_link_hash_entry *cur, *add, *next;
4768
4769 add = eind;
4770 do
4771 {
4772 cur = edir->weakref;
4773 if (cur != NULL)
4774 {
4775 do
4776 {
4777 /* We can be called twice for the same symbols.
4778 Don't make multiple loops. */
4779 if (cur == add)
4780 return;
4781 cur = cur->weakref;
4782 } while (cur != edir);
4783 }
4784 next = add->weakref;
4785 if (cur != add)
4786 {
4787 add->weakref = edir->weakref != NULL ? edir->weakref : edir;
4788 edir->weakref = add;
4789 }
4790 add = next;
4791 } while (add != NULL && add != eind);
4792 return;
4793 }
4794
411e1bfb 4795 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 4796 if (eind->dyn_relocs != NULL)
65f38f15 4797 {
bbd7ec4a
AM		 4798 if (edir->dyn_relocs != NULL)
4799 {
6061a67d
AM		 4800 struct elf_dyn_relocs **pp;
4801 struct elf_dyn_relocs *p;
bbd7ec4a 4802
fcfa13d2 4803 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a
AM		 4804 list. Merge any entries against the same section. */
4805 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
4806 {
6061a67d 4807 struct elf_dyn_relocs *q;
bbd7ec4a
AM		 4808
4809 for (q = edir->dyn_relocs; q != NULL; q = q->next)
4810 if (q->sec == p->sec)
4811 {
4812 q->pc_count += p->pc_count;
4813 q->count += p->count;
4814 *pp = p->next;
4815 break;
4816 }
4817 if (q == NULL)
4818 pp = &p->next;
4819 }
4820 *pp = edir->dyn_relocs;
4821 }
4822
65f38f15
AM		 4823 edir->dyn_relocs = eind->dyn_relocs;
4824 eind->dyn_relocs = NULL;
4825 }
65f38f15 4826
81848ca0
AM		 4827 /* Copy over got entries that we may have already seen to the
4828 symbol which just became indirect. */
411e1bfb
AM		 4829 if (eind->elf.got.glist != NULL)
4830 {
4831 if (edir->elf.got.glist != NULL)
4832 {
4833 struct got_entry **entp;
4834 struct got_entry *ent;
4835
4836 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4837 {
4838 struct got_entry *dent;
4839
4840 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4841 if (dent->addend == ent->addend
e717da7e 4842 && dent->owner == ent->owner
411e1bfb
AM		 4843 && dent->tls_type == ent->tls_type)
4844 {
4845 dent->got.refcount += ent->got.refcount;
4846 *entp = ent->next;
4847 break;
4848 }
4849 if (dent == NULL)
4850 entp = &ent->next;
4851 }
4852 *entp = edir->elf.got.glist;
4853 }
4854
4855 edir->elf.got.glist = eind->elf.got.glist;
4856 eind->elf.got.glist = NULL;
4857 }
4858
4859 /* And plt entries. */
40d16e0b 4860 move_plt_plist (eind, edir);
411e1bfb 4861
fcfa13d2 4862 if (eind->elf.dynindx != -1)
411e1bfb 4863 {
fcfa13d2
AM		 4864 if (edir->elf.dynindx != -1)
4865 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4866 edir->elf.dynstr_index);
411e1bfb
AM		 4867 edir->elf.dynindx = eind->elf.dynindx;
4868 edir->elf.dynstr_index = eind->elf.dynstr_index;
4869 eind->elf.dynindx = -1;
4870 eind->elf.dynstr_index = 0;
4871 }
411e1bfb
AM		 4872}
4873
8387904d
AM		 4874/* Find the function descriptor hash entry from the given function code
4875 hash entry FH. Link the entries via their OH fields. */
4876
4877static struct ppc_link_hash_entry *
b31867b6 4878lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
8387904d
AM		 4879{
4880 struct ppc_link_hash_entry *fdh = fh->oh;
4881
4882 if (fdh == NULL)
4883 {
4884 const char *fd_name = fh->elf.root.root.string + 1;
4885
4886 fdh = (struct ppc_link_hash_entry *)
4887 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
b31867b6
AM		 4888 if (fdh == NULL)
4889 return fdh;
4890
4891 fdh->is_func_descriptor = 1;
4892 fdh->oh = fh;
4893 fh->is_func = 1;
4894 fh->oh = fdh;
8387904d
AM		 4895 }
4896
b31867b6 4897 return ppc_follow_link (fdh);
8387904d
AM		 4898}
4899
bb700d78
AM		 4900/* Make a fake function descriptor sym for the code sym FH. */
4901
4902static struct ppc_link_hash_entry *
4903make_fdh (struct bfd_link_info *info,
908b32fc 4904 struct ppc_link_hash_entry *fh)
bb700d78
AM		 4905{
4906 bfd *abfd;
4907 asymbol *newsym;
4908 struct bfd_link_hash_entry *bh;
4909 struct ppc_link_hash_entry *fdh;
4910
4911 abfd = fh->elf.root.u.undef.abfd;
4912 newsym = bfd_make_empty_symbol (abfd);
4913 newsym->name = fh->elf.root.root.string + 1;
4914 newsym->section = bfd_und_section_ptr;
4915 newsym->value = 0;
908b32fc 4916 newsym->flags = BSF_WEAK;
bb700d78
AM		 4917
4918 bh = NULL;
4919 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4920 newsym->flags, newsym->section,
4921 newsym->value, NULL, FALSE, FALSE,
4922 &bh))
4923 return NULL;
4924
4925 fdh = (struct ppc_link_hash_entry *) bh;
4926 fdh->elf.non_elf = 0;
908b32fc
AM		 4927 fdh->fake = 1;
4928 fdh->is_func_descriptor = 1;
4929 fdh->oh = fh;
4930 fh->is_func = 1;
4931 fh->oh = fdh;
bb700d78
AM		 4932 return fdh;
4933}
4934
8387904d
AM		 4935/* Fix function descriptor symbols defined in .opd sections to be
4936 function type. */
555cd476
AM		 4937
4938static bfd_boolean
c16153ae 4939ppc64_elf_add_symbol_hook (bfd *ibfd,
e054468f 4940 struct bfd_link_info *info,
555cd476 4941 Elf_Internal_Sym *isym,
6911b7dc 4942 const char **name,
555cd476
AM		 4943 flagword *flags ATTRIBUTE_UNUSED,
4944 asection **sec,
b53dfeb2 4945 bfd_vma *value)
555cd476 4946{
a43942db 4947 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
f1885d1e
AM		 4948 && (ibfd->flags & DYNAMIC) == 0
4949 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 4950 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
f64b2e8d 4951
b53dfeb2 4952 if (*sec != NULL
f1885d1e 4953 && strcmp ((*sec)->name, ".opd") == 0)
b53dfeb2
AM		 4954 {
4955 asection *code_sec;
4956
4957 if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
4958 || ELF_ST_TYPE (isym->st_info) == STT_FUNC))
4959 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
4960
4961 /* If the symbol is a function defined in .opd, and the function
4962 code is in a discarded group, let it appear to be undefined. */
0e1862bb 4963 if (!bfd_link_relocatable (info)
b53dfeb2
AM		 4964 && (*sec)->reloc_count != 0
4965 && opd_entry_value (*sec, *value, &code_sec, NULL,
4966 FALSE) != (bfd_vma) -1
4967 && discarded_section (code_sec))
4968 {
4969 *sec = bfd_und_section_ptr;
4970 isym->st_shndx = SHN_UNDEF;
4971 }
4972 }
dbd1e97e
AM		 4973 else if (*sec != NULL
4974 && strcmp ((*sec)->name, ".toc") == 0
4975 && ELF_ST_TYPE (isym->st_info) == STT_OBJECT)
4976 {
4977 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4978 if (htab != NULL)
4979 htab->params->object_in_toc = 1;
4980 }
433817dd 4981
6911b7dc
AM		 4982 if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0)
4983 {
4984 if (abiversion (ibfd) == 0)
4985 set_abiversion (ibfd, 2);
4986 else if (abiversion (ibfd) == 1)
4987 {
4988 info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other"
4989 " for ABI version 1\n"), name);
4990 bfd_set_error (bfd_error_bad_value);
4991 return FALSE;
4992 }
4993 }
4994
555cd476
AM		 4995 return TRUE;
4996}
4997
6911b7dc
AM		 4998/* Merge non-visibility st_other attributes: local entry point. */
4999
5000static void
5001ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h,
5002 const Elf_Internal_Sym *isym,
5003 bfd_boolean definition,
5004 bfd_boolean dynamic)
5005{
5006 if (definition && !dynamic)
5007 h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1))
5008 | ELF_ST_VISIBILITY (h->other));
5009}
5010
8387904d 5011/* This function makes an old ABI object reference to ".bar" cause the
908b32fc
AM		 5012 inclusion of a new ABI object archive that defines "bar".
5013 NAME is a symbol defined in an archive. Return a symbol in the hash
5014 table that might be satisfied by the archive symbols. */
8387904d
AM		 5015
5016static struct elf_link_hash_entry *
5017ppc64_elf_archive_symbol_lookup (bfd *abfd,
5018 struct bfd_link_info *info,
5019 const char *name)
5020{
5021 struct elf_link_hash_entry *h;
5022 char *dot_name;
5023 size_t len;
5024
5025 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
908b32fc
AM		 5026 if (h != NULL
5027 /* Don't return this sym if it is a fake function descriptor
5028 created by add_symbol_adjust. */
5029 && !(h->root.type == bfd_link_hash_undefweak
5030 && ((struct ppc_link_hash_entry *) h)->fake))
8387904d
AM		 5031 return h;
5032
5033 if (name[0] == '.')
5034 return h;
5035
5036 len = strlen (name);
5037 dot_name = bfd_alloc (abfd, len + 2);
5038 if (dot_name == NULL)
5039 return (struct elf_link_hash_entry *) 0 - 1;
5040 dot_name[0] = '.';
5041 memcpy (dot_name + 1, name, len + 1);
5042 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
5043 bfd_release (abfd, dot_name);
5044 return h;
5045}
5046
5047/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM		 5048 new ABI object defines "bar". Well, at least, undefined dot symbols
5049 are made weak. This stops later archive searches from including an
5050 object if we already have a function descriptor definition. It also
35b0ce59
AM		 5051 prevents the linker complaining about undefined symbols.
5052 We also check and correct mismatched symbol visibility here. The
5053 most restrictive visibility of the function descriptor and the
5054 function entry symbol is used. */
8387904d
AM		 5055
5056static bfd_boolean
b3fac117 5057add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
8387904d 5058{
8387904d
AM		 5059 struct ppc_link_hash_table *htab;
5060 struct ppc_link_hash_entry *fdh;
5061
b3fac117 5062 if (eh->elf.root.type == bfd_link_hash_indirect)
8387904d
AM		 5063 return TRUE;
5064
b3fac117
AM		 5065 if (eh->elf.root.type == bfd_link_hash_warning)
5066 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
8387904d 5067
b3fac117
AM		 5068 if (eh->elf.root.root.string[0] != '.')
5069 abort ();
8387904d 5070
b3fac117 5071 htab = ppc_hash_table (info);
4dfe6ac6
NC		 5072 if (htab == NULL)
5073 return FALSE;
5074
b31867b6
AM		 5075 fdh = lookup_fdh (eh, htab);
5076 if (fdh == NULL)
5077 {
0e1862bb 5078 if (!bfd_link_relocatable (info)
b31867b6
AM		 5079 && (eh->elf.root.type == bfd_link_hash_undefined
5080 || eh->elf.root.type == bfd_link_hash_undefweak)
5081 && eh->elf.ref_regular)
5082 {
5083 /* Make an undefweak function descriptor sym, which is enough to
5084 pull in an --as-needed shared lib, but won't cause link
5085 errors. Archives are handled elsewhere. */
5086 fdh = make_fdh (info, eh);
5087 if (fdh == NULL)
5088 return FALSE;
5089 fdh->elf.ref_regular = 1;
5090 }
bb700d78 5091 }
b31867b6 5092 else
8387904d 5093 {
35b0ce59
AM		 5094 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
5095 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
5096 if (entry_vis < descr_vis)
5097 fdh->elf.other += entry_vis - descr_vis;
5098 else if (entry_vis > descr_vis)
5099 eh->elf.other += descr_vis - entry_vis;
5100
e87d886e
AM		 5101 if ((fdh->elf.root.type == bfd_link_hash_defined
5102 || fdh->elf.root.type == bfd_link_hash_defweak)
5103 && eh->elf.root.type == bfd_link_hash_undefined)
35b0ce59
AM		 5104 {
5105 eh->elf.root.type = bfd_link_hash_undefweak;
5106 eh->was_undefined = 1;
5107 htab->twiddled_syms = 1;
5108 }
8387904d 5109 }
99877b66 5110
8387904d
AM		 5111 return TRUE;
5112}
5113
f6c7c3e8
AM		 5114/* Set up opd section info and abiversion for IBFD, and process list
5115 of dot-symbols we made in link_hash_newfunc. */
b3fac117 5116
8387904d 5117static bfd_boolean
f6c7c3e8 5118ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info)
8387904d 5119{
99877b66 5120 struct ppc_link_hash_table *htab;
b3fac117 5121 struct ppc_link_hash_entry **p, *eh;
459609d6 5122 asection *opd = bfd_get_section_by_name (ibfd, ".opd");
433817dd 5123
459609d6 5124 if (opd != NULL && opd->size != 0)
b3fac117 5125 {
459609d6
AM		 5126 if (abiversion (ibfd) == 0)
5127 set_abiversion (ibfd, 1);
8a2058b5 5128 else if (abiversion (ibfd) >= 2)
f6c7c3e8 5129 {
695344c0 5130 /* xgettext:c-format */
459609d6
AM		 5131 info->callbacks->einfo (_("%P: %B .opd not allowed in ABI"
5132 " version %d\n"),
5133 ibfd, abiversion (ibfd));
5134 bfd_set_error (bfd_error_bad_value);
5135 return FALSE;
f6c7c3e8
AM		 5136 }
5137
459609d6
AM		 5138 if ((ibfd->flags & DYNAMIC) == 0
5139 && (opd->flags & SEC_RELOC) != 0
5140 && opd->reloc_count != 0
5141 && !bfd_is_abs_section (opd->output_section))
b3fac117 5142 {
459609d6
AM		 5143 /* Garbage collection needs some extra help with .opd sections.
5144 We don't want to necessarily keep everything referenced by
5145 relocs in .opd, as that would keep all functions. Instead,
5146 if we reference an .opd symbol (a function descriptor), we
5147 want to keep the function code symbol's section. This is
5148 easy for global symbols, but for local syms we need to keep
5149 information about the associated function section. */
5150 bfd_size_type amt;
5151 asection **opd_sym_map;
5152
51aecdc5 5153 amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map);
459609d6
AM		 5154 opd_sym_map = bfd_zalloc (ibfd, amt);
5155 if (opd_sym_map == NULL)
b3fac117 5156 return FALSE;
459609d6
AM		 5157 ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map;
5158 BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal);
5159 ppc64_elf_section_data (opd)->sec_type = sec_opd;
b3fac117
AM		 5160 }
5161 }
5162
459609d6
AM		 5163 if (!is_ppc64_elf (info->output_bfd))
5164 return TRUE;
5165 htab = ppc_hash_table (info);
5166 if (htab == NULL)
5167 return FALSE;
5168
5169 /* For input files without an explicit abiversion in e_flags
5170 we should have flagged any with symbol st_other bits set
5171 as ELFv1 and above flagged those with .opd as ELFv2.
5172 Set the output abiversion if not yet set, and for any input
5173 still ambiguous, take its abiversion from the output.
5174 Differences in ABI are reported later. */
5175 if (abiversion (info->output_bfd) == 0)
5176 set_abiversion (info->output_bfd, abiversion (ibfd));
5177 else if (abiversion (ibfd) == 0)
5178 set_abiversion (ibfd, abiversion (info->output_bfd));
5179
5180 p = &htab->dot_syms;
5181 while ((eh = *p) != NULL)
5182 {
5183 *p = NULL;
5184 if (&eh->elf == htab->elf.hgot)
5185 ;
5186 else if (htab->elf.hgot == NULL
5187 && strcmp (eh->elf.root.root.string, ".TOC.") == 0)
5188 htab->elf.hgot = &eh->elf;
5189 else if (!add_symbol_adjust (eh, info))
5190 return FALSE;
5191 p = &eh->u.next_dot_sym;
5192 }
5193
b3fac117
AM		 5194 /* Clear the list for non-ppc64 input files. */
5195 p = &htab->dot_syms;
5196 while ((eh = *p) != NULL)
5197 {
5198 *p = NULL;
5199 p = &eh->u.next_dot_sym;
5200 }
99877b66
AM		 5201
5202 /* We need to fix the undefs list for any syms we have twiddled to
57e7d118 5203 undefweak. */
99877b66
AM		 5204 if (htab->twiddled_syms)
5205 {
77cfaee6 5206 bfd_link_repair_undef_list (&htab->elf.root);
99877b66
AM		 5207 htab->twiddled_syms = 0;
5208 }
b3fac117 5209 return TRUE;
8387904d
AM		 5210}
5211
97fed1c9
JJ		 5212/* Undo hash table changes when an --as-needed input file is determined
5213 not to be needed. */
5214
5215static bfd_boolean
e5034e59
AM		 5216ppc64_elf_notice_as_needed (bfd *ibfd,
5217 struct bfd_link_info *info,
5218 enum notice_asneeded_action act)
97fed1c9 5219{
e5034e59
AM		 5220 if (act == notice_not_needed)
5221 {
5222 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4dfe6ac6 5223
e5034e59
AM		 5224 if (htab == NULL)
5225 return FALSE;
4dfe6ac6 5226
e5034e59
AM		 5227 htab->dot_syms = NULL;
5228 }
5229 return _bfd_elf_notice_as_needed (ibfd, info, act);
97fed1c9
JJ		 5230}
5231
aa374f67
AM		 5232/* If --just-symbols against a final linked binary, then assume we need
5233 toc adjusting stubs when calling functions defined there. */
5234
5235static void
5236ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info)
5237{
5238 if ((sec->flags & SEC_CODE) != 0
5239 && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0
5240 && is_ppc64_elf (sec->owner))
5241 {
2c3f079f
AM		 5242 if (abiversion (sec->owner) >= 2
5243 || bfd_get_section_by_name (sec->owner, ".opd") != NULL)
aa374f67
AM		 5244 sec->has_toc_reloc = 1;
5245 }
5246 _bfd_elf_link_just_syms (sec, info);
5247}
5248
e054468f 5249static struct plt_entry **
4ce794b7
AM		 5250update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
5251 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 5252{
5253 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e054468f 5254 struct plt_entry **local_plt;
f961d9dd 5255 unsigned char *local_got_tls_masks;
411e1bfb
AM		 5256
5257 if (local_got_ents == NULL)
5258 {
5259 bfd_size_type size = symtab_hdr->sh_info;
5260
e054468f
AM		 5261 size *= (sizeof (*local_got_ents)
5262 + sizeof (*local_plt)
5263 + sizeof (*local_got_tls_masks));
4ce794b7 5264 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb 5265 if (local_got_ents == NULL)
e054468f 5266 return NULL;
411e1bfb
AM		 5267 elf_local_got_ents (abfd) = local_got_ents;
5268 }
5269
e054468f 5270 if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
411e1bfb
AM		 5271 {
5272 struct got_entry *ent;
5273
5274 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 5275 if (ent->addend == r_addend
5276 && ent->owner == abfd
5277 && ent->tls_type == tls_type)
411e1bfb
AM		 5278 break;
5279 if (ent == NULL)
5280 {
5281 bfd_size_type amt = sizeof (*ent);
4ce794b7 5282 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 5283 if (ent == NULL)
5284 return FALSE;
5285 ent->next = local_got_ents[r_symndx];
5286 ent->addend = r_addend;
e717da7e 5287 ent->owner = abfd;
411e1bfb 5288 ent->tls_type = tls_type;
927be08e 5289 ent->is_indirect = FALSE;
411e1bfb
AM		 5290 ent->got.refcount = 0;
5291 local_got_ents[r_symndx] = ent;
5292 }
5293 ent->got.refcount += 1;
5294 }
5295
e054468f 5296 local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
f961d9dd 5297 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
e7b938ca 5298 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM		 5299
5300 return local_plt + r_symndx;
65f38f15
AM		 5301}
5302
411e1bfb 5303static bfd_boolean
e054468f 5304update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend)
1e2f5b6e 5305{
411e1bfb 5306 struct plt_entry *ent;
1e2f5b6e 5307
e054468f 5308 for (ent = *plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5309 if (ent->addend == addend)
5310 break;
5311 if (ent == NULL)
1e2f5b6e 5312 {
411e1bfb 5313 bfd_size_type amt = sizeof (*ent);
4ce794b7 5314 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 5315 if (ent == NULL)
5316 return FALSE;
e054468f 5317 ent->next = *plist;
411e1bfb
AM		 5318 ent->addend = addend;
5319 ent->plt.refcount = 0;
e054468f 5320 *plist = ent;
1e2f5b6e 5321 }
411e1bfb 5322 ent->plt.refcount += 1;
b34976b6 5323 return TRUE;
1e2f5b6e
AM		 5324}
5325
e054468f
AM		 5326static bfd_boolean
5327is_branch_reloc (enum elf_ppc64_reloc_type r_type)
5328{
5329 return (r_type == R_PPC64_REL24
5330 || r_type == R_PPC64_REL14
5331 || r_type == R_PPC64_REL14_BRTAKEN
5332 || r_type == R_PPC64_REL14_BRNTAKEN
5333 || r_type == R_PPC64_ADDR24
5334 || r_type == R_PPC64_ADDR14
5335 || r_type == R_PPC64_ADDR14_BRTAKEN
5336 || r_type == R_PPC64_ADDR14_BRNTAKEN);
5337}
5338
5bd4f169 5339/* Look through the relocs for a section during the first phase, and
65f38f15 5340 calculate needed space in the global offset table, procedure
5d1634d7 5341 linkage table, and dynamic reloc sections. */
5bd4f169 5342
b34976b6 5343static bfd_boolean
4ce794b7
AM		 5344ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
5345 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5346{
65f38f15 5347 struct ppc_link_hash_table *htab;
5bd4f169 5348 Elf_Internal_Shdr *symtab_hdr;
c7e2358a 5349 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 5350 const Elf_Internal_Rela *rel;
5351 const Elf_Internal_Rela *rel_end;
5bd4f169 5352 asection *sreloc;
1e2f5b6e 5353 asection **opd_sym_map;
3a71aa26 5354 struct elf_link_hash_entry *tga, *dottga;
5bd4f169 5355
0e1862bb 5356 if (bfd_link_relocatable (info))
b34976b6 5357 return TRUE;
5bd4f169 5358
680a3378
AM		 5359 /* Don't do anything special with non-loaded, non-alloced sections.
5360 In particular, any relocs in such sections should not affect GOT
5361 and PLT reference counting (ie. we don't allow them to create GOT
5362 or PLT entries), there's no possibility or desire to optimize TLS
5363 relocs, and there's not much point in propagating relocs to shared
5364 libs that the dynamic linker won't relocate. */
5365 if ((sec->flags & SEC_ALLOC) == 0)
5366 return TRUE;
5367
0c8d6e5c 5368 BFD_ASSERT (is_ppc64_elf (abfd));
0ffa91dd 5369
65f38f15 5370 htab = ppc_hash_table (info);
4dfe6ac6
NC		 5371 if (htab == NULL)
5372 return FALSE;
5373
3a71aa26
AM		 5374 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5375 FALSE, FALSE, TRUE);
5376 dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
5377 FALSE, FALSE, TRUE);
0ffa91dd 5378 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 5379 sym_hashes = elf_sym_hashes (abfd);
5bd4f169 5380 sreloc = NULL;
1e2f5b6e 5381 opd_sym_map = NULL;
f6c7c3e8
AM		 5382 if (ppc64_elf_section_data (sec) != NULL
5383 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
5384 opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec;
5bd4f169
AM		 5385
5386 rel_end = relocs + sec->reloc_count;
5387 for (rel = relocs; rel < rel_end; rel++)
5388 {
5389 unsigned long r_symndx;
5390 struct elf_link_hash_entry *h;
04c9666a 5391 enum elf_ppc64_reloc_type r_type;
727fc41e 5392 int tls_type;
7c8fe5c4 5393 struct _ppc64_elf_section_data *ppc64_sec;
cbf95972 5394 struct plt_entry **ifunc, **plt_list;
5bd4f169
AM		 5395
5396 r_symndx = ELF64_R_SYM (rel->r_info);
5397 if (r_symndx < symtab_hdr->sh_info)
5398 h = NULL;
5399 else
973a3492
L		 5400 {
5401 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 5402 h = elf_follow_link (h);
81fbe831
AM		 5403
5404 /* PR15323, ref flags aren't set for references in the same
5405 object. */
5406 h->root.non_ir_ref = 1;
1c865ab2
AM		 5407
5408 if (h == htab->elf.hgot)
5409 sec->has_toc_reloc = 1;
973a3492 5410 }
5bd4f169 5411
727fc41e 5412 tls_type = 0;
e054468f 5413 ifunc = NULL;
25f23106
AM		 5414 if (h != NULL)
5415 {
5416 if (h->type == STT_GNU_IFUNC)
5417 {
5418 h->needs_plt = 1;
5419 ifunc = &h->plt.plist;
5420 }
5421 }
5422 else
5423 {
5424 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5425 abfd, r_symndx);
5426 if (isym == NULL)
5427 return FALSE;
5428
5429 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
5430 {
5431 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
5432 rel->r_addend, PLT_IFUNC);
5433 if (ifunc == NULL)
5434 return FALSE;
5435 }
5436 }
727fc41e 5437
cbf95972 5438 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 5439 switch (r_type)
5bd4f169 5440 {
727fc41e
AM		 5441 case R_PPC64_TLSGD:
5442 case R_PPC64_TLSLD:
5443 /* These special tls relocs tie a call to __tls_get_addr with
5444 its parameter symbol. */
5445 break;
5446
411e1bfb
AM		 5447 case R_PPC64_GOT_TLSLD16:
5448 case R_PPC64_GOT_TLSLD16_LO:
5449 case R_PPC64_GOT_TLSLD16_HI:
5450 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 5451 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5452 goto dogottls;
5453
5454 case R_PPC64_GOT_TLSGD16:
5455 case R_PPC64_GOT_TLSGD16_LO:
5456 case R_PPC64_GOT_TLSGD16_HI:
5457 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5458 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5459 goto dogottls;
5460
5461 case R_PPC64_GOT_TPREL16_DS:
5462 case R_PPC64_GOT_TPREL16_LO_DS:
5463 case R_PPC64_GOT_TPREL16_HI:
5464 case R_PPC64_GOT_TPREL16_HA:
0e1862bb 5465 if (bfd_link_pic (info))
411e1bfb
AM		 5466 info->flags |= DF_STATIC_TLS;
5467 tls_type = TLS_TLS | TLS_TPREL;
5468 goto dogottls;
5469
5470 case R_PPC64_GOT_DTPREL16_DS:
5471 case R_PPC64_GOT_DTPREL16_LO_DS:
5472 case R_PPC64_GOT_DTPREL16_HI:
5473 case R_PPC64_GOT_DTPREL16_HA:
5474 tls_type = TLS_TLS | TLS_DTPREL;
5475 dogottls:
5476 sec->has_tls_reloc = 1;
1a0670f3 5477 /* Fall through */
411e1bfb 5478
5bd4f169 5479 case R_PPC64_GOT16:
5bd4f169 5480 case R_PPC64_GOT16_DS:
65f38f15
AM		 5481 case R_PPC64_GOT16_HA:
5482 case R_PPC64_GOT16_HI:
5483 case R_PPC64_GOT16_LO:
5bd4f169 5484 case R_PPC64_GOT16_LO_DS:
65f38f15 5485 /* This symbol requires a global offset table entry. */
4c52953f 5486 sec->has_toc_reloc = 1;
33c0ec9d
AM		 5487 if (r_type == R_PPC64_GOT_TLSLD16
5488 || r_type == R_PPC64_GOT_TLSGD16
5489 || r_type == R_PPC64_GOT_TPREL16_DS
5490 || r_type == R_PPC64_GOT_DTPREL16_DS
5491 || r_type == R_PPC64_GOT16
5492 || r_type == R_PPC64_GOT16_DS)
5493 {
5494 htab->do_multi_toc = 1;
d77c8a4b 5495 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
33c0ec9d
AM		 5496 }
5497
e717da7e
AM		 5498 if (ppc64_elf_tdata (abfd)->got == NULL
5499 && !create_got_section (abfd, info))
b34976b6 5500 return FALSE;
5bd4f169
AM		 5501
5502 if (h != NULL)
5503 {
411e1bfb
AM		 5504 struct ppc_link_hash_entry *eh;
5505 struct got_entry *ent;
65f38f15 5506
411e1bfb
AM		 5507 eh = (struct ppc_link_hash_entry *) h;
5508 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
5509 if (ent->addend == rel->r_addend
e717da7e 5510 && ent->owner == abfd
411e1bfb
AM		 5511 && ent->tls_type == tls_type)
5512 break;
5513 if (ent == NULL)
5bd4f169 5514 {
411e1bfb 5515 bfd_size_type amt = sizeof (*ent);
4ce794b7 5516 ent = bfd_alloc (abfd, amt);
411e1bfb 5517 if (ent == NULL)
b34976b6 5518 return FALSE;
411e1bfb
AM		 5519 ent->next = eh->elf.got.glist;
5520 ent->addend = rel->r_addend;
e717da7e 5521 ent->owner = abfd;
411e1bfb 5522 ent->tls_type = tls_type;
927be08e 5523 ent->is_indirect = FALSE;
411e1bfb
AM		 5524 ent->got.refcount = 0;
5525 eh->elf.got.glist = ent;
5bd4f169 5526 }
411e1bfb 5527 ent->got.refcount += 1;
e7b938ca 5528 eh->tls_mask |= tls_type;
5bd4f169 5529 }
411e1bfb
AM		 5530 else
5531 /* This is a global offset table entry for a local symbol. */
5532 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5533 rel->r_addend, tls_type))
5534 return FALSE;
a345bc8d
AM		 5535
5536 /* We may also need a plt entry if the symbol turns out to be
5537 an ifunc. */
0e1862bb 5538 if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1)
a345bc8d
AM		 5539 {
5540 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5541 return FALSE;
5542 }
5bd4f169
AM		 5543 break;
5544
5bd4f169 5545 case R_PPC64_PLT16_HA:
65f38f15
AM		 5546 case R_PPC64_PLT16_HI:
5547 case R_PPC64_PLT16_LO:
5548 case R_PPC64_PLT32:
5549 case R_PPC64_PLT64:
cbf95972
AM		 5550 /* This symbol requires a procedure linkage table entry. */
5551 plt_list = ifunc;
5552 if (h != NULL)
e054468f 5553 {
e054468f
AM		 5554 h->needs_plt = 1;
5555 if (h->root.root.string[0] == '.'
5556 && h->root.root.string[1] != '\0')
5557 ((struct ppc_link_hash_entry *) h)->is_func = 1;
cbf95972
AM		 5558 plt_list = &h->plt.plist;
5559 }
5560 if (plt_list == NULL)
5561 {
5562 /* It does not make sense to have a procedure linkage
5563 table entry for a non-ifunc local symbol. */
5564 info->callbacks->einfo
695344c0 5565 /* xgettext:c-format */
cbf95972
AM		 5566 (_("%P: %H: %s reloc against local symbol\n"),
5567 abfd, sec, rel->r_offset,
5568 ppc64_elf_howto_table[r_type]->name);
5569 bfd_set_error (bfd_error_bad_value);
5570 return FALSE;
e054468f 5571 }
cbf95972
AM		 5572 if (!update_plt_info (abfd, plt_list, rel->r_addend))
5573 return FALSE;
5bd4f169
AM		 5574 break;
5575
5576 /* The following relocations don't need to propagate the
5577 relocation if linking a shared object since they are
5578 section relative. */
5579 case R_PPC64_SECTOFF:
5580 case R_PPC64_SECTOFF_LO:
5581 case R_PPC64_SECTOFF_HI:
5582 case R_PPC64_SECTOFF_HA:
5583 case R_PPC64_SECTOFF_DS:
5584 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 5585 case R_PPC64_DTPREL16:
5586 case R_PPC64_DTPREL16_LO:
5587 case R_PPC64_DTPREL16_HI:
5588 case R_PPC64_DTPREL16_HA:
5589 case R_PPC64_DTPREL16_DS:
5590 case R_PPC64_DTPREL16_LO_DS:
f9c6b907
AM		 5591 case R_PPC64_DTPREL16_HIGH:
5592 case R_PPC64_DTPREL16_HIGHA:
411e1bfb
AM		 5593 case R_PPC64_DTPREL16_HIGHER:
5594 case R_PPC64_DTPREL16_HIGHERA:
5595 case R_PPC64_DTPREL16_HIGHEST:
5596 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 5597 break;
5598
ad8e1ba5 5599 /* Nor do these. */
25f23106
AM		 5600 case R_PPC64_REL16:
5601 case R_PPC64_REL16_LO:
5602 case R_PPC64_REL16_HI:
5603 case R_PPC64_REL16_HA:
a680de9a 5604 case R_PPC64_REL16DX_HA:
25f23106
AM		 5605 break;
5606
45965137
AM		 5607 /* Not supported as a dynamic relocation. */
5608 case R_PPC64_ADDR64_LOCAL:
0e1862bb 5609 if (bfd_link_pic (info))
45965137
AM		 5610 {
5611 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5612 ppc_howto_init ();
695344c0 5613 /* xgettext:c-format */
45965137
AM		 5614 info->callbacks->einfo (_("%P: %H: %s reloc unsupported "
5615 "in shared libraries and PIEs.\n"),
5616 abfd, sec, rel->r_offset,
5617 ppc64_elf_howto_table[r_type]->name);
5618 bfd_set_error (bfd_error_bad_value);
5619 return FALSE;
5620 }
5621 break;
5622
ad8e1ba5 5623 case R_PPC64_TOC16:
33c0ec9d
AM		 5624 case R_PPC64_TOC16_DS:
5625 htab->do_multi_toc = 1;
d77c8a4b 5626 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
1a0670f3 5627 /* Fall through. */
ad8e1ba5
AM		 5628 case R_PPC64_TOC16_LO:
5629 case R_PPC64_TOC16_HI:
5630 case R_PPC64_TOC16_HA:
ad8e1ba5 5631 case R_PPC64_TOC16_LO_DS:
4c52953f 5632 sec->has_toc_reloc = 1;
ad8e1ba5
AM		 5633 break;
5634
006589cf
AM		 5635 /* Marker reloc. */
5636 case R_PPC64_ENTRY:
5637 break;
5638
5bd4f169
AM		 5639 /* This relocation describes the C++ object vtable hierarchy.
5640 Reconstruct it for later use during GC. */
5641 case R_PPC64_GNU_VTINHERIT:
c152c796 5642 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5643 return FALSE;
5bd4f169
AM		 5644 break;
5645
5646 /* This relocation describes which C++ vtable entries are actually
5647 used. Record for later use during GC. */
5648 case R_PPC64_GNU_VTENTRY:
d17e0c6e
JB		 5649 BFD_ASSERT (h != NULL);
5650 if (h != NULL
5651 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5652 return FALSE;
5bd4f169
AM		 5653 break;
5654
721956f4
AM		 5655 case R_PPC64_REL14:
5656 case R_PPC64_REL14_BRTAKEN:
5657 case R_PPC64_REL14_BRNTAKEN:
220c76dd
AM		 5658 {
5659 asection *dest = NULL;
5660
5661 /* Heuristic: If jumping outside our section, chances are
5662 we are going to need a stub. */
5663 if (h != NULL)
5664 {
5665 /* If the sym is weak it may be overridden later, so
5666 don't assume we know where a weak sym lives. */
5667 if (h->root.type == bfd_link_hash_defined)
5668 dest = h->root.u.def.section;
5669 }
5670 else
87d72d41
AM		 5671 {
5672 Elf_Internal_Sym *isym;
5673
5674 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5675 abfd, r_symndx);
5676 if (isym == NULL)
5677 return FALSE;
5678
5679 dest = bfd_section_from_elf_index (abfd, isym->st_shndx);
5680 }
5681
220c76dd 5682 if (dest != sec)
7c8fe5c4 5683 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
220c76dd 5684 }
721956f4
AM		 5685 /* Fall through. */
5686
5d1634d7 5687 case R_PPC64_REL24:
cbf95972
AM		 5688 plt_list = ifunc;
5689 if (h != NULL)
5d1634d7 5690 {
e054468f
AM		 5691 h->needs_plt = 1;
5692 if (h->root.root.string[0] == '.'
5693 && h->root.root.string[1] != '\0')
5694 ((struct ppc_link_hash_entry *) h)->is_func = 1;
cbf95972 5695
3a71aa26 5696 if (h == tga || h == dottga)
cbf95972
AM		 5697 {
5698 sec->has_tls_reloc = 1;
5699 if (rel != relocs
5700 && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
5701 || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
5702 /* We have a new-style __tls_get_addr call with
5703 a marker reloc. */
5704 ;
5705 else
5706 /* Mark this section as having an old-style call. */
5707 sec->has_tls_get_addr_call = 1;
5708 }
5709 plt_list = &h->plt.plist;
411e1bfb 5710 }
cbf95972
AM		 5711
5712 /* We may need a .plt entry if the function this reloc
5713 refers to is in a shared lib. */
5714 if (plt_list
5715 && !update_plt_info (abfd, plt_list, rel->r_addend))
5716 return FALSE;
411e1bfb
AM		 5717 break;
5718
cbf95972
AM		 5719 case R_PPC64_ADDR14:
5720 case R_PPC64_ADDR14_BRNTAKEN:
5721 case R_PPC64_ADDR14_BRTAKEN:
5722 case R_PPC64_ADDR24:
5723 goto dodyn;
5724
411e1bfb
AM		 5725 case R_PPC64_TPREL64:
5726 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
0e1862bb 5727 if (bfd_link_pic (info))
411e1bfb
AM		 5728 info->flags |= DF_STATIC_TLS;
5729 goto dotlstoc;
5730
5731 case R_PPC64_DTPMOD64:
5732 if (rel + 1 < rel_end
5733 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
5734 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 5735 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 5736 else
951fd09b 5737 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 5738 goto dotlstoc;
5739
5740 case R_PPC64_DTPREL64:
5741 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
5742 if (rel != relocs
5743 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
5744 && rel[-1].r_offset == rel->r_offset - 8)
5745 /* This is the second reloc of a dtpmod, dtprel pair.
5746 Don't mark with TLS_DTPREL. */
5747 goto dodyn;
5748
5749 dotlstoc:
5750 sec->has_tls_reloc = 1;
5751 if (h != NULL)
5752 {
5753 struct ppc_link_hash_entry *eh;
5754 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5755 eh->tls_mask |= tls_type;
411e1bfb
AM		 5756 }
5757 else
5758 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5759 rel->r_addend, tls_type))
5760 return FALSE;
5761
7c8fe5c4
AM		 5762 ppc64_sec = ppc64_elf_section_data (sec);
5763 if (ppc64_sec->sec_type != sec_toc)
411e1bfb 5764 {
3a71aa26
AM		 5765 bfd_size_type amt;
5766
e7b938ca 5767 /* One extra to simplify get_tls_mask. */
3a71aa26
AM		 5768 amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned);
5769 ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt);
5770 if (ppc64_sec->u.toc.symndx == NULL)
5771 return FALSE;
5772 amt = sec->size * sizeof (bfd_vma) / 8;
5773 ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt);
5774 if (ppc64_sec->u.toc.add == NULL)
411e1bfb 5775 return FALSE;
7c8fe5c4
AM		 5776 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
5777 ppc64_sec->sec_type = sec_toc;
411e1bfb
AM		 5778 }
5779 BFD_ASSERT (rel->r_offset % 8 == 0);
3a71aa26
AM		 5780 ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx;
5781 ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend;
951fd09b
AM		 5782
5783 /* Mark the second slot of a GD or LD entry.
5784 -1 to indicate GD and -2 to indicate LD. */
5785 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3a71aa26 5786 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1;
951fd09b 5787 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3a71aa26 5788 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 5789 goto dodyn;
5790
5791 case R_PPC64_TPREL16:
5792 case R_PPC64_TPREL16_LO:
5793 case R_PPC64_TPREL16_HI:
5794 case R_PPC64_TPREL16_HA:
5795 case R_PPC64_TPREL16_DS:
5796 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 5797 case R_PPC64_TPREL16_HIGH:
5798 case R_PPC64_TPREL16_HIGHA:
411e1bfb
AM		 5799 case R_PPC64_TPREL16_HIGHER:
5800 case R_PPC64_TPREL16_HIGHERA:
5801 case R_PPC64_TPREL16_HIGHEST:
5802 case R_PPC64_TPREL16_HIGHESTA:
0e1862bb 5803 if (bfd_link_pic (info))
411e1bfb 5804 {
afb93314 5805 info->flags |= DF_STATIC_TLS;
411e1bfb 5806 goto dodyn;
5d1634d7
AM		 5807 }
5808 break;
5809
e86ce104 5810 case R_PPC64_ADDR64:
1e2f5b6e 5811 if (opd_sym_map != NULL
1e2f5b6e 5812 && rel + 1 < rel_end
4ce794b7 5813 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 5814 {
8387904d
AM		 5815 if (h != NULL)
5816 {
5817 if (h->root.root.string[0] == '.'
5818 && h->root.root.string[1] != 0
b31867b6 5819 && lookup_fdh ((struct ppc_link_hash_entry *) h, htab))
8387904d
AM		 5820 ;
5821 else
5822 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5823 }
5824 else
5825 {
5826 asection *s;
87d72d41 5827 Elf_Internal_Sym *isym;
1e2f5b6e 5828
87d72d41
AM		 5829 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5830 abfd, r_symndx);
5831 if (isym == NULL)
8387904d 5832 return FALSE;
87d72d41
AM		 5833
5834 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5835 if (s != NULL && s != sec)
51aecdc5 5836 opd_sym_map[OPD_NDX (rel->r_offset)] = s;
8387904d 5837 }
1e2f5b6e 5838 }
e86ce104
AM		 5839 /* Fall through. */
5840
65f38f15
AM		 5841 case R_PPC64_ADDR16:
5842 case R_PPC64_ADDR16_DS:
5843 case R_PPC64_ADDR16_HA:
5844 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 5845 case R_PPC64_ADDR16_HIGH:
5846 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 5847 case R_PPC64_ADDR16_HIGHER:
5848 case R_PPC64_ADDR16_HIGHERA:
5849 case R_PPC64_ADDR16_HIGHEST:
5850 case R_PPC64_ADDR16_HIGHESTA:
5851 case R_PPC64_ADDR16_LO:
5852 case R_PPC64_ADDR16_LO_DS:
0e1862bb 5853 if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1
a345bc8d
AM		 5854 && rel->r_addend == 0)
5855 {
5856 /* We may need a .plt entry if this reloc refers to a
5857 function in a shared lib. */
5858 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5859 return FALSE;
5860 h->pointer_equality_needed = 1;
5861 }
5862 /* Fall through. */
5863
5864 case R_PPC64_REL30:
5865 case R_PPC64_REL32:
5866 case R_PPC64_REL64:
65f38f15 5867 case R_PPC64_ADDR32:
65f38f15
AM		 5868 case R_PPC64_UADDR16:
5869 case R_PPC64_UADDR32:
5870 case R_PPC64_UADDR64:
5bd4f169 5871 case R_PPC64_TOC:
0e1862bb 5872 if (h != NULL && !bfd_link_pic (info))
81848ca0 5873 /* We may need a copy reloc. */
f5385ebf 5874 h->non_got_ref = 1;
81848ca0 5875
41bd81ab 5876 /* Don't propagate .opd relocs. */
1e2f5b6e 5877 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 5878 break;
e86ce104 5879
65f38f15
AM		 5880 /* If we are creating a shared library, and this is a reloc
5881 against a global symbol, or a non PC relative reloc
5882 against a local symbol, then we need to copy the reloc
5883 into the shared library. However, if we are linking with
5884 -Bsymbolic, we do not need to copy a reloc against a
5885 global symbol which is defined in an object we are
5886 including in the link (i.e., DEF_REGULAR is set). At
5887 this point we have not seen all the input files, so it is
5888 possible that DEF_REGULAR is not set now but will be set
5889 later (it is never cleared). In case of a weak definition,
5890 DEF_REGULAR may be cleared later by a strong definition in
5891 a shared library. We account for that possibility below by
f4656909 5892 storing information in the dyn_relocs field of the hash
65f38f15
AM		 5893 table entry. A similar situation occurs when creating
5894 shared libraries and symbol visibility changes render the
5895 symbol local.
5896
5897 If on the other hand, we are creating an executable, we
5898 may need to keep relocations for symbols satisfied by a
5899 dynamic library if we manage to avoid copy relocs for the
5900 symbol. */
411e1bfb 5901 dodyn:
0e1862bb 5902 if ((bfd_link_pic (info)
1d483afe 5903 && (must_be_dyn_reloc (info, r_type)
65f38f15 5904 || (h != NULL
198f1157 5905 && (!SYMBOLIC_BIND (info, h)
65f38f15 5906 || h->root.type == bfd_link_hash_defweak
f5385ebf 5907 || !h->def_regular))))
f4656909 5908 || (ELIMINATE_COPY_RELOCS
0e1862bb 5909 && !bfd_link_pic (info)
65f38f15
AM		 5910 && h != NULL
5911 && (h->root.type == bfd_link_hash_defweak
25f23106 5912 || !h->def_regular))
0e1862bb 5913 || (!bfd_link_pic (info)
25f23106 5914 && ifunc != NULL))
5bd4f169 5915 {
65f38f15
AM		 5916 /* We must copy these reloc types into the output file.
5917 Create a reloc section in dynobj and make room for
5918 this reloc. */
5bd4f169
AM		 5919 if (sreloc == NULL)
5920 {
83bac4b0
NC		 5921 sreloc = _bfd_elf_make_dynamic_reloc_section
5922 (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
65f38f15 5923
5bd4f169 5924 if (sreloc == NULL)
83bac4b0 5925 return FALSE;
5bd4f169
AM		 5926 }
5927
65f38f15
AM		 5928 /* If this is a global symbol, we count the number of
5929 relocations we need for this symbol. */
5930 if (h != NULL)
5931 {
19e08130
AM		 5932 struct elf_dyn_relocs *p;
5933 struct elf_dyn_relocs **head;
5934
ec338859 5935 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
19e08130
AM		 5936 p = *head;
5937 if (p == NULL || p->sec != sec)
5938 {
5939 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5940 if (p == NULL)
5941 return FALSE;
5942 p->next = *head;
5943 *head = p;
5944 p->sec = sec;
5945 p->count = 0;
5946 p->pc_count = 0;
5947 }
5948 p->count += 1;
5949 if (!must_be_dyn_reloc (info, r_type))
5950 p->pc_count += 1;
65f38f15
AM		 5951 }
5952 else
5953 {
ec338859
AM		 5954 /* Track dynamic relocs needed for local syms too.
5955 We really need local syms available to do this
5956 easily. Oh well. */
19e08130
AM		 5957 struct ppc_dyn_relocs *p;
5958 struct ppc_dyn_relocs **head;
5959 bfd_boolean is_ifunc;
ec338859 5960 asection *s;
6edfbbad 5961 void *vpp;
87d72d41 5962 Elf_Internal_Sym *isym;
6edfbbad 5963
87d72d41
AM		 5964 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5965 abfd, r_symndx);
5966 if (isym == NULL)
b34976b6 5967 return FALSE;
ec338859 5968
87d72d41
AM		 5969 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5970 if (s == NULL)
5971 s = sec;
5972
6edfbbad 5973 vpp = &elf_section_data (s)->local_dynrel;
19e08130
AM		 5974 head = (struct ppc_dyn_relocs **) vpp;
5975 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
5976 p = *head;
5977 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
5978 p = p->next;
5979 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
5980 {
5981 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5982 if (p == NULL)
5983 return FALSE;
5984 p->next = *head;
5985 *head = p;
5986 p->sec = sec;
5987 p->ifunc = is_ifunc;
5988 p->count = 0;
5989 }
5990 p->count += 1;
ec338859 5991 }
65f38f15 5992 }
5bd4f169 5993 break;
65f38f15
AM		 5994
5995 default:
96e0dda4 5996 break;
5bd4f169
AM		 5997 }
5998 }
5999
b34976b6 6000 return TRUE;
5bd4f169
AM		 6001}
6002
ee67d69a
AM		 6003/* Merge backend specific data from an object file to the output
6004 object file when linking. */
6005
6006static bfd_boolean
50e03d47 6007ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
ee67d69a 6008{
50e03d47 6009 bfd *obfd = info->output_bfd;
ee67d69a
AM		 6010 unsigned long iflags, oflags;
6011
6012 if ((ibfd->flags & BFD_LINKER_CREATED) != 0)
6013 return TRUE;
6014
6015 if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd))
6016 return TRUE;
6017
50e03d47 6018 if (!_bfd_generic_verify_endian_match (ibfd, info))
ee67d69a
AM		 6019 return FALSE;
6020
6021 iflags = elf_elfheader (ibfd)->e_flags;
6022 oflags = elf_elfheader (obfd)->e_flags;
6023
f6c7c3e8 6024 if (iflags & ~EF_PPC64_ABI)
ee67d69a 6025 {
4eca0228 6026 _bfd_error_handler
695344c0 6027 /* xgettext:c-format */
ee67d69a
AM		 6028 (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags);
6029 bfd_set_error (bfd_error_bad_value);
6030 return FALSE;
6031 }
f6c7c3e8 6032 else if (iflags != oflags && iflags != 0)
ee67d69a 6033 {
4eca0228 6034 _bfd_error_handler
695344c0 6035 /* xgettext:c-format */
ee67d69a
AM		 6036 (_("%B: ABI version %ld is not compatible with ABI version %ld output"),
6037 ibfd, iflags, oflags);
6038 bfd_set_error (bfd_error_bad_value);
6039 return FALSE;
6040 }
6041
50e03d47 6042 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 6043
ee67d69a 6044 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 6045 _bfd_elf_merge_object_attributes (ibfd, info);
ee67d69a
AM		 6046
6047 return TRUE;
6048}
6049
6050static bfd_boolean
6051ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr)
6052{
6053 /* Print normal ELF private data. */
6054 _bfd_elf_print_private_bfd_data (abfd, ptr);
6055
6056 if (elf_elfheader (abfd)->e_flags != 0)
6057 {
6058 FILE *file = ptr;
6059
ee67d69a
AM		 6060 fprintf (file, _("private flags = 0x%lx:"),
6061 elf_elfheader (abfd)->e_flags);
6062
6063 if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0)
6064 fprintf (file, _(" [abiv%ld]"),
6065 elf_elfheader (abfd)->e_flags & EF_PPC64_ABI);
6066 fputc ('\n', file);
6067 }
6068
6069 return TRUE;
6070}
6071
8387904d 6072/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
b53dfeb2
AM		 6073 of the code entry point, and its section, which must be in the same
6074 object as OPD_SEC. Returns (bfd_vma) -1 on error. */
8387904d
AM		 6075
6076static bfd_vma
6077opd_entry_value (asection *opd_sec,
6078 bfd_vma offset,
6079 asection **code_sec,
aef36ac1
AM		 6080 bfd_vma *code_off,
6081 bfd_boolean in_code_sec)
8387904d
AM		 6082{
6083 bfd *opd_bfd = opd_sec->owner;
8860955f 6084 Elf_Internal_Rela *relocs;
8387904d 6085 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 6086 bfd_vma val;
8387904d 6087
9f296da3
AM		 6088 /* No relocs implies we are linking a --just-symbols object, or looking
6089 at a final linked executable with addr2line or somesuch. */
4b85d634
AM		 6090 if (opd_sec->reloc_count == 0)
6091 {
729eabd5 6092 bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents;
3b36f7e6 6093
729eabd5
AM		 6094 if (contents == NULL)
6095 {
6096 if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents))
6097 return (bfd_vma) -1;
6098 ppc64_elf_tdata (opd_bfd)->opd.contents = contents;
6099 }
ee1e4ede 6100
dbb3fbbb 6101 /* PR 17512: file: 64b9dfbb. */
451dfd38 6102 if (offset + 7 >= opd_sec->size || offset + 7 < offset)
dbb3fbbb
NC		 6103 return (bfd_vma) -1;
6104
729eabd5 6105 val = bfd_get_64 (opd_bfd, contents + offset);
aef36ac1
AM		 6106 if (code_sec != NULL)
6107 {
6108 asection *sec, *likely = NULL;
ee1e4ede 6109
aef36ac1 6110 if (in_code_sec)
4b85d634 6111 {
aef36ac1
AM		 6112 sec = *code_sec;
6113 if (sec->vma <= val
6114 && val < sec->vma + sec->size)
6115 likely = sec;
6116 else
6117 val = -1;
6118 }
6119 else
6120 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
6121 if (sec->vma <= val
6122 && (sec->flags & SEC_LOAD) != 0
6123 && (sec->flags & SEC_ALLOC) != 0)
6124 likely = sec;
6125 if (likely != NULL)
6126 {
6127 *code_sec = likely;
6128 if (code_off != NULL)
6129 *code_off = val - likely->vma;
4b85d634
AM		 6130 }
6131 }
aef36ac1 6132 return val;
4b85d634
AM		 6133 }
6134
0c8d6e5c 6135 BFD_ASSERT (is_ppc64_elf (opd_bfd));
0ffa91dd 6136
729eabd5 6137 relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs;
8860955f
AM		 6138 if (relocs == NULL)
6139 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
877a8638
NC		 6140 /* PR 17512: file: df8e1fd6. */
6141 if (relocs == NULL)
6142 return (bfd_vma) -1;
645ea6a9 6143
8387904d 6144 /* Go find the opd reloc at the sym address. */
8860955f 6145 lo = relocs;
8387904d 6146 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 6147 val = (bfd_vma) -1;
8387904d
AM		 6148 while (lo < hi)
6149 {
6150 look = lo + (hi - lo) / 2;
6151 if (look->r_offset < offset)
6152 lo = look + 1;
6153 else if (look->r_offset > offset)
6154 hi = look;
6155 else
6156 {
0ffa91dd
NC		 6157 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd);
6158
8387904d
AM		 6159 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
6160 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
6161 {
6162 unsigned long symndx = ELF64_R_SYM (look->r_info);
b53dfeb2 6163 asection *sec = NULL;
8387904d 6164
b53dfeb2
AM		 6165 if (symndx >= symtab_hdr->sh_info
6166 && elf_sym_hashes (opd_bfd) != NULL)
8387904d
AM		 6167 {
6168 struct elf_link_hash_entry **sym_hashes;
6169 struct elf_link_hash_entry *rh;
6170
6171 sym_hashes = elf_sym_hashes (opd_bfd);
6172 rh = sym_hashes[symndx - symtab_hdr->sh_info];
128205bb
AM		 6173 if (rh != NULL)
6174 {
6175 rh = elf_follow_link (rh);
bb854a36
AM		 6176 if (rh->root.type != bfd_link_hash_defined
6177 && rh->root.type != bfd_link_hash_defweak)
6178 break;
6179 if (rh->root.u.def.section->owner == opd_bfd)
b53dfeb2 6180 {
bb854a36
AM		 6181 val = rh->root.u.def.value;
6182 sec = rh->root.u.def.section;
b53dfeb2
AM		 6183 }
6184 }
6185 }
6186
6187 if (sec == NULL)
6188 {
6189 Elf_Internal_Sym *sym;
6190
6191 if (symndx < symtab_hdr->sh_info)
6192 {
6193 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
6194 if (sym == NULL)
6195 {
6196 size_t symcnt = symtab_hdr->sh_info;
6197 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6198 symcnt, 0,
6199 NULL, NULL, NULL);
6200 if (sym == NULL)
6201 break;
6202 symtab_hdr->contents = (bfd_byte *) sym;
6203 }
6204 sym += symndx;
128205bb
AM		 6205 }
6206 else
6207 {
b53dfeb2
AM		 6208 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6209 1, symndx,
6210 NULL, NULL, NULL);
128205bb
AM		 6211 if (sym == NULL)
6212 break;
128205bb 6213 }
b53dfeb2
AM		 6214 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
6215 if (sec == NULL)
6216 break;
6217 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
6218 val = sym->st_value;
8387904d 6219 }
b53dfeb2 6220
8387904d
AM		 6221 val += look->r_addend;
6222 if (code_off != NULL)
6223 *code_off = val;
6224 if (code_sec != NULL)
aef36ac1
AM		 6225 {
6226 if (in_code_sec && *code_sec != sec)
6227 return -1;
6228 else
6229 *code_sec = sec;
6230 }
b53dfeb2 6231 if (sec->output_section != NULL)
8387904d 6232 val += sec->output_section->vma + sec->output_offset;
8387904d
AM		 6233 }
6234 break;
6235 }
6236 }
645ea6a9 6237
645ea6a9 6238 return val;
8387904d
AM		 6239}
6240
aef36ac1
AM		 6241/* If the ELF symbol SYM might be a function in SEC, return the
6242 function size and set *CODE_OFF to the function's entry point,
6243 otherwise return zero. */
9f296da3 6244
aef36ac1
AM		 6245static bfd_size_type
6246ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec,
6247 bfd_vma *code_off)
9f296da3 6248{
aef36ac1
AM		 6249 bfd_size_type size;
6250
6251 if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT
6252 | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0)
6253 return 0;
6254
6255 size = 0;
6256 if (!(sym->flags & BSF_SYNTHETIC))
6257 size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
6258
6259 if (strcmp (sym->section->name, ".opd") == 0)
9f296da3 6260 {
b07bca4e
AM		 6261 struct _opd_sec_data *opd = get_opd_info (sym->section);
6262 bfd_vma symval = sym->value;
6263
6264 if (opd != NULL
6265 && opd->adjust != NULL
6266 && elf_section_data (sym->section)->relocs != NULL)
6267 {
6268 /* opd_entry_value will use cached relocs that have been
6269 adjusted, but with raw symbols. That means both local
6270 and global symbols need adjusting. */
6271 long adjust = opd->adjust[OPD_NDX (symval)];
6272 if (adjust == -1)
6273 return 0;
6274 symval += adjust;
6275 }
6276
6277 if (opd_entry_value (sym->section, symval,
aef36ac1
AM		 6278 &sec, code_off, TRUE) == (bfd_vma) -1)
6279 return 0;
6280 /* An old ABI binary with dot-syms has a size of 24 on the .opd
6281 symbol. This size has nothing to do with the code size of the
6282 function, which is what we're supposed to return, but the
6283 code size isn't available without looking up the dot-sym.
6284 However, doing that would be a waste of time particularly
6285 since elf_find_function will look at the dot-sym anyway.
6286 Now, elf_find_function will keep the largest size of any
6287 function sym found at the code address of interest, so return
6288 1 here to avoid it incorrectly caching a larger function size
6289 for a small function. This does mean we return the wrong
6290 size for a new-ABI function of size 24, but all that does is
6291 disable caching for such functions. */
6292 if (size == 24)
6293 size = 1;
9f296da3 6294 }
aef36ac1
AM		 6295 else
6296 {
6297 if (sym->section != sec)
6298 return 0;
6299 *code_off = sym->value;
6300 }
6301 if (size == 0)
6302 size = 1;
6303 return size;
9f296da3
AM		 6304}
6305
854b41e7
AM		 6306/* Return true if symbol is defined in a regular object file. */
6307
6308static bfd_boolean
6309is_static_defined (struct elf_link_hash_entry *h)
6310{
6311 return ((h->root.type == bfd_link_hash_defined
6312 || h->root.type == bfd_link_hash_defweak)
6313 && h->root.u.def.section != NULL
6314 && h->root.u.def.section->output_section != NULL);
6315}
6316
b31867b6
AM		 6317/* If FDH is a function descriptor symbol, return the associated code
6318 entry symbol if it is defined. Return NULL otherwise. */
6319
6320static struct ppc_link_hash_entry *
6321defined_code_entry (struct ppc_link_hash_entry *fdh)
6322{
6323 if (fdh->is_func_descriptor)
6324 {
6325 struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh);
6326 if (fh->elf.root.type == bfd_link_hash_defined
6327 || fh->elf.root.type == bfd_link_hash_defweak)
6328 return fh;
6329 }
6330 return NULL;
6331}
6332
6333/* If FH is a function code entry symbol, return the associated
6334 function descriptor symbol if it is defined. Return NULL otherwise. */
6335
6336static struct ppc_link_hash_entry *
6337defined_func_desc (struct ppc_link_hash_entry *fh)
6338{
6339 if (fh->oh != NULL
6340 && fh->oh->is_func_descriptor)
6341 {
6342 struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh);
6343 if (fdh->elf.root.type == bfd_link_hash_defined
6344 || fdh->elf.root.type == bfd_link_hash_defweak)
6345 return fdh;
6346 }
6347 return NULL;
6348}
6349
74f0fb50
AM		 6350/* Mark all our entry sym sections, both opd and code section. */
6351
6352static void
6353ppc64_elf_gc_keep (struct bfd_link_info *info)
6354{
6355 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6356 struct bfd_sym_chain *sym;
6357
4dfe6ac6
NC		 6358 if (htab == NULL)
6359 return;
6360
74f0fb50
AM		 6361 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
6362 {
b31867b6 6363 struct ppc_link_hash_entry *eh, *fh;
74f0fb50
AM		 6364 asection *sec;
6365
6366 eh = (struct ppc_link_hash_entry *)
b31867b6 6367 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE);
74f0fb50
AM		 6368 if (eh == NULL)
6369 continue;
6370 if (eh->elf.root.type != bfd_link_hash_defined
6371 && eh->elf.root.type != bfd_link_hash_defweak)
6372 continue;
6373
b31867b6
AM		 6374 fh = defined_code_entry (eh);
6375 if (fh != NULL)
74f0fb50 6376 {
b31867b6 6377 sec = fh->elf.root.u.def.section;
74f0fb50
AM		 6378 sec->flags |= SEC_KEEP;
6379 }
6380 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6381 && opd_entry_value (eh->elf.root.u.def.section,
6382 eh->elf.root.u.def.value,
aef36ac1 6383 &sec, NULL, FALSE) != (bfd_vma) -1)
74f0fb50
AM		 6384 sec->flags |= SEC_KEEP;
6385
6386 sec = eh->elf.root.u.def.section;
6387 sec->flags |= SEC_KEEP;
6388 }
6389}
6390
64d03ab5
AM		 6391/* Mark sections containing dynamically referenced symbols. When
6392 building shared libraries, we must assume that any visible symbol is
6393 referenced. */
6394
6395static bfd_boolean
6396ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
6397{
6398 struct bfd_link_info *info = (struct bfd_link_info *) inf;
6399 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
b31867b6 6400 struct ppc_link_hash_entry *fdh;
b407645f 6401 struct bfd_elf_dynamic_list *d = info->dynamic_list;
64d03ab5 6402
64d03ab5 6403 /* Dynamic linking info is on the func descriptor sym. */
b31867b6
AM		 6404 fdh = defined_func_desc (eh);
6405 if (fdh != NULL)
6406 eh = fdh;
64d03ab5
AM		 6407
6408 if ((eh->elf.root.type == bfd_link_hash_defined
6409 || eh->elf.root.type == bfd_link_hash_defweak)
6410 && (eh->elf.ref_dynamic
1c9177d9 6411 || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf))
64d03ab5 6412 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
4c58e0d8 6413 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN
0e1862bb 6414 && (!bfd_link_executable (info)
b407645f
AM		 6415 || info->export_dynamic
6416 || (eh->elf.dynamic
6417 && d != NULL
6418 && (*d->match) (&d->head, NULL, eh->elf.root.root.string)))
4c58e0d8
AM		 6419 && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL
6420 || !bfd_hide_sym_by_version (info->version_info,
6421 eh->elf.root.root.string)))))
64d03ab5
AM		 6422 {
6423 asection *code_sec;
b31867b6 6424 struct ppc_link_hash_entry *fh;
64d03ab5
AM		 6425
6426 eh->elf.root.u.def.section->flags |= SEC_KEEP;
6427
6428 /* Function descriptor syms cause the associated
6429 function code sym section to be marked. */
b31867b6
AM		 6430 fh = defined_code_entry (eh);
6431 if (fh != NULL)
6432 {
6433 code_sec = fh->elf.root.u.def.section;
6434 code_sec->flags |= SEC_KEEP;
6435 }
64d03ab5
AM		 6436 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6437 && opd_entry_value (eh->elf.root.u.def.section,
6438 eh->elf.root.u.def.value,
aef36ac1 6439 &code_sec, NULL, FALSE) != (bfd_vma) -1)
64d03ab5
AM		 6440 code_sec->flags |= SEC_KEEP;
6441 }
6442
6443 return TRUE;
6444}
6445
5bd4f169
AM		 6446/* Return the section that should be marked against GC for a given
6447 relocation. */
6448
6449static asection *
4ce794b7 6450ppc64_elf_gc_mark_hook (asection *sec,
fb34365b 6451 struct bfd_link_info *info,
4ce794b7
AM		 6452 Elf_Internal_Rela *rel,
6453 struct elf_link_hash_entry *h,
6454 Elf_Internal_Sym *sym)
5bd4f169 6455{
ccfa59ea
AM		 6456 asection *rsec;
6457
ccfa59ea
AM		 6458 /* Syms return NULL if we're marking .opd, so we avoid marking all
6459 function sections, as all functions are referenced in .opd. */
6460 rsec = NULL;
6461 if (get_opd_info (sec) != NULL)
6462 return rsec;
1e2f5b6e 6463
5bd4f169
AM		 6464 if (h != NULL)
6465 {
04c9666a 6466 enum elf_ppc64_reloc_type r_type;
b31867b6 6467 struct ppc_link_hash_entry *eh, *fh, *fdh;
a33d1f77 6468
4ce794b7 6469 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 6470 switch (r_type)
5bd4f169
AM		 6471 {
6472 case R_PPC64_GNU_VTINHERIT:
6473 case R_PPC64_GNU_VTENTRY:
6474 break;
6475
6476 default:
6477 switch (h->root.type)
6478 {
6479 case bfd_link_hash_defined:
6480 case bfd_link_hash_defweak:
ccfa59ea 6481 eh = (struct ppc_link_hash_entry *) h;
b31867b6
AM		 6482 fdh = defined_func_desc (eh);
6483 if (fdh != NULL)
6484 eh = fdh;
1e2f5b6e
AM		 6485
6486 /* Function descriptor syms cause the associated
6487 function code sym section to be marked. */
b31867b6
AM		 6488 fh = defined_code_entry (eh);
6489 if (fh != NULL)
ccfa59ea
AM		 6490 {
6491 /* They also mark their opd section. */
74f0fb50 6492 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 6493
b31867b6 6494 rsec = fh->elf.root.u.def.section;
ccfa59ea 6495 }
8387904d
AM		 6496 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6497 && opd_entry_value (eh->elf.root.u.def.section,
6498 eh->elf.root.u.def.value,
aef36ac1 6499 &rsec, NULL, FALSE) != (bfd_vma) -1)
74f0fb50 6500 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 6501 else
1e2f5b6e
AM		 6502 rsec = h->root.u.def.section;
6503 break;
5bd4f169
AM		 6504
6505 case bfd_link_hash_common:
1e2f5b6e
AM		 6506 rsec = h->root.u.c.p->section;
6507 break;
5bd4f169
AM		 6508
6509 default:
fb34365b 6510 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5bd4f169
AM		 6511 }
6512 }
6513 }
6514 else
6515 {
74f0fb50 6516 struct _opd_sec_data *opd;
1e2f5b6e
AM		 6517
6518 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
74f0fb50
AM		 6519 opd = get_opd_info (rsec);
6520 if (opd != NULL && opd->func_sec != NULL)
ccfa59ea 6521 {
74f0fb50 6522 rsec->gc_mark = 1;
ccfa59ea 6523
51aecdc5 6524 rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)];
ccfa59ea 6525 }
5bd4f169
AM		 6526 }
6527
1e2f5b6e 6528 return rsec;
5bd4f169
AM		 6529}
6530
65f38f15
AM		 6531/* Update the .got, .plt. and dynamic reloc reference counts for the
6532 section being removed. */
5bd4f169 6533
b34976b6 6534static bfd_boolean
4ce794b7
AM		 6535ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
6536 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 6537{
411e1bfb 6538 struct ppc_link_hash_table *htab;
5bd4f169
AM		 6539 Elf_Internal_Shdr *symtab_hdr;
6540 struct elf_link_hash_entry **sym_hashes;
411e1bfb 6541 struct got_entry **local_got_ents;
5bd4f169 6542 const Elf_Internal_Rela *rel, *relend;
5bd4f169 6543
0e1862bb 6544 if (bfd_link_relocatable (info))
7dda2462
TG		 6545 return TRUE;
6546
680a3378
AM		 6547 if ((sec->flags & SEC_ALLOC) == 0)
6548 return TRUE;
6549
ec338859
AM		 6550 elf_section_data (sec)->local_dynrel = NULL;
6551
411e1bfb 6552 htab = ppc_hash_table (info);
4dfe6ac6
NC		 6553 if (htab == NULL)
6554 return FALSE;
6555
0ffa91dd 6556 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 6557 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 6558 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 6559
6560 relend = relocs + sec->reloc_count;
6561 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 6562 {
6563 unsigned long r_symndx;
04c9666a 6564 enum elf_ppc64_reloc_type r_type;
58ac9f71 6565 struct elf_link_hash_entry *h = NULL;
cbf95972 6566 struct plt_entry **plt_list;
f961d9dd 6567 unsigned char tls_type = 0;
5bd4f169 6568
a33d1f77 6569 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 6570 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 6571 if (r_symndx >= symtab_hdr->sh_info)
6572 {
6573 struct ppc_link_hash_entry *eh;
6061a67d
AM		 6574 struct elf_dyn_relocs **pp;
6575 struct elf_dyn_relocs *p;
58ac9f71
AM		 6576
6577 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 6578 h = elf_follow_link (h);
58ac9f71
AM		 6579 eh = (struct ppc_link_hash_entry *) h;
6580
6581 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
6582 if (p->sec == sec)
6583 {
6584 /* Everything must go for SEC. */
6585 *pp = p->next;
6586 break;
6587 }
6588 }
6589
a33d1f77
AM		 6590 switch (r_type)
6591 {
411e1bfb
AM		 6592 case R_PPC64_GOT_TLSLD16:
6593 case R_PPC64_GOT_TLSLD16_LO:
6594 case R_PPC64_GOT_TLSLD16_HI:
6595 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 6596 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 6597 goto dogot;
6598
6599 case R_PPC64_GOT_TLSGD16:
6600 case R_PPC64_GOT_TLSGD16_LO:
6601 case R_PPC64_GOT_TLSGD16_HI:
6602 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 6603 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 6604 goto dogot;
6605
6606 case R_PPC64_GOT_TPREL16_DS:
6607 case R_PPC64_GOT_TPREL16_LO_DS:
6608 case R_PPC64_GOT_TPREL16_HI:
6609 case R_PPC64_GOT_TPREL16_HA:
6610 tls_type = TLS_TLS | TLS_TPREL;
6611 goto dogot;
6612
6613 case R_PPC64_GOT_DTPREL16_DS:
6614 case R_PPC64_GOT_DTPREL16_LO_DS:
6615 case R_PPC64_GOT_DTPREL16_HI:
6616 case R_PPC64_GOT_DTPREL16_HA:
6617 tls_type = TLS_TLS | TLS_DTPREL;
6618 goto dogot;
6619
a33d1f77
AM		 6620 case R_PPC64_GOT16:
6621 case R_PPC64_GOT16_DS:
6622 case R_PPC64_GOT16_HA:
6623 case R_PPC64_GOT16_HI:
6624 case R_PPC64_GOT16_LO:
6625 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 6626 dogot:
6627 {
6628 struct got_entry *ent;
6629
58ac9f71
AM		 6630 if (h != NULL)
6631 ent = h->got.glist;
411e1bfb
AM		 6632 else
6633 ent = local_got_ents[r_symndx];
6634
6635 for (; ent != NULL; ent = ent->next)
6636 if (ent->addend == rel->r_addend
e717da7e 6637 && ent->owner == abfd
411e1bfb
AM		 6638 && ent->tls_type == tls_type)
6639 break;
6640 if (ent == NULL)
6641 abort ();
6642 if (ent->got.refcount > 0)
6643 ent->got.refcount -= 1;
6644 }
a33d1f77 6645 break;
65f38f15 6646
a33d1f77
AM		 6647 case R_PPC64_PLT16_HA:
6648 case R_PPC64_PLT16_HI:
6649 case R_PPC64_PLT16_LO:
6650 case R_PPC64_PLT32:
6651 case R_PPC64_PLT64:
721956f4
AM		 6652 case R_PPC64_REL14:
6653 case R_PPC64_REL14_BRNTAKEN:
6654 case R_PPC64_REL14_BRTAKEN:
5d1634d7 6655 case R_PPC64_REL24:
cbf95972 6656 plt_list = NULL;
58ac9f71 6657 if (h != NULL)
cbf95972
AM		 6658 plt_list = &h->plt.plist;
6659 else if (local_got_ents != NULL)
6660 {
6661 struct plt_entry **local_plt = (struct plt_entry **)
6662 (local_got_ents + symtab_hdr->sh_info);
6663 unsigned char *local_got_tls_masks = (unsigned char *)
6664 (local_plt + symtab_hdr->sh_info);
6665 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
6666 plt_list = local_plt + r_symndx;
6667 }
6668 if (plt_list)
5d1634d7 6669 {
411e1bfb
AM		 6670 struct plt_entry *ent;
6671
cbf95972 6672 for (ent = *plt_list; ent != NULL; ent = ent->next)
411e1bfb
AM		 6673 if (ent->addend == rel->r_addend)
6674 break;
7c6c1722 6675 if (ent != NULL && ent->plt.refcount > 0)
411e1bfb 6676 ent->plt.refcount -= 1;
5d1634d7 6677 }
e86ce104 6678 break;
5d1634d7 6679
a33d1f77
AM		 6680 default:
6681 break;
6682 }
6683 }
b34976b6 6684 return TRUE;
5bd4f169
AM		 6685}
6686
deb0e272
AM		 6687/* The maximum size of .sfpr. */
6688#define SFPR_MAX (218*4)
6689
6690struct sfpr_def_parms
6691{
699733f6
AM		 6692 const char name[12];
6693 unsigned char lo, hi;
deb0e272
AM		 6694 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
6695 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
6696};
6697
a4b6fadd
AM		 6698/* Auto-generate _save*, _rest* functions in .sfpr.
6699 If STUB_SEC is non-null, define alias symbols in STUB_SEC
6700 instead. */
deb0e272 6701
4dfe6ac6 6702static bfd_boolean
a4b6fadd
AM		 6703sfpr_define (struct bfd_link_info *info,
6704 const struct sfpr_def_parms *parm,
6705 asection *stub_sec)
deb0e272
AM		 6706{
6707 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6708 unsigned int i;
6709 size_t len = strlen (parm->name);
6710 bfd_boolean writing = FALSE;
699733f6 6711 char sym[16];
deb0e272 6712
4dfe6ac6
NC		 6713 if (htab == NULL)
6714 return FALSE;
6715
deb0e272
AM		 6716 memcpy (sym, parm->name, len);
6717 sym[len + 2] = 0;
6718
6719 for (i = parm->lo; i <= parm->hi; i++)
6720 {
a4b6fadd 6721 struct ppc_link_hash_entry *h;
deb0e272
AM		 6722
6723 sym[len + 0] = i / 10 + '0';
6724 sym[len + 1] = i % 10 + '0';
a4b6fadd 6725 h = (struct ppc_link_hash_entry *)
b32547cd 6726 elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE);
a4b6fadd 6727 if (stub_sec != NULL)
deb0e272 6728 {
a4b6fadd
AM		 6729 if (h != NULL
6730 && h->elf.root.type == bfd_link_hash_defined
6731 && h->elf.root.u.def.section == htab->sfpr)
6732 {
6733 struct elf_link_hash_entry *s;
6734 char buf[32];
6735 sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym);
6736 s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE);
6737 if (s == NULL)
6738 return FALSE;
6739 if (s->root.type == bfd_link_hash_new
6740 || (s->root.type = bfd_link_hash_defined
6741 && s->root.u.def.section == stub_sec))
6742 {
6743 s->root.type = bfd_link_hash_defined;
6744 s->root.u.def.section = stub_sec;
6745 s->root.u.def.value = (stub_sec->size
6746 + h->elf.root.u.def.value);
6747 s->ref_regular = 1;
6748 s->def_regular = 1;
6749 s->ref_regular_nonweak = 1;
6750 s->forced_local = 1;
6751 s->non_elf = 0;
6752 s->root.linker_def = 1;
6753 }
6754 }
6755 continue;
6756 }
6757 if (h != NULL)
6758 {
6759 h->save_res = 1;
6760 if (!h->elf.def_regular)
deb0e272 6761 {
a4b6fadd
AM		 6762 h->elf.root.type = bfd_link_hash_defined;
6763 h->elf.root.u.def.section = htab->sfpr;
6764 h->elf.root.u.def.value = htab->sfpr->size;
6765 h->elf.type = STT_FUNC;
6766 h->elf.def_regular = 1;
b32547cd 6767 h->elf.non_elf = 0;
a4b6fadd
AM		 6768 _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE);
6769 writing = TRUE;
deb0e272 6770 if (htab->sfpr->contents == NULL)
a4b6fadd
AM		 6771 {
6772 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
6773 if (htab->sfpr->contents == NULL)
6774 return FALSE;
6775 }
deb0e272
AM		 6776 }
6777 }
6778 if (writing)
6779 {
6780 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
6781 if (i != parm->hi)
6782 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
6783 else
6784 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
6785 htab->sfpr->size = p - htab->sfpr->contents;
6786 }
6787 }
6788
6789 return TRUE;
6790}
6791
6792static bfd_byte *
6793savegpr0 (bfd *abfd, bfd_byte *p, int r)
6794{
6795 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6796 return p + 4;
6797}
6798
6799static bfd_byte *
6800savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
6801{
6802 p = savegpr0 (abfd, p, r);
a078d95a 6803 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6804 p = p + 4;
6805 bfd_put_32 (abfd, BLR, p);
6806 return p + 4;
6807}
6808
6809static bfd_byte *
6810restgpr0 (bfd *abfd, bfd_byte *p, int r)
6811{
6812 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6813 return p + 4;
6814}
6815
6816static bfd_byte *
6817restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
6818{
a078d95a 6819 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6820 p = p + 4;
6821 p = restgpr0 (abfd, p, r);
6822 bfd_put_32 (abfd, MTLR_R0, p);
6823 p = p + 4;
6824 if (r == 29)
6825 {
6826 p = restgpr0 (abfd, p, 30);
6827 p = restgpr0 (abfd, p, 31);
6828 }
6829 bfd_put_32 (abfd, BLR, p);
6830 return p + 4;
6831}
6832
6833static bfd_byte *
6834savegpr1 (bfd *abfd, bfd_byte *p, int r)
6835{
6836 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6837 return p + 4;
6838}
6839
6840static bfd_byte *
6841savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
6842{
6843 p = savegpr1 (abfd, p, r);
6844 bfd_put_32 (abfd, BLR, p);
6845 return p + 4;
6846}
6847
6848static bfd_byte *
6849restgpr1 (bfd *abfd, bfd_byte *p, int r)
6850{
6851 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6852 return p + 4;
6853}
6854
6855static bfd_byte *
6856restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
6857{
6858 p = restgpr1 (abfd, p, r);
6859 bfd_put_32 (abfd, BLR, p);
6860 return p + 4;
6861}
6862
6863static bfd_byte *
6864savefpr (bfd *abfd, bfd_byte *p, int r)
6865{
6866 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6867 return p + 4;
6868}
6869
6870static bfd_byte *
6871savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
6872{
6873 p = savefpr (abfd, p, r);
a078d95a 6874 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6875 p = p + 4;
6876 bfd_put_32 (abfd, BLR, p);
6877 return p + 4;
6878}
6879
6880static bfd_byte *
6881restfpr (bfd *abfd, bfd_byte *p, int r)
6882{
6883 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6884 return p + 4;
6885}
6886
6887static bfd_byte *
6888restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
6889{
a078d95a 6890 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6891 p = p + 4;
6892 p = restfpr (abfd, p, r);
6893 bfd_put_32 (abfd, MTLR_R0, p);
6894 p = p + 4;
6895 if (r == 29)
6896 {
6897 p = restfpr (abfd, p, 30);
6898 p = restfpr (abfd, p, 31);
6899 }
6900 bfd_put_32 (abfd, BLR, p);
6901 return p + 4;
6902}
6903
6904static bfd_byte *
6905savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
6906{
6907 p = savefpr (abfd, p, r);
6908 bfd_put_32 (abfd, BLR, p);
6909 return p + 4;
6910}
6911
6912static bfd_byte *
6913restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
6914{
6915 p = restfpr (abfd, p, r);
6916 bfd_put_32 (abfd, BLR, p);
6917 return p + 4;
6918}
6919
6920static bfd_byte *
6921savevr (bfd *abfd, bfd_byte *p, int r)
6922{
6923 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6924 p = p + 4;
6925 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
6926 return p + 4;
6927}
6928
6929static bfd_byte *
6930savevr_tail (bfd *abfd, bfd_byte *p, int r)
6931{
6932 p = savevr (abfd, p, r);
6933 bfd_put_32 (abfd, BLR, p);
6934 return p + 4;
6935}
6936
6937static bfd_byte *
6938restvr (bfd *abfd, bfd_byte *p, int r)
6939{
6940 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6941 p = p + 4;
6942 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
6943 return p + 4;
6944}
6945
6946static bfd_byte *
6947restvr_tail (bfd *abfd, bfd_byte *p, int r)
6948{
6949 p = restvr (abfd, p, r);
6950 bfd_put_32 (abfd, BLR, p);
6951 return p + 4;
6952}
6953
e86ce104
AM		 6954/* Called via elf_link_hash_traverse to transfer dynamic linking
6955 information on function code symbol entries to their corresponding
6956 function descriptor symbol entries. */
deb0e272 6957
b34976b6 6958static bfd_boolean
4ce794b7 6959func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 6960{
e86ce104 6961 struct bfd_link_info *info;
65f38f15 6962 struct ppc_link_hash_table *htab;
411e1bfb 6963 struct plt_entry *ent;
50bc7936
AM		 6964 struct ppc_link_hash_entry *fh;
6965 struct ppc_link_hash_entry *fdh;
6966 bfd_boolean force_local;
5bd4f169 6967
50bc7936
AM		 6968 fh = (struct ppc_link_hash_entry *) h;
6969 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 6970 return TRUE;
e86ce104 6971
4ce794b7 6972 info = inf;
65f38f15 6973 htab = ppc_hash_table (info);
4dfe6ac6
NC		 6974 if (htab == NULL)
6975 return FALSE;
5bd4f169 6976
c09bdfe5
AM		 6977 /* Resolve undefined references to dot-symbols as the value
6978 in the function descriptor, if we have one in a regular object.
6979 This is to satisfy cases like ".quad .foo". Calls to functions
6980 in dynamic objects are handled elsewhere. */
6981 if (fh->elf.root.type == bfd_link_hash_undefweak
6982 && fh->was_undefined
b31867b6
AM		 6983 && (fdh = defined_func_desc (fh)) != NULL
6984 && get_opd_info (fdh->elf.root.u.def.section) != NULL
6985 && opd_entry_value (fdh->elf.root.u.def.section,
6986 fdh->elf.root.u.def.value,
c09bdfe5 6987 &fh->elf.root.u.def.section,
aef36ac1 6988 &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1)
c09bdfe5 6989 {
b31867b6 6990 fh->elf.root.type = fdh->elf.root.type;
f5385ebf 6991 fh->elf.forced_local = 1;
b31867b6
AM		 6992 fh->elf.def_regular = fdh->elf.def_regular;
6993 fh->elf.def_dynamic = fdh->elf.def_dynamic;
c09bdfe5
AM		 6994 }
6995
e86ce104
AM		 6996 /* If this is a function code symbol, transfer dynamic linking
6997 information to the function descriptor symbol. */
50bc7936 6998 if (!fh->is_func)
b34976b6 6999 return TRUE;
e86ce104 7000
50bc7936 7001 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 7002 if (ent->plt.refcount > 0)
7003 break;
50bc7936
AM		 7004 if (ent == NULL
7005 || fh->elf.root.root.string[0] != '.'
7006 || fh->elf.root.root.string[1] == '\0')
7007 return TRUE;
5bd4f169 7008
50bc7936
AM		 7009 /* Find the corresponding function descriptor symbol. Create it
7010 as undefined if necessary. */
5bd4f169 7011
b31867b6 7012 fdh = lookup_fdh (fh, htab);
50bc7936 7013 if (fdh == NULL
0e1862bb 7014 && !bfd_link_executable (info)
50bc7936
AM		 7015 && (fh->elf.root.type == bfd_link_hash_undefined
7016 || fh->elf.root.type == bfd_link_hash_undefweak))
7017 {
908b32fc 7018 fdh = make_fdh (info, fh);
bb700d78
AM		 7019 if (fdh == NULL)
7020 return FALSE;
50bc7936 7021 }
648cca2c 7022
908b32fc 7023 /* Fake function descriptors are made undefweak. If the function
433817dd
AM		 7024 code symbol is strong undefined, make the fake sym the same.
7025 If the function code symbol is defined, then force the fake
7026 descriptor local; We can't support overriding of symbols in a
7027 shared library on a fake descriptor. */
908b32fc
AM		 7028
7029 if (fdh != NULL
7030 && fdh->fake
433817dd 7031 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 7032 {
433817dd
AM		 7033 if (fh->elf.root.type == bfd_link_hash_undefined)
7034 {
7035 fdh->elf.root.type = bfd_link_hash_undefined;
7036 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
7037 }
7038 else if (fh->elf.root.type == bfd_link_hash_defined
7039 || fh->elf.root.type == bfd_link_hash_defweak)
7040 {
7041 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
7042 }
908b32fc
AM		 7043 }
7044
50bc7936 7045 if (fdh != NULL
f5385ebf 7046 && !fdh->elf.forced_local
0e1862bb 7047 && (!bfd_link_executable (info)
f5385ebf
AM		 7048 || fdh->elf.def_dynamic
7049 || fdh->elf.ref_dynamic
50bc7936
AM		 7050 || (fdh->elf.root.type == bfd_link_hash_undefweak
7051 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
7052 {
7053 if (fdh->elf.dynindx == -1)
c152c796 7054 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 7055 return FALSE;
f5385ebf
AM		 7056 fdh->elf.ref_regular |= fh->elf.ref_regular;
7057 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
7058 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
7059 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 7060 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 7061 {
40d16e0b 7062 move_plt_plist (fh, fdh);
f5385ebf 7063 fdh->elf.needs_plt = 1;
e86ce104 7064 }
50bc7936 7065 fdh->is_func_descriptor = 1;
34814b9f
AM		 7066 fdh->oh = fh;
7067 fh->oh = fdh;
e86ce104
AM		 7068 }
7069
50bc7936
AM		 7070 /* Now that the info is on the function descriptor, clear the
7071 function code sym info. Any function code syms for which we
7072 don't have a definition in a regular file, we force local.
7073 This prevents a shared library from exporting syms that have
7074 been imported from another library. Function code syms that
7075 are really in the library we must leave global to prevent the
7076 linker dragging in a definition from a static library. */
93f3fa99
AM		 7077 force_local = (!fh->elf.def_regular
7078 || fdh == NULL
7079 || !fdh->elf.def_regular
7080 || fdh->elf.forced_local);
50bc7936
AM		 7081 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
7082
b34976b6 7083 return TRUE;
e86ce104 7084}
40b8271b 7085
a4b6fadd
AM		 7086static const struct sfpr_def_parms save_res_funcs[] =
7087 {
7088 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
7089 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
7090 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
7091 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
7092 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
7093 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
7094 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
7095 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
7096 { "._savef", 14, 31, savefpr, savefpr1_tail },
7097 { "._restf", 14, 31, restfpr, restfpr1_tail },
7098 { "_savevr_", 20, 31, savevr, savevr_tail },
7099 { "_restvr_", 20, 31, restvr, restvr_tail }
7100 };
7101
e86ce104 7102/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 7103 this hook to a) provide some gcc support functions, and b) transfer
7104 dynamic linking information gathered so far on function code symbol
7105 entries, to their corresponding function descriptor symbol entries. */
deb0e272 7106
b34976b6 7107static bfd_boolean
4ce794b7
AM		 7108ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
7109 struct bfd_link_info *info)
e86ce104
AM		 7110{
7111 struct ppc_link_hash_table *htab;
7112
7113 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7114 if (htab == NULL)
7115 return FALSE;
7116
b32547cd
AM		 7117 /* Provide any missing _save* and _rest* functions. */
7118 if (htab->sfpr != NULL)
7119 {
7120 unsigned int i;
7121
7122 htab->sfpr->size = 0;
7123 for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++)
7124 if (!sfpr_define (info, &save_res_funcs[i], NULL))
7125 return FALSE;
7126 if (htab->sfpr->size == 0)
7127 htab->sfpr->flags |= SEC_EXCLUDE;
7128 }
7129
7130 if (bfd_link_relocatable (info))
7131 return TRUE;
7132
7133 if (htab->elf.hgot != NULL)
dba6fa9b
AM		 7134 {
7135 _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE);
7136 /* Make .TOC. defined so as to prevent it being made dynamic.
7137 The wrong value here is fixed later in ppc64_elf_set_toc. */
43417696
AM		 7138 if (!htab->elf.hgot->def_regular
7139 || htab->elf.hgot->root.type != bfd_link_hash_defined)
7140 {
7141 htab->elf.hgot->root.type = bfd_link_hash_defined;
7142 htab->elf.hgot->root.u.def.value = 0;
7143 htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr;
7144 htab->elf.hgot->def_regular = 1;
7145 htab->elf.hgot->root.linker_def = 1;
7146 }
dba6fa9b 7147 htab->elf.hgot->type = STT_OBJECT;
dba6fa9b
AM		 7148 htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1))
7149 | STV_HIDDEN);
7150 }
c66bb0ee 7151
4ce794b7 7152 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 7153
b34976b6 7154 return TRUE;
e86ce104
AM		 7155}
7156
8a2058b5
AM		 7157/* Return true if we have dynamic relocs against H that apply to
7158 read-only sections. */
a345bc8d
AM		 7159
7160static bfd_boolean
7161readonly_dynrelocs (struct elf_link_hash_entry *h)
7162{
7163 struct ppc_link_hash_entry *eh;
7164 struct elf_dyn_relocs *p;
7165
7166 eh = (struct ppc_link_hash_entry *) h;
7167 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7168 {
7169 asection *s = p->sec->output_section;
7170
7171 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7172 return TRUE;
7173 }
7174 return FALSE;
7175}
7176
d311bc8b
AM		 7177/* Return true if we have dynamic relocs against H or any of its weak
7178 aliases, that apply to read-only sections. */
7179
7180static bfd_boolean
7181alias_readonly_dynrelocs (struct elf_link_hash_entry *h)
7182{
7183 struct ppc_link_hash_entry *eh;
7184
7185 eh = (struct ppc_link_hash_entry *) h;
7186 do
7187 {
7188 if (readonly_dynrelocs (&eh->elf))
7189 return TRUE;
7190 eh = eh->weakref;
7191 } while (eh != NULL && &eh->elf != h);
7192
7193 return FALSE;
7194}
8a2058b5 7195
8a9e8e72
AM		 7196/* Return whether EH has pc-relative dynamic relocs. */
7197
7198static bfd_boolean
7199pc_dynrelocs (struct ppc_link_hash_entry *eh)
7200{
7201 struct elf_dyn_relocs *p;
7202
7203 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7204 if (p->pc_count != 0)
7205 return TRUE;
7206 return FALSE;
7207}
7208
8a2058b5
AM		 7209/* Return true if a global entry stub will be created for H. Valid
7210 for ELFv2 before plt entries have been allocated. */
7211
7212static bfd_boolean
7213global_entry_stub (struct elf_link_hash_entry *h)
7214{
7215 struct plt_entry *pent;
7216
7217 if (!h->pointer_equality_needed
7218 || h->def_regular)
7219 return FALSE;
7220
7221 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7222 if (pent->plt.refcount > 0
7223 && pent->addend == 0)
7224 return TRUE;
7225
7226 return FALSE;
7227}
7228
e86ce104
AM		 7229/* Adjust a symbol defined by a dynamic object and referenced by a
7230 regular object. The current definition is in some section of the
7231 dynamic object, but we're not including those sections. We have to
7232 change the definition to something the rest of the link can
7233 understand. */
7234
b34976b6 7235static bfd_boolean
4ce794b7
AM		 7236ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
7237 struct elf_link_hash_entry *h)
e86ce104
AM		 7238{
7239 struct ppc_link_hash_table *htab;
e86ce104 7240 asection *s;
e86ce104
AM		 7241
7242 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7243 if (htab == NULL)
7244 return FALSE;
e86ce104
AM		 7245
7246 /* Deal with function syms. */
7247 if (h->type == STT_FUNC
e054468f 7248 || h->type == STT_GNU_IFUNC
f5385ebf 7249 || h->needs_plt)
e86ce104
AM		 7250 {
7251 /* Clear procedure linkage table information for any symbol that
7252 won't need a .plt entry. */
411e1bfb
AM		 7253 struct plt_entry *ent;
7254 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7255 if (ent->plt.refcount > 0)
7256 break;
8387904d 7257 if (ent == NULL
e054468f
AM		 7258 || (h->type != STT_GNU_IFUNC
7259 && (SYMBOL_CALLS_LOCAL (info, h)
7260 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
a4b6fadd
AM		 7261 && h->root.type == bfd_link_hash_undefweak)))
7262 || ((struct ppc_link_hash_entry *) h)->save_res)
40b8271b 7263 {
411e1bfb 7264 h->plt.plist = NULL;
f5385ebf 7265 h->needs_plt = 0;
d1eca1e4 7266 h->pointer_equality_needed = 0;
40b8271b 7267 }
8a2058b5 7268 else if (abiversion (info->output_bfd) >= 2)
a345bc8d 7269 {
d1eca1e4
AM		 7270 /* Taking a function's address in a read/write section
7271 doesn't require us to define the function symbol in the
7272 executable on a global entry stub. A dynamic reloc can
8a2058b5
AM		 7273 be used instead. The reason we prefer a few more dynamic
7274 relocs is that calling via a global entry stub costs a
7275 few more instructions, and pointer_equality_needed causes
7276 extra work in ld.so when resolving these symbols. */
7277 if (global_entry_stub (h)
d311bc8b 7278 && !alias_readonly_dynrelocs (h))
d1eca1e4
AM		 7279 {
7280 h->pointer_equality_needed = 0;
8a2058b5
AM		 7281 /* After adjust_dynamic_symbol, non_got_ref set in
7282 the non-pic case means that dyn_relocs for this
7283 symbol should be discarded. */
d1eca1e4
AM		 7284 h->non_got_ref = 0;
7285 }
7286
a345bc8d
AM		 7287 /* If making a plt entry, then we don't need copy relocs. */
7288 return TRUE;
7289 }
5bd4f169 7290 }
bbd7ec4a 7291 else
411e1bfb 7292 h->plt.plist = NULL;
5bd4f169
AM		 7293
7294 /* If this is a weak symbol, and there is a real definition, the
7295 processor independent code will have arranged for us to see the
7296 real definition first, and we can just use the same value. */
f6e332e6 7297 if (h->u.weakdef != NULL)
5bd4f169 7298 {
f6e332e6
AM		 7299 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
7300 || h->u.weakdef->root.type == bfd_link_hash_defweak);
7301 h->root.u.def.section = h->u.weakdef->root.u.def.section;
7302 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 7303 if (ELIMINATE_COPY_RELOCS)
f6e332e6 7304 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 7305 return TRUE;
5bd4f169
AM		 7306 }
7307
5bd4f169
AM		 7308 /* If we are creating a shared library, we must presume that the
7309 only references to the symbol are via the global offset table.
7310 For such cases we need not do anything here; the relocations will
7311 be handled correctly by relocate_section. */
0e1862bb 7312 if (bfd_link_pic (info))
b34976b6 7313 return TRUE;
5bd4f169 7314
65f38f15
AM		 7315 /* If there are no references to this symbol that do not use the
7316 GOT, we don't need to generate a copy reloc. */
f5385ebf 7317 if (!h->non_got_ref)
b34976b6 7318 return TRUE;
65f38f15 7319
b186458a 7320 /* Don't generate a copy reloc for symbols defined in the executable. */
d93d1c80 7321 if (!h->def_dynamic || !h->ref_regular || h->def_regular
b186458a 7322
d93d1c80
AM		 7323 /* If -z nocopyreloc was given, don't generate them either. */
7324 || info->nocopyreloc
a127494f 7325
d93d1c80
AM		 7326 /* If we didn't find any dynamic relocs in read-only sections, then
7327 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
d311bc8b 7328 || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h))
65f38f15 7329
d93d1c80
AM		 7330 /* Protected variables do not work with .dynbss. The copy in
7331 .dynbss won't be used by the shared library with the protected
7332 definition for the variable. Text relocations are preferable
7333 to an incorrect program. */
7334 || h->protected_def)
a127494f
AM		 7335 {
7336 h->non_got_ref = 0;
7337 return TRUE;
7338 }
7339
5d35169e 7340 if (h->plt.plist != NULL)
97b639ba
AM		 7341 {
7342 /* We should never get here, but unfortunately there are versions
7343 of gcc out there that improperly (for this ABI) put initialized
7344 function pointers, vtable refs and suchlike in read-only
7345 sections. Allow them to proceed, but warn that this might
7346 break at runtime. */
25f53a85 7347 info->callbacks->einfo
bc30df16 7348 (_("%P: copy reloc against `%T' requires lazy plt linking; "
25f53a85 7349 "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"),
97b639ba
AM		 7350 h->root.root.string);
7351 }
5d35169e
AM		 7352
7353 /* This is a reference to a symbol defined by a dynamic object which
7354 is not a function. */
7355
5bd4f169
AM		 7356 /* We must allocate the symbol in our .dynbss section, which will
7357 become part of the .bss section of the executable. There will be
7358 an entry for this symbol in the .dynsym section. The dynamic
7359 object will contain position independent code, so all references
7360 from the dynamic object to this symbol will go through the global
7361 offset table. The dynamic linker will use the .dynsym entry to
7362 determine the address it must put in the global offset table, so
7363 both the dynamic object and the regular object will refer to the
7364 same memory location for the variable. */
5bd4f169 7365
04c9666a
AM		 7366 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
7367 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 7368 runtime process image. We need to remember the offset into the
7369 .rela.bss section we are going to use. */
1d7e9d18 7370 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5bd4f169 7371 {
eea6121a 7372 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 7373 h->needs_copy = 1;
5bd4f169
AM		 7374 }
7375
4ce794b7 7376 s = htab->dynbss;
5bd4f169 7377
6cabe1ea 7378 return _bfd_elf_adjust_dynamic_copy (info, h, s);
5bd4f169
AM		 7379}
7380
e86ce104
AM		 7381/* If given a function descriptor symbol, hide both the function code
7382 sym and the descriptor. */
7383static void
4ce794b7
AM		 7384ppc64_elf_hide_symbol (struct bfd_link_info *info,
7385 struct elf_link_hash_entry *h,
7386 bfd_boolean force_local)
e86ce104 7387{
34814b9f 7388 struct ppc_link_hash_entry *eh;
e86ce104
AM		 7389 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
7390
34814b9f
AM		 7391 eh = (struct ppc_link_hash_entry *) h;
7392 if (eh->is_func_descriptor)
e86ce104 7393 {
34814b9f 7394 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 7395
721956f4 7396 if (fh == NULL)
d1329ca3
AM		 7397 {
7398 const char *p, *q;
7399 struct ppc_link_hash_table *htab;
7400 char save;
7401
7402 /* We aren't supposed to use alloca in BFD because on
7403 systems which do not have alloca the version in libiberty
7404 calls xmalloc, which might cause the program to crash
7405 when it runs out of memory. This function doesn't have a
7406 return status, so there's no way to gracefully return an
7407 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 7408 accessed; It's either a string in an ELF string table,
7409 or allocated in an objalloc structure. */
d1329ca3 7410
34814b9f 7411 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 7412 save = *p;
7413 *(char *) p = '.';
7414 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7415 if (htab == NULL)
7416 return;
7417
34814b9f
AM		 7418 fh = (struct ppc_link_hash_entry *)
7419 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 7420 *(char *) p = save;
7421
7422 /* Unfortunately, if it so happens that the string we were
7423 looking for was allocated immediately before this string,
7424 then we overwrote the string terminator. That's the only
7425 reason the lookup should fail. */
7426 if (fh == NULL)
7427 {
34814b9f
AM		 7428 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
7429 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 7430 --q, --p;
34814b9f
AM		 7431 if (q < eh->elf.root.root.string && *p == '.')
7432 fh = (struct ppc_link_hash_entry *)
7433 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 7434 }
7435 if (fh != NULL)
7436 {
34814b9f
AM		 7437 eh->oh = fh;
7438 fh->oh = eh;
d1329ca3
AM		 7439 }
7440 }
e86ce104 7441 if (fh != NULL)
34814b9f 7442 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 7443 }
7444}
7445
411e1bfb 7446static bfd_boolean
8843416a
AM		 7447get_sym_h (struct elf_link_hash_entry **hp,
7448 Elf_Internal_Sym **symp,
7449 asection **symsecp,
f961d9dd 7450 unsigned char **tls_maskp,
8843416a
AM		 7451 Elf_Internal_Sym **locsymsp,
7452 unsigned long r_symndx,
7453 bfd *ibfd)
411e1bfb 7454{
0ffa91dd 7455 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
411e1bfb
AM		 7456
7457 if (r_symndx >= symtab_hdr->sh_info)
7458 {
7459 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
7460 struct elf_link_hash_entry *h;
7461
7462 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 7463 h = elf_follow_link (h);
411e1bfb
AM		 7464
7465 if (hp != NULL)
7466 *hp = h;
7467
7468 if (symp != NULL)
7469 *symp = NULL;
7470
7471 if (symsecp != NULL)
7472 {
7473 asection *symsec = NULL;
7474 if (h->root.type == bfd_link_hash_defined
7475 || h->root.type == bfd_link_hash_defweak)
7476 symsec = h->root.u.def.section;
7477 *symsecp = symsec;
7478 }
7479
e7b938ca 7480 if (tls_maskp != NULL)
411e1bfb
AM		 7481 {
7482 struct ppc_link_hash_entry *eh;
7483
7484 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 7485 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 7486 }
7487 }
7488 else
7489 {
7490 Elf_Internal_Sym *sym;
7491 Elf_Internal_Sym *locsyms = *locsymsp;
7492
7493 if (locsyms == NULL)
7494 {
7495 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
7496 if (locsyms == NULL)
7497 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
7498 symtab_hdr->sh_info,
7499 0, NULL, NULL, NULL);
7500 if (locsyms == NULL)
7501 return FALSE;
7502 *locsymsp = locsyms;
7503 }
7504 sym = locsyms + r_symndx;
7505
7506 if (hp != NULL)
7507 *hp = NULL;
7508
7509 if (symp != NULL)
7510 *symp = sym;
7511
7512 if (symsecp != NULL)
cb33740c 7513 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
411e1bfb 7514
e7b938ca 7515 if (tls_maskp != NULL)
411e1bfb
AM		 7516 {
7517 struct got_entry **lgot_ents;
f961d9dd 7518 unsigned char *tls_mask;
411e1bfb 7519
e7b938ca 7520 tls_mask = NULL;
411e1bfb
AM		 7521 lgot_ents = elf_local_got_ents (ibfd);
7522 if (lgot_ents != NULL)
7523 {
e054468f
AM		 7524 struct plt_entry **local_plt = (struct plt_entry **)
7525 (lgot_ents + symtab_hdr->sh_info);
f961d9dd 7526 unsigned char *lgot_masks = (unsigned char *)
e054468f 7527 (local_plt + symtab_hdr->sh_info);
e7b938ca 7528 tls_mask = &lgot_masks[r_symndx];
411e1bfb 7529 }
e7b938ca 7530 *tls_maskp = tls_mask;
411e1bfb
AM		 7531 }
7532 }
7533 return TRUE;
7534}
7535
e7b938ca 7536/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 7537 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 7538 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 7539
7540static int
f961d9dd 7541get_tls_mask (unsigned char **tls_maskp,
3a71aa26
AM		 7542 unsigned long *toc_symndx,
7543 bfd_vma *toc_addend,
0d4792f7 7544 Elf_Internal_Sym **locsymsp,
3a71aa26
AM		 7545 const Elf_Internal_Rela *rel,
7546 bfd *ibfd)
411e1bfb
AM		 7547{
7548 unsigned long r_symndx;
0d4792f7 7549 int next_r;
411e1bfb
AM		 7550 struct elf_link_hash_entry *h;
7551 Elf_Internal_Sym *sym;
7552 asection *sec;
7553 bfd_vma off;
7554
7555 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 7556 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 7557 return 0;
411e1bfb 7558
e7b938ca 7559 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb 7560 || sec == NULL
6bee8834 7561 || ppc64_elf_section_data (sec) == NULL
7c8fe5c4 7562 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
951fd09b 7563 return 1;
411e1bfb
AM		 7564
7565 /* Look inside a TOC section too. */
7566 if (h != NULL)
7567 {
7568 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
7569 off = h->root.u.def.value;
7570 }
7571 else
7572 off = sym->st_value;
7573 off += rel->r_addend;
7574 BFD_ASSERT (off % 8 == 0);
3a71aa26
AM		 7575 r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8];
7576 next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1];
0d4792f7
AM		 7577 if (toc_symndx != NULL)
7578 *toc_symndx = r_symndx;
3a71aa26
AM		 7579 if (toc_addend != NULL)
7580 *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8];
7581 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
7582 return 0;
854b41e7 7583 if ((h == NULL || is_static_defined (h))
0d4792f7
AM		 7584 && (next_r == -1 || next_r == -2))
7585 return 1 - next_r;
951fd09b 7586 return 1;
411e1bfb
AM		 7587}
7588
3b421ab3
AM		 7589/* Find (or create) an entry in the tocsave hash table. */
7590
7591static struct tocsave_entry *
7592tocsave_find (struct ppc_link_hash_table *htab,
7593 enum insert_option insert,
7594 Elf_Internal_Sym **local_syms,
7595 const Elf_Internal_Rela *irela,
7596 bfd *ibfd)
7597{
7598 unsigned long r_indx;
7599 struct elf_link_hash_entry *h;
7600 Elf_Internal_Sym *sym;
7601 struct tocsave_entry ent, *p;
7602 hashval_t hash;
7603 struct tocsave_entry **slot;
7604
7605 r_indx = ELF64_R_SYM (irela->r_info);
7606 if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd))
7607 return NULL;
7608 if (ent.sec == NULL || ent.sec->output_section == NULL)
7609 {
4eca0228 7610 _bfd_error_handler
3b421ab3
AM		 7611 (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"));
7612 return NULL;
7613 }
7614
7615 if (h != NULL)
7616 ent.offset = h->root.u.def.value;
7617 else
7618 ent.offset = sym->st_value;
7619 ent.offset += irela->r_addend;
7620
7621 hash = tocsave_htab_hash (&ent);
7622 slot = ((struct tocsave_entry **)
7623 htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert));
7624 if (slot == NULL)
7625 return NULL;
7626
7627 if (*slot == NULL)
7628 {
7629 p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p));
7630 if (p == NULL)
7631 return NULL;
7632 *p = ent;
7633 *slot = p;
7634 }
7635 return *slot;
7636}
7637
754021d0 7638/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 7639 code for the old ABI, these will already have been done. */
754021d0
AM		 7640
7641static bfd_boolean
7642adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
7643{
7644 struct ppc_link_hash_entry *eh;
7645 asection *sym_sec;
74f0fb50 7646 struct _opd_sec_data *opd;
754021d0
AM		 7647
7648 if (h->root.type == bfd_link_hash_indirect)
7649 return TRUE;
7650
754021d0
AM		 7651 if (h->root.type != bfd_link_hash_defined
7652 && h->root.type != bfd_link_hash_defweak)
7653 return TRUE;
7654
7655 eh = (struct ppc_link_hash_entry *) h;
7656 if (eh->adjust_done)
7657 return TRUE;
7658
7659 sym_sec = eh->elf.root.u.def.section;
74f0fb50
AM		 7660 opd = get_opd_info (sym_sec);
7661 if (opd != NULL && opd->adjust != NULL)
754021d0 7662 {
51aecdc5 7663 long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)];
4025353c
AM		 7664 if (adjust == -1)
7665 {
7666 /* This entry has been deleted. */
b3fac117 7667 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
81688140
AM		 7668 if (dsec == NULL)
7669 {
7670 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
dbaa2011 7671 if (discarded_section (dsec))
81688140 7672 {
b3fac117 7673 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
81688140
AM		 7674 break;
7675 }
7676 }
4025353c 7677 eh->elf.root.u.def.value = 0;
81688140 7678 eh->elf.root.u.def.section = dsec;
4025353c
AM		 7679 }
7680 else
7681 eh->elf.root.u.def.value += adjust;
754021d0
AM		 7682 eh->adjust_done = 1;
7683 }
7684 return TRUE;
7685}
7686
8c1d1bb8 7687/* Handles decrementing dynamic reloc counts for the reloc specified by
19e08130 7688 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM
8c1d1bb8
AM		 7689 have already been determined. */
7690
7691static bfd_boolean
7692dec_dynrel_count (bfd_vma r_info,
7693 asection *sec,
7694 struct bfd_link_info *info,
7695 Elf_Internal_Sym **local_syms,
7696 struct elf_link_hash_entry *h,
19e08130 7697 Elf_Internal_Sym *sym)
8c1d1bb8
AM		 7698{
7699 enum elf_ppc64_reloc_type r_type;
19e08130 7700 asection *sym_sec = NULL;
8c1d1bb8
AM		 7701
7702 /* Can this reloc be dynamic? This switch, and later tests here
7703 should be kept in sync with the code in check_relocs. */
7704 r_type = ELF64_R_TYPE (r_info);
7705 switch (r_type)
7706 {
7707 default:
7708 return TRUE;
7709
7710 case R_PPC64_TPREL16:
7711 case R_PPC64_TPREL16_LO:
7712 case R_PPC64_TPREL16_HI:
7713 case R_PPC64_TPREL16_HA:
7714 case R_PPC64_TPREL16_DS:
7715 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 7716 case R_PPC64_TPREL16_HIGH:
7717 case R_PPC64_TPREL16_HIGHA:
8c1d1bb8
AM		 7718 case R_PPC64_TPREL16_HIGHER:
7719 case R_PPC64_TPREL16_HIGHERA:
7720 case R_PPC64_TPREL16_HIGHEST:
7721 case R_PPC64_TPREL16_HIGHESTA:
0e1862bb 7722 if (!bfd_link_pic (info))
8c1d1bb8
AM		 7723 return TRUE;
7724
7725 case R_PPC64_TPREL64:
7726 case R_PPC64_DTPMOD64:
7727 case R_PPC64_DTPREL64:
7728 case R_PPC64_ADDR64:
7729 case R_PPC64_REL30:
7730 case R_PPC64_REL32:
7731 case R_PPC64_REL64:
7732 case R_PPC64_ADDR14:
7733 case R_PPC64_ADDR14_BRNTAKEN:
7734 case R_PPC64_ADDR14_BRTAKEN:
7735 case R_PPC64_ADDR16:
7736 case R_PPC64_ADDR16_DS:
7737 case R_PPC64_ADDR16_HA:
7738 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 7739 case R_PPC64_ADDR16_HIGH:
7740 case R_PPC64_ADDR16_HIGHA:
8c1d1bb8
AM		 7741 case R_PPC64_ADDR16_HIGHER:
7742 case R_PPC64_ADDR16_HIGHERA:
7743 case R_PPC64_ADDR16_HIGHEST:
7744 case R_PPC64_ADDR16_HIGHESTA:
7745 case R_PPC64_ADDR16_LO:
7746 case R_PPC64_ADDR16_LO_DS:
7747 case R_PPC64_ADDR24:
7748 case R_PPC64_ADDR32:
7749 case R_PPC64_UADDR16:
7750 case R_PPC64_UADDR32:
7751 case R_PPC64_UADDR64:
7752 case R_PPC64_TOC:
7753 break;
7754 }
7755
7756 if (local_syms != NULL)
7757 {
7758 unsigned long r_symndx;
8c1d1bb8
AM		 7759 bfd *ibfd = sec->owner;
7760
7761 r_symndx = ELF64_R_SYM (r_info);
7762 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
7763 return FALSE;
7764 }
7765
0e1862bb 7766 if ((bfd_link_pic (info)
1d483afe 7767 && (must_be_dyn_reloc (info, r_type)
8c1d1bb8 7768 || (h != NULL
198f1157 7769 && (!SYMBOLIC_BIND (info, h)
8c1d1bb8
AM		 7770 || h->root.type == bfd_link_hash_defweak
7771 || !h->def_regular))))
7772 || (ELIMINATE_COPY_RELOCS
0e1862bb 7773 && !bfd_link_pic (info)
8c1d1bb8
AM		 7774 && h != NULL
7775 && (h->root.type == bfd_link_hash_defweak
7776 || !h->def_regular)))
7777 ;
7778 else
7779 return TRUE;
7780
7781 if (h != NULL)
6edfbbad 7782 {
19e08130
AM		 7783 struct elf_dyn_relocs *p;
7784 struct elf_dyn_relocs **pp;
7785 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
7786
7787 /* elf_gc_sweep may have already removed all dyn relocs associated
7788 with local syms for a given section. Also, symbol flags are
7789 changed by elf_gc_sweep_symbol, confusing the test above. Don't
7790 report a dynreloc miscount. */
7791 if (*pp == NULL && info->gc_sections)
7792 return TRUE;
7793
7794 while ((p = *pp) != NULL)
60124e18 7795 {
19e08130
AM		 7796 if (p->sec == sec)
7797 {
7798 if (!must_be_dyn_reloc (info, r_type))
7799 p->pc_count -= 1;
7800 p->count -= 1;
7801 if (p->count == 0)
7802 *pp = p->next;
7803 return TRUE;
7804 }
7805 pp = &p->next;
60124e18 7806 }
6edfbbad 7807 }
19e08130
AM		 7808 else
7809 {
7810 struct ppc_dyn_relocs *p;
7811 struct ppc_dyn_relocs **pp;
7812 void *vpp;
7813 bfd_boolean is_ifunc;
8c1d1bb8 7814
19e08130
AM		 7815 if (local_syms == NULL)
7816 sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
7817 if (sym_sec == NULL)
7818 sym_sec = sec;
c57da1a7 7819
19e08130
AM		 7820 vpp = &elf_section_data (sym_sec)->local_dynrel;
7821 pp = (struct ppc_dyn_relocs **) vpp;
7822
7823 if (*pp == NULL && info->gc_sections)
7824 return TRUE;
7825
7826 is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC;
7827 while ((p = *pp) != NULL)
8c1d1bb8 7828 {
19e08130
AM		 7829 if (p->sec == sec && p->ifunc == is_ifunc)
7830 {
7831 p->count -= 1;
7832 if (p->count == 0)
7833 *pp = p->next;
7834 return TRUE;
7835 }
7836 pp = &p->next;
8c1d1bb8 7837 }
8c1d1bb8
AM		 7838 }
7839
695344c0 7840 /* xgettext:c-format */
8de848d8 7841 info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"),
25f53a85 7842 sec->owner, sec);
8c1d1bb8
AM		 7843 bfd_set_error (bfd_error_bad_value);
7844 return FALSE;
7845}
7846
754021d0
AM		 7847/* Remove unused Official Procedure Descriptor entries. Currently we
7848 only remove those associated with functions in discarded link-once
7849 sections, or weakly defined functions that have been overridden. It
7850 would be possible to remove many more entries for statically linked
7851 applications. */
7852
b34976b6 7853bfd_boolean
e7d1c40c 7854ppc64_elf_edit_opd (struct bfd_link_info *info)
1e2f5b6e
AM		 7855{
7856 bfd *ibfd;
754021d0 7857 bfd_boolean some_edited = FALSE;
3f764659 7858 asection *need_pad = NULL;
e7d1c40c
AM		 7859 struct ppc_link_hash_table *htab;
7860
7861 htab = ppc_hash_table (info);
7862 if (htab == NULL)
7863 return FALSE;
1e2f5b6e 7864
c72f2fb2 7865 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
1e2f5b6e
AM		 7866 {
7867 asection *sec;
7868 Elf_Internal_Rela *relstart, *rel, *relend;
7869 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 7870 Elf_Internal_Sym *local_syms;
74f0fb50 7871 struct _opd_sec_data *opd;
51aecdc5 7872 bfd_boolean need_edit, add_aux_fields, broken;
3f764659 7873 bfd_size_type cnt_16b = 0;
1e2f5b6e 7874
854b41e7
AM		 7875 if (!is_ppc64_elf (ibfd))
7876 continue;
7877
1e2f5b6e 7878 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 7879 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM		 7880 continue;
7881
dbaa2011 7882 if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS)
4b85d634
AM		 7883 continue;
7884
1e2f5b6e
AM		 7885 if (sec->output_section == bfd_abs_section_ptr)
7886 continue;
7887
7888 /* Look through the section relocs. */
7889 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
7890 continue;
7891
6cdc0ccc 7892 local_syms = NULL;
0ffa91dd 7893 symtab_hdr = &elf_symtab_hdr (ibfd);
1e2f5b6e
AM		 7894
7895 /* Read the relocations. */
4ce794b7 7896 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 7897 info->keep_memory);
1e2f5b6e 7898 if (relstart == NULL)
b34976b6 7899 return FALSE;
1e2f5b6e
AM		 7900
7901 /* First run through the relocs to check they are sane, and to
7902 determine whether we need to edit this opd section. */
b34976b6 7903 need_edit = FALSE;
51aecdc5 7904 broken = FALSE;
3f764659 7905 need_pad = sec;
1e2f5b6e 7906 relend = relstart + sec->reloc_count;
50bc7936 7907 for (rel = relstart; rel < relend; )
1e2f5b6e 7908 {
04c9666a 7909 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 7910 unsigned long r_symndx;
7911 asection *sym_sec;
7912 struct elf_link_hash_entry *h;
7913 Elf_Internal_Sym *sym;
51aecdc5 7914 bfd_vma offset;
1e2f5b6e 7915
51aecdc5 7916 /* .opd contains an array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 7917 only interested in the reloc pointing to a function entry
7918 point. */
51aecdc5
AM		 7919 offset = rel->r_offset;
7920 if (rel + 1 == relend
7921 || rel[1].r_offset != offset + 8)
1e2f5b6e
AM		 7922 {
7923 /* If someone messes with .opd alignment then after a
7924 "ld -r" we might have padding in the middle of .opd.
7925 Also, there's nothing to prevent someone putting
7926 something silly in .opd with the assembler. No .opd
b34976b6 7927 optimization for them! */
3f764659 7928 broken_opd:
4eca0228 7929 _bfd_error_handler
d003868e 7930 (_("%B: .opd is not a regular array of opd entries"), ibfd);
51aecdc5 7931 broken = TRUE;
1e2f5b6e
AM		 7932 break;
7933 }
7934
50bc7936
AM		 7935 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
7936 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
7937 {
4eca0228 7938 _bfd_error_handler
695344c0 7939 /* xgettext:c-format */
d003868e
AM		 7940 (_("%B: unexpected reloc type %u in .opd section"),
7941 ibfd, r_type);
51aecdc5 7942 broken = TRUE;
50bc7936
AM		 7943 break;
7944 }
7945
1e2f5b6e 7946 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 7947 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7948 r_symndx, ibfd))
50bc7936 7949 goto error_ret;
1e2f5b6e
AM		 7950
7951 if (sym_sec == NULL || sym_sec->owner == NULL)
7952 {
411e1bfb
AM		 7953 const char *sym_name;
7954 if (h != NULL)
7955 sym_name = h->root.root.string;
7956 else
26c61ae5
L		 7957 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7958 sym_sec);
411e1bfb 7959
4eca0228 7960 _bfd_error_handler
695344c0 7961 /* xgettext:c-format */
d003868e
AM		 7962 (_("%B: undefined sym `%s' in .opd section"),
7963 ibfd, sym_name);
51aecdc5 7964 broken = TRUE;
1e2f5b6e
AM		 7965 break;
7966 }
7967
51020317
AM		 7968 /* opd entries are always for functions defined in the
7969 current input bfd. If the symbol isn't defined in the
7970 input bfd, then we won't be using the function in this
7971 bfd; It must be defined in a linkonce section in another
7972 bfd, or is weak. It's also possible that we are
7973 discarding the function due to a linker script /DISCARD/,
7974 which we test for via the output_section. */
7975 if (sym_sec->owner != ibfd
7976 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 7977 need_edit = TRUE;
1e2f5b6e 7978
50bc7936 7979 rel += 2;
51aecdc5
AM		 7980 if (rel + 1 == relend
7981 || (rel + 2 < relend
7982 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC))
7983 ++rel;
7984
7985 if (rel == relend)
3f764659
JJ		 7986 {
7987 if (sec->size == offset + 24)
7988 {
7989 need_pad = NULL;
7990 break;
7991 }
51aecdc5 7992 if (sec->size == offset + 16)
3f764659
JJ		 7993 {
7994 cnt_16b++;
7995 break;
7996 }
7997 goto broken_opd;
7998 }
3f764659
JJ		 7999 else if (rel + 1 < relend
8000 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
8001 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
8002 {
51aecdc5
AM		 8003 if (rel[0].r_offset == offset + 16)
8004 cnt_16b++;
8005 else if (rel[0].r_offset != offset + 24)
8006 goto broken_opd;
3f764659
JJ		 8007 }
8008 else
8009 goto broken_opd;
1e2f5b6e
AM		 8010 }
8011
e7d1c40c 8012 add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0;
3f764659 8013
51aecdc5 8014 if (!broken && (need_edit || add_aux_fields))
1e2f5b6e
AM		 8015 {
8016 Elf_Internal_Rela *write_rel;
d4730f92 8017 Elf_Internal_Shdr *rel_hdr;
1e2f5b6e 8018 bfd_byte *rptr, *wptr;
983bddc8 8019 bfd_byte *new_contents;
74f0fb50
AM		 8020 bfd_size_type amt;
8021
983bddc8 8022 new_contents = NULL;
51aecdc5 8023 amt = OPD_NDX (sec->size) * sizeof (long);
74f0fb50 8024 opd = &ppc64_elf_section_data (sec)->u.opd;
33c0ec9d 8025 opd->adjust = bfd_zalloc (sec->owner, amt);
74f0fb50
AM		 8026 if (opd->adjust == NULL)
8027 return FALSE;
8028 ppc64_elf_section_data (sec)->sec_type = sec_opd;
1e2f5b6e
AM		 8029
8030 /* This seems a waste of time as input .opd sections are all
8031 zeros as generated by gcc, but I suppose there's no reason
8032 this will always be so. We might start putting something in
8033 the third word of .opd entries. */
8034 if ((sec->flags & SEC_IN_MEMORY) == 0)
8035 {
eea6121a
AM		 8036 bfd_byte *loc;
8037 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 8038 {
eea6121a
AM		 8039 if (loc != NULL)
8040 free (loc);
50bc7936 8041 error_ret:
6cdc0ccc
AM		 8042 if (local_syms != NULL
8043 && symtab_hdr->contents != (unsigned char *) local_syms)
8044 free (local_syms);
6cdc0ccc
AM		 8045 if (elf_section_data (sec)->relocs != relstart)
8046 free (relstart);
b34976b6 8047 return FALSE;
6cdc0ccc 8048 }
1e2f5b6e
AM		 8049 sec->contents = loc;
8050 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
8051 }
8052
8053 elf_section_data (sec)->relocs = relstart;
8054
3f764659 8055 new_contents = sec->contents;
3f764659
JJ		 8056 if (add_aux_fields)
8057 {
8058 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
8059 if (new_contents == NULL)
8060 return FALSE;
51aecdc5 8061 need_pad = NULL;
3f764659 8062 }
b4f4e59f
AM		 8063 wptr = new_contents;
8064 rptr = sec->contents;
1e2f5b6e 8065 write_rel = relstart;
51aecdc5 8066 for (rel = relstart; rel < relend; )
1e2f5b6e 8067 {
50bc7936
AM		 8068 unsigned long r_symndx;
8069 asection *sym_sec;
8070 struct elf_link_hash_entry *h;
51aecdc5 8071 struct ppc_link_hash_entry *fdh = NULL;
50bc7936 8072 Elf_Internal_Sym *sym;
51aecdc5
AM		 8073 long opd_ent_size;
8074 Elf_Internal_Rela *next_rel;
8075 bfd_boolean skip;
50bc7936
AM		 8076
8077 r_symndx = ELF64_R_SYM (rel->r_info);
8078 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 8079 r_symndx, ibfd))
50bc7936
AM		 8080 goto error_ret;
8081
51aecdc5
AM		 8082 next_rel = rel + 2;
8083 if (next_rel + 1 == relend
8084 || (next_rel + 2 < relend
8085 && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC))
8086 ++next_rel;
8087
8088 /* See if the .opd entry is full 24 byte or
8089 16 byte (with fd_aux entry overlapped with next
8090 fd_func). */
8091 opd_ent_size = 24;
8092 if (next_rel == relend)
1e2f5b6e 8093 {
51aecdc5 8094 if (sec->size == rel->r_offset + 16)
3f764659 8095 opd_ent_size = 16;
51aecdc5
AM		 8096 }
8097 else if (next_rel->r_offset == rel->r_offset + 16)
8098 opd_ent_size = 16;
3f764659 8099
51aecdc5
AM		 8100 if (h != NULL
8101 && h->root.root.string[0] == '.')
8102 {
8103 fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab);
8104 if (fdh != NULL
8105 && fdh->elf.root.type != bfd_link_hash_defined
8106 && fdh->elf.root.type != bfd_link_hash_defweak)
8107 fdh = NULL;
8108 }
1e2f5b6e 8109
51aecdc5
AM		 8110 skip = (sym_sec->owner != ibfd
8111 || sym_sec->output_section == bfd_abs_section_ptr);
8112 if (skip)
8113 {
8114 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7 8115 {
51aecdc5
AM		 8116 /* Arrange for the function descriptor sym
8117 to be dropped. */
8118 fdh->elf.root.u.def.value = 0;
8119 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 8120 }
51aecdc5 8121 opd->adjust[OPD_NDX (rel->r_offset)] = -1;
1e2f5b6e 8122
0e1862bb 8123 if (NO_OPD_RELOCS || bfd_link_relocatable (info))
51aecdc5
AM		 8124 rel = next_rel;
8125 else
8126 while (1)
8127 {
8128 if (!dec_dynrel_count (rel->r_info, sec, info,
8129 NULL, h, sym))
8130 goto error_ret;
754021d0 8131
51aecdc5
AM		 8132 if (++rel == next_rel)
8133 break;
1e2f5b6e 8134
51aecdc5
AM		 8135 r_symndx = ELF64_R_SYM (rel->r_info);
8136 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8137 r_symndx, ibfd))
8138 goto error_ret;
8139 }
50bc7936
AM		 8140 }
8141 else
1e2f5b6e 8142 {
51aecdc5
AM		 8143 /* We'll be keeping this opd entry. */
8144 long adjust;
8145
8146 if (fdh != NULL)
8147 {
8148 /* Redefine the function descriptor symbol to
8149 this location in the opd section. It is
8150 necessary to update the value here rather
8151 than using an array of adjustments as we do
8152 for local symbols, because various places
8153 in the generic ELF code use the value
8154 stored in u.def.value. */
8155 fdh->elf.root.u.def.value = wptr - new_contents;
8156 fdh->adjust_done = 1;
8157 }
8158
8159 /* Local syms are a bit tricky. We could
8160 tweak them as they can be cached, but
8161 we'd need to look through the local syms
8162 for the function descriptor sym which we
8163 don't have at the moment. So keep an
8164 array of adjustments. */
8165 adjust = (wptr - new_contents) - (rptr - sec->contents);
8166 opd->adjust[OPD_NDX (rel->r_offset)] = adjust;
8167
8168 if (wptr != rptr)
8169 memcpy (wptr, rptr, opd_ent_size);
8170 wptr += opd_ent_size;
8171 if (add_aux_fields && opd_ent_size == 16)
8172 {
8173 memset (wptr, '\0', 8);
8174 wptr += 8;
8175 }
8176
50bc7936 8177 /* We need to adjust any reloc offsets to point to the
51aecdc5
AM		 8178 new opd entries. */
8179 for ( ; rel != next_rel; ++rel)
8180 {
8181 rel->r_offset += adjust;
8182 if (write_rel != rel)
8183 memcpy (write_rel, rel, sizeof (*rel));
8184 ++write_rel;
8185 }
1e2f5b6e 8186 }
51aecdc5
AM		 8187
8188 rptr += opd_ent_size;
1e2f5b6e
AM		 8189 }
8190
3f764659 8191 sec->size = wptr - new_contents;
1e2f5b6e 8192 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 8193 if (add_aux_fields)
8194 {
8195 free (sec->contents);
8196 sec->contents = new_contents;
8197 }
8198
05bf9422 8199 /* Fudge the header size too, as this is used later in
cdcf6e38 8200 elf_bfd_final_link if we are emitting relocs. */
d4730f92
BS		 8201 rel_hdr = _bfd_elf_single_rel_hdr (sec);
8202 rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize;
754021d0 8203 some_edited = TRUE;
1e2f5b6e 8204 }
6cdc0ccc 8205 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 8206 free (relstart);
6cdc0ccc 8207
411e1bfb
AM		 8208 if (local_syms != NULL
8209 && symtab_hdr->contents != (unsigned char *) local_syms)
8210 {
8211 if (!info->keep_memory)
8212 free (local_syms);
8213 else
8214 symtab_hdr->contents = (unsigned char *) local_syms;
8215 }
8216 }
8217
754021d0
AM		 8218 if (some_edited)
8219 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
8220
3f764659
JJ		 8221 /* If we are doing a final link and the last .opd entry is just 16 byte
8222 long, add a 8 byte padding after it. */
0e1862bb 8223 if (need_pad != NULL && !bfd_link_relocatable (info))
3f764659
JJ		 8224 {
8225 bfd_byte *p;
8226
8227 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
8228 {
8229 BFD_ASSERT (need_pad->size > 0);
8230
8231 p = bfd_malloc (need_pad->size + 8);
8232 if (p == NULL)
8233 return FALSE;
699733f6 8234
3f764659
JJ		 8235 if (! bfd_get_section_contents (need_pad->owner, need_pad,
8236 p, 0, need_pad->size))
8237 return FALSE;
8238
8239 need_pad->contents = p;
8240 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
8241 }
8242 else
8243 {
8244 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
8245 if (p == NULL)
8246 return FALSE;
8247
8248 need_pad->contents = p;
8249 }
8250
8251 memset (need_pad->contents + need_pad->size, 0, 8);
8252 need_pad->size += 8;
8253 }
8254
411e1bfb
AM		 8255 return TRUE;
8256}
8257
e1918d23 8258/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 8259
e1918d23 8260asection *
e7d1c40c 8261ppc64_elf_tls_setup (struct bfd_link_info *info)
411e1bfb 8262{
411e1bfb
AM		 8263 struct ppc_link_hash_table *htab;
8264
411e1bfb 8265 htab = ppc_hash_table (info);
4dfe6ac6
NC		 8266 if (htab == NULL)
8267 return NULL;
8268
ee67d69a
AM		 8269 if (abiversion (info->output_bfd) == 1)
8270 htab->opd_abi = 1;
8271
e7d1c40c 8272 if (htab->params->no_multi_toc)
33c0ec9d
AM		 8273 htab->do_multi_toc = 0;
8274 else if (!htab->do_multi_toc)
e7d1c40c 8275 htab->params->no_multi_toc = 1;
33c0ec9d 8276
3a71aa26
AM		 8277 htab->tls_get_addr = ((struct ppc_link_hash_entry *)
8278 elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
8279 FALSE, FALSE, TRUE));
a7f2871e
AM		 8280 /* Move dynamic linking info to the function descriptor sym. */
8281 if (htab->tls_get_addr != NULL)
8282 func_desc_adjust (&htab->tls_get_addr->elf, info);
3a71aa26
AM		 8283 htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *)
8284 elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
8285 FALSE, FALSE, TRUE));
7c9cf415 8286 if (htab->params->tls_get_addr_opt)
a7f2871e
AM		 8287 {
8288 struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd;
8289
8290 opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt",
8291 FALSE, FALSE, TRUE);
8292 if (opt != NULL)
8293 func_desc_adjust (opt, info);
8294 opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
8295 FALSE, FALSE, TRUE);
8296 if (opt_fd != NULL
8297 && (opt_fd->root.type == bfd_link_hash_defined
8298 || opt_fd->root.type == bfd_link_hash_defweak))
8299 {
8300 /* If glibc supports an optimized __tls_get_addr call stub,
8301 signalled by the presence of __tls_get_addr_opt, and we'll
8302 be calling __tls_get_addr via a plt call stub, then
8303 make __tls_get_addr point to __tls_get_addr_opt. */
8304 tga_fd = &htab->tls_get_addr_fd->elf;
8305 if (htab->elf.dynamic_sections_created
8306 && tga_fd != NULL
8307 && (tga_fd->type == STT_FUNC
8308 || tga_fd->needs_plt)
8309 && !(SYMBOL_CALLS_LOCAL (info, tga_fd)
8310 || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT
8311 && tga_fd->root.type == bfd_link_hash_undefweak)))
8312 {
8313 struct plt_entry *ent;
8314
8315 for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next)
8316 if (ent->plt.refcount > 0)
8317 break;
8318 if (ent != NULL)
8319 {
8320 tga_fd->root.type = bfd_link_hash_indirect;
8321 tga_fd->root.u.i.link = &opt_fd->root;
8322 ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd);
3bd43ebc 8323 opt_fd->forced_local = 0;
a7f2871e
AM		 8324 if (opt_fd->dynindx != -1)
8325 {
8326 /* Use __tls_get_addr_opt in dynamic relocations. */
8327 opt_fd->dynindx = -1;
8328 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
8329 opt_fd->dynstr_index);
8330 if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd))
854b41e7 8331 return NULL;
a7f2871e
AM		 8332 }
8333 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd;
8334 tga = &htab->tls_get_addr->elf;
8335 if (opt != NULL && tga != NULL)
8336 {
8337 tga->root.type = bfd_link_hash_indirect;
8338 tga->root.u.i.link = &opt->root;
8339 ppc64_elf_copy_indirect_symbol (info, opt, tga);
3bd43ebc 8340 opt->forced_local = 0;
a7f2871e
AM		 8341 _bfd_elf_link_hash_hide_symbol (info, opt,
8342 tga->forced_local);
8343 htab->tls_get_addr = (struct ppc_link_hash_entry *) opt;
8344 }
8345 htab->tls_get_addr_fd->oh = htab->tls_get_addr;
8346 htab->tls_get_addr_fd->is_func_descriptor = 1;
8347 if (htab->tls_get_addr != NULL)
8348 {
8349 htab->tls_get_addr->oh = htab->tls_get_addr_fd;
8350 htab->tls_get_addr->is_func = 1;
8351 }
8352 }
8353 }
8354 }
7c9cf415
AM		 8355 else if (htab->params->tls_get_addr_opt < 0)
8356 htab->params->tls_get_addr_opt = 0;
a7f2871e 8357 }
33c0ec9d 8358 return _bfd_elf_tls_setup (info->output_bfd, info);
3a71aa26 8359}
8387904d 8360
3a71aa26
AM		 8361/* Return TRUE iff REL is a branch reloc with a global symbol matching
8362 HASH1 or HASH2. */
8387904d 8363
3a71aa26
AM		 8364static bfd_boolean
8365branch_reloc_hash_match (const bfd *ibfd,
8366 const Elf_Internal_Rela *rel,
8367 const struct ppc_link_hash_entry *hash1,
8368 const struct ppc_link_hash_entry *hash2)
8369{
8370 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
8371 enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info);
8372 unsigned int r_symndx = ELF64_R_SYM (rel->r_info);
8373
e054468f 8374 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
8387904d 8375 {
3a71aa26
AM		 8376 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
8377 struct elf_link_hash_entry *h;
8387904d 8378
3a71aa26 8379 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 8380 h = elf_follow_link (h);
3a71aa26
AM		 8381 if (h == &hash1->elf || h == &hash2->elf)
8382 return TRUE;
a48ebf4d 8383 }
3a71aa26 8384 return FALSE;
951fd09b 8385}
411e1bfb 8386
951fd09b
AM		 8387/* Run through all the TLS relocs looking for optimization
8388 opportunities. The linker has been hacked (see ppc64elf.em) to do
8389 a preliminary section layout so that we know the TLS segment
8390 offsets. We can't optimize earlier because some optimizations need
8391 to know the tp offset, and we need to optimize before allocating
8392 dynamic relocations. */
8393
8394bfd_boolean
33c0ec9d 8395ppc64_elf_tls_optimize (struct bfd_link_info *info)
951fd09b
AM		 8396{
8397 bfd *ibfd;
8398 asection *sec;
8399 struct ppc_link_hash_table *htab;
663a1470 8400 unsigned char *toc_ref;
102890f0 8401 int pass;
951fd09b 8402
3cbc1e5e 8403 if (!bfd_link_executable (info))
411e1bfb
AM		 8404 return TRUE;
8405
951fd09b 8406 htab = ppc_hash_table (info);
4dfe6ac6
NC		 8407 if (htab == NULL)
8408 return FALSE;
8409
663a1470
AM		 8410 /* Make two passes over the relocs. On the first pass, mark toc
8411 entries involved with tls relocs, and check that tls relocs
8412 involved in setting up a tls_get_addr call are indeed followed by
8413 such a call. If they are not, we can't do any tls optimization.
8414 On the second pass twiddle tls_mask flags to notify
8415 relocate_section that optimization can be done, and adjust got
8416 and plt refcounts. */
8417 toc_ref = NULL;
8418 for (pass = 0; pass < 2; ++pass)
c72f2fb2 8419 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
663a1470
AM		 8420 {
8421 Elf_Internal_Sym *locsyms = NULL;
8422 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
8423
102890f0
AM		 8424 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8425 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
8426 {
8427 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 8428 bfd_boolean found_tls_get_addr_arg = 0;
411e1bfb 8429
102890f0
AM		 8430 /* Read the relocations. */
8431 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8432 info->keep_memory);
8433 if (relstart == NULL)
2915c55b
JK		 8434 {
8435 free (toc_ref);
8436 return FALSE;
8437 }
411e1bfb 8438
102890f0
AM		 8439 relend = relstart + sec->reloc_count;
8440 for (rel = relstart; rel < relend; rel++)
8441 {
8442 enum elf_ppc64_reloc_type r_type;
8443 unsigned long r_symndx;
8444 struct elf_link_hash_entry *h;
8445 Elf_Internal_Sym *sym;
8446 asection *sym_sec;
f961d9dd
AM		 8447 unsigned char *tls_mask;
8448 unsigned char tls_set, tls_clear, tls_type = 0;
102890f0
AM		 8449 bfd_vma value;
8450 bfd_boolean ok_tprel, is_local;
8451 long toc_ref_index = 0;
8452 int expecting_tls_get_addr = 0;
663a1470 8453 bfd_boolean ret = FALSE;
411e1bfb 8454
102890f0
AM		 8455 r_symndx = ELF64_R_SYM (rel->r_info);
8456 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
8457 r_symndx, ibfd))
8458 {
8459 err_free_rel:
8460 if (elf_section_data (sec)->relocs != relstart)
8461 free (relstart);
8462 if (toc_ref != NULL)
8463 free (toc_ref);
8464 if (locsyms != NULL
0ffa91dd 8465 && (elf_symtab_hdr (ibfd).contents
102890f0
AM		 8466 != (unsigned char *) locsyms))
8467 free (locsyms);
663a1470 8468 return ret;
102890f0 8469 }
411e1bfb 8470
102890f0
AM		 8471 if (h != NULL)
8472 {
766bc656
AM		 8473 if (h->root.type == bfd_link_hash_defined
8474 || h->root.type == bfd_link_hash_defweak)
8475 value = h->root.u.def.value;
8476 else if (h->root.type == bfd_link_hash_undefweak)
8477 value = 0;
8478 else
663a1470
AM		 8479 {
8480 found_tls_get_addr_arg = 0;
8481 continue;
8482 }
102890f0
AM		 8483 }
8484 else
8485 /* Symbols referenced by TLS relocs must be of type
8486 STT_TLS. So no need for .opd local sym adjust. */
8487 value = sym->st_value;
8488
8489 ok_tprel = FALSE;
8490 is_local = FALSE;
8491 if (h == NULL
8492 || !h->def_dynamic)
8493 {
8494 is_local = TRUE;
766bc656
AM		 8495 if (h != NULL
8496 && h->root.type == bfd_link_hash_undefweak)
8497 ok_tprel = TRUE;
c27b8c2a
AM		 8498 else if (sym_sec != NULL
8499 && sym_sec->output_section != NULL)
766bc656
AM		 8500 {
8501 value += sym_sec->output_offset;
8502 value += sym_sec->output_section->vma;
8503 value -= htab->elf.tls_sec->vma;
8504 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
8505 < (bfd_vma) 1 << 32);
8506 }
102890f0 8507 }
951fd09b 8508
102890f0 8509 r_type = ELF64_R_TYPE (rel->r_info);
663a1470
AM		 8510 /* If this section has old-style __tls_get_addr calls
8511 without marker relocs, then check that each
8512 __tls_get_addr call reloc is preceded by a reloc
8513 that conceivably belongs to the __tls_get_addr arg
8514 setup insn. If we don't find matching arg setup
8515 relocs, don't do any tls optimization. */
8516 if (pass == 0
8517 && sec->has_tls_get_addr_call
8518 && h != NULL
8519 && (h == &htab->tls_get_addr->elf
8520 || h == &htab->tls_get_addr_fd->elf)
8521 && !found_tls_get_addr_arg
8522 && is_branch_reloc (r_type))
8523 {
25f53a85 8524 info->callbacks->minfo (_("%H __tls_get_addr lost arg, "
663a1470
AM		 8525 "TLS optimization disabled\n"),
8526 ibfd, sec, rel->r_offset);
8527 ret = TRUE;
8528 goto err_free_rel;
8529 }
8530
8531 found_tls_get_addr_arg = 0;
102890f0
AM		 8532 switch (r_type)
8533 {
8534 case R_PPC64_GOT_TLSLD16:
8535 case R_PPC64_GOT_TLSLD16_LO:
8536 expecting_tls_get_addr = 1;
663a1470 8537 found_tls_get_addr_arg = 1;
1a0670f3 8538 /* Fall through. */
102890f0
AM		 8539
8540 case R_PPC64_GOT_TLSLD16_HI:
8541 case R_PPC64_GOT_TLSLD16_HA:
8542 /* These relocs should never be against a symbol
8543 defined in a shared lib. Leave them alone if
8544 that turns out to be the case. */
8545 if (!is_local)
8546 continue;
411e1bfb 8547
102890f0 8548 /* LD -> LE */
411e1bfb 8549 tls_set = 0;
102890f0
AM		 8550 tls_clear = TLS_LD;
8551 tls_type = TLS_TLS | TLS_LD;
8552 break;
411e1bfb 8553
102890f0
AM		 8554 case R_PPC64_GOT_TLSGD16:
8555 case R_PPC64_GOT_TLSGD16_LO:
8556 expecting_tls_get_addr = 1;
663a1470 8557 found_tls_get_addr_arg = 1;
1a0670f3 8558 /* Fall through. */
102890f0
AM		 8559
8560 case R_PPC64_GOT_TLSGD16_HI:
8561 case R_PPC64_GOT_TLSGD16_HA:
8562 if (ok_tprel)
8563 /* GD -> LE */
411e1bfb 8564 tls_set = 0;
102890f0
AM		 8565 else
8566 /* GD -> IE */
8567 tls_set = TLS_TLS | TLS_TPRELGD;
8568 tls_clear = TLS_GD;
8569 tls_type = TLS_TLS | TLS_GD;
8570 break;
8571
8572 case R_PPC64_GOT_TPREL16_DS:
8573 case R_PPC64_GOT_TPREL16_LO_DS:
8574 case R_PPC64_GOT_TPREL16_HI:
8575 case R_PPC64_GOT_TPREL16_HA:
8576 if (ok_tprel)
8577 {
8578 /* IE -> LE */
8579 tls_set = 0;
8580 tls_clear = TLS_TPREL;
8581 tls_type = TLS_TLS | TLS_TPREL;
8582 break;
8583 }
411e1bfb
AM		 8584 continue;
8585
727fc41e
AM		 8586 case R_PPC64_TLSGD:
8587 case R_PPC64_TLSLD:
663a1470 8588 found_tls_get_addr_arg = 1;
1a0670f3 8589 /* Fall through. */
663a1470
AM		 8590
8591 case R_PPC64_TLS:
8592 case R_PPC64_TOC16:
8593 case R_PPC64_TOC16_LO:
102890f0
AM		 8594 if (sym_sec == NULL || sym_sec != toc)
8595 continue;
8596
8597 /* Mark this toc entry as referenced by a TLS
8598 code sequence. We can do that now in the
8599 case of R_PPC64_TLS, and after checking for
8600 tls_get_addr for the TOC16 relocs. */
8601 if (toc_ref == NULL)
663a1470
AM		 8602 toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8);
8603 if (toc_ref == NULL)
8604 goto err_free_rel;
8605
102890f0
AM		 8606 if (h != NULL)
8607 value = h->root.u.def.value;
8608 else
8609 value = sym->st_value;
8610 value += rel->r_addend;
73242275
AM		 8611 if (value % 8 != 0)
8612 continue;
8613 BFD_ASSERT (value < toc->size
8614 && toc->output_offset % 8 == 0);
663a1470 8615 toc_ref_index = (value + toc->output_offset) / 8;
727fc41e
AM		 8616 if (r_type == R_PPC64_TLS
8617 || r_type == R_PPC64_TLSGD
8618 || r_type == R_PPC64_TLSLD)
102890f0
AM		 8619 {
8620 toc_ref[toc_ref_index] = 1;
8621 continue;
8622 }
8623
8624 if (pass != 0 && toc_ref[toc_ref_index] == 0)
8625 continue;
8626
8627 tls_set = 0;
8628 tls_clear = 0;
8629 expecting_tls_get_addr = 2;
8630 break;
8631
8632 case R_PPC64_TPREL64:
8633 if (pass == 0
8634 || sec != toc
8635 || toc_ref == NULL
663a1470 8636 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
102890f0
AM		 8637 continue;
8638 if (ok_tprel)
8639 {
8640 /* IE -> LE */
8641 tls_set = TLS_EXPLICIT;
8642 tls_clear = TLS_TPREL;
8643 break;
8644 }
8645 continue;
8646
8647 case R_PPC64_DTPMOD64:
8648 if (pass == 0
8649 || sec != toc
8650 || toc_ref == NULL
663a1470 8651 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
102890f0
AM		 8652 continue;
8653 if (rel + 1 < relend
8654 && (rel[1].r_info
8655 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
8656 && rel[1].r_offset == rel->r_offset + 8)
8657 {
8658 if (ok_tprel)
8659 /* GD -> LE */
8660 tls_set = TLS_EXPLICIT | TLS_GD;
8661 else
8662 /* GD -> IE */
8663 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
8664 tls_clear = TLS_GD;
8665 }
8666 else
8667 {
8668 if (!is_local)
8669 continue;
8670
8671 /* LD -> LE */
8672 tls_set = TLS_EXPLICIT;
8673 tls_clear = TLS_LD;
8674 }
8675 break;
8676
8677 default:
8678 continue;
8679 }
8680
8681 if (pass == 0)
8682 {
727fc41e
AM		 8683 if (!expecting_tls_get_addr
8684 || !sec->has_tls_get_addr_call)
102890f0
AM		 8685 continue;
8686
3a71aa26
AM		 8687 if (rel + 1 < relend
8688 && branch_reloc_hash_match (ibfd, rel + 1,
8689 htab->tls_get_addr,
8690 htab->tls_get_addr_fd))
102890f0 8691 {
3a71aa26 8692 if (expecting_tls_get_addr == 2)
102890f0 8693 {
3a71aa26 8694 /* Check for toc tls entries. */
f961d9dd 8695 unsigned char *toc_tls;
3a71aa26
AM		 8696 int retval;
8697
8698 retval = get_tls_mask (&toc_tls, NULL, NULL,
8699 &locsyms,
8700 rel, ibfd);
8701 if (retval == 0)
8702 goto err_free_rel;
663a1470
AM		 8703 if (toc_tls != NULL)
8704 {
8705 if ((*toc_tls & (TLS_GD | TLS_LD)) != 0)
8706 found_tls_get_addr_arg = 1;
8707 if (retval > 1)
8708 toc_ref[toc_ref_index] = 1;
8709 }
102890f0 8710 }
3a71aa26 8711 continue;
102890f0
AM		 8712 }
8713
8714 if (expecting_tls_get_addr != 1)
8715 continue;
8716
8717 /* Uh oh, we didn't find the expected call. We
8718 could just mark this symbol to exclude it
8719 from tls optimization but it's safer to skip
663a1470 8720 the entire optimization. */
695344c0 8721 /* xgettext:c-format */
25f53a85 8722 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM		 8723 "TLS optimization disabled\n"),
8724 ibfd, sec, rel->r_offset);
8725 ret = TRUE;
8726 goto err_free_rel;
102890f0
AM		 8727 }
8728
85f7a9cb 8729 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
102890f0
AM		 8730 {
8731 struct plt_entry *ent;
8732 for (ent = htab->tls_get_addr->elf.plt.plist;
8733 ent != NULL;
8734 ent = ent->next)
8735 if (ent->addend == 0)
411e1bfb 8736 {
102890f0 8737 if (ent->plt.refcount > 0)
30038c59 8738 {
102890f0
AM		 8739 ent->plt.refcount -= 1;
8740 expecting_tls_get_addr = 0;
30038c59 8741 }
102890f0 8742 break;
411e1bfb 8743 }
102890f0 8744 }
411e1bfb 8745
85f7a9cb 8746 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
102890f0
AM		 8747 {
8748 struct plt_entry *ent;
8749 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
8750 ent != NULL;
8751 ent = ent->next)
8752 if (ent->addend == 0)
411e1bfb 8753 {
102890f0
AM		 8754 if (ent->plt.refcount > 0)
8755 ent->plt.refcount -= 1;
8756 break;
411e1bfb 8757 }
102890f0 8758 }
411e1bfb 8759
102890f0 8760 if (tls_clear == 0)
30038c59
AM		 8761 continue;
8762
102890f0
AM		 8763 if ((tls_set & TLS_EXPLICIT) == 0)
8764 {
8765 struct got_entry *ent;
411e1bfb 8766
102890f0
AM		 8767 /* Adjust got entry for this reloc. */
8768 if (h != NULL)
8769 ent = h->got.glist;
8770 else
8771 ent = elf_local_got_ents (ibfd)[r_symndx];
411e1bfb 8772
102890f0
AM		 8773 for (; ent != NULL; ent = ent->next)
8774 if (ent->addend == rel->r_addend
8775 && ent->owner == ibfd
8776 && ent->tls_type == tls_type)
8777 break;
8778 if (ent == NULL)
8779 abort ();
411e1bfb 8780
102890f0
AM		 8781 if (tls_set == 0)
8782 {
8783 /* We managed to get rid of a got entry. */
8784 if (ent->got.refcount > 0)
8785 ent->got.refcount -= 1;
8786 }
8787 }
8788 else
8789 {
8790 /* If we got rid of a DTPMOD/DTPREL reloc pair then
8791 we'll lose one or two dyn relocs. */
8792 if (!dec_dynrel_count (rel->r_info, sec, info,
19e08130 8793 NULL, h, sym))
102890f0 8794 return FALSE;
411e1bfb 8795
102890f0
AM		 8796 if (tls_set == (TLS_EXPLICIT | TLS_GD))
8797 {
8798 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
19e08130 8799 NULL, h, sym))
102890f0
AM		 8800 return FALSE;
8801 }
8802 }
411e1bfb 8803
102890f0
AM		 8804 *tls_mask |= tls_set;
8805 *tls_mask &= ~tls_clear;
8806 }
8c1d1bb8 8807
102890f0
AM		 8808 if (elf_section_data (sec)->relocs != relstart)
8809 free (relstart);
8810 }
411e1bfb 8811
663a1470
AM		 8812 if (locsyms != NULL
8813 && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms))
8814 {
8815 if (!info->keep_memory)
8816 free (locsyms);
8817 else
8818 elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms;
8819 }
8820 }
411e1bfb 8821
663a1470
AM		 8822 if (toc_ref != NULL)
8823 free (toc_ref);
b34976b6 8824 return TRUE;
1e2f5b6e 8825}
b34976b6 8826
c5614fa4
AM		 8827/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
8828 the values of any global symbols in a toc section that has been
8829 edited. Globals in toc sections should be a rarity, so this function
8830 sets a flag if any are found in toc sections other than the one just
8831 edited, so that futher hash table traversals can be avoided. */
8832
8833struct adjust_toc_info
8834{
8835 asection *toc;
8836 unsigned long *skip;
8837 bfd_boolean global_toc_syms;
8838};
8839
ba761f19
AM		 8840enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 };
8841
c5614fa4
AM		 8842static bfd_boolean
8843adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
8844{
8845 struct ppc_link_hash_entry *eh;
8846 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
854b41e7 8847 unsigned long i;
c5614fa4 8848
c5614fa4
AM		 8849 if (h->root.type != bfd_link_hash_defined
8850 && h->root.type != bfd_link_hash_defweak)
8851 return TRUE;
8852
8853 eh = (struct ppc_link_hash_entry *) h;
8854 if (eh->adjust_done)
8855 return TRUE;
8856
8857 if (eh->elf.root.u.def.section == toc_inf->toc)
8858 {
854b41e7
AM		 8859 if (eh->elf.root.u.def.value > toc_inf->toc->rawsize)
8860 i = toc_inf->toc->rawsize >> 3;
c5614fa4 8861 else
854b41e7
AM		 8862 i = eh->elf.root.u.def.value >> 3;
8863
ba761f19 8864 if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0)
c5614fa4 8865 {
4eca0228 8866 _bfd_error_handler
854b41e7
AM		 8867 (_("%s defined on removed toc entry"), eh->elf.root.root.string);
8868 do
8869 ++i;
ba761f19 8870 while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0);
854b41e7 8871 eh->elf.root.u.def.value = (bfd_vma) i << 3;
c5614fa4 8872 }
854b41e7
AM		 8873
8874 eh->elf.root.u.def.value -= toc_inf->skip[i];
c5614fa4
AM		 8875 eh->adjust_done = 1;
8876 }
8877 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
8878 toc_inf->global_toc_syms = TRUE;
8879
8880 return TRUE;
8881}
8882
560c8763
AM		 8883/* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */
8884
8885static bfd_boolean
8886ok_lo_toc_insn (unsigned int insn)
8887{
8888 return ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8889 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8890 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8891 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8892 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8893 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8894 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8895 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8896 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8897 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8898 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8899 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8900 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8901 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8902 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8903 && (insn & 3) != 1)
8904 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8905 && ((insn & 3) == 0 || (insn & 3) == 3))
8906 || (insn & (0x3f << 26)) == 12u << 26 /* addic */);
8907}
8908
c5614fa4
AM		 8909/* Examine all relocs referencing .toc sections in order to remove
8910 unused .toc entries. */
8911
8912bfd_boolean
33c0ec9d 8913ppc64_elf_edit_toc (struct bfd_link_info *info)
c5614fa4
AM		 8914{
8915 bfd *ibfd;
8916 struct adjust_toc_info toc_inf;
67f0cbdb 8917 struct ppc_link_hash_table *htab = ppc_hash_table (info);
c5614fa4 8918
67f0cbdb 8919 htab->do_toc_opt = 1;
c5614fa4 8920 toc_inf.global_toc_syms = TRUE;
c72f2fb2 8921 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
c5614fa4
AM		 8922 {
8923 asection *toc, *sec;
8924 Elf_Internal_Shdr *symtab_hdr;
8925 Elf_Internal_Sym *local_syms;
425b145b 8926 Elf_Internal_Rela *relstart, *rel, *toc_relocs;
c5614fa4
AM		 8927 unsigned long *skip, *drop;
8928 unsigned char *used;
8929 unsigned char *keep, last, some_unused;
8930
854b41e7
AM		 8931 if (!is_ppc64_elf (ibfd))
8932 continue;
8933
c5614fa4
AM		 8934 toc = bfd_get_section_by_name (ibfd, ".toc");
8935 if (toc == NULL
92b7a70f 8936 || toc->size == 0
dbaa2011
AM		 8937 || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS
8938 || discarded_section (toc))
c5614fa4
AM		 8939 continue;
8940
425b145b 8941 toc_relocs = NULL;
c5614fa4 8942 local_syms = NULL;
0ffa91dd 8943 symtab_hdr = &elf_symtab_hdr (ibfd);
c5614fa4
AM		 8944
8945 /* Look at sections dropped from the final link. */
8946 skip = NULL;
8947 relstart = NULL;
8948 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8949 {
8950 if (sec->reloc_count == 0
dbaa2011 8951 || !discarded_section (sec)
c5614fa4
AM		 8952 || get_opd_info (sec)
8953 || (sec->flags & SEC_ALLOC) == 0
8954 || (sec->flags & SEC_DEBUGGING) != 0)
8955 continue;
8956
8957 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
8958 if (relstart == NULL)
8959 goto error_ret;
8960
8961 /* Run through the relocs to see which toc entries might be
8962 unused. */
8963 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8964 {
8965 enum elf_ppc64_reloc_type r_type;
8966 unsigned long r_symndx;
8967 asection *sym_sec;
8968 struct elf_link_hash_entry *h;
8969 Elf_Internal_Sym *sym;
8970 bfd_vma val;
8971
8972 r_type = ELF64_R_TYPE (rel->r_info);
8973 switch (r_type)
8974 {
8975 default:
8976 continue;
8977
8978 case R_PPC64_TOC16:
8979 case R_PPC64_TOC16_LO:
8980 case R_PPC64_TOC16_HI:
8981 case R_PPC64_TOC16_HA:
8982 case R_PPC64_TOC16_DS:
8983 case R_PPC64_TOC16_LO_DS:
8984 break;
8985 }
8986
8987 r_symndx = ELF64_R_SYM (rel->r_info);
8988 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8989 r_symndx, ibfd))
8990 goto error_ret;
8991
8992 if (sym_sec != toc)
8993 continue;
8994
8995 if (h != NULL)
8996 val = h->root.u.def.value;
8997 else
8998 val = sym->st_value;
8999 val += rel->r_addend;
9000
9001 if (val >= toc->size)
9002 continue;
9003
9004 /* Anything in the toc ought to be aligned to 8 bytes.
9005 If not, don't mark as unused. */
9006 if (val & 7)
9007 continue;
9008
9009 if (skip == NULL)
9010 {
854b41e7 9011 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
c5614fa4
AM		 9012 if (skip == NULL)
9013 goto error_ret;
9014 }
9015
ba761f19 9016 skip[val >> 3] = ref_from_discarded;
c5614fa4
AM		 9017 }
9018
9019 if (elf_section_data (sec)->relocs != relstart)
9020 free (relstart);
9021 }
9022
ba761f19
AM		 9023 /* For largetoc loads of address constants, we can convert
9024 . addis rx,2,addr@got@ha
9025 . ld ry,addr@got@l(rx)
9026 to
9027 . addis rx,2,addr@toc@ha
9028 . addi ry,rx,addr@toc@l
9029 when addr is within 2G of the toc pointer. This then means
9030 that the word storing "addr" in the toc is no longer needed. */
68ffbac6 9031
ba761f19
AM		 9032 if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc
9033 && toc->output_section->rawsize < (bfd_vma) 1 << 31
9034 && toc->reloc_count != 0)
9035 {
9036 /* Read toc relocs. */
425b145b
AM		 9037 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
9038 info->keep_memory);
9039 if (toc_relocs == NULL)
ba761f19
AM		 9040 goto error_ret;
9041
425b145b 9042 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
ba761f19
AM		 9043 {
9044 enum elf_ppc64_reloc_type r_type;
9045 unsigned long r_symndx;
9046 asection *sym_sec;
9047 struct elf_link_hash_entry *h;
9048 Elf_Internal_Sym *sym;
9049 bfd_vma val, addr;
9050
9051 r_type = ELF64_R_TYPE (rel->r_info);
9052 if (r_type != R_PPC64_ADDR64)
9053 continue;
9054
9055 r_symndx = ELF64_R_SYM (rel->r_info);
9056 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9057 r_symndx, ibfd))
9058 goto error_ret;
9059
425b145b 9060 if (sym_sec == NULL
c27b8c2a 9061 || sym_sec->output_section == NULL
dbaa2011 9062 || discarded_section (sym_sec))
425b145b
AM		 9063 continue;
9064
afe397ea 9065 if (!SYMBOL_REFERENCES_LOCAL (info, h))
ba761f19
AM		 9066 continue;
9067
9068 if (h != NULL)
bddc25c9
AM		 9069 {
9070 if (h->type == STT_GNU_IFUNC)
9071 continue;
9072 val = h->root.u.def.value;
9073 }
ba761f19 9074 else
bddc25c9
AM		 9075 {
9076 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
9077 continue;
9078 val = sym->st_value;
9079 }
ba761f19
AM		 9080 val += rel->r_addend;
9081 val += sym_sec->output_section->vma + sym_sec->output_offset;
9082
9083 /* We don't yet know the exact toc pointer value, but we
9084 know it will be somewhere in the toc section. Don't
9085 optimize if the difference from any possible toc
9086 pointer is outside [ff..f80008000, 7fff7fff]. */
9087 addr = toc->output_section->vma + TOC_BASE_OFF;
9088 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
9089 continue;
9090
9091 addr = toc->output_section->vma + toc->output_section->rawsize;
9092 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
9093 continue;
9094
9095 if (skip == NULL)
9096 {
9097 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
9098 if (skip == NULL)
9099 goto error_ret;
9100 }
9101
9102 skip[rel->r_offset >> 3]
425b145b 9103 |= can_optimize | ((rel - toc_relocs) << 2);
ba761f19 9104 }
ba761f19
AM		 9105 }
9106
c5614fa4
AM		 9107 if (skip == NULL)
9108 continue;
9109
9110 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
9111 if (used == NULL)
9112 {
9113 error_ret:
9114 if (local_syms != NULL
9115 && symtab_hdr->contents != (unsigned char *) local_syms)
9116 free (local_syms);
9117 if (sec != NULL
9118 && relstart != NULL
9119 && elf_section_data (sec)->relocs != relstart)
9120 free (relstart);
425b145b
AM		 9121 if (toc_relocs != NULL
9122 && elf_section_data (toc)->relocs != toc_relocs)
9123 free (toc_relocs);
c5614fa4
AM		 9124 if (skip != NULL)
9125 free (skip);
9126 return FALSE;
9127 }
9128
30038c59
AM		 9129 /* Now check all kept sections that might reference the toc.
9130 Check the toc itself last. */
9131 for (sec = (ibfd->sections == toc && toc->next ? toc->next
9132 : ibfd->sections);
c5614fa4 9133 sec != NULL;
c5614fa4 9134 sec = (sec == toc ? NULL
c5614fa4 9135 : sec->next == NULL ? toc
30038c59 9136 : sec->next == toc && toc->next ? toc->next
c5614fa4
AM		 9137 : sec->next))
9138 {
9139 int repeat;
9140
9141 if (sec->reloc_count == 0
dbaa2011 9142 || discarded_section (sec)
c5614fa4
AM		 9143 || get_opd_info (sec)
9144 || (sec->flags & SEC_ALLOC) == 0
9145 || (sec->flags & SEC_DEBUGGING) != 0)
9146 continue;
9147
854b41e7
AM		 9148 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
9149 info->keep_memory);
c5614fa4 9150 if (relstart == NULL)
2915c55b
JK		 9151 {
9152 free (used);
9153 goto error_ret;
9154 }
c5614fa4
AM		 9155
9156 /* Mark toc entries referenced as used. */
c5614fa4 9157 do
d4f1ee75
AM		 9158 {
9159 repeat = 0;
9160 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
9161 {
9162 enum elf_ppc64_reloc_type r_type;
9163 unsigned long r_symndx;
9164 asection *sym_sec;
9165 struct elf_link_hash_entry *h;
9166 Elf_Internal_Sym *sym;
9167 bfd_vma val;
9168 enum {no_check, check_lo, check_ha} insn_check;
98528052 9169
d4f1ee75
AM		 9170 r_type = ELF64_R_TYPE (rel->r_info);
9171 switch (r_type)
9172 {
9173 default:
9174 insn_check = no_check;
9175 break;
98528052 9176
d4f1ee75
AM		 9177 case R_PPC64_GOT_TLSLD16_HA:
9178 case R_PPC64_GOT_TLSGD16_HA:
9179 case R_PPC64_GOT_TPREL16_HA:
9180 case R_PPC64_GOT_DTPREL16_HA:
9181 case R_PPC64_GOT16_HA:
9182 case R_PPC64_TOC16_HA:
9183 insn_check = check_ha;
9184 break;
98528052 9185
d4f1ee75
AM		 9186 case R_PPC64_GOT_TLSLD16_LO:
9187 case R_PPC64_GOT_TLSGD16_LO:
9188 case R_PPC64_GOT_TPREL16_LO_DS:
9189 case R_PPC64_GOT_DTPREL16_LO_DS:
9190 case R_PPC64_GOT16_LO:
9191 case R_PPC64_GOT16_LO_DS:
9192 case R_PPC64_TOC16_LO:
9193 case R_PPC64_TOC16_LO_DS:
9194 insn_check = check_lo;
9195 break;
9196 }
560c8763 9197
d4f1ee75
AM		 9198 if (insn_check != no_check)
9199 {
9200 bfd_vma off = rel->r_offset & ~3;
9201 unsigned char buf[4];
9202 unsigned int insn;
c5614fa4 9203
d4f1ee75
AM		 9204 if (!bfd_get_section_contents (ibfd, sec, buf, off, 4))
9205 {
9206 free (used);
9207 goto error_ret;
9208 }
9209 insn = bfd_get_32 (ibfd, buf);
9210 if (insn_check == check_lo
9211 ? !ok_lo_toc_insn (insn)
9212 : ((insn & ((0x3f << 26) | 0x1f << 16))
9213 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */))
9214 {
9215 char str[12];
9216
9217 ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1;
9218 sprintf (str, "%#08x", insn);
9219 info->callbacks->einfo
695344c0 9220 /* xgettext:c-format */
d4f1ee75
AM		 9221 (_("%P: %H: toc optimization is not supported for"
9222 " %s instruction.\n"),
9223 ibfd, sec, rel->r_offset & ~3, str);
9224 }
9225 }
c5614fa4 9226
d4f1ee75
AM		 9227 switch (r_type)
9228 {
9229 case R_PPC64_TOC16:
9230 case R_PPC64_TOC16_LO:
9231 case R_PPC64_TOC16_HI:
9232 case R_PPC64_TOC16_HA:
9233 case R_PPC64_TOC16_DS:
9234 case R_PPC64_TOC16_LO_DS:
9235 /* In case we're taking addresses of toc entries. */
9236 case R_PPC64_ADDR64:
9237 break;
c5614fa4 9238
d4f1ee75
AM		 9239 default:
9240 continue;
9241 }
c5614fa4 9242
d4f1ee75
AM		 9243 r_symndx = ELF64_R_SYM (rel->r_info);
9244 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9245 r_symndx, ibfd))
9246 {
9247 free (used);
9248 goto error_ret;
9249 }
c5614fa4 9250
d4f1ee75
AM		 9251 if (sym_sec != toc)
9252 continue;
c5614fa4 9253
d4f1ee75
AM		 9254 if (h != NULL)
9255 val = h->root.u.def.value;
9256 else
9257 val = sym->st_value;
9258 val += rel->r_addend;
ba761f19 9259
d4f1ee75
AM		 9260 if (val >= toc->size)
9261 continue;
ba761f19 9262
d4f1ee75
AM		 9263 if ((skip[val >> 3] & can_optimize) != 0)
9264 {
9265 bfd_vma off;
9266 unsigned char opc;
9267
9268 switch (r_type)
9269 {
9270 case R_PPC64_TOC16_HA:
ba761f19 9271 break;
ba761f19 9272
d4f1ee75
AM		 9273 case R_PPC64_TOC16_LO_DS:
9274 off = rel->r_offset;
9275 off += (bfd_big_endian (ibfd) ? -2 : 3);
9276 if (!bfd_get_section_contents (ibfd, sec, &opc,
9277 off, 1))
9278 {
9279 free (used);
9280 goto error_ret;
9281 }
9282 if ((opc & (0x3f << 2)) == (58u << 2))
9283 break;
1a0670f3 9284 /* Fall through. */
ba761f19 9285
d4f1ee75
AM		 9286 default:
9287 /* Wrong sort of reloc, or not a ld. We may
9288 as well clear ref_from_discarded too. */
9289 skip[val >> 3] = 0;
9290 }
9291 }
9292
9293 if (sec != toc)
9294 used[val >> 3] = 1;
9295 /* For the toc section, we only mark as used if this
9296 entry itself isn't unused. */
9297 else if ((used[rel->r_offset >> 3]
9298 || !(skip[rel->r_offset >> 3] & ref_from_discarded))
9299 && !used[val >> 3])
9300 {
9301 /* Do all the relocs again, to catch reference
9302 chains. */
9303 repeat = 1;
9304 used[val >> 3] = 1;
9305 }
9306 }
9307 }
c5614fa4 9308 while (repeat);
854b41e7
AM		 9309
9310 if (elf_section_data (sec)->relocs != relstart)
9311 free (relstart);
c5614fa4
AM		 9312 }
9313
9314 /* Merge the used and skip arrays. Assume that TOC
9315 doublewords not appearing as either used or unused belong
9316 to to an entry more than one doubleword in size. */
9317 for (drop = skip, keep = used, last = 0, some_unused = 0;
9318 drop < skip + (toc->size + 7) / 8;
9319 ++drop, ++keep)
9320 {
9321 if (*keep)
9322 {
ba761f19
AM		 9323 *drop &= ~ref_from_discarded;
9324 if ((*drop & can_optimize) != 0)
9325 some_unused = 1;
c5614fa4
AM		 9326 last = 0;
9327 }
b140b010 9328 else if ((*drop & ref_from_discarded) != 0)
c5614fa4
AM		 9329 {
9330 some_unused = 1;
ba761f19 9331 last = ref_from_discarded;
c5614fa4
AM		 9332 }
9333 else
9334 *drop = last;
9335 }
9336
9337 free (used);
9338
9339 if (some_unused)
9340 {
9341 bfd_byte *contents, *src;
9342 unsigned long off;
d62b3684 9343 Elf_Internal_Sym *sym;
ba761f19 9344 bfd_boolean local_toc_syms = FALSE;
c5614fa4
AM		 9345
9346 /* Shuffle the toc contents, and at the same time convert the
9347 skip array from booleans into offsets. */
9348 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
9349 goto error_ret;
9350
9351 elf_section_data (toc)->this_hdr.contents = contents;
9352
9353 for (src = contents, off = 0, drop = skip;
9354 src < contents + toc->size;
9355 src += 8, ++drop)
9356 {
ba761f19
AM		 9357 if ((*drop & (can_optimize | ref_from_discarded)) != 0)
9358 off += 8;
c5614fa4
AM		 9359 else if (off != 0)
9360 {
9361 *drop = off;
9362 memcpy (src - off, src, 8);
9363 }
9364 }
854b41e7 9365 *drop = off;
c5614fa4
AM		 9366 toc->rawsize = toc->size;
9367 toc->size = src - contents - off;
9368
ba761f19
AM		 9369 /* Adjust addends for relocs against the toc section sym,
9370 and optimize any accesses we can. */
c5614fa4
AM		 9371 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
9372 {
9373 if (sec->reloc_count == 0
dbaa2011 9374 || discarded_section (sec))
c5614fa4
AM		 9375 continue;
9376
9377 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
854b41e7 9378 info->keep_memory);
c5614fa4
AM		 9379 if (relstart == NULL)
9380 goto error_ret;
9381
9382 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
9383 {
9384 enum elf_ppc64_reloc_type r_type;
9385 unsigned long r_symndx;
9386 asection *sym_sec;
9387 struct elf_link_hash_entry *h;
854b41e7 9388 bfd_vma val;
c5614fa4
AM		 9389
9390 r_type = ELF64_R_TYPE (rel->r_info);
9391 switch (r_type)
9392 {
9393 default:
9394 continue;
9395
9396 case R_PPC64_TOC16:
9397 case R_PPC64_TOC16_LO:
9398 case R_PPC64_TOC16_HI:
9399 case R_PPC64_TOC16_HA:
9400 case R_PPC64_TOC16_DS:
9401 case R_PPC64_TOC16_LO_DS:
9402 case R_PPC64_ADDR64:
9403 break;
9404 }
9405
9406 r_symndx = ELF64_R_SYM (rel->r_info);
9407 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9408 r_symndx, ibfd))
9409 goto error_ret;
9410
ba761f19 9411 if (sym_sec != toc)
c5614fa4
AM		 9412 continue;
9413
ba761f19
AM		 9414 if (h != NULL)
9415 val = h->root.u.def.value;
9416 else
9417 {
9418 val = sym->st_value;
9419 if (val != 0)
9420 local_toc_syms = TRUE;
9421 }
9422
9423 val += rel->r_addend;
854b41e7
AM		 9424
9425 if (val > toc->rawsize)
9426 val = toc->rawsize;
ba761f19
AM		 9427 else if ((skip[val >> 3] & ref_from_discarded) != 0)
9428 continue;
9429 else if ((skip[val >> 3] & can_optimize) != 0)
9430 {
9431 Elf_Internal_Rela *tocrel
425b145b 9432 = toc_relocs + (skip[val >> 3] >> 2);
ba761f19
AM		 9433 unsigned long tsym = ELF64_R_SYM (tocrel->r_info);
9434
9435 switch (r_type)
9436 {
9437 case R_PPC64_TOC16_HA:
9438 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA);
9439 break;
9440
9441 case R_PPC64_TOC16_LO_DS:
9442 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT);
9443 break;
9444
9445 default:
28942f62
AM		 9446 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
9447 ppc_howto_init ();
b140b010 9448 info->callbacks->einfo
695344c0 9449 /* xgettext:c-format */
bc30df16 9450 (_("%P: %H: %s references "
b140b010
AM		 9451 "optimized away TOC entry\n"),
9452 ibfd, sec, rel->r_offset,
9453 ppc64_elf_howto_table[r_type]->name);
9454 bfd_set_error (bfd_error_bad_value);
9455 goto error_ret;
ba761f19
AM		 9456 }
9457 rel->r_addend = tocrel->r_addend;
9458 elf_section_data (sec)->relocs = relstart;
9459 continue;
9460 }
9461
9462 if (h != NULL || sym->st_value != 0)
9463 continue;
854b41e7
AM		 9464
9465 rel->r_addend -= skip[val >> 3];
9466 elf_section_data (sec)->relocs = relstart;
c5614fa4 9467 }
854b41e7
AM		 9468
9469 if (elf_section_data (sec)->relocs != relstart)
9470 free (relstart);
c5614fa4
AM		 9471 }
9472
9473 /* We shouldn't have local or global symbols defined in the TOC,
9474 but handle them anyway. */
df22d223
AM		 9475 if (local_syms != NULL)
9476 for (sym = local_syms;
9477 sym < local_syms + symtab_hdr->sh_info;
9478 ++sym)
9479 if (sym->st_value != 0
9480 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
9481 {
9482 unsigned long i;
854b41e7 9483
df22d223
AM		 9484 if (sym->st_value > toc->rawsize)
9485 i = toc->rawsize >> 3;
9486 else
9487 i = sym->st_value >> 3;
854b41e7 9488
df22d223
AM		 9489 if ((skip[i] & (ref_from_discarded | can_optimize)) != 0)
9490 {
9491 if (local_toc_syms)
4eca0228 9492 _bfd_error_handler
df22d223
AM		 9493 (_("%s defined on removed toc entry"),
9494 bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL));
9495 do
9496 ++i;
9497 while ((skip[i] & (ref_from_discarded | can_optimize)));
9498 sym->st_value = (bfd_vma) i << 3;
9499 }
d62b3684 9500
df22d223
AM		 9501 sym->st_value -= skip[i];
9502 symtab_hdr->contents = (unsigned char *) local_syms;
9503 }
c5614fa4 9504
854b41e7 9505 /* Adjust any global syms defined in this toc input section. */
c5614fa4
AM		 9506 if (toc_inf.global_toc_syms)
9507 {
9508 toc_inf.toc = toc;
9509 toc_inf.skip = skip;
9510 toc_inf.global_toc_syms = FALSE;
9511 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
9512 &toc_inf);
9513 }
854b41e7
AM		 9514
9515 if (toc->reloc_count != 0)
9516 {
d4730f92 9517 Elf_Internal_Shdr *rel_hdr;
854b41e7
AM		 9518 Elf_Internal_Rela *wrel;
9519 bfd_size_type sz;
9520
854b41e7 9521 /* Remove unused toc relocs, and adjust those we keep. */
28be611c
AM		 9522 if (toc_relocs == NULL)
9523 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
9524 info->keep_memory);
9525 if (toc_relocs == NULL)
9526 goto error_ret;
9527
425b145b
AM		 9528 wrel = toc_relocs;
9529 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
ba761f19
AM		 9530 if ((skip[rel->r_offset >> 3]
9531 & (ref_from_discarded | can_optimize)) == 0)
854b41e7
AM		 9532 {
9533 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
9534 wrel->r_info = rel->r_info;
9535 wrel->r_addend = rel->r_addend;
9536 ++wrel;
9537 }
9538 else if (!dec_dynrel_count (rel->r_info, toc, info,
9539 &local_syms, NULL, NULL))
9540 goto error_ret;
9541
425b145b
AM		 9542 elf_section_data (toc)->relocs = toc_relocs;
9543 toc->reloc_count = wrel - toc_relocs;
d4730f92
BS		 9544 rel_hdr = _bfd_elf_single_rel_hdr (toc);
9545 sz = rel_hdr->sh_entsize;
9546 rel_hdr->sh_size = toc->reloc_count * sz;
854b41e7 9547 }
c5614fa4 9548 }
28be611c
AM		 9549 else if (toc_relocs != NULL
9550 && elf_section_data (toc)->relocs != toc_relocs)
425b145b 9551 free (toc_relocs);
c5614fa4
AM		 9552
9553 if (local_syms != NULL
9554 && symtab_hdr->contents != (unsigned char *) local_syms)
9555 {
9556 if (!info->keep_memory)
9557 free (local_syms);
9558 else
9559 symtab_hdr->contents = (unsigned char *) local_syms;
9560 }
9561 free (skip);
9562 }
9563
9564 return TRUE;
9565}
9566
1bbe0902
AM		 9567/* Return true iff input section I references the TOC using
9568 instructions limited to +/-32k offsets. */
9569
9570bfd_boolean
9571ppc64_elf_has_small_toc_reloc (asection *i)
9572{
9573 return (is_ppc64_elf (i->owner)
9574 && ppc64_elf_tdata (i->owner)->has_small_toc_reloc);
9575}
9576
927be08e
AM		 9577/* Allocate space for one GOT entry. */
9578
9579static void
9580allocate_got (struct elf_link_hash_entry *h,
9581 struct bfd_link_info *info,
9582 struct got_entry *gent)
9583{
9584 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9585 bfd_boolean dyn;
9586 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
9587 int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)
9588 ? 16 : 8);
9589 int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD
9590 ? 2 : 1) * sizeof (Elf64_External_Rela);
9591 asection *got = ppc64_elf_tdata (gent->owner)->got;
9592
9593 gent->got.offset = got->size;
9594 got->size += entsize;
9595
9596 dyn = htab->elf.dynamic_sections_created;
19e08130 9597 if (h->type == STT_GNU_IFUNC)
927be08e 9598 {
33e44f2e 9599 htab->elf.irelplt->size += rentsize;
19e08130 9600 htab->got_reli_size += rentsize;
927be08e 9601 }
0e1862bb 9602 else if ((bfd_link_pic (info)
19e08130
AM		 9603 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
9604 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
9605 || h->root.type != bfd_link_hash_undefweak))
927be08e 9606 {
19e08130 9607 asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
927be08e 9608 relgot->size += rentsize;
927be08e
AM		 9609 }
9610}
9611
7865406b
AM		 9612/* This function merges got entries in the same toc group. */
9613
9614static void
9615merge_got_entries (struct got_entry **pent)
9616{
9617 struct got_entry *ent, *ent2;
9618
9619 for (ent = *pent; ent != NULL; ent = ent->next)
9620 if (!ent->is_indirect)
9621 for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next)
9622 if (!ent2->is_indirect
9623 && ent2->addend == ent->addend
9624 && ent2->tls_type == ent->tls_type
9625 && elf_gp (ent2->owner) == elf_gp (ent->owner))
9626 {
9627 ent2->is_indirect = TRUE;
9628 ent2->got.ent = ent;
9629 }
9630}
9631
65f38f15
AM		 9632/* Allocate space in .plt, .got and associated reloc sections for
9633 dynamic relocs. */
5bd4f169 9634
b34976b6 9635static bfd_boolean
4ce794b7 9636allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 9637{
65f38f15
AM		 9638 struct bfd_link_info *info;
9639 struct ppc_link_hash_table *htab;
5bd4f169 9640 asection *s;
65f38f15 9641 struct ppc_link_hash_entry *eh;
0b8bcf0d 9642 struct got_entry **pgent, *gent;
5bd4f169 9643
e92d460e 9644 if (h->root.type == bfd_link_hash_indirect)
b34976b6 9645 return TRUE;
5bd4f169 9646
65f38f15
AM		 9647 info = (struct bfd_link_info *) inf;
9648 htab = ppc_hash_table (info);
4dfe6ac6
NC		 9649 if (htab == NULL)
9650 return FALSE;
5bd4f169 9651
951fd09b
AM		 9652 eh = (struct ppc_link_hash_entry *) h;
9653 /* Run through the TLS GD got entries first if we're changing them
9654 to TPREL. */
e7b938ca 9655 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 9656 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9657 if (gent->got.refcount > 0
9658 && (gent->tls_type & TLS_GD) != 0)
9659 {
9660 /* This was a GD entry that has been converted to TPREL. If
9661 there happens to be a TPREL entry we can use that one. */
9662 struct got_entry *ent;
9663 for (ent = h->got.glist; ent != NULL; ent = ent->next)
9664 if (ent->got.refcount > 0
9665 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 9666 && ent->addend == gent->addend
9667 && ent->owner == gent->owner)
951fd09b
AM		 9668 {
9669 gent->got.refcount = 0;
9670 break;
9671 }
9672
9673 /* If not, then we'll be using our own TPREL entry. */
9674 if (gent->got.refcount != 0)
9675 gent->tls_type = TLS_TLS | TLS_TPREL;
9676 }
9677
7865406b
AM		 9678 /* Remove any list entry that won't generate a word in the GOT before
9679 we call merge_got_entries. Otherwise we risk merging to empty
9680 entries. */
0b8bcf0d
AM		 9681 pgent = &h->got.glist;
9682 while ((gent = *pgent) != NULL)
411e1bfb 9683 if (gent->got.refcount > 0)
7865406b
AM		 9684 {
9685 if ((gent->tls_type & TLS_LD) != 0
9686 && !h->def_dynamic)
9687 {
9688 ppc64_tlsld_got (gent->owner)->got.refcount += 1;
9689 *pgent = gent->next;
9690 }
9691 else
9692 pgent = &gent->next;
9693 }
9694 else
9695 *pgent = gent->next;
9696
9697 if (!htab->do_multi_toc)
9698 merge_got_entries (&h->got.glist);
9699
9700 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9701 if (!gent->is_indirect)
411e1bfb
AM		 9702 {
9703 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 9704 Undefined weak syms won't yet be marked as dynamic,
9705 nor will all TLS symbols. */
411e1bfb 9706 if (h->dynindx == -1
b099ab9f 9707 && !h->forced_local
25f23106 9708 && h->type != STT_GNU_IFUNC
b099ab9f 9709 && htab->elf.dynamic_sections_created)
411e1bfb 9710 {
c152c796 9711 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 9712 return FALSE;
9713 }
65f38f15 9714
0c8d6e5c 9715 if (!is_ppc64_elf (gent->owner))
927be08e 9716 abort ();
0ffa91dd 9717
927be08e 9718 allocate_got (h, info, gent);
411e1bfb 9719 }
65f38f15 9720
8a2058b5
AM		 9721 if (!htab->elf.dynamic_sections_created
9722 && h->type != STT_GNU_IFUNC)
9723 eh->dyn_relocs = NULL;
9724
9725 if (eh->dyn_relocs != NULL)
65f38f15 9726 {
8a2058b5
AM		 9727 struct elf_dyn_relocs *p, **pp;
9728
57e7d118
AM		 9729 /* In the shared -Bsymbolic case, discard space allocated for
9730 dynamic pc-relative relocs against symbols which turn out to
9731 be defined in regular objects. For the normal shared case,
9732 discard space for relocs that have become local due to symbol
9733 visibility changes. */
9734
9735 if (bfd_link_pic (info))
65f38f15 9736 {
57e7d118
AM		 9737 /* Relocs that use pc_count are those that appear on a call
9738 insn, or certain REL relocs (see must_be_dyn_reloc) that
9739 can be generated via assembly. We want calls to
9740 protected symbols to resolve directly to the function
9741 rather than going via the plt. If people want function
9742 pointer comparisons to work as expected then they should
9743 avoid writing weird assembly. */
9744 if (SYMBOL_CALLS_LOCAL (info, h))
9745 {
57e7d118
AM		 9746 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
9747 {
9748 p->count -= p->pc_count;
9749 p->pc_count = 0;
9750 if (p->count == 0)
9751 *pp = p->next;
9752 else
9753 pp = &p->next;
9754 }
9755 }
65f38f15 9756
57e7d118
AM		 9757 /* Also discard relocs on undefined weak syms with
9758 non-default visibility. */
9759 if (eh->dyn_relocs != NULL
9760 && h->root.type == bfd_link_hash_undefweak)
5bd4f169 9761 {
57e7d118
AM		 9762 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
9763 eh->dyn_relocs = NULL;
9764
9765 /* Make sure this symbol is output as a dynamic symbol.
9766 Undefined weak syms won't yet be marked as dynamic. */
9767 else if (h->dynindx == -1
9768 && !h->forced_local)
9769 {
9770 if (! bfd_elf_link_record_dynamic_symbol (info, h))
9771 return FALSE;
9772 }
5bd4f169 9773 }
65f38f15 9774 }
57e7d118 9775 else if (h->type == STT_GNU_IFUNC)
dfbb6ac9 9776 {
8a2058b5
AM		 9777 /* A plt entry is always created when making direct calls to
9778 an ifunc, even when building a static executable, but
9779 that doesn't cover all cases. We may have only an ifunc
9780 initialised function pointer for a given ifunc symbol.
9781
9782 For ELFv2, dynamic relocations are not required when
9783 generating a global entry PLT stub. */
9784 if (abiversion (info->output_bfd) >= 2)
9785 {
9786 if (global_entry_stub (h))
9787 eh->dyn_relocs = NULL;
9788 }
9789
9790 /* For ELFv1 we have function descriptors. Descriptors need
9791 to be treated like PLT entries and thus have dynamic
9792 relocations. One exception is when the function
9793 descriptor is copied into .dynbss (which should only
9794 happen with ancient versions of gcc). */
9795 else if (h->needs_copy)
dfbb6ac9 9796 eh->dyn_relocs = NULL;
57e7d118
AM		 9797 }
9798 else if (ELIMINATE_COPY_RELOCS)
9799 {
8a2058b5 9800 /* For the non-pic case, discard space for relocs against
57e7d118
AM		 9801 symbols which turn out to need copy relocs or are not
9802 dynamic. */
dfbb6ac9 9803
8a2058b5
AM		 9804 /* First make sure this symbol is output as a dynamic symbol.
9805 Undefined weak syms won't yet be marked as dynamic. */
9806 if (h->root.type == bfd_link_hash_undefweak
9807 && !h->non_got_ref
9808 && !h->def_regular
9809 && h->dynindx == -1
9810 && !h->forced_local
9811 && !bfd_elf_link_record_dynamic_symbol (info, h))
9812 return FALSE;
57e7d118 9813
8a2058b5
AM		 9814 if (h->non_got_ref
9815 || h->def_regular
9816 || h->dynindx == -1)
9817 eh->dyn_relocs = NULL;
57e7d118
AM		 9818 }
9819
9820 /* Finally, allocate space. */
9821 for (p = eh->dyn_relocs; p != NULL; p = p->next)
9822 {
9823 asection *sreloc = elf_section_data (p->sec)->sreloc;
9824 if (eh->elf.type == STT_GNU_IFUNC)
9825 sreloc = htab->elf.irelplt;
9826 sreloc->size += p->count * sizeof (Elf64_External_Rela);
dfbb6ac9 9827 }
65f38f15 9828 }
57e7d118
AM		 9829
9830 if ((htab->elf.dynamic_sections_created
9831 && h->dynindx != -1
9832 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
9833 || h->type == STT_GNU_IFUNC)
65f38f15 9834 {
57e7d118
AM		 9835 struct plt_entry *pent;
9836 bfd_boolean doneone = FALSE;
9837 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9838 if (pent->plt.refcount > 0)
9839 {
9840 if (!htab->elf.dynamic_sections_created
9841 || h->dynindx == -1)
9842 {
9843 s = htab->elf.iplt;
9844 pent->plt.offset = s->size;
9845 s->size += PLT_ENTRY_SIZE (htab);
9846 s = htab->elf.irelplt;
9847 }
9848 else
9849 {
9850 /* If this is the first .plt entry, make room for the special
9851 first entry. */
9852 s = htab->elf.splt;
9853 if (s->size == 0)
9854 s->size += PLT_INITIAL_ENTRY_SIZE (htab);
65f38f15 9855
57e7d118 9856 pent->plt.offset = s->size;
65f38f15 9857
57e7d118
AM		 9858 /* Make room for this entry. */
9859 s->size += PLT_ENTRY_SIZE (htab);
65f38f15 9860
57e7d118
AM		 9861 /* Make room for the .glink code. */
9862 s = htab->glink;
9863 if (s->size == 0)
9864 s->size += GLINK_CALL_STUB_SIZE;
9865 if (htab->opd_abi)
9866 {
9867 /* We need bigger stubs past index 32767. */
9868 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
9869 s->size += 4;
9870 s->size += 2*4;
9871 }
9872 else
9873 s->size += 4;
65f38f15 9874
57e7d118
AM		 9875 /* We also need to make an entry in the .rela.plt section. */
9876 s = htab->elf.srelplt;
9877 }
9878 s->size += sizeof (Elf64_External_Rela);
9879 doneone = TRUE;
9880 }
9881 else
9882 pent->plt.offset = (bfd_vma) -1;
9883 if (!doneone)
9884 {
9885 h->plt.plist = NULL;
9886 h->needs_plt = 0;
9887 }
65f38f15 9888 }
57e7d118 9889 else
65f38f15 9890 {
57e7d118
AM		 9891 h->plt.plist = NULL;
9892 h->needs_plt = 0;
65f38f15
AM		 9893 }
9894
b34976b6 9895 return TRUE;
65f38f15
AM		 9896}
9897
a345bc8d
AM		 9898/* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections
9899 to set up space for global entry stubs. These are put in glink,
9900 after the branch table. */
65f38f15 9901
b34976b6 9902static bfd_boolean
a345bc8d 9903size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
65f38f15 9904{
a345bc8d
AM		 9905 struct bfd_link_info *info;
9906 struct ppc_link_hash_table *htab;
9907 struct plt_entry *pent;
9908 asection *s;
65f38f15 9909
a345bc8d
AM		 9910 if (h->root.type == bfd_link_hash_indirect)
9911 return TRUE;
65f38f15 9912
a345bc8d
AM		 9913 if (!h->pointer_equality_needed)
9914 return TRUE;
65f38f15 9915
a345bc8d
AM		 9916 if (h->def_regular)
9917 return TRUE;
65f38f15 9918
a345bc8d
AM		 9919 info = inf;
9920 htab = ppc_hash_table (info);
9921 if (htab == NULL)
9922 return FALSE;
9923
9924 s = htab->glink;
9925 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9926 if (pent->plt.offset != (bfd_vma) -1
9927 && pent->addend == 0)
9928 {
afe397ea
AM		 9929 /* For ELFv2, if this symbol is not defined in a regular file
9930 and we are not generating a shared library or pie, then we
9931 need to define the symbol in the executable on a call stub.
9932 This is to avoid text relocations. */
a345bc8d 9933 s->size = (s->size + 15) & -16;
8a2058b5 9934 h->root.type = bfd_link_hash_defined;
afe397ea
AM		 9935 h->root.u.def.section = s;
9936 h->root.u.def.value = s->size;
a345bc8d
AM		 9937 s->size += 16;
9938 break;
9939 }
9940 return TRUE;
9941}
9942
9943/* Set DF_TEXTREL if we find any dynamic relocs that apply to
9944 read-only sections. */
9945
9946static bfd_boolean
9947maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
9948{
9949 if (h->root.type == bfd_link_hash_indirect)
9950 return TRUE;
9951
9952 if (readonly_dynrelocs (h))
9953 {
9954 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
9955
9956 /* Not an error, just cut short the traversal. */
9957 return FALSE;
65f38f15 9958 }
b34976b6 9959 return TRUE;
65f38f15
AM		 9960}
9961
9962/* Set the sizes of the dynamic sections. */
9963
b34976b6 9964static bfd_boolean
ee67d69a 9965ppc64_elf_size_dynamic_sections (bfd *output_bfd,
4ce794b7 9966 struct bfd_link_info *info)
65f38f15
AM		 9967{
9968 struct ppc_link_hash_table *htab;
9969 bfd *dynobj;
9970 asection *s;
b34976b6 9971 bfd_boolean relocs;
65f38f15 9972 bfd *ibfd;
7865406b 9973 struct got_entry *first_tlsld;
65f38f15
AM		 9974
9975 htab = ppc_hash_table (info);
4dfe6ac6
NC		 9976 if (htab == NULL)
9977 return FALSE;
9978
65f38f15
AM		 9979 dynobj = htab->elf.dynobj;
9980 if (dynobj == NULL)
9981 abort ();
9982
9983 if (htab->elf.dynamic_sections_created)
9984 {
9985 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 9986 if (bfd_link_executable (info) && !info->nointerp)
65f38f15 9987 {
3d4d4302 9988 s = bfd_get_linker_section (dynobj, ".interp");
65f38f15
AM		 9989 if (s == NULL)
9990 abort ();
eea6121a 9991 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 9992 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
9993 }
9994 }
9995
9996 /* Set up .got offsets for local syms, and space for local dynamic
9997 relocs. */
c72f2fb2 9998 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
65f38f15 9999 {
411e1bfb
AM		 10000 struct got_entry **lgot_ents;
10001 struct got_entry **end_lgot_ents;
e054468f
AM		 10002 struct plt_entry **local_plt;
10003 struct plt_entry **end_local_plt;
f961d9dd 10004 unsigned char *lgot_masks;
65f38f15
AM		 10005 bfd_size_type locsymcount;
10006 Elf_Internal_Shdr *symtab_hdr;
65f38f15 10007
0c8d6e5c 10008 if (!is_ppc64_elf (ibfd))
65f38f15
AM		 10009 continue;
10010
10011 for (s = ibfd->sections; s != NULL; s = s->next)
10012 {
19e08130 10013 struct ppc_dyn_relocs *p;
65f38f15 10014
6edfbbad 10015 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
65f38f15 10016 {
ec338859
AM		 10017 if (!bfd_is_abs_section (p->sec)
10018 && bfd_is_abs_section (p->sec->output_section))
10019 {
10020 /* Input section has been discarded, either because
10021 it is a copy of a linkonce section or due to
10022 linker script /DISCARD/, so we'll be discarding
10023 the relocs too. */
10024 }
248866a8 10025 else if (p->count != 0)
ec338859 10026 {
19e08130
AM		 10027 asection *srel = elf_section_data (p->sec)->sreloc;
10028 if (p->ifunc)
33e44f2e 10029 srel = htab->elf.irelplt;
eea6121a 10030 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 10031 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
10032 info->flags |= DF_TEXTREL;
ec338859 10033 }
65f38f15
AM		 10034 }
10035 }
10036
411e1bfb
AM		 10037 lgot_ents = elf_local_got_ents (ibfd);
10038 if (!lgot_ents)
65f38f15
AM		 10039 continue;
10040
0ffa91dd 10041 symtab_hdr = &elf_symtab_hdr (ibfd);
65f38f15 10042 locsymcount = symtab_hdr->sh_info;
411e1bfb 10043 end_lgot_ents = lgot_ents + locsymcount;
e054468f
AM		 10044 local_plt = (struct plt_entry **) end_lgot_ents;
10045 end_local_plt = local_plt + locsymcount;
f961d9dd 10046 lgot_masks = (unsigned char *) end_local_plt;
e717da7e 10047 s = ppc64_elf_tdata (ibfd)->got;
e7b938ca 10048 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 10049 {
0b8bcf0d 10050 struct got_entry **pent, *ent;
411e1bfb 10051
0b8bcf0d
AM		 10052 pent = lgot_ents;
10053 while ((ent = *pent) != NULL)
411e1bfb
AM		 10054 if (ent->got.refcount > 0)
10055 {
e7b938ca 10056 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 10057 {
927be08e 10058 ppc64_tlsld_got (ibfd)->got.refcount += 1;
0b8bcf0d 10059 *pent = ent->next;
411e1bfb
AM		 10060 }
10061 else
10062 {
19e08130
AM		 10063 unsigned int ent_size = 8;
10064 unsigned int rel_size = sizeof (Elf64_External_Rela);
10065
eea6121a 10066 ent->got.offset = s->size;
e7b938ca 10067 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
927be08e 10068 {
19e08130
AM		 10069 ent_size *= 2;
10070 rel_size *= 2;
10071 }
10072 s->size += ent_size;
10073 if ((*lgot_masks & PLT_IFUNC) != 0)
10074 {
33e44f2e 10075 htab->elf.irelplt->size += rel_size;
19e08130
AM		 10076 htab->got_reli_size += rel_size;
10077 }
0e1862bb 10078 else if (bfd_link_pic (info))
19e08130
AM		 10079 {
10080 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
10081 srel->size += rel_size;
927be08e 10082 }
0b8bcf0d 10083 pent = &ent->next;
411e1bfb
AM		 10084 }
10085 }
10086 else
0b8bcf0d 10087 *pent = ent->next;
65f38f15 10088 }
e054468f
AM		 10089
10090 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
10091 for (; local_plt < end_local_plt; ++local_plt)
10092 {
10093 struct plt_entry *ent;
10094
10095 for (ent = *local_plt; ent != NULL; ent = ent->next)
10096 if (ent->plt.refcount > 0)
10097 {
33e44f2e 10098 s = htab->elf.iplt;
e054468f 10099 ent->plt.offset = s->size;
b9e5796b 10100 s->size += PLT_ENTRY_SIZE (htab);
e054468f 10101
33e44f2e 10102 htab->elf.irelplt->size += sizeof (Elf64_External_Rela);
e054468f
AM		 10103 }
10104 else
10105 ent->plt.offset = (bfd_vma) -1;
10106 }
65f38f15
AM		 10107 }
10108
10109 /* Allocate global sym .plt and .got entries, and space for global
10110 sym dynamic relocs. */
4ce794b7 10111 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
a345bc8d
AM		 10112 /* Stash the end of glink branch table. */
10113 if (htab->glink != NULL)
10114 htab->glink->rawsize = htab->glink->size;
10115
0e1862bb 10116 if (!htab->opd_abi && !bfd_link_pic (info))
a345bc8d 10117 elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info);
65f38f15 10118
7865406b 10119 first_tlsld = NULL;
c72f2fb2 10120 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
102890f0 10121 {
7865406b
AM		 10122 struct got_entry *ent;
10123
0c8d6e5c 10124 if (!is_ppc64_elf (ibfd))
102890f0
AM		 10125 continue;
10126
7865406b
AM		 10127 ent = ppc64_tlsld_got (ibfd);
10128 if (ent->got.refcount > 0)
102890f0 10129 {
7865406b 10130 if (!htab->do_multi_toc && first_tlsld != NULL)
102890f0 10131 {
7865406b
AM		 10132 ent->is_indirect = TRUE;
10133 ent->got.ent = first_tlsld;
10134 }
10135 else
10136 {
10137 if (first_tlsld == NULL)
10138 first_tlsld = ent;
10139 s = ppc64_elf_tdata (ibfd)->got;
10140 ent->got.offset = s->size;
10141 ent->owner = ibfd;
10142 s->size += 16;
0e1862bb 10143 if (bfd_link_pic (info))
7865406b
AM		 10144 {
10145 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
10146 srel->size += sizeof (Elf64_External_Rela);
10147 }
102890f0
AM		 10148 }
10149 }
10150 else
7865406b 10151 ent->got.offset = (bfd_vma) -1;
102890f0
AM		 10152 }
10153
65f38f15
AM		 10154 /* We now have determined the sizes of the various dynamic sections.
10155 Allocate memory for them. */
b34976b6 10156 relocs = FALSE;
65f38f15
AM		 10157 for (s = dynobj->sections; s != NULL; s = s->next)
10158 {
10159 if ((s->flags & SEC_LINKER_CREATED) == 0)
10160 continue;
10161
4ce794b7 10162 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 10163 /* These haven't been allocated yet; don't strip. */
10164 continue;
33e44f2e
AM		 10165 else if (s == htab->elf.sgot
10166 || s == htab->elf.splt
10167 || s == htab->elf.iplt
c456f082
AM		 10168 || s == htab->glink
10169 || s == htab->dynbss)
65f38f15
AM		 10170 {
10171 /* Strip this section if we don't need it; see the
10172 comment below. */
5bd4f169 10173 }
58d180e8
AM		 10174 else if (s == htab->glink_eh_frame)
10175 {
10176 if (!bfd_is_abs_section (s->output_section))
10177 /* Not sized yet. */
10178 continue;
10179 }
70cc837d 10180 else if (CONST_STRNEQ (s->name, ".rela"))
5bd4f169 10181 {
c456f082 10182 if (s->size != 0)
5bd4f169 10183 {
33e44f2e 10184 if (s != htab->elf.srelplt)
b34976b6 10185 relocs = TRUE;
5bd4f169
AM		 10186
10187 /* We use the reloc_count field as a counter if we need
10188 to copy relocs into the output file. */
10189 s->reloc_count = 0;
10190 }
10191 }
65f38f15 10192 else
5bd4f169
AM		 10193 {
10194 /* It's not one of our sections, so don't allocate space. */
10195 continue;
10196 }
10197
eea6121a 10198 if (s->size == 0)
5bd4f169 10199 {
c456f082
AM		 10200 /* If we don't need this section, strip it from the
10201 output file. This is mostly to handle .rela.bss and
10202 .rela.plt. We must create both sections in
10203 create_dynamic_sections, because they must be created
10204 before the linker maps input sections to output
10205 sections. The linker does that before
10206 adjust_dynamic_symbol is called, and it is that
10207 function which decides whether anything needs to go
10208 into these sections. */
8423293d 10209 s->flags |= SEC_EXCLUDE;
5bd4f169
AM		 10210 continue;
10211 }
10212
c456f082 10213 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM		 10214 continue;
10215
65f38f15
AM		 10216 /* Allocate memory for the section contents. We use bfd_zalloc
10217 here in case unused entries are not reclaimed before the
10218 section's contents are written out. This should not happen,
411e1bfb
AM		 10219 but this way if it does we get a R_PPC64_NONE reloc in .rela
10220 sections instead of garbage.
10221 We also rely on the section contents being zero when writing
10222 the GOT. */
eea6121a 10223 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 10224 if (s->contents == NULL)
b34976b6 10225 return FALSE;
5bd4f169
AM		 10226 }
10227
c72f2fb2 10228 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
e717da7e 10229 {
0c8d6e5c 10230 if (!is_ppc64_elf (ibfd))
7b53ace3
AM		 10231 continue;
10232
e717da7e 10233 s = ppc64_elf_tdata (ibfd)->got;
33e44f2e 10234 if (s != NULL && s != htab->elf.sgot)
e717da7e 10235 {
eea6121a 10236 if (s->size == 0)
8423293d 10237 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 10238 else
10239 {
eea6121a 10240 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 10241 if (s->contents == NULL)
10242 return FALSE;
10243 }
10244 }
10245 s = ppc64_elf_tdata (ibfd)->relgot;
10246 if (s != NULL)
10247 {
eea6121a 10248 if (s->size == 0)
8423293d 10249 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 10250 else
10251 {
eea6121a 10252 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 10253 if (s->contents == NULL)
10254 return FALSE;
10255 relocs = TRUE;
10256 s->reloc_count = 0;
10257 }
10258 }
10259 }
10260
e86ce104 10261 if (htab->elf.dynamic_sections_created)
5bd4f169 10262 {
e8910a83
AM		 10263 bfd_boolean tls_opt;
10264
5bd4f169
AM		 10265 /* Add some entries to the .dynamic section. We fill in the
10266 values later, in ppc64_elf_finish_dynamic_sections, but we
10267 must add the entries now so that we get the correct size for
10268 the .dynamic section. The DT_DEBUG entry is filled in by the
10269 dynamic linker and used by the debugger. */
dc810e39 10270#define add_dynamic_entry(TAG, VAL) \
5a580b3a 10271 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 10272
0e1862bb 10273 if (bfd_link_executable (info))
5bd4f169 10274 {
dc810e39 10275 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 10276 return FALSE;
5bd4f169
AM		 10277 }
10278
33e44f2e 10279 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
5bd4f169 10280 {
dc810e39
AM		 10281 if (!add_dynamic_entry (DT_PLTGOT, 0)
10282 || !add_dynamic_entry (DT_PLTRELSZ, 0)
10283 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 10284 || !add_dynamic_entry (DT_JMPREL, 0)
10285 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 10286 return FALSE;
5bd4f169
AM		 10287 }
10288
ee67d69a 10289 if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1)
19397422
AM		 10290 {
10291 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
10292 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 10293 return FALSE;
19397422
AM		 10294 }
10295
7c9cf415 10296 tls_opt = (htab->params->tls_get_addr_opt
e8910a83
AM		 10297 && htab->tls_get_addr_fd != NULL
10298 && htab->tls_get_addr_fd->elf.plt.plist != NULL);
10299 if (tls_opt || !htab->opd_abi)
10300 {
10301 if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0))
10302 return FALSE;
10303 }
a7f2871e 10304
5bd4f169
AM		 10305 if (relocs)
10306 {
dc810e39
AM		 10307 if (!add_dynamic_entry (DT_RELA, 0)
10308 || !add_dynamic_entry (DT_RELASZ, 0)
10309 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 10310 return FALSE;
5bd4f169 10311
65f38f15
AM		 10312 /* If any dynamic relocs apply to a read-only section,
10313 then we need a DT_TEXTREL entry. */
248866a8 10314 if ((info->flags & DF_TEXTREL) == 0)
a345bc8d 10315 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
5bd4f169 10316
65f38f15 10317 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 10318 {
65f38f15 10319 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 10320 return FALSE;
5bd4f169 10321 }
5bd4f169 10322 }
5bd4f169 10323 }
65f38f15 10324#undef add_dynamic_entry
5bd4f169 10325
b34976b6 10326 return TRUE;
5bd4f169
AM		 10327}
10328
a345bc8d
AM		 10329/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
10330
10331static bfd_boolean
10332ppc64_elf_hash_symbol (struct elf_link_hash_entry *h)
10333{
10334 if (h->plt.plist != NULL
10335 && !h->def_regular
10336 && !h->pointer_equality_needed)
10337 return FALSE;
10338
10339 return _bfd_elf_hash_symbol (h);
10340}
10341
721956f4 10342/* Determine the type of stub needed, if any, for a call. */
5bd4f169 10343
4ce794b7
AM		 10344static inline enum ppc_stub_type
10345ppc_type_of_stub (asection *input_sec,
10346 const Elf_Internal_Rela *rel,
10347 struct ppc_link_hash_entry **hash,
e054468f 10348 struct plt_entry **plt_ent,
6911b7dc
AM		 10349 bfd_vma destination,
10350 unsigned long local_off)
5bd4f169 10351{
721956f4
AM		 10352 struct ppc_link_hash_entry *h = *hash;
10353 bfd_vma location;
10354 bfd_vma branch_offset;
10355 bfd_vma max_branch_offset;
4ce794b7 10356 enum elf_ppc64_reloc_type r_type;
5bd4f169 10357
721956f4
AM		 10358 if (h != NULL)
10359 {
e054468f 10360 struct plt_entry *ent;
7fe2b9a6 10361 struct ppc_link_hash_entry *fdh = h;
b31867b6
AM		 10362 if (h->oh != NULL
10363 && h->oh->is_func_descriptor)
7b8f6675
AM		 10364 {
10365 fdh = ppc_follow_link (h->oh);
10366 *hash = fdh;
10367 }
8387904d 10368
e054468f
AM		 10369 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
10370 if (ent->addend == rel->r_addend
10371 && ent->plt.offset != (bfd_vma) -1)
10372 {
e054468f
AM		 10373 *plt_ent = ent;
10374 return ppc_stub_plt_call;
10375 }
5bd4f169 10376
7fe2b9a6
AM		 10377 /* Here, we know we don't have a plt entry. If we don't have a
10378 either a defined function descriptor or a defined entry symbol
10379 in a regular object file, then it is pointless trying to make
10380 any other type of stub. */
854b41e7
AM		 10381 if (!is_static_defined (&fdh->elf)
10382 && !is_static_defined (&h->elf))
721956f4 10383 return ppc_stub_none;
5d1634d7 10384 }
e054468f
AM		 10385 else if (elf_local_got_ents (input_sec->owner) != NULL)
10386 {
10387 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner);
10388 struct plt_entry **local_plt = (struct plt_entry **)
10389 elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info;
10390 unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
10391
10392 if (local_plt[r_symndx] != NULL)
10393 {
10394 struct plt_entry *ent;
10395
10396 for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next)
10397 if (ent->addend == rel->r_addend
10398 && ent->plt.offset != (bfd_vma) -1)
10399 {
10400 *plt_ent = ent;
10401 return ppc_stub_plt_call;
10402 }
10403 }
10404 }
5d1634d7 10405
721956f4
AM		 10406 /* Determine where the call point is. */
10407 location = (input_sec->output_offset
10408 + input_sec->output_section->vma
10409 + rel->r_offset);
5d1634d7 10410
721956f4
AM		 10411 branch_offset = destination - location;
10412 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 10413
721956f4
AM		 10414 /* Determine if a long branch stub is needed. */
10415 max_branch_offset = 1 << 25;
4ce794b7 10416 if (r_type != R_PPC64_REL24)
721956f4 10417 max_branch_offset = 1 << 15;
5d1634d7 10418
6911b7dc 10419 if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off)
721956f4
AM		 10420 /* We need a stub. Figure out whether a long_branch or plt_branch
10421 is needed later. */
10422 return ppc_stub_long_branch;
5d1634d7 10423
721956f4 10424 return ppc_stub_none;
5d1634d7
AM		 10425}
10426
794e51c0
AM		 10427/* With power7 weakly ordered memory model, it is possible for ld.so
10428 to update a plt entry in one thread and have another thread see a
10429 stale zero toc entry. To avoid this we need some sort of acquire
10430 barrier in the call stub. One solution is to make the load of the
10431 toc word seem to appear to depend on the load of the function entry
10432 word. Another solution is to test for r2 being zero, and branch to
10433 the appropriate glink entry if so.
10434
10435 . fake dep barrier compare
71a39c98
AM		 10436 . ld 12,xxx(2) ld 12,xxx(2)
10437 . mtctr 12 mtctr 12
10438 . xor 11,12,12 ld 2,xxx+8(2)
794e51c0
AM		 10439 . add 2,2,11 cmpldi 2,0
10440 . ld 2,xxx+8(2) bnectr+
10441 . bctr b <glink_entry>
10442
10443 The solution involving the compare turns out to be faster, so
10444 that's what we use unless the branch won't reach. */
10445
10446#define ALWAYS_USE_FAKE_DEP 0
10447#define ALWAYS_EMIT_R2SAVE 0
5d1634d7 10448
5d1634d7
AM		 10449#define PPC_LO(v) ((v) & 0xffff)
10450#define PPC_HI(v) (((v) >> 16) & 0xffff)
10451#define PPC_HA(v) PPC_HI ((v) + 0x8000)
10452
794e51c0
AM		 10453static inline unsigned int
10454plt_stub_size (struct ppc_link_hash_table *htab,
10455 struct ppc_stub_hash_entry *stub_entry,
10456 bfd_vma off)
10457{
b9e5796b
AM		 10458 unsigned size = 12;
10459
10460 if (ALWAYS_EMIT_R2SAVE
10461 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10462 size += 4;
10463 if (PPC_HA (off) != 0)
794e51c0 10464 size += 4;
b9e5796b
AM		 10465 if (htab->opd_abi)
10466 {
10467 size += 4;
e7d1c40c 10468 if (htab->params->plt_static_chain)
b9e5796b 10469 size += 4;
bd4d2eaa
AM		 10470 if (htab->params->plt_thread_safe
10471 && htab->elf.dynamic_sections_created
10472 && stub_entry->h != NULL
10473 && stub_entry->h->elf.dynindx != -1)
b9e5796b 10474 size += 8;
e7d1c40c 10475 if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off))
b9e5796b
AM		 10476 size += 4;
10477 }
794e51c0
AM		 10478 if (stub_entry->h != NULL
10479 && (stub_entry->h == htab->tls_get_addr_fd
10480 || stub_entry->h == htab->tls_get_addr)
7c9cf415 10481 && htab->params->tls_get_addr_opt)
794e51c0
AM		 10482 size += 13 * 4;
10483 return size;
10484}
10485
10486/* If this stub would cross fewer 2**plt_stub_align boundaries if we align,
10487 then return the padding needed to do so. */
10488static inline unsigned int
10489plt_stub_pad (struct ppc_link_hash_table *htab,
10490 struct ppc_stub_hash_entry *stub_entry,
10491 bfd_vma plt_off)
10492{
e7d1c40c 10493 int stub_align = 1 << htab->params->plt_stub_align;
794e51c0 10494 unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off);
6f20ed8a 10495 bfd_vma stub_off = stub_entry->group->stub_sec->size;
794e51c0
AM		 10496
10497 if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align)
e05fa0ba 10498 > ((stub_size - 1) & -stub_align))
794e51c0
AM		 10499 return stub_align - (stub_off & (stub_align - 1));
10500 return 0;
10501}
10502
10503/* Build a .plt call stub. */
10504
10505static inline bfd_byte *
10506build_plt_stub (struct ppc_link_hash_table *htab,
10507 struct ppc_stub_hash_entry *stub_entry,
10508 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
10509{
e7d1c40c 10510 bfd *obfd = htab->params->stub_bfd;
b9e5796b 10511 bfd_boolean plt_load_toc = htab->opd_abi;
e7d1c40c 10512 bfd_boolean plt_static_chain = htab->params->plt_static_chain;
bd4d2eaa
AM		 10513 bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe
10514 && htab->elf.dynamic_sections_created
10515 && stub_entry->h != NULL
10516 && stub_entry->h->elf.dynindx != -1);
794e51c0
AM		 10517 bfd_boolean use_fake_dep = plt_thread_safe;
10518 bfd_vma cmp_branch_off = 0;
10519
10520 if (!ALWAYS_USE_FAKE_DEP
b9e5796b 10521 && plt_load_toc
794e51c0 10522 && plt_thread_safe
bd4d2eaa
AM		 10523 && !((stub_entry->h == htab->tls_get_addr_fd
10524 || stub_entry->h == htab->tls_get_addr)
7c9cf415 10525 && htab->params->tls_get_addr_opt))
794e51c0
AM		 10526 {
10527 bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1;
b9e5796b
AM		 10528 bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab))
10529 / PLT_ENTRY_SIZE (htab));
794e51c0
AM		 10530 bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8;
10531 bfd_vma to, from;
10532
68d62958
AM		 10533 if (pltindex > 32768)
10534 glinkoff += (pltindex - 32768) * 4;
794e51c0
AM		 10535 to = (glinkoff
10536 + htab->glink->output_offset
10537 + htab->glink->output_section->vma);
6f20ed8a 10538 from = (p - stub_entry->group->stub_sec->contents
794e51c0
AM		 10539 + 4 * (ALWAYS_EMIT_R2SAVE
10540 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10541 + 4 * (PPC_HA (offset) != 0)
10542 + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain)
10543 != PPC_HA (offset))
10544 + 4 * (plt_static_chain != 0)
10545 + 20
6f20ed8a
AM		 10546 + stub_entry->group->stub_sec->output_offset
10547 + stub_entry->group->stub_sec->output_section->vma);
794e51c0
AM		 10548 cmp_branch_off = to - from;
10549 use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26);
10550 }
10551
ac2df442
AM		 10552 if (PPC_HA (offset) != 0)
10553 {
176a0d42
AM		 10554 if (r != NULL)
10555 {
794e51c0
AM		 10556 if (ALWAYS_EMIT_R2SAVE
10557 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10558 r[0].r_offset += 4;
176a0d42 10559 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
3b421ab3 10560 r[1].r_offset = r[0].r_offset + 4;
176a0d42
AM		 10561 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10562 r[1].r_addend = r[0].r_addend;
b9e5796b 10563 if (plt_load_toc)
176a0d42 10564 {
b9e5796b 10565 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
c7131b65 10566 {
b9e5796b
AM		 10567 r[2].r_offset = r[1].r_offset + 4;
10568 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
10569 r[2].r_addend = r[0].r_addend;
10570 }
10571 else
10572 {
10573 r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep;
10574 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10575 r[2].r_addend = r[0].r_addend + 8;
10576 if (plt_static_chain)
10577 {
10578 r[3].r_offset = r[2].r_offset + 4;
10579 r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10580 r[3].r_addend = r[0].r_addend + 16;
10581 }
c7131b65 10582 }
176a0d42
AM		 10583 }
10584 }
794e51c0
AM		 10585 if (ALWAYS_EMIT_R2SAVE
10586 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
a078d95a 10587 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
397998fc
AM		 10588 if (plt_load_toc)
10589 {
10590 bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4;
10591 bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4;
10592 }
10593 else
10594 {
10595 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
10596 bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4;
10597 }
b9e5796b
AM		 10598 if (plt_load_toc
10599 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
ac2df442 10600 {
71a39c98 10601 bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4;
ac2df442
AM		 10602 offset = 0;
10603 }
71a39c98 10604 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
b9e5796b 10605 if (plt_load_toc)
794e51c0 10606 {
b9e5796b
AM		 10607 if (use_fake_dep)
10608 {
10609 bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4;
10610 bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4;
10611 }
10612 bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4;
10613 if (plt_static_chain)
10614 bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4;
794e51c0 10615 }
ac2df442
AM		 10616 }
10617 else
10618 {
176a0d42
AM		 10619 if (r != NULL)
10620 {
794e51c0
AM		 10621 if (ALWAYS_EMIT_R2SAVE
10622 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10623 r[0].r_offset += 4;
176a0d42 10624 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
b9e5796b 10625 if (plt_load_toc)
176a0d42 10626 {
b9e5796b 10627 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
c7131b65 10628 {
b9e5796b
AM		 10629 r[1].r_offset = r[0].r_offset + 4;
10630 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
10631 r[1].r_addend = r[0].r_addend;
10632 }
10633 else
10634 {
10635 r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep;
10636 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10637 r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain;
10638 if (plt_static_chain)
10639 {
10640 r[2].r_offset = r[1].r_offset + 4;
10641 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10642 r[2].r_addend = r[0].r_addend + 8;
10643 }
c7131b65 10644 }
176a0d42
AM		 10645 }
10646 }
794e51c0
AM		 10647 if (ALWAYS_EMIT_R2SAVE
10648 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
a078d95a 10649 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
71a39c98 10650 bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4;
b9e5796b
AM		 10651 if (plt_load_toc
10652 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
ac2df442
AM		 10653 {
10654 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
10655 offset = 0;
10656 }
71a39c98 10657 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
b9e5796b 10658 if (plt_load_toc)
794e51c0 10659 {
b9e5796b
AM		 10660 if (use_fake_dep)
10661 {
10662 bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4;
10663 bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4;
10664 }
10665 if (plt_static_chain)
10666 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
10667 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
794e51c0 10668 }
ac2df442 10669 }
b9e5796b 10670 if (plt_load_toc && plt_thread_safe && !use_fake_dep)
794e51c0
AM		 10671 {
10672 bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4;
10673 bfd_put_32 (obfd, BNECTR_P4, p), p += 4;
22aa0c7e 10674 bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4;
794e51c0
AM		 10675 }
10676 else
10677 bfd_put_32 (obfd, BCTR, p), p += 4;
5d1634d7
AM		 10678 return p;
10679}
10680
a7f2871e
AM		 10681/* Build a special .plt call stub for __tls_get_addr. */
10682
10683#define LD_R11_0R3 0xe9630000
10684#define LD_R12_0R3 0xe9830000
10685#define MR_R0_R3 0x7c601b78
10686#define CMPDI_R11_0 0x2c2b0000
10687#define ADD_R3_R12_R13 0x7c6c6a14
10688#define BEQLR 0x4d820020
10689#define MR_R3_R0 0x7c030378
a7f2871e
AM		 10690#define STD_R11_0R1 0xf9610000
10691#define BCTRL 0x4e800421
10692#define LD_R11_0R1 0xe9610000
a7f2871e
AM		 10693#define MTLR_R11 0x7d6803a6
10694
10695static inline bfd_byte *
794e51c0
AM		 10696build_tls_get_addr_stub (struct ppc_link_hash_table *htab,
10697 struct ppc_stub_hash_entry *stub_entry,
10698 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
a7f2871e 10699{
e7d1c40c 10700 bfd *obfd = htab->params->stub_bfd;
794e51c0 10701
a7f2871e
AM		 10702 bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4;
10703 bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4;
10704 bfd_put_32 (obfd, MR_R0_R3, p), p += 4;
10705 bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4;
10706 bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4;
10707 bfd_put_32 (obfd, BEQLR, p), p += 4;
10708 bfd_put_32 (obfd, MR_R3_R0, p), p += 4;
10709 bfd_put_32 (obfd, MFLR_R11, p), p += 4;
a078d95a 10710 bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4;
a7f2871e
AM		 10711
10712 if (r != NULL)
10713 r[0].r_offset += 9 * 4;
794e51c0 10714 p = build_plt_stub (htab, stub_entry, p, offset, r);
a7f2871e
AM		 10715 bfd_put_32 (obfd, BCTRL, p - 4);
10716
a078d95a 10717 bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4;
bd4d2eaa 10718 bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4;
a7f2871e
AM		 10719 bfd_put_32 (obfd, MTLR_R11, p), p += 4;
10720 bfd_put_32 (obfd, BLR, p), p += 4;
10721
10722 return p;
10723}
10724
176a0d42
AM		 10725static Elf_Internal_Rela *
10726get_relocs (asection *sec, int count)
10727{
10728 Elf_Internal_Rela *relocs;
10729 struct bfd_elf_section_data *elfsec_data;
10730
10731 elfsec_data = elf_section_data (sec);
10732 relocs = elfsec_data->relocs;
10733 if (relocs == NULL)
10734 {
10735 bfd_size_type relsize;
10736 relsize = sec->reloc_count * sizeof (*relocs);
10737 relocs = bfd_alloc (sec->owner, relsize);
10738 if (relocs == NULL)
10739 return NULL;
10740 elfsec_data->relocs = relocs;
d4730f92
BS		 10741 elfsec_data->rela.hdr = bfd_zalloc (sec->owner,
10742 sizeof (Elf_Internal_Shdr));
10743 if (elfsec_data->rela.hdr == NULL)
10744 return NULL;
10745 elfsec_data->rela.hdr->sh_size = (sec->reloc_count
10746 * sizeof (Elf64_External_Rela));
10747 elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela);
176a0d42
AM		 10748 sec->reloc_count = 0;
10749 }
10750 relocs += sec->reloc_count;
10751 sec->reloc_count += count;
10752 return relocs;
10753}
10754
aa374f67 10755static bfd_vma
25f53a85 10756get_r2off (struct bfd_link_info *info,
aa374f67
AM		 10757 struct ppc_stub_hash_entry *stub_entry)
10758{
25f53a85 10759 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6f20ed8a 10760 bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off;
aa374f67
AM		 10761
10762 if (r2off == 0)
10763 {
10764 /* Support linking -R objects. Get the toc pointer from the
10765 opd entry. */
10766 char buf[8];
b9e5796b
AM		 10767 if (!htab->opd_abi)
10768 return r2off;
aa374f67
AM		 10769 asection *opd = stub_entry->h->elf.root.u.def.section;
10770 bfd_vma opd_off = stub_entry->h->elf.root.u.def.value;
10771
10772 if (strcmp (opd->name, ".opd") != 0
10773 || opd->reloc_count != 0)
10774 {
bc30df16 10775 info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"),
25f53a85 10776 stub_entry->h->elf.root.root.string);
aa374f67 10777 bfd_set_error (bfd_error_bad_value);
a7c49797 10778 return (bfd_vma) -1;
aa374f67
AM		 10779 }
10780 if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8))
a7c49797 10781 return (bfd_vma) -1;
aa374f67 10782 r2off = bfd_get_64 (opd->owner, buf);
25f53a85 10783 r2off -= elf_gp (info->output_bfd);
aa374f67 10784 }
6f20ed8a 10785 r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off;
aa374f67
AM		 10786 return r2off;
10787}
10788
b34976b6 10789static bfd_boolean
4ce794b7 10790ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 10791{
721956f4
AM		 10792 struct ppc_stub_hash_entry *stub_entry;
10793 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 10794 struct bfd_link_info *info;
10795 struct ppc_link_hash_table *htab;
721956f4
AM		 10796 bfd_byte *loc;
10797 bfd_byte *p;
ee75fd95 10798 bfd_vma dest, off;
721956f4 10799 int size;
176a0d42 10800 Elf_Internal_Rela *r;
e054468f 10801 asection *plt;
5d1634d7 10802
721956f4
AM		 10803 /* Massage our args to the form they really have. */
10804 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 10805 info = in_arg;
5d1634d7 10806
5d1634d7 10807 htab = ppc_hash_table (info);
4dfe6ac6
NC		 10808 if (htab == NULL)
10809 return FALSE;
5d1634d7 10810
721956f4 10811 /* Make a note of the offset within the stubs for this entry. */
6f20ed8a
AM		 10812 stub_entry->stub_offset = stub_entry->group->stub_sec->size;
10813 loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset;
721956f4 10814
4ce794b7 10815 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 10816 switch (stub_entry->stub_type)
5d1634d7 10817 {
721956f4 10818 case ppc_stub_long_branch:
ad8e1ba5 10819 case ppc_stub_long_branch_r2off:
721956f4 10820 /* Branches are relative. This is where we are going to. */
6911b7dc
AM		 10821 dest = (stub_entry->target_value
10822 + stub_entry->target_section->output_offset
10823 + stub_entry->target_section->output_section->vma);
10824 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
10825 off = dest;
5d1634d7 10826
721956f4
AM		 10827 /* And this is where we are coming from. */
10828 off -= (stub_entry->stub_offset
6f20ed8a
AM		 10829 + stub_entry->group->stub_sec->output_offset
10830 + stub_entry->group->stub_sec->output_section->vma);
e86ce104 10831
ac2df442
AM		 10832 size = 4;
10833 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
ad8e1ba5 10834 {
25f53a85 10835 bfd_vma r2off = get_r2off (info, stub_entry);
ad8e1ba5 10836
a7c49797 10837 if (r2off == (bfd_vma) -1)
aa374f67
AM		 10838 {
10839 htab->stub_error = TRUE;
10840 return FALSE;
10841 }
e7d1c40c 10842 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
ad8e1ba5 10843 loc += 4;
a7c49797 10844 size = 8;
ac2df442
AM		 10845 if (PPC_HA (r2off) != 0)
10846 {
e7d1c40c
AM		 10847 bfd_put_32 (htab->params->stub_bfd,
10848 ADDIS_R2_R2 | PPC_HA (r2off), loc);
ac2df442 10849 loc += 4;
a7c49797
AM		 10850 size += 4;
10851 }
10852 if (PPC_LO (r2off) != 0)
10853 {
10854 bfd_put_32 (htab->params->stub_bfd,
10855 ADDI_R2_R2 | PPC_LO (r2off), loc);
10856 loc += 4;
10857 size += 4;
ac2df442 10858 }
ac2df442 10859 off -= size - 4;
ad8e1ba5 10860 }
e7d1c40c 10861 bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 10862
5c3dead3
AM		 10863 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
10864 {
bc30df16
AM		 10865 info->callbacks->einfo
10866 (_("%P: long branch stub `%s' offset overflow\n"),
10867 stub_entry->root.string);
5c3dead3
AM		 10868 htab->stub_error = TRUE;
10869 return FALSE;
10870 }
ee75fd95
AM		 10871
10872 if (info->emitrelocations)
10873 {
6f20ed8a 10874 r = get_relocs (stub_entry->group->stub_sec, 1);
176a0d42
AM		 10875 if (r == NULL)
10876 return FALSE;
6f20ed8a 10877 r->r_offset = loc - stub_entry->group->stub_sec->contents;
ee75fd95
AM		 10878 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
10879 r->r_addend = dest;
10880 if (stub_entry->h != NULL)
10881 {
10882 struct elf_link_hash_entry **hashes;
10883 unsigned long symndx;
10884 struct ppc_link_hash_entry *h;
10885
e7d1c40c 10886 hashes = elf_sym_hashes (htab->params->stub_bfd);
ee75fd95
AM		 10887 if (hashes == NULL)
10888 {
10889 bfd_size_type hsize;
10890
10891 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
e7d1c40c 10892 hashes = bfd_zalloc (htab->params->stub_bfd, hsize);
ee75fd95
AM		 10893 if (hashes == NULL)
10894 return FALSE;
e7d1c40c 10895 elf_sym_hashes (htab->params->stub_bfd) = hashes;
ee75fd95
AM		 10896 htab->stub_globals = 1;
10897 }
10898 symndx = htab->stub_globals++;
10899 h = stub_entry->h;
10900 hashes[symndx] = &h->elf;
10901 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
10902 if (h->oh != NULL && h->oh->is_func)
b31867b6 10903 h = ppc_follow_link (h->oh);
ee75fd95
AM		 10904 if (h->elf.root.u.def.section != stub_entry->target_section)
10905 /* H is an opd symbol. The addend must be zero. */
10906 r->r_addend = 0;
10907 else
10908 {
10909 off = (h->elf.root.u.def.value
10910 + h->elf.root.u.def.section->output_offset
10911 + h->elf.root.u.def.section->output_section->vma);
10912 r->r_addend -= off;
10913 }
10914 }
10915 }
721956f4 10916 break;
e86ce104 10917
721956f4 10918 case ppc_stub_plt_branch:
ad8e1ba5 10919 case ppc_stub_plt_branch_r2off:
721956f4
AM		 10920 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
10921 stub_entry->root.string + 9,
b34976b6 10922 FALSE, FALSE);
721956f4
AM		 10923 if (br_entry == NULL)
10924 {
8de848d8 10925 info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"),
25f53a85 10926 stub_entry->root.string);
b34976b6
AM		 10927 htab->stub_error = TRUE;
10928 return FALSE;
721956f4
AM		 10929 }
10930
176a0d42
AM		 10931 dest = (stub_entry->target_value
10932 + stub_entry->target_section->output_offset
10933 + stub_entry->target_section->output_section->vma);
6911b7dc
AM		 10934 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
10935 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
721956f4 10936
176a0d42 10937 bfd_put_64 (htab->brlt->owner, dest,
4ce794b7 10938 htab->brlt->contents + br_entry->offset);
721956f4 10939
f94498ff 10940 if (br_entry->iter == htab->stub_iteration)
721956f4 10941 {
f94498ff 10942 br_entry->iter = 0;
84f5d08e 10943
f94498ff 10944 if (htab->relbrlt != NULL)
84f5d08e 10945 {
f94498ff
AM		 10946 /* Create a reloc for the branch lookup table entry. */
10947 Elf_Internal_Rela rela;
10948 bfd_byte *rl;
10949
10950 rela.r_offset = (br_entry->offset
10951 + htab->brlt->output_offset
10952 + htab->brlt->output_section->vma);
10953 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 10954 rela.r_addend = dest;
f94498ff
AM		 10955
10956 rl = htab->relbrlt->contents;
10957 rl += (htab->relbrlt->reloc_count++
10958 * sizeof (Elf64_External_Rela));
10959 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
10960 }
10961 else if (info->emitrelocations)
10962 {
176a0d42
AM		 10963 r = get_relocs (htab->brlt, 1);
10964 if (r == NULL)
10965 return FALSE;
10966 /* brlt, being SEC_LINKER_CREATED does not go through the
10967 normal reloc processing. Symbols and offsets are not
10968 translated from input file to output file form, so
10969 set up the offset per the output file. */
f94498ff
AM		 10970 r->r_offset = (br_entry->offset
10971 + htab->brlt->output_offset
10972 + htab->brlt->output_section->vma);
10973 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 10974 r->r_addend = dest;
84f5d08e 10975 }
84f5d08e 10976 }
721956f4 10977
176a0d42
AM		 10978 dest = (br_entry->offset
10979 + htab->brlt->output_offset
10980 + htab->brlt->output_section->vma);
10981
10982 off = (dest
4ce794b7 10983 - elf_gp (htab->brlt->output_section->owner)
6f20ed8a 10984 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
721956f4 10985
ad8e1ba5 10986 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7 10987 {
25f53a85 10988 info->callbacks->einfo
bc30df16 10989 (_("%P: linkage table error against `%T'\n"),
721956f4 10990 stub_entry->root.string);
5d1634d7 10991 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 10992 htab->stub_error = TRUE;
10993 return FALSE;
5d1634d7 10994 }
41bd81ab 10995
176a0d42
AM		 10996 if (info->emitrelocations)
10997 {
6f20ed8a 10998 r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0));
176a0d42
AM		 10999 if (r == NULL)
11000 return FALSE;
6f20ed8a 11001 r[0].r_offset = loc - stub_entry->group->stub_sec->contents;
7cfbafbc
AM		 11002 if (bfd_big_endian (info->output_bfd))
11003 r[0].r_offset += 2;
00f412ee 11004 if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
176a0d42
AM		 11005 r[0].r_offset += 4;
11006 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
11007 r[0].r_addend = dest;
11008 if (PPC_HA (off) != 0)
11009 {
11010 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
11011 r[1].r_offset = r[0].r_offset + 4;
11012 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
11013 r[1].r_addend = r[0].r_addend;
11014 }
11015 }
11016
00f412ee 11017 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
ad8e1ba5 11018 {
176a0d42 11019 if (PPC_HA (off) != 0)
ac2df442
AM		 11020 {
11021 size = 16;
e7d1c40c 11022 bfd_put_32 (htab->params->stub_bfd,
397998fc 11023 ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 11024 loc += 4;
e7d1c40c 11025 bfd_put_32 (htab->params->stub_bfd,
397998fc 11026 LD_R12_0R12 | PPC_LO (off), loc);
ac2df442
AM		 11027 }
11028 else
11029 {
11030 size = 12;
e7d1c40c
AM		 11031 bfd_put_32 (htab->params->stub_bfd,
11032 LD_R12_0R2 | PPC_LO (off), loc);
ac2df442 11033 }
ad8e1ba5
AM		 11034 }
11035 else
11036 {
25f53a85 11037 bfd_vma r2off = get_r2off (info, stub_entry);
aa374f67 11038
a7c49797 11039 if (r2off == (bfd_vma) -1)
aa374f67
AM		 11040 {
11041 htab->stub_error = TRUE;
11042 return FALSE;
11043 }
ad8e1ba5 11044
e7d1c40c 11045 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
ad8e1ba5 11046 loc += 4;
00f412ee 11047 size = 16;
176a0d42 11048 if (PPC_HA (off) != 0)
ac2df442
AM		 11049 {
11050 size += 4;
e7d1c40c 11051 bfd_put_32 (htab->params->stub_bfd,
397998fc 11052 ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 11053 loc += 4;
e7d1c40c 11054 bfd_put_32 (htab->params->stub_bfd,
397998fc 11055 LD_R12_0R12 | PPC_LO (off), loc);
ac2df442
AM		 11056 }
11057 else
e7d1c40c 11058 bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc);
ac2df442
AM		 11059
11060 if (PPC_HA (r2off) != 0)
11061 {
11062 size += 4;
00f412ee 11063 loc += 4;
e7d1c40c
AM		 11064 bfd_put_32 (htab->params->stub_bfd,
11065 ADDIS_R2_R2 | PPC_HA (r2off), loc);
00f412ee
AM		 11066 }
11067 if (PPC_LO (r2off) != 0)
11068 {
11069 size += 4;
ac2df442 11070 loc += 4;
e7d1c40c
AM		 11071 bfd_put_32 (htab->params->stub_bfd,
11072 ADDI_R2_R2 | PPC_LO (r2off), loc);
ac2df442 11073 }
ad8e1ba5
AM		 11074 }
11075 loc += 4;
e7d1c40c 11076 bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc);
ad8e1ba5 11077 loc += 4;
e7d1c40c 11078 bfd_put_32 (htab->params->stub_bfd, BCTR, loc);
721956f4 11079 break;
5d1634d7 11080
721956f4 11081 case ppc_stub_plt_call:
794e51c0 11082 case ppc_stub_plt_call_r2save:
e054468f 11083 if (stub_entry->h != NULL
b31867b6
AM		 11084 && stub_entry->h->is_func_descriptor
11085 && stub_entry->h->oh != NULL)
c862ae31 11086 {
b31867b6
AM		 11087 struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh);
11088
11089 /* If the old-ABI "dot-symbol" is undefined make it weak so
6f20ed8a 11090 we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */
b31867b6
AM		 11091 if (fh->elf.root.type == bfd_link_hash_undefined)
11092 fh->elf.root.type = bfd_link_hash_undefweak;
9507a174
AM		 11093 /* Stop undo_symbol_twiddle changing it back to undefined. */
11094 fh->was_undefined = 0;
c862ae31
AM		 11095 }
11096
721956f4 11097 /* Now build the stub. */
e054468f 11098 dest = stub_entry->plt_ent->plt.offset & ~1;
176a0d42 11099 if (dest >= (bfd_vma) -2)
721956f4
AM		 11100 abort ();
11101
33e44f2e 11102 plt = htab->elf.splt;
25f23106
AM		 11103 if (!htab->elf.dynamic_sections_created
11104 || stub_entry->h == NULL
11105 || stub_entry->h->elf.dynindx == -1)
33e44f2e 11106 plt = htab->elf.iplt;
e054468f
AM		 11107
11108 dest += plt->output_offset + plt->output_section->vma;
11109
11110 if (stub_entry->h == NULL
11111 && (stub_entry->plt_ent->plt.offset & 1) == 0)
11112 {
11113 Elf_Internal_Rela rela;
11114 bfd_byte *rl;
11115
11116 rela.r_offset = dest;
ee67d69a
AM		 11117 if (htab->opd_abi)
11118 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
11119 else
11120 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
e054468f
AM		 11121 rela.r_addend = (stub_entry->target_value
11122 + stub_entry->target_section->output_offset
11123 + stub_entry->target_section->output_section->vma);
11124
33e44f2e
AM		 11125 rl = (htab->elf.irelplt->contents
11126 + (htab->elf.irelplt->reloc_count++
25f23106
AM		 11127 * sizeof (Elf64_External_Rela)));
11128 bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl);
e054468f
AM		 11129 stub_entry->plt_ent->plt.offset |= 1;
11130 }
176a0d42
AM		 11131
11132 off = (dest
e054468f 11133 - elf_gp (plt->output_section->owner)
6f20ed8a 11134 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
721956f4 11135
ad8e1ba5 11136 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4 11137 {
25f53a85 11138 info->callbacks->einfo
695344c0 11139 /* xgettext:c-format */
bc30df16 11140 (_("%P: linkage table error against `%T'\n"),
e054468f
AM		 11141 stub_entry->h != NULL
11142 ? stub_entry->h->elf.root.root.string
11143 : "<local sym>");
721956f4 11144 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 11145 htab->stub_error = TRUE;
11146 return FALSE;
721956f4
AM		 11147 }
11148
e7d1c40c 11149 if (htab->params->plt_stub_align != 0)
794e51c0
AM		 11150 {
11151 unsigned pad = plt_stub_pad (htab, stub_entry, off);
11152
6f20ed8a
AM		 11153 stub_entry->group->stub_sec->size += pad;
11154 stub_entry->stub_offset = stub_entry->group->stub_sec->size;
794e51c0
AM		 11155 loc += pad;
11156 }
11157
176a0d42
AM		 11158 r = NULL;
11159 if (info->emitrelocations)
11160 {
6f20ed8a 11161 r = get_relocs (stub_entry->group->stub_sec,
3ba720c7
AM		 11162 ((PPC_HA (off) != 0)
11163 + (htab->opd_abi
e7d1c40c 11164 ? 2 + (htab->params->plt_static_chain
3ba720c7
AM		 11165 && PPC_HA (off + 16) == PPC_HA (off))
11166 : 1)));
176a0d42
AM		 11167 if (r == NULL)
11168 return FALSE;
6f20ed8a 11169 r[0].r_offset = loc - stub_entry->group->stub_sec->contents;
7cfbafbc
AM		 11170 if (bfd_big_endian (info->output_bfd))
11171 r[0].r_offset += 2;
176a0d42
AM		 11172 r[0].r_addend = dest;
11173 }
a7f2871e
AM		 11174 if (stub_entry->h != NULL
11175 && (stub_entry->h == htab->tls_get_addr_fd
11176 || stub_entry->h == htab->tls_get_addr)
7c9cf415 11177 && htab->params->tls_get_addr_opt)
794e51c0 11178 p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r);
a7f2871e 11179 else
794e51c0 11180 p = build_plt_stub (htab, stub_entry, loc, off, r);
721956f4
AM		 11181 size = p - loc;
11182 break;
11183
a4b6fadd
AM		 11184 case ppc_stub_save_res:
11185 return TRUE;
11186
721956f4
AM		 11187 default:
11188 BFD_FAIL ();
b34976b6 11189 return FALSE;
721956f4
AM		 11190 }
11191
6f20ed8a 11192 stub_entry->group->stub_sec->size += size;
97b639ba 11193
e7d1c40c 11194 if (htab->params->emit_stub_syms)
97b639ba
AM		 11195 {
11196 struct elf_link_hash_entry *h;
ee75fd95
AM		 11197 size_t len1, len2;
11198 char *name;
11199 const char *const stub_str[] = { "long_branch",
11200 "long_branch_r2off",
11201 "plt_branch",
11202 "plt_branch_r2off",
794e51c0 11203 "plt_call",
ee75fd95
AM		 11204 "plt_call" };
11205
11206 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
11207 len2 = strlen (stub_entry->root.string);
11208 name = bfd_malloc (len1 + len2 + 2);
11209 if (name == NULL)
11210 return FALSE;
11211 memcpy (name, stub_entry->root.string, 9);
11212 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
11213 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
11214 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM		 11215 if (h == NULL)
11216 return FALSE;
11217 if (h->root.type == bfd_link_hash_new)
11218 {
11219 h->root.type = bfd_link_hash_defined;
6f20ed8a 11220 h->root.u.def.section = stub_entry->group->stub_sec;
97b639ba 11221 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM		 11222 h->ref_regular = 1;
11223 h->def_regular = 1;
11224 h->ref_regular_nonweak = 1;
11225 h->forced_local = 1;
11226 h->non_elf = 0;
2ec55de3 11227 h->root.linker_def = 1;
97b639ba
AM		 11228 }
11229 }
11230
b34976b6 11231 return TRUE;
721956f4
AM		 11232}
11233
11234/* As above, but don't actually build the stub. Just bump offset so
11235 we know stub section sizes, and select plt_branch stubs where
11236 long_branch stubs won't do. */
11237
b34976b6 11238static bfd_boolean
4ce794b7 11239ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 11240{
11241 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 11242 struct bfd_link_info *info;
721956f4
AM		 11243 struct ppc_link_hash_table *htab;
11244 bfd_vma off;
11245 int size;
11246
11247 /* Massage our args to the form they really have. */
11248 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 11249 info = in_arg;
11250
11251 htab = ppc_hash_table (info);
4dfe6ac6
NC		 11252 if (htab == NULL)
11253 return FALSE;
721956f4 11254
a4b6fadd
AM		 11255 if (stub_entry->h != NULL
11256 && stub_entry->h->save_res
11257 && stub_entry->h->elf.root.type == bfd_link_hash_defined
11258 && stub_entry->h->elf.root.u.def.section == htab->sfpr)
11259 {
11260 /* Don't make stubs to out-of-line register save/restore
11261 functions. Instead, emit copies of the functions. */
11262 stub_entry->group->needs_save_res = 1;
11263 stub_entry->stub_type = ppc_stub_save_res;
11264 return TRUE;
11265 }
11266
794e51c0
AM		 11267 if (stub_entry->stub_type == ppc_stub_plt_call
11268 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
721956f4 11269 {
e054468f
AM		 11270 asection *plt;
11271 off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1;
58ac9f71 11272 if (off >= (bfd_vma) -2)
411e1bfb 11273 abort ();
33e44f2e 11274 plt = htab->elf.splt;
25f23106
AM		 11275 if (!htab->elf.dynamic_sections_created
11276 || stub_entry->h == NULL
11277 || stub_entry->h->elf.dynindx == -1)
33e44f2e 11278 plt = htab->elf.iplt;
e054468f
AM		 11279 off += (plt->output_offset
11280 + plt->output_section->vma
11281 - elf_gp (plt->output_section->owner)
6f20ed8a 11282 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
721956f4 11283
794e51c0 11284 size = plt_stub_size (htab, stub_entry, off);
e7d1c40c 11285 if (htab->params->plt_stub_align)
794e51c0 11286 size += plt_stub_pad (htab, stub_entry, off);
176a0d42
AM		 11287 if (info->emitrelocations)
11288 {
6f20ed8a 11289 stub_entry->group->stub_sec->reloc_count
b9e5796b
AM		 11290 += ((PPC_HA (off) != 0)
11291 + (htab->opd_abi
e7d1c40c 11292 ? 2 + (htab->params->plt_static_chain
b9e5796b
AM		 11293 && PPC_HA (off + 16) == PPC_HA (off))
11294 : 1));
6f20ed8a 11295 stub_entry->group->stub_sec->flags |= SEC_RELOC;
176a0d42 11296 }
721956f4
AM		 11297 }
11298 else
11299 {
ad8e1ba5
AM		 11300 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
11301 variants. */
ac2df442 11302 bfd_vma r2off = 0;
6911b7dc 11303 bfd_vma local_off = 0;
ac2df442 11304
721956f4
AM		 11305 off = (stub_entry->target_value
11306 + stub_entry->target_section->output_offset
11307 + stub_entry->target_section->output_section->vma);
6f20ed8a
AM		 11308 off -= (stub_entry->group->stub_sec->size
11309 + stub_entry->group->stub_sec->output_offset
11310 + stub_entry->group->stub_sec->output_section->vma);
721956f4 11311
ad8e1ba5
AM		 11312 /* Reset the stub type from the plt variant in case we now
11313 can reach with a shorter stub. */
11314 if (stub_entry->stub_type >= ppc_stub_plt_branch)
11315 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
11316
11317 size = 4;
11318 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
11319 {
25f53a85 11320 r2off = get_r2off (info, stub_entry);
a7c49797 11321 if (r2off == (bfd_vma) -1)
aa374f67
AM		 11322 {
11323 htab->stub_error = TRUE;
11324 return FALSE;
11325 }
a7c49797 11326 size = 8;
ac2df442 11327 if (PPC_HA (r2off) != 0)
a7c49797
AM		 11328 size += 4;
11329 if (PPC_LO (r2off) != 0)
11330 size += 4;
ac2df442 11331 off -= size - 4;
ad8e1ba5
AM		 11332 }
11333
6911b7dc
AM		 11334 local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
11335
b9e5796b
AM		 11336 /* If the branch offset if too big, use a ppc_stub_plt_branch.
11337 Do the same for -R objects without function descriptors. */
11338 if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off
11339 || (stub_entry->stub_type == ppc_stub_long_branch_r2off
a7c49797
AM		 11340 && r2off == 0
11341 && htab->sec_info[stub_entry->target_section->id].toc_off == 0))
721956f4
AM		 11342 {
11343 struct ppc_branch_hash_entry *br_entry;
11344
11345 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
11346 stub_entry->root.string + 9,
b34976b6 11347 TRUE, FALSE);
721956f4
AM		 11348 if (br_entry == NULL)
11349 {
8de848d8 11350 info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"),
25f53a85 11351 stub_entry->root.string);
b34976b6
AM		 11352 htab->stub_error = TRUE;
11353 return FALSE;
721956f4
AM		 11354 }
11355
11356 if (br_entry->iter != htab->stub_iteration)
11357 {
11358 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 11359 br_entry->offset = htab->brlt->size;
11360 htab->brlt->size += 8;
63bc6f6c 11361
ee75fd95 11362 if (htab->relbrlt != NULL)
eea6121a 11363 htab->relbrlt->size += sizeof (Elf64_External_Rela);
84f5d08e
AM		 11364 else if (info->emitrelocations)
11365 {
11366 htab->brlt->reloc_count += 1;
11367 htab->brlt->flags |= SEC_RELOC;
11368 }
721956f4 11369 }
ad8e1ba5
AM		 11370
11371 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
ac2df442
AM		 11372 off = (br_entry->offset
11373 + htab->brlt->output_offset
11374 + htab->brlt->output_section->vma
11375 - elf_gp (htab->brlt->output_section->owner)
6f20ed8a 11376 - htab->sec_info[stub_entry->group->link_sec->id].toc_off);
ac2df442 11377
176a0d42
AM		 11378 if (info->emitrelocations)
11379 {
6f20ed8a
AM		 11380 stub_entry->group->stub_sec->reloc_count
11381 += 1 + (PPC_HA (off) != 0);
11382 stub_entry->group->stub_sec->flags |= SEC_RELOC;
176a0d42
AM		 11383 }
11384
00f412ee 11385 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
ac2df442
AM		 11386 {
11387 size = 12;
176a0d42 11388 if (PPC_HA (off) != 0)
ac2df442
AM		 11389 size = 16;
11390 }
11391 else
11392 {
00f412ee 11393 size = 16;
176a0d42 11394 if (PPC_HA (off) != 0)
ac2df442
AM		 11395 size += 4;
11396
11397 if (PPC_HA (r2off) != 0)
11398 size += 4;
00f412ee
AM		 11399 if (PPC_LO (r2off) != 0)
11400 size += 4;
ac2df442 11401 }
721956f4 11402 }
84f5d08e
AM		 11403 else if (info->emitrelocations)
11404 {
6f20ed8a
AM		 11405 stub_entry->group->stub_sec->reloc_count += 1;
11406 stub_entry->group->stub_sec->flags |= SEC_RELOC;
84f5d08e 11407 }
721956f4
AM		 11408 }
11409
6f20ed8a 11410 stub_entry->group->stub_sec->size += size;
b34976b6 11411 return TRUE;
721956f4
AM		 11412}
11413
11414/* Set up various things so that we can make a list of input sections
11415 for each output section included in the link. Returns -1 on error,
cedb70c5 11416 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 11417
11418int
e7d1c40c 11419ppc64_elf_setup_section_lists (struct bfd_link_info *info)
721956f4 11420{
6f20ed8a 11421 unsigned int id;
721956f4
AM		 11422 bfd_size_type amt;
11423 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11424
4dfe6ac6
NC		 11425 if (htab == NULL)
11426 return -1;
4c52953f 11427
6f20ed8a
AM		 11428 htab->sec_info_arr_size = bfd_get_next_section_id ();
11429 amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size);
11430 htab->sec_info = bfd_zmalloc (amt);
11431 if (htab->sec_info == NULL)
721956f4
AM		 11432 return -1;
11433
3d6f9012
AM		 11434 /* Set toc_off for com, und, abs and ind sections. */
11435 for (id = 0; id < 3; id++)
6f20ed8a 11436 htab->sec_info[id].toc_off = TOC_BASE_OFF;
734b6cf9 11437
721956f4
AM		 11438 return 1;
11439}
11440
927be08e
AM		 11441/* Set up for first pass at multitoc partitioning. */
11442
11443void
11444ppc64_elf_start_multitoc_partition (struct bfd_link_info *info)
11445{
11446 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11447
1c865ab2 11448 htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd);
927be08e
AM		 11449 htab->toc_bfd = NULL;
11450 htab->toc_first_sec = NULL;
11451}
11452
e717da7e
AM		 11453/* The linker repeatedly calls this function for each TOC input section
11454 and linker generated GOT section. Group input bfds such that the toc
927be08e 11455 within a group is less than 64k in size. */
ad8e1ba5 11456
927be08e 11457bfd_boolean
4ce794b7 11458ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 11459{
11460 struct ppc_link_hash_table *htab = ppc_hash_table (info);
d77c8a4b 11461 bfd_vma addr, off, limit;
ad8e1ba5 11462
4dfe6ac6
NC		 11463 if (htab == NULL)
11464 return FALSE;
11465
927be08e 11466 if (!htab->second_toc_pass)
4c52953f 11467 {
927be08e 11468 /* Keep track of the first .toc or .got section for this input bfd. */
a4fd3de5
AM		 11469 bfd_boolean new_bfd = htab->toc_bfd != isec->owner;
11470
11471 if (new_bfd)
bf102f86
AM		 11472 {
11473 htab->toc_bfd = isec->owner;
11474 htab->toc_first_sec = isec;
11475 }
927be08e 11476
bf102f86
AM		 11477 addr = isec->output_offset + isec->output_section->vma;
11478 off = addr - htab->toc_curr;
d77c8a4b
AM		 11479 limit = 0x80008000;
11480 if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc)
11481 limit = 0x10000;
11482 if (off + isec->size > limit)
bf102f86
AM		 11483 {
11484 addr = (htab->toc_first_sec->output_offset
11485 + htab->toc_first_sec->output_section->vma);
11486 htab->toc_curr = addr;
a27e685f 11487 htab->toc_curr &= -TOC_BASE_ALIGN;
bf102f86 11488 }
99877b66 11489
927be08e
AM		 11490 /* toc_curr is the base address of this toc group. Set elf_gp
11491 for the input section to be the offset relative to the
11492 output toc base plus 0x8000. Making the input elf_gp an
11493 offset allows us to move the toc as a whole without
11494 recalculating input elf_gp. */
11495 off = htab->toc_curr - elf_gp (isec->output_section->owner);
11496 off += TOC_BASE_OFF;
11497
11498 /* Die if someone uses a linker script that doesn't keep input
11499 file .toc and .got together. */
a4fd3de5
AM		 11500 if (new_bfd
11501 && elf_gp (isec->owner) != 0
927be08e
AM		 11502 && elf_gp (isec->owner) != off)
11503 return FALSE;
11504
11505 elf_gp (isec->owner) = off;
11506 return TRUE;
4c52953f 11507 }
927be08e
AM		 11508
11509 /* During the second pass toc_first_sec points to the start of
11510 a toc group, and toc_curr is used to track the old elf_gp.
11511 We use toc_bfd to ensure we only look at each bfd once. */
11512 if (htab->toc_bfd == isec->owner)
11513 return TRUE;
11514 htab->toc_bfd = isec->owner;
11515
11516 if (htab->toc_first_sec == NULL
11517 || htab->toc_curr != elf_gp (isec->owner))
11518 {
11519 htab->toc_curr = elf_gp (isec->owner);
11520 htab->toc_first_sec = isec;
11521 }
11522 addr = (htab->toc_first_sec->output_offset
11523 + htab->toc_first_sec->output_section->vma);
11524 off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF;
11525 elf_gp (isec->owner) = off;
11526
11527 return TRUE;
ad8e1ba5
AM		 11528}
11529
927be08e
AM		 11530/* Called via elf_link_hash_traverse to merge GOT entries for global
11531 symbol H. */
11532
11533static bfd_boolean
11534merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
11535{
11536 if (h->root.type == bfd_link_hash_indirect)
11537 return TRUE;
11538
927be08e
AM		 11539 merge_got_entries (&h->got.glist);
11540
11541 return TRUE;
11542}
11543
11544/* Called via elf_link_hash_traverse to allocate GOT entries for global
11545 symbol H. */
11546
11547static bfd_boolean
11548reallocate_got (struct elf_link_hash_entry *h, void *inf)
11549{
11550 struct got_entry *gent;
11551
11552 if (h->root.type == bfd_link_hash_indirect)
11553 return TRUE;
11554
927be08e
AM		 11555 for (gent = h->got.glist; gent != NULL; gent = gent->next)
11556 if (!gent->is_indirect)
11557 allocate_got (h, (struct bfd_link_info *) inf, gent);
11558 return TRUE;
11559}
11560
11561/* Called on the first multitoc pass after the last call to
11562 ppc64_elf_next_toc_section. This function removes duplicate GOT
11563 entries. */
11564
11565bfd_boolean
11566ppc64_elf_layout_multitoc (struct bfd_link_info *info)
ad8e1ba5
AM		 11567{
11568 struct ppc_link_hash_table *htab = ppc_hash_table (info);
927be08e
AM		 11569 struct bfd *ibfd, *ibfd2;
11570 bfd_boolean done_something;
11571
11572 htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd);
ad8e1ba5 11573
7865406b
AM		 11574 if (!htab->do_multi_toc)
11575 return FALSE;
11576
d0fae19d 11577 /* Merge global sym got entries within a toc group. */
927be08e
AM		 11578 elf_link_hash_traverse (&htab->elf, merge_global_got, info);
11579
11580 /* And tlsld_got. */
c72f2fb2 11581 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11582 {
11583 struct got_entry *ent, *ent2;
11584
11585 if (!is_ppc64_elf (ibfd))
11586 continue;
11587
11588 ent = ppc64_tlsld_got (ibfd);
11589 if (!ent->is_indirect
11590 && ent->got.offset != (bfd_vma) -1)
11591 {
c72f2fb2 11592 for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next)
927be08e
AM		 11593 {
11594 if (!is_ppc64_elf (ibfd2))
11595 continue;
11596
11597 ent2 = ppc64_tlsld_got (ibfd2);
11598 if (!ent2->is_indirect
11599 && ent2->got.offset != (bfd_vma) -1
11600 && elf_gp (ibfd2) == elf_gp (ibfd))
11601 {
11602 ent2->is_indirect = TRUE;
11603 ent2->got.ent = ent;
11604 }
11605 }
11606 }
11607 }
11608
11609 /* Zap sizes of got sections. */
33e44f2e
AM		 11610 htab->elf.irelplt->rawsize = htab->elf.irelplt->size;
11611 htab->elf.irelplt->size -= htab->got_reli_size;
927be08e
AM		 11612 htab->got_reli_size = 0;
11613
c72f2fb2 11614 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11615 {
11616 asection *got, *relgot;
11617
11618 if (!is_ppc64_elf (ibfd))
11619 continue;
11620
11621 got = ppc64_elf_tdata (ibfd)->got;
11622 if (got != NULL)
11623 {
11624 got->rawsize = got->size;
11625 got->size = 0;
11626 relgot = ppc64_elf_tdata (ibfd)->relgot;
11627 relgot->rawsize = relgot->size;
11628 relgot->size = 0;
11629 }
11630 }
11631
11632 /* Now reallocate the got, local syms first. We don't need to
11633 allocate section contents again since we never increase size. */
c72f2fb2 11634 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11635 {
11636 struct got_entry **lgot_ents;
11637 struct got_entry **end_lgot_ents;
11638 struct plt_entry **local_plt;
11639 struct plt_entry **end_local_plt;
f961d9dd 11640 unsigned char *lgot_masks;
927be08e
AM		 11641 bfd_size_type locsymcount;
11642 Elf_Internal_Shdr *symtab_hdr;
19e08130 11643 asection *s;
927be08e
AM		 11644
11645 if (!is_ppc64_elf (ibfd))
11646 continue;
11647
11648 lgot_ents = elf_local_got_ents (ibfd);
11649 if (!lgot_ents)
11650 continue;
11651
11652 symtab_hdr = &elf_symtab_hdr (ibfd);
11653 locsymcount = symtab_hdr->sh_info;
11654 end_lgot_ents = lgot_ents + locsymcount;
11655 local_plt = (struct plt_entry **) end_lgot_ents;
11656 end_local_plt = local_plt + locsymcount;
f961d9dd 11657 lgot_masks = (unsigned char *) end_local_plt;
927be08e 11658 s = ppc64_elf_tdata (ibfd)->got;
927be08e
AM		 11659 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
11660 {
11661 struct got_entry *ent;
11662
11663 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
d0fae19d 11664 {
19e08130
AM		 11665 unsigned int ent_size = 8;
11666 unsigned int rel_size = sizeof (Elf64_External_Rela);
11667
d0fae19d
AM		 11668 ent->got.offset = s->size;
11669 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
d0fae19d 11670 {
19e08130
AM		 11671 ent_size *= 2;
11672 rel_size *= 2;
11673 }
11674 s->size += ent_size;
11675 if ((*lgot_masks & PLT_IFUNC) != 0)
11676 {
33e44f2e 11677 htab->elf.irelplt->size += rel_size;
19e08130
AM		 11678 htab->got_reli_size += rel_size;
11679 }
0e1862bb 11680 else if (bfd_link_pic (info))
19e08130
AM		 11681 {
11682 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11683 srel->size += rel_size;
d0fae19d
AM		 11684 }
11685 }
927be08e
AM		 11686 }
11687 }
11688
11689 elf_link_hash_traverse (&htab->elf, reallocate_got, info);
11690
c72f2fb2 11691 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11692 {
11693 struct got_entry *ent;
11694
11695 if (!is_ppc64_elf (ibfd))
11696 continue;
11697
11698 ent = ppc64_tlsld_got (ibfd);
11699 if (!ent->is_indirect
11700 && ent->got.offset != (bfd_vma) -1)
11701 {
11702 asection *s = ppc64_elf_tdata (ibfd)->got;
11703 ent->got.offset = s->size;
11704 s->size += 16;
0e1862bb 11705 if (bfd_link_pic (info))
927be08e
AM		 11706 {
11707 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11708 srel->size += sizeof (Elf64_External_Rela);
11709 }
11710 }
11711 }
11712
33e44f2e 11713 done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size;
927be08e 11714 if (!done_something)
c72f2fb2 11715 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11716 {
11717 asection *got;
11718
11719 if (!is_ppc64_elf (ibfd))
11720 continue;
11721
11722 got = ppc64_elf_tdata (ibfd)->got;
11723 if (got != NULL)
11724 {
11725 done_something = got->rawsize != got->size;
11726 if (done_something)
11727 break;
11728 }
11729 }
11730
11731 if (done_something)
e7d1c40c 11732 (*htab->params->layout_sections_again) ();
927be08e
AM		 11733
11734 /* Set up for second pass over toc sections to recalculate elf_gp
11735 on input sections. */
11736 htab->toc_bfd = NULL;
11737 htab->toc_first_sec = NULL;
11738 htab->second_toc_pass = TRUE;
11739 return done_something;
11740}
11741
11742/* Called after second pass of multitoc partitioning. */
11743
11744void
11745ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info)
11746{
11747 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11748
11749 /* After the second pass, toc_curr tracks the TOC offset used
11750 for code sections below in ppc64_elf_next_input_section. */
3d6f9012 11751 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 11752}
11753
9b5ecbd0
AM		 11754/* No toc references were found in ISEC. If the code in ISEC makes no
11755 calls, then there's no need to use toc adjusting stubs when branching
11756 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM		 11757 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
11758 needed, and 2 if a cyclical call-graph was found but no other reason
11759 for a stub was detected. If called from the top level, a return of
11760 2 means the same as a return of 0. */
9b5ecbd0
AM		 11761
11762static int
4ce794b7 11763toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 11764{
9b5ecbd0 11765 int ret;
70cc837d
AM		 11766
11767 /* Mark this section as checked. */
11768 isec->call_check_done = 1;
9b5ecbd0 11769
772119ce
AM		 11770 /* We know none of our code bearing sections will need toc stubs. */
11771 if ((isec->flags & SEC_LINKER_CREATED) != 0)
11772 return 0;
11773
eea6121a 11774 if (isec->size == 0)
082c50f8
AM		 11775 return 0;
11776
4c52953f
AM		 11777 if (isec->output_section == NULL)
11778 return 0;
11779
4c52953f 11780 ret = 0;
70cc837d 11781 if (isec->reloc_count != 0)
9b5ecbd0 11782 {
70cc837d
AM		 11783 Elf_Internal_Rela *relstart, *rel;
11784 Elf_Internal_Sym *local_syms;
11785 struct ppc_link_hash_table *htab;
2917689a 11786
70cc837d
AM		 11787 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
11788 info->keep_memory);
11789 if (relstart == NULL)
11790 return -1;
90aecf7a 11791
70cc837d
AM		 11792 /* Look for branches to outside of this section. */
11793 local_syms = NULL;
11794 htab = ppc_hash_table (info);
11795 if (htab == NULL)
11796 return -1;
4c52953f 11797
70cc837d 11798 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
4c52953f 11799 {
70cc837d
AM		 11800 enum elf_ppc64_reloc_type r_type;
11801 unsigned long r_symndx;
11802 struct elf_link_hash_entry *h;
11803 struct ppc_link_hash_entry *eh;
11804 Elf_Internal_Sym *sym;
11805 asection *sym_sec;
11806 struct _opd_sec_data *opd;
11807 bfd_vma sym_value;
11808 bfd_vma dest;
11809
11810 r_type = ELF64_R_TYPE (rel->r_info);
11811 if (r_type != R_PPC64_REL24
11812 && r_type != R_PPC64_REL14
11813 && r_type != R_PPC64_REL14_BRTAKEN
11814 && r_type != R_PPC64_REL14_BRNTAKEN)
11815 continue;
4c52953f 11816
70cc837d
AM		 11817 r_symndx = ELF64_R_SYM (rel->r_info);
11818 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
11819 isec->owner))
4c52953f 11820 {
70cc837d
AM		 11821 ret = -1;
11822 break;
11823 }
4c52953f 11824
70cc837d
AM		 11825 /* Calls to dynamic lib functions go through a plt call stub
11826 that uses r2. */
11827 eh = (struct ppc_link_hash_entry *) h;
11828 if (eh != NULL
11829 && (eh->elf.plt.plist != NULL
11830 || (eh->oh != NULL
11831 && ppc_follow_link (eh->oh)->elf.plt.plist != NULL)))
11832 {
11833 ret = 1;
11834 break;
4c52953f
AM		 11835 }
11836
70cc837d
AM		 11837 if (sym_sec == NULL)
11838 /* Ignore other undefined symbols. */
4c52953f 11839 continue;
4c52953f 11840
70cc837d
AM		 11841 /* Assume branches to other sections not included in the
11842 link need stubs too, to cover -R and absolute syms. */
11843 if (sym_sec->output_section == NULL)
11844 {
11845 ret = 1;
11846 break;
11847 }
4c52953f 11848
70cc837d
AM		 11849 if (h == NULL)
11850 sym_value = sym->st_value;
11851 else
11852 {
11853 if (h->root.type != bfd_link_hash_defined
11854 && h->root.type != bfd_link_hash_defweak)
11855 abort ();
11856 sym_value = h->root.u.def.value;
11857 }
11858 sym_value += rel->r_addend;
4c52953f 11859
70cc837d
AM		 11860 /* If this branch reloc uses an opd sym, find the code section. */
11861 opd = get_opd_info (sym_sec);
11862 if (opd != NULL)
11863 {
11864 if (h == NULL && opd->adjust != NULL)
11865 {
11866 long adjust;
4c52953f 11867
92a9c616 11868 adjust = opd->adjust[OPD_NDX (sym_value)];
70cc837d
AM		 11869 if (adjust == -1)
11870 /* Assume deleted functions won't ever be called. */
11871 continue;
11872 sym_value += adjust;
11873 }
4c52953f 11874
aef36ac1
AM		 11875 dest = opd_entry_value (sym_sec, sym_value,
11876 &sym_sec, NULL, FALSE);
70cc837d
AM		 11877 if (dest == (bfd_vma) -1)
11878 continue;
11879 }
11880 else
11881 dest = (sym_value
11882 + sym_sec->output_offset
11883 + sym_sec->output_section->vma);
4c52953f 11884
70cc837d
AM		 11885 /* Ignore branch to self. */
11886 if (sym_sec == isec)
11887 continue;
4c52953f 11888
70cc837d
AM		 11889 /* If the called function uses the toc, we need a stub. */
11890 if (sym_sec->has_toc_reloc
11891 || sym_sec->makes_toc_func_call)
4c52953f 11892 {
70cc837d 11893 ret = 1;
4c52953f
AM		 11894 break;
11895 }
70cc837d
AM		 11896
11897 /* Assume any branch that needs a long branch stub might in fact
11898 need a plt_branch stub. A plt_branch stub uses r2. */
11899 else if (dest - (isec->output_offset
11900 + isec->output_section->vma
6911b7dc
AM		 11901 + rel->r_offset) + (1 << 25)
11902 >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h
11903 ? h->other
11904 : sym->st_other))
4c52953f 11905 {
70cc837d
AM		 11906 ret = 1;
11907 break;
11908 }
11909
11910 /* If calling back to a section in the process of being
11911 tested, we can't say for sure that no toc adjusting stubs
11912 are needed, so don't return zero. */
11913 else if (sym_sec->call_check_in_progress)
11914 ret = 2;
11915
11916 /* Branches to another section that itself doesn't have any TOC
11917 references are OK. Recursively call ourselves to check. */
11918 else if (!sym_sec->call_check_done)
11919 {
11920 int recur;
11921
11922 /* Mark current section as indeterminate, so that other
11923 sections that call back to current won't be marked as
11924 known. */
11925 isec->call_check_in_progress = 1;
11926 recur = toc_adjusting_stub_needed (info, sym_sec);
11927 isec->call_check_in_progress = 0;
11928
4c52953f
AM		 11929 if (recur != 0)
11930 {
70cc837d
AM		 11931 ret = recur;
11932 if (recur != 2)
11933 break;
4c52953f
AM		 11934 }
11935 }
4c52953f 11936 }
70cc837d
AM		 11937
11938 if (local_syms != NULL
11939 && (elf_symtab_hdr (isec->owner).contents
11940 != (unsigned char *) local_syms))
11941 free (local_syms);
11942 if (elf_section_data (isec)->relocs != relstart)
11943 free (relstart);
9b5ecbd0
AM		 11944 }
11945
70cc837d
AM		 11946 if ((ret & 1) == 0
11947 && isec->map_head.s != NULL
11948 && (strcmp (isec->output_section->name, ".init") == 0
11949 || strcmp (isec->output_section->name, ".fini") == 0))
11950 {
11951 if (isec->map_head.s->has_toc_reloc
11952 || isec->map_head.s->makes_toc_func_call)
11953 ret = 1;
11954 else if (!isec->map_head.s->call_check_done)
11955 {
11956 int recur;
11957 isec->call_check_in_progress = 1;
11958 recur = toc_adjusting_stub_needed (info, isec->map_head.s);
11959 isec->call_check_in_progress = 0;
11960 if (recur != 0)
11961 ret = recur;
11962 }
11963 }
11964
11965 if (ret == 1)
11966 isec->makes_toc_func_call = 1;
4c52953f 11967
9b5ecbd0
AM		 11968 return ret;
11969}
11970
721956f4
AM		 11971/* The linker repeatedly calls this function for each input section,
11972 in the order that input sections are linked into output sections.
11973 Build lists of input sections to determine groupings between which
11974 we may insert linker stubs. */
11975
9b5ecbd0 11976bfd_boolean
4ce794b7 11977ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 11978{
11979 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11980
4dfe6ac6
NC		 11981 if (htab == NULL)
11982 return FALSE;
11983
734b6cf9 11984 if ((isec->output_section->flags & SEC_CODE) != 0
6f20ed8a 11985 && isec->output_section->id < htab->sec_info_arr_size)
721956f4 11986 {
3d6f9012
AM		 11987 /* This happens to make the list in reverse order,
11988 which is what we want. */
6f20ed8a
AM		 11989 htab->sec_info[isec->id].u.list
11990 = htab->sec_info[isec->output_section->id].u.list;
11991 htab->sec_info[isec->output_section->id].u.list = isec;
721956f4 11992 }
ad8e1ba5 11993
4c52953f 11994 if (htab->multi_toc_needed)
9b5ecbd0 11995 {
8b974ba3
AM		 11996 /* Analyse sections that aren't already flagged as needing a
11997 valid toc pointer. Exclude .fixup for the linux kernel.
11998 .fixup contains branches, but only back to the function that
11999 hit an exception. */
12000 if (!(isec->has_toc_reloc
12001 || (isec->flags & SEC_CODE) == 0
12002 || strcmp (isec->name, ".fixup") == 0
12003 || isec->call_check_done))
12004 {
12005 if (toc_adjusting_stub_needed (info, isec) < 0)
6683a28d 12006 return FALSE;
8b974ba3
AM		 12007 }
12008 /* Make all sections use the TOC assigned for this object file.
12009 This will be wrong for pasted sections; We fix that in
12010 check_pasted_section(). */
12011 if (elf_gp (isec->owner) != 0)
12012 htab->toc_curr = elf_gp (isec->owner);
12013 }
12014
6f20ed8a 12015 htab->sec_info[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 12016 return TRUE;
721956f4
AM		 12017}
12018
70cc837d
AM		 12019/* Check that all .init and .fini sections use the same toc, if they
12020 have toc relocs. */
12021
12022static bfd_boolean
12023check_pasted_section (struct bfd_link_info *info, const char *name)
12024{
12025 asection *o = bfd_get_section_by_name (info->output_bfd, name);
12026
12027 if (o != NULL)
12028 {
12029 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12030 bfd_vma toc_off = 0;
12031 asection *i;
12032
12033 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
12034 if (i->has_toc_reloc)
12035 {
12036 if (toc_off == 0)
6f20ed8a
AM		 12037 toc_off = htab->sec_info[i->id].toc_off;
12038 else if (toc_off != htab->sec_info[i->id].toc_off)
70cc837d
AM		 12039 return FALSE;
12040 }
6683a28d
AM		 12041
12042 if (toc_off == 0)
12043 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
12044 if (i->makes_toc_func_call)
12045 {
6f20ed8a 12046 toc_off = htab->sec_info[i->id].toc_off;
6683a28d
AM		 12047 break;
12048 }
12049
70cc837d
AM		 12050 /* Make sure the whole pasted function uses the same toc offset. */
12051 if (toc_off != 0)
12052 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
6f20ed8a 12053 htab->sec_info[i->id].toc_off = toc_off;
70cc837d
AM		 12054 }
12055 return TRUE;
12056}
12057
12058bfd_boolean
12059ppc64_elf_check_init_fini (struct bfd_link_info *info)
12060{
12061 return (check_pasted_section (info, ".init")
12062 & check_pasted_section (info, ".fini"));
12063}
12064
721956f4
AM		 12065/* See whether we can group stub sections together. Grouping stub
12066 sections may result in fewer stubs. More importantly, we need to
12067 put all .init* and .fini* stubs at the beginning of the .init or
12068 .fini output sections respectively, because glibc splits the
12069 _init and _fini functions into multiple parts. Putting a stub in
12070 the middle of a function is not a good idea. */
12071
6f20ed8a
AM		 12072static bfd_boolean
12073group_sections (struct bfd_link_info *info,
4ce794b7
AM		 12074 bfd_size_type stub_group_size,
12075 bfd_boolean stubs_always_before_branch)
721956f4 12076{
6f20ed8a
AM		 12077 struct ppc_link_hash_table *htab;
12078 asection *osec;
7c8fe5c4
AM		 12079 bfd_boolean suppress_size_errors;
12080
6f20ed8a
AM		 12081 htab = ppc_hash_table (info);
12082 if (htab == NULL)
12083 return FALSE;
12084
7c8fe5c4 12085 suppress_size_errors = FALSE;
7c8fe5c4
AM		 12086 if (stub_group_size == 1)
12087 {
12088 /* Default values. */
12089 if (stubs_always_before_branch)
09f92717 12090 stub_group_size = 0x1e00000;
7c8fe5c4 12091 else
09f92717 12092 stub_group_size = 0x1c00000;
7c8fe5c4
AM		 12093 suppress_size_errors = TRUE;
12094 }
12095
6f20ed8a 12096 for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next)
721956f4 12097 {
6f20ed8a
AM		 12098 asection *tail;
12099
12100 if (osec->id >= htab->sec_info_arr_size)
12101 continue;
12102
12103 tail = htab->sec_info[osec->id].u.list;
734b6cf9 12104 while (tail != NULL)
721956f4 12105 {
734b6cf9
AM		 12106 asection *curr;
12107 asection *prev;
12108 bfd_size_type total;
12109 bfd_boolean big_sec;
12110 bfd_vma curr_toc;
6f20ed8a 12111 struct map_stub *group;
09f92717 12112 bfd_size_type group_size;
734b6cf9
AM		 12113
12114 curr = tail;
eea6121a 12115 total = tail->size;
09f92717
AM		 12116 group_size = (ppc64_elf_section_data (tail) != NULL
12117 && ppc64_elf_section_data (tail)->has_14bit_branch
12118 ? stub_group_size >> 10 : stub_group_size);
12119
12120 big_sec = total > group_size;
7c8fe5c4 12121 if (big_sec && !suppress_size_errors)
695344c0 12122 /* xgettext:c-format */
4eca0228
AM		 12123 _bfd_error_handler (_("%B section %A exceeds stub group size"),
12124 tail->owner, tail);
6f20ed8a 12125 curr_toc = htab->sec_info[tail->id].toc_off;
734b6cf9 12126
6f20ed8a 12127 while ((prev = htab->sec_info[curr->id].u.list) != NULL
734b6cf9 12128 && ((total += curr->output_offset - prev->output_offset)
6bee8834
AM		 12129 < (ppc64_elf_section_data (prev) != NULL
12130 && ppc64_elf_section_data (prev)->has_14bit_branch
09f92717 12131 ? (group_size = stub_group_size >> 10) : group_size))
6f20ed8a 12132 && htab->sec_info[prev->id].toc_off == curr_toc)
734b6cf9
AM		 12133 curr = prev;
12134
12135 /* OK, the size from the start of CURR to the end is less
09f92717 12136 than group_size and thus can be handled by one stub
734b6cf9 12137 section. (or the tail section is itself larger than
09f92717
AM		 12138 group_size, in which case we may be toast.) We should
12139 really be keeping track of the total size of stubs added
12140 here, as stubs contribute to the final output section
12141 size. That's a little tricky, and this way will only
12142 break if stubs added make the total size more than 2^25,
12143 ie. for the default stub_group_size, if stubs total more
12144 than 2097152 bytes, or nearly 75000 plt call stubs. */
6f20ed8a
AM		 12145 group = bfd_alloc (curr->owner, sizeof (*group));
12146 if (group == NULL)
12147 return FALSE;
12148 group->link_sec = curr;
12149 group->stub_sec = NULL;
a4b6fadd
AM		 12150 group->needs_save_res = 0;
12151 group->next = htab->group;
12152 htab->group = group;
734b6cf9 12153 do
721956f4 12154 {
6f20ed8a 12155 prev = htab->sec_info[tail->id].u.list;
734b6cf9 12156 /* Set up this stub group. */
6f20ed8a 12157 htab->sec_info[tail->id].u.group = group;
721956f4 12158 }
734b6cf9
AM		 12159 while (tail != curr && (tail = prev) != NULL);
12160
09f92717 12161 /* But wait, there's more! Input sections up to group_size
734b6cf9
AM		 12162 bytes before the stub section can be handled by it too.
12163 Don't do this if we have a really large section after the
12164 stubs, as adding more stubs increases the chance that
12165 branches may not reach into the stub section. */
12166 if (!stubs_always_before_branch && !big_sec)
12167 {
12168 total = 0;
12169 while (prev != NULL
12170 && ((total += tail->output_offset - prev->output_offset)
6bee8834
AM		 12171 < (ppc64_elf_section_data (prev) != NULL
12172 && ppc64_elf_section_data (prev)->has_14bit_branch
09f92717 12173 ? (group_size = stub_group_size >> 10) : group_size))
6f20ed8a 12174 && htab->sec_info[prev->id].toc_off == curr_toc)
734b6cf9
AM		 12175 {
12176 tail = prev;
6f20ed8a
AM		 12177 prev = htab->sec_info[tail->id].u.list;
12178 htab->sec_info[tail->id].u.group = group;
734b6cf9
AM		 12179 }
12180 }
12181 tail = prev;
721956f4
AM		 12182 }
12183 }
6f20ed8a 12184 return TRUE;
721956f4
AM		 12185}
12186
58d180e8
AM		 12187static const unsigned char glink_eh_frame_cie[] =
12188{
12189 0, 0, 0, 16, /* length. */
12190 0, 0, 0, 0, /* id. */
12191 1, /* CIE version. */
12192 'z', 'R', 0, /* Augmentation string. */
12193 4, /* Code alignment. */
12194 0x78, /* Data alignment. */
12195 65, /* RA reg. */
12196 1, /* Augmentation size. */
12197 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
da44f4e5
AM		 12198 DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */
12199 0, 0, 0, 0
58d180e8
AM		 12200};
12201
d969d15f
AM		 12202/* Stripping output sections is normally done before dynamic section
12203 symbols have been allocated. This function is called later, and
12204 handles cases like htab->brlt which is mapped to its own output
12205 section. */
12206
12207static void
12208maybe_strip_output (struct bfd_link_info *info, asection *isec)
12209{
12210 if (isec->size == 0
12211 && isec->output_section->size == 0
53d8967a 12212 && !(isec->output_section->flags & SEC_KEEP)
d969d15f
AM		 12213 && !bfd_section_removed_from_list (info->output_bfd,
12214 isec->output_section)
12215 && elf_section_data (isec->output_section)->dynindx == 0)
12216 {
12217 isec->output_section->flags |= SEC_EXCLUDE;
12218 bfd_section_list_remove (info->output_bfd, isec->output_section);
12219 info->output_bfd->section_count--;
12220 }
12221}
12222
721956f4
AM		 12223/* Determine and set the size of the stub section for a final link.
12224
12225 The basic idea here is to examine all the relocations looking for
12226 PC-relative calls to a target that is unreachable with a "bl"
12227 instruction. */
12228
b34976b6 12229bfd_boolean
e7d1c40c 12230ppc64_elf_size_stubs (struct bfd_link_info *info)
721956f4
AM		 12231{
12232 bfd_size_type stub_group_size;
b34976b6 12233 bfd_boolean stubs_always_before_branch;
721956f4
AM		 12234 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12235
4dfe6ac6
NC		 12236 if (htab == NULL)
12237 return FALSE;
12238
0e1862bb 12239 if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info))
e7d1c40c 12240 htab->params->plt_thread_safe = 1;
b9e5796b 12241 if (!htab->opd_abi)
e7d1c40c
AM		 12242 htab->params->plt_thread_safe = 0;
12243 else if (htab->params->plt_thread_safe == -1)
794e51c0 12244 {
e2458743 12245 static const char *const thread_starter[] =
794e51c0
AM		 12246 {
12247 "pthread_create",
12248 /* libstdc++ */
12249 "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE",
12250 /* librt */
12251 "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio",
12252 "mq_notify", "create_timer",
12253 /* libanl */
12254 "getaddrinfo_a",
12255 /* libgomp */
2300b5a1 12256 "GOMP_parallel",
794e51c0 12257 "GOMP_parallel_start",
2300b5a1 12258 "GOMP_parallel_loop_static",
794e51c0 12259 "GOMP_parallel_loop_static_start",
2300b5a1 12260 "GOMP_parallel_loop_dynamic",
794e51c0 12261 "GOMP_parallel_loop_dynamic_start",
2300b5a1 12262 "GOMP_parallel_loop_guided",
794e51c0 12263 "GOMP_parallel_loop_guided_start",
2300b5a1 12264 "GOMP_parallel_loop_runtime",
794e51c0 12265 "GOMP_parallel_loop_runtime_start",
2300b5a1 12266 "GOMP_parallel_sections",
68ffbac6 12267 "GOMP_parallel_sections_start",
f9dffbf0
AM		 12268 /* libgo */
12269 "__go_go",
794e51c0
AM		 12270 };
12271 unsigned i;
12272
a4b6fadd 12273 for (i = 0; i < ARRAY_SIZE (thread_starter); i++)
794e51c0
AM		 12274 {
12275 struct elf_link_hash_entry *h;
12276 h = elf_link_hash_lookup (&htab->elf, thread_starter[i],
12277 FALSE, FALSE, TRUE);
e7d1c40c
AM		 12278 htab->params->plt_thread_safe = h != NULL && h->ref_regular;
12279 if (htab->params->plt_thread_safe)
794e51c0
AM		 12280 break;
12281 }
12282 }
e7d1c40c
AM		 12283 stubs_always_before_branch = htab->params->group_size < 0;
12284 if (htab->params->group_size < 0)
12285 stub_group_size = -htab->params->group_size;
721956f4 12286 else
e7d1c40c 12287 stub_group_size = htab->params->group_size;
721956f4 12288
6f20ed8a
AM		 12289 if (!group_sections (info, stub_group_size, stubs_always_before_branch))
12290 return FALSE;
721956f4 12291
c9301e31
AM		 12292#define STUB_SHRINK_ITER 20
12293 /* Loop until no stubs added. After iteration 20 of this loop we may
12294 exit on a stub section shrinking. This is to break out of a
12295 pathological case where adding stubs on one iteration decreases
12296 section gaps (perhaps due to alignment), which then requires
12297 fewer or smaller stubs on the next iteration. */
12298
721956f4
AM		 12299 while (1)
12300 {
12301 bfd *input_bfd;
12302 unsigned int bfd_indx;
a4b6fadd 12303 struct map_stub *group;
721956f4 12304 asection *stub_sec;
721956f4
AM		 12305
12306 htab->stub_iteration += 1;
721956f4
AM		 12307
12308 for (input_bfd = info->input_bfds, bfd_indx = 0;
12309 input_bfd != NULL;
c72f2fb2 12310 input_bfd = input_bfd->link.next, bfd_indx++)
721956f4
AM		 12311 {
12312 Elf_Internal_Shdr *symtab_hdr;
12313 asection *section;
6cdc0ccc 12314 Elf_Internal_Sym *local_syms = NULL;
721956f4 12315
0c8d6e5c 12316 if (!is_ppc64_elf (input_bfd))
67f93c31
AM		 12317 continue;
12318
721956f4 12319 /* We'll need the symbol table in a second. */
0ffa91dd 12320 symtab_hdr = &elf_symtab_hdr (input_bfd);
721956f4
AM		 12321 if (symtab_hdr->sh_info == 0)
12322 continue;
12323
721956f4
AM		 12324 /* Walk over each section attached to the input bfd. */
12325 for (section = input_bfd->sections;
12326 section != NULL;
12327 section = section->next)
12328 {
721956f4 12329 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 12330
12331 /* If there aren't any relocs, then there's nothing more
12332 to do. */
12333 if ((section->flags & SEC_RELOC) == 0
12c0f757
AM		 12334 || (section->flags & SEC_ALLOC) == 0
12335 || (section->flags & SEC_LOAD) == 0
12336 || (section->flags & SEC_CODE) == 0
721956f4
AM		 12337 || section->reloc_count == 0)
12338 continue;
12339
12340 /* If this section is a link-once section that will be
12341 discarded, then don't create any stubs. */
12342 if (section->output_section == NULL
927be08e 12343 || section->output_section->owner != info->output_bfd)
721956f4
AM		 12344 continue;
12345
1e2f5b6e
AM		 12346 /* Get the relocs. */
12347 internal_relocs
4ce794b7 12348 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 12349 info->keep_memory);
721956f4 12350 if (internal_relocs == NULL)
1e2f5b6e 12351 goto error_ret_free_local;
721956f4
AM		 12352
12353 /* Now examine each relocation. */
12354 irela = internal_relocs;
12355 irelaend = irela + section->reloc_count;
12356 for (; irela < irelaend; irela++)
12357 {
4ce794b7
AM		 12358 enum elf_ppc64_reloc_type r_type;
12359 unsigned int r_indx;
721956f4
AM		 12360 enum ppc_stub_type stub_type;
12361 struct ppc_stub_hash_entry *stub_entry;
8387904d 12362 asection *sym_sec, *code_sec;
e054468f 12363 bfd_vma sym_value, code_value;
721956f4 12364 bfd_vma destination;
6911b7dc 12365 unsigned long local_off;
8843416a 12366 bfd_boolean ok_dest;
721956f4 12367 struct ppc_link_hash_entry *hash;
8387904d 12368 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 12369 struct elf_link_hash_entry *h;
12370 Elf_Internal_Sym *sym;
721956f4
AM		 12371 char *stub_name;
12372 const asection *id_sec;
74f0fb50 12373 struct _opd_sec_data *opd;
e054468f 12374 struct plt_entry *plt_ent;
721956f4
AM		 12375
12376 r_type = ELF64_R_TYPE (irela->r_info);
12377 r_indx = ELF64_R_SYM (irela->r_info);
12378
4ce794b7 12379 if (r_type >= R_PPC64_max)
721956f4
AM		 12380 {
12381 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 12382 goto error_ret_free_internal;
721956f4
AM		 12383 }
12384
12385 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 12386 if (r_type != R_PPC64_REL24
12387 && r_type != R_PPC64_REL14
12388 && r_type != R_PPC64_REL14_BRTAKEN
12389 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 12390 continue;
12391
12392 /* Now determine the call target, its name, value,
12393 section. */
411e1bfb
AM		 12394 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
12395 r_indx, input_bfd))
12396 goto error_ret_free_internal;
12397 hash = (struct ppc_link_hash_entry *) h;
12398
8843416a 12399 ok_dest = FALSE;
8387904d 12400 fdh = NULL;
7fe2b9a6 12401 sym_value = 0;
411e1bfb 12402 if (hash == NULL)
721956f4 12403 {
411e1bfb 12404 sym_value = sym->st_value;
c27b8c2a
AM		 12405 if (sym_sec != NULL
12406 && sym_sec->output_section != NULL)
12407 ok_dest = TRUE;
721956f4 12408 }
7fe2b9a6
AM		 12409 else if (hash->elf.root.type == bfd_link_hash_defined
12410 || hash->elf.root.type == bfd_link_hash_defweak)
12411 {
12412 sym_value = hash->elf.root.u.def.value;
12413 if (sym_sec->output_section != NULL)
12414 ok_dest = TRUE;
12415 }
12416 else if (hash->elf.root.type == bfd_link_hash_undefweak
12417 || hash->elf.root.type == bfd_link_hash_undefined)
721956f4 12418 {
99877b66 12419 /* Recognise an old ABI func code entry sym, and
7fe2b9a6
AM		 12420 use the func descriptor sym instead if it is
12421 defined. */
ceb1f1ef 12422 if (hash->elf.root.root.string[0] == '.'
b31867b6 12423 && (fdh = lookup_fdh (hash, htab)) != NULL)
8387904d 12424 {
8387904d
AM		 12425 if (fdh->elf.root.type == bfd_link_hash_defined
12426 || fdh->elf.root.type == bfd_link_hash_defweak)
12427 {
12428 sym_sec = fdh->elf.root.u.def.section;
12429 sym_value = fdh->elf.root.u.def.value;
12430 if (sym_sec->output_section != NULL)
12431 ok_dest = TRUE;
12432 }
99877b66
AM		 12433 else
12434 fdh = NULL;
8387904d 12435 }
7fe2b9a6
AM		 12436 }
12437 else
12438 {
12439 bfd_set_error (bfd_error_bad_value);
12440 goto error_ret_free_internal;
721956f4
AM		 12441 }
12442
8843416a 12443 destination = 0;
6911b7dc 12444 local_off = 0;
8843416a
AM		 12445 if (ok_dest)
12446 {
12447 sym_value += irela->r_addend;
12448 destination = (sym_value
12449 + sym_sec->output_offset
12450 + sym_sec->output_section->vma);
6911b7dc
AM		 12451 local_off = PPC64_LOCAL_ENTRY_OFFSET (hash
12452 ? hash->elf.other
12453 : sym->st_other);
8843416a
AM		 12454 }
12455
8387904d 12456 code_sec = sym_sec;
e054468f 12457 code_value = sym_value;
74f0fb50
AM		 12458 opd = get_opd_info (sym_sec);
12459 if (opd != NULL)
8387904d
AM		 12460 {
12461 bfd_vma dest;
12462
74f0fb50 12463 if (hash == NULL && opd->adjust != NULL)
8387904d 12464 {
51aecdc5 12465 long adjust = opd->adjust[OPD_NDX (sym_value)];
8387904d
AM		 12466 if (adjust == -1)
12467 continue;
e054468f 12468 code_value += adjust;
8387904d
AM		 12469 sym_value += adjust;
12470 }
12471 dest = opd_entry_value (sym_sec, sym_value,
aef36ac1 12472 &code_sec, &code_value, FALSE);
8387904d
AM		 12473 if (dest != (bfd_vma) -1)
12474 {
12475 destination = dest;
12476 if (fdh != NULL)
12477 {
12478 /* Fixup old ABI sym to point at code
12479 entry. */
99877b66 12480 hash->elf.root.type = bfd_link_hash_defweak;
8387904d 12481 hash->elf.root.u.def.section = code_sec;
e054468f 12482 hash->elf.root.u.def.value = code_value;
8387904d
AM		 12483 }
12484 }
12485 }
12486
721956f4 12487 /* Determine what (if any) linker stub is needed. */
e054468f 12488 plt_ent = NULL;
721956f4 12489 stub_type = ppc_type_of_stub (section, irela, &hash,
6911b7dc
AM		 12490 &plt_ent, destination,
12491 local_off);
ad8e1ba5
AM		 12492
12493 if (stub_type != ppc_stub_plt_call)
12494 {
12495 /* Check whether we need a TOC adjusting stub.
12496 Since the linker pastes together pieces from
12497 different object files when creating the
12498 _init and _fini functions, it may be that a
12499 call to what looks like a local sym is in
12500 fact a call needing a TOC adjustment. */
8387904d
AM		 12501 if (code_sec != NULL
12502 && code_sec->output_section != NULL
6f20ed8a
AM		 12503 && (htab->sec_info[code_sec->id].toc_off
12504 != htab->sec_info[section->id].toc_off)
4c52953f
AM		 12505 && (code_sec->has_toc_reloc
12506 || code_sec->makes_toc_func_call))
ad8e1ba5
AM		 12507 stub_type = ppc_stub_long_branch_r2off;
12508 }
12509
721956f4
AM		 12510 if (stub_type == ppc_stub_none)
12511 continue;
12512
411e1bfb
AM		 12513 /* __tls_get_addr calls might be eliminated. */
12514 if (stub_type != ppc_stub_plt_call
12515 && hash != NULL
8387904d
AM		 12516 && (hash == htab->tls_get_addr
12517 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 12518 && section->has_tls_reloc
12519 && irela != internal_relocs)
12520 {
12521 /* Get tls info. */
f961d9dd 12522 unsigned char *tls_mask;
411e1bfb 12523
3a71aa26 12524 if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms,
411e1bfb
AM		 12525 irela - 1, input_bfd))
12526 goto error_ret_free_internal;
e7b938ca 12527 if (*tls_mask != 0)
411e1bfb
AM		 12528 continue;
12529 }
12530
3b421ab3
AM		 12531 if (stub_type == ppc_stub_plt_call
12532 && irela + 1 < irelaend
12533 && irela[1].r_offset == irela->r_offset + 4
794e51c0
AM		 12534 && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE)
12535 {
12536 if (!tocsave_find (htab, INSERT,
12537 &local_syms, irela + 1, input_bfd))
12538 goto error_ret_free_internal;
12539 }
12540 else if (stub_type == ppc_stub_plt_call)
12541 stub_type = ppc_stub_plt_call_r2save;
3b421ab3 12542
721956f4 12543 /* Support for grouping stub sections. */
6f20ed8a 12544 id_sec = htab->sec_info[section->id].u.group->link_sec;
721956f4
AM		 12545
12546 /* Get the name of this stub. */
12547 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
12548 if (!stub_name)
12549 goto error_ret_free_internal;
12550
12551 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 12552 stub_name, FALSE, FALSE);
721956f4
AM		 12553 if (stub_entry != NULL)
12554 {
12555 /* The proper stub has already been created. */
12556 free (stub_name);
794e51c0
AM		 12557 if (stub_type == ppc_stub_plt_call_r2save)
12558 stub_entry->stub_type = stub_type;
721956f4
AM		 12559 continue;
12560 }
12561
25f53a85 12562 stub_entry = ppc_add_stub (stub_name, section, info);
721956f4
AM		 12563 if (stub_entry == NULL)
12564 {
12565 free (stub_name);
6cdc0ccc
AM		 12566 error_ret_free_internal:
12567 if (elf_section_data (section)->relocs == NULL)
12568 free (internal_relocs);
12569 error_ret_free_local:
12570 if (local_syms != NULL
12571 && (symtab_hdr->contents
12572 != (unsigned char *) local_syms))
12573 free (local_syms);
b34976b6 12574 return FALSE;
721956f4
AM		 12575 }
12576
ad8e1ba5 12577 stub_entry->stub_type = stub_type;
794e51c0
AM		 12578 if (stub_type != ppc_stub_plt_call
12579 && stub_type != ppc_stub_plt_call_r2save)
e054468f
AM		 12580 {
12581 stub_entry->target_value = code_value;
12582 stub_entry->target_section = code_sec;
12583 }
12584 else
12585 {
12586 stub_entry->target_value = sym_value;
12587 stub_entry->target_section = sym_sec;
12588 }
721956f4 12589 stub_entry->h = hash;
e054468f 12590 stub_entry->plt_ent = plt_ent;
6911b7dc 12591 stub_entry->other = hash ? hash->elf.other : sym->st_other;
ee75fd95
AM		 12592
12593 if (stub_entry->h != NULL)
12594 htab->stub_globals += 1;
721956f4
AM		 12595 }
12596
12597 /* We're done with the internal relocs, free them. */
6cdc0ccc 12598 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 12599 free (internal_relocs);
721956f4 12600 }
6cdc0ccc
AM		 12601
12602 if (local_syms != NULL
12603 && symtab_hdr->contents != (unsigned char *) local_syms)
12604 {
12605 if (!info->keep_memory)
12606 free (local_syms);
12607 else
12608 symtab_hdr->contents = (unsigned char *) local_syms;
12609 }
721956f4
AM		 12610 }
12611
5c3dead3 12612 /* We may have added some stubs. Find out the new size of the
721956f4 12613 stub sections. */
e7d1c40c 12614 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 12615 stub_sec != NULL;
12616 stub_sec = stub_sec->next)
e717da7e 12617 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 12618 {
5c3dead3 12619 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM		 12620 stub_sec->size = 0;
12621 stub_sec->reloc_count = 0;
84f5d08e 12622 stub_sec->flags &= ~SEC_RELOC;
ee75fd95 12623 }
eea6121a
AM		 12624
12625 htab->brlt->size = 0;
84f5d08e
AM		 12626 htab->brlt->reloc_count = 0;
12627 htab->brlt->flags &= ~SEC_RELOC;
ee75fd95 12628 if (htab->relbrlt != NULL)
eea6121a 12629 htab->relbrlt->size = 0;
721956f4 12630
63bc6f6c 12631 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 12632
a4b6fadd
AM		 12633 for (group = htab->group; group != NULL; group = group->next)
12634 if (group->needs_save_res)
12635 group->stub_sec->size += htab->sfpr->size;
12636
176a0d42
AM		 12637 if (info->emitrelocations
12638 && htab->glink != NULL && htab->glink->size != 0)
12639 {
12640 htab->glink->reloc_count = 1;
12641 htab->glink->flags |= SEC_RELOC;
12642 }
12643
58d180e8
AM		 12644 if (htab->glink_eh_frame != NULL
12645 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
9a2a56cc 12646 && htab->glink_eh_frame->output_section->size != 0)
58d180e8 12647 {
4bbe044a 12648 size_t size = 0, align;
58d180e8 12649
e7d1c40c 12650 for (stub_sec = htab->params->stub_bfd->sections;
58d180e8
AM		 12651 stub_sec != NULL;
12652 stub_sec = stub_sec->next)
12653 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
da44f4e5 12654 size += 24;
58d180e8
AM		 12655 if (htab->glink != NULL && htab->glink->size != 0)
12656 size += 24;
12657 if (size != 0)
12658 size += sizeof (glink_eh_frame_cie);
4bbe044a
AM		 12659 align = 1;
12660 align <<= htab->glink_eh_frame->output_section->alignment_power;
12661 align -= 1;
12662 size = (size + align) & ~align;
58d180e8
AM		 12663 htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size;
12664 htab->glink_eh_frame->size = size;
12665 }
12666
e7d1c40c
AM		 12667 if (htab->params->plt_stub_align != 0)
12668 for (stub_sec = htab->params->stub_bfd->sections;
794e51c0
AM		 12669 stub_sec != NULL;
12670 stub_sec = stub_sec->next)
12671 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
e7d1c40c
AM		 12672 stub_sec->size = ((stub_sec->size
12673 + (1 << htab->params->plt_stub_align) - 1)
29f628db 12674 & -(1 << htab->params->plt_stub_align));
794e51c0 12675
e7d1c40c 12676 for (stub_sec = htab->params->stub_bfd->sections;
5c3dead3
AM		 12677 stub_sec != NULL;
12678 stub_sec = stub_sec->next)
12679 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
c9301e31
AM		 12680 && stub_sec->rawsize != stub_sec->size
12681 && (htab->stub_iteration <= STUB_SHRINK_ITER
12682 || stub_sec->rawsize < stub_sec->size))
5c3dead3
AM		 12683 break;
12684
58d180e8
AM		 12685 if (stub_sec == NULL
12686 && (htab->glink_eh_frame == NULL
12687 || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size))
5c3dead3
AM		 12688 break;
12689
721956f4 12690 /* Ask the linker to do its stuff. */
e7d1c40c 12691 (*htab->params->layout_sections_again) ();
721956f4
AM		 12692 }
12693
da44f4e5
AM		 12694 if (htab->glink_eh_frame != NULL
12695 && htab->glink_eh_frame->size != 0)
12696 {
12697 bfd_vma val;
12698 bfd_byte *p, *last_fde;
12699 size_t last_fde_len, size, align, pad;
12700 asection *stub_sec;
12701
12702 p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size);
12703 if (p == NULL)
12704 return FALSE;
12705 htab->glink_eh_frame->contents = p;
12706 last_fde = p;
12707
12708 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
12709 /* CIE length (rewrite in case little-endian). */
12710 last_fde_len = sizeof (glink_eh_frame_cie) - 4;
12711 bfd_put_32 (htab->elf.dynobj, last_fde_len, p);
12712 p += sizeof (glink_eh_frame_cie);
12713
12714 for (stub_sec = htab->params->stub_bfd->sections;
12715 stub_sec != NULL;
12716 stub_sec = stub_sec->next)
12717 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12718 {
12719 last_fde = p;
12720 last_fde_len = 20;
12721 /* FDE length. */
12722 bfd_put_32 (htab->elf.dynobj, 20, p);
12723 p += 4;
12724 /* CIE pointer. */
12725 val = p - htab->glink_eh_frame->contents;
12726 bfd_put_32 (htab->elf.dynobj, val, p);
12727 p += 4;
12728 /* Offset to stub section, written later. */
12729 p += 4;
12730 /* stub section size. */
12731 bfd_put_32 (htab->elf.dynobj, stub_sec->size, p);
12732 p += 4;
12733 /* Augmentation. */
12734 p += 1;
12735 /* Pad. */
12736 p += 7;
12737 }
12738 if (htab->glink != NULL && htab->glink->size != 0)
12739 {
12740 last_fde = p;
12741 last_fde_len = 20;
12742 /* FDE length. */
12743 bfd_put_32 (htab->elf.dynobj, 20, p);
12744 p += 4;
12745 /* CIE pointer. */
12746 val = p - htab->glink_eh_frame->contents;
12747 bfd_put_32 (htab->elf.dynobj, val, p);
12748 p += 4;
12749 /* Offset to .glink, written later. */
12750 p += 4;
12751 /* .glink size. */
12752 bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p);
12753 p += 4;
12754 /* Augmentation. */
12755 p += 1;
12756
12757 *p++ = DW_CFA_advance_loc + 1;
12758 *p++ = DW_CFA_register;
12759 *p++ = 65;
9f08fa5c 12760 *p++ = htab->opd_abi ? 12 : 0;
da44f4e5
AM		 12761 *p++ = DW_CFA_advance_loc + 4;
12762 *p++ = DW_CFA_restore_extended;
12763 *p++ = 65;
12764 }
12765 /* Subsume any padding into the last FDE if user .eh_frame
12766 sections are aligned more than glink_eh_frame. Otherwise any
12767 zero padding will be seen as a terminator. */
12768 size = p - htab->glink_eh_frame->contents;
12769 align = 1;
12770 align <<= htab->glink_eh_frame->output_section->alignment_power;
12771 align -= 1;
12772 pad = ((size + align) & ~align) - size;
12773 htab->glink_eh_frame->size = size + pad;
12774 bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde);
12775 }
12776
d969d15f
AM		 12777 maybe_strip_output (info, htab->brlt);
12778 if (htab->glink_eh_frame != NULL)
12779 maybe_strip_output (info, htab->glink_eh_frame);
721956f4 12780
b34976b6 12781 return TRUE;
721956f4
AM		 12782}
12783
12784/* Called after we have determined section placement. If sections
805fc799 12785 move, we'll be called again. Provide a value for TOCstart. */
721956f4 12786
805fc799 12787bfd_vma
1c865ab2 12788ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd)
721956f4 12789{
805fc799 12790 asection *s;
a27e685f 12791 bfd_vma TOCstart, adjust;
721956f4 12792
43417696
AM		 12793 if (info != NULL)
12794 {
12795 struct elf_link_hash_entry *h;
12796 struct elf_link_hash_table *htab = elf_hash_table (info);
12797
12798 if (is_elf_hash_table (htab)
12799 && htab->hgot != NULL)
12800 h = htab->hgot;
12801 else
12802 {
12803 h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE);
12804 if (is_elf_hash_table (htab))
12805 htab->hgot = h;
12806 }
12807 if (h != NULL
12808 && h->root.type == bfd_link_hash_defined
12809 && !h->root.linker_def
12810 && (!is_elf_hash_table (htab)
12811 || h->def_regular))
12812 {
12813 TOCstart = (h->root.u.def.value - TOC_BASE_OFF
12814 + h->root.u.def.section->output_offset
12815 + h->root.u.def.section->output_section->vma);
12816 _bfd_set_gp_value (obfd, TOCstart);
12817 return TOCstart;
12818 }
12819 }
12820
805fc799
AM		 12821 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
12822 order. The TOC starts where the first of these sections starts. */
12823 s = bfd_get_section_by_name (obfd, ".got");
e054468f 12824 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12825 s = bfd_get_section_by_name (obfd, ".toc");
e054468f 12826 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12827 s = bfd_get_section_by_name (obfd, ".tocbss");
e054468f 12828 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12829 s = bfd_get_section_by_name (obfd, ".plt");
e054468f 12830 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799
AM		 12831 {
12832 /* This may happen for
12833 o references to TOC base (SYM@toc / TOC[tc0]) without a
12834 .toc directive
12835 o bad linker script
12836 o --gc-sections and empty TOC sections
12837
12838 FIXME: Warn user? */
12839
12840 /* Look for a likely section. We probably won't even be
12841 using TOCstart. */
12842 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM		 12843 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY
12844 | SEC_EXCLUDE))
805fc799
AM		 12845 == (SEC_ALLOC | SEC_SMALL_DATA))
12846 break;
721956f4 12847 if (s == NULL)
805fc799 12848 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 12849 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE))
805fc799
AM		 12850 == (SEC_ALLOC | SEC_SMALL_DATA))
12851 break;
721956f4 12852 if (s == NULL)
805fc799 12853 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM		 12854 if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE))
12855 == SEC_ALLOC)
805fc799 12856 break;
721956f4 12857 if (s == NULL)
805fc799 12858 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 12859 if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC)
805fc799
AM		 12860 break;
12861 }
721956f4 12862
805fc799
AM		 12863 TOCstart = 0;
12864 if (s != NULL)
12865 TOCstart = s->output_section->vma + s->output_offset;
721956f4 12866
a27e685f
AM		 12867 /* Force alignment. */
12868 adjust = TOCstart & (TOC_BASE_ALIGN - 1);
12869 TOCstart -= adjust;
1c865ab2
AM		 12870 _bfd_set_gp_value (obfd, TOCstart);
12871
810d4e75 12872 if (info != NULL && s != NULL)
1c865ab2
AM		 12873 {
12874 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12875
810d4e75
AM		 12876 if (htab != NULL)
12877 {
12878 if (htab->elf.hgot != NULL)
12879 {
a27e685f 12880 htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust;
810d4e75
AM		 12881 htab->elf.hgot->root.u.def.section = s;
12882 }
12883 }
12884 else
1c865ab2 12885 {
810d4e75
AM		 12886 struct bfd_link_hash_entry *bh = NULL;
12887 _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL,
a27e685f
AM		 12888 s, TOC_BASE_OFF - adjust,
12889 NULL, FALSE, FALSE, &bh);
1c865ab2
AM		 12890 }
12891 }
805fc799 12892 return TOCstart;
721956f4
AM		 12893}
12894
a345bc8d
AM		 12895/* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to
12896 write out any global entry stubs. */
12897
12898static bfd_boolean
12899build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
12900{
12901 struct bfd_link_info *info;
12902 struct ppc_link_hash_table *htab;
12903 struct plt_entry *pent;
12904 asection *s;
12905
12906 if (h->root.type == bfd_link_hash_indirect)
12907 return TRUE;
12908
12909 if (!h->pointer_equality_needed)
12910 return TRUE;
12911
12912 if (h->def_regular)
12913 return TRUE;
12914
12915 info = inf;
12916 htab = ppc_hash_table (info);
12917 if (htab == NULL)
12918 return FALSE;
12919
12920 s = htab->glink;
12921 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
12922 if (pent->plt.offset != (bfd_vma) -1
12923 && pent->addend == 0)
12924 {
12925 bfd_byte *p;
12926 asection *plt;
12927 bfd_vma off;
12928
a345bc8d 12929 p = s->contents + h->root.u.def.value;
33e44f2e 12930 plt = htab->elf.splt;
a345bc8d
AM		 12931 if (!htab->elf.dynamic_sections_created
12932 || h->dynindx == -1)
33e44f2e 12933 plt = htab->elf.iplt;
a345bc8d
AM		 12934 off = pent->plt.offset + plt->output_offset + plt->output_section->vma;
12935 off -= h->root.u.def.value + s->output_offset + s->output_section->vma;
12936
12937 if (off + 0x80008000 > 0xffffffff || (off & 3) != 0)
12938 {
12939 info->callbacks->einfo
12940 (_("%P: linkage table error against `%T'\n"),
12941 h->root.root.string);
12942 bfd_set_error (bfd_error_bad_value);
12943 htab->stub_error = TRUE;
12944 }
12945
7341d5e2
AM		 12946 htab->stub_count[ppc_stub_global_entry - 1] += 1;
12947 if (htab->params->emit_stub_syms)
12948 {
12949 size_t len = strlen (h->root.root.string);
12950 char *name = bfd_malloc (sizeof "12345678.global_entry." + len);
12951
12952 if (name == NULL)
12953 return FALSE;
12954
12955 sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string);
12956 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
12957 if (h == NULL)
12958 return FALSE;
12959 if (h->root.type == bfd_link_hash_new)
12960 {
12961 h->root.type = bfd_link_hash_defined;
12962 h->root.u.def.section = s;
12963 h->root.u.def.value = p - s->contents;
12964 h->ref_regular = 1;
12965 h->def_regular = 1;
12966 h->ref_regular_nonweak = 1;
12967 h->forced_local = 1;
12968 h->non_elf = 0;
2ec55de3 12969 h->root.linker_def = 1;
7341d5e2
AM		 12970 }
12971 }
12972
a345bc8d
AM		 12973 if (PPC_HA (off) != 0)
12974 {
12975 bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p);
12976 p += 4;
12977 }
12978 bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p);
12979 p += 4;
12980 bfd_put_32 (s->owner, MTCTR_R12, p);
12981 p += 4;
12982 bfd_put_32 (s->owner, BCTR, p);
12983 break;
12984 }
12985 return TRUE;
12986}
12987
721956f4
AM		 12988/* Build all the stubs associated with the current output file.
12989 The stubs are kept in a hash table attached to the main linker
12990 hash table. This function is called via gldelf64ppc_finish. */
12991
b34976b6 12992bfd_boolean
e7d1c40c 12993ppc64_elf_build_stubs (struct bfd_link_info *info,
4ce794b7 12994 char **stats)
5d1634d7
AM		 12995{
12996 struct ppc_link_hash_table *htab = ppc_hash_table (info);
a4b6fadd 12997 struct map_stub *group;
721956f4 12998 asection *stub_sec;
5d1634d7 12999 bfd_byte *p;
e717da7e 13000 int stub_sec_count = 0;
5d1634d7 13001
4dfe6ac6
NC		 13002 if (htab == NULL)
13003 return FALSE;
13004
eea6121a 13005 /* Allocate memory to hold the linker stubs. */
e7d1c40c 13006 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 13007 stub_sec != NULL;
13008 stub_sec = stub_sec->next)
eea6121a
AM		 13009 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
13010 && stub_sec->size != 0)
e717da7e 13011 {
e7d1c40c 13012 stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size);
eea6121a
AM		 13013 if (stub_sec->contents == NULL)
13014 return FALSE;
eea6121a 13015 stub_sec->size = 0;
e717da7e 13016 }
5d1634d7 13017
23eb7e01 13018 if (htab->glink != NULL && htab->glink->size != 0)
5d1634d7 13019 {
9f951329 13020 unsigned int indx;
ad8e1ba5 13021 bfd_vma plt0;
9f951329 13022
721956f4 13023 /* Build the .glink plt call stub. */
e7d1c40c 13024 if (htab->params->emit_stub_syms)
97b639ba
AM		 13025 {
13026 struct elf_link_hash_entry *h;
468392fb
AM		 13027 h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
13028 TRUE, FALSE, FALSE);
97b639ba
AM		 13029 if (h == NULL)
13030 return FALSE;
13031 if (h->root.type == bfd_link_hash_new)
13032 {
13033 h->root.type = bfd_link_hash_defined;
13034 h->root.u.def.section = htab->glink;
ee4bf8d2 13035 h->root.u.def.value = 8;
f5385ebf
AM		 13036 h->ref_regular = 1;
13037 h->def_regular = 1;
13038 h->ref_regular_nonweak = 1;
13039 h->forced_local = 1;
13040 h->non_elf = 0;
2ec55de3 13041 h->root.linker_def = 1;
97b639ba
AM		 13042 }
13043 }
33e44f2e
AM		 13044 plt0 = (htab->elf.splt->output_section->vma
13045 + htab->elf.splt->output_offset
13046 - 16);
176a0d42
AM		 13047 if (info->emitrelocations)
13048 {
13049 Elf_Internal_Rela *r = get_relocs (htab->glink, 1);
13050 if (r == NULL)
13051 return FALSE;
13052 r->r_offset = (htab->glink->output_offset
13053 + htab->glink->output_section->vma);
13054 r->r_info = ELF64_R_INFO (0, R_PPC64_REL64);
13055 r->r_addend = plt0;
13056 }
4ce794b7 13057 p = htab->glink->contents;
176a0d42 13058 plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
ee4bf8d2
AM		 13059 bfd_put_64 (htab->glink->owner, plt0, p);
13060 p += 8;
b9e5796b
AM		 13061 if (htab->opd_abi)
13062 {
13063 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
13064 p += 4;
13065 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
13066 p += 4;
13067 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
13068 p += 4;
13069 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
13070 p += 4;
13071 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
13072 p += 4;
13073 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
13074 p += 4;
13075 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
13076 p += 4;
13077 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p);
13078 p += 4;
13079 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
13080 p += 4;
13081 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p);
13082 p += 4;
13083 }
13084 else
13085 {
13086 bfd_put_32 (htab->glink->owner, MFLR_R0, p);
13087 p += 4;
13088 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
13089 p += 4;
13090 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
13091 p += 4;
13092 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
13093 p += 4;
13094 bfd_put_32 (htab->glink->owner, MTLR_R0, p);
13095 p += 4;
13096 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
13097 p += 4;
13098 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
13099 p += 4;
13100 bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p);
13101 p += 4;
13102 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
13103 p += 4;
13104 bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p);
13105 p += 4;
13106 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
13107 p += 4;
13108 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p);
13109 p += 4;
13110 }
4ce794b7 13111 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5 13112 p += 4;
ee4bf8d2
AM		 13113 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
13114 {
13115 bfd_put_32 (htab->glink->owner, NOP, p);
13116 p += 4;
13117 }
ad8e1ba5 13118
9f951329
AM		 13119 /* Build the .glink lazy link call stubs. */
13120 indx = 0;
a345bc8d 13121 while (p < htab->glink->contents + htab->glink->rawsize)
9f951329 13122 {
b9e5796b 13123 if (htab->opd_abi)
9f951329 13124 {
b9e5796b
AM		 13125 if (indx < 0x8000)
13126 {
13127 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
13128 p += 4;
13129 }
13130 else
13131 {
13132 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
13133 p += 4;
13134 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx),
13135 p);
13136 p += 4;
13137 }
9f951329 13138 }
4ce794b7 13139 bfd_put_32 (htab->glink->owner,
ee4bf8d2 13140 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
a16d5acb 13141 indx++;
9f951329
AM		 13142 p += 4;
13143 }
a345bc8d
AM		 13144
13145 /* Build .glink global entry stubs. */
13146 if (htab->glink->size > htab->glink->rawsize)
afe397ea 13147 elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info);
5d1634d7 13148 }
5d1634d7 13149
7341d5e2 13150 if (htab->brlt != NULL && htab->brlt->size != 0)
721956f4 13151 {
4ce794b7 13152 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 13153 htab->brlt->size);
4ce794b7 13154 if (htab->brlt->contents == NULL)
b34976b6 13155 return FALSE;
721956f4 13156 }
ee75fd95 13157 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM		 13158 {
13159 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 13160 htab->relbrlt->size);
63bc6f6c
AM		 13161 if (htab->relbrlt->contents == NULL)
13162 return FALSE;
13163 }
5d1634d7 13164
721956f4
AM		 13165 /* Build the stubs as directed by the stub hash table. */
13166 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 13167
a4b6fadd
AM		 13168 for (group = htab->group; group != NULL; group = group->next)
13169 if (group->needs_save_res)
13170 {
13171 stub_sec = group->stub_sec;
13172 memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents,
13173 htab->sfpr->size);
13174 if (htab->params->emit_stub_syms)
13175 {
13176 unsigned int i;
13177
13178 for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++)
13179 if (!sfpr_define (info, &save_res_funcs[i], stub_sec))
13180 return FALSE;
13181 }
13182 stub_sec->size += htab->sfpr->size;
13183 }
13184
aa8a7074
AM		 13185 if (htab->relbrlt != NULL)
13186 htab->relbrlt->reloc_count = 0;
13187
e7d1c40c
AM		 13188 if (htab->params->plt_stub_align != 0)
13189 for (stub_sec = htab->params->stub_bfd->sections;
794e51c0
AM		 13190 stub_sec != NULL;
13191 stub_sec = stub_sec->next)
13192 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
e7d1c40c
AM		 13193 stub_sec->size = ((stub_sec->size
13194 + (1 << htab->params->plt_stub_align) - 1)
29f628db 13195 & -(1 << htab->params->plt_stub_align));
794e51c0 13196
e7d1c40c 13197 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 13198 stub_sec != NULL;
13199 stub_sec = stub_sec->next)
e717da7e
AM		 13200 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
13201 {
13202 stub_sec_count += 1;
c9301e31
AM		 13203 if (stub_sec->rawsize != stub_sec->size
13204 && (htab->stub_iteration <= STUB_SHRINK_ITER
13205 || stub_sec->rawsize < stub_sec->size))
e717da7e
AM		 13206 break;
13207 }
5d1634d7 13208
da44f4e5
AM		 13209 /* Note that the glink_eh_frame check here is not only testing that
13210 the generated size matched the calculated size but also that
13211 bfd_elf_discard_info didn't make any changes to the section. */
721956f4 13212 if (stub_sec != NULL
58d180e8
AM		 13213 || (htab->glink_eh_frame != NULL
13214 && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size))
5d1634d7 13215 {
b34976b6 13216 htab->stub_error = TRUE;
8de848d8 13217 info->callbacks->einfo (_("%P: stubs don't match calculated size\n"));
5d1634d7 13218 }
721956f4 13219
d2a300cf
AM		 13220 if (htab->stub_error)
13221 return FALSE;
13222
13223 if (stats != NULL)
13224 {
13225 *stats = bfd_malloc (500);
13226 if (*stats == NULL)
13227 return FALSE;
13228
ee75fd95 13229 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM		 13230 " branch %lu\n"
13231 " toc adjust %lu\n"
13232 " long branch %lu\n"
13233 " long toc adj %lu\n"
794e51c0 13234 " plt call %lu\n"
7341d5e2
AM		 13235 " plt call toc %lu\n"
13236 " global entry %lu"),
e717da7e 13237 stub_sec_count,
ee75fd95 13238 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM		 13239 htab->stub_count[ppc_stub_long_branch - 1],
13240 htab->stub_count[ppc_stub_long_branch_r2off - 1],
13241 htab->stub_count[ppc_stub_plt_branch - 1],
13242 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
794e51c0 13243 htab->stub_count[ppc_stub_plt_call - 1],
7341d5e2
AM		 13244 htab->stub_count[ppc_stub_plt_call_r2save - 1],
13245 htab->stub_count[ppc_stub_global_entry - 1]);
d2a300cf
AM		 13246 }
13247 return TRUE;
5bd4f169
AM		 13248}
13249
99877b66
AM		 13250/* This function undoes the changes made by add_symbol_adjust. */
13251
13252static bfd_boolean
13253undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
13254{
13255 struct ppc_link_hash_entry *eh;
13256
13257 if (h->root.type == bfd_link_hash_indirect)
13258 return TRUE;
13259
99877b66
AM		 13260 eh = (struct ppc_link_hash_entry *) h;
13261 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
13262 return TRUE;
13263
13264 eh->elf.root.type = bfd_link_hash_undefined;
13265 return TRUE;
13266}
13267
13268void
13269ppc64_elf_restore_symbols (struct bfd_link_info *info)
13270{
13271 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4dfe6ac6
NC		 13272
13273 if (htab != NULL)
13274 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
99877b66
AM		 13275}
13276
60124e18
AM		 13277/* What to do when ld finds relocations against symbols defined in
13278 discarded sections. */
13279
13280static unsigned int
13281ppc64_elf_action_discarded (asection *sec)
13282{
13283 if (strcmp (".opd", sec->name) == 0)
13284 return 0;
13285
13286 if (strcmp (".toc", sec->name) == 0)
13287 return 0;
13288
bce50a28
JJ		 13289 if (strcmp (".toc1", sec->name) == 0)
13290 return 0;
13291
60124e18
AM		 13292 return _bfd_elf_default_action_discarded (sec);
13293}
13294
5bd4f169
AM		 13295/* The RELOCATE_SECTION function is called by the ELF backend linker
13296 to handle the relocations for a section.
13297
13298 The relocs are always passed as Rela structures; if the section
13299 actually uses Rel structures, the r_addend field will always be
13300 zero.
13301
13302 This function is responsible for adjust the section contents as
13303 necessary, and (if using Rela relocs and generating a
1049f94e 13304 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 13305 necessary.
13306
13307 This function does not have to worry about setting the reloc
13308 address or the reloc symbol index.
13309
13310 LOCAL_SYMS is a pointer to the swapped in local symbols.
13311
13312 LOCAL_SECTIONS is an array giving the section in the input file
13313 corresponding to the st_shndx field of each local symbol.
13314
13315 The global hash table entry for the global symbols can be found
13316 via elf_sym_hashes (input_bfd).
13317
1049f94e 13318 When generating relocatable output, this function must handle
5bd4f169
AM		 13319 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
13320 going to be the section symbol corresponding to the output
13321 section, which means that the addend must be adjusted
13322 accordingly. */
13323
b34976b6 13324static bfd_boolean
4ce794b7
AM		 13325ppc64_elf_relocate_section (bfd *output_bfd,
13326 struct bfd_link_info *info,
13327 bfd *input_bfd,
13328 asection *input_section,
13329 bfd_byte *contents,
13330 Elf_Internal_Rela *relocs,
13331 Elf_Internal_Sym *local_syms,
13332 asection **local_sections)
5bd4f169 13333{
65f38f15 13334 struct ppc_link_hash_table *htab;
5bd4f169
AM		 13335 Elf_Internal_Shdr *symtab_hdr;
13336 struct elf_link_hash_entry **sym_hashes;
5bd4f169 13337 Elf_Internal_Rela *rel;
c316a17c 13338 Elf_Internal_Rela *wrel;
5bd4f169 13339 Elf_Internal_Rela *relend;
411e1bfb
AM		 13340 Elf_Internal_Rela outrel;
13341 bfd_byte *loc;
411e1bfb 13342 struct got_entry **local_got_ents;
5bd4f169 13343 bfd_vma TOCstart;
b34976b6
AM		 13344 bfd_boolean ret = TRUE;
13345 bfd_boolean is_opd;
794e51c0
AM		 13346 /* Assume 'at' branch hints. */
13347 bfd_boolean is_isa_v2 = TRUE;
4fe5ca5b 13348 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
5bd4f169 13349
65f38f15 13350 /* Initialize howto table if needed. */
5bd4f169 13351 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 13352 ppc_howto_init ();
13353
65f38f15 13354 htab = ppc_hash_table (info);
4dfe6ac6
NC		 13355 if (htab == NULL)
13356 return FALSE;
ee75fd95
AM		 13357
13358 /* Don't relocate stub sections. */
e7d1c40c 13359 if (input_section->owner == htab->params->stub_bfd)
ee75fd95
AM		 13360 return TRUE;
13361
0c8d6e5c 13362 BFD_ASSERT (is_ppc64_elf (input_bfd));
0ffa91dd 13363
411e1bfb 13364 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 13365 TOCstart = elf_gp (output_bfd);
0ffa91dd 13366 symtab_hdr = &elf_symtab_hdr (input_bfd);
5bd4f169 13367 sym_hashes = elf_sym_hashes (input_bfd);
7c8fe5c4 13368 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
65f38f15 13369
c316a17c 13370 rel = wrel = relocs;
5bd4f169 13371 relend = relocs + input_section->reloc_count;
c316a17c 13372 for (; rel < relend; wrel++, rel++)
5bd4f169 13373 {
04c9666a 13374 enum elf_ppc64_reloc_type r_type;
31c76678 13375 bfd_vma addend;
5bd4f169
AM		 13376 bfd_reloc_status_type r;
13377 Elf_Internal_Sym *sym;
13378 asection *sec;
039b3fef
AM		 13379 struct elf_link_hash_entry *h_elf;
13380 struct ppc_link_hash_entry *h;
13381 struct ppc_link_hash_entry *fdh;
5bd4f169 13382 const char *sym_name;
0d4792f7 13383 unsigned long r_symndx, toc_symndx;
3a71aa26 13384 bfd_vma toc_addend;
f961d9dd
AM		 13385 unsigned char tls_mask, tls_gd, tls_type;
13386 unsigned char sym_type;
5bd4f169 13387 bfd_vma relocation;
b34976b6
AM		 13388 bfd_boolean unresolved_reloc;
13389 bfd_boolean warned;
bc30df16 13390 enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest;
67f0cbdb 13391 unsigned int insn;
e11840f9 13392 unsigned int mask;
721956f4
AM		 13393 struct ppc_stub_hash_entry *stub_entry;
13394 bfd_vma max_br_offset;
13395 bfd_vma from;
c316a17c 13396 Elf_Internal_Rela orig_rel;
b80eed39
AM		 13397 reloc_howto_type *howto;
13398 struct reloc_howto_struct alt_howto;
5bd4f169 13399
c316a17c
AM		 13400 again:
13401 orig_rel = *rel;
13402
4ce794b7 13403 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 13404 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 13405
13406 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
13407 symbol of the previous ADDR64 reloc. The symbol gives us the
13408 proper TOC base to use. */
13409 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
c316a17c
AM		 13410 && wrel != relocs
13411 && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64
ee87f2da 13412 && is_opd)
c316a17c 13413 r_symndx = ELF64_R_SYM (wrel[-1].r_info);
ee87f2da 13414
4ce794b7
AM		 13415 sym = NULL;
13416 sec = NULL;
039b3fef 13417 h_elf = NULL;
4ce794b7 13418 sym_name = NULL;
b34976b6
AM		 13419 unresolved_reloc = FALSE;
13420 warned = FALSE;
65f38f15 13421
0b13192e 13422 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 13423 {
13424 /* It's a local symbol. */
74f0fb50 13425 struct _opd_sec_data *opd;
4025353c 13426
5bd4f169
AM		 13427 sym = local_syms + r_symndx;
13428 sec = local_sections[r_symndx];
26c61ae5 13429 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 13430 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 13431 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
74f0fb50
AM		 13432 opd = get_opd_info (sec);
13433 if (opd != NULL && opd->adjust != NULL)
1e2f5b6e 13434 {
51aecdc5
AM		 13435 long adjust = opd->adjust[OPD_NDX (sym->st_value
13436 + rel->r_addend)];
4025353c
AM		 13437 if (adjust == -1)
13438 relocation = 0;
13439 else
4cc603a5
AM		 13440 {
13441 /* If this is a relocation against the opd section sym
13442 and we have edited .opd, adjust the reloc addend so
13443 that ld -r and ld --emit-relocs output is correct.
13444 If it is a reloc against some other .opd symbol,
13445 then the symbol value will be adjusted later. */
13446 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
13447 rel->r_addend += adjust;
13448 else
13449 relocation += adjust;
13450 }
1e2f5b6e 13451 }
5bd4f169
AM		 13452 }
13453 else
13454 {
62d887d4
L		 13455 bfd_boolean ignored;
13456
b2a8e766
AM		 13457 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
13458 r_symndx, symtab_hdr, sym_hashes,
039b3fef 13459 h_elf, sec, relocation,
62d887d4 13460 unresolved_reloc, warned, ignored);
039b3fef
AM		 13461 sym_name = h_elf->root.root.string;
13462 sym_type = h_elf->type;
b69fdb4e
AM		 13463 if (sec != NULL
13464 && sec->owner == output_bfd
13465 && strcmp (sec->name, ".opd") == 0)
13466 {
13467 /* This is a symbol defined in a linker script. All
13468 such are defined in output sections, even those
13469 defined by simple assignment from a symbol defined in
13470 an input section. Transfer the symbol to an
13471 appropriate input .opd section, so that a branch to
13472 this symbol will be mapped to the location specified
13473 by the opd entry. */
13474 struct bfd_link_order *lo;
13475 for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next)
13476 if (lo->type == bfd_indirect_link_order)
13477 {
13478 asection *isec = lo->u.indirect.section;
13479 if (h_elf->root.u.def.value >= isec->output_offset
13480 && h_elf->root.u.def.value < (isec->output_offset
13481 + isec->size))
13482 {
13483 h_elf->root.u.def.value -= isec->output_offset;
13484 h_elf->root.u.def.section = isec;
13485 sec = isec;
13486 break;
13487 }
13488 }
13489 }
5bd4f169 13490 }
039b3fef 13491 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 13492
dbaa2011 13493 if (sec != NULL && discarded_section (sec))
c316a17c
AM		 13494 {
13495 _bfd_clear_contents (ppc64_elf_howto_table[r_type],
13496 input_bfd, input_section,
13497 contents + rel->r_offset);
13498 wrel->r_offset = rel->r_offset;
13499 wrel->r_info = 0;
13500 wrel->r_addend = 0;
13501
13502 /* For ld -r, remove relocations in debug sections against
13503 sections defined in discarded sections. Not done for
13504 non-debug to preserve relocs in .eh_frame which the
13505 eh_frame editing code expects to be present. */
13506 if (bfd_link_relocatable (info)
13507 && (input_section->flags & SEC_DEBUGGING))
13508 wrel--;
13509
13510 continue;
13511 }
ab96bf03 13512
0e1862bb 13513 if (bfd_link_relocatable (info))
c316a17c 13514 goto copy_reloc;
ab96bf03 13515
f40da81b
AM		 13516 if (h != NULL && &h->elf == htab->elf.hgot)
13517 {
6f20ed8a 13518 relocation = TOCstart + htab->sec_info[input_section->id].toc_off;
f40da81b
AM		 13519 sec = bfd_abs_section_ptr;
13520 unresolved_reloc = FALSE;
13521 }
13522
951fd09b
AM		 13523 /* TLS optimizations. Replace instruction sequences and relocs
13524 based on information we collected in tls_optimize. We edit
13525 RELOCS so that --emit-relocs will output something sensible
13526 for the final instruction stream. */
13527 tls_mask = 0;
13528 tls_gd = 0;
0d4792f7 13529 toc_symndx = 0;
727fc41e
AM		 13530 if (h != NULL)
13531 tls_mask = h->tls_mask;
13532 else if (local_got_ents != NULL)
411e1bfb 13533 {
e054468f
AM		 13534 struct plt_entry **local_plt = (struct plt_entry **)
13535 (local_got_ents + symtab_hdr->sh_info);
f961d9dd 13536 unsigned char *lgot_masks = (unsigned char *)
e054468f 13537 (local_plt + symtab_hdr->sh_info);
727fc41e
AM		 13538 tls_mask = lgot_masks[r_symndx];
13539 }
13540 if (tls_mask == 0
13541 && (r_type == R_PPC64_TLS
13542 || r_type == R_PPC64_TLSGD
13543 || r_type == R_PPC64_TLSLD))
13544 {
13545 /* Check for toc tls entries. */
f961d9dd 13546 unsigned char *toc_tls;
0d4792f7 13547
727fc41e
AM		 13548 if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13549 &local_syms, rel, input_bfd))
13550 return FALSE;
0d4792f7 13551
727fc41e
AM		 13552 if (toc_tls)
13553 tls_mask = *toc_tls;
0d4792f7
AM		 13554 }
13555
13556 /* Check that tls relocs are used with tls syms, and non-tls
13557 relocs are used with non-tls syms. */
cf35638d 13558 if (r_symndx != STN_UNDEF
0d4792f7
AM		 13559 && r_type != R_PPC64_NONE
13560 && (h == NULL
039b3fef
AM		 13561 || h->elf.root.type == bfd_link_hash_defined
13562 || h->elf.root.type == bfd_link_hash_defweak)
1d483afe
AM		 13563 && (IS_PPC64_TLS_RELOC (r_type)
13564 != (sym_type == STT_TLS
13565 || (sym_type == STT_SECTION
13566 && (sec->flags & SEC_THREAD_LOCAL) != 0))))
0d4792f7 13567 {
727fc41e
AM		 13568 if (tls_mask != 0
13569 && (r_type == R_PPC64_TLS
13570 || r_type == R_PPC64_TLSGD
13571 || r_type == R_PPC64_TLSLD))
0d4792f7
AM		 13572 /* R_PPC64_TLS is OK against a symbol in the TOC. */
13573 ;
13574 else
25f53a85 13575 info->callbacks->einfo
1d483afe 13576 (!IS_PPC64_TLS_RELOC (r_type)
695344c0 13577 /* xgettext:c-format */
bc30df16 13578 ? _("%P: %H: %s used with TLS symbol `%T'\n")
695344c0 13579 /* xgettext:c-format */
bc30df16 13580 : _("%P: %H: %s used with non-TLS symbol `%T'\n"),
25f53a85 13581 input_bfd, input_section, rel->r_offset,
0d4792f7
AM		 13582 ppc64_elf_howto_table[r_type]->name,
13583 sym_name);
411e1bfb
AM		 13584 }
13585
13586 /* Ensure reloc mapping code below stays sane. */
13587 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
13588 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
13589 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
13590 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
13591 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
13592 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
13593 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
13594 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
13595 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
13596 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
13597 abort ();
0d4792f7 13598
411e1bfb
AM		 13599 switch (r_type)
13600 {
13601 default:
411e1bfb
AM		 13602 break;
13603
ba761f19
AM		 13604 case R_PPC64_LO_DS_OPT:
13605 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
13606 if ((insn & (0x3f << 26)) != 58u << 26)
13607 abort ();
13608 insn += (14u << 26) - (58u << 26);
13609 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
13610 r_type = R_PPC64_TOC16_LO;
13611 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13612 break;
13613
411e1bfb
AM		 13614 case R_PPC64_TOC16:
13615 case R_PPC64_TOC16_LO:
13616 case R_PPC64_TOC16_DS:
13617 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 13618 {
13619 /* Check for toc tls entries. */
f961d9dd 13620 unsigned char *toc_tls;
951fd09b 13621 int retval;
411e1bfb 13622
3a71aa26
AM		 13623 retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13624 &local_syms, rel, input_bfd);
951fd09b 13625 if (retval == 0)
411e1bfb
AM		 13626 return FALSE;
13627
13628 if (toc_tls)
13629 {
951fd09b 13630 tls_mask = *toc_tls;
411e1bfb
AM		 13631 if (r_type == R_PPC64_TOC16_DS
13632 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 13633 {
13634 if (tls_mask != 0
13635 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
13636 goto toctprel;
13637 }
411e1bfb 13638 else
951fd09b
AM		 13639 {
13640 /* If we found a GD reloc pair, then we might be
13641 doing a GD->IE transition. */
13642 if (retval == 2)
13643 {
13644 tls_gd = TLS_TPRELGD;
13645 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 13646 goto tls_ldgd_opt;
951fd09b
AM		 13647 }
13648 else if (retval == 3)
13649 {
13650 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
102890f0 13651 goto tls_ldgd_opt;
951fd09b
AM		 13652 }
13653 }
411e1bfb
AM		 13654 }
13655 }
13656 break;
13657
9d6ded02
AM		 13658 case R_PPC64_GOT_TPREL16_HI:
13659 case R_PPC64_GOT_TPREL16_HA:
13660 if (tls_mask != 0
13661 && (tls_mask & TLS_TPREL) == 0)
13662 {
13663 rel->r_offset -= d_offset;
13664 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
13665 r_type = R_PPC64_NONE;
13666 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13667 }
13668 break;
13669
411e1bfb
AM		 13670 case R_PPC64_GOT_TPREL16_DS:
13671 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 13672 if (tls_mask != 0
13673 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 13674 {
81407a69 13675 toctprel:
c316a17c
AM		 13676 insn = bfd_get_32 (output_bfd,
13677 contents + rel->r_offset - d_offset);
411e1bfb
AM		 13678 insn &= 31 << 21;
13679 insn |= 0x3c0d0000; /* addis 0,13,0 */
c316a17c
AM		 13680 bfd_put_32 (output_bfd, insn,
13681 contents + rel->r_offset - d_offset);
411e1bfb 13682 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 13683 if (toc_symndx != 0)
13684 {
13685 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 13686 rel->r_addend = toc_addend;
0d4792f7
AM		 13687 /* We changed the symbol. Start over in order to
13688 get h, sym, sec etc. right. */
c316a17c 13689 goto again;
0d4792f7
AM		 13690 }
13691 else
13692 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13693 }
13694 break;
13695
13696 case R_PPC64_TLS:
951fd09b
AM		 13697 if (tls_mask != 0
13698 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 13699 {
411e1bfb 13700 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
2d0f3896
AM		 13701 insn = _bfd_elf_ppc_at_tls_transform (insn, 13);
13702 if (insn == 0)
411e1bfb 13703 abort ();
411e1bfb 13704 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb 13705 /* Was PPC64_TLS which sits on insn boundary, now
4fe5ca5b
GM		 13706 PPC64_TPREL16_LO which is at low-order half-word. */
13707 rel->r_offset += d_offset;
0d4792f7
AM		 13708 r_type = R_PPC64_TPREL16_LO;
13709 if (toc_symndx != 0)
13710 {
13711 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 13712 rel->r_addend = toc_addend;
0d4792f7
AM		 13713 /* We changed the symbol. Start over in order to
13714 get h, sym, sec etc. right. */
c316a17c 13715 goto again;
0d4792f7
AM		 13716 }
13717 else
13718 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13719 }
13720 break;
13721
411e1bfb
AM		 13722 case R_PPC64_GOT_TLSGD16_HI:
13723 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 13724 tls_gd = TLS_TPRELGD;
13725 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13726 goto tls_gdld_hi;
13727 break;
13728
411e1bfb
AM		 13729 case R_PPC64_GOT_TLSLD16_HI:
13730 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 13731 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 13732 {
951fd09b
AM		 13733 tls_gdld_hi:
13734 if ((tls_mask & tls_gd) != 0)
13735 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13736 + R_PPC64_GOT_TPREL16_DS);
13737 else
411e1bfb 13738 {
4fe5ca5b 13739 rel->r_offset -= d_offset;
727ac201 13740 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
951fd09b 13741 r_type = R_PPC64_NONE;
411e1bfb 13742 }
951fd09b 13743 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13744 }
13745 break;
13746
951fd09b
AM		 13747 case R_PPC64_GOT_TLSGD16:
13748 case R_PPC64_GOT_TLSGD16_LO:
13749 tls_gd = TLS_TPRELGD;
13750 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 13751 goto tls_ldgd_opt;
951fd09b 13752 break;
411e1bfb 13753
951fd09b
AM		 13754 case R_PPC64_GOT_TLSLD16:
13755 case R_PPC64_GOT_TLSLD16_LO:
13756 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13757 {
3a71aa26 13758 unsigned int insn1, insn2, insn3;
102890f0
AM		 13759 bfd_vma offset;
13760
13761 tls_ldgd_opt:
727fc41e
AM		 13762 offset = (bfd_vma) -1;
13763 /* If not using the newer R_PPC64_TLSGD/LD to mark
13764 __tls_get_addr calls, we must trust that the call
13765 stays with its arg setup insns, ie. that the next
13766 reloc is the __tls_get_addr call associated with
13767 the current reloc. Edit both insns. */
13768 if (input_section->has_tls_get_addr_call
13769 && rel + 1 < relend
13770 && branch_reloc_hash_match (input_bfd, rel + 1,
13771 htab->tls_get_addr,
13772 htab->tls_get_addr_fd))
13773 offset = rel[1].r_offset;
b86ac8e3
AM		 13774 /* We read the low GOT_TLS (or TOC16) insn because we
13775 need to keep the destination reg. It may be
13776 something other than the usual r3, and moved to r3
13777 before the call by intervening code. */
13778 insn1 = bfd_get_32 (output_bfd,
13779 contents + rel->r_offset - d_offset);
102890f0 13780 if ((tls_mask & tls_gd) != 0)
411e1bfb 13781 {
102890f0 13782 /* IE */
b86ac8e3 13783 insn1 &= (0x1f << 21) | (0x1f << 16);
102890f0
AM		 13784 insn1 |= 58 << 26; /* ld */
13785 insn2 = 0x7c636a14; /* add 3,3,13 */
727fc41e 13786 if (offset != (bfd_vma) -1)
f58d5a2d 13787 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
102890f0
AM		 13788 if ((tls_mask & TLS_EXPLICIT) == 0)
13789 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13790 + R_PPC64_GOT_TPREL16_DS);
411e1bfb 13791 else
102890f0
AM		 13792 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
13793 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13794 }
13795 else
13796 {
13797 /* LE */
b86ac8e3
AM		 13798 insn1 &= 0x1f << 21;
13799 insn1 |= 0x3c0d0000; /* addis r,13,0 */
102890f0
AM		 13800 insn2 = 0x38630000; /* addi 3,3,0 */
13801 if (tls_gd == 0)
951fd09b 13802 {
102890f0 13803 /* Was an LD reloc. */
1d483afe
AM		 13804 if (toc_symndx)
13805 sec = local_sections[toc_symndx];
13806 for (r_symndx = 0;
13807 r_symndx < symtab_hdr->sh_info;
13808 r_symndx++)
13809 if (local_sections[r_symndx] == sec)
13810 break;
13811 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 13812 r_symndx = STN_UNDEF;
102890f0 13813 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 13814 if (r_symndx != STN_UNDEF)
1d483afe
AM		 13815 rel->r_addend -= (local_syms[r_symndx].st_value
13816 + sec->output_offset
13817 + sec->output_section->vma);
951fd09b 13818 }
102890f0 13819 else if (toc_symndx != 0)
3a71aa26
AM		 13820 {
13821 r_symndx = toc_symndx;
13822 rel->r_addend = toc_addend;
13823 }
102890f0
AM		 13824 r_type = R_PPC64_TPREL16_HA;
13825 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
727fc41e
AM		 13826 if (offset != (bfd_vma) -1)
13827 {
13828 rel[1].r_info = ELF64_R_INFO (r_symndx,
13829 R_PPC64_TPREL16_LO);
13830 rel[1].r_offset = offset + d_offset;
13831 rel[1].r_addend = rel->r_addend;
13832 }
102890f0 13833 }
3a71aa26
AM		 13834 bfd_put_32 (output_bfd, insn1,
13835 contents + rel->r_offset - d_offset);
727fc41e
AM		 13836 if (offset != (bfd_vma) -1)
13837 {
13838 insn3 = bfd_get_32 (output_bfd,
13839 contents + offset + 4);
13840 if (insn3 == NOP
13841 || insn3 == CROR_151515 || insn3 == CROR_313131)
13842 {
13843 rel[1].r_offset += 4;
13844 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13845 insn2 = NOP;
13846 }
13847 bfd_put_32 (output_bfd, insn2, contents + offset);
13848 }
13849 if ((tls_mask & tls_gd) == 0
13850 && (tls_gd == 0 || toc_symndx != 0))
13851 {
13852 /* We changed the symbol. Start over in order
13853 to get h, sym, sec etc. right. */
c316a17c 13854 goto again;
727fc41e
AM		 13855 }
13856 }
13857 break;
13858
13859 case R_PPC64_TLSGD:
13860 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13861 {
13862 unsigned int insn2, insn3;
13863 bfd_vma offset = rel->r_offset;
13864
13865 if ((tls_mask & TLS_TPRELGD) != 0)
13866 {
13867 /* IE */
13868 r_type = R_PPC64_NONE;
13869 insn2 = 0x7c636a14; /* add 3,3,13 */
13870 }
13871 else
13872 {
13873 /* LE */
13874 if (toc_symndx != 0)
13875 {
13876 r_symndx = toc_symndx;
13877 rel->r_addend = toc_addend;
13878 }
13879 r_type = R_PPC64_TPREL16_LO;
13880 rel->r_offset = offset + d_offset;
13881 insn2 = 0x38630000; /* addi 3,3,0 */
13882 }
13883 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13884 /* Zap the reloc on the _tls_get_addr call too. */
13885 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 13886 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
3a71aa26
AM		 13887 insn3 = bfd_get_32 (output_bfd,
13888 contents + offset + 4);
102890f0
AM		 13889 if (insn3 == NOP
13890 || insn3 == CROR_151515 || insn3 == CROR_313131)
13891 {
727fc41e 13892 rel->r_offset += 4;
3a71aa26
AM		 13893 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13894 insn2 = NOP;
102890f0 13895 }
102890f0 13896 bfd_put_32 (output_bfd, insn2, contents + offset);
727fc41e 13897 if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0)
c316a17c 13898 goto again;
411e1bfb 13899 }
411e1bfb
AM		 13900 break;
13901
727fc41e
AM		 13902 case R_PPC64_TLSLD:
13903 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13904 {
13905 unsigned int insn2, insn3;
13906 bfd_vma offset = rel->r_offset;
13907
13908 if (toc_symndx)
13909 sec = local_sections[toc_symndx];
13910 for (r_symndx = 0;
13911 r_symndx < symtab_hdr->sh_info;
13912 r_symndx++)
13913 if (local_sections[r_symndx] == sec)
13914 break;
13915 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 13916 r_symndx = STN_UNDEF;
727fc41e 13917 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 13918 if (r_symndx != STN_UNDEF)
727fc41e
AM		 13919 rel->r_addend -= (local_syms[r_symndx].st_value
13920 + sec->output_offset
13921 + sec->output_section->vma);
13922
13923 r_type = R_PPC64_TPREL16_LO;
13924 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13925 rel->r_offset = offset + d_offset;
13926 /* Zap the reloc on the _tls_get_addr call too. */
13927 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 13928 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
727fc41e
AM		 13929 insn2 = 0x38630000; /* addi 3,3,0 */
13930 insn3 = bfd_get_32 (output_bfd,
13931 contents + offset + 4);
13932 if (insn3 == NOP
13933 || insn3 == CROR_151515 || insn3 == CROR_313131)
13934 {
13935 rel->r_offset += 4;
13936 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13937 insn2 = NOP;
13938 }
13939 bfd_put_32 (output_bfd, insn2, contents + offset);
c316a17c 13940 goto again;
727fc41e
AM		 13941 }
13942 break;
13943
411e1bfb 13944 case R_PPC64_DTPMOD64:
951fd09b
AM		 13945 if (rel + 1 < relend
13946 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
13947 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 13948 {
951fd09b
AM		 13949 if ((tls_mask & TLS_GD) == 0)
13950 {
13951 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
13952 if ((tls_mask & TLS_TPRELGD) != 0)
13953 r_type = R_PPC64_TPREL64;
13954 else
13955 {
4ce794b7 13956 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 13957 r_type = R_PPC64_NONE;
13958 }
13959 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13960 }
13961 }
13962 else
13963 {
13964 if ((tls_mask & TLS_LD) == 0)
411e1bfb 13965 {
4ce794b7 13966 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 13967 r_type = R_PPC64_NONE;
951fd09b 13968 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 13969 }
411e1bfb
AM		 13970 }
13971 break;
13972
13973 case R_PPC64_TPREL64:
951fd09b 13974 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 13975 {
13976 r_type = R_PPC64_NONE;
13977 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13978 }
13979 break;
52a82034 13980
006589cf
AM		 13981 case R_PPC64_ENTRY:
13982 relocation = TOCstart + htab->sec_info[input_section->id].toc_off;
13983 if (!bfd_link_pic (info)
13984 && !info->traditional_format
13985 && relocation + 0x80008000 <= 0xffffffff)
13986 {
13987 unsigned int insn1, insn2;
13988
13989 insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset);
13990 insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
13991 if ((insn1 & ~0xfffc) == LD_R2_0R12
13992 && insn2 == ADD_R2_R2_R12)
13993 {
13994 bfd_put_32 (output_bfd,
13995 LIS_R2 + PPC_HA (relocation),
13996 contents + rel->r_offset);
13997 bfd_put_32 (output_bfd,
13998 ADDI_R2_R2 + PPC_LO (relocation),
13999 contents + rel->r_offset + 4);
14000 }
14001 }
14002 else
14003 {
14004 relocation -= (rel->r_offset
14005 + input_section->output_offset
14006 + input_section->output_section->vma);
14007 if (relocation + 0x80008000 <= 0xffffffff)
14008 {
14009 unsigned int insn1, insn2;
14010
14011 insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset);
14012 insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
14013 if ((insn1 & ~0xfffc) == LD_R2_0R12
14014 && insn2 == ADD_R2_R2_R12)
14015 {
14016 bfd_put_32 (output_bfd,
14017 ADDIS_R2_R12 + PPC_HA (relocation),
14018 contents + rel->r_offset);
14019 bfd_put_32 (output_bfd,
14020 ADDI_R2_R2 + PPC_LO (relocation),
14021 contents + rel->r_offset + 4);
14022 }
14023 }
14024 }
14025 break;
14026
52a82034
AM		 14027 case R_PPC64_REL16_HA:
14028 /* If we are generating a non-PIC executable, edit
14029 . 0: addis 2,12,.TOC.-0b@ha
14030 . addi 2,2,.TOC.-0b@l
14031 used by ELFv2 global entry points to set up r2, to
14032 . lis 2,.TOC.@ha
14033 . addi 2,2,.TOC.@l
14034 if .TOC. is in range. */
0e1862bb 14035 if (!bfd_link_pic (info)
810d4e75 14036 && !info->traditional_format
006589cf 14037 && !htab->opd_abi
4f038ee5 14038 && rel->r_addend == d_offset
52a82034
AM		 14039 && h != NULL && &h->elf == htab->elf.hgot
14040 && rel + 1 < relend
14041 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO)
14042 && rel[1].r_offset == rel->r_offset + 4
14043 && rel[1].r_addend == rel->r_addend + 4
14044 && relocation + 0x80008000 <= 0xffffffff)
14045 {
14046 unsigned int insn1, insn2;
14047 bfd_vma offset = rel->r_offset - d_offset;
14048 insn1 = bfd_get_32 (output_bfd, contents + offset);
14049 insn2 = bfd_get_32 (output_bfd, contents + offset + 4);
006589cf
AM		 14050 if ((insn1 & 0xffff0000) == ADDIS_R2_R12
14051 && (insn2 & 0xffff0000) == ADDI_R2_R2)
52a82034
AM		 14052 {
14053 r_type = R_PPC64_ADDR16_HA;
14054 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
14055 rel->r_addend -= d_offset;
14056 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO);
14057 rel[1].r_addend -= d_offset + 4;
006589cf 14058 bfd_put_32 (output_bfd, LIS_R2, contents + offset);
52a82034
AM		 14059 }
14060 }
14061 break;
411e1bfb
AM		 14062 }
14063
14064 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 14065 insn = 0;
b25116a9
AM		 14066 max_br_offset = 1 << 25;
14067 addend = rel->r_addend;
bc30df16 14068 reloc_dest = DEST_NORMAL;
65f38f15 14069 switch (r_type)
5bd4f169
AM		 14070 {
14071 default:
65f38f15 14072 break;
5bd4f169 14073
3b421ab3
AM		 14074 case R_PPC64_TOCSAVE:
14075 if (relocation + addend == (rel->r_offset
14076 + input_section->output_offset
14077 + input_section->output_section->vma)
14078 && tocsave_find (htab, NO_INSERT,
14079 &local_syms, rel, input_bfd))
14080 {
14081 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
14082 if (insn == NOP
14083 || insn == CROR_151515 || insn == CROR_313131)
a078d95a
AM		 14084 bfd_put_32 (input_bfd,
14085 STD_R2_0R1 + STK_TOC (htab),
3b421ab3
AM		 14086 contents + rel->r_offset);
14087 }
14088 break;
14089
65f38f15
AM		 14090 /* Branch taken prediction relocations. */
14091 case R_PPC64_ADDR14_BRTAKEN:
14092 case R_PPC64_REL14_BRTAKEN:
cedb70c5 14093 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
1a0670f3 14094 /* Fall through. */
65f38f15 14095
86c76c7b 14096 /* Branch not taken prediction relocations. */
65f38f15
AM		 14097 case R_PPC64_ADDR14_BRNTAKEN:
14098 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 14099 insn |= bfd_get_32 (output_bfd,
14100 contents + rel->r_offset) & ~(0x01 << 21);
1a0670f3 14101 /* Fall through. */
86c76c7b 14102
b25116a9
AM		 14103 case R_PPC64_REL14:
14104 max_br_offset = 1 << 15;
1a0670f3 14105 /* Fall through. */
5bd4f169 14106
65f38f15 14107 case R_PPC64_REL24:
ad8e1ba5
AM		 14108 /* Calls to functions with a different TOC, such as calls to
14109 shared objects, need to alter the TOC pointer. This is
14110 done using a linkage stub. A REL24 branching to these
14111 linkage stubs needs to be followed by a nop, as the nop
14112 will be replaced with an instruction to restore the TOC
14113 base pointer. */
8387904d 14114 fdh = h;
b31867b6
AM		 14115 if (h != NULL
14116 && h->oh != NULL
14117 && h->oh->is_func_descriptor)
14118 fdh = ppc_follow_link (h->oh);
31c76678
DK		 14119 stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel,
14120 htab);
6abec6bc 14121 if (stub_entry != NULL
ad8e1ba5 14122 && (stub_entry->stub_type == ppc_stub_plt_call
794e51c0 14123 || stub_entry->stub_type == ppc_stub_plt_call_r2save
ad8e1ba5
AM		 14124 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
14125 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 14126 {
b25116a9 14127 bfd_boolean can_plt_call = FALSE;
721956f4 14128
ba8ca3e7
AM		 14129 /* All of these stubs will modify r2, so there must be a
14130 branch and link followed by a nop. The nop is
14131 replaced by an insn to restore r2. */
eea6121a 14132 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 14133 {
ba8ca3e7
AM		 14134 unsigned long br;
14135
14136 br = bfd_get_32 (input_bfd,
14137 contents + rel->r_offset);
14138 if ((br & 1) != 0)
41bd81ab 14139 {
ba8ca3e7
AM		 14140 unsigned long nop;
14141
14142 nop = bfd_get_32 (input_bfd,
14143 contents + rel->r_offset + 4);
14144 if (nop == NOP
14145 || nop == CROR_151515 || nop == CROR_313131)
a7f2871e 14146 {
ba8ca3e7
AM		 14147 if (h != NULL
14148 && (h == htab->tls_get_addr_fd
14149 || h == htab->tls_get_addr)
7c9cf415 14150 && htab->params->tls_get_addr_opt)
ba8ca3e7
AM		 14151 {
14152 /* Special stub used, leave nop alone. */
14153 }
14154 else
a078d95a
AM		 14155 bfd_put_32 (input_bfd,
14156 LD_R2_0R1 + STK_TOC (htab),
ba8ca3e7
AM		 14157 contents + rel->r_offset + 4);
14158 can_plt_call = TRUE;
a7f2871e 14159 }
41bd81ab 14160 }
5bd4f169 14161 }
721956f4 14162
ba8ca3e7 14163 if (!can_plt_call && h != NULL)
721956f4 14164 {
ba8ca3e7
AM		 14165 const char *name = h->elf.root.root.string;
14166
14167 if (*name == '.')
14168 ++name;
14169
14170 if (strncmp (name, "__libc_start_main", 17) == 0
14171 && (name[17] == 0 || name[17] == '@'))
6ab189d5 14172 {
ba8ca3e7
AM		 14173 /* Allow crt1 branch to go via a toc adjusting
14174 stub. Other calls that never return could do
14175 the same, if we could detect such. */
b25116a9 14176 can_plt_call = TRUE;
6ab189d5 14177 }
ba8ca3e7
AM		 14178 }
14179
14180 if (!can_plt_call)
14181 {
14182 /* g++ as of 20130507 emits self-calls without a
14183 following nop. This is arguably wrong since we
14184 have conflicting information. On the one hand a
14185 global symbol and on the other a local call
14186 sequence, but don't error for this special case.
14187 It isn't possible to cheaply verify we have
14188 exactly such a call. Allow all calls to the same
14189 section. */
14190 asection *code_sec = sec;
14191
14192 if (get_opd_info (sec) != NULL)
ad8e1ba5 14193 {
ba8ca3e7
AM		 14194 bfd_vma off = (relocation + addend
14195 - sec->output_section->vma
14196 - sec->output_offset);
bc30df16 14197
ba8ca3e7 14198 opd_entry_value (sec, off, &code_sec, NULL, FALSE);
ad8e1ba5 14199 }
ba8ca3e7
AM		 14200 if (code_sec == input_section)
14201 can_plt_call = TRUE;
14202 }
14203
14204 if (!can_plt_call)
14205 {
4805fc55
AM		 14206 if (stub_entry->stub_type == ppc_stub_plt_call
14207 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
14208 info->callbacks->einfo
695344c0 14209 /* xgettext:c-format */
4805fc55
AM		 14210 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
14211 "recompile with -fPIC\n"),
14212 input_bfd, input_section, rel->r_offset, sym_name);
14213 else
14214 info->callbacks->einfo
695344c0 14215 /* xgettext:c-format */
4805fc55
AM		 14216 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
14217 "(-mcmodel=small toc adjust stub)\n"),
14218 input_bfd, input_section, rel->r_offset, sym_name);
ba8ca3e7
AM		 14219
14220 bfd_set_error (bfd_error_bad_value);
14221 ret = FALSE;
721956f4
AM		 14222 }
14223
b25116a9 14224 if (can_plt_call
794e51c0
AM		 14225 && (stub_entry->stub_type == ppc_stub_plt_call
14226 || stub_entry->stub_type == ppc_stub_plt_call_r2save))
b25116a9
AM		 14227 unresolved_reloc = FALSE;
14228 }
14229
6abec6bc
AM		 14230 if ((stub_entry == NULL
14231 || stub_entry->stub_type == ppc_stub_long_branch
14232 || stub_entry->stub_type == ppc_stub_plt_branch)
8387904d
AM		 14233 && get_opd_info (sec) != NULL)
14234 {
14235 /* The branch destination is the value of the opd entry. */
4cc603a5
AM		 14236 bfd_vma off = (relocation + addend
14237 - sec->output_section->vma
14238 - sec->output_offset);
aef36ac1 14239 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE);
8387904d
AM		 14240 if (dest != (bfd_vma) -1)
14241 {
14242 relocation = dest;
14243 addend = 0;
bc30df16 14244 reloc_dest = DEST_OPD;
8387904d
AM		 14245 }
14246 }
14247
b25116a9
AM		 14248 /* If the branch is out of reach we ought to have a long
14249 branch stub. */
14250 from = (rel->r_offset
14251 + input_section->output_offset
14252 + input_section->output_section->vma);
14253
6911b7dc
AM		 14254 relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh
14255 ? fdh->elf.other
14256 : sym->st_other);
14257
6abec6bc
AM		 14258 if (stub_entry != NULL
14259 && (stub_entry->stub_type == ppc_stub_long_branch
14260 || stub_entry->stub_type == ppc_stub_plt_branch)
14261 && (r_type == R_PPC64_ADDR14_BRTAKEN
14262 || r_type == R_PPC64_ADDR14_BRNTAKEN
14263 || (relocation + addend - from + max_br_offset
14264 < 2 * max_br_offset)))
14265 /* Don't use the stub if this branch is in range. */
14266 stub_entry = NULL;
b25116a9
AM		 14267
14268 if (stub_entry != NULL)
14269 {
14270 /* Munge up the value and addend so that we call the stub
14271 rather than the procedure directly. */
a4b6fadd
AM		 14272 asection *stub_sec = stub_entry->group->stub_sec;
14273
14274 if (stub_entry->stub_type == ppc_stub_save_res)
14275 relocation += (stub_sec->output_offset
14276 + stub_sec->output_section->vma
14277 + stub_sec->size - htab->sfpr->size
14278 - htab->sfpr->output_offset
14279 - htab->sfpr->output_section->vma);
14280 else
14281 relocation = (stub_entry->stub_offset
14282 + stub_sec->output_offset
14283 + stub_sec->output_section->vma);
b25116a9 14284 addend = 0;
bc30df16 14285 reloc_dest = DEST_STUB;
3b421ab3 14286
794e51c0
AM		 14287 if ((stub_entry->stub_type == ppc_stub_plt_call
14288 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
14289 && (ALWAYS_EMIT_R2SAVE
14290 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
3b421ab3
AM		 14291 && rel + 1 < relend
14292 && rel[1].r_offset == rel->r_offset + 4
14293 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE)
14294 relocation += 4;
b25116a9
AM		 14295 }
14296
14297 if (insn != 0)
14298 {
794e51c0 14299 if (is_isa_v2)
721956f4 14300 {
b25116a9
AM		 14301 /* Set 'a' bit. This is 0b00010 in BO field for branch
14302 on CR(BI) insns (BO == 001at or 011at), and 0b01000
14303 for branch on CTR insns (BO == 1a00t or 1a01t). */
14304 if ((insn & (0x14 << 21)) == (0x04 << 21))
14305 insn |= 0x02 << 21;
14306 else if ((insn & (0x14 << 21)) == (0x10 << 21))
14307 insn |= 0x08 << 21;
14308 else
14309 break;
14310 }
14311 else
14312 {
14313 /* Invert 'y' bit if not the default. */
4cc603a5 14314 if ((bfd_signed_vma) (relocation + addend - from) < 0)
b25116a9 14315 insn ^= 0x01 << 21;
721956f4 14316 }
b25116a9
AM		 14317
14318 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 14319 }
e86ce104 14320
06da1e8e
AM		 14321 /* NOP out calls to undefined weak functions.
14322 We can thus call a weak function without first
14323 checking whether the function is defined. */
b25116a9 14324 else if (h != NULL
039b3fef 14325 && h->elf.root.type == bfd_link_hash_undefweak
766bc656 14326 && h->elf.dynindx == -1
b25116a9
AM		 14327 && r_type == R_PPC64_REL24
14328 && relocation == 0
4cc603a5 14329 && addend == 0)
e86ce104 14330 {
06da1e8e 14331 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
c316a17c 14332 goto copy_reloc;
e86ce104 14333 }
65f38f15
AM		 14334 break;
14335 }
5bd4f169 14336
65f38f15 14337 /* Set `addend'. */
411e1bfb 14338 tls_type = 0;
65f38f15
AM		 14339 switch (r_type)
14340 {
14341 default:
25f53a85 14342 info->callbacks->einfo
695344c0 14343 /* xgettext:c-format */
bc30df16 14344 (_("%P: %B: unknown relocation type %d for `%T'\n"),
d003868e 14345 input_bfd, (int) r_type, sym_name);
5bd4f169 14346
65f38f15 14347 bfd_set_error (bfd_error_bad_value);
b34976b6 14348 ret = FALSE;
c316a17c 14349 goto copy_reloc;
5bd4f169 14350
65f38f15 14351 case R_PPC64_NONE:
411e1bfb 14352 case R_PPC64_TLS:
727fc41e
AM		 14353 case R_PPC64_TLSGD:
14354 case R_PPC64_TLSLD:
3b421ab3 14355 case R_PPC64_TOCSAVE:
04c9666a
AM		 14356 case R_PPC64_GNU_VTINHERIT:
14357 case R_PPC64_GNU_VTENTRY:
006589cf 14358 case R_PPC64_ENTRY:
c316a17c 14359 goto copy_reloc;
5bd4f169
AM		 14360
14361 /* GOT16 relocations. Like an ADDR16 using the symbol's
14362 address in the GOT as relocation value instead of the
411e1bfb 14363 symbol's value itself. Also, create a GOT entry for the
5bd4f169 14364 symbol and put the symbol value there. */
411e1bfb
AM		 14365 case R_PPC64_GOT_TLSGD16:
14366 case R_PPC64_GOT_TLSGD16_LO:
14367 case R_PPC64_GOT_TLSGD16_HI:
14368 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 14369 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 14370 goto dogot;
14371
14372 case R_PPC64_GOT_TLSLD16:
14373 case R_PPC64_GOT_TLSLD16_LO:
14374 case R_PPC64_GOT_TLSLD16_HI:
14375 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 14376 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 14377 goto dogot;
14378
14379 case R_PPC64_GOT_TPREL16_DS:
14380 case R_PPC64_GOT_TPREL16_LO_DS:
14381 case R_PPC64_GOT_TPREL16_HI:
14382 case R_PPC64_GOT_TPREL16_HA:
14383 tls_type = TLS_TLS | TLS_TPREL;
14384 goto dogot;
14385
14386 case R_PPC64_GOT_DTPREL16_DS:
14387 case R_PPC64_GOT_DTPREL16_LO_DS:
14388 case R_PPC64_GOT_DTPREL16_HI:
14389 case R_PPC64_GOT_DTPREL16_HA:
14390 tls_type = TLS_TLS | TLS_DTPREL;
14391 goto dogot;
14392
65f38f15
AM		 14393 case R_PPC64_GOT16:
14394 case R_PPC64_GOT16_LO:
14395 case R_PPC64_GOT16_HI:
14396 case R_PPC64_GOT16_HA:
14397 case R_PPC64_GOT16_DS:
14398 case R_PPC64_GOT16_LO_DS:
411e1bfb 14399 dogot:
5bd4f169
AM		 14400 {
14401 /* Relocation is to the entry for this symbol in the global
14402 offset table. */
e717da7e 14403 asection *got;
d881513a 14404 bfd_vma *offp;
5bd4f169 14405 bfd_vma off;
d881513a 14406 unsigned long indx = 0;
927be08e 14407 struct got_entry *ent;
65f38f15 14408
d881513a
AM		 14409 if (tls_type == (TLS_TLS | TLS_LD)
14410 && (h == NULL
f5385ebf 14411 || !h->elf.def_dynamic))
927be08e 14412 ent = ppc64_tlsld_got (input_bfd);
411e1bfb 14413 else
5bd4f169 14414 {
5bd4f169 14415
d881513a
AM		 14416 if (h != NULL)
14417 {
14418 bfd_boolean dyn = htab->elf.dynamic_sections_created;
0e1862bb 14419 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info),
039b3fef 14420 &h->elf)
0e1862bb 14421 || (bfd_link_pic (info)
afe397ea 14422 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM		 14423 /* This is actually a static link, or it is a
14424 -Bsymbolic link and the symbol is defined
14425 locally, or the symbol was forced to be local
14426 because of a version file. */
14427 ;
14428 else
14429 {
14acf4dc 14430 BFD_ASSERT (h->elf.dynindx != -1);
039b3fef 14431 indx = h->elf.dynindx;
d881513a
AM		 14432 unresolved_reloc = FALSE;
14433 }
039b3fef 14434 ent = h->elf.got.glist;
d881513a 14435 }
411e1bfb 14436 else
5bd4f169 14437 {
d881513a
AM		 14438 if (local_got_ents == NULL)
14439 abort ();
14440 ent = local_got_ents[r_symndx];
5bd4f169 14441 }
d881513a
AM		 14442
14443 for (; ent != NULL; ent = ent->next)
31c76678 14444 if (ent->addend == orig_rel.r_addend
e717da7e 14445 && ent->owner == input_bfd
d881513a
AM		 14446 && ent->tls_type == tls_type)
14447 break;
5bd4f169 14448 }
411e1bfb 14449
927be08e
AM		 14450 if (ent == NULL)
14451 abort ();
14452 if (ent->is_indirect)
14453 ent = ent->got.ent;
14454 offp = &ent->got.offset;
14455 got = ppc64_elf_tdata (ent->owner)->got;
e717da7e
AM		 14456 if (got == NULL)
14457 abort ();
14458
411e1bfb
AM		 14459 /* The offset must always be a multiple of 8. We use the
14460 least significant bit to record whether we have already
14461 processed this entry. */
d881513a 14462 off = *offp;
411e1bfb
AM		 14463 if ((off & 1) != 0)
14464 off &= ~1;
5bd4f169
AM		 14465 else
14466 {
411e1bfb
AM		 14467 /* Generate relocs for the dynamic linker, except in
14468 the case of TLSLD where we'll use one entry per
14469 module. */
25f23106
AM		 14470 asection *relgot;
14471 bfd_boolean ifunc;
e717da7e 14472
d881513a 14473 *offp = off | 1;
25f23106
AM		 14474 relgot = NULL;
14475 ifunc = (h != NULL
14476 ? h->elf.type == STT_GNU_IFUNC
14477 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
19e08130 14478 if (ifunc)
33e44f2e 14479 relgot = htab->elf.irelplt;
0e1862bb 14480 else if ((bfd_link_pic (info) || indx != 0)
19e08130
AM		 14481 && (h == NULL
14482 || (tls_type == (TLS_TLS | TLS_LD)
14483 && !h->elf.def_dynamic)
14484 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
14485 || h->elf.root.type != bfd_link_hash_undefweak))
14486 relgot = ppc64_elf_tdata (ent->owner)->relgot;
25f23106 14487 if (relgot != NULL)
5bd4f169 14488 {
e717da7e
AM		 14489 outrel.r_offset = (got->output_section->vma
14490 + got->output_offset
411e1bfb 14491 + off);
4cc603a5 14492 outrel.r_addend = addend;
d881513a 14493 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 14494 {
411e1bfb 14495 outrel.r_addend = 0;
e515b051 14496 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 14497 if (tls_type == (TLS_TLS | TLS_GD))
14498 {
e717da7e
AM		 14499 loc = relgot->contents;
14500 loc += (relgot->reloc_count++
d881513a
AM		 14501 * sizeof (Elf64_External_Rela));
14502 bfd_elf64_swap_reloca_out (output_bfd,
14503 &outrel, loc);
e515b051 14504 outrel.r_offset += 8;
4cc603a5 14505 outrel.r_addend = addend;
d881513a
AM		 14506 outrel.r_info
14507 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 14508 }
411e1bfb 14509 }
951fd09b 14510 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 14511 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 14512 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 14513 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
25f23106
AM		 14514 else if (indx != 0)
14515 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
14516 else
81407a69 14517 {
25f23106
AM		 14518 if (ifunc)
14519 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14520 else
14521 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 14522
14523 /* Write the .got section contents for the sake
14524 of prelink. */
e717da7e 14525 loc = got->contents + off;
23fbd6fa
JJ		 14526 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
14527 loc);
81407a69 14528 }
81407a69
AM		 14529
14530 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 14531 {
14532 outrel.r_addend += relocation;
14533 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM		 14534 {
14535 if (htab->elf.tls_sec == NULL)
14536 outrel.r_addend = 0;
14537 else
14538 outrel.r_addend -= htab->elf.tls_sec->vma;
14539 }
e515b051 14540 }
e717da7e
AM		 14541 loc = relgot->contents;
14542 loc += (relgot->reloc_count++
411e1bfb
AM		 14543 * sizeof (Elf64_External_Rela));
14544 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14545 }
14546
ad8e1ba5 14547 /* Init the .got section contents here if we're not
81407a69 14548 emitting a reloc. */
d881513a 14549 else
411e1bfb 14550 {
4cc603a5 14551 relocation += addend;
7b609f53
AM		 14552 if (tls_type == (TLS_TLS | TLS_LD))
14553 relocation = 1;
14554 else if (tls_type != 0)
411e1bfb 14555 {
989f9879
AM		 14556 if (htab->elf.tls_sec == NULL)
14557 relocation = 0;
14558 else
14559 {
14560 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
14561 if (tls_type == (TLS_TLS | TLS_TPREL))
14562 relocation += DTP_OFFSET - TP_OFFSET;
14563 }
5bd4f169 14564
7b609f53
AM		 14565 if (tls_type == (TLS_TLS | TLS_GD))
14566 {
14567 bfd_put_64 (output_bfd, relocation,
e717da7e 14568 got->contents + off + 8);
7b609f53
AM		 14569 relocation = 1;
14570 }
411e1bfb 14571 }
7b609f53 14572
411e1bfb 14573 bfd_put_64 (output_bfd, relocation,
e717da7e 14574 got->contents + off);
5bd4f169
AM		 14575 }
14576 }
14577
65f38f15
AM		 14578 if (off >= (bfd_vma) -2)
14579 abort ();
14580
bf102f86 14581 relocation = got->output_section->vma + got->output_offset + off;
6f20ed8a 14582 addend = -(TOCstart + htab->sec_info[input_section->id].toc_off);
5bd4f169 14583 }
65f38f15
AM		 14584 break;
14585
14586 case R_PPC64_PLT16_HA:
14587 case R_PPC64_PLT16_HI:
14588 case R_PPC64_PLT16_LO:
14589 case R_PPC64_PLT32:
14590 case R_PPC64_PLT64:
14591 /* Relocation is to the entry for this symbol in the
14592 procedure linkage table. */
cbf95972
AM		 14593 {
14594 struct plt_entry **plt_list = NULL;
14595 if (h != NULL)
14596 plt_list = &h->elf.plt.plist;
14597 else if (local_got_ents != NULL)
14598 {
14599 struct plt_entry **local_plt = (struct plt_entry **)
14600 (local_got_ents + symtab_hdr->sh_info);
14601 unsigned char *local_got_tls_masks = (unsigned char *)
14602 (local_plt + symtab_hdr->sh_info);
14603 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
14604 plt_list = local_plt + r_symndx;
14605 }
14606 if (plt_list)
14607 {
14608 struct plt_entry *ent;
65f38f15 14609
cbf95972
AM		 14610 for (ent = *plt_list; ent != NULL; ent = ent->next)
14611 if (ent->plt.offset != (bfd_vma) -1
14612 && ent->addend == orig_rel.r_addend)
14613 {
14614 asection *plt;
14615
14616 plt = htab->elf.splt;
14617 if (!htab->elf.dynamic_sections_created
14618 || h == NULL
14619 || h->elf.dynindx == -1)
14620 plt = htab->elf.iplt;
14621 relocation = (plt->output_section->vma
14622 + plt->output_offset
14623 + ent->plt.offset);
14624 addend = 0;
14625 unresolved_reloc = FALSE;
14626 break;
14627 }
14628 }
14629 }
65f38f15 14630 break;
5bd4f169 14631
0b13192e
AM		 14632 case R_PPC64_TOC:
14633 /* Relocation value is TOC base. */
14634 relocation = TOCstart;
cf35638d 14635 if (r_symndx == STN_UNDEF)
6f20ed8a 14636 relocation += htab->sec_info[input_section->id].toc_off;
8517fae7
AM		 14637 else if (unresolved_reloc)
14638 ;
6f20ed8a
AM		 14639 else if (sec != NULL && sec->id < htab->sec_info_arr_size)
14640 relocation += htab->sec_info[sec->id].toc_off;
0b13192e
AM		 14641 else
14642 unresolved_reloc = TRUE;
ab96bf03 14643 goto dodyn;
0b13192e 14644
5bd4f169
AM		 14645 /* TOC16 relocs. We want the offset relative to the TOC base,
14646 which is the address of the start of the TOC plus 0x8000.
14647 The TOC consists of sections .got, .toc, .tocbss, and .plt,
14648 in this order. */
65f38f15
AM		 14649 case R_PPC64_TOC16:
14650 case R_PPC64_TOC16_LO:
14651 case R_PPC64_TOC16_HI:
14652 case R_PPC64_TOC16_DS:
14653 case R_PPC64_TOC16_LO_DS:
14654 case R_PPC64_TOC16_HA:
6f20ed8a 14655 addend -= TOCstart + htab->sec_info[input_section->id].toc_off;
5bd4f169
AM		 14656 break;
14657
14658 /* Relocate against the beginning of the section. */
65f38f15
AM		 14659 case R_PPC64_SECTOFF:
14660 case R_PPC64_SECTOFF_LO:
14661 case R_PPC64_SECTOFF_HI:
14662 case R_PPC64_SECTOFF_DS:
14663 case R_PPC64_SECTOFF_LO_DS:
14664 case R_PPC64_SECTOFF_HA:
4ce794b7 14665 if (sec != NULL)
65f38f15 14666 addend -= sec->output_section->vma;
5bd4f169
AM		 14667 break;
14668
25f23106
AM		 14669 case R_PPC64_REL16:
14670 case R_PPC64_REL16_LO:
14671 case R_PPC64_REL16_HI:
14672 case R_PPC64_REL16_HA:
a680de9a 14673 case R_PPC64_REL16DX_HA:
25f23106
AM		 14674 break;
14675
721956f4
AM		 14676 case R_PPC64_REL14:
14677 case R_PPC64_REL14_BRNTAKEN:
14678 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 14679 case R_PPC64_REL24:
14680 break;
14681
411e1bfb
AM		 14682 case R_PPC64_TPREL16:
14683 case R_PPC64_TPREL16_LO:
14684 case R_PPC64_TPREL16_HI:
14685 case R_PPC64_TPREL16_HA:
14686 case R_PPC64_TPREL16_DS:
14687 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 14688 case R_PPC64_TPREL16_HIGH:
14689 case R_PPC64_TPREL16_HIGHA:
411e1bfb
AM		 14690 case R_PPC64_TPREL16_HIGHER:
14691 case R_PPC64_TPREL16_HIGHERA:
14692 case R_PPC64_TPREL16_HIGHEST:
14693 case R_PPC64_TPREL16_HIGHESTA:
766bc656
AM		 14694 if (h != NULL
14695 && h->elf.root.type == bfd_link_hash_undefweak
14696 && h->elf.dynindx == -1)
14697 {
14698 /* Make this relocation against an undefined weak symbol
14699 resolve to zero. This is really just a tweak, since
14700 code using weak externs ought to check that they are
14701 defined before using them. */
14702 bfd_byte *p = contents + rel->r_offset - d_offset;
14703
14704 insn = bfd_get_32 (output_bfd, p);
14705 insn = _bfd_elf_ppc_at_tprel_transform (insn, 13);
14706 if (insn != 0)
14707 bfd_put_32 (output_bfd, insn, p);
14708 break;
14709 }
989f9879
AM		 14710 if (htab->elf.tls_sec != NULL)
14711 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
0e1862bb 14712 if (bfd_link_pic (info))
411e1bfb
AM		 14713 /* The TPREL16 relocs shouldn't really be used in shared
14714 libs as they will result in DT_TEXTREL being set, but
14715 support them anyway. */
14716 goto dodyn;
14717 break;
14718
14719 case R_PPC64_DTPREL16:
14720 case R_PPC64_DTPREL16_LO:
14721 case R_PPC64_DTPREL16_HI:
14722 case R_PPC64_DTPREL16_HA:
14723 case R_PPC64_DTPREL16_DS:
14724 case R_PPC64_DTPREL16_LO_DS:
f9c6b907
AM		 14725 case R_PPC64_DTPREL16_HIGH:
14726 case R_PPC64_DTPREL16_HIGHA:
411e1bfb
AM		 14727 case R_PPC64_DTPREL16_HIGHER:
14728 case R_PPC64_DTPREL16_HIGHERA:
14729 case R_PPC64_DTPREL16_HIGHEST:
14730 case R_PPC64_DTPREL16_HIGHESTA:
989f9879
AM		 14731 if (htab->elf.tls_sec != NULL)
14732 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 14733 break;
14734
45965137
AM		 14735 case R_PPC64_ADDR64_LOCAL:
14736 addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL
14737 ? h->elf.other
14738 : sym->st_other);
14739 break;
14740
e515b051
AM		 14741 case R_PPC64_DTPMOD64:
14742 relocation = 1;
14743 addend = 0;
14744 goto dodyn;
14745
411e1bfb 14746 case R_PPC64_TPREL64:
989f9879
AM		 14747 if (htab->elf.tls_sec != NULL)
14748 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 14749 goto dodyn;
14750
14751 case R_PPC64_DTPREL64:
989f9879
AM		 14752 if (htab->elf.tls_sec != NULL)
14753 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
1a0670f3 14754 /* Fall through. */
411e1bfb 14755
65f38f15
AM		 14756 /* Relocations that may need to be propagated if this is a
14757 dynamic object. */
04c9666a 14758 case R_PPC64_REL30:
65f38f15
AM		 14759 case R_PPC64_REL32:
14760 case R_PPC64_REL64:
14761 case R_PPC64_ADDR14:
14762 case R_PPC64_ADDR14_BRNTAKEN:
14763 case R_PPC64_ADDR14_BRTAKEN:
14764 case R_PPC64_ADDR16:
14765 case R_PPC64_ADDR16_DS:
14766 case R_PPC64_ADDR16_HA:
14767 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 14768 case R_PPC64_ADDR16_HIGH:
14769 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 14770 case R_PPC64_ADDR16_HIGHER:
14771 case R_PPC64_ADDR16_HIGHERA:
14772 case R_PPC64_ADDR16_HIGHEST:
14773 case R_PPC64_ADDR16_HIGHESTA:
14774 case R_PPC64_ADDR16_LO:
14775 case R_PPC64_ADDR16_LO_DS:
14776 case R_PPC64_ADDR24:
65f38f15
AM		 14777 case R_PPC64_ADDR32:
14778 case R_PPC64_ADDR64:
14779 case R_PPC64_UADDR16:
14780 case R_PPC64_UADDR32:
14781 case R_PPC64_UADDR64:
411e1bfb 14782 dodyn:
5d1634d7 14783 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 14784 break;
14785
41bd81ab
AM		 14786 if (NO_OPD_RELOCS && is_opd)
14787 break;
14788
8a9e8e72
AM		 14789 if (bfd_link_pic (info)
14790 ? ((h != NULL && pc_dynrelocs (h))
14791 || must_be_dyn_reloc (info, r_type))
14792 : (h != NULL
14793 ? h->dyn_relocs != NULL
d311bc8b 14794 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
65f38f15 14795 {
b34976b6 14796 bfd_boolean skip, relocate;
65f38f15 14797 asection *sreloc;
1cf1f670 14798 bfd_vma out_off;
65f38f15
AM		 14799
14800 /* When generating a dynamic object, these relocations
14801 are copied into the output file to be resolved at run
14802 time. */
14803
b34976b6
AM		 14804 skip = FALSE;
14805 relocate = FALSE;
65f38f15 14806
1cf1f670
AM		 14807 out_off = _bfd_elf_section_offset (output_bfd, info,
14808 input_section, rel->r_offset);
14809 if (out_off == (bfd_vma) -1)
b34976b6 14810 skip = TRUE;
1cf1f670 14811 else if (out_off == (bfd_vma) -2)
b34976b6 14812 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 14813 out_off += (input_section->output_section->vma
14814 + input_section->output_offset);
14815 outrel.r_offset = out_off;
411e1bfb 14816 outrel.r_addend = rel->r_addend;
65f38f15 14817
1cf1f670
AM		 14818 /* Optimize unaligned reloc use. */
14819 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
14820 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
14821 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
14822 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
14823 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
14824 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
14825 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
14826 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
14827 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
14828
65f38f15 14829 if (skip)
0bb2d96a 14830 memset (&outrel, 0, sizeof outrel);
afe397ea 14831 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM		 14832 && !is_opd
14833 && r_type != R_PPC64_TOC)
14acf4dc
MR		 14834 {
14835 BFD_ASSERT (h->elf.dynindx != -1);
14836 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
14837 }
65f38f15
AM		 14838 else
14839 {
41bd81ab
AM		 14840 /* This symbol is local, or marked to become local,
14841 or this is an opd section reloc which must point
14842 at a local function. */
65f38f15 14843 outrel.r_addend += relocation;
e86ce104 14844 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 14845 {
3fad3c7c 14846 if (is_opd && h != NULL)
afbe61cf
AM		 14847 {
14848 /* Lie about opd entries. This case occurs
14849 when building shared libraries and we
14850 reference a function in another shared
3fad3c7c
AM		 14851 lib. The same thing happens for a weak
14852 definition in an application that's
14853 overridden by a strong definition in a
14854 shared lib. (I believe this is a generic
14855 bug in binutils handling of weak syms.)
14856 In these cases we won't use the opd
1e2f5b6e 14857 entry in this lib. */
b34976b6 14858 unresolved_reloc = FALSE;
afbe61cf 14859 }
25f23106
AM		 14860 if (!is_opd
14861 && r_type == R_PPC64_ADDR64
14862 && (h != NULL
14863 ? h->elf.type == STT_GNU_IFUNC
14864 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
14865 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14866 else
14867 {
14868 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69 14869
25f23106
AM		 14870 /* We need to relocate .opd contents for ld.so.
14871 Prelink also wants simple and consistent rules
14872 for relocs. This make all RELATIVE relocs have
14873 *r_offset equal to r_addend. */
14874 relocate = TRUE;
14875 }
65f38f15
AM		 14876 }
14877 else
14878 {
14879 long indx = 0;
14880
25f23106
AM		 14881 if (h != NULL
14882 ? h->elf.type == STT_GNU_IFUNC
14883 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
14884 {
25f53a85 14885 info->callbacks->einfo
695344c0 14886 /* xgettext:c-format */
bc30df16
AM		 14887 (_("%P: %H: %s for indirect "
14888 "function `%T' unsupported\n"),
25f53a85 14889 input_bfd, input_section, rel->r_offset,
25f23106
AM		 14890 ppc64_elf_howto_table[r_type]->name,
14891 sym_name);
14892 ret = FALSE;
14893 }
cf35638d 14894 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
65f38f15
AM		 14895 ;
14896 else if (sec == NULL || sec->owner == NULL)
14897 {
14898 bfd_set_error (bfd_error_bad_value);
b34976b6 14899 return FALSE;
65f38f15
AM		 14900 }
14901 else
14902 {
14903 asection *osec;
14904
14905 osec = sec->output_section;
14906 indx = elf_section_data (osec)->dynindx;
14907
74541ad4
AM		 14908 if (indx == 0)
14909 {
14910 if ((osec->flags & SEC_READONLY) == 0
14911 && htab->elf.data_index_section != NULL)
14912 osec = htab->elf.data_index_section;
14913 else
14914 osec = htab->elf.text_index_section;
14915 indx = elf_section_data (osec)->dynindx;
14916 }
14917 BFD_ASSERT (indx != 0);
14918
65f38f15
AM		 14919 /* We are turning this relocation into one
14920 against a section symbol, so subtract out
14921 the output section's address but not the
14922 offset of the input section in the output
14923 section. */
14924 outrel.r_addend -= osec->vma;
14925 }
14926
14927 outrel.r_info = ELF64_R_INFO (indx, r_type);
14928 }
14929 }
14930
14931 sreloc = elf_section_data (input_section)->sreloc;
19e08130
AM		 14932 if (h != NULL
14933 ? h->elf.type == STT_GNU_IFUNC
14934 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
33e44f2e 14935 sreloc = htab->elf.irelplt;
65f38f15
AM		 14936 if (sreloc == NULL)
14937 abort ();
14938
dfbb6ac9
AM		 14939 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
14940 >= sreloc->size)
14941 abort ();
947216bf
AM		 14942 loc = sreloc->contents;
14943 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 14944 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14945
14946 /* If this reloc is against an external symbol, it will
14947 be computed at runtime, so there's no need to do
81407a69
AM		 14948 anything now. However, for the sake of prelink ensure
14949 that the section contents are a known value. */
65f38f15 14950 if (! relocate)
81407a69
AM		 14951 {
14952 unresolved_reloc = FALSE;
14953 /* The value chosen here is quite arbitrary as ld.so
14954 ignores section contents except for the special
14955 case of .opd where the contents might be accessed
14956 before relocation. Choose zero, as that won't
14957 cause reloc overflow. */
14958 relocation = 0;
14959 addend = 0;
14960 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
14961 to improve backward compatibility with older
14962 versions of ld. */
14963 if (r_type == R_PPC64_ADDR64)
14964 addend = outrel.r_addend;
14965 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 14966 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 14967 addend = (input_section->output_section->vma
14968 + input_section->output_offset
14969 + rel->r_offset);
81407a69 14970 }
65f38f15 14971 }
5bd4f169
AM		 14972 break;
14973
65f38f15
AM		 14974 case R_PPC64_COPY:
14975 case R_PPC64_GLOB_DAT:
14976 case R_PPC64_JMP_SLOT:
25f23106 14977 case R_PPC64_JMP_IREL:
65f38f15
AM		 14978 case R_PPC64_RELATIVE:
14979 /* We shouldn't ever see these dynamic relocs in relocatable
14980 files. */
ae9a127f 14981 /* Fall through. */
65f38f15
AM		 14982
14983 case R_PPC64_PLTGOT16:
14984 case R_PPC64_PLTGOT16_DS:
14985 case R_PPC64_PLTGOT16_HA:
14986 case R_PPC64_PLTGOT16_HI:
14987 case R_PPC64_PLTGOT16_LO:
14988 case R_PPC64_PLTGOT16_LO_DS:
14989 case R_PPC64_PLTREL32:
14990 case R_PPC64_PLTREL64:
14991 /* These ones haven't been implemented yet. */
14992
25f53a85 14993 info->callbacks->einfo
695344c0 14994 /* xgettext:c-format */
bc30df16 14995 (_("%P: %B: %s is not supported for `%T'\n"),
d003868e 14996 input_bfd,
4ce794b7 14997 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 14998
14999 bfd_set_error (bfd_error_invalid_operation);
b34976b6 15000 ret = FALSE;
c316a17c 15001 goto copy_reloc;
65f38f15 15002 }
5bd4f169 15003
67f0cbdb
AM		 15004 /* Multi-instruction sequences that access the TOC can be
15005 optimized, eg. addis ra,r2,0; addi rb,ra,x;
15006 to nop; addi rb,r2,x; */
15007 switch (r_type)
15008 {
15009 default:
15010 break;
15011
15012 case R_PPC64_GOT_TLSLD16_HI:
15013 case R_PPC64_GOT_TLSGD16_HI:
15014 case R_PPC64_GOT_TPREL16_HI:
15015 case R_PPC64_GOT_DTPREL16_HI:
15016 case R_PPC64_GOT16_HI:
15017 case R_PPC64_TOC16_HI:
15018 /* These relocs would only be useful if building up an
15019 offset to later add to r2, perhaps in an indexed
15020 addressing mode instruction. Don't try to optimize.
15021 Unfortunately, the possibility of someone building up an
15022 offset like this or even with the HA relocs, means that
15023 we need to check the high insn when optimizing the low
15024 insn. */
15025 break;
15026
15027 case R_PPC64_GOT_TLSLD16_HA:
15028 case R_PPC64_GOT_TLSGD16_HA:
15029 case R_PPC64_GOT_TPREL16_HA:
15030 case R_PPC64_GOT_DTPREL16_HA:
15031 case R_PPC64_GOT16_HA:
15032 case R_PPC64_TOC16_HA:
98528052 15033 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
560c8763 15034 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
98528052
AM		 15035 {
15036 bfd_byte *p = contents + (rel->r_offset & ~3);
15037 bfd_put_32 (input_bfd, NOP, p);
15038 }
67f0cbdb
AM		 15039 break;
15040
15041 case R_PPC64_GOT_TLSLD16_LO:
15042 case R_PPC64_GOT_TLSGD16_LO:
15043 case R_PPC64_GOT_TPREL16_LO_DS:
15044 case R_PPC64_GOT_DTPREL16_LO_DS:
15045 case R_PPC64_GOT16_LO:
15046 case R_PPC64_GOT16_LO_DS:
15047 case R_PPC64_TOC16_LO:
15048 case R_PPC64_TOC16_LO_DS:
98528052 15049 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
560c8763 15050 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
67f0cbdb
AM		 15051 {
15052 bfd_byte *p = contents + (rel->r_offset & ~3);
15053 insn = bfd_get_32 (input_bfd, p);
560c8763
AM		 15054 if ((insn & (0x3f << 26)) == 12u << 26 /* addic */)
15055 {
15056 /* Transform addic to addi when we change reg. */
15057 insn &= ~((0x3f << 26) | (0x1f << 16));
15058 insn |= (14u << 26) | (2 << 16);
15059 }
15060 else
67f0cbdb 15061 {
98528052
AM		 15062 insn &= ~(0x1f << 16);
15063 insn |= 2 << 16;
67f0cbdb 15064 }
560c8763 15065 bfd_put_32 (input_bfd, insn, p);
67f0cbdb
AM		 15066 }
15067 break;
15068 }
15069
65f38f15 15070 /* Do any further special processing. */
b80eed39 15071 howto = ppc64_elf_howto_table[(int) r_type];
65f38f15
AM		 15072 switch (r_type)
15073 {
15074 default:
15075 break;
15076
25f23106 15077 case R_PPC64_REL16_HA:
a680de9a 15078 case R_PPC64_REL16DX_HA:
f9c6b907
AM		 15079 case R_PPC64_ADDR16_HA:
15080 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 15081 case R_PPC64_ADDR16_HIGHERA:
15082 case R_PPC64_ADDR16_HIGHESTA:
65f38f15
AM		 15083 case R_PPC64_TOC16_HA:
15084 case R_PPC64_SECTOFF_HA:
411e1bfb 15085 case R_PPC64_TPREL16_HA:
f9c6b907 15086 case R_PPC64_TPREL16_HIGHA:
411e1bfb 15087 case R_PPC64_TPREL16_HIGHERA:
411e1bfb 15088 case R_PPC64_TPREL16_HIGHESTA:
f9c6b907
AM		 15089 case R_PPC64_DTPREL16_HA:
15090 case R_PPC64_DTPREL16_HIGHA:
411e1bfb 15091 case R_PPC64_DTPREL16_HIGHERA:
411e1bfb 15092 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 15093 /* It's just possible that this symbol is a weak symbol
15094 that's not actually defined anywhere. In that case,
15095 'sec' would be NULL, and we should leave the symbol
15096 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 15097 if (sec == NULL)
15098 break;
1a0670f3 15099 /* Fall through. */
5c5f6e17
AM		 15100
15101 case R_PPC64_GOT16_HA:
15102 case R_PPC64_PLTGOT16_HA:
15103 case R_PPC64_PLT16_HA:
15104 case R_PPC64_GOT_TLSGD16_HA:
15105 case R_PPC64_GOT_TLSLD16_HA:
15106 case R_PPC64_GOT_TPREL16_HA:
15107 case R_PPC64_GOT_DTPREL16_HA:
15108 /* Add 0x10000 if sign bit in 0:15 is set.
15109 Bits 0:15 are not used. */
15110 addend += 0x8000;
65f38f15
AM		 15111 break;
15112
15113 case R_PPC64_ADDR16_DS:
15114 case R_PPC64_ADDR16_LO_DS:
15115 case R_PPC64_GOT16_DS:
15116 case R_PPC64_GOT16_LO_DS:
15117 case R_PPC64_PLT16_LO_DS:
15118 case R_PPC64_SECTOFF_DS:
15119 case R_PPC64_SECTOFF_LO_DS:
15120 case R_PPC64_TOC16_DS:
15121 case R_PPC64_TOC16_LO_DS:
15122 case R_PPC64_PLTGOT16_DS:
15123 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 15124 case R_PPC64_GOT_TPREL16_DS:
15125 case R_PPC64_GOT_TPREL16_LO_DS:
15126 case R_PPC64_GOT_DTPREL16_DS:
15127 case R_PPC64_GOT_DTPREL16_LO_DS:
15128 case R_PPC64_TPREL16_DS:
15129 case R_PPC64_TPREL16_LO_DS:
15130 case R_PPC64_DTPREL16_DS:
15131 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 15132 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
15133 mask = 3;
a680de9a
PB		 15134 /* If this reloc is against an lq, lxv, or stxv insn, then
15135 the value must be a multiple of 16. This is somewhat of
15136 a hack, but the "correct" way to do this by defining _DQ
15137 forms of all the _DS relocs bloats all reloc switches in
15138 this file. It doesn't make much sense to use these
15139 relocs in data, so testing the insn should be safe. */
15140 if ((insn & (0x3f << 26)) == (56u << 26)
15141 || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1))
adadcc0c 15142 mask = 15;
a680de9a
PB		 15143 relocation += addend;
15144 addend = insn & (mask ^ 3);
15145 if ((relocation & mask) != 0)
65f38f15 15146 {
a680de9a 15147 relocation ^= relocation & mask;
25f53a85 15148 info->callbacks->einfo
695344c0 15149 /* xgettext:c-format */
8de848d8 15150 (_("%P: %H: error: %s not a multiple of %u\n"),
25f53a85 15151 input_bfd, input_section, rel->r_offset,
b80eed39 15152 howto->name,
adadcc0c 15153 mask + 1);
65f38f15 15154 bfd_set_error (bfd_error_bad_value);
b34976b6 15155 ret = FALSE;
c316a17c 15156 goto copy_reloc;
65f38f15
AM		 15157 }
15158 break;
5bd4f169
AM		 15159 }
15160
239e1f3a
AM		 15161 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
15162 because such sections are not SEC_ALLOC and thus ld.so will
15163 not process them. */
65f38f15 15164 if (unresolved_reloc
239e1f3a 15165 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 15166 && h->elf.def_dynamic)
15167 && _bfd_elf_section_offset (output_bfd, info, input_section,
15168 rel->r_offset) != (bfd_vma) -1)
9c07fe7c 15169 {
25f53a85 15170 info->callbacks->einfo
695344c0 15171 /* xgettext:c-format */
bc30df16 15172 (_("%P: %H: unresolvable %s against `%T'\n"),
25f53a85 15173 input_bfd, input_section, rel->r_offset,
b80eed39 15174 howto->name,
039b3fef 15175 h->elf.root.root.string);
b34976b6 15176 ret = FALSE;
9c07fe7c 15177 }
5bd4f169 15178
b80eed39
AM		 15179 /* 16-bit fields in insns mostly have signed values, but a
15180 few insns have 16-bit unsigned values. Really, we should
15181 have different reloc types. */
15182 if (howto->complain_on_overflow != complain_overflow_dont
15183 && howto->dst_mask == 0xffff
15184 && (input_section->flags & SEC_CODE) != 0)
15185 {
15186 enum complain_overflow complain = complain_overflow_signed;
15187
15188 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM		 15189 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
15190 complain = complain_overflow_bitfield;
15191 else if (howto->rightshift == 0
15192 ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */
15193 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
15194 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
15195 : ((insn & (0x3f << 26)) == 29u << 26 /* andis */
15196 || (insn & (0x3f << 26)) == 25u << 26 /* oris */
15197 || (insn & (0x3f << 26)) == 27u << 26 /* xoris */))
b80eed39
AM		 15198 complain = complain_overflow_unsigned;
15199 if (howto->complain_on_overflow != complain)
15200 {
15201 alt_howto = *howto;
15202 alt_howto.complain_on_overflow = complain;
15203 howto = &alt_howto;
15204 }
15205 }
15206
a680de9a
PB		 15207 if (r_type == R_PPC64_REL16DX_HA)
15208 {
15209 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
15210 if (rel->r_offset + 4 > input_section->size)
15211 r = bfd_reloc_outofrange;
15212 else
15213 {
15214 relocation += addend;
15215 relocation -= (rel->r_offset
15216 + input_section->output_offset
15217 + input_section->output_section->vma);
15218 relocation = (bfd_signed_vma) relocation >> 16;
15219 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
15220 insn &= ~0x1fffc1;
15221 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
15222 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
15223 r = bfd_reloc_ok;
15224 if (relocation + 0x8000 > 0xffff)
15225 r = bfd_reloc_overflow;
15226 }
15227 }
15228 else
15229 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
15230 rel->r_offset, relocation, addend);
5bd4f169 15231
ef60b7ff 15232 if (r != bfd_reloc_ok)
5bd4f169 15233 {
bc30df16 15234 char *more_info = NULL;
b80eed39 15235 const char *reloc_name = howto->name;
bc30df16
AM		 15236
15237 if (reloc_dest != DEST_NORMAL)
15238 {
15239 more_info = bfd_malloc (strlen (reloc_name) + 8);
15240 if (more_info != NULL)
15241 {
15242 strcpy (more_info, reloc_name);
15243 strcat (more_info, (reloc_dest == DEST_OPD
15244 ? " (OPD)" : " (stub)"));
15245 reloc_name = more_info;
15246 }
15247 }
15248
cd27b276 15249 if (r == bfd_reloc_overflow)
5bd4f169 15250 {
8131c122
AM		 15251 /* On code like "if (foo) foo();" don't report overflow
15252 on a branch to zero when foo is undefined. */
15253 if (!warned
15254 && (reloc_dest == DEST_STUB
15255 || !(h != NULL
15256 && (h->elf.root.type == bfd_link_hash_undefweak
15257 || h->elf.root.type == bfd_link_hash_undefined)
15258 && is_branch_reloc (r_type))))
1a72702b
AM		 15259 info->callbacks->reloc_overflow (info, &h->elf.root,
15260 sym_name, reloc_name,
15261 orig_rel.r_addend,
15262 input_bfd, input_section,
15263 rel->r_offset);
ef60b7ff
AM		 15264 }
15265 else
15266 {
25f53a85 15267 info->callbacks->einfo
695344c0 15268 /* xgettext:c-format */
bc30df16 15269 (_("%P: %H: %s against `%T': error %d\n"),
25f53a85 15270 input_bfd, input_section, rel->r_offset,
bc30df16 15271 reloc_name, sym_name, (int) r);
b34976b6 15272 ret = FALSE;
ef60b7ff 15273 }
bc30df16
AM		 15274 if (more_info != NULL)
15275 free (more_info);
5bd4f169 15276 }
c316a17c
AM		 15277 copy_reloc:
15278 if (wrel != rel)
15279 *wrel = *rel;
15280 }
15281
15282 if (wrel != rel)
15283 {
15284 Elf_Internal_Shdr *rel_hdr;
15285 size_t deleted = rel - wrel;
15286
15287 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
15288 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
15289 if (rel_hdr->sh_size == 0)
15290 {
15291 /* It is too late to remove an empty reloc section. Leave
15292 one NONE reloc.
15293 ??? What is wrong with an empty section??? */
15294 rel_hdr->sh_size = rel_hdr->sh_entsize;
15295 deleted -= 1;
15296 }
15297 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
15298 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
15299 input_section->reloc_count -= deleted;
5bd4f169
AM		 15300 }
15301
645ea6a9
AM		 15302 /* If we're emitting relocations, then shortly after this function
15303 returns, reloc offsets and addends for this section will be
15304 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM		 15305 file rather than the input. Save a copy of the relocs for
15306 opd_entry_value. */
0e1862bb 15307 if (is_opd && (info->emitrelocations || bfd_link_relocatable (info)))
8860955f
AM		 15308 {
15309 bfd_size_type amt;
15310 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
15311 rel = bfd_alloc (input_bfd, amt);
729eabd5
AM		 15312 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL);
15313 ppc64_elf_tdata (input_bfd)->opd.relocs = rel;
8860955f
AM		 15314 if (rel == NULL)
15315 return FALSE;
15316 memcpy (rel, relocs, amt);
15317 }
5bd4f169
AM		 15318 return ret;
15319}
15320
754021d0
AM		 15321/* Adjust the value of any local symbols in opd sections. */
15322
6e0b88f1 15323static int
754021d0
AM		 15324ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
15325 const char *name ATTRIBUTE_UNUSED,
15326 Elf_Internal_Sym *elfsym,
15327 asection *input_sec,
15328 struct elf_link_hash_entry *h)
15329{
74f0fb50
AM		 15330 struct _opd_sec_data *opd;
15331 long adjust;
754021d0
AM		 15332 bfd_vma value;
15333
4025353c 15334 if (h != NULL)
6e0b88f1 15335 return 1;
4025353c 15336
74f0fb50
AM		 15337 opd = get_opd_info (input_sec);
15338 if (opd == NULL || opd->adjust == NULL)
6e0b88f1 15339 return 1;
754021d0
AM		 15340
15341 value = elfsym->st_value - input_sec->output_offset;
0e1862bb 15342 if (!bfd_link_relocatable (info))
754021d0
AM		 15343 value -= input_sec->output_section->vma;
15344
51aecdc5 15345 adjust = opd->adjust[OPD_NDX (value)];
4025353c 15346 if (adjust == -1)
6e0b88f1
AM		 15347 return 2;
15348
15349 elfsym->st_value += adjust;
15350 return 1;
754021d0
AM		 15351}
15352
5bd4f169
AM		 15353/* Finish up dynamic symbol handling. We set the contents of various
15354 dynamic sections here. */
15355
b34976b6 15356static bfd_boolean
4ce794b7
AM		 15357ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
15358 struct bfd_link_info *info,
15359 struct elf_link_hash_entry *h,
ab6dce23 15360 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5bd4f169 15361{
65f38f15 15362 struct ppc_link_hash_table *htab;
8387904d
AM		 15363 struct plt_entry *ent;
15364 Elf_Internal_Rela rela;
15365 bfd_byte *loc;
5bd4f169 15366
65f38f15 15367 htab = ppc_hash_table (info);
4dfe6ac6
NC		 15368 if (htab == NULL)
15369 return FALSE;
5bd4f169 15370
8387904d
AM		 15371 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
15372 if (ent->plt.offset != (bfd_vma) -1)
15373 {
15374 /* This symbol has an entry in the procedure linkage
15375 table. Set it up. */
e054468f
AM		 15376 if (!htab->elf.dynamic_sections_created
15377 || h->dynindx == -1)
15378 {
15379 BFD_ASSERT (h->type == STT_GNU_IFUNC
15380 && h->def_regular
15381 && (h->root.type == bfd_link_hash_defined
15382 || h->root.type == bfd_link_hash_defweak));
33e44f2e
AM		 15383 rela.r_offset = (htab->elf.iplt->output_section->vma
15384 + htab->elf.iplt->output_offset
25f23106 15385 + ent->plt.offset);
ee67d69a
AM		 15386 if (htab->opd_abi)
15387 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
15388 else
15389 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
e054468f
AM		 15390 rela.r_addend = (h->root.u.def.value
15391 + h->root.u.def.section->output_offset
15392 + h->root.u.def.section->output_section->vma
15393 + ent->addend);
33e44f2e
AM		 15394 loc = (htab->elf.irelplt->contents
15395 + (htab->elf.irelplt->reloc_count++
25f23106 15396 * sizeof (Elf64_External_Rela)));
e054468f
AM		 15397 }
15398 else
15399 {
33e44f2e
AM		 15400 rela.r_offset = (htab->elf.splt->output_section->vma
15401 + htab->elf.splt->output_offset
25f23106 15402 + ent->plt.offset);
e054468f
AM		 15403 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
15404 rela.r_addend = ent->addend;
33e44f2e 15405 loc = (htab->elf.srelplt->contents
b9e5796b
AM		 15406 + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab))
15407 / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela)));
e054468f 15408 }
8387904d 15409 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
a345bc8d
AM		 15410
15411 if (!htab->opd_abi)
15412 {
15413 if (!h->def_regular)
15414 {
15415 /* Mark the symbol as undefined, rather than as
15416 defined in glink. Leave the value if there were
15417 any relocations where pointer equality matters
15418 (this is a clue for the dynamic linker, to make
15419 function pointer comparisons work between an
15420 application and shared library), otherwise set it
15421 to zero. */
15422 sym->st_shndx = SHN_UNDEF;
15423 if (!h->pointer_equality_needed)
15424 sym->st_value = 0;
15425 else if (!h->ref_regular_nonweak)
15426 {
15427 /* This breaks function pointer comparisons, but
15428 that is better than breaking tests for a NULL
15429 function pointer. */
15430 sym->st_value = 0;
15431 }
15432 }
15433 }
8387904d 15434 }
5bd4f169 15435
f5385ebf 15436 if (h->needs_copy)
5bd4f169 15437 {
65f38f15 15438 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 15439
65f38f15
AM		 15440 if (h->dynindx == -1
15441 || (h->root.type != bfd_link_hash_defined
15442 && h->root.type != bfd_link_hash_defweak)
4ce794b7 15443 || htab->relbss == NULL)
65f38f15 15444 abort ();
5bd4f169
AM		 15445
15446 rela.r_offset = (h->root.u.def.value
15447 + h->root.u.def.section->output_section->vma
15448 + h->root.u.def.section->output_offset);
15449 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
15450 rela.r_addend = 0;
4ce794b7
AM		 15451 loc = htab->relbss->contents;
15452 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 15453 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 15454 }
15455
b34976b6 15456 return TRUE;
5bd4f169
AM		 15457}
15458
65f38f15
AM		 15459/* Used to decide how to sort relocs in an optimal manner for the
15460 dynamic linker, before writing them out. */
15461
15462static enum elf_reloc_type_class
7e612e98
AM		 15463ppc64_elf_reloc_type_class (const struct bfd_link_info *info,
15464 const asection *rel_sec,
15465 const Elf_Internal_Rela *rela)
65f38f15 15466{
04c9666a 15467 enum elf_ppc64_reloc_type r_type;
7e612e98
AM		 15468 struct ppc_link_hash_table *htab = ppc_hash_table (info);
15469
33e44f2e 15470 if (rel_sec == htab->elf.irelplt)
7e612e98 15471 return reloc_class_ifunc;
a33d1f77 15472
4ce794b7 15473 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 15474 switch (r_type)
65f38f15
AM		 15475 {
15476 case R_PPC64_RELATIVE:
15477 return reloc_class_relative;
15478 case R_PPC64_JMP_SLOT:
15479 return reloc_class_plt;
15480 case R_PPC64_COPY:
15481 return reloc_class_copy;
15482 default:
15483 return reloc_class_normal;
15484 }
15485}
15486
5bd4f169
AM		 15487/* Finish up the dynamic sections. */
15488
b34976b6 15489static bfd_boolean
4ce794b7
AM		 15490ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
15491 struct bfd_link_info *info)
5bd4f169 15492{
65f38f15
AM		 15493 struct ppc_link_hash_table *htab;
15494 bfd *dynobj;
5bd4f169 15495 asection *sdyn;
5bd4f169 15496
65f38f15 15497 htab = ppc_hash_table (info);
4dfe6ac6
NC		 15498 if (htab == NULL)
15499 return FALSE;
15500
65f38f15 15501 dynobj = htab->elf.dynobj;
3d4d4302 15502 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5bd4f169 15503
65f38f15 15504 if (htab->elf.dynamic_sections_created)
5bd4f169 15505 {
5bd4f169
AM		 15506 Elf64_External_Dyn *dyncon, *dynconend;
15507
33e44f2e 15508 if (sdyn == NULL || htab->elf.sgot == NULL)
65f38f15 15509 abort ();
5bd4f169
AM		 15510
15511 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 15512 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 15513 for (; dyncon < dynconend; dyncon++)
15514 {
15515 Elf_Internal_Dyn dyn;
19397422 15516 asection *s;
5bd4f169
AM		 15517
15518 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
15519
15520 switch (dyn.d_tag)
15521 {
65f38f15
AM		 15522 default:
15523 continue;
5bd4f169 15524
5d1634d7 15525 case DT_PPC64_GLINK:
4ce794b7 15526 s = htab->glink;
6348e046 15527 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 15528 /* We stupidly defined DT_PPC64_GLINK to be the start
15529 of glink rather than the first entry point, which is
15530 what ld.so needs, and now have a bigger stub to
15531 support automatic multiple TOCs. */
b9e5796b 15532 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4;
5d1634d7
AM		 15533 break;
15534
19397422
AM		 15535 case DT_PPC64_OPD:
15536 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 15537 if (s == NULL)
15538 continue;
15539 dyn.d_un.d_ptr = s->vma;
19397422
AM		 15540 break;
15541
e8910a83
AM		 15542 case DT_PPC64_OPT:
15543 if (htab->do_multi_toc && htab->multi_toc_needed)
15544 dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC;
15545 break;
15546
19397422
AM		 15547 case DT_PPC64_OPDSZ:
15548 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 15549 if (s == NULL)
15550 continue;
eea6121a 15551 dyn.d_un.d_val = s->size;
19397422
AM		 15552 break;
15553
65f38f15 15554 case DT_PLTGOT:
33e44f2e 15555 s = htab->elf.splt;
6348e046 15556 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 15557 break;
15558
15559 case DT_JMPREL:
33e44f2e 15560 s = htab->elf.srelplt;
6348e046 15561 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 15562 break;
5bd4f169 15563
65f38f15 15564 case DT_PLTRELSZ:
33e44f2e 15565 dyn.d_un.d_val = htab->elf.srelplt->size;
5d1634d7
AM		 15566 break;
15567
15568 case DT_RELASZ:
15569 /* Don't count procedure linkage table relocs in the
15570 overall reloc count. */
33e44f2e 15571 s = htab->elf.srelplt;
6348e046
AM		 15572 if (s == NULL)
15573 continue;
eea6121a 15574 dyn.d_un.d_val -= s->size;
6348e046
AM		 15575 break;
15576
15577 case DT_RELA:
15578 /* We may not be using the standard ELF linker script.
15579 If .rela.plt is the first .rela section, we adjust
15580 DT_RELA to not include it. */
33e44f2e 15581 s = htab->elf.srelplt;
6348e046
AM		 15582 if (s == NULL)
15583 continue;
15584 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
15585 continue;
eea6121a 15586 dyn.d_un.d_ptr += s->size;
65f38f15 15587 break;
5bd4f169 15588 }
5bd4f169 15589
65f38f15 15590 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 15591 }
5bd4f169
AM		 15592 }
15593
33e44f2e 15594 if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0)
5d1634d7
AM		 15595 {
15596 /* Fill in the first entry in the global offset table.
15597 We use it to hold the link-time TOCbase. */
15598 bfd_put_64 (output_bfd,
60ee0d4a 15599 elf_gp (output_bfd) + TOC_BASE_OFF,
33e44f2e 15600 htab->elf.sgot->contents);
5d1634d7
AM		 15601
15602 /* Set .got entry size. */
33e44f2e 15603 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 15604 }
15605
33e44f2e 15606 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
5d1634d7
AM		 15607 {
15608 /* Set .plt entry size. */
33e44f2e 15609 elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize
b9e5796b 15610 = PLT_ENTRY_SIZE (htab);
5d1634d7
AM		 15611 }
15612
84f5d08e
AM		 15613 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
15614 brlt ourselves if emitrelocations. */
15615 if (htab->brlt != NULL
15616 && htab->brlt->reloc_count != 0
15617 && !_bfd_elf_link_output_relocs (output_bfd,
15618 htab->brlt,
d4730f92 15619 elf_section_data (htab->brlt)->rela.hdr,
84f5d08e
AM		 15620 elf_section_data (htab->brlt)->relocs,
15621 NULL))
15622 return FALSE;
15623
176a0d42
AM		 15624 if (htab->glink != NULL
15625 && htab->glink->reloc_count != 0
15626 && !_bfd_elf_link_output_relocs (output_bfd,
15627 htab->glink,
d4730f92 15628 elf_section_data (htab->glink)->rela.hdr,
176a0d42
AM		 15629 elf_section_data (htab->glink)->relocs,
15630 NULL))
15631 return FALSE;
15632
58d180e8 15633 if (htab->glink_eh_frame != NULL
da44f4e5
AM		 15634 && htab->glink_eh_frame->size != 0)
15635 {
15636 bfd_vma val;
15637 bfd_byte *p;
15638 asection *stub_sec;
15639
15640 p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie);
15641 for (stub_sec = htab->params->stub_bfd->sections;
15642 stub_sec != NULL;
15643 stub_sec = stub_sec->next)
15644 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
15645 {
15646 /* FDE length. */
15647 p += 4;
15648 /* CIE pointer. */
15649 p += 4;
15650 /* Offset to stub section. */
15651 val = (stub_sec->output_section->vma
15652 + stub_sec->output_offset);
15653 val -= (htab->glink_eh_frame->output_section->vma
15654 + htab->glink_eh_frame->output_offset
15655 + (p - htab->glink_eh_frame->contents));
15656 if (val + 0x80000000 > 0xffffffff)
15657 {
15658 info->callbacks->einfo
15659 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15660 stub_sec->name);
15661 return FALSE;
15662 }
15663 bfd_put_32 (dynobj, val, p);
15664 p += 4;
15665 /* stub section size. */
15666 p += 4;
15667 /* Augmentation. */
15668 p += 1;
15669 /* Pad. */
15670 p += 7;
15671 }
15672 if (htab->glink != NULL && htab->glink->size != 0)
15673 {
15674 /* FDE length. */
15675 p += 4;
15676 /* CIE pointer. */
15677 p += 4;
15678 /* Offset to .glink. */
15679 val = (htab->glink->output_section->vma
15680 + htab->glink->output_offset
15681 + 8);
15682 val -= (htab->glink_eh_frame->output_section->vma
15683 + htab->glink_eh_frame->output_offset
15684 + (p - htab->glink_eh_frame->contents));
15685 if (val + 0x80000000 > 0xffffffff)
15686 {
15687 info->callbacks->einfo
15688 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15689 htab->glink->name);
15690 return FALSE;
15691 }
15692 bfd_put_32 (dynobj, val, p);
15693 p += 4;
15694 /* .glink size. */
15695 p += 4;
15696 /* Augmentation. */
15697 p += 1;
15698 /* Ops. */
15699 p += 7;
15700 }
15701
15702 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
15703 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
15704 htab->glink_eh_frame,
15705 htab->glink_eh_frame->contents))
15706 return FALSE;
15707 }
58d180e8 15708
e717da7e 15709 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM		 15710 since we didn't add them to DYNOBJ. We know dynobj is the first
15711 bfd. */
c72f2fb2 15712 while ((dynobj = dynobj->link.next) != NULL)
e717da7e
AM		 15713 {
15714 asection *s;
7b53ace3 15715
0c8d6e5c 15716 if (!is_ppc64_elf (dynobj))
7b53ace3
AM		 15717 continue;
15718
e717da7e
AM		 15719 s = ppc64_elf_tdata (dynobj)->got;
15720 if (s != NULL
eea6121a 15721 && s->size != 0
e717da7e
AM		 15722 && s->output_section != bfd_abs_section_ptr
15723 && !bfd_set_section_contents (output_bfd, s->output_section,
15724 s->contents, s->output_offset,
eea6121a 15725 s->size))
e717da7e
AM		 15726 return FALSE;
15727 s = ppc64_elf_tdata (dynobj)->relgot;
15728 if (s != NULL
eea6121a 15729 && s->size != 0
e717da7e
AM		 15730 && s->output_section != bfd_abs_section_ptr
15731 && !bfd_set_section_contents (output_bfd, s->output_section,
15732 s->contents, s->output_offset,
eea6121a 15733 s->size))
e717da7e
AM		 15734 return FALSE;
15735 }
f6c52c13 15736
b34976b6 15737 return TRUE;
5bd4f169
AM		 15738}
15739
5bd4f169 15740#include "elf64-target.h"
7b8e7dad
AM		 15741
15742/* FreeBSD support */
15743
15744#undef TARGET_LITTLE_SYM
15745#undef TARGET_LITTLE_NAME
15746
15747#undef TARGET_BIG_SYM
6d00b590 15748#define TARGET_BIG_SYM powerpc_elf64_fbsd_vec
7b8e7dad
AM		 15749#undef TARGET_BIG_NAME
15750#define TARGET_BIG_NAME "elf64-powerpc-freebsd"
15751
15752#undef ELF_OSABI
15753#define ELF_OSABI ELFOSABI_FREEBSD
15754
15755#undef elf64_bed
15756#define elf64_bed elf64_powerpc_fbsd_bed
15757
15758#include "elf64-target.h"
15759
GDB Binutils - Deliverables
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