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[AArch64] Remove duplicated code when handling some GOT relocations types
[deliverable/binutils-gdb.git] / bfd / elfnn-aarch64.c
CommitLineData
cec5225b 1/* AArch64-specific support for NN-bit ELF.
2571583a 2 Copyright (C) 2009-2017 Free Software Foundation, Inc.
a06ea964
NC		 3 Contributed by ARM Ltd.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; see the file COPYING3. If not,
19 see <http://www.gnu.org/licenses/>. */
20
21/* Notes on implementation:
22
23 Thread Local Store (TLS)
24
25 Overview:
26
27 The implementation currently supports both traditional TLS and TLS
28 descriptors, but only general dynamic (GD).
29
30 For traditional TLS the assembler will present us with code
31 fragments of the form:
32
33 adrp x0, :tlsgd:foo
34 R_AARCH64_TLSGD_ADR_PAGE21(foo)
35 add x0, :tlsgd_lo12:foo
36 R_AARCH64_TLSGD_ADD_LO12_NC(foo)
37 bl __tls_get_addr
38 nop
39
40 For TLS descriptors the assembler will present us with code
41 fragments of the form:
42
418009c2 43 adrp x0, :tlsdesc:foo R_AARCH64_TLSDESC_ADR_PAGE21(foo)
a06ea964
NC		 44 ldr x1, [x0, #:tlsdesc_lo12:foo] R_AARCH64_TLSDESC_LD64_LO12(foo)
45 add x0, x0, #:tlsdesc_lo12:foo R_AARCH64_TLSDESC_ADD_LO12(foo)
46 .tlsdesccall foo
47 blr x1 R_AARCH64_TLSDESC_CALL(foo)
48
49 The relocations R_AARCH64_TLSGD_{ADR_PREL21,ADD_LO12_NC} against foo
50 indicate that foo is thread local and should be accessed via the
51 traditional TLS mechanims.
52
a6bb11b2 53 The relocations R_AARCH64_TLSDESC_{ADR_PAGE21,LD64_LO12_NC,ADD_LO12_NC}
a06ea964
NC		 54 against foo indicate that 'foo' is thread local and should be accessed
55 via a TLS descriptor mechanism.
56
57 The precise instruction sequence is only relevant from the
58 perspective of linker relaxation which is currently not implemented.
59
60 The static linker must detect that 'foo' is a TLS object and
61 allocate a double GOT entry. The GOT entry must be created for both
62 global and local TLS symbols. Note that this is different to none
63 TLS local objects which do not need a GOT entry.
64
65 In the traditional TLS mechanism, the double GOT entry is used to
66 provide the tls_index structure, containing module and offset
a6bb11b2 67 entries. The static linker places the relocation R_AARCH64_TLS_DTPMOD
a06ea964
NC		 68 on the module entry. The loader will subsequently fixup this
69 relocation with the module identity.
70
71 For global traditional TLS symbols the static linker places an
a6bb11b2 72 R_AARCH64_TLS_DTPREL relocation on the offset entry. The loader
a06ea964
NC		 73 will subsequently fixup the offset. For local TLS symbols the static
74 linker fixes up offset.
75
76 In the TLS descriptor mechanism the double GOT entry is used to
77 provide the descriptor. The static linker places the relocation
78 R_AARCH64_TLSDESC on the first GOT slot. The loader will
79 subsequently fix this up.
80
81 Implementation:
82
83 The handling of TLS symbols is implemented across a number of
84 different backend functions. The following is a top level view of
85 what processing is performed where.
86
87 The TLS implementation maintains state information for each TLS
88 symbol. The state information for local and global symbols is kept
89 in different places. Global symbols use generic BFD structures while
90 local symbols use backend specific structures that are allocated and
91 maintained entirely by the backend.
92
93 The flow:
94
cec5225b 95 elfNN_aarch64_check_relocs()
a06ea964
NC		 96
97 This function is invoked for each relocation.
98
99 The TLS relocations R_AARCH64_TLSGD_{ADR_PREL21,ADD_LO12_NC} and
a6bb11b2 100 R_AARCH64_TLSDESC_{ADR_PAGE21,LD64_LO12_NC,ADD_LO12_NC} are
a06ea964
NC		 101 spotted. One time creation of local symbol data structures are
102 created when the first local symbol is seen.
103
104 The reference count for a symbol is incremented. The GOT type for
105 each symbol is marked as general dynamic.
106
cec5225b 107 elfNN_aarch64_allocate_dynrelocs ()
a06ea964
NC		 108
109 For each global with positive reference count we allocate a double
110 GOT slot. For a traditional TLS symbol we allocate space for two
111 relocation entries on the GOT, for a TLS descriptor symbol we
112 allocate space for one relocation on the slot. Record the GOT offset
113 for this symbol.
114
cec5225b 115 elfNN_aarch64_size_dynamic_sections ()
a06ea964
NC		 116
117 Iterate all input BFDS, look for in the local symbol data structure
118 constructed earlier for local TLS symbols and allocate them double
119 GOT slots along with space for a single GOT relocation. Update the
120 local symbol structure to record the GOT offset allocated.
121
cec5225b 122 elfNN_aarch64_relocate_section ()
a06ea964 123
cec5225b 124 Calls elfNN_aarch64_final_link_relocate ()
a06ea964
NC		 125
126 Emit the relevant TLS relocations against the GOT for each TLS
127 symbol. For local TLS symbols emit the GOT offset directly. The GOT
128 relocations are emitted once the first time a TLS symbol is
129 encountered. The implementation uses the LSB of the GOT offset to
130 flag that the relevant GOT relocations for a symbol have been
131 emitted. All of the TLS code that uses the GOT offset needs to take
132 care to mask out this flag bit before using the offset.
133
cec5225b 134 elfNN_aarch64_final_link_relocate ()
a06ea964
NC		 135
136 Fixup the R_AARCH64_TLSGD_{ADR_PREL21, ADD_LO12_NC} relocations. */
137
138#include "sysdep.h"
139#include "bfd.h"
140#include "libiberty.h"
141#include "libbfd.h"
142#include "bfd_stdint.h"
143#include "elf-bfd.h"
144#include "bfdlink.h"
1419bbe5 145#include "objalloc.h"
a06ea964 146#include "elf/aarch64.h"
caed7120 147#include "elfxx-aarch64.h"
a06ea964 148
cec5225b
YZ		 149#define ARCH_SIZE NN
150
151#if ARCH_SIZE == 64
152#define AARCH64_R(NAME) R_AARCH64_ ## NAME
153#define AARCH64_R_STR(NAME) "R_AARCH64_" #NAME
a6bb11b2
YZ		 154#define HOWTO64(...) HOWTO (__VA_ARGS__)
155#define HOWTO32(...) EMPTY_HOWTO (0)
cec5225b 156#define LOG_FILE_ALIGN 3
f955cccf 157#define BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC BFD_RELOC_AARCH64_TLSDESC_LD64_LO12
cec5225b
YZ		 158#endif
159
160#if ARCH_SIZE == 32
161#define AARCH64_R(NAME) R_AARCH64_P32_ ## NAME
162#define AARCH64_R_STR(NAME) "R_AARCH64_P32_" #NAME
a6bb11b2
YZ		 163#define HOWTO64(...) EMPTY_HOWTO (0)
164#define HOWTO32(...) HOWTO (__VA_ARGS__)
cec5225b 165#define LOG_FILE_ALIGN 2
f955cccf
NC		 166#define BFD_RELOC_AARCH64_TLSDESC_LD32_LO12 BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC
167#define R_AARCH64_P32_TLSDESC_ADD_LO12 R_AARCH64_P32_TLSDESC_ADD_LO12_NC
cec5225b
YZ		 168#endif
169
a6bb11b2 170#define IS_AARCH64_TLS_RELOC(R_TYPE) \
4c0a9a6f
JW		 171 ((R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC \
172 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21 \
3c12b054 173 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PREL21 \
3e8286c0 174 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC \
1aa66fb1 175 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G1 \
a6bb11b2 176 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 \
a6bb11b2 177 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC \
4c0a9a6f 178 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC \
a6bb11b2 179 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19 \
4c0a9a6f
JW		 180 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC \
181 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1 \
6ffe9a1b 182 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12 \
40fbed84 183 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12 \
753999c1 184 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC \
73f925cc 185 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC \
f69e4920 186 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 \
77a69ff8 187 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 \
07c9aa07
JW		 188 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12 \
189 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC \
190 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12 \
191 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC \
192 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12 \
193 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC \
194 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12 \
195 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC \
6ffe9a1b
JW		 196 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0 \
197 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC \
198 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1 \
199 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC \
200 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2 \
a6bb11b2 201 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12 \
4c0a9a6f 202 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12 \
a6bb11b2 203 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC \
a6bb11b2
YZ		 204 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0 \
205 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC \
4c0a9a6f
JW		 206 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 \
207 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC \
208 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 \
a6bb11b2
YZ		 209 || (R_TYPE) == BFD_RELOC_AARCH64_TLS_DTPMOD \
210 || (R_TYPE) == BFD_RELOC_AARCH64_TLS_DTPREL \
211 || (R_TYPE) == BFD_RELOC_AARCH64_TLS_TPREL \
a06ea964
NC		 212 || IS_AARCH64_TLSDESC_RELOC ((R_TYPE)))
213
9331eea1 214#define IS_AARCH64_TLS_RELAX_RELOC(R_TYPE) \
f955cccf
NC		 215 ((R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD \
216 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD_LO12 \
4af68b9c
JW		 217 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21 \
218 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21 \
219 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_CALL \
220 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD_PREL19 \
221 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC \
0484b454
RL		 222 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \
223 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC \
224 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G1 \
225 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \
4af68b9c 226 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21 \
9331eea1
JW		 227 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PREL21 \
228 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC \
ac734732
RL		 229 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC \
230 || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G1 \
9331eea1
JW		 231 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 \
232 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19 \
233 || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC \
259364ad
JW		 234 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC \
235 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 \
4af68b9c 236 || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21)
9331eea1 237
a6bb11b2 238#define IS_AARCH64_TLSDESC_RELOC(R_TYPE) \
4c0a9a6f
JW		 239 ((R_TYPE) == BFD_RELOC_AARCH64_TLSDESC \
240 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD \
f955cccf 241 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD_LO12 \
a6bb11b2 242 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21 \
389b8029 243 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21 \
4c0a9a6f 244 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_CALL \
a6bb11b2 245 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC \
f955cccf 246 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD64_LO12 \
a6bb11b2 247 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \
4c0a9a6f
JW		 248 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD_PREL19 \
249 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC \
250 || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G1)
a06ea964 251
6353d82b 252#define ELIMINATE_COPY_RELOCS 1
a06ea964 253
a06ea964 254/* Return size of a relocation entry. HTAB is the bfd's
cec5225b
YZ		 255 elf_aarch64_link_hash_entry. */
256#define RELOC_SIZE(HTAB) (sizeof (ElfNN_External_Rela))
a06ea964 257
cec5225b
YZ		 258/* GOT Entry size - 8 bytes in ELF64 and 4 bytes in ELF32. */
259#define GOT_ENTRY_SIZE (ARCH_SIZE / 8)
a06ea964
NC		 260#define PLT_ENTRY_SIZE (32)
261#define PLT_SMALL_ENTRY_SIZE (16)
262#define PLT_TLSDESC_ENTRY_SIZE (32)
263
2d0ca824 264/* Encoding of the nop instruction. */
a06ea964
NC		 265#define INSN_NOP 0xd503201f
266
267#define aarch64_compute_jump_table_size(htab) \
268 (((htab)->root.srelplt == NULL) ? 0 \
269 : (htab)->root.srelplt->reloc_count * GOT_ENTRY_SIZE)
270
271/* The first entry in a procedure linkage table looks like this
272 if the distance between the PLTGOT and the PLT is < 4GB use
273 these PLT entries. Note that the dynamic linker gets &PLTGOT[2]
274 in x16 and needs to work out PLTGOT[1] by using an address of
cec5225b
YZ		 275 [x16,#-GOT_ENTRY_SIZE]. */
276static const bfd_byte elfNN_aarch64_small_plt0_entry[PLT_ENTRY_SIZE] =
a06ea964
NC		 277{
278 0xf0, 0x7b, 0xbf, 0xa9, /* stp x16, x30, [sp, #-16]! */
279 0x10, 0x00, 0x00, 0x90, /* adrp x16, (GOT+16) */
caed7120 280#if ARCH_SIZE == 64
a06ea964
NC		 281 0x11, 0x0A, 0x40, 0xf9, /* ldr x17, [x16, #PLT_GOT+0x10] */
282 0x10, 0x42, 0x00, 0x91, /* add x16, x16,#PLT_GOT+0x10 */
caed7120
YZ		 283#else
284 0x11, 0x0A, 0x40, 0xb9, /* ldr w17, [x16, #PLT_GOT+0x8] */
285 0x10, 0x22, 0x00, 0x11, /* add w16, w16,#PLT_GOT+0x8 */
286#endif
a06ea964
NC		 287 0x20, 0x02, 0x1f, 0xd6, /* br x17 */
288 0x1f, 0x20, 0x03, 0xd5, /* nop */
289 0x1f, 0x20, 0x03, 0xd5, /* nop */
290 0x1f, 0x20, 0x03, 0xd5, /* nop */
291};
292
293/* Per function entry in a procedure linkage table looks like this
294 if the distance between the PLTGOT and the PLT is < 4GB use
295 these PLT entries. */
cec5225b 296static const bfd_byte elfNN_aarch64_small_plt_entry[PLT_SMALL_ENTRY_SIZE] =
a06ea964
NC		 297{
298 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */
caed7120 299#if ARCH_SIZE == 64
a06ea964
NC		 300 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */
301 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */
caed7120
YZ		 302#else
303 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */
304 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */
305#endif
a06ea964
NC		 306 0x20, 0x02, 0x1f, 0xd6, /* br x17. */
307};
308
309static const bfd_byte
cec5225b 310elfNN_aarch64_tlsdesc_small_plt_entry[PLT_TLSDESC_ENTRY_SIZE] =
a06ea964
NC		 311{
312 0xe2, 0x0f, 0xbf, 0xa9, /* stp x2, x3, [sp, #-16]! */
313 0x02, 0x00, 0x00, 0x90, /* adrp x2, 0 */
314 0x03, 0x00, 0x00, 0x90, /* adrp x3, 0 */
caed7120
YZ		 315#if ARCH_SIZE == 64
316 0x42, 0x00, 0x40, 0xf9, /* ldr x2, [x2, #0] */
a06ea964 317 0x63, 0x00, 0x00, 0x91, /* add x3, x3, 0 */
caed7120
YZ		 318#else
319 0x42, 0x00, 0x40, 0xb9, /* ldr w2, [x2, #0] */
320 0x63, 0x00, 0x00, 0x11, /* add w3, w3, 0 */
321#endif
322 0x40, 0x00, 0x1f, 0xd6, /* br x2 */
a06ea964
NC		 323 0x1f, 0x20, 0x03, 0xd5, /* nop */
324 0x1f, 0x20, 0x03, 0xd5, /* nop */
325};
326
cec5225b
YZ		 327#define elf_info_to_howto elfNN_aarch64_info_to_howto
328#define elf_info_to_howto_rel elfNN_aarch64_info_to_howto
a06ea964
NC		 329
330#define AARCH64_ELF_ABI_VERSION 0
a06ea964
NC		 331
332/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
333#define ALL_ONES (~ (bfd_vma) 0)
334
a6bb11b2
YZ		 335/* Indexed by the bfd interal reloc enumerators.
336 Therefore, the table needs to be synced with BFD_RELOC_AARCH64_*
337 in reloc.c. */
a06ea964 338
a6bb11b2 339static reloc_howto_type elfNN_aarch64_howto_table[] =
a06ea964 340{
a6bb11b2 341 EMPTY_HOWTO (0),
a06ea964 342
a6bb11b2 343 /* Basic data relocations. */
a06ea964 344
b7f28d87
JW		 345 /* Deprecated, but retained for backwards compatibility. */
346 HOWTO64 (R_AARCH64_NULL, /* type */
a06ea964 347 0, /* rightshift */
6346d5ca 348 3, /* size (0 = byte, 1 = short, 2 = long) */
a6bb11b2 349 0, /* bitsize */
a06ea964
NC		 350 FALSE, /* pc_relative */
351 0, /* bitpos */
352 complain_overflow_dont, /* complain_on_overflow */
353 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 354 "R_AARCH64_NULL", /* name */
a06ea964
NC		 355 FALSE, /* partial_inplace */
356 0, /* src_mask */
a6bb11b2 357 0, /* dst_mask */
a06ea964 358 FALSE), /* pcrel_offset */
a6bb11b2 359 HOWTO (R_AARCH64_NONE, /* type */
a06ea964 360 0, /* rightshift */
6346d5ca 361 3, /* size (0 = byte, 1 = short, 2 = long) */
a06ea964
NC		 362 0, /* bitsize */
363 FALSE, /* pc_relative */
364 0, /* bitpos */
365 complain_overflow_dont, /* complain_on_overflow */
366 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 367 "R_AARCH64_NONE", /* name */
a06ea964
NC		 368 FALSE, /* partial_inplace */
369 0, /* src_mask */
370 0, /* dst_mask */
371 FALSE), /* pcrel_offset */
372
373 /* .xword: (S+A) */
a6bb11b2 374 HOWTO64 (AARCH64_R (ABS64), /* type */
a06ea964
NC		 375 0, /* rightshift */
376 4, /* size (4 = long long) */
377 64, /* bitsize */
378 FALSE, /* pc_relative */
379 0, /* bitpos */
380 complain_overflow_unsigned, /* complain_on_overflow */
381 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 382 AARCH64_R_STR (ABS64), /* name */
a06ea964
NC		 383 FALSE, /* partial_inplace */
384 ALL_ONES, /* src_mask */
385 ALL_ONES, /* dst_mask */
386 FALSE), /* pcrel_offset */
387
388 /* .word: (S+A) */
a6bb11b2 389 HOWTO (AARCH64_R (ABS32), /* type */
a06ea964
NC		 390 0, /* rightshift */
391 2, /* size (0 = byte, 1 = short, 2 = long) */
392 32, /* bitsize */
393 FALSE, /* pc_relative */
394 0, /* bitpos */
395 complain_overflow_unsigned, /* complain_on_overflow */
396 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 397 AARCH64_R_STR (ABS32), /* name */
a06ea964
NC		 398 FALSE, /* partial_inplace */
399 0xffffffff, /* src_mask */
400 0xffffffff, /* dst_mask */
401 FALSE), /* pcrel_offset */
402
403 /* .half: (S+A) */
a6bb11b2 404 HOWTO (AARCH64_R (ABS16), /* type */
a06ea964
NC		 405 0, /* rightshift */
406 1, /* size (0 = byte, 1 = short, 2 = long) */
407 16, /* bitsize */
408 FALSE, /* pc_relative */
409 0, /* bitpos */
410 complain_overflow_unsigned, /* complain_on_overflow */
411 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 412 AARCH64_R_STR (ABS16), /* name */
a06ea964
NC		 413 FALSE, /* partial_inplace */
414 0xffff, /* src_mask */
415 0xffff, /* dst_mask */
416 FALSE), /* pcrel_offset */
417
418 /* .xword: (S+A-P) */
a6bb11b2 419 HOWTO64 (AARCH64_R (PREL64), /* type */
a06ea964
NC		 420 0, /* rightshift */
421 4, /* size (4 = long long) */
422 64, /* bitsize */
423 TRUE, /* pc_relative */
424 0, /* bitpos */
425 complain_overflow_signed, /* complain_on_overflow */
426 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 427 AARCH64_R_STR (PREL64), /* name */
a06ea964
NC		 428 FALSE, /* partial_inplace */
429 ALL_ONES, /* src_mask */
430 ALL_ONES, /* dst_mask */
431 TRUE), /* pcrel_offset */
432
433 /* .word: (S+A-P) */
a6bb11b2 434 HOWTO (AARCH64_R (PREL32), /* type */
a06ea964
NC		 435 0, /* rightshift */
436 2, /* size (0 = byte, 1 = short, 2 = long) */
437 32, /* bitsize */
438 TRUE, /* pc_relative */
439 0, /* bitpos */
440 complain_overflow_signed, /* complain_on_overflow */
441 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 442 AARCH64_R_STR (PREL32), /* name */
a06ea964
NC		 443 FALSE, /* partial_inplace */
444 0xffffffff, /* src_mask */
445 0xffffffff, /* dst_mask */
446 TRUE), /* pcrel_offset */
447
448 /* .half: (S+A-P) */
a6bb11b2 449 HOWTO (AARCH64_R (PREL16), /* type */
a06ea964
NC		 450 0, /* rightshift */
451 1, /* size (0 = byte, 1 = short, 2 = long) */
452 16, /* bitsize */
453 TRUE, /* pc_relative */
454 0, /* bitpos */
455 complain_overflow_signed, /* complain_on_overflow */
456 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 457 AARCH64_R_STR (PREL16), /* name */
a06ea964
NC		 458 FALSE, /* partial_inplace */
459 0xffff, /* src_mask */
460 0xffff, /* dst_mask */
461 TRUE), /* pcrel_offset */
462
463 /* Group relocations to create a 16, 32, 48 or 64 bit
464 unsigned data or abs address inline. */
465
466 /* MOVZ: ((S+A) >> 0) & 0xffff */
a6bb11b2 467 HOWTO (AARCH64_R (MOVW_UABS_G0), /* type */
a06ea964
NC		 468 0, /* rightshift */
469 2, /* size (0 = byte, 1 = short, 2 = long) */
470 16, /* bitsize */
471 FALSE, /* pc_relative */
472 0, /* bitpos */
473 complain_overflow_unsigned, /* complain_on_overflow */
474 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 475 AARCH64_R_STR (MOVW_UABS_G0), /* name */
a06ea964
NC		 476 FALSE, /* partial_inplace */
477 0xffff, /* src_mask */
478 0xffff, /* dst_mask */
479 FALSE), /* pcrel_offset */
480
481 /* MOVK: ((S+A) >> 0) & 0xffff [no overflow check] */
a6bb11b2 482 HOWTO (AARCH64_R (MOVW_UABS_G0_NC), /* type */
a06ea964
NC		 483 0, /* rightshift */
484 2, /* size (0 = byte, 1 = short, 2 = long) */
485 16, /* bitsize */
486 FALSE, /* pc_relative */
487 0, /* bitpos */
488 complain_overflow_dont, /* complain_on_overflow */
489 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 490 AARCH64_R_STR (MOVW_UABS_G0_NC), /* name */
a06ea964
NC		 491 FALSE, /* partial_inplace */
492 0xffff, /* src_mask */
493 0xffff, /* dst_mask */
494 FALSE), /* pcrel_offset */
495
496 /* MOVZ: ((S+A) >> 16) & 0xffff */
a6bb11b2 497 HOWTO (AARCH64_R (MOVW_UABS_G1), /* type */
a06ea964
NC		 498 16, /* rightshift */
499 2, /* size (0 = byte, 1 = short, 2 = long) */
500 16, /* bitsize */
501 FALSE, /* pc_relative */
502 0, /* bitpos */
503 complain_overflow_unsigned, /* complain_on_overflow */
504 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 505 AARCH64_R_STR (MOVW_UABS_G1), /* name */
a06ea964
NC		 506 FALSE, /* partial_inplace */
507 0xffff, /* src_mask */
508 0xffff, /* dst_mask */
509 FALSE), /* pcrel_offset */
510
511 /* MOVK: ((S+A) >> 16) & 0xffff [no overflow check] */
a6bb11b2 512 HOWTO64 (AARCH64_R (MOVW_UABS_G1_NC), /* type */
a06ea964
NC		 513 16, /* rightshift */
514 2, /* size (0 = byte, 1 = short, 2 = long) */
515 16, /* bitsize */
516 FALSE, /* pc_relative */
517 0, /* bitpos */
518 complain_overflow_dont, /* complain_on_overflow */
519 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 520 AARCH64_R_STR (MOVW_UABS_G1_NC), /* name */
a06ea964
NC		 521 FALSE, /* partial_inplace */
522 0xffff, /* src_mask */
523 0xffff, /* dst_mask */
524 FALSE), /* pcrel_offset */
525
526 /* MOVZ: ((S+A) >> 32) & 0xffff */
a6bb11b2 527 HOWTO64 (AARCH64_R (MOVW_UABS_G2), /* type */
a06ea964
NC		 528 32, /* rightshift */
529 2, /* size (0 = byte, 1 = short, 2 = long) */
530 16, /* bitsize */
531 FALSE, /* pc_relative */
532 0, /* bitpos */
533 complain_overflow_unsigned, /* complain_on_overflow */
534 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 535 AARCH64_R_STR (MOVW_UABS_G2), /* name */
a06ea964
NC		 536 FALSE, /* partial_inplace */
537 0xffff, /* src_mask */
538 0xffff, /* dst_mask */
539 FALSE), /* pcrel_offset */
540
541 /* MOVK: ((S+A) >> 32) & 0xffff [no overflow check] */
a6bb11b2 542 HOWTO64 (AARCH64_R (MOVW_UABS_G2_NC), /* type */
a06ea964
NC		 543 32, /* rightshift */
544 2, /* size (0 = byte, 1 = short, 2 = long) */
545 16, /* bitsize */
546 FALSE, /* pc_relative */
547 0, /* bitpos */
548 complain_overflow_dont, /* complain_on_overflow */
549 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 550 AARCH64_R_STR (MOVW_UABS_G2_NC), /* name */
a06ea964
NC		 551 FALSE, /* partial_inplace */
552 0xffff, /* src_mask */
553 0xffff, /* dst_mask */
554 FALSE), /* pcrel_offset */
555
556 /* MOVZ: ((S+A) >> 48) & 0xffff */
a6bb11b2 557 HOWTO64 (AARCH64_R (MOVW_UABS_G3), /* type */
a06ea964
NC		 558 48, /* rightshift */
559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 16, /* bitsize */
561 FALSE, /* pc_relative */
562 0, /* bitpos */
563 complain_overflow_unsigned, /* complain_on_overflow */
564 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 565 AARCH64_R_STR (MOVW_UABS_G3), /* name */
a06ea964
NC		 566 FALSE, /* partial_inplace */
567 0xffff, /* src_mask */
568 0xffff, /* dst_mask */
569 FALSE), /* pcrel_offset */
570
571 /* Group relocations to create high part of a 16, 32, 48 or 64 bit
572 signed data or abs address inline. Will change instruction
573 to MOVN or MOVZ depending on sign of calculated value. */
574
575 /* MOV[ZN]: ((S+A) >> 0) & 0xffff */
a6bb11b2 576 HOWTO (AARCH64_R (MOVW_SABS_G0), /* type */
a06ea964
NC		 577 0, /* rightshift */
578 2, /* size (0 = byte, 1 = short, 2 = long) */
c5e3a364 579 17, /* bitsize */
a06ea964
NC		 580 FALSE, /* pc_relative */
581 0, /* bitpos */
582 complain_overflow_signed, /* complain_on_overflow */
583 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 584 AARCH64_R_STR (MOVW_SABS_G0), /* name */
a06ea964
NC		 585 FALSE, /* partial_inplace */
586 0xffff, /* src_mask */
587 0xffff, /* dst_mask */
588 FALSE), /* pcrel_offset */
589
590 /* MOV[ZN]: ((S+A) >> 16) & 0xffff */
a6bb11b2 591 HOWTO64 (AARCH64_R (MOVW_SABS_G1), /* type */
a06ea964
NC		 592 16, /* rightshift */
593 2, /* size (0 = byte, 1 = short, 2 = long) */
c5e3a364 594 17, /* bitsize */
a06ea964
NC		 595 FALSE, /* pc_relative */
596 0, /* bitpos */
597 complain_overflow_signed, /* complain_on_overflow */
598 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 599 AARCH64_R_STR (MOVW_SABS_G1), /* name */
a06ea964
NC		 600 FALSE, /* partial_inplace */
601 0xffff, /* src_mask */
602 0xffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
604
605 /* MOV[ZN]: ((S+A) >> 32) & 0xffff */
a6bb11b2 606 HOWTO64 (AARCH64_R (MOVW_SABS_G2), /* type */
a06ea964
NC		 607 32, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
c5e3a364 609 17, /* bitsize */
a06ea964
NC		 610 FALSE, /* pc_relative */
611 0, /* bitpos */
612 complain_overflow_signed, /* complain_on_overflow */
613 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 614 AARCH64_R_STR (MOVW_SABS_G2), /* name */
a06ea964
NC		 615 FALSE, /* partial_inplace */
616 0xffff, /* src_mask */
617 0xffff, /* dst_mask */
618 FALSE), /* pcrel_offset */
619
620/* Relocations to generate 19, 21 and 33 bit PC-relative load/store
621 addresses: PG(x) is (x & ~0xfff). */
622
623 /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */
a6bb11b2 624 HOWTO (AARCH64_R (LD_PREL_LO19), /* type */
a06ea964
NC		 625 2, /* rightshift */
626 2, /* size (0 = byte, 1 = short, 2 = long) */
627 19, /* bitsize */
628 TRUE, /* pc_relative */
629 0, /* bitpos */
630 complain_overflow_signed, /* complain_on_overflow */
631 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 632 AARCH64_R_STR (LD_PREL_LO19), /* name */
a06ea964
NC		 633 FALSE, /* partial_inplace */
634 0x7ffff, /* src_mask */
635 0x7ffff, /* dst_mask */
636 TRUE), /* pcrel_offset */
637
638 /* ADR: (S+A-P) & 0x1fffff */
a6bb11b2 639 HOWTO (AARCH64_R (ADR_PREL_LO21), /* type */
a06ea964
NC		 640 0, /* rightshift */
641 2, /* size (0 = byte, 1 = short, 2 = long) */
642 21, /* bitsize */
643 TRUE, /* pc_relative */
644 0, /* bitpos */
645 complain_overflow_signed, /* complain_on_overflow */
646 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 647 AARCH64_R_STR (ADR_PREL_LO21), /* name */
a06ea964
NC		 648 FALSE, /* partial_inplace */
649 0x1fffff, /* src_mask */
650 0x1fffff, /* dst_mask */
651 TRUE), /* pcrel_offset */
652
653 /* ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */
a6bb11b2 654 HOWTO (AARCH64_R (ADR_PREL_PG_HI21), /* type */
a06ea964
NC		 655 12, /* rightshift */
656 2, /* size (0 = byte, 1 = short, 2 = long) */
657 21, /* bitsize */
658 TRUE, /* pc_relative */
659 0, /* bitpos */
660 complain_overflow_signed, /* complain_on_overflow */
661 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 662 AARCH64_R_STR (ADR_PREL_PG_HI21), /* name */
a06ea964
NC		 663 FALSE, /* partial_inplace */
664 0x1fffff, /* src_mask */
665 0x1fffff, /* dst_mask */
666 TRUE), /* pcrel_offset */
667
668 /* ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff [no overflow check] */
a6bb11b2 669 HOWTO64 (AARCH64_R (ADR_PREL_PG_HI21_NC), /* type */
a06ea964
NC		 670 12, /* rightshift */
671 2, /* size (0 = byte, 1 = short, 2 = long) */
672 21, /* bitsize */
673 TRUE, /* pc_relative */
674 0, /* bitpos */
675 complain_overflow_dont, /* complain_on_overflow */
676 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 677 AARCH64_R_STR (ADR_PREL_PG_HI21_NC), /* name */
a06ea964
NC		 678 FALSE, /* partial_inplace */
679 0x1fffff, /* src_mask */
680 0x1fffff, /* dst_mask */
681 TRUE), /* pcrel_offset */
682
683 /* ADD: (S+A) & 0xfff [no overflow check] */
a6bb11b2 684 HOWTO (AARCH64_R (ADD_ABS_LO12_NC), /* type */
a06ea964
NC		 685 0, /* rightshift */
686 2, /* size (0 = byte, 1 = short, 2 = long) */
687 12, /* bitsize */
688 FALSE, /* pc_relative */
689 10, /* bitpos */
690 complain_overflow_dont, /* complain_on_overflow */
691 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 692 AARCH64_R_STR (ADD_ABS_LO12_NC), /* name */
a06ea964
NC		 693 FALSE, /* partial_inplace */
694 0x3ffc00, /* src_mask */
695 0x3ffc00, /* dst_mask */
696 FALSE), /* pcrel_offset */
697
698 /* LD/ST8: (S+A) & 0xfff */
a6bb11b2 699 HOWTO (AARCH64_R (LDST8_ABS_LO12_NC), /* type */
a06ea964
NC		 700 0, /* rightshift */
701 2, /* size (0 = byte, 1 = short, 2 = long) */
702 12, /* bitsize */
703 FALSE, /* pc_relative */
704 0, /* bitpos */
705 complain_overflow_dont, /* complain_on_overflow */
706 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 707 AARCH64_R_STR (LDST8_ABS_LO12_NC), /* name */
a06ea964
NC		 708 FALSE, /* partial_inplace */
709 0xfff, /* src_mask */
710 0xfff, /* dst_mask */
711 FALSE), /* pcrel_offset */
712
713 /* Relocations for control-flow instructions. */
714
715 /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff */
a6bb11b2 716 HOWTO (AARCH64_R (TSTBR14), /* type */
a06ea964
NC		 717 2, /* rightshift */
718 2, /* size (0 = byte, 1 = short, 2 = long) */
719 14, /* bitsize */
720 TRUE, /* pc_relative */
721 0, /* bitpos */
722 complain_overflow_signed, /* complain_on_overflow */
723 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 724 AARCH64_R_STR (TSTBR14), /* name */
a06ea964
NC		 725 FALSE, /* partial_inplace */
726 0x3fff, /* src_mask */
727 0x3fff, /* dst_mask */
728 TRUE), /* pcrel_offset */
729
730 /* B.cond: ((S+A-P) >> 2) & 0x7ffff */
a6bb11b2 731 HOWTO (AARCH64_R (CONDBR19), /* type */
a06ea964
NC		 732 2, /* rightshift */
733 2, /* size (0 = byte, 1 = short, 2 = long) */
734 19, /* bitsize */
735 TRUE, /* pc_relative */
736 0, /* bitpos */
737 complain_overflow_signed, /* complain_on_overflow */
738 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 739 AARCH64_R_STR (CONDBR19), /* name */
a06ea964
NC		 740 FALSE, /* partial_inplace */
741 0x7ffff, /* src_mask */
742 0x7ffff, /* dst_mask */
743 TRUE), /* pcrel_offset */
744
a06ea964 745 /* B: ((S+A-P) >> 2) & 0x3ffffff */
a6bb11b2 746 HOWTO (AARCH64_R (JUMP26), /* type */
a06ea964
NC		 747 2, /* rightshift */
748 2, /* size (0 = byte, 1 = short, 2 = long) */
749 26, /* bitsize */
750 TRUE, /* pc_relative */
751 0, /* bitpos */
752 complain_overflow_signed, /* complain_on_overflow */
753 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 754 AARCH64_R_STR (JUMP26), /* name */
a06ea964
NC		 755 FALSE, /* partial_inplace */
756 0x3ffffff, /* src_mask */
757 0x3ffffff, /* dst_mask */
758 TRUE), /* pcrel_offset */
759
760 /* BL: ((S+A-P) >> 2) & 0x3ffffff */
a6bb11b2 761 HOWTO (AARCH64_R (CALL26), /* type */
a06ea964
NC		 762 2, /* rightshift */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
764 26, /* bitsize */
765 TRUE, /* pc_relative */
766 0, /* bitpos */
767 complain_overflow_signed, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 769 AARCH64_R_STR (CALL26), /* name */
a06ea964
NC		 770 FALSE, /* partial_inplace */
771 0x3ffffff, /* src_mask */
772 0x3ffffff, /* dst_mask */
773 TRUE), /* pcrel_offset */
774
775 /* LD/ST16: (S+A) & 0xffe */
a6bb11b2 776 HOWTO (AARCH64_R (LDST16_ABS_LO12_NC), /* type */
a06ea964
NC		 777 1, /* rightshift */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
779 12, /* bitsize */
780 FALSE, /* pc_relative */
781 0, /* bitpos */
782 complain_overflow_dont, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 784 AARCH64_R_STR (LDST16_ABS_LO12_NC), /* name */
a06ea964
NC		 785 FALSE, /* partial_inplace */
786 0xffe, /* src_mask */
787 0xffe, /* dst_mask */
788 FALSE), /* pcrel_offset */
789
790 /* LD/ST32: (S+A) & 0xffc */
a6bb11b2 791 HOWTO (AARCH64_R (LDST32_ABS_LO12_NC), /* type */
a06ea964
NC		 792 2, /* rightshift */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
794 12, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 799 AARCH64_R_STR (LDST32_ABS_LO12_NC), /* name */
a06ea964
NC		 800 FALSE, /* partial_inplace */
801 0xffc, /* src_mask */
802 0xffc, /* dst_mask */
803 FALSE), /* pcrel_offset */
804
805 /* LD/ST64: (S+A) & 0xff8 */
a6bb11b2 806 HOWTO (AARCH64_R (LDST64_ABS_LO12_NC), /* type */
a06ea964
NC		 807 3, /* rightshift */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
809 12, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 814 AARCH64_R_STR (LDST64_ABS_LO12_NC), /* name */
a06ea964
NC		 815 FALSE, /* partial_inplace */
816 0xff8, /* src_mask */
817 0xff8, /* dst_mask */
818 FALSE), /* pcrel_offset */
819
a06ea964 820 /* LD/ST128: (S+A) & 0xff0 */
a6bb11b2 821 HOWTO (AARCH64_R (LDST128_ABS_LO12_NC), /* type */
a06ea964
NC		 822 4, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 12, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 829 AARCH64_R_STR (LDST128_ABS_LO12_NC), /* name */
a06ea964
NC		 830 FALSE, /* partial_inplace */
831 0xff0, /* src_mask */
832 0xff0, /* dst_mask */
833 FALSE), /* pcrel_offset */
834
f41aef5f
RE		 835 /* Set a load-literal immediate field to bits
836 0x1FFFFC of G(S)-P */
a6bb11b2 837 HOWTO (AARCH64_R (GOT_LD_PREL19), /* type */
f41aef5f
RE		 838 2, /* rightshift */
839 2, /* size (0 = byte,1 = short,2 = long) */
840 19, /* bitsize */
841 TRUE, /* pc_relative */
842 0, /* bitpos */
843 complain_overflow_signed, /* complain_on_overflow */
844 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 845 AARCH64_R_STR (GOT_LD_PREL19), /* name */
f41aef5f
RE		 846 FALSE, /* partial_inplace */
847 0xffffe0, /* src_mask */
848 0xffffe0, /* dst_mask */
849 TRUE), /* pcrel_offset */
850
a06ea964
NC		 851 /* Get to the page for the GOT entry for the symbol
852 (G(S) - P) using an ADRP instruction. */
a6bb11b2 853 HOWTO (AARCH64_R (ADR_GOT_PAGE), /* type */
a06ea964
NC		 854 12, /* rightshift */
855 2, /* size (0 = byte, 1 = short, 2 = long) */
856 21, /* bitsize */
857 TRUE, /* pc_relative */
858 0, /* bitpos */
859 complain_overflow_dont, /* complain_on_overflow */
860 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 861 AARCH64_R_STR (ADR_GOT_PAGE), /* name */
a06ea964
NC		 862 FALSE, /* partial_inplace */
863 0x1fffff, /* src_mask */
864 0x1fffff, /* dst_mask */
865 TRUE), /* pcrel_offset */
866
a6bb11b2
YZ		 867 /* LD64: GOT offset G(S) & 0xff8 */
868 HOWTO64 (AARCH64_R (LD64_GOT_LO12_NC), /* type */
a06ea964
NC		 869 3, /* rightshift */
870 2, /* size (0 = byte, 1 = short, 2 = long) */
871 12, /* bitsize */
872 FALSE, /* pc_relative */
873 0, /* bitpos */
874 complain_overflow_dont, /* complain_on_overflow */
875 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 876 AARCH64_R_STR (LD64_GOT_LO12_NC), /* name */
a06ea964
NC		 877 FALSE, /* partial_inplace */
878 0xff8, /* src_mask */
879 0xff8, /* dst_mask */
a6bb11b2 880 FALSE), /* pcrel_offset */
a06ea964 881
a6bb11b2
YZ		 882 /* LD32: GOT offset G(S) & 0xffc */
883 HOWTO32 (AARCH64_R (LD32_GOT_LO12_NC), /* type */
884 2, /* rightshift */
885 2, /* size (0 = byte, 1 = short, 2 = long) */
886 12, /* bitsize */
887 FALSE, /* pc_relative */
888 0, /* bitpos */
889 complain_overflow_dont, /* complain_on_overflow */
890 bfd_elf_generic_reloc, /* special_function */
891 AARCH64_R_STR (LD32_GOT_LO12_NC), /* name */
892 FALSE, /* partial_inplace */
893 0xffc, /* src_mask */
894 0xffc, /* dst_mask */
895 FALSE), /* pcrel_offset */
a06ea964 896
ca632371
RL		 897 /* Lower 16 bits of GOT offset for the symbol. */
898 HOWTO64 (AARCH64_R (MOVW_GOTOFF_G0_NC), /* type */
899 0, /* rightshift */
900 2, /* size (0 = byte, 1 = short, 2 = long) */
901 16, /* bitsize */
902 FALSE, /* pc_relative */
903 0, /* bitpos */
904 complain_overflow_dont, /* complain_on_overflow */
905 bfd_elf_generic_reloc, /* special_function */
906 AARCH64_R_STR (MOVW_GOTOFF_G0_NC), /* name */
907 FALSE, /* partial_inplace */
908 0xffff, /* src_mask */
909 0xffff, /* dst_mask */
910 FALSE), /* pcrel_offset */
911
654248e7
RL		 912 /* Higher 16 bits of GOT offset for the symbol. */
913 HOWTO64 (AARCH64_R (MOVW_GOTOFF_G1), /* type */
914 16, /* rightshift */
915 2, /* size (0 = byte, 1 = short, 2 = long) */
916 16, /* bitsize */
917 FALSE, /* pc_relative */
918 0, /* bitpos */
919 complain_overflow_unsigned, /* complain_on_overflow */
920 bfd_elf_generic_reloc, /* special_function */
921 AARCH64_R_STR (MOVW_GOTOFF_G1), /* name */
922 FALSE, /* partial_inplace */
923 0xffff, /* src_mask */
924 0xffff, /* dst_mask */
925 FALSE), /* pcrel_offset */
926
87f5fbcc
RL		 927 /* LD64: GOT offset for the symbol. */
928 HOWTO64 (AARCH64_R (LD64_GOTOFF_LO15), /* type */
929 3, /* rightshift */
930 2, /* size (0 = byte, 1 = short, 2 = long) */
931 12, /* bitsize */
932 FALSE, /* pc_relative */
933 0, /* bitpos */
934 complain_overflow_unsigned, /* complain_on_overflow */
935 bfd_elf_generic_reloc, /* special_function */
936 AARCH64_R_STR (LD64_GOTOFF_LO15), /* name */
937 FALSE, /* partial_inplace */
938 0x7ff8, /* src_mask */
939 0x7ff8, /* dst_mask */
940 FALSE), /* pcrel_offset */
941
3d715ce4
JW		 942 /* LD32: GOT offset to the page address of GOT table.
943 (G(S) - PAGE (_GLOBAL_OFFSET_TABLE_)) & 0x5ffc. */
944 HOWTO32 (AARCH64_R (LD32_GOTPAGE_LO14), /* type */
945 2, /* rightshift */
946 2, /* size (0 = byte, 1 = short, 2 = long) */
947 12, /* bitsize */
948 FALSE, /* pc_relative */
949 0, /* bitpos */
950 complain_overflow_unsigned, /* complain_on_overflow */
951 bfd_elf_generic_reloc, /* special_function */
952 AARCH64_R_STR (LD32_GOTPAGE_LO14), /* name */
953 FALSE, /* partial_inplace */
954 0x5ffc, /* src_mask */
955 0x5ffc, /* dst_mask */
956 FALSE), /* pcrel_offset */
957
a921b5bd
JW		 958 /* LD64: GOT offset to the page address of GOT table.
959 (G(S) - PAGE (_GLOBAL_OFFSET_TABLE_)) & 0x7ff8. */
960 HOWTO64 (AARCH64_R (LD64_GOTPAGE_LO15), /* type */
961 3, /* rightshift */
962 2, /* size (0 = byte, 1 = short, 2 = long) */
963 12, /* bitsize */
964 FALSE, /* pc_relative */
965 0, /* bitpos */
966 complain_overflow_unsigned, /* complain_on_overflow */
967 bfd_elf_generic_reloc, /* special_function */
968 AARCH64_R_STR (LD64_GOTPAGE_LO15), /* name */
969 FALSE, /* partial_inplace */
970 0x7ff8, /* src_mask */
971 0x7ff8, /* dst_mask */
972 FALSE), /* pcrel_offset */
973
a06ea964
NC		 974 /* Get to the page for the GOT entry for the symbol
975 (G(S) - P) using an ADRP instruction. */
a6bb11b2 976 HOWTO (AARCH64_R (TLSGD_ADR_PAGE21), /* type */
a06ea964
NC		 977 12, /* rightshift */
978 2, /* size (0 = byte, 1 = short, 2 = long) */
979 21, /* bitsize */
980 TRUE, /* pc_relative */
981 0, /* bitpos */
982 complain_overflow_dont, /* complain_on_overflow */
983 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 984 AARCH64_R_STR (TLSGD_ADR_PAGE21), /* name */
a06ea964
NC		 985 FALSE, /* partial_inplace */
986 0x1fffff, /* src_mask */
987 0x1fffff, /* dst_mask */
988 TRUE), /* pcrel_offset */
989
3c12b054
MS		 990 HOWTO (AARCH64_R (TLSGD_ADR_PREL21), /* type */
991 0, /* rightshift */
992 2, /* size (0 = byte, 1 = short, 2 = long) */
993 21, /* bitsize */
994 TRUE, /* pc_relative */
995 0, /* bitpos */
996 complain_overflow_dont, /* complain_on_overflow */
997 bfd_elf_generic_reloc, /* special_function */
998 AARCH64_R_STR (TLSGD_ADR_PREL21), /* name */
999 FALSE, /* partial_inplace */
1000 0x1fffff, /* src_mask */
1001 0x1fffff, /* dst_mask */
1002 TRUE), /* pcrel_offset */
1003
a06ea964 1004 /* ADD: GOT offset G(S) & 0xff8 [no overflow check] */
a6bb11b2 1005 HOWTO (AARCH64_R (TLSGD_ADD_LO12_NC), /* type */
a06ea964
NC		 1006 0, /* rightshift */
1007 2, /* size (0 = byte, 1 = short, 2 = long) */
1008 12, /* bitsize */
1009 FALSE, /* pc_relative */
1010 0, /* bitpos */
1011 complain_overflow_dont, /* complain_on_overflow */
1012 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1013 AARCH64_R_STR (TLSGD_ADD_LO12_NC), /* name */
a06ea964
NC		 1014 FALSE, /* partial_inplace */
1015 0xfff, /* src_mask */
1016 0xfff, /* dst_mask */
1017 FALSE), /* pcrel_offset */
1018
3e8286c0
RL		 1019 /* Lower 16 bits of GOT offset to tls_index. */
1020 HOWTO64 (AARCH64_R (TLSGD_MOVW_G0_NC), /* type */
1021 0, /* rightshift */
1022 2, /* size (0 = byte, 1 = short, 2 = long) */
1023 16, /* bitsize */
1024 FALSE, /* pc_relative */
1025 0, /* bitpos */
1026 complain_overflow_dont, /* complain_on_overflow */
1027 bfd_elf_generic_reloc, /* special_function */
1028 AARCH64_R_STR (TLSGD_MOVW_G0_NC), /* name */
1029 FALSE, /* partial_inplace */
1030 0xffff, /* src_mask */
1031 0xffff, /* dst_mask */
1032 FALSE), /* pcrel_offset */
1033
1aa66fb1
RL		 1034 /* Higher 16 bits of GOT offset to tls_index. */
1035 HOWTO64 (AARCH64_R (TLSGD_MOVW_G1), /* type */
1036 16, /* rightshift */
1037 2, /* size (0 = byte, 1 = short, 2 = long) */
1038 16, /* bitsize */
1039 FALSE, /* pc_relative */
1040 0, /* bitpos */
1041 complain_overflow_unsigned, /* complain_on_overflow */
1042 bfd_elf_generic_reloc, /* special_function */
1043 AARCH64_R_STR (TLSGD_MOVW_G1), /* name */
1044 FALSE, /* partial_inplace */
1045 0xffff, /* src_mask */
1046 0xffff, /* dst_mask */
1047 FALSE), /* pcrel_offset */
1048
a6bb11b2 1049 HOWTO (AARCH64_R (TLSIE_ADR_GOTTPREL_PAGE21), /* type */
a06ea964
NC		 1050 12, /* rightshift */
1051 2, /* size (0 = byte, 1 = short, 2 = long) */
1052 21, /* bitsize */
1053 FALSE, /* pc_relative */
1054 0, /* bitpos */
1055 complain_overflow_dont, /* complain_on_overflow */
1056 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1057 AARCH64_R_STR (TLSIE_ADR_GOTTPREL_PAGE21), /* name */
a06ea964
NC		 1058 FALSE, /* partial_inplace */
1059 0x1fffff, /* src_mask */
1060 0x1fffff, /* dst_mask */
1061 FALSE), /* pcrel_offset */
1062
a6bb11b2 1063 HOWTO64 (AARCH64_R (TLSIE_LD64_GOTTPREL_LO12_NC), /* type */
a06ea964
NC		 1064 3, /* rightshift */
1065 2, /* size (0 = byte, 1 = short, 2 = long) */
1066 12, /* bitsize */
1067 FALSE, /* pc_relative */
1068 0, /* bitpos */
1069 complain_overflow_dont, /* complain_on_overflow */
1070 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1071 AARCH64_R_STR (TLSIE_LD64_GOTTPREL_LO12_NC), /* name */
a06ea964
NC		 1072 FALSE, /* partial_inplace */
1073 0xff8, /* src_mask */
1074 0xff8, /* dst_mask */
1075 FALSE), /* pcrel_offset */
1076
a6bb11b2
YZ		 1077 HOWTO32 (AARCH64_R (TLSIE_LD32_GOTTPREL_LO12_NC), /* type */
1078 2, /* rightshift */
1079 2, /* size (0 = byte, 1 = short, 2 = long) */
1080 12, /* bitsize */
1081 FALSE, /* pc_relative */
1082 0, /* bitpos */
1083 complain_overflow_dont, /* complain_on_overflow */
1084 bfd_elf_generic_reloc, /* special_function */
1085 AARCH64_R_STR (TLSIE_LD32_GOTTPREL_LO12_NC), /* name */
1086 FALSE, /* partial_inplace */
1087 0xffc, /* src_mask */
1088 0xffc, /* dst_mask */
1089 FALSE), /* pcrel_offset */
1090
1091 HOWTO (AARCH64_R (TLSIE_LD_GOTTPREL_PREL19), /* type */
bb3f9ed8 1092 2, /* rightshift */
a06ea964 1093 2, /* size (0 = byte, 1 = short, 2 = long) */
043bf05a 1094 19, /* bitsize */
a06ea964
NC		 1095 FALSE, /* pc_relative */
1096 0, /* bitpos */
1097 complain_overflow_dont, /* complain_on_overflow */
1098 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1099 AARCH64_R_STR (TLSIE_LD_GOTTPREL_PREL19), /* name */
a06ea964
NC		 1100 FALSE, /* partial_inplace */
1101 0x1ffffc, /* src_mask */
1102 0x1ffffc, /* dst_mask */
1103 FALSE), /* pcrel_offset */
1104
3b957e5b
RL		 1105 HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G0_NC), /* type */
1106 0, /* rightshift */
1107 2, /* size (0 = byte, 1 = short, 2 = long) */
1108 16, /* bitsize */
1109 FALSE, /* pc_relative */
1110 0, /* bitpos */
1111 complain_overflow_dont, /* complain_on_overflow */
1112 bfd_elf_generic_reloc, /* special_function */
1113 AARCH64_R_STR (TLSIE_MOVW_GOTTPREL_G0_NC), /* name */
1114 FALSE, /* partial_inplace */
1115 0xffff, /* src_mask */
1116 0xffff, /* dst_mask */
1117 FALSE), /* pcrel_offset */
1118
1119 HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G1), /* type */
1120 16, /* rightshift */
1121 2, /* size (0 = byte, 1 = short, 2 = long) */
1122 16, /* bitsize */
1123 FALSE, /* pc_relative */
1124 0, /* bitpos */
1125 complain_overflow_unsigned, /* complain_on_overflow */
1126 bfd_elf_generic_reloc, /* special_function */
1127 AARCH64_R_STR (TLSIE_MOVW_GOTTPREL_G1), /* name */
1128 FALSE, /* partial_inplace */
1129 0xffff, /* src_mask */
1130 0xffff, /* dst_mask */
1131 FALSE), /* pcrel_offset */
1132
49df5539
JW		 1133 /* ADD: bit[23:12] of byte offset to module TLS base address. */
1134 HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_HI12), /* type */
1135 12, /* rightshift */
1136 2, /* size (0 = byte, 1 = short, 2 = long) */
1137 12, /* bitsize */
1138 FALSE, /* pc_relative */
1139 0, /* bitpos */
1140 complain_overflow_unsigned, /* complain_on_overflow */
1141 bfd_elf_generic_reloc, /* special_function */
1142 AARCH64_R_STR (TLSLD_ADD_DTPREL_HI12), /* name */
1143 FALSE, /* partial_inplace */
1144 0xfff, /* src_mask */
1145 0xfff, /* dst_mask */
1146 FALSE), /* pcrel_offset */
1147
70151fb5
JW		 1148 /* Unsigned 12 bit byte offset to module TLS base address. */
1149 HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_LO12), /* type */
1150 0, /* rightshift */
1151 2, /* size (0 = byte, 1 = short, 2 = long) */
1152 12, /* bitsize */
1153 FALSE, /* pc_relative */
1154 0, /* bitpos */
1155 complain_overflow_unsigned, /* complain_on_overflow */
1156 bfd_elf_generic_reloc, /* special_function */
1157 AARCH64_R_STR (TLSLD_ADD_DTPREL_LO12), /* name */
1158 FALSE, /* partial_inplace */
1159 0xfff, /* src_mask */
1160 0xfff, /* dst_mask */
1161 FALSE), /* pcrel_offset */
13289c10
JW		 1162
1163 /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12. */
1164 HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_LO12_NC), /* type */
1165 0, /* rightshift */
1166 2, /* size (0 = byte, 1 = short, 2 = long) */
1167 12, /* bitsize */
1168 FALSE, /* pc_relative */
1169 0, /* bitpos */
1170 complain_overflow_dont, /* complain_on_overflow */
1171 bfd_elf_generic_reloc, /* special_function */
1172 AARCH64_R_STR (TLSLD_ADD_DTPREL_LO12_NC), /* name */
1173 FALSE, /* partial_inplace */
1174 0xfff, /* src_mask */
1175 0xfff, /* dst_mask */
1176 FALSE), /* pcrel_offset */
70151fb5 1177
a12fad50
JW		 1178 /* ADD: GOT offset G(S) & 0xff8 [no overflow check] */
1179 HOWTO (AARCH64_R (TLSLD_ADD_LO12_NC), /* type */
1180 0, /* rightshift */
1181 2, /* size (0 = byte, 1 = short, 2 = long) */
1182 12, /* bitsize */
1183 FALSE, /* pc_relative */
1184 0, /* bitpos */
1185 complain_overflow_dont, /* complain_on_overflow */
1186 bfd_elf_generic_reloc, /* special_function */
1187 AARCH64_R_STR (TLSLD_ADD_LO12_NC), /* name */
1188 FALSE, /* partial_inplace */
1189 0xfff, /* src_mask */
1190 0xfff, /* dst_mask */
1191 FALSE), /* pcrel_offset */
1192
1107e076
JW		 1193 /* Get to the page for the GOT entry for the symbol
1194 (G(S) - P) using an ADRP instruction. */
1195 HOWTO (AARCH64_R (TLSLD_ADR_PAGE21), /* type */
1196 12, /* rightshift */
1197 2, /* size (0 = byte, 1 = short, 2 = long) */
1198 21, /* bitsize */
1199 TRUE, /* pc_relative */
1200 0, /* bitpos */
1201 complain_overflow_signed, /* complain_on_overflow */
1202 bfd_elf_generic_reloc, /* special_function */
1203 AARCH64_R_STR (TLSLD_ADR_PAGE21), /* name */
1204 FALSE, /* partial_inplace */
1205 0x1fffff, /* src_mask */
1206 0x1fffff, /* dst_mask */
1207 TRUE), /* pcrel_offset */
1208
6c37fedc
JW		 1209 HOWTO (AARCH64_R (TLSLD_ADR_PREL21), /* type */
1210 0, /* rightshift */
1211 2, /* size (0 = byte, 1 = short, 2 = long) */
1212 21, /* bitsize */
1213 TRUE, /* pc_relative */
1214 0, /* bitpos */
1215 complain_overflow_signed, /* complain_on_overflow */
1216 bfd_elf_generic_reloc, /* special_function */
1217 AARCH64_R_STR (TLSLD_ADR_PREL21), /* name */
1218 FALSE, /* partial_inplace */
1219 0x1fffff, /* src_mask */
1220 0x1fffff, /* dst_mask */
1221 TRUE), /* pcrel_offset */
1222
4c562523
JW		 1223 /* LD/ST16: bit[11:1] of byte offset to module TLS base address. */
1224 HOWTO64 (AARCH64_R (TLSLD_LDST16_DTPREL_LO12), /* type */
1225 1, /* rightshift */
1226 2, /* size (0 = byte, 1 = short, 2 = long) */
1227 11, /* bitsize */
1228 FALSE, /* pc_relative */
1229 10, /* bitpos */
1230 complain_overflow_unsigned, /* complain_on_overflow */
1231 bfd_elf_generic_reloc, /* special_function */
1232 AARCH64_R_STR (TLSLD_LDST16_DTPREL_LO12), /* name */
1233 FALSE, /* partial_inplace */
1234 0x1ffc00, /* src_mask */
1235 0x1ffc00, /* dst_mask */
1236 FALSE), /* pcrel_offset */
1237
1238 /* Same as BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12, but no overflow check. */
1239 HOWTO64 (AARCH64_R (TLSLD_LDST16_DTPREL_LO12_NC), /* type */
1240 1, /* rightshift */
1241 2, /* size (0 = byte, 1 = short, 2 = long) */
1242 11, /* bitsize */
1243 FALSE, /* pc_relative */
1244 10, /* bitpos */
1245 complain_overflow_dont, /* complain_on_overflow */
1246 bfd_elf_generic_reloc, /* special_function */
1247 AARCH64_R_STR (TLSLD_LDST16_DTPREL_LO12_NC), /* name */
1248 FALSE, /* partial_inplace */
1249 0x1ffc00, /* src_mask */
1250 0x1ffc00, /* dst_mask */
1251 FALSE), /* pcrel_offset */
1252
1253 /* LD/ST32: bit[11:2] of byte offset to module TLS base address. */
1254 HOWTO64 (AARCH64_R (TLSLD_LDST32_DTPREL_LO12), /* type */
1255 2, /* rightshift */
1256 2, /* size (0 = byte, 1 = short, 2 = long) */
1257 10, /* bitsize */
1258 FALSE, /* pc_relative */
1259 10, /* bitpos */
1260 complain_overflow_unsigned, /* complain_on_overflow */
1261 bfd_elf_generic_reloc, /* special_function */
1262 AARCH64_R_STR (TLSLD_LDST32_DTPREL_LO12), /* name */
1263 FALSE, /* partial_inplace */
1264 0x3ffc00, /* src_mask */
1265 0x3ffc00, /* dst_mask */
1266 FALSE), /* pcrel_offset */
1267
1268 /* Same as BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12, but no overflow check. */
1269 HOWTO64 (AARCH64_R (TLSLD_LDST32_DTPREL_LO12_NC), /* type */
1270 2, /* rightshift */
1271 2, /* size (0 = byte, 1 = short, 2 = long) */
1272 10, /* bitsize */
1273 FALSE, /* pc_relative */
1274 10, /* bitpos */
1275 complain_overflow_dont, /* complain_on_overflow */
1276 bfd_elf_generic_reloc, /* special_function */
1277 AARCH64_R_STR (TLSLD_LDST32_DTPREL_LO12_NC), /* name */
1278 FALSE, /* partial_inplace */
1279 0xffc00, /* src_mask */
1280 0xffc00, /* dst_mask */
1281 FALSE), /* pcrel_offset */
1282
1283 /* LD/ST64: bit[11:3] of byte offset to module TLS base address. */
1284 HOWTO64 (AARCH64_R (TLSLD_LDST64_DTPREL_LO12), /* type */
1285 3, /* rightshift */
1286 2, /* size (0 = byte, 1 = short, 2 = long) */
1287 9, /* bitsize */
1288 FALSE, /* pc_relative */
1289 10, /* bitpos */
1290 complain_overflow_unsigned, /* complain_on_overflow */
1291 bfd_elf_generic_reloc, /* special_function */
1292 AARCH64_R_STR (TLSLD_LDST64_DTPREL_LO12), /* name */
1293 FALSE, /* partial_inplace */
1294 0x3ffc00, /* src_mask */
1295 0x3ffc00, /* dst_mask */
1296 FALSE), /* pcrel_offset */
1297
1298 /* Same as BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12, but no overflow check. */
1299 HOWTO64 (AARCH64_R (TLSLD_LDST64_DTPREL_LO12_NC), /* type */
1300 3, /* rightshift */
1301 2, /* size (0 = byte, 1 = short, 2 = long) */
1302 9, /* bitsize */
1303 FALSE, /* pc_relative */
1304 10, /* bitpos */
1305 complain_overflow_dont, /* complain_on_overflow */
1306 bfd_elf_generic_reloc, /* special_function */
1307 AARCH64_R_STR (TLSLD_LDST64_DTPREL_LO12_NC), /* name */
1308 FALSE, /* partial_inplace */
1309 0x7fc00, /* src_mask */
1310 0x7fc00, /* dst_mask */
1311 FALSE), /* pcrel_offset */
1312
1313 /* LD/ST8: bit[11:0] of byte offset to module TLS base address. */
1314 HOWTO64 (AARCH64_R (TLSLD_LDST8_DTPREL_LO12), /* type */
1315 0, /* rightshift */
1316 2, /* size (0 = byte, 1 = short, 2 = long) */
1317 12, /* bitsize */
1318 FALSE, /* pc_relative */
1319 10, /* bitpos */
1320 complain_overflow_unsigned, /* complain_on_overflow */
1321 bfd_elf_generic_reloc, /* special_function */
1322 AARCH64_R_STR (TLSLD_LDST8_DTPREL_LO12), /* name */
1323 FALSE, /* partial_inplace */
1324 0x3ffc00, /* src_mask */
1325 0x3ffc00, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1327
1328 /* Same as BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12, but no overflow check. */
1329 HOWTO64 (AARCH64_R (TLSLD_LDST8_DTPREL_LO12_NC), /* type */
1330 0, /* rightshift */
1331 2, /* size (0 = byte, 1 = short, 2 = long) */
1332 12, /* bitsize */
1333 FALSE, /* pc_relative */
1334 10, /* bitpos */
1335 complain_overflow_dont, /* complain_on_overflow */
1336 bfd_elf_generic_reloc, /* special_function */
1337 AARCH64_R_STR (TLSLD_LDST8_DTPREL_LO12_NC), /* name */
1338 FALSE, /* partial_inplace */
1339 0x3ffc00, /* src_mask */
1340 0x3ffc00, /* dst_mask */
1341 FALSE), /* pcrel_offset */
1342
49df5539
JW		 1343 /* MOVZ: bit[15:0] of byte offset to module TLS base address. */
1344 HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G0), /* type */
1345 0, /* rightshift */
1346 2, /* size (0 = byte, 1 = short, 2 = long) */
1347 16, /* bitsize */
1348 FALSE, /* pc_relative */
1349 0, /* bitpos */
1350 complain_overflow_unsigned, /* complain_on_overflow */
1351 bfd_elf_generic_reloc, /* special_function */
1352 AARCH64_R_STR (TLSLD_MOVW_DTPREL_G0), /* name */
1353 FALSE, /* partial_inplace */
1354 0xffff, /* src_mask */
1355 0xffff, /* dst_mask */
1356 FALSE), /* pcrel_offset */
1357
1358 /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0. */
1359 HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G0_NC), /* type */
1360 0, /* rightshift */
1361 2, /* size (0 = byte, 1 = short, 2 = long) */
1362 16, /* bitsize */
1363 FALSE, /* pc_relative */
1364 0, /* bitpos */
1365 complain_overflow_dont, /* complain_on_overflow */
1366 bfd_elf_generic_reloc, /* special_function */
1367 AARCH64_R_STR (TLSLD_MOVW_DTPREL_G0_NC), /* name */
1368 FALSE, /* partial_inplace */
1369 0xffff, /* src_mask */
1370 0xffff, /* dst_mask */
1371 FALSE), /* pcrel_offset */
1372
1373 /* MOVZ: bit[31:16] of byte offset to module TLS base address. */
1374 HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G1), /* type */
1375 16, /* rightshift */
1376 2, /* size (0 = byte, 1 = short, 2 = long) */
1377 16, /* bitsize */
1378 FALSE, /* pc_relative */
1379 0, /* bitpos */
1380 complain_overflow_unsigned, /* complain_on_overflow */
1381 bfd_elf_generic_reloc, /* special_function */
1382 AARCH64_R_STR (TLSLD_MOVW_DTPREL_G1), /* name */
1383 FALSE, /* partial_inplace */
1384 0xffff, /* src_mask */
1385 0xffff, /* dst_mask */
1386 FALSE), /* pcrel_offset */
1387
1388 /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1. */
1389 HOWTO64 (AARCH64_R (TLSLD_MOVW_DTPREL_G1_NC), /* type */
1390 16, /* rightshift */
1391 2, /* size (0 = byte, 1 = short, 2 = long) */
1392 16, /* bitsize */
1393 FALSE, /* pc_relative */
1394 0, /* bitpos */
1395 complain_overflow_dont, /* complain_on_overflow */
1396 bfd_elf_generic_reloc, /* special_function */
1397 AARCH64_R_STR (TLSLD_MOVW_DTPREL_G1_NC), /* name */
1398 FALSE, /* partial_inplace */
1399 0xffff, /* src_mask */
1400 0xffff, /* dst_mask */
1401 FALSE), /* pcrel_offset */
1402
1403 /* MOVZ: bit[47:32] of byte offset to module TLS base address. */
1404 HOWTO64 (AARCH64_R (TLSLD_MOVW_DTPREL_G2), /* type */
1405 32, /* rightshift */
1406 2, /* size (0 = byte, 1 = short, 2 = long) */
1407 16, /* bitsize */
1408 FALSE, /* pc_relative */
1409 0, /* bitpos */
1410 complain_overflow_unsigned, /* complain_on_overflow */
1411 bfd_elf_generic_reloc, /* special_function */
1412 AARCH64_R_STR (TLSLD_MOVW_DTPREL_G2), /* name */
1413 FALSE, /* partial_inplace */
1414 0xffff, /* src_mask */
1415 0xffff, /* dst_mask */
1416 FALSE), /* pcrel_offset */
1417
a6bb11b2 1418 HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G2), /* type */
bb3f9ed8 1419 32, /* rightshift */
a06ea964 1420 2, /* size (0 = byte, 1 = short, 2 = long) */
07875fbc 1421 16, /* bitsize */
a06ea964
NC		 1422 FALSE, /* pc_relative */
1423 0, /* bitpos */
0172429c 1424 complain_overflow_unsigned, /* complain_on_overflow */
a06ea964 1425 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1426 AARCH64_R_STR (TLSLE_MOVW_TPREL_G2), /* name */
a06ea964
NC		 1427 FALSE, /* partial_inplace */
1428 0xffff, /* src_mask */
1429 0xffff, /* dst_mask */
1430 FALSE), /* pcrel_offset */
1431
a6bb11b2 1432 HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G1), /* type */
bb3f9ed8 1433 16, /* rightshift */
a06ea964 1434 2, /* size (0 = byte, 1 = short, 2 = long) */
07875fbc 1435 16, /* bitsize */
a06ea964
NC		 1436 FALSE, /* pc_relative */
1437 0, /* bitpos */
1438 complain_overflow_dont, /* complain_on_overflow */
1439 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1440 AARCH64_R_STR (TLSLE_MOVW_TPREL_G1), /* name */
a06ea964
NC		 1441 FALSE, /* partial_inplace */
1442 0xffff, /* src_mask */
1443 0xffff, /* dst_mask */
1444 FALSE), /* pcrel_offset */
1445
a6bb11b2 1446 HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G1_NC), /* type */
bb3f9ed8 1447 16, /* rightshift */
a06ea964 1448 2, /* size (0 = byte, 1 = short, 2 = long) */
07875fbc 1449 16, /* bitsize */
a06ea964
NC		 1450 FALSE, /* pc_relative */
1451 0, /* bitpos */
1452 complain_overflow_dont, /* complain_on_overflow */
1453 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1454 AARCH64_R_STR (TLSLE_MOVW_TPREL_G1_NC), /* name */
a06ea964
NC		 1455 FALSE, /* partial_inplace */
1456 0xffff, /* src_mask */
1457 0xffff, /* dst_mask */
1458 FALSE), /* pcrel_offset */
1459
a6bb11b2 1460 HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0), /* type */
a06ea964
NC		 1461 0, /* rightshift */
1462 2, /* size (0 = byte, 1 = short, 2 = long) */
07875fbc 1463 16, /* bitsize */
a06ea964
NC		 1464 FALSE, /* pc_relative */
1465 0, /* bitpos */
1466 complain_overflow_dont, /* complain_on_overflow */
1467 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1468 AARCH64_R_STR (TLSLE_MOVW_TPREL_G0), /* name */
a06ea964
NC		 1469 FALSE, /* partial_inplace */
1470 0xffff, /* src_mask */
1471 0xffff, /* dst_mask */
1472 FALSE), /* pcrel_offset */
1473
a6bb11b2 1474 HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0_NC), /* type */
a06ea964
NC		 1475 0, /* rightshift */
1476 2, /* size (0 = byte, 1 = short, 2 = long) */
07875fbc 1477 16, /* bitsize */
a06ea964
NC		 1478 FALSE, /* pc_relative */
1479 0, /* bitpos */
1480 complain_overflow_dont, /* complain_on_overflow */
1481 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1482 AARCH64_R_STR (TLSLE_MOVW_TPREL_G0_NC), /* name */
a06ea964
NC		 1483 FALSE, /* partial_inplace */
1484 0xffff, /* src_mask */
1485 0xffff, /* dst_mask */
1486 FALSE), /* pcrel_offset */
1487
a6bb11b2 1488 HOWTO (AARCH64_R (TLSLE_ADD_TPREL_HI12), /* type */
bb3f9ed8 1489 12, /* rightshift */
a06ea964
NC		 1490 2, /* size (0 = byte, 1 = short, 2 = long) */
1491 12, /* bitsize */
1492 FALSE, /* pc_relative */
1493 0, /* bitpos */
bab91cce 1494 complain_overflow_unsigned, /* complain_on_overflow */
a06ea964 1495 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1496 AARCH64_R_STR (TLSLE_ADD_TPREL_HI12), /* name */
a06ea964
NC		 1497 FALSE, /* partial_inplace */
1498 0xfff, /* src_mask */
1499 0xfff, /* dst_mask */
1500 FALSE), /* pcrel_offset */
1501
a6bb11b2 1502 HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12), /* type */
a06ea964
NC		 1503 0, /* rightshift */
1504 2, /* size (0 = byte, 1 = short, 2 = long) */
1505 12, /* bitsize */
1506 FALSE, /* pc_relative */
1507 0, /* bitpos */
36e6c140 1508 complain_overflow_unsigned, /* complain_on_overflow */
a06ea964 1509 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1510 AARCH64_R_STR (TLSLE_ADD_TPREL_LO12), /* name */
a06ea964
NC		 1511 FALSE, /* partial_inplace */
1512 0xfff, /* src_mask */
1513 0xfff, /* dst_mask */
1514 FALSE), /* pcrel_offset */
1515
a6bb11b2 1516 HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12_NC), /* type */
a06ea964
NC		 1517 0, /* rightshift */
1518 2, /* size (0 = byte, 1 = short, 2 = long) */
1519 12, /* bitsize */
1520 FALSE, /* pc_relative */
1521 0, /* bitpos */
1522 complain_overflow_dont, /* complain_on_overflow */
1523 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1524 AARCH64_R_STR (TLSLE_ADD_TPREL_LO12_NC), /* name */
a06ea964
NC		 1525 FALSE, /* partial_inplace */
1526 0xfff, /* src_mask */
1527 0xfff, /* dst_mask */
1528 FALSE), /* pcrel_offset */
a06ea964 1529
a6bb11b2 1530 HOWTO (AARCH64_R (TLSDESC_LD_PREL19), /* type */
bb3f9ed8 1531 2, /* rightshift */
a06ea964 1532 2, /* size (0 = byte, 1 = short, 2 = long) */
1ada945d 1533 19, /* bitsize */
a06ea964
NC		 1534 TRUE, /* pc_relative */
1535 0, /* bitpos */
1536 complain_overflow_dont, /* complain_on_overflow */
1537 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1538 AARCH64_R_STR (TLSDESC_LD_PREL19), /* name */
a06ea964 1539 FALSE, /* partial_inplace */
1ada945d
MS		 1540 0x0ffffe0, /* src_mask */
1541 0x0ffffe0, /* dst_mask */
a06ea964
NC		 1542 TRUE), /* pcrel_offset */
1543
a6bb11b2 1544 HOWTO (AARCH64_R (TLSDESC_ADR_PREL21), /* type */
a06ea964
NC		 1545 0, /* rightshift */
1546 2, /* size (0 = byte, 1 = short, 2 = long) */
1547 21, /* bitsize */
1548 TRUE, /* pc_relative */
1549 0, /* bitpos */
1550 complain_overflow_dont, /* complain_on_overflow */
1551 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1552 AARCH64_R_STR (TLSDESC_ADR_PREL21), /* name */
a06ea964
NC		 1553 FALSE, /* partial_inplace */
1554 0x1fffff, /* src_mask */
1555 0x1fffff, /* dst_mask */
1556 TRUE), /* pcrel_offset */
1557
1558 /* Get to the page for the GOT entry for the symbol
1559 (G(S) - P) using an ADRP instruction. */
a6bb11b2 1560 HOWTO (AARCH64_R (TLSDESC_ADR_PAGE21), /* type */
a06ea964
NC		 1561 12, /* rightshift */
1562 2, /* size (0 = byte, 1 = short, 2 = long) */
1563 21, /* bitsize */
1564 TRUE, /* pc_relative */
1565 0, /* bitpos */
1566 complain_overflow_dont, /* complain_on_overflow */
1567 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1568 AARCH64_R_STR (TLSDESC_ADR_PAGE21), /* name */
a06ea964
NC		 1569 FALSE, /* partial_inplace */
1570 0x1fffff, /* src_mask */
1571 0x1fffff, /* dst_mask */
1572 TRUE), /* pcrel_offset */
1573
a6bb11b2 1574 /* LD64: GOT offset G(S) & 0xff8. */
f955cccf 1575 HOWTO64 (AARCH64_R (TLSDESC_LD64_LO12), /* type */
a06ea964
NC		 1576 3, /* rightshift */
1577 2, /* size (0 = byte, 1 = short, 2 = long) */
1578 12, /* bitsize */
1579 FALSE, /* pc_relative */
1580 0, /* bitpos */
1581 complain_overflow_dont, /* complain_on_overflow */
1582 bfd_elf_generic_reloc, /* special_function */
f955cccf 1583 AARCH64_R_STR (TLSDESC_LD64_LO12), /* name */
a06ea964 1584 FALSE, /* partial_inplace */
a6bb11b2
YZ		 1585 0xff8, /* src_mask */
1586 0xff8, /* dst_mask */
1587 FALSE), /* pcrel_offset */
1588
1589 /* LD32: GOT offset G(S) & 0xffc. */
1590 HOWTO32 (AARCH64_R (TLSDESC_LD32_LO12_NC), /* type */
1591 2, /* rightshift */
1592 2, /* size (0 = byte, 1 = short, 2 = long) */
1593 12, /* bitsize */
1594 FALSE, /* pc_relative */
1595 0, /* bitpos */
1596 complain_overflow_dont, /* complain_on_overflow */
1597 bfd_elf_generic_reloc, /* special_function */
1598 AARCH64_R_STR (TLSDESC_LD32_LO12_NC), /* name */
1599 FALSE, /* partial_inplace */
1600 0xffc, /* src_mask */
1601 0xffc, /* dst_mask */
a06ea964
NC		 1602 FALSE), /* pcrel_offset */
1603
1604 /* ADD: GOT offset G(S) & 0xfff. */
f955cccf 1605 HOWTO (AARCH64_R (TLSDESC_ADD_LO12), /* type */
a06ea964
NC		 1606 0, /* rightshift */
1607 2, /* size (0 = byte, 1 = short, 2 = long) */
1608 12, /* bitsize */
1609 FALSE, /* pc_relative */
1610 0, /* bitpos */
f955cccf 1611 complain_overflow_dont,/* complain_on_overflow */
a06ea964 1612 bfd_elf_generic_reloc, /* special_function */
f955cccf 1613 AARCH64_R_STR (TLSDESC_ADD_LO12), /* name */
a06ea964
NC		 1614 FALSE, /* partial_inplace */
1615 0xfff, /* src_mask */
1616 0xfff, /* dst_mask */
1617 FALSE), /* pcrel_offset */
1618
a6bb11b2 1619 HOWTO64 (AARCH64_R (TLSDESC_OFF_G1), /* type */
bb3f9ed8 1620 16, /* rightshift */
a06ea964
NC		 1621 2, /* size (0 = byte, 1 = short, 2 = long) */
1622 12, /* bitsize */
1623 FALSE, /* pc_relative */
1624 0, /* bitpos */
43a357f9 1625 complain_overflow_unsigned, /* complain_on_overflow */
a06ea964 1626 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1627 AARCH64_R_STR (TLSDESC_OFF_G1), /* name */
a06ea964
NC		 1628 FALSE, /* partial_inplace */
1629 0xffff, /* src_mask */
1630 0xffff, /* dst_mask */
1631 FALSE), /* pcrel_offset */
1632
a6bb11b2 1633 HOWTO64 (AARCH64_R (TLSDESC_OFF_G0_NC), /* type */
a06ea964
NC		 1634 0, /* rightshift */
1635 2, /* size (0 = byte, 1 = short, 2 = long) */
1636 12, /* bitsize */
1637 FALSE, /* pc_relative */
1638 0, /* bitpos */
1639 complain_overflow_dont, /* complain_on_overflow */
1640 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1641 AARCH64_R_STR (TLSDESC_OFF_G0_NC), /* name */
a06ea964
NC		 1642 FALSE, /* partial_inplace */
1643 0xffff, /* src_mask */
1644 0xffff, /* dst_mask */
1645 FALSE), /* pcrel_offset */
1646
a6bb11b2 1647 HOWTO64 (AARCH64_R (TLSDESC_LDR), /* type */
a06ea964
NC		 1648 0, /* rightshift */
1649 2, /* size (0 = byte, 1 = short, 2 = long) */
1650 12, /* bitsize */
1651 FALSE, /* pc_relative */
1652 0, /* bitpos */
1653 complain_overflow_dont, /* complain_on_overflow */
1654 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1655 AARCH64_R_STR (TLSDESC_LDR), /* name */
a06ea964
NC		 1656 FALSE, /* partial_inplace */
1657 0x0, /* src_mask */
1658 0x0, /* dst_mask */
1659 FALSE), /* pcrel_offset */
1660
a6bb11b2 1661 HOWTO64 (AARCH64_R (TLSDESC_ADD), /* type */
a06ea964
NC		 1662 0, /* rightshift */
1663 2, /* size (0 = byte, 1 = short, 2 = long) */
1664 12, /* bitsize */
1665 FALSE, /* pc_relative */
1666 0, /* bitpos */
1667 complain_overflow_dont, /* complain_on_overflow */
1668 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1669 AARCH64_R_STR (TLSDESC_ADD), /* name */
a06ea964
NC		 1670 FALSE, /* partial_inplace */
1671 0x0, /* src_mask */
1672 0x0, /* dst_mask */
1673 FALSE), /* pcrel_offset */
1674
a6bb11b2 1675 HOWTO (AARCH64_R (TLSDESC_CALL), /* type */
a06ea964
NC		 1676 0, /* rightshift */
1677 2, /* size (0 = byte, 1 = short, 2 = long) */
7366006f 1678 0, /* bitsize */
a06ea964
NC		 1679 FALSE, /* pc_relative */
1680 0, /* bitpos */
1681 complain_overflow_dont, /* complain_on_overflow */
1682 bfd_elf_generic_reloc, /* special_function */
a6bb11b2 1683 AARCH64_R_STR (TLSDESC_CALL), /* name */
a06ea964
NC		 1684 FALSE, /* partial_inplace */
1685 0x0, /* src_mask */
1686 0x0, /* dst_mask */
1687 FALSE), /* pcrel_offset */
a6bb11b2
YZ		 1688
1689 HOWTO (AARCH64_R (COPY), /* type */
1690 0, /* rightshift */
1691 2, /* size (0 = byte, 1 = short, 2 = long) */
1692 64, /* bitsize */
1693 FALSE, /* pc_relative */
1694 0, /* bitpos */
1695 complain_overflow_bitfield, /* complain_on_overflow */
1696 bfd_elf_generic_reloc, /* special_function */
1697 AARCH64_R_STR (COPY), /* name */
1698 TRUE, /* partial_inplace */
1699 0xffffffff, /* src_mask */
1700 0xffffffff, /* dst_mask */
1701 FALSE), /* pcrel_offset */
1702
1703 HOWTO (AARCH64_R (GLOB_DAT), /* type */
1704 0, /* rightshift */
1705 2, /* size (0 = byte, 1 = short, 2 = long) */
1706 64, /* bitsize */
1707 FALSE, /* pc_relative */
1708 0, /* bitpos */
1709 complain_overflow_bitfield, /* complain_on_overflow */
1710 bfd_elf_generic_reloc, /* special_function */
1711 AARCH64_R_STR (GLOB_DAT), /* name */
1712 TRUE, /* partial_inplace */
1713 0xffffffff, /* src_mask */
1714 0xffffffff, /* dst_mask */
1715 FALSE), /* pcrel_offset */
1716
1717 HOWTO (AARCH64_R (JUMP_SLOT), /* type */
1718 0, /* rightshift */
1719 2, /* size (0 = byte, 1 = short, 2 = long) */
1720 64, /* bitsize */
1721 FALSE, /* pc_relative */
1722 0, /* bitpos */
1723 complain_overflow_bitfield, /* complain_on_overflow */
1724 bfd_elf_generic_reloc, /* special_function */
1725 AARCH64_R_STR (JUMP_SLOT), /* name */
1726 TRUE, /* partial_inplace */
1727 0xffffffff, /* src_mask */
1728 0xffffffff, /* dst_mask */
1729 FALSE), /* pcrel_offset */
1730
1731 HOWTO (AARCH64_R (RELATIVE), /* type */
1732 0, /* rightshift */
1733 2, /* size (0 = byte, 1 = short, 2 = long) */
1734 64, /* bitsize */
1735 FALSE, /* pc_relative */
1736 0, /* bitpos */
1737 complain_overflow_bitfield, /* complain_on_overflow */
1738 bfd_elf_generic_reloc, /* special_function */
1739 AARCH64_R_STR (RELATIVE), /* name */
1740 TRUE, /* partial_inplace */
1741 ALL_ONES, /* src_mask */
1742 ALL_ONES, /* dst_mask */
1743 FALSE), /* pcrel_offset */
1744
1745 HOWTO (AARCH64_R (TLS_DTPMOD), /* type */
1746 0, /* rightshift */
1747 2, /* size (0 = byte, 1 = short, 2 = long) */
1748 64, /* bitsize */
1749 FALSE, /* pc_relative */
1750 0, /* bitpos */
1751 complain_overflow_dont, /* complain_on_overflow */
1752 bfd_elf_generic_reloc, /* special_function */
da0781dc
YZ		 1753#if ARCH_SIZE == 64
1754 AARCH64_R_STR (TLS_DTPMOD64), /* name */
1755#else
a6bb11b2 1756 AARCH64_R_STR (TLS_DTPMOD), /* name */
da0781dc 1757#endif
a6bb11b2
YZ		 1758 FALSE, /* partial_inplace */
1759 0, /* src_mask */
1760 ALL_ONES, /* dst_mask */
1761 FALSE), /* pc_reloffset */
1762
1763 HOWTO (AARCH64_R (TLS_DTPREL), /* type */
1764 0, /* rightshift */
1765 2, /* size (0 = byte, 1 = short, 2 = long) */
1766 64, /* bitsize */
1767 FALSE, /* pc_relative */
1768 0, /* bitpos */
1769 complain_overflow_dont, /* complain_on_overflow */
1770 bfd_elf_generic_reloc, /* special_function */
da0781dc
YZ		 1771#if ARCH_SIZE == 64
1772 AARCH64_R_STR (TLS_DTPREL64), /* name */
1773#else
a6bb11b2 1774 AARCH64_R_STR (TLS_DTPREL), /* name */
da0781dc 1775#endif
a6bb11b2
YZ		 1776 FALSE, /* partial_inplace */
1777 0, /* src_mask */
1778 ALL_ONES, /* dst_mask */
1779 FALSE), /* pcrel_offset */
1780
1781 HOWTO (AARCH64_R (TLS_TPREL), /* type */
1782 0, /* rightshift */
1783 2, /* size (0 = byte, 1 = short, 2 = long) */
1784 64, /* bitsize */
1785 FALSE, /* pc_relative */
1786 0, /* bitpos */
1787 complain_overflow_dont, /* complain_on_overflow */
1788 bfd_elf_generic_reloc, /* special_function */
da0781dc
YZ		 1789#if ARCH_SIZE == 64
1790 AARCH64_R_STR (TLS_TPREL64), /* name */
1791#else
a6bb11b2 1792 AARCH64_R_STR (TLS_TPREL), /* name */
da0781dc 1793#endif
a6bb11b2
YZ		 1794 FALSE, /* partial_inplace */
1795 0, /* src_mask */
1796 ALL_ONES, /* dst_mask */
1797 FALSE), /* pcrel_offset */
1798
1799 HOWTO (AARCH64_R (TLSDESC), /* type */
1800 0, /* rightshift */
1801 2, /* size (0 = byte, 1 = short, 2 = long) */
1802 64, /* bitsize */
1803 FALSE, /* pc_relative */
1804 0, /* bitpos */
1805 complain_overflow_dont, /* complain_on_overflow */
1806 bfd_elf_generic_reloc, /* special_function */
1807 AARCH64_R_STR (TLSDESC), /* name */
1808 FALSE, /* partial_inplace */
1809 0, /* src_mask */
1810 ALL_ONES, /* dst_mask */
1811 FALSE), /* pcrel_offset */
1812
1813 HOWTO (AARCH64_R (IRELATIVE), /* type */
1814 0, /* rightshift */
1815 2, /* size (0 = byte, 1 = short, 2 = long) */
1816 64, /* bitsize */
1817 FALSE, /* pc_relative */
1818 0, /* bitpos */
1819 complain_overflow_bitfield, /* complain_on_overflow */
1820 bfd_elf_generic_reloc, /* special_function */
1821 AARCH64_R_STR (IRELATIVE), /* name */
1822 FALSE, /* partial_inplace */
1823 0, /* src_mask */
1824 ALL_ONES, /* dst_mask */
1825 FALSE), /* pcrel_offset */
1826
1827 EMPTY_HOWTO (0),
a06ea964
NC		 1828};
1829
a6bb11b2
YZ		 1830static reloc_howto_type elfNN_aarch64_howto_none =
1831 HOWTO (R_AARCH64_NONE, /* type */
1832 0, /* rightshift */
6346d5ca 1833 3, /* size (0 = byte, 1 = short, 2 = long) */
a6bb11b2
YZ		 1834 0, /* bitsize */
1835 FALSE, /* pc_relative */
1836 0, /* bitpos */
1837 complain_overflow_dont,/* complain_on_overflow */
1838 bfd_elf_generic_reloc, /* special_function */
1839 "R_AARCH64_NONE", /* name */
1840 FALSE, /* partial_inplace */
1841 0, /* src_mask */
1842 0, /* dst_mask */
1843 FALSE); /* pcrel_offset */
1844
1845/* Given HOWTO, return the bfd internal relocation enumerator. */
1846
1847static bfd_reloc_code_real_type
1848elfNN_aarch64_bfd_reloc_from_howto (reloc_howto_type *howto)
1849{
1850 const int size
1851 = (int) ARRAY_SIZE (elfNN_aarch64_howto_table);
1852 const ptrdiff_t offset
1853 = howto - elfNN_aarch64_howto_table;
1854
1855 if (offset > 0 && offset < size - 1)
1856 return BFD_RELOC_AARCH64_RELOC_START + offset;
1857
1858 if (howto == &elfNN_aarch64_howto_none)
1859 return BFD_RELOC_AARCH64_NONE;
1860
1861 return BFD_RELOC_AARCH64_RELOC_START;
1862}
1863
1864/* Given R_TYPE, return the bfd internal relocation enumerator. */
1865
1866static bfd_reloc_code_real_type
1867elfNN_aarch64_bfd_reloc_from_type (unsigned int r_type)
1868{
1869 static bfd_boolean initialized_p = FALSE;
1870 /* Indexed by R_TYPE, values are offsets in the howto_table. */
1871 static unsigned int offsets[R_AARCH64_end];
1872
535b785f 1873 if (!initialized_p)
a6bb11b2
YZ		 1874 {
1875 unsigned int i;
1876
1877 for (i = 1; i < ARRAY_SIZE (elfNN_aarch64_howto_table) - 1; ++i)
1878 if (elfNN_aarch64_howto_table[i].type != 0)
1879 offsets[elfNN_aarch64_howto_table[i].type] = i;
1880
1881 initialized_p = TRUE;
1882 }
1883
1884 if (r_type == R_AARCH64_NONE || r_type == R_AARCH64_NULL)
1885 return BFD_RELOC_AARCH64_NONE;
1886
5860e3f8
NC		 1887 /* PR 17512: file: b371e70a. */
1888 if (r_type >= R_AARCH64_end)
1889 {
1890 _bfd_error_handler (_("Invalid AArch64 reloc number: %d"), r_type);
1891 bfd_set_error (bfd_error_bad_value);
1892 return BFD_RELOC_AARCH64_NONE;
1893 }
1894
a6bb11b2
YZ		 1895 return BFD_RELOC_AARCH64_RELOC_START + offsets[r_type];
1896}
1897
1898struct elf_aarch64_reloc_map
1899{
1900 bfd_reloc_code_real_type from;
1901 bfd_reloc_code_real_type to;
1902};
1903
1904/* Map bfd generic reloc to AArch64-specific reloc. */
1905static const struct elf_aarch64_reloc_map elf_aarch64_reloc_map[] =
1906{
1907 {BFD_RELOC_NONE, BFD_RELOC_AARCH64_NONE},
1908
1909 /* Basic data relocations. */
1910 {BFD_RELOC_CTOR, BFD_RELOC_AARCH64_NN},
1911 {BFD_RELOC_64, BFD_RELOC_AARCH64_64},
1912 {BFD_RELOC_32, BFD_RELOC_AARCH64_32},
1913 {BFD_RELOC_16, BFD_RELOC_AARCH64_16},
1914 {BFD_RELOC_64_PCREL, BFD_RELOC_AARCH64_64_PCREL},
1915 {BFD_RELOC_32_PCREL, BFD_RELOC_AARCH64_32_PCREL},
1916 {BFD_RELOC_16_PCREL, BFD_RELOC_AARCH64_16_PCREL},
1917};
1918
1919/* Given the bfd internal relocation enumerator in CODE, return the
1920 corresponding howto entry. */
1921
1922static reloc_howto_type *
1923elfNN_aarch64_howto_from_bfd_reloc (bfd_reloc_code_real_type code)
1924{
1925 unsigned int i;
1926
1927 /* Convert bfd generic reloc to AArch64-specific reloc. */
1928 if (code < BFD_RELOC_AARCH64_RELOC_START
1929 || code > BFD_RELOC_AARCH64_RELOC_END)
1930 for (i = 0; i < ARRAY_SIZE (elf_aarch64_reloc_map); i++)
1931 if (elf_aarch64_reloc_map[i].from == code)
1932 {
1933 code = elf_aarch64_reloc_map[i].to;
1934 break;
1935 }
1936
1937 if (code > BFD_RELOC_AARCH64_RELOC_START
1938 && code < BFD_RELOC_AARCH64_RELOC_END)
1939 if (elfNN_aarch64_howto_table[code - BFD_RELOC_AARCH64_RELOC_START].type)
1940 return &elfNN_aarch64_howto_table[code - BFD_RELOC_AARCH64_RELOC_START];
1941
54757ed1
AP		 1942 if (code == BFD_RELOC_AARCH64_NONE)
1943 return &elfNN_aarch64_howto_none;
1944
a6bb11b2
YZ		 1945 return NULL;
1946}
1947
a06ea964 1948static reloc_howto_type *
cec5225b 1949elfNN_aarch64_howto_from_type (unsigned int r_type)
a06ea964 1950{
a6bb11b2
YZ		 1951 bfd_reloc_code_real_type val;
1952 reloc_howto_type *howto;
1953
cec5225b
YZ		 1954#if ARCH_SIZE == 32
1955 if (r_type > 256)
1956 {
1957 bfd_set_error (bfd_error_bad_value);
1958 return NULL;
1959 }
1960#endif
1961
a6bb11b2
YZ		 1962 if (r_type == R_AARCH64_NONE)
1963 return &elfNN_aarch64_howto_none;
a06ea964 1964
a6bb11b2
YZ		 1965 val = elfNN_aarch64_bfd_reloc_from_type (r_type);
1966 howto = elfNN_aarch64_howto_from_bfd_reloc (val);
a06ea964 1967
a6bb11b2
YZ		 1968 if (howto != NULL)
1969 return howto;
a06ea964 1970
a06ea964
NC		 1971 bfd_set_error (bfd_error_bad_value);
1972 return NULL;
1973}
1974
1975static void
cec5225b 1976elfNN_aarch64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
a06ea964
NC		 1977 Elf_Internal_Rela *elf_reloc)
1978{
1979 unsigned int r_type;
1980
cec5225b
YZ		 1981 r_type = ELFNN_R_TYPE (elf_reloc->r_info);
1982 bfd_reloc->howto = elfNN_aarch64_howto_from_type (r_type);
a06ea964
NC		 1983}
1984
a06ea964 1985static reloc_howto_type *
cec5225b 1986elfNN_aarch64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
a06ea964
NC		 1987 bfd_reloc_code_real_type code)
1988{
a6bb11b2 1989 reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (code);
a06ea964 1990
a6bb11b2
YZ		 1991 if (howto != NULL)
1992 return howto;
a06ea964
NC		 1993
1994 bfd_set_error (bfd_error_bad_value);
1995 return NULL;
1996}
1997
1998static reloc_howto_type *
cec5225b 1999elfNN_aarch64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
a06ea964
NC		 2000 const char *r_name)
2001{
2002 unsigned int i;
2003
a6bb11b2
YZ		 2004 for (i = 1; i < ARRAY_SIZE (elfNN_aarch64_howto_table) - 1; ++i)
2005 if (elfNN_aarch64_howto_table[i].name != NULL
2006 && strcasecmp (elfNN_aarch64_howto_table[i].name, r_name) == 0)
2007 return &elfNN_aarch64_howto_table[i];
a06ea964
NC		 2008
2009 return NULL;
2010}
2011
6d00b590 2012#define TARGET_LITTLE_SYM aarch64_elfNN_le_vec
cec5225b 2013#define TARGET_LITTLE_NAME "elfNN-littleaarch64"
6d00b590 2014#define TARGET_BIG_SYM aarch64_elfNN_be_vec
cec5225b 2015#define TARGET_BIG_NAME "elfNN-bigaarch64"
a06ea964 2016
a06ea964
NC		 2017/* The linker script knows the section names for placement.
2018 The entry_names are used to do simple name mangling on the stubs.
2019 Given a function name, and its type, the stub can be found. The
2020 name can be changed. The only requirement is the %s be present. */
2021#define STUB_ENTRY_NAME "__%s_veneer"
2022
2023/* The name of the dynamic interpreter. This is put in the .interp
2024 section. */
2025#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2026
2027#define AARCH64_MAX_FWD_BRANCH_OFFSET \
2028 (((1 << 25) - 1) << 2)
2029#define AARCH64_MAX_BWD_BRANCH_OFFSET \
2030 (-((1 << 25) << 2))
2031
2032#define AARCH64_MAX_ADRP_IMM ((1 << 20) - 1)
2033#define AARCH64_MIN_ADRP_IMM (-(1 << 20))
2034
2035static int
2036aarch64_valid_for_adrp_p (bfd_vma value, bfd_vma place)
2037{
2038 bfd_signed_vma offset = (bfd_signed_vma) (PG (value) - PG (place)) >> 12;
2039 return offset <= AARCH64_MAX_ADRP_IMM && offset >= AARCH64_MIN_ADRP_IMM;
2040}
2041
2042static int
2043aarch64_valid_branch_p (bfd_vma value, bfd_vma place)
2044{
2045 bfd_signed_vma offset = (bfd_signed_vma) (value - place);
2046 return (offset <= AARCH64_MAX_FWD_BRANCH_OFFSET
2047 && offset >= AARCH64_MAX_BWD_BRANCH_OFFSET);
2048}
2049
2050static const uint32_t aarch64_adrp_branch_stub [] =
2051{
2052 0x90000010, /* adrp ip0, X */
2053 /* R_AARCH64_ADR_HI21_PCREL(X) */
2054 0x91000210, /* add ip0, ip0, :lo12:X */
2055 /* R_AARCH64_ADD_ABS_LO12_NC(X) */
2056 0xd61f0200, /* br ip0 */
2057};
2058
2059static const uint32_t aarch64_long_branch_stub[] =
2060{
cec5225b 2061#if ARCH_SIZE == 64
a06ea964 2062 0x58000090, /* ldr ip0, 1f */
cec5225b
YZ		 2063#else
2064 0x18000090, /* ldr wip0, 1f */
2065#endif
a06ea964
NC		 2066 0x10000011, /* adr ip1, #0 */
2067 0x8b110210, /* add ip0, ip0, ip1 */
2068 0xd61f0200, /* br ip0 */
cec5225b
YZ		 2069 0x00000000, /* 1: .xword or .word
2070 R_AARCH64_PRELNN(X) + 12
a06ea964
NC		 2071 */
2072 0x00000000,
2073};
2074
68fcca92
JW		 2075static const uint32_t aarch64_erratum_835769_stub[] =
2076{
2077 0x00000000, /* Placeholder for multiply accumulate. */
2078 0x14000000, /* b <label> */
2079};
2080
4106101c
MS		 2081static const uint32_t aarch64_erratum_843419_stub[] =
2082{
2083 0x00000000, /* Placeholder for LDR instruction. */
2084 0x14000000, /* b <label> */
2085};
2086
a06ea964
NC		 2087/* Section name for stubs is the associated section name plus this
2088 string. */
2089#define STUB_SUFFIX ".stub"
2090
cec5225b 2091enum elf_aarch64_stub_type
a06ea964
NC		 2092{
2093 aarch64_stub_none,
2094 aarch64_stub_adrp_branch,
2095 aarch64_stub_long_branch,
68fcca92 2096 aarch64_stub_erratum_835769_veneer,
4106101c 2097 aarch64_stub_erratum_843419_veneer,
a06ea964
NC		 2098};
2099
cec5225b 2100struct elf_aarch64_stub_hash_entry
a06ea964
NC		 2101{
2102 /* Base hash table entry structure. */
2103 struct bfd_hash_entry root;
2104
2105 /* The stub section. */
2106 asection *stub_sec;
2107
2108 /* Offset within stub_sec of the beginning of this stub. */
2109 bfd_vma stub_offset;
2110
2111 /* Given the symbol's value and its section we can determine its final
2112 value when building the stubs (so the stub knows where to jump). */
2113 bfd_vma target_value;
2114 asection *target_section;
2115
cec5225b 2116 enum elf_aarch64_stub_type stub_type;
a06ea964
NC		 2117
2118 /* The symbol table entry, if any, that this was derived from. */
cec5225b 2119 struct elf_aarch64_link_hash_entry *h;
a06ea964
NC		 2120
2121 /* Destination symbol type */
2122 unsigned char st_type;
2123
2124 /* Where this stub is being called from, or, in the case of combined
2125 stub sections, the first input section in the group. */
2126 asection *id_sec;
2127
2128 /* The name for the local symbol at the start of this stub. The
2129 stub name in the hash table has to be unique; this does not, so
2130 it can be friendlier. */
2131 char *output_name;
68fcca92
JW		 2132
2133 /* The instruction which caused this stub to be generated (only valid for
2134 erratum 835769 workaround stubs at present). */
2135 uint32_t veneered_insn;
4106101c
MS		 2136
2137 /* In an erratum 843419 workaround stub, the ADRP instruction offset. */
2138 bfd_vma adrp_offset;
a06ea964
NC		 2139};
2140
2141/* Used to build a map of a section. This is required for mixed-endian
2142 code/data. */
2143
cec5225b 2144typedef struct elf_elf_section_map
a06ea964
NC		 2145{
2146 bfd_vma vma;
2147 char type;
2148}
cec5225b 2149elf_aarch64_section_map;
a06ea964
NC		 2150
2151
2152typedef struct _aarch64_elf_section_data
2153{
2154 struct bfd_elf_section_data elf;
2155 unsigned int mapcount;
2156 unsigned int mapsize;
cec5225b 2157 elf_aarch64_section_map *map;
a06ea964
NC		 2158}
2159_aarch64_elf_section_data;
2160
cec5225b 2161#define elf_aarch64_section_data(sec) \
a06ea964
NC		 2162 ((_aarch64_elf_section_data *) elf_section_data (sec))
2163
4e8516b2
AP		 2164/* The size of the thread control block which is defined to be two pointers. */
2165#define TCB_SIZE (ARCH_SIZE/8)*2
a06ea964
NC		 2166
2167struct elf_aarch64_local_symbol
2168{
2169 unsigned int got_type;
2170 bfd_signed_vma got_refcount;
2171 bfd_vma got_offset;
2172
2173 /* Offset of the GOTPLT entry reserved for the TLS descriptor. The
2174 offset is from the end of the jump table and reserved entries
2175 within the PLTGOT.
2176
2177 The magic value (bfd_vma) -1 indicates that an offset has not be
2178 allocated. */
2179 bfd_vma tlsdesc_got_jump_table_offset;
2180};
2181
2182struct elf_aarch64_obj_tdata
2183{
2184 struct elf_obj_tdata root;
2185
2186 /* local symbol descriptors */
2187 struct elf_aarch64_local_symbol *locals;
2188
2189 /* Zero to warn when linking objects with incompatible enum sizes. */
2190 int no_enum_size_warning;
2191
2192 /* Zero to warn when linking objects with incompatible wchar_t sizes. */
2193 int no_wchar_size_warning;
2194};
2195
2196#define elf_aarch64_tdata(bfd) \
2197 ((struct elf_aarch64_obj_tdata *) (bfd)->tdata.any)
2198
cec5225b 2199#define elf_aarch64_locals(bfd) (elf_aarch64_tdata (bfd)->locals)
a06ea964
NC		 2200
2201#define is_aarch64_elf(bfd) \
2202 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2203 && elf_tdata (bfd) != NULL \
2204 && elf_object_id (bfd) == AARCH64_ELF_DATA)
2205
2206static bfd_boolean
cec5225b 2207elfNN_aarch64_mkobject (bfd *abfd)
a06ea964
NC		 2208{
2209 return bfd_elf_allocate_object (abfd, sizeof (struct elf_aarch64_obj_tdata),
2210 AARCH64_ELF_DATA);
2211}
2212
cec5225b
YZ		 2213#define elf_aarch64_hash_entry(ent) \
2214 ((struct elf_aarch64_link_hash_entry *)(ent))
a06ea964
NC		 2215
2216#define GOT_UNKNOWN 0
2217#define GOT_NORMAL 1
2218#define GOT_TLS_GD 2
2219#define GOT_TLS_IE 4
2220#define GOT_TLSDESC_GD 8
2221
2222#define GOT_TLS_GD_ANY_P(type) ((type & GOT_TLS_GD) || (type & GOT_TLSDESC_GD))
2223
2224/* AArch64 ELF linker hash entry. */
cec5225b 2225struct elf_aarch64_link_hash_entry
a06ea964
NC		 2226{
2227 struct elf_link_hash_entry root;
2228
2229 /* Track dynamic relocs copied for this symbol. */
2230 struct elf_dyn_relocs *dyn_relocs;
2231
a06ea964
NC		 2232 /* Since PLT entries have variable size, we need to record the
2233 index into .got.plt instead of recomputing it from the PLT
2234 offset. */
2235 bfd_signed_vma plt_got_offset;
2236
2237 /* Bit mask representing the type of GOT entry(s) if any required by
2238 this symbol. */
2239 unsigned int got_type;
2240
2241 /* A pointer to the most recently used stub hash entry against this
2242 symbol. */
cec5225b 2243 struct elf_aarch64_stub_hash_entry *stub_cache;
a06ea964
NC		 2244
2245 /* Offset of the GOTPLT entry reserved for the TLS descriptor. The offset
2246 is from the end of the jump table and reserved entries within the PLTGOT.
2247
2248 The magic value (bfd_vma) -1 indicates that an offset has not
2249 be allocated. */
2250 bfd_vma tlsdesc_got_jump_table_offset;
2251};
2252
2253static unsigned int
cec5225b 2254elfNN_aarch64_symbol_got_type (struct elf_link_hash_entry *h,
a06ea964
NC		 2255 bfd *abfd,
2256 unsigned long r_symndx)
2257{
2258 if (h)
cec5225b 2259 return elf_aarch64_hash_entry (h)->got_type;
a06ea964 2260
cec5225b 2261 if (! elf_aarch64_locals (abfd))
a06ea964
NC		 2262 return GOT_UNKNOWN;
2263
cec5225b 2264 return elf_aarch64_locals (abfd)[r_symndx].got_type;
a06ea964
NC		 2265}
2266
a06ea964 2267/* Get the AArch64 elf linker hash table from a link_info structure. */
cec5225b
YZ		 2268#define elf_aarch64_hash_table(info) \
2269 ((struct elf_aarch64_link_hash_table *) ((info)->hash))
a06ea964
NC		 2270
2271#define aarch64_stub_hash_lookup(table, string, create, copy) \
cec5225b 2272 ((struct elf_aarch64_stub_hash_entry *) \
a06ea964
NC		 2273 bfd_hash_lookup ((table), (string), (create), (copy)))
2274
2275/* AArch64 ELF linker hash table. */
cec5225b 2276struct elf_aarch64_link_hash_table
a06ea964
NC		 2277{
2278 /* The main hash table. */
2279 struct elf_link_hash_table root;
2280
2281 /* Nonzero to force PIC branch veneers. */
2282 int pic_veneer;
2283
68fcca92
JW		 2284 /* Fix erratum 835769. */
2285 int fix_erratum_835769;
2286
4106101c
MS		 2287 /* Fix erratum 843419. */
2288 int fix_erratum_843419;
2289
2290 /* Enable ADRP->ADR rewrite for erratum 843419 workaround. */
2291 int fix_erratum_843419_adr;
2292
1f56df9d
JW		 2293 /* Don't apply link-time values for dynamic relocations. */
2294 int no_apply_dynamic_relocs;
2295
a06ea964
NC		 2296 /* The number of bytes in the initial entry in the PLT. */
2297 bfd_size_type plt_header_size;
2298
2299 /* The number of bytes in the subsequent PLT etries. */
2300 bfd_size_type plt_entry_size;
2301
a06ea964
NC		 2302 /* Small local sym cache. */
2303 struct sym_cache sym_cache;
2304
2305 /* For convenience in allocate_dynrelocs. */
2306 bfd *obfd;
2307
2308 /* The amount of space used by the reserved portion of the sgotplt
2309 section, plus whatever space is used by the jump slots. */
2310 bfd_vma sgotplt_jump_table_size;
2311
2312 /* The stub hash table. */
2313 struct bfd_hash_table stub_hash_table;
2314
2315 /* Linker stub bfd. */
2316 bfd *stub_bfd;
2317
2318 /* Linker call-backs. */
2319 asection *(*add_stub_section) (const char *, asection *);
2320 void (*layout_sections_again) (void);
2321
2322 /* Array to keep track of which stub sections have been created, and
2323 information on stub grouping. */
2324 struct map_stub
2325 {
2326 /* This is the section to which stubs in the group will be
2327 attached. */
2328 asection *link_sec;
2329 /* The stub section. */
2330 asection *stub_sec;
2331 } *stub_group;
2332
cec5225b 2333 /* Assorted information used by elfNN_aarch64_size_stubs. */
a06ea964 2334 unsigned int bfd_count;
7292b3ac 2335 unsigned int top_index;
a06ea964
NC		 2336 asection **input_list;
2337
2338 /* The offset into splt of the PLT entry for the TLS descriptor
2339 resolver. Special values are 0, if not necessary (or not found
2340 to be necessary yet), and -1 if needed but not determined
2341 yet. */
2342 bfd_vma tlsdesc_plt;
2343
2344 /* The GOT offset for the lazy trampoline. Communicated to the
2345 loader via DT_TLSDESC_GOT. The magic value (bfd_vma) -1
2346 indicates an offset is not allocated. */
2347 bfd_vma dt_tlsdesc_got;
1419bbe5
WN		 2348
2349 /* Used by local STT_GNU_IFUNC symbols. */
2350 htab_t loc_hash_table;
2351 void * loc_hash_memory;
a06ea964
NC		 2352};
2353
a06ea964
NC		 2354/* Create an entry in an AArch64 ELF linker hash table. */
2355
2356static struct bfd_hash_entry *
cec5225b 2357elfNN_aarch64_link_hash_newfunc (struct bfd_hash_entry *entry,
a06ea964
NC		 2358 struct bfd_hash_table *table,
2359 const char *string)
2360{
cec5225b
YZ		 2361 struct elf_aarch64_link_hash_entry *ret =
2362 (struct elf_aarch64_link_hash_entry *) entry;
a06ea964
NC		 2363
2364 /* Allocate the structure if it has not already been allocated by a
2365 subclass. */
2366 if (ret == NULL)
2367 ret = bfd_hash_allocate (table,
cec5225b 2368 sizeof (struct elf_aarch64_link_hash_entry));
a06ea964
NC		 2369 if (ret == NULL)
2370 return (struct bfd_hash_entry *) ret;
2371
2372 /* Call the allocation method of the superclass. */
cec5225b 2373 ret = ((struct elf_aarch64_link_hash_entry *)
a06ea964
NC		 2374 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2375 table, string));
2376 if (ret != NULL)
2377 {
2378 ret->dyn_relocs = NULL;
a06ea964
NC		 2379 ret->got_type = GOT_UNKNOWN;
2380 ret->plt_got_offset = (bfd_vma) - 1;
2381 ret->stub_cache = NULL;
2382 ret->tlsdesc_got_jump_table_offset = (bfd_vma) - 1;
2383 }
2384
2385 return (struct bfd_hash_entry *) ret;
2386}
2387
2388/* Initialize an entry in the stub hash table. */
2389
2390static struct bfd_hash_entry *
2391stub_hash_newfunc (struct bfd_hash_entry *entry,
2392 struct bfd_hash_table *table, const char *string)
2393{
2394 /* Allocate the structure if it has not already been allocated by a
2395 subclass. */
2396 if (entry == NULL)
2397 {
2398 entry = bfd_hash_allocate (table,
2399 sizeof (struct
cec5225b 2400 elf_aarch64_stub_hash_entry));
a06ea964
NC		 2401 if (entry == NULL)
2402 return entry;
2403 }
2404
2405 /* Call the allocation method of the superclass. */
2406 entry = bfd_hash_newfunc (entry, table, string);
2407 if (entry != NULL)
2408 {
cec5225b 2409 struct elf_aarch64_stub_hash_entry *eh;
a06ea964
NC		 2410
2411 /* Initialize the local fields. */
cec5225b 2412 eh = (struct elf_aarch64_stub_hash_entry *) entry;
4106101c 2413 eh->adrp_offset = 0;
a06ea964
NC		 2414 eh->stub_sec = NULL;
2415 eh->stub_offset = 0;
2416 eh->target_value = 0;
2417 eh->target_section = NULL;
2418 eh->stub_type = aarch64_stub_none;
2419 eh->h = NULL;
2420 eh->id_sec = NULL;
2421 }
2422
2423 return entry;
2424}
2425
1419bbe5
WN		 2426/* Compute a hash of a local hash entry. We use elf_link_hash_entry
2427 for local symbol so that we can handle local STT_GNU_IFUNC symbols
2428 as global symbol. We reuse indx and dynstr_index for local symbol
2429 hash since they aren't used by global symbols in this backend. */
2430
2431static hashval_t
2432elfNN_aarch64_local_htab_hash (const void *ptr)
2433{
2434 struct elf_link_hash_entry *h
2435 = (struct elf_link_hash_entry *) ptr;
2436 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
2437}
2438
2439/* Compare local hash entries. */
2440
2441static int
2442elfNN_aarch64_local_htab_eq (const void *ptr1, const void *ptr2)
2443{
2444 struct elf_link_hash_entry *h1
2445 = (struct elf_link_hash_entry *) ptr1;
2446 struct elf_link_hash_entry *h2
2447 = (struct elf_link_hash_entry *) ptr2;
2448
2449 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
2450}
2451
2452/* Find and/or create a hash entry for local symbol. */
2453
2454static struct elf_link_hash_entry *
2455elfNN_aarch64_get_local_sym_hash (struct elf_aarch64_link_hash_table *htab,
2456 bfd *abfd, const Elf_Internal_Rela *rel,
2457 bfd_boolean create)
2458{
2459 struct elf_aarch64_link_hash_entry e, *ret;
2460 asection *sec = abfd->sections;
2461 hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id,
2462 ELFNN_R_SYM (rel->r_info));
2463 void **slot;
2464
2465 e.root.indx = sec->id;
2466 e.root.dynstr_index = ELFNN_R_SYM (rel->r_info);
2467 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
2468 create ? INSERT : NO_INSERT);
2469
2470 if (!slot)
2471 return NULL;
2472
2473 if (*slot)
2474 {
2475 ret = (struct elf_aarch64_link_hash_entry *) *slot;
2476 return &ret->root;
2477 }
2478
2479 ret = (struct elf_aarch64_link_hash_entry *)
2480 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
2481 sizeof (struct elf_aarch64_link_hash_entry));
2482 if (ret)
2483 {
2484 memset (ret, 0, sizeof (*ret));
2485 ret->root.indx = sec->id;
2486 ret->root.dynstr_index = ELFNN_R_SYM (rel->r_info);
2487 ret->root.dynindx = -1;
2488 *slot = ret;
2489 }
2490 return &ret->root;
2491}
a06ea964
NC		 2492
2493/* Copy the extra info we tack onto an elf_link_hash_entry. */
2494
2495static void
cec5225b 2496elfNN_aarch64_copy_indirect_symbol (struct bfd_link_info *info,
a06ea964
NC		 2497 struct elf_link_hash_entry *dir,
2498 struct elf_link_hash_entry *ind)
2499{
cec5225b 2500 struct elf_aarch64_link_hash_entry *edir, *eind;
a06ea964 2501
cec5225b
YZ		 2502 edir = (struct elf_aarch64_link_hash_entry *) dir;
2503 eind = (struct elf_aarch64_link_hash_entry *) ind;
a06ea964
NC		 2504
2505 if (eind->dyn_relocs != NULL)
2506 {
2507 if (edir->dyn_relocs != NULL)
2508 {
2509 struct elf_dyn_relocs **pp;
2510 struct elf_dyn_relocs *p;
2511
2512 /* Add reloc counts against the indirect sym to the direct sym
2513 list. Merge any entries against the same section. */
2514 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2515 {
2516 struct elf_dyn_relocs *q;
2517
2518 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2519 if (q->sec == p->sec)
2520 {
2521 q->pc_count += p->pc_count;
2522 q->count += p->count;
2523 *pp = p->next;
2524 break;
2525 }
2526 if (q == NULL)
2527 pp = &p->next;
2528 }
2529 *pp = edir->dyn_relocs;
2530 }
2531
2532 edir->dyn_relocs = eind->dyn_relocs;
2533 eind->dyn_relocs = NULL;
2534 }
2535
a06ea964
NC		 2536 if (ind->root.type == bfd_link_hash_indirect)
2537 {
2538 /* Copy over PLT info. */
2539 if (dir->got.refcount <= 0)
2540 {
2541 edir->got_type = eind->got_type;
2542 eind->got_type = GOT_UNKNOWN;
2543 }
2544 }
2545
2546 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2547}
2548
68faa637
AM		 2549/* Destroy an AArch64 elf linker hash table. */
2550
2551static void
d495ab0d 2552elfNN_aarch64_link_hash_table_free (bfd *obfd)
68faa637
AM		 2553{
2554 struct elf_aarch64_link_hash_table *ret
d495ab0d 2555 = (struct elf_aarch64_link_hash_table *) obfd->link.hash;
68faa637
AM		 2556
2557 if (ret->loc_hash_table)
2558 htab_delete (ret->loc_hash_table);
2559 if (ret->loc_hash_memory)
2560 objalloc_free ((struct objalloc *) ret->loc_hash_memory);
2561
2562 bfd_hash_table_free (&ret->stub_hash_table);
d495ab0d 2563 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 2564}
2565
a06ea964
NC		 2566/* Create an AArch64 elf linker hash table. */
2567
2568static struct bfd_link_hash_table *
cec5225b 2569elfNN_aarch64_link_hash_table_create (bfd *abfd)
a06ea964 2570{
cec5225b
YZ		 2571 struct elf_aarch64_link_hash_table *ret;
2572 bfd_size_type amt = sizeof (struct elf_aarch64_link_hash_table);
a06ea964 2573
7bf52ea2 2574 ret = bfd_zmalloc (amt);
a06ea964
NC		 2575 if (ret == NULL)
2576 return NULL;
2577
2578 if (!_bfd_elf_link_hash_table_init
cec5225b
YZ		 2579 (&ret->root, abfd, elfNN_aarch64_link_hash_newfunc,
2580 sizeof (struct elf_aarch64_link_hash_entry), AARCH64_ELF_DATA))
a06ea964
NC		 2581 {
2582 free (ret);
2583 return NULL;
2584 }
2585
a06ea964
NC		 2586 ret->plt_header_size = PLT_ENTRY_SIZE;
2587 ret->plt_entry_size = PLT_SMALL_ENTRY_SIZE;
a06ea964 2588 ret->obfd = abfd;
a06ea964
NC		 2589 ret->dt_tlsdesc_got = (bfd_vma) - 1;
2590
2591 if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc,
cec5225b 2592 sizeof (struct elf_aarch64_stub_hash_entry)))
a06ea964 2593 {
d495ab0d 2594 _bfd_elf_link_hash_table_free (abfd);
a06ea964
NC		 2595 return NULL;
2596 }
2597
1419bbe5
WN		 2598 ret->loc_hash_table = htab_try_create (1024,
2599 elfNN_aarch64_local_htab_hash,
2600 elfNN_aarch64_local_htab_eq,
2601 NULL);
2602 ret->loc_hash_memory = objalloc_create ();
2603 if (!ret->loc_hash_table || !ret->loc_hash_memory)
2604 {
d495ab0d 2605 elfNN_aarch64_link_hash_table_free (abfd);
1419bbe5
WN		 2606 return NULL;
2607 }
d495ab0d 2608 ret->root.root.hash_table_free = elfNN_aarch64_link_hash_table_free;
1419bbe5 2609
a06ea964
NC		 2610 return &ret->root.root;
2611}
2612
a06ea964
NC		 2613static bfd_boolean
2614aarch64_relocate (unsigned int r_type, bfd *input_bfd, asection *input_section,
2615 bfd_vma offset, bfd_vma value)
2616{
2617 reloc_howto_type *howto;
2618 bfd_vma place;
2619
cec5225b 2620 howto = elfNN_aarch64_howto_from_type (r_type);
a06ea964
NC		 2621 place = (input_section->output_section->vma + input_section->output_offset
2622 + offset);
caed7120
YZ		 2623
2624 r_type = elfNN_aarch64_bfd_reloc_from_type (r_type);
2625 value = _bfd_aarch64_elf_resolve_relocation (r_type, place, value, 0, FALSE);
2626 return _bfd_aarch64_elf_put_addend (input_bfd,
2627 input_section->contents + offset, r_type,
2628 howto, value);
a06ea964
NC		 2629}
2630
cec5225b 2631static enum elf_aarch64_stub_type
a06ea964
NC		 2632aarch64_select_branch_stub (bfd_vma value, bfd_vma place)
2633{
2634 if (aarch64_valid_for_adrp_p (value, place))
2635 return aarch64_stub_adrp_branch;
2636 return aarch64_stub_long_branch;
2637}
2638
2639/* Determine the type of stub needed, if any, for a call. */
2640
cec5225b 2641static enum elf_aarch64_stub_type
9a228467 2642aarch64_type_of_stub (asection *input_sec,
a06ea964 2643 const Elf_Internal_Rela *rel,
f678ded7 2644 asection *sym_sec,
a06ea964 2645 unsigned char st_type,
a06ea964
NC		 2646 bfd_vma destination)
2647{
2648 bfd_vma location;
2649 bfd_signed_vma branch_offset;
2650 unsigned int r_type;
cec5225b 2651 enum elf_aarch64_stub_type stub_type = aarch64_stub_none;
a06ea964 2652
f678ded7 2653 if (st_type != STT_FUNC
2f340668 2654 && (sym_sec == input_sec))
a06ea964
NC		 2655 return stub_type;
2656
a06ea964
NC		 2657 /* Determine where the call point is. */
2658 location = (input_sec->output_offset
2659 + input_sec->output_section->vma + rel->r_offset);
2660
2661 branch_offset = (bfd_signed_vma) (destination - location);
2662
cec5225b 2663 r_type = ELFNN_R_TYPE (rel->r_info);
a06ea964
NC		 2664
2665 /* We don't want to redirect any old unconditional jump in this way,
2666 only one which is being used for a sibcall, where it is
2667 acceptable for the IP0 and IP1 registers to be clobbered. */
a6bb11b2 2668 if ((r_type == AARCH64_R (CALL26) || r_type == AARCH64_R (JUMP26))
a06ea964
NC		 2669 && (branch_offset > AARCH64_MAX_FWD_BRANCH_OFFSET
2670 || branch_offset < AARCH64_MAX_BWD_BRANCH_OFFSET))
2671 {
2672 stub_type = aarch64_stub_long_branch;
2673 }
2674
2675 return stub_type;
2676}
2677
2678/* Build a name for an entry in the stub hash table. */
2679
2680static char *
cec5225b 2681elfNN_aarch64_stub_name (const asection *input_section,
a06ea964 2682 const asection *sym_sec,
cec5225b 2683 const struct elf_aarch64_link_hash_entry *hash,
a06ea964
NC		 2684 const Elf_Internal_Rela *rel)
2685{
2686 char *stub_name;
2687 bfd_size_type len;
2688
2689 if (hash)
2690 {
2691 len = 8 + 1 + strlen (hash->root.root.root.string) + 1 + 16 + 1;
2692 stub_name = bfd_malloc (len);
2693 if (stub_name != NULL)
2694 snprintf (stub_name, len, "%08x_%s+%" BFD_VMA_FMT "x",
2695 (unsigned int) input_section->id,
2696 hash->root.root.root.string,
2697 rel->r_addend);
2698 }
2699 else
2700 {
2701 len = 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1;
2702 stub_name = bfd_malloc (len);
2703 if (stub_name != NULL)
2704 snprintf (stub_name, len, "%08x_%x:%x+%" BFD_VMA_FMT "x",
2705 (unsigned int) input_section->id,
2706 (unsigned int) sym_sec->id,
cec5225b 2707 (unsigned int) ELFNN_R_SYM (rel->r_info),
a06ea964
NC		 2708 rel->r_addend);
2709 }
2710
2711 return stub_name;
2712}
2713
7f784814
JW		 2714/* Return TRUE if symbol H should be hashed in the `.gnu.hash' section. For
2715 executable PLT slots where the executable never takes the address of those
2716 functions, the function symbols are not added to the hash table. */
2717
2718static bfd_boolean
2719elf_aarch64_hash_symbol (struct elf_link_hash_entry *h)
2720{
2721 if (h->plt.offset != (bfd_vma) -1
2722 && !h->def_regular
2723 && !h->pointer_equality_needed)
2724 return FALSE;
2725
2726 return _bfd_elf_hash_symbol (h);
2727}
2728
2729
a06ea964
NC		 2730/* Look up an entry in the stub hash. Stub entries are cached because
2731 creating the stub name takes a bit of time. */
2732
cec5225b
YZ		 2733static struct elf_aarch64_stub_hash_entry *
2734elfNN_aarch64_get_stub_entry (const asection *input_section,
a06ea964
NC		 2735 const asection *sym_sec,
2736 struct elf_link_hash_entry *hash,
2737 const Elf_Internal_Rela *rel,
cec5225b 2738 struct elf_aarch64_link_hash_table *htab)
a06ea964 2739{
cec5225b
YZ		 2740 struct elf_aarch64_stub_hash_entry *stub_entry;
2741 struct elf_aarch64_link_hash_entry *h =
2742 (struct elf_aarch64_link_hash_entry *) hash;
a06ea964
NC		 2743 const asection *id_sec;
2744
2745 if ((input_section->flags & SEC_CODE) == 0)
2746 return NULL;
2747
2748 /* If this input section is part of a group of sections sharing one
2749 stub section, then use the id of the first section in the group.
2750 Stub names need to include a section id, as there may well be
2751 more than one stub used to reach say, printf, and we need to
2752 distinguish between them. */
2753 id_sec = htab->stub_group[input_section->id].link_sec;
2754
2755 if (h != NULL && h->stub_cache != NULL
2756 && h->stub_cache->h == h && h->stub_cache->id_sec == id_sec)
2757 {
2758 stub_entry = h->stub_cache;
2759 }
2760 else
2761 {
2762 char *stub_name;
2763
cec5225b 2764 stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, h, rel);
a06ea964
NC		 2765 if (stub_name == NULL)
2766 return NULL;
2767
2768 stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table,
2769 stub_name, FALSE, FALSE);
2770 if (h != NULL)
2771 h->stub_cache = stub_entry;
2772
2773 free (stub_name);
2774 }
2775
2776 return stub_entry;
2777}
2778
a06ea964 2779
66585675
MS		 2780/* Create a stub section. */
2781
2782static asection *
2783_bfd_aarch64_create_stub_section (asection *section,
2784 struct elf_aarch64_link_hash_table *htab)
2785{
2786 size_t namelen;
2787 bfd_size_type len;
2788 char *s_name;
2789
2790 namelen = strlen (section->name);
2791 len = namelen + sizeof (STUB_SUFFIX);
2792 s_name = bfd_alloc (htab->stub_bfd, len);
2793 if (s_name == NULL)
2794 return NULL;
2795
2796 memcpy (s_name, section->name, namelen);
2797 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
2798 return (*htab->add_stub_section) (s_name, section);
2799}
2800
2801
fc6d53be
MS		 2802/* Find or create a stub section for a link section.
2803
2804 Fix or create the stub section used to collect stubs attached to
2805 the specified link section. */
2806
2807static asection *
2808_bfd_aarch64_get_stub_for_link_section (asection *link_section,
2809 struct elf_aarch64_link_hash_table *htab)
2810{
2811 if (htab->stub_group[link_section->id].stub_sec == NULL)
2812 htab->stub_group[link_section->id].stub_sec
2813 = _bfd_aarch64_create_stub_section (link_section, htab);
2814 return htab->stub_group[link_section->id].stub_sec;
2815}
2816
2817
ef857521
MS		 2818/* Find or create a stub section in the stub group for an input
2819 section. */
2820
2821static asection *
2822_bfd_aarch64_create_or_find_stub_sec (asection *section,
2823 struct elf_aarch64_link_hash_table *htab)
a06ea964 2824{
fc6d53be
MS		 2825 asection *link_sec = htab->stub_group[section->id].link_sec;
2826 return _bfd_aarch64_get_stub_for_link_section (link_sec, htab);
ef857521
MS		 2827}
2828
2829
2830/* Add a new stub entry in the stub group associated with an input
2831 section to the stub hash. Not all fields of the new stub entry are
2832 initialised. */
2833
2834static struct elf_aarch64_stub_hash_entry *
2835_bfd_aarch64_add_stub_entry_in_group (const char *stub_name,
2836 asection *section,
2837 struct elf_aarch64_link_hash_table *htab)
2838{
2839 asection *link_sec;
2840 asection *stub_sec;
2841 struct elf_aarch64_stub_hash_entry *stub_entry;
2842
2843 link_sec = htab->stub_group[section->id].link_sec;
2844 stub_sec = _bfd_aarch64_create_or_find_stub_sec (section, htab);
2845
a06ea964
NC		 2846 /* Enter this entry into the linker stub hash table. */
2847 stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name,
2848 TRUE, FALSE);
2849 if (stub_entry == NULL)
2850 {
695344c0 2851 /* xgettext:c-format */
dae82561 2852 _bfd_error_handler (_("%B: cannot create stub entry %s"),
4eca0228 2853 section->owner, stub_name);
a06ea964
NC		 2854 return NULL;
2855 }
2856
2857 stub_entry->stub_sec = stub_sec;
2858 stub_entry->stub_offset = 0;
2859 stub_entry->id_sec = link_sec;
2860
2861 return stub_entry;
2862}
2863
4106101c
MS		 2864/* Add a new stub entry in the final stub section to the stub hash.
2865 Not all fields of the new stub entry are initialised. */
2866
2867static struct elf_aarch64_stub_hash_entry *
2868_bfd_aarch64_add_stub_entry_after (const char *stub_name,
2869 asection *link_section,
2870 struct elf_aarch64_link_hash_table *htab)
2871{
2872 asection *stub_sec;
2873 struct elf_aarch64_stub_hash_entry *stub_entry;
2874
2875 stub_sec = _bfd_aarch64_get_stub_for_link_section (link_section, htab);
2876 stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name,
2877 TRUE, FALSE);
2878 if (stub_entry == NULL)
2879 {
4eca0228 2880 _bfd_error_handler (_("cannot create stub entry %s"), stub_name);
4106101c
MS		 2881 return NULL;
2882 }
2883
2884 stub_entry->stub_sec = stub_sec;
2885 stub_entry->stub_offset = 0;
2886 stub_entry->id_sec = link_section;
2887
2888 return stub_entry;
2889}
2890
2891
a06ea964
NC		 2892static bfd_boolean
2893aarch64_build_one_stub (struct bfd_hash_entry *gen_entry,
2894 void *in_arg ATTRIBUTE_UNUSED)
2895{
cec5225b 2896 struct elf_aarch64_stub_hash_entry *stub_entry;
a06ea964
NC		 2897 asection *stub_sec;
2898 bfd *stub_bfd;
2899 bfd_byte *loc;
2900 bfd_vma sym_value;
68fcca92
JW		 2901 bfd_vma veneered_insn_loc;
2902 bfd_vma veneer_entry_loc;
2903 bfd_signed_vma branch_offset = 0;
a06ea964
NC		 2904 unsigned int template_size;
2905 const uint32_t *template;
2906 unsigned int i;
2907
2908 /* Massage our args to the form they really have. */
cec5225b 2909 stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry;
a06ea964
NC		 2910
2911 stub_sec = stub_entry->stub_sec;
2912
2913 /* Make a note of the offset within the stubs for this entry. */
2914 stub_entry->stub_offset = stub_sec->size;
2915 loc = stub_sec->contents + stub_entry->stub_offset;
2916
2917 stub_bfd = stub_sec->owner;
2918
2919 /* This is the address of the stub destination. */
2920 sym_value = (stub_entry->target_value
2921 + stub_entry->target_section->output_offset
2922 + stub_entry->target_section->output_section->vma);
2923
2924 if (stub_entry->stub_type == aarch64_stub_long_branch)
2925 {
2926 bfd_vma place = (stub_entry->stub_offset + stub_sec->output_section->vma
2927 + stub_sec->output_offset);
2928
2929 /* See if we can relax the stub. */
2930 if (aarch64_valid_for_adrp_p (sym_value, place))
2931 stub_entry->stub_type = aarch64_select_branch_stub (sym_value, place);
2932 }
2933
2934 switch (stub_entry->stub_type)
2935 {
2936 case aarch64_stub_adrp_branch:
2937 template = aarch64_adrp_branch_stub;
2938 template_size = sizeof (aarch64_adrp_branch_stub);
2939 break;
2940 case aarch64_stub_long_branch:
2941 template = aarch64_long_branch_stub;
2942 template_size = sizeof (aarch64_long_branch_stub);
2943 break;
68fcca92
JW		 2944 case aarch64_stub_erratum_835769_veneer:
2945 template = aarch64_erratum_835769_stub;
2946 template_size = sizeof (aarch64_erratum_835769_stub);
2947 break;
4106101c
MS		 2948 case aarch64_stub_erratum_843419_veneer:
2949 template = aarch64_erratum_843419_stub;
2950 template_size = sizeof (aarch64_erratum_843419_stub);
2951 break;
a06ea964 2952 default:
8e2fe09f 2953 abort ();
a06ea964
NC		 2954 }
2955
2956 for (i = 0; i < (template_size / sizeof template[0]); i++)
2957 {
2958 bfd_putl32 (template[i], loc);
2959 loc += 4;
2960 }
2961
2962 template_size = (template_size + 7) & ~7;
2963 stub_sec->size += template_size;
2964
2965 switch (stub_entry->stub_type)
2966 {
2967 case aarch64_stub_adrp_branch:
a6bb11b2 2968 if (aarch64_relocate (AARCH64_R (ADR_PREL_PG_HI21), stub_bfd, stub_sec,
a06ea964
NC		 2969 stub_entry->stub_offset, sym_value))
2970 /* The stub would not have been relaxed if the offset was out
2971 of range. */
2972 BFD_FAIL ();
2973
93ca8569
TB		 2974 if (aarch64_relocate (AARCH64_R (ADD_ABS_LO12_NC), stub_bfd, stub_sec,
2975 stub_entry->stub_offset + 4, sym_value))
2976 BFD_FAIL ();
a06ea964
NC		 2977 break;
2978
2979 case aarch64_stub_long_branch:
2980 /* We want the value relative to the address 12 bytes back from the
2981 value itself. */
93ca8569
TB		 2982 if (aarch64_relocate (AARCH64_R (PRELNN), stub_bfd, stub_sec,
2983 stub_entry->stub_offset + 16, sym_value + 12))
2984 BFD_FAIL ();
a06ea964 2985 break;
68fcca92
JW		 2986
2987 case aarch64_stub_erratum_835769_veneer:
2988 veneered_insn_loc = stub_entry->target_section->output_section->vma
2989 + stub_entry->target_section->output_offset
2990 + stub_entry->target_value;
2991 veneer_entry_loc = stub_entry->stub_sec->output_section->vma
2992 + stub_entry->stub_sec->output_offset
2993 + stub_entry->stub_offset;
2994 branch_offset = veneered_insn_loc - veneer_entry_loc;
2995 branch_offset >>= 2;
2996 branch_offset &= 0x3ffffff;
2997 bfd_putl32 (stub_entry->veneered_insn,
2998 stub_sec->contents + stub_entry->stub_offset);
2999 bfd_putl32 (template[1] | branch_offset,
3000 stub_sec->contents + stub_entry->stub_offset + 4);
3001 break;
3002
4106101c
MS		 3003 case aarch64_stub_erratum_843419_veneer:
3004 if (aarch64_relocate (AARCH64_R (JUMP26), stub_bfd, stub_sec,
3005 stub_entry->stub_offset + 4, sym_value + 4))
3006 BFD_FAIL ();
3007 break;
3008
a06ea964 3009 default:
8e2fe09f 3010 abort ();
a06ea964
NC		 3011 }
3012
3013 return TRUE;
3014}
3015
3016/* As above, but don't actually build the stub. Just bump offset so
3017 we know stub section sizes. */
3018
3019static bfd_boolean
3020aarch64_size_one_stub (struct bfd_hash_entry *gen_entry,
3021 void *in_arg ATTRIBUTE_UNUSED)
3022{
cec5225b 3023 struct elf_aarch64_stub_hash_entry *stub_entry;
a06ea964
NC		 3024 int size;
3025
3026 /* Massage our args to the form they really have. */
cec5225b 3027 stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry;
a06ea964
NC		 3028
3029 switch (stub_entry->stub_type)
3030 {
3031 case aarch64_stub_adrp_branch:
3032 size = sizeof (aarch64_adrp_branch_stub);
3033 break;
3034 case aarch64_stub_long_branch:
3035 size = sizeof (aarch64_long_branch_stub);
3036 break;
68fcca92
JW		 3037 case aarch64_stub_erratum_835769_veneer:
3038 size = sizeof (aarch64_erratum_835769_stub);
3039 break;
4106101c
MS		 3040 case aarch64_stub_erratum_843419_veneer:
3041 size = sizeof (aarch64_erratum_843419_stub);
3042 break;
a06ea964 3043 default:
8e2fe09f 3044 abort ();
a06ea964
NC		 3045 }
3046
3047 size = (size + 7) & ~7;
3048 stub_entry->stub_sec->size += size;
3049 return TRUE;
3050}
3051
3052/* External entry points for sizing and building linker stubs. */
3053
3054/* Set up various things so that we can make a list of input sections
3055 for each output section included in the link. Returns -1 on error,
3056 0 when no stubs will be needed, and 1 on success. */
3057
3058int
cec5225b 3059elfNN_aarch64_setup_section_lists (bfd *output_bfd,
a06ea964
NC		 3060 struct bfd_link_info *info)
3061{
3062 bfd *input_bfd;
3063 unsigned int bfd_count;
7292b3ac 3064 unsigned int top_id, top_index;
a06ea964
NC		 3065 asection *section;
3066 asection **input_list, **list;
3067 bfd_size_type amt;
cec5225b
YZ		 3068 struct elf_aarch64_link_hash_table *htab =
3069 elf_aarch64_hash_table (info);
a06ea964
NC		 3070
3071 if (!is_elf_hash_table (htab))
3072 return 0;
3073
3074 /* Count the number of input BFDs and find the top input section id. */
3075 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
c72f2fb2 3076 input_bfd != NULL; input_bfd = input_bfd->link.next)
a06ea964
NC		 3077 {
3078 bfd_count += 1;
3079 for (section = input_bfd->sections;
3080 section != NULL; section = section->next)
3081 {
3082 if (top_id < section->id)
3083 top_id = section->id;
3084 }
3085 }
3086 htab->bfd_count = bfd_count;
3087
3088 amt = sizeof (struct map_stub) * (top_id + 1);
3089 htab->stub_group = bfd_zmalloc (amt);
3090 if (htab->stub_group == NULL)
3091 return -1;
3092
3093 /* We can't use output_bfd->section_count here to find the top output
3094 section index as some sections may have been removed, and
3095 _bfd_strip_section_from_output doesn't renumber the indices. */
3096 for (section = output_bfd->sections, top_index = 0;
3097 section != NULL; section = section->next)
3098 {
3099 if (top_index < section->index)
3100 top_index = section->index;
3101 }
3102
3103 htab->top_index = top_index;
3104 amt = sizeof (asection *) * (top_index + 1);
3105 input_list = bfd_malloc (amt);
3106 htab->input_list = input_list;
3107 if (input_list == NULL)
3108 return -1;
3109
3110 /* For sections we aren't interested in, mark their entries with a
3111 value we can check later. */
3112 list = input_list + top_index;
3113 do
3114 *list = bfd_abs_section_ptr;
3115 while (list-- != input_list);
3116
3117 for (section = output_bfd->sections;
3118 section != NULL; section = section->next)
3119 {
3120 if ((section->flags & SEC_CODE) != 0)
3121 input_list[section->index] = NULL;
3122 }
3123
3124 return 1;
3125}
3126
cec5225b 3127/* Used by elfNN_aarch64_next_input_section and group_sections. */
a06ea964
NC		 3128#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3129
3130/* The linker repeatedly calls this function for each input section,
3131 in the order that input sections are linked into output sections.
3132 Build lists of input sections to determine groupings between which
3133 we may insert linker stubs. */
3134
3135void
cec5225b 3136elfNN_aarch64_next_input_section (struct bfd_link_info *info, asection *isec)
a06ea964 3137{
cec5225b
YZ		 3138 struct elf_aarch64_link_hash_table *htab =
3139 elf_aarch64_hash_table (info);
a06ea964
NC		 3140
3141 if (isec->output_section->index <= htab->top_index)
3142 {
3143 asection **list = htab->input_list + isec->output_section->index;
3144
3145 if (*list != bfd_abs_section_ptr)
3146 {
3147 /* Steal the link_sec pointer for our list. */
3148 /* This happens to make the list in reverse order,
3149 which is what we want. */
3150 PREV_SEC (isec) = *list;
3151 *list = isec;
3152 }
3153 }
3154}
3155
3156/* See whether we can group stub sections together. Grouping stub
3157 sections may result in fewer stubs. More importantly, we need to
3158 put all .init* and .fini* stubs at the beginning of the .init or
3159 .fini output sections respectively, because glibc splits the
3160 _init and _fini functions into multiple parts. Putting a stub in
3161 the middle of a function is not a good idea. */
3162
3163static void
cec5225b 3164group_sections (struct elf_aarch64_link_hash_table *htab,
a06ea964
NC		 3165 bfd_size_type stub_group_size,
3166 bfd_boolean stubs_always_before_branch)
3167{
3168 asection **list = htab->input_list + htab->top_index;
3169
3170 do
3171 {
3172 asection *tail = *list;
3173
3174 if (tail == bfd_abs_section_ptr)
3175 continue;
3176
3177 while (tail != NULL)
3178 {
3179 asection *curr;
3180 asection *prev;
3181 bfd_size_type total;
3182
3183 curr = tail;
3184 total = tail->size;
3185 while ((prev = PREV_SEC (curr)) != NULL
3186 && ((total += curr->output_offset - prev->output_offset)
3187 < stub_group_size))
3188 curr = prev;
3189
3190 /* OK, the size from the start of CURR to the end is less
3191 than stub_group_size and thus can be handled by one stub
3192 section. (Or the tail section is itself larger than
3193 stub_group_size, in which case we may be toast.)
3194 We should really be keeping track of the total size of
3195 stubs added here, as stubs contribute to the final output
3196 section size. */
3197 do
3198 {
3199 prev = PREV_SEC (tail);
3200 /* Set up this stub group. */
3201 htab->stub_group[tail->id].link_sec = curr;
3202 }
3203 while (tail != curr && (tail = prev) != NULL);
3204
3205 /* But wait, there's more! Input sections up to stub_group_size
3206 bytes before the stub section can be handled by it too. */
3207 if (!stubs_always_before_branch)
3208 {
3209 total = 0;
3210 while (prev != NULL
3211 && ((total += tail->output_offset - prev->output_offset)
3212 < stub_group_size))
3213 {
3214 tail = prev;
3215 prev = PREV_SEC (tail);
3216 htab->stub_group[tail->id].link_sec = curr;
3217 }
3218 }
3219 tail = prev;
3220 }
3221 }
3222 while (list-- != htab->input_list);
3223
3224 free (htab->input_list);
3225}
3226
3227#undef PREV_SEC
3228
68fcca92
JW		 3229#define AARCH64_BITS(x, pos, n) (((x) >> (pos)) & ((1 << (n)) - 1))
3230
3231#define AARCH64_RT(insn) AARCH64_BITS (insn, 0, 5)
3232#define AARCH64_RT2(insn) AARCH64_BITS (insn, 10, 5)
3233#define AARCH64_RA(insn) AARCH64_BITS (insn, 10, 5)
3234#define AARCH64_RD(insn) AARCH64_BITS (insn, 0, 5)
3235#define AARCH64_RN(insn) AARCH64_BITS (insn, 5, 5)
3236#define AARCH64_RM(insn) AARCH64_BITS (insn, 16, 5)
3237
3238#define AARCH64_MAC(insn) (((insn) & 0xff000000) == 0x9b000000)
3239#define AARCH64_BIT(insn, n) AARCH64_BITS (insn, n, 1)
3240#define AARCH64_OP31(insn) AARCH64_BITS (insn, 21, 3)
3241#define AARCH64_ZR 0x1f
3242
3243/* All ld/st ops. See C4-182 of the ARM ARM. The encoding space for
3244 LD_PCREL, LDST_RO, LDST_UI and LDST_UIMM cover prefetch ops. */
3245
3246#define AARCH64_LD(insn) (AARCH64_BIT (insn, 22) == 1)
3247#define AARCH64_LDST(insn) (((insn) & 0x0a000000) == 0x08000000)
3248#define AARCH64_LDST_EX(insn) (((insn) & 0x3f000000) == 0x08000000)
3249#define AARCH64_LDST_PCREL(insn) (((insn) & 0x3b000000) == 0x18000000)
3250#define AARCH64_LDST_NAP(insn) (((insn) & 0x3b800000) == 0x28000000)
3251#define AARCH64_LDSTP_PI(insn) (((insn) & 0x3b800000) == 0x28800000)
3252#define AARCH64_LDSTP_O(insn) (((insn) & 0x3b800000) == 0x29000000)
3253#define AARCH64_LDSTP_PRE(insn) (((insn) & 0x3b800000) == 0x29800000)
3254#define AARCH64_LDST_UI(insn) (((insn) & 0x3b200c00) == 0x38000000)
3255#define AARCH64_LDST_PIIMM(insn) (((insn) & 0x3b200c00) == 0x38000400)
3256#define AARCH64_LDST_U(insn) (((insn) & 0x3b200c00) == 0x38000800)
3257#define AARCH64_LDST_PREIMM(insn) (((insn) & 0x3b200c00) == 0x38000c00)
3258#define AARCH64_LDST_RO(insn) (((insn) & 0x3b200c00) == 0x38200800)
3259#define AARCH64_LDST_UIMM(insn) (((insn) & 0x3b000000) == 0x39000000)
3260#define AARCH64_LDST_SIMD_M(insn) (((insn) & 0xbfbf0000) == 0x0c000000)
3261#define AARCH64_LDST_SIMD_M_PI(insn) (((insn) & 0xbfa00000) == 0x0c800000)
3262#define AARCH64_LDST_SIMD_S(insn) (((insn) & 0xbf9f0000) == 0x0d000000)
3263#define AARCH64_LDST_SIMD_S_PI(insn) (((insn) & 0xbf800000) == 0x0d800000)
3264
3d14faea
MS		 3265/* Classify an INSN if it is indeed a load/store.
3266
3267 Return TRUE if INSN is a LD/ST instruction otherwise return FALSE.
3268
3269 For scalar LD/ST instructions PAIR is FALSE, RT is returned and RT2
3270 is set equal to RT.
3271
2d0ca824 3272 For LD/ST pair instructions PAIR is TRUE, RT and RT2 are returned. */
68fcca92
JW		 3273
3274static bfd_boolean
3d14faea 3275aarch64_mem_op_p (uint32_t insn, unsigned int *rt, unsigned int *rt2,
68fcca92
JW		 3276 bfd_boolean *pair, bfd_boolean *load)
3277{
3278 uint32_t opcode;
3279 unsigned int r;
3280 uint32_t opc = 0;
3281 uint32_t v = 0;
3282 uint32_t opc_v = 0;
3283
3284 /* Bail out quickly if INSN doesn't fall into the the load-store
3285 encoding space. */
3286 if (!AARCH64_LDST (insn))
3287 return FALSE;
3288
3289 *pair = FALSE;
3290 *load = FALSE;
3291 if (AARCH64_LDST_EX (insn))
3292 {
3293 *rt = AARCH64_RT (insn);
3d14faea 3294 *rt2 = *rt;
68fcca92
JW		 3295 if (AARCH64_BIT (insn, 21) == 1)
3296 {
3297 *pair = TRUE;
3d14faea 3298 *rt2 = AARCH64_RT2 (insn);
68fcca92
JW		 3299 }
3300 *load = AARCH64_LD (insn);
3301 return TRUE;
3302 }
3303 else if (AARCH64_LDST_NAP (insn)
3304 || AARCH64_LDSTP_PI (insn)
3305 || AARCH64_LDSTP_O (insn)
3306 || AARCH64_LDSTP_PRE (insn))
3307 {
3308 *pair = TRUE;
3309 *rt = AARCH64_RT (insn);
3d14faea 3310 *rt2 = AARCH64_RT2 (insn);
68fcca92
JW		 3311 *load = AARCH64_LD (insn);
3312 return TRUE;
3313 }
3314 else if (AARCH64_LDST_PCREL (insn)
3315 || AARCH64_LDST_UI (insn)
3316 || AARCH64_LDST_PIIMM (insn)
3317 || AARCH64_LDST_U (insn)
3318 || AARCH64_LDST_PREIMM (insn)
3319 || AARCH64_LDST_RO (insn)
3320 || AARCH64_LDST_UIMM (insn))
3321 {
3322 *rt = AARCH64_RT (insn);
3d14faea 3323 *rt2 = *rt;
68fcca92
JW		 3324 if (AARCH64_LDST_PCREL (insn))
3325 *load = TRUE;
3326 opc = AARCH64_BITS (insn, 22, 2);
3327 v = AARCH64_BIT (insn, 26);
3328 opc_v = opc | (v << 2);
3329 *load = (opc_v == 1 || opc_v == 2 || opc_v == 3
3330 || opc_v == 5 || opc_v == 7);
3331 return TRUE;
3332 }
3333 else if (AARCH64_LDST_SIMD_M (insn)
3334 || AARCH64_LDST_SIMD_M_PI (insn))
3335 {
3336 *rt = AARCH64_RT (insn);
3337 *load = AARCH64_BIT (insn, 22);
3338 opcode = (insn >> 12) & 0xf;
3339 switch (opcode)
3340 {
3341 case 0:
3342 case 2:
3d14faea 3343 *rt2 = *rt + 3;
68fcca92
JW		 3344 break;
3345
3346 case 4:
3347 case 6:
3d14faea 3348 *rt2 = *rt + 2;
68fcca92
JW		 3349 break;
3350
3351 case 7:
3d14faea 3352 *rt2 = *rt;
68fcca92
JW		 3353 break;
3354
3355 case 8:
3356 case 10:
3d14faea 3357 *rt2 = *rt + 1;
68fcca92
JW		 3358 break;
3359
3360 default:
3361 return FALSE;
3362 }
3363 return TRUE;
3364 }
3365 else if (AARCH64_LDST_SIMD_S (insn)
3366 || AARCH64_LDST_SIMD_S_PI (insn))
3367 {
3368 *rt = AARCH64_RT (insn);
3369 r = (insn >> 21) & 1;
3370 *load = AARCH64_BIT (insn, 22);
3371 opcode = (insn >> 13) & 0x7;
3372 switch (opcode)
3373 {
3374 case 0:
3375 case 2:
3376 case 4:
3d14faea 3377 *rt2 = *rt + r;
68fcca92
JW		 3378 break;
3379
3380 case 1:
3381 case 3:
3382 case 5:
3d14faea 3383 *rt2 = *rt + (r == 0 ? 2 : 3);
68fcca92
JW		 3384 break;
3385
3386 case 6:
3d14faea 3387 *rt2 = *rt + r;
68fcca92
JW		 3388 break;
3389
3390 case 7:
3d14faea 3391 *rt2 = *rt + (r == 0 ? 2 : 3);
68fcca92
JW		 3392 break;
3393
3394 default:
3395 return FALSE;
3396 }
3397 return TRUE;
3398 }
3399
3400 return FALSE;
3401}
3402
3403/* Return TRUE if INSN is multiply-accumulate. */
3404
3405static bfd_boolean
3406aarch64_mlxl_p (uint32_t insn)
3407{
3408 uint32_t op31 = AARCH64_OP31 (insn);
3409
3410 if (AARCH64_MAC (insn)
3411 && (op31 == 0 || op31 == 1 || op31 == 5)
3412 /* Exclude MUL instructions which are encoded as a multiple accumulate
3413 with RA = XZR. */
3414 && AARCH64_RA (insn) != AARCH64_ZR)
3415 return TRUE;
3416
3417 return FALSE;
3418}
3419
3420/* Some early revisions of the Cortex-A53 have an erratum (835769) whereby
3421 it is possible for a 64-bit multiply-accumulate instruction to generate an
3422 incorrect result. The details are quite complex and hard to
3423 determine statically, since branches in the code may exist in some
3424 circumstances, but all cases end with a memory (load, store, or
3425 prefetch) instruction followed immediately by the multiply-accumulate
3426 operation. We employ a linker patching technique, by moving the potentially
3427 affected multiply-accumulate instruction into a patch region and replacing
3428 the original instruction with a branch to the patch. This function checks
3429 if INSN_1 is the memory operation followed by a multiply-accumulate
3430 operation (INSN_2). Return TRUE if an erratum sequence is found, FALSE
3431 if INSN_1 and INSN_2 are safe. */
3432
3433static bfd_boolean
3434aarch64_erratum_sequence (uint32_t insn_1, uint32_t insn_2)
3435{
3436 uint32_t rt;
3d14faea 3437 uint32_t rt2;
68fcca92
JW		 3438 uint32_t rn;
3439 uint32_t rm;
3440 uint32_t ra;
3441 bfd_boolean pair;
3442 bfd_boolean load;
3443
3444 if (aarch64_mlxl_p (insn_2)
3d14faea 3445 && aarch64_mem_op_p (insn_1, &rt, &rt2, &pair, &load))
68fcca92
JW		 3446 {
3447 /* Any SIMD memory op is independent of the subsequent MLA
3448 by definition of the erratum. */
3449 if (AARCH64_BIT (insn_1, 26))
3450 return TRUE;
3451
3452 /* If not SIMD, check for integer memory ops and MLA relationship. */
3453 rn = AARCH64_RN (insn_2);
3454 ra = AARCH64_RA (insn_2);
3455 rm = AARCH64_RM (insn_2);
3456
3457 /* If this is a load and there's a true(RAW) dependency, we are safe
3458 and this is not an erratum sequence. */
3459 if (load &&
3460 (rt == rn || rt == rm || rt == ra
3d14faea 3461 || (pair && (rt2 == rn || rt2 == rm || rt2 == ra))))
68fcca92
JW		 3462 return FALSE;
3463
3464 /* We conservatively put out stubs for all other cases (including
3465 writebacks). */
3466 return TRUE;
3467 }
3468
3469 return FALSE;
3470}
3471
520c7b56
JW		 3472/* Used to order a list of mapping symbols by address. */
3473
3474static int
3475elf_aarch64_compare_mapping (const void *a, const void *b)
3476{
3477 const elf_aarch64_section_map *amap = (const elf_aarch64_section_map *) a;
3478 const elf_aarch64_section_map *bmap = (const elf_aarch64_section_map *) b;
3479
3480 if (amap->vma > bmap->vma)
3481 return 1;
3482 else if (amap->vma < bmap->vma)
3483 return -1;
3484 else if (amap->type > bmap->type)
3485 /* Ensure results do not depend on the host qsort for objects with
3486 multiple mapping symbols at the same address by sorting on type
3487 after vma. */
3488 return 1;
3489 else if (amap->type < bmap->type)
3490 return -1;
3491 else
3492 return 0;
3493}
3494
2144188d 3495
35fee8b7
MS		 3496static char *
3497_bfd_aarch64_erratum_835769_stub_name (unsigned num_fixes)
3498{
3499 char *stub_name = (char *) bfd_malloc
3500 (strlen ("__erratum_835769_veneer_") + 16);
3501 sprintf (stub_name,"__erratum_835769_veneer_%d", num_fixes);
3502 return stub_name;
3503}
3504
4106101c 3505/* Scan for Cortex-A53 erratum 835769 sequence.
2144188d
MS		 3506
3507 Return TRUE else FALSE on abnormal termination. */
3508
68fcca92 3509static bfd_boolean
5421cc6e
MS		 3510_bfd_aarch64_erratum_835769_scan (bfd *input_bfd,
3511 struct bfd_link_info *info,
3512 unsigned int *num_fixes_p)
68fcca92
JW		 3513{
3514 asection *section;
3515 struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info);
68fcca92 3516 unsigned int num_fixes = *num_fixes_p;
68fcca92
JW		 3517
3518 if (htab == NULL)
2144188d 3519 return TRUE;
68fcca92
JW		 3520
3521 for (section = input_bfd->sections;
3522 section != NULL;
3523 section = section->next)
3524 {
3525 bfd_byte *contents = NULL;
3526 struct _aarch64_elf_section_data *sec_data;
3527 unsigned int span;
3528
3529 if (elf_section_type (section) != SHT_PROGBITS
3530 || (elf_section_flags (section) & SHF_EXECINSTR) == 0
3531 || (section->flags & SEC_EXCLUDE) != 0
3532 || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS)
3533 || (section->output_section == bfd_abs_section_ptr))
3534 continue;
3535
3536 if (elf_section_data (section)->this_hdr.contents != NULL)
3537 contents = elf_section_data (section)->this_hdr.contents;
3538 else if (! bfd_malloc_and_get_section (input_bfd, section, &contents))
2144188d 3539 return FALSE;
68fcca92
JW		 3540
3541 sec_data = elf_aarch64_section_data (section);
520c7b56
JW		 3542
3543 qsort (sec_data->map, sec_data->mapcount,
3544 sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping);
3545
68fcca92
JW		 3546 for (span = 0; span < sec_data->mapcount; span++)
3547 {
3548 unsigned int span_start = sec_data->map[span].vma;
3549 unsigned int span_end = ((span == sec_data->mapcount - 1)
3550 ? sec_data->map[0].vma + section->size
3551 : sec_data->map[span + 1].vma);
3552 unsigned int i;
3553 char span_type = sec_data->map[span].type;
3554
3555 if (span_type == 'd')
3556 continue;
3557
3558 for (i = span_start; i + 4 < span_end; i += 4)
3559 {
3560 uint32_t insn_1 = bfd_getl32 (contents + i);
3561 uint32_t insn_2 = bfd_getl32 (contents + i + 4);
3562
3563 if (aarch64_erratum_sequence (insn_1, insn_2))
3564 {
5421cc6e 3565 struct elf_aarch64_stub_hash_entry *stub_entry;
35fee8b7
MS		 3566 char *stub_name = _bfd_aarch64_erratum_835769_stub_name (num_fixes);
3567 if (! stub_name)
2144188d 3568 return FALSE;
68fcca92 3569
5421cc6e
MS		 3570 stub_entry = _bfd_aarch64_add_stub_entry_in_group (stub_name,
3571 section,
3572 htab);
3573 if (! stub_entry)
3574 return FALSE;
68fcca92 3575
5421cc6e
MS		 3576 stub_entry->stub_type = aarch64_stub_erratum_835769_veneer;
3577 stub_entry->target_section = section;
3578 stub_entry->target_value = i + 4;
3579 stub_entry->veneered_insn = insn_2;
3580 stub_entry->output_name = stub_name;
68fcca92
JW		 3581 num_fixes++;
3582 }
3583 }
3584 }
3585 if (elf_section_data (section)->this_hdr.contents == NULL)
3586 free (contents);
3587 }
3588
357d1523
MS		 3589 *num_fixes_p = num_fixes;
3590
2144188d 3591 return TRUE;
68fcca92
JW		 3592}
3593
13f622ec 3594
4106101c
MS		 3595/* Test if instruction INSN is ADRP. */
3596
3597static bfd_boolean
3598_bfd_aarch64_adrp_p (uint32_t insn)
3599{
3600 return ((insn & 0x9f000000) == 0x90000000);
3601}
3602
3603
3604/* Helper predicate to look for cortex-a53 erratum 843419 sequence 1. */
3605
3606static bfd_boolean
3607_bfd_aarch64_erratum_843419_sequence_p (uint32_t insn_1, uint32_t insn_2,
3608 uint32_t insn_3)
3609{
3610 uint32_t rt;
3611 uint32_t rt2;
3612 bfd_boolean pair;
3613 bfd_boolean load;
3614
3615 return (aarch64_mem_op_p (insn_2, &rt, &rt2, &pair, &load)
3616 && (!pair
3617 || (pair && !load))
3618 && AARCH64_LDST_UIMM (insn_3)
3619 && AARCH64_RN (insn_3) == AARCH64_RD (insn_1));
3620}
3621
3622
3623/* Test for the presence of Cortex-A53 erratum 843419 instruction sequence.
3624
3625 Return TRUE if section CONTENTS at offset I contains one of the
3626 erratum 843419 sequences, otherwise return FALSE. If a sequence is
3627 seen set P_VENEER_I to the offset of the final LOAD/STORE
3628 instruction in the sequence.
3629 */
3630
3631static bfd_boolean
3632_bfd_aarch64_erratum_843419_p (bfd_byte *contents, bfd_vma vma,
3633 bfd_vma i, bfd_vma span_end,
3634 bfd_vma *p_veneer_i)
3635{
3636 uint32_t insn_1 = bfd_getl32 (contents + i);
3637
3638 if (!_bfd_aarch64_adrp_p (insn_1))
3639 return FALSE;
3640
3641 if (span_end < i + 12)
3642 return FALSE;
3643
3644 uint32_t insn_2 = bfd_getl32 (contents + i + 4);
3645 uint32_t insn_3 = bfd_getl32 (contents + i + 8);
3646
3647 if ((vma & 0xfff) != 0xff8 && (vma & 0xfff) != 0xffc)
3648 return FALSE;
3649
3650 if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_3))
3651 {
3652 *p_veneer_i = i + 8;
3653 return TRUE;
3654 }
3655
3656 if (span_end < i + 16)
3657 return FALSE;
3658
3659 uint32_t insn_4 = bfd_getl32 (contents + i + 12);
3660
3661 if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_4))
3662 {
3663 *p_veneer_i = i + 12;
3664 return TRUE;
3665 }
3666
3667 return FALSE;
3668}
3669
3670
13f622ec
MS		 3671/* Resize all stub sections. */
3672
3673static void
3674_bfd_aarch64_resize_stubs (struct elf_aarch64_link_hash_table *htab)
3675{
3676 asection *section;
3677
3678 /* OK, we've added some stubs. Find out the new size of the
3679 stub sections. */
3680 for (section = htab->stub_bfd->sections;
3681 section != NULL; section = section->next)
3682 {
3683 /* Ignore non-stub sections. */
3684 if (!strstr (section->name, STUB_SUFFIX))
3685 continue;
3686 section->size = 0;
3687 }
3688
3689 bfd_hash_traverse (&htab->stub_hash_table, aarch64_size_one_stub, htab);
13f622ec 3690
61865519
MS		 3691 for (section = htab->stub_bfd->sections;
3692 section != NULL; section = section->next)
3693 {
3694 if (!strstr (section->name, STUB_SUFFIX))
3695 continue;
3696
3697 if (section->size)
3698 section->size += 4;
4106101c
MS		 3699
3700 /* Ensure all stub sections have a size which is a multiple of
3701 4096. This is important in order to ensure that the insertion
3702 of stub sections does not in itself move existing code around
3703 in such a way that new errata sequences are created. */
3704 if (htab->fix_erratum_843419)
3705 if (section->size)
3706 section->size = BFD_ALIGN (section->size, 0x1000);
3707 }
3708}
3709
3710
3711/* Construct an erratum 843419 workaround stub name.
3712 */
3713
3714static char *
3715_bfd_aarch64_erratum_843419_stub_name (asection *input_section,
3716 bfd_vma offset)
3717{
3718 const bfd_size_type len = 8 + 4 + 1 + 8 + 1 + 16 + 1;
3719 char *stub_name = bfd_malloc (len);
3720
3721 if (stub_name != NULL)
3722 snprintf (stub_name, len, "e843419@%04x_%08x_%" BFD_VMA_FMT "x",
3723 input_section->owner->id,
3724 input_section->id,
3725 offset);
3726 return stub_name;
3727}
3728
3729/* Build a stub_entry structure describing an 843419 fixup.
3730
3731 The stub_entry constructed is populated with the bit pattern INSN
3732 of the instruction located at OFFSET within input SECTION.
3733
3734 Returns TRUE on success. */
3735
3736static bfd_boolean
3737_bfd_aarch64_erratum_843419_fixup (uint32_t insn,
3738 bfd_vma adrp_offset,
3739 bfd_vma ldst_offset,
3740 asection *section,
3741 struct bfd_link_info *info)
3742{
3743 struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info);
3744 char *stub_name;
3745 struct elf_aarch64_stub_hash_entry *stub_entry;
3746
3747 stub_name = _bfd_aarch64_erratum_843419_stub_name (section, ldst_offset);
3748 stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name,
3749 FALSE, FALSE);
3750 if (stub_entry)
3751 {
3752 free (stub_name);
3753 return TRUE;
3754 }
3755
3756 /* We always place an 843419 workaround veneer in the stub section
3757 attached to the input section in which an erratum sequence has
3758 been found. This ensures that later in the link process (in
3759 elfNN_aarch64_write_section) when we copy the veneered
3760 instruction from the input section into the stub section the
3761 copied instruction will have had any relocations applied to it.
3762 If we placed workaround veneers in any other stub section then we
3763 could not assume that all relocations have been processed on the
3764 corresponding input section at the point we output the stub
3765 section.
3766 */
3767
3768 stub_entry = _bfd_aarch64_add_stub_entry_after (stub_name, section, htab);
3769 if (stub_entry == NULL)
3770 {
3771 free (stub_name);
3772 return FALSE;
3773 }
3774
3775 stub_entry->adrp_offset = adrp_offset;
3776 stub_entry->target_value = ldst_offset;
3777 stub_entry->target_section = section;
3778 stub_entry->stub_type = aarch64_stub_erratum_843419_veneer;
3779 stub_entry->veneered_insn = insn;
3780 stub_entry->output_name = stub_name;
3781
3782 return TRUE;
3783}
3784
3785
3786/* Scan an input section looking for the signature of erratum 843419.
3787
3788 Scans input SECTION in INPUT_BFD looking for erratum 843419
3789 signatures, for each signature found a stub_entry is created
3790 describing the location of the erratum for subsequent fixup.
3791
3792 Return TRUE on successful scan, FALSE on failure to scan.
3793 */
3794
3795static bfd_boolean
3796_bfd_aarch64_erratum_843419_scan (bfd *input_bfd, asection *section,
3797 struct bfd_link_info *info)
3798{
3799 struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info);
3800
3801 if (htab == NULL)
3802 return TRUE;
3803
3804 if (elf_section_type (section) != SHT_PROGBITS
3805 || (elf_section_flags (section) & SHF_EXECINSTR) == 0
3806 || (section->flags & SEC_EXCLUDE) != 0
3807 || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS)
3808 || (section->output_section == bfd_abs_section_ptr))
3809 return TRUE;
3810
3811 do
3812 {
3813 bfd_byte *contents = NULL;
3814 struct _aarch64_elf_section_data *sec_data;
3815 unsigned int span;
3816
3817 if (elf_section_data (section)->this_hdr.contents != NULL)
3818 contents = elf_section_data (section)->this_hdr.contents;
3819 else if (! bfd_malloc_and_get_section (input_bfd, section, &contents))
3820 return FALSE;
3821
3822 sec_data = elf_aarch64_section_data (section);
3823
3824 qsort (sec_data->map, sec_data->mapcount,
3825 sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping);
3826
3827 for (span = 0; span < sec_data->mapcount; span++)
3828 {
3829 unsigned int span_start = sec_data->map[span].vma;
3830 unsigned int span_end = ((span == sec_data->mapcount - 1)
3831 ? sec_data->map[0].vma + section->size
3832 : sec_data->map[span + 1].vma);
3833 unsigned int i;
3834 char span_type = sec_data->map[span].type;
3835
3836 if (span_type == 'd')
3837 continue;
3838
3839 for (i = span_start; i + 8 < span_end; i += 4)
3840 {
3841 bfd_vma vma = (section->output_section->vma
3842 + section->output_offset
3843 + i);
3844 bfd_vma veneer_i;
3845
3846 if (_bfd_aarch64_erratum_843419_p
3847 (contents, vma, i, span_end, &veneer_i))
3848 {
3849 uint32_t insn = bfd_getl32 (contents + veneer_i);
3850
3851 if (!_bfd_aarch64_erratum_843419_fixup (insn, i, veneer_i,
3852 section, info))
3853 return FALSE;
3854 }
3855 }
3856 }
3857
3858 if (elf_section_data (section)->this_hdr.contents == NULL)
3859 free (contents);
61865519 3860 }
4106101c
MS		 3861 while (0);
3862
3863 return TRUE;
61865519 3864}
13f622ec 3865
4106101c 3866
a06ea964
NC		 3867/* Determine and set the size of the stub section for a final link.
3868
3869 The basic idea here is to examine all the relocations looking for
3870 PC-relative calls to a target that is unreachable with a "bl"
3871 instruction. */
3872
3873bfd_boolean
cec5225b 3874elfNN_aarch64_size_stubs (bfd *output_bfd,
a06ea964
NC		 3875 bfd *stub_bfd,
3876 struct bfd_link_info *info,
3877 bfd_signed_vma group_size,
3878 asection * (*add_stub_section) (const char *,
3879 asection *),
3880 void (*layout_sections_again) (void))
3881{
3882 bfd_size_type stub_group_size;
3883 bfd_boolean stubs_always_before_branch;
5421cc6e 3884 bfd_boolean stub_changed = FALSE;
cec5225b 3885 struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info);
68fcca92 3886 unsigned int num_erratum_835769_fixes = 0;
a06ea964
NC		 3887
3888 /* Propagate mach to stub bfd, because it may not have been
3889 finalized when we created stub_bfd. */
3890 bfd_set_arch_mach (stub_bfd, bfd_get_arch (output_bfd),
3891 bfd_get_mach (output_bfd));
3892
3893 /* Stash our params away. */
3894 htab->stub_bfd = stub_bfd;
3895 htab->add_stub_section = add_stub_section;
3896 htab->layout_sections_again = layout_sections_again;
3897 stubs_always_before_branch = group_size < 0;
3898 if (group_size < 0)
3899 stub_group_size = -group_size;
3900 else
3901 stub_group_size = group_size;
3902
3903 if (stub_group_size == 1)
3904 {
3905 /* Default values. */
b9eead84 3906 /* AArch64 branch range is +-128MB. The value used is 1MB less. */
a06ea964
NC		 3907 stub_group_size = 127 * 1024 * 1024;
3908 }
3909
3910 group_sections (htab, stub_group_size, stubs_always_before_branch);
3911
4106101c
MS		 3912 (*htab->layout_sections_again) ();
3913
5421cc6e
MS		 3914 if (htab->fix_erratum_835769)
3915 {
3916 bfd *input_bfd;
3917
3918 for (input_bfd = info->input_bfds;
3919 input_bfd != NULL; input_bfd = input_bfd->link.next)
3920 if (!_bfd_aarch64_erratum_835769_scan (input_bfd, info,
3921 &num_erratum_835769_fixes))
3922 return FALSE;
3923
4106101c
MS		 3924 _bfd_aarch64_resize_stubs (htab);
3925 (*htab->layout_sections_again) ();
3926 }
3927
3928 if (htab->fix_erratum_843419)
3929 {
3930 bfd *input_bfd;
3931
3932 for (input_bfd = info->input_bfds;
3933 input_bfd != NULL;
3934 input_bfd = input_bfd->link.next)
3935 {
3936 asection *section;
3937
3938 for (section = input_bfd->sections;
3939 section != NULL;
3940 section = section->next)
3941 if (!_bfd_aarch64_erratum_843419_scan (input_bfd, section, info))
3942 return FALSE;
3943 }
3944
3945 _bfd_aarch64_resize_stubs (htab);
3946 (*htab->layout_sections_again) ();
5421cc6e
MS		 3947 }
3948
a06ea964
NC		 3949 while (1)
3950 {
3951 bfd *input_bfd;
a06ea964 3952
9b9971aa
MS		 3953 for (input_bfd = info->input_bfds;
3954 input_bfd != NULL; input_bfd = input_bfd->link.next)
a06ea964
NC		 3955 {
3956 Elf_Internal_Shdr *symtab_hdr;
3957 asection *section;
3958 Elf_Internal_Sym *local_syms = NULL;
3959
3960 /* We'll need the symbol table in a second. */
3961 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3962 if (symtab_hdr->sh_info == 0)
3963 continue;
3964
3965 /* Walk over each section attached to the input bfd. */
3966 for (section = input_bfd->sections;
3967 section != NULL; section = section->next)
3968 {
3969 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
3970
3971 /* If there aren't any relocs, then there's nothing more
3972 to do. */
3973 if ((section->flags & SEC_RELOC) == 0
3974 || section->reloc_count == 0
3975 || (section->flags & SEC_CODE) == 0)
3976 continue;
3977
3978 /* If this section is a link-once section that will be
3979 discarded, then don't create any stubs. */
3980 if (section->output_section == NULL
3981 || section->output_section->owner != output_bfd)
3982 continue;
3983
3984 /* Get the relocs. */
3985 internal_relocs
3986 = _bfd_elf_link_read_relocs (input_bfd, section, NULL,
3987 NULL, info->keep_memory);
3988 if (internal_relocs == NULL)
3989 goto error_ret_free_local;
3990
3991 /* Now examine each relocation. */
3992 irela = internal_relocs;
3993 irelaend = irela + section->reloc_count;
3994 for (; irela < irelaend; irela++)
3995 {
3996 unsigned int r_type, r_indx;
cec5225b
YZ		 3997 enum elf_aarch64_stub_type stub_type;
3998 struct elf_aarch64_stub_hash_entry *stub_entry;
a06ea964
NC		 3999 asection *sym_sec;
4000 bfd_vma sym_value;
4001 bfd_vma destination;
cec5225b 4002 struct elf_aarch64_link_hash_entry *hash;
a06ea964
NC		 4003 const char *sym_name;
4004 char *stub_name;
4005 const asection *id_sec;
4006 unsigned char st_type;
4007 bfd_size_type len;
4008
cec5225b
YZ		 4009 r_type = ELFNN_R_TYPE (irela->r_info);
4010 r_indx = ELFNN_R_SYM (irela->r_info);
a06ea964
NC		 4011
4012 if (r_type >= (unsigned int) R_AARCH64_end)
4013 {
4014 bfd_set_error (bfd_error_bad_value);
4015 error_ret_free_internal:
4016 if (elf_section_data (section)->relocs == NULL)
4017 free (internal_relocs);
4018 goto error_ret_free_local;
4019 }
4020
4021 /* Only look for stubs on unconditional branch and
4022 branch and link instructions. */
a6bb11b2
YZ		 4023 if (r_type != (unsigned int) AARCH64_R (CALL26)
4024 && r_type != (unsigned int) AARCH64_R (JUMP26))
a06ea964
NC		 4025 continue;
4026
4027 /* Now determine the call target, its name, value,
4028 section. */
4029 sym_sec = NULL;
4030 sym_value = 0;
4031 destination = 0;
4032 hash = NULL;
4033 sym_name = NULL;
4034 if (r_indx < symtab_hdr->sh_info)
4035 {
4036 /* It's a local symbol. */
4037 Elf_Internal_Sym *sym;
4038 Elf_Internal_Shdr *hdr;
4039
4040 if (local_syms == NULL)
4041 {
4042 local_syms
4043 = (Elf_Internal_Sym *) symtab_hdr->contents;
4044 if (local_syms == NULL)
4045 local_syms
4046 = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
4047 symtab_hdr->sh_info, 0,
4048 NULL, NULL, NULL);
4049 if (local_syms == NULL)
4050 goto error_ret_free_internal;
4051 }
4052
4053 sym = local_syms + r_indx;
4054 hdr = elf_elfsections (input_bfd)[sym->st_shndx];
4055 sym_sec = hdr->bfd_section;
4056 if (!sym_sec)
4057 /* This is an undefined symbol. It can never
4058 be resolved. */
4059 continue;
4060
4061 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
4062 sym_value = sym->st_value;
4063 destination = (sym_value + irela->r_addend
4064 + sym_sec->output_offset
4065 + sym_sec->output_section->vma);
4066 st_type = ELF_ST_TYPE (sym->st_info);
4067 sym_name
4068 = bfd_elf_string_from_elf_section (input_bfd,
4069 symtab_hdr->sh_link,
4070 sym->st_name);
4071 }
4072 else
4073 {
4074 int e_indx;
4075
4076 e_indx = r_indx - symtab_hdr->sh_info;
cec5225b 4077 hash = ((struct elf_aarch64_link_hash_entry *)
a06ea964
NC		 4078 elf_sym_hashes (input_bfd)[e_indx]);
4079
4080 while (hash->root.root.type == bfd_link_hash_indirect
4081 || hash->root.root.type == bfd_link_hash_warning)
cec5225b 4082 hash = ((struct elf_aarch64_link_hash_entry *)
a06ea964
NC		 4083 hash->root.root.u.i.link);
4084
4085 if (hash->root.root.type == bfd_link_hash_defined
4086 || hash->root.root.type == bfd_link_hash_defweak)
4087 {
cec5225b
YZ		 4088 struct elf_aarch64_link_hash_table *globals =
4089 elf_aarch64_hash_table (info);
a06ea964
NC		 4090 sym_sec = hash->root.root.u.def.section;
4091 sym_value = hash->root.root.u.def.value;
4092 /* For a destination in a shared library,
4093 use the PLT stub as target address to
4094 decide whether a branch stub is
4095 needed. */
4096 if (globals->root.splt != NULL && hash != NULL
4097 && hash->root.plt.offset != (bfd_vma) - 1)
4098 {
4099 sym_sec = globals->root.splt;
4100 sym_value = hash->root.plt.offset;
4101 if (sym_sec->output_section != NULL)
4102 destination = (sym_value
4103 + sym_sec->output_offset
4104 +
4105 sym_sec->output_section->vma);
4106 }
4107 else if (sym_sec->output_section != NULL)
4108 destination = (sym_value + irela->r_addend
4109 + sym_sec->output_offset
4110 + sym_sec->output_section->vma);
4111 }
4112 else if (hash->root.root.type == bfd_link_hash_undefined
4113 || (hash->root.root.type
4114 == bfd_link_hash_undefweak))
4115 {
4116 /* For a shared library, use the PLT stub as
4117 target address to decide whether a long
4118 branch stub is needed.
4119 For absolute code, they cannot be handled. */
cec5225b
YZ		 4120 struct elf_aarch64_link_hash_table *globals =
4121 elf_aarch64_hash_table (info);
a06ea964
NC		 4122
4123 if (globals->root.splt != NULL && hash != NULL
4124 && hash->root.plt.offset != (bfd_vma) - 1)
4125 {
4126 sym_sec = globals->root.splt;
4127 sym_value = hash->root.plt.offset;
4128 if (sym_sec->output_section != NULL)
4129 destination = (sym_value
4130 + sym_sec->output_offset
4131 +
4132 sym_sec->output_section->vma);
4133 }
4134 else
4135 continue;
4136 }
4137 else
4138 {
4139 bfd_set_error (bfd_error_bad_value);
4140 goto error_ret_free_internal;
4141 }
4142 st_type = ELF_ST_TYPE (hash->root.type);
4143 sym_name = hash->root.root.root.string;
4144 }
4145
4146 /* Determine what (if any) linker stub is needed. */
9a228467
JW		 4147 stub_type = aarch64_type_of_stub (section, irela, sym_sec,
4148 st_type, destination);
a06ea964
NC		 4149 if (stub_type == aarch64_stub_none)
4150 continue;
4151
4152 /* Support for grouping stub sections. */
4153 id_sec = htab->stub_group[section->id].link_sec;
4154
4155 /* Get the name of this stub. */
cec5225b 4156 stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, hash,
a06ea964
NC		 4157 irela);
4158 if (!stub_name)
4159 goto error_ret_free_internal;
4160
4161 stub_entry =
4162 aarch64_stub_hash_lookup (&htab->stub_hash_table,
4163 stub_name, FALSE, FALSE);
4164 if (stub_entry != NULL)
4165 {
4166 /* The proper stub has already been created. */
4167 free (stub_name);
4168 continue;
4169 }
4170
ef857521
MS		 4171 stub_entry = _bfd_aarch64_add_stub_entry_in_group
4172 (stub_name, section, htab);
a06ea964
NC		 4173 if (stub_entry == NULL)
4174 {
4175 free (stub_name);
4176 goto error_ret_free_internal;
4177 }
4178
2f340668 4179 stub_entry->target_value = sym_value + irela->r_addend;
a06ea964
NC		 4180 stub_entry->target_section = sym_sec;
4181 stub_entry->stub_type = stub_type;
4182 stub_entry->h = hash;
4183 stub_entry->st_type = st_type;
4184
4185 if (sym_name == NULL)
4186 sym_name = "unnamed";
4187 len = sizeof (STUB_ENTRY_NAME) + strlen (sym_name);
4188 stub_entry->output_name = bfd_alloc (htab->stub_bfd, len);
4189 if (stub_entry->output_name == NULL)
4190 {
4191 free (stub_name);
4192 goto error_ret_free_internal;
4193 }
4194
4195 snprintf (stub_entry->output_name, len, STUB_ENTRY_NAME,
4196 sym_name);
4197
4198 stub_changed = TRUE;
4199 }
4200
4201 /* We're done with the internal relocs, free them. */
4202 if (elf_section_data (section)->relocs == NULL)
4203 free (internal_relocs);
4204 }
4205 }
4206
4207 if (!stub_changed)
4208 break;
4209
13f622ec 4210 _bfd_aarch64_resize_stubs (htab);
a06ea964
NC		 4211
4212 /* Ask the linker to do its stuff. */
4213 (*htab->layout_sections_again) ();
4214 stub_changed = FALSE;
4215 }
4216
4217 return TRUE;
4218
4219error_ret_free_local:
4220 return FALSE;
4221}
4222
4223/* Build all the stubs associated with the current output file. The
4224 stubs are kept in a hash table attached to the main linker hash
4225 table. We also set up the .plt entries for statically linked PIC
4226 functions here. This function is called via aarch64_elf_finish in the
4227 linker. */
4228
4229bfd_boolean
cec5225b 4230elfNN_aarch64_build_stubs (struct bfd_link_info *info)
a06ea964
NC		 4231{
4232 asection *stub_sec;
4233 struct bfd_hash_table *table;
cec5225b 4234 struct elf_aarch64_link_hash_table *htab;
a06ea964 4235
cec5225b 4236 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 4237
4238 for (stub_sec = htab->stub_bfd->sections;
4239 stub_sec != NULL; stub_sec = stub_sec->next)
4240 {
4241 bfd_size_type size;
4242
4243 /* Ignore non-stub sections. */
4244 if (!strstr (stub_sec->name, STUB_SUFFIX))
4245 continue;
4246
4247 /* Allocate memory to hold the linker stubs. */
4248 size = stub_sec->size;
4249 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
4250 if (stub_sec->contents == NULL && size != 0)
4251 return FALSE;
4252 stub_sec->size = 0;
61865519
MS		 4253
4254 bfd_putl32 (0x14000000 | (size >> 2), stub_sec->contents);
4255 stub_sec->size += 4;
a06ea964
NC		 4256 }
4257
4258 /* Build the stubs as directed by the stub hash table. */
4259 table = &htab->stub_hash_table;
4260 bfd_hash_traverse (table, aarch64_build_one_stub, info);
4261
4262 return TRUE;
4263}
4264
4265
4266/* Add an entry to the code/data map for section SEC. */
4267
4268static void
cec5225b 4269elfNN_aarch64_section_map_add (asection *sec, char type, bfd_vma vma)
a06ea964
NC		 4270{
4271 struct _aarch64_elf_section_data *sec_data =
cec5225b 4272 elf_aarch64_section_data (sec);
a06ea964
NC		 4273 unsigned int newidx;
4274
4275 if (sec_data->map == NULL)
4276 {
cec5225b 4277 sec_data->map = bfd_malloc (sizeof (elf_aarch64_section_map));
a06ea964
NC		 4278 sec_data->mapcount = 0;
4279 sec_data->mapsize = 1;
4280 }
4281
4282 newidx = sec_data->mapcount++;
4283
4284 if (sec_data->mapcount > sec_data->mapsize)
4285 {
4286 sec_data->mapsize *= 2;
4287 sec_data->map = bfd_realloc_or_free
cec5225b 4288 (sec_data->map, sec_data->mapsize * sizeof (elf_aarch64_section_map));
a06ea964
NC		 4289 }
4290
4291 if (sec_data->map)
4292 {
4293 sec_data->map[newidx].vma = vma;
4294 sec_data->map[newidx].type = type;
4295 }
4296}
4297
4298
4299/* Initialise maps of insn/data for input BFDs. */
4300void
cec5225b 4301bfd_elfNN_aarch64_init_maps (bfd *abfd)
a06ea964
NC		 4302{
4303 Elf_Internal_Sym *isymbuf;
4304 Elf_Internal_Shdr *hdr;
4305 unsigned int i, localsyms;
4306
4307 /* Make sure that we are dealing with an AArch64 elf binary. */
4308 if (!is_aarch64_elf (abfd))
4309 return;
4310
4311 if ((abfd->flags & DYNAMIC) != 0)
68fcca92 4312 return;
a06ea964
NC		 4313
4314 hdr = &elf_symtab_hdr (abfd);
4315 localsyms = hdr->sh_info;
4316
4317 /* Obtain a buffer full of symbols for this BFD. The hdr->sh_info field
4318 should contain the number of local symbols, which should come before any
4319 global symbols. Mapping symbols are always local. */
4320 isymbuf = bfd_elf_get_elf_syms (abfd, hdr, localsyms, 0, NULL, NULL, NULL);
4321
4322 /* No internal symbols read? Skip this BFD. */
4323 if (isymbuf == NULL)
4324 return;
4325
4326 for (i = 0; i < localsyms; i++)
4327 {
4328 Elf_Internal_Sym *isym = &isymbuf[i];
4329 asection *sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
4330 const char *name;
4331
4332 if (sec != NULL && ELF_ST_BIND (isym->st_info) == STB_LOCAL)
4333 {
4334 name = bfd_elf_string_from_elf_section (abfd,
4335 hdr->sh_link,
4336 isym->st_name);
4337
4338 if (bfd_is_aarch64_special_symbol_name
4339 (name, BFD_AARCH64_SPECIAL_SYM_TYPE_MAP))
cec5225b 4340 elfNN_aarch64_section_map_add (sec, name[1], isym->st_value);
a06ea964
NC		 4341 }
4342 }
4343}
4344
4345/* Set option values needed during linking. */
4346void
cec5225b 4347bfd_elfNN_aarch64_set_options (struct bfd *output_bfd,
a06ea964
NC		 4348 struct bfd_link_info *link_info,
4349 int no_enum_warn,
68fcca92 4350 int no_wchar_warn, int pic_veneer,
4106101c 4351 int fix_erratum_835769,
1f56df9d
JW		 4352 int fix_erratum_843419,
4353 int no_apply_dynamic_relocs)
a06ea964 4354{
cec5225b 4355 struct elf_aarch64_link_hash_table *globals;
a06ea964 4356
cec5225b 4357 globals = elf_aarch64_hash_table (link_info);
a06ea964 4358 globals->pic_veneer = pic_veneer;
68fcca92 4359 globals->fix_erratum_835769 = fix_erratum_835769;
4106101c
MS		 4360 globals->fix_erratum_843419 = fix_erratum_843419;
4361 globals->fix_erratum_843419_adr = TRUE;
1f56df9d 4362 globals->no_apply_dynamic_relocs = no_apply_dynamic_relocs;
a06ea964
NC		 4363
4364 BFD_ASSERT (is_aarch64_elf (output_bfd));
4365 elf_aarch64_tdata (output_bfd)->no_enum_size_warning = no_enum_warn;
4366 elf_aarch64_tdata (output_bfd)->no_wchar_size_warning = no_wchar_warn;
4367}
4368
a06ea964
NC		 4369static bfd_vma
4370aarch64_calculate_got_entry_vma (struct elf_link_hash_entry *h,
cec5225b 4371 struct elf_aarch64_link_hash_table
a06ea964
NC		 4372 *globals, struct bfd_link_info *info,
4373 bfd_vma value, bfd *output_bfd,
4374 bfd_boolean *unresolved_reloc_p)
4375{
4376 bfd_vma off = (bfd_vma) - 1;
4377 asection *basegot = globals->root.sgot;
4378 bfd_boolean dyn = globals->root.dynamic_sections_created;
4379
4380 if (h != NULL)
4381 {
a6bb11b2 4382 BFD_ASSERT (basegot != NULL);
a06ea964
NC		 4383 off = h->got.offset;
4384 BFD_ASSERT (off != (bfd_vma) - 1);
0e1862bb
L		 4385 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
4386 || (bfd_link_pic (info)
a06ea964
NC		 4387 && SYMBOL_REFERENCES_LOCAL (info, h))
4388 || (ELF_ST_VISIBILITY (h->other)
4389 && h->root.type == bfd_link_hash_undefweak))
4390 {
4391 /* This is actually a static link, or it is a -Bsymbolic link
4392 and the symbol is defined locally. We must initialize this
4393 entry in the global offset table. Since the offset must
a6bb11b2
YZ		 4394 always be a multiple of 8 (4 in the case of ILP32), we use
4395 the least significant bit to record whether we have
4396 initialized it already.
a06ea964
NC		 4397 When doing a dynamic link, we create a .rel(a).got relocation
4398 entry to initialize the value. This is done in the
4399 finish_dynamic_symbol routine. */
4400 if ((off & 1) != 0)
4401 off &= ~1;
4402 else
4403 {
cec5225b 4404 bfd_put_NN (output_bfd, value, basegot->contents + off);
a06ea964
NC		 4405 h->got.offset |= 1;
4406 }
4407 }
4408 else
4409 *unresolved_reloc_p = FALSE;
4410
4411 off = off + basegot->output_section->vma + basegot->output_offset;
4412 }
4413
4414 return off;
4415}
4416
4417/* Change R_TYPE to a more efficient access model where possible,
4418 return the new reloc type. */
4419
a6bb11b2
YZ		 4420static bfd_reloc_code_real_type
4421aarch64_tls_transition_without_check (bfd_reloc_code_real_type r_type,
a06ea964
NC		 4422 struct elf_link_hash_entry *h)
4423{
4424 bfd_boolean is_local = h == NULL;
a6bb11b2 4425
a06ea964
NC		 4426 switch (r_type)
4427 {
a6bb11b2 4428 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
ce336788 4429 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
a6bb11b2
YZ		 4430 return (is_local
4431 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1
4432 : BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21);
4433
389b8029
MS		 4434 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
4435 return (is_local
4436 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC
4437 : r_type);
4438
1ada945d
MS		 4439 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
4440 return (is_local
4441 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1
4442 : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19);
4443
0484b454
RL		 4444 case BFD_RELOC_AARCH64_TLSDESC_LDR:
4445 return (is_local
4446 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC
4447 : BFD_RELOC_AARCH64_NONE);
4448
4449 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
4450 return (is_local
4451 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC
4452 : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC);
4453
4454 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
4455 return (is_local
4456 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2
4457 : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1);
4458
a6bb11b2 4459 case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC:
ce336788 4460 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a6bb11b2
YZ		 4461 return (is_local
4462 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC
4463 : BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC);
4464
4465 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
4466 return is_local ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 : r_type;
4467
4468 case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC:
4469 return is_local ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC : r_type;
4470
043bf05a
MS		 4471 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
4472 return r_type;
4473
3c12b054
MS		 4474 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
4475 return (is_local
4476 ? BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12
4477 : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19);
4478
0484b454 4479 case BFD_RELOC_AARCH64_TLSDESC_ADD:
f955cccf 4480 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 4481 case BFD_RELOC_AARCH64_TLSDESC_CALL:
a06ea964 4482 /* Instructions with these relocations will become NOPs. */
a6bb11b2
YZ		 4483 return BFD_RELOC_AARCH64_NONE;
4484
259364ad
JW		 4485 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
4486 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
4487 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
4488 return is_local ? BFD_RELOC_AARCH64_NONE : r_type;
4489
ac734732
RL		 4490#if ARCH_SIZE == 64
4491 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
4492 return is_local
4493 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC
4494 : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC;
4495
4496 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
4497 return is_local
4498 ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2
4499 : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1;
4500#endif
4501
a6bb11b2
YZ		 4502 default:
4503 break;
a06ea964
NC		 4504 }
4505
4506 return r_type;
4507}
4508
4509static unsigned int
a6bb11b2 4510aarch64_reloc_got_type (bfd_reloc_code_real_type r_type)
a06ea964
NC		 4511{
4512 switch (r_type)
4513 {
a6bb11b2
YZ		 4514 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
4515 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 4516 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
ce336788 4517 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
a2e1db00 4518 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
99ad26cb 4519 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
ce336788 4520 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
dc8008f5 4521 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 4522 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
a06ea964
NC		 4523 return GOT_NORMAL;
4524
ce336788 4525 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a6bb11b2 4526 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 4527 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
7ba7cfe4 4528 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 4529 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
73f925cc 4530 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 4531 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 4532 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
a06ea964
NC		 4533 return GOT_TLS_GD;
4534
0484b454 4535 case BFD_RELOC_AARCH64_TLSDESC_ADD:
f955cccf 4536 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 4537 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 4538 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
a6bb11b2 4539 case BFD_RELOC_AARCH64_TLSDESC_CALL:
a6bb11b2 4540 case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
f955cccf 4541 case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12:
1ada945d 4542 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
0484b454
RL		 4543 case BFD_RELOC_AARCH64_TLSDESC_LDR:
4544 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
4545 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
a06ea964
NC		 4546 return GOT_TLSDESC_GD;
4547
a6bb11b2 4548 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a6bb11b2 4549 case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
ce336788 4550 case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
043bf05a 4551 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
3b957e5b
RL		 4552 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
4553 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
a06ea964
NC		 4554 return GOT_TLS_IE;
4555
a6bb11b2
YZ		 4556 default:
4557 break;
a06ea964
NC		 4558 }
4559 return GOT_UNKNOWN;
4560}
4561
4562static bfd_boolean
4563aarch64_can_relax_tls (bfd *input_bfd,
4564 struct bfd_link_info *info,
a6bb11b2 4565 bfd_reloc_code_real_type r_type,
a06ea964
NC		 4566 struct elf_link_hash_entry *h,
4567 unsigned long r_symndx)
4568{
4569 unsigned int symbol_got_type;
4570 unsigned int reloc_got_type;
4571
9331eea1 4572 if (! IS_AARCH64_TLS_RELAX_RELOC (r_type))
a06ea964
NC		 4573 return FALSE;
4574
cec5225b 4575 symbol_got_type = elfNN_aarch64_symbol_got_type (h, input_bfd, r_symndx);
a06ea964
NC		 4576 reloc_got_type = aarch64_reloc_got_type (r_type);
4577
4578 if (symbol_got_type == GOT_TLS_IE && GOT_TLS_GD_ANY_P (reloc_got_type))
4579 return TRUE;
4580
0e1862bb 4581 if (bfd_link_pic (info))
a06ea964
NC		 4582 return FALSE;
4583
4584 if (h && h->root.type == bfd_link_hash_undefweak)
4585 return FALSE;
4586
4587 return TRUE;
4588}
4589
a6bb11b2
YZ		 4590/* Given the relocation code R_TYPE, return the relaxed bfd reloc
4591 enumerator. */
4592
4593static bfd_reloc_code_real_type
a06ea964
NC		 4594aarch64_tls_transition (bfd *input_bfd,
4595 struct bfd_link_info *info,
4596 unsigned int r_type,
4597 struct elf_link_hash_entry *h,
4598 unsigned long r_symndx)
4599{
a6bb11b2
YZ		 4600 bfd_reloc_code_real_type bfd_r_type
4601 = elfNN_aarch64_bfd_reloc_from_type (r_type);
a06ea964 4602
a6bb11b2
YZ		 4603 if (! aarch64_can_relax_tls (input_bfd, info, bfd_r_type, h, r_symndx))
4604 return bfd_r_type;
4605
4606 return aarch64_tls_transition_without_check (bfd_r_type, h);
a06ea964
NC		 4607}
4608
4609/* Return the base VMA address which should be subtracted from real addresses
a6bb11b2 4610 when resolving R_AARCH64_TLS_DTPREL relocation. */
a06ea964
NC		 4611
4612static bfd_vma
4613dtpoff_base (struct bfd_link_info *info)
4614{
4615 /* If tls_sec is NULL, we should have signalled an error already. */
4616 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
4617 return elf_hash_table (info)->tls_sec->vma;
4618}
4619
a06ea964
NC		 4620/* Return the base VMA address which should be subtracted from real addresses
4621 when resolving R_AARCH64_TLS_GOTTPREL64 relocations. */
4622
4623static bfd_vma
4624tpoff_base (struct bfd_link_info *info)
4625{
4626 struct elf_link_hash_table *htab = elf_hash_table (info);
4627
4628 /* If tls_sec is NULL, we should have signalled an error already. */
ac21917f 4629 BFD_ASSERT (htab->tls_sec != NULL);
a06ea964
NC		 4630
4631 bfd_vma base = align_power ((bfd_vma) TCB_SIZE,
4632 htab->tls_sec->alignment_power);
4633 return htab->tls_sec->vma - base;
4634}
4635
4636static bfd_vma *
4637symbol_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h,
4638 unsigned long r_symndx)
4639{
4640 /* Calculate the address of the GOT entry for symbol
4641 referred to in h. */
4642 if (h != NULL)
4643 return &h->got.offset;
4644 else
4645 {
4646 /* local symbol */
4647 struct elf_aarch64_local_symbol *l;
4648
cec5225b 4649 l = elf_aarch64_locals (input_bfd);
a06ea964
NC		 4650 return &l[r_symndx].got_offset;
4651 }
4652}
4653
4654static void
4655symbol_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h,
4656 unsigned long r_symndx)
4657{
4658 bfd_vma *p;
4659 p = symbol_got_offset_ref (input_bfd, h, r_symndx);
4660 *p |= 1;
4661}
4662
4663static int
4664symbol_got_offset_mark_p (bfd *input_bfd, struct elf_link_hash_entry *h,
4665 unsigned long r_symndx)
4666{
4667 bfd_vma value;
4668 value = * symbol_got_offset_ref (input_bfd, h, r_symndx);
4669 return value & 1;
4670}
4671
4672static bfd_vma
4673symbol_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h,
4674 unsigned long r_symndx)
4675{
4676 bfd_vma value;
4677 value = * symbol_got_offset_ref (input_bfd, h, r_symndx);
4678 value &= ~1;
4679 return value;
4680}
4681
4682static bfd_vma *
4683symbol_tlsdesc_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h,
4684 unsigned long r_symndx)
4685{
4686 /* Calculate the address of the GOT entry for symbol
4687 referred to in h. */
4688 if (h != NULL)
4689 {
cec5225b
YZ		 4690 struct elf_aarch64_link_hash_entry *eh;
4691 eh = (struct elf_aarch64_link_hash_entry *) h;
a06ea964
NC		 4692 return &eh->tlsdesc_got_jump_table_offset;
4693 }
4694 else
4695 {
4696 /* local symbol */
4697 struct elf_aarch64_local_symbol *l;
4698
cec5225b 4699 l = elf_aarch64_locals (input_bfd);
a06ea964
NC		 4700 return &l[r_symndx].tlsdesc_got_jump_table_offset;
4701 }
4702}
4703
4704static void
4705symbol_tlsdesc_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h,
4706 unsigned long r_symndx)
4707{
4708 bfd_vma *p;
4709 p = symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx);
4710 *p |= 1;
4711}
4712
4713static int
4714symbol_tlsdesc_got_offset_mark_p (bfd *input_bfd,
4715 struct elf_link_hash_entry *h,
4716 unsigned long r_symndx)
4717{
4718 bfd_vma value;
4719 value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx);
4720 return value & 1;
4721}
4722
4723static bfd_vma
4724symbol_tlsdesc_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h,
4725 unsigned long r_symndx)
4726{
4727 bfd_vma value;
4728 value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx);
4729 value &= ~1;
4730 return value;
4731}
4732
68fcca92
JW		 4733/* Data for make_branch_to_erratum_835769_stub(). */
4734
4735struct erratum_835769_branch_to_stub_data
4736{
4106101c 4737 struct bfd_link_info *info;
68fcca92
JW		 4738 asection *output_section;
4739 bfd_byte *contents;
4740};
4741
4742/* Helper to insert branches to erratum 835769 stubs in the right
4743 places for a particular section. */
4744
4745static bfd_boolean
4746make_branch_to_erratum_835769_stub (struct bfd_hash_entry *gen_entry,
4747 void *in_arg)
4748{
4749 struct elf_aarch64_stub_hash_entry *stub_entry;
4750 struct erratum_835769_branch_to_stub_data *data;
4751 bfd_byte *contents;
4752 unsigned long branch_insn = 0;
4753 bfd_vma veneered_insn_loc, veneer_entry_loc;
4754 bfd_signed_vma branch_offset;
4755 unsigned int target;
4756 bfd *abfd;
4757
4758 stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry;
4759 data = (struct erratum_835769_branch_to_stub_data *) in_arg;
4760
4761 if (stub_entry->target_section != data->output_section
4762 || stub_entry->stub_type != aarch64_stub_erratum_835769_veneer)
4763 return TRUE;
4764
4765 contents = data->contents;
4766 veneered_insn_loc = stub_entry->target_section->output_section->vma
4767 + stub_entry->target_section->output_offset
4768 + stub_entry->target_value;
4769 veneer_entry_loc = stub_entry->stub_sec->output_section->vma
4770 + stub_entry->stub_sec->output_offset
4771 + stub_entry->stub_offset;
4772 branch_offset = veneer_entry_loc - veneered_insn_loc;
4773
4774 abfd = stub_entry->target_section->owner;
4775 if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc))
4eca0228
AM		 4776 _bfd_error_handler
4777 (_("%B: error: Erratum 835769 stub out "
4778 "of range (input file too large)"), abfd);
68fcca92
JW		 4779
4780 target = stub_entry->target_value;
4781 branch_insn = 0x14000000;
4782 branch_offset >>= 2;
4783 branch_offset &= 0x3ffffff;
4784 branch_insn |= branch_offset;
4785 bfd_putl32 (branch_insn, &contents[target]);
4786
4787 return TRUE;
4788}
4789
4106101c
MS		 4790
4791static bfd_boolean
4792_bfd_aarch64_erratum_843419_branch_to_stub (struct bfd_hash_entry *gen_entry,
4793 void *in_arg)
4794{
4795 struct elf_aarch64_stub_hash_entry *stub_entry
4796 = (struct elf_aarch64_stub_hash_entry *) gen_entry;
4797 struct erratum_835769_branch_to_stub_data *data
4798 = (struct erratum_835769_branch_to_stub_data *) in_arg;
4799 struct bfd_link_info *info;
4800 struct elf_aarch64_link_hash_table *htab;
4801 bfd_byte *contents;
4802 asection *section;
4803 bfd *abfd;
4804 bfd_vma place;
4805 uint32_t insn;
4806
4807 info = data->info;
4808 contents = data->contents;
4809 section = data->output_section;
4810
4811 htab = elf_aarch64_hash_table (info);
4812
4813 if (stub_entry->target_section != section
4814 || stub_entry->stub_type != aarch64_stub_erratum_843419_veneer)
4815 return TRUE;
4816
4817 insn = bfd_getl32 (contents + stub_entry->target_value);
4818 bfd_putl32 (insn,
4819 stub_entry->stub_sec->contents + stub_entry->stub_offset);
4820
4821 place = (section->output_section->vma + section->output_offset
4822 + stub_entry->adrp_offset);
4823 insn = bfd_getl32 (contents + stub_entry->adrp_offset);
4824
4825 if ((insn & AARCH64_ADRP_OP_MASK) != AARCH64_ADRP_OP)
4826 abort ();
4827
4828 bfd_signed_vma imm =
4829 (_bfd_aarch64_sign_extend
4830 ((bfd_vma) _bfd_aarch64_decode_adrp_imm (insn) << 12, 33)
4831 - (place & 0xfff));
4832
4833 if (htab->fix_erratum_843419_adr
4834 && (imm >= AARCH64_MIN_ADRP_IMM && imm <= AARCH64_MAX_ADRP_IMM))
4835 {
4836 insn = (_bfd_aarch64_reencode_adr_imm (AARCH64_ADR_OP, imm)
4837 | AARCH64_RT (insn));
4838 bfd_putl32 (insn, contents + stub_entry->adrp_offset);
4839 }
4840 else
4841 {
4842 bfd_vma veneered_insn_loc;
4843 bfd_vma veneer_entry_loc;
4844 bfd_signed_vma branch_offset;
4845 uint32_t branch_insn;
4846
4847 veneered_insn_loc = stub_entry->target_section->output_section->vma
4848 + stub_entry->target_section->output_offset
4849 + stub_entry->target_value;
4850 veneer_entry_loc = stub_entry->stub_sec->output_section->vma
4851 + stub_entry->stub_sec->output_offset
4852 + stub_entry->stub_offset;
4853 branch_offset = veneer_entry_loc - veneered_insn_loc;
4854
4855 abfd = stub_entry->target_section->owner;
4856 if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc))
4eca0228 4857 _bfd_error_handler
4106101c
MS		 4858 (_("%B: error: Erratum 843419 stub out "
4859 "of range (input file too large)"), abfd);
4860
4861 branch_insn = 0x14000000;
4862 branch_offset >>= 2;
4863 branch_offset &= 0x3ffffff;
4864 branch_insn |= branch_offset;
4865 bfd_putl32 (branch_insn, contents + stub_entry->target_value);
4866 }
4867 return TRUE;
4868}
4869
4870
68fcca92
JW		 4871static bfd_boolean
4872elfNN_aarch64_write_section (bfd *output_bfd ATTRIBUTE_UNUSED,
4873 struct bfd_link_info *link_info,
4874 asection *sec,
4875 bfd_byte *contents)
4876
4877{
4878 struct elf_aarch64_link_hash_table *globals =
f872121a 4879 elf_aarch64_hash_table (link_info);
68fcca92
JW		 4880
4881 if (globals == NULL)
4882 return FALSE;
4883
4884 /* Fix code to point to erratum 835769 stubs. */
4885 if (globals->fix_erratum_835769)
4886 {
4887 struct erratum_835769_branch_to_stub_data data;
4888
4106101c 4889 data.info = link_info;
68fcca92
JW		 4890 data.output_section = sec;
4891 data.contents = contents;
4892 bfd_hash_traverse (&globals->stub_hash_table,
4893 make_branch_to_erratum_835769_stub, &data);
4894 }
4895
4106101c
MS		 4896 if (globals->fix_erratum_843419)
4897 {
4898 struct erratum_835769_branch_to_stub_data data;
4899
4900 data.info = link_info;
4901 data.output_section = sec;
4902 data.contents = contents;
4903 bfd_hash_traverse (&globals->stub_hash_table,
4904 _bfd_aarch64_erratum_843419_branch_to_stub, &data);
4905 }
4906
68fcca92
JW		 4907 return FALSE;
4908}
4909
2aff25ba
JW		 4910/* Return TRUE if RELOC is a relocation against the base of GOT table. */
4911
4912static bfd_boolean
4913aarch64_relocation_aginst_gp_p (bfd_reloc_code_real_type reloc)
4914{
4915 return (reloc == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14
4916 || reloc == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15
4917 || reloc == BFD_RELOC_AARCH64_LD64_GOTOFF_LO15
4918 || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC
4919 || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G1);
4920}
4921
4e7fbb34
JW		 4922/* Perform a relocation as part of a final link. The input relocation type
4923 should be TLS relaxed. */
4924
a06ea964 4925static bfd_reloc_status_type
cec5225b 4926elfNN_aarch64_final_link_relocate (reloc_howto_type *howto,
a06ea964
NC		 4927 bfd *input_bfd,
4928 bfd *output_bfd,
4929 asection *input_section,
4930 bfd_byte *contents,
4931 Elf_Internal_Rela *rel,
4932 bfd_vma value,
4933 struct bfd_link_info *info,
4934 asection *sym_sec,
4935 struct elf_link_hash_entry *h,
4936 bfd_boolean *unresolved_reloc_p,
4937 bfd_boolean save_addend,
1419bbe5
WN		 4938 bfd_vma *saved_addend,
4939 Elf_Internal_Sym *sym)
a06ea964 4940{
1419bbe5 4941 Elf_Internal_Shdr *symtab_hdr;
a06ea964 4942 unsigned int r_type = howto->type;
a6bb11b2
YZ		 4943 bfd_reloc_code_real_type bfd_r_type
4944 = elfNN_aarch64_bfd_reloc_from_howto (howto);
a06ea964
NC		 4945 unsigned long r_symndx;
4946 bfd_byte *hit_data = contents + rel->r_offset;
b53b1bed 4947 bfd_vma place, off;
a06ea964 4948 bfd_signed_vma signed_addend;
cec5225b 4949 struct elf_aarch64_link_hash_table *globals;
a06ea964 4950 bfd_boolean weak_undef_p;
b53b1bed 4951 asection *base_got;
a06ea964 4952
cec5225b 4953 globals = elf_aarch64_hash_table (info);
a06ea964 4954
1419bbe5
WN		 4955 symtab_hdr = &elf_symtab_hdr (input_bfd);
4956
a06ea964
NC		 4957 BFD_ASSERT (is_aarch64_elf (input_bfd));
4958
cec5225b 4959 r_symndx = ELFNN_R_SYM (rel->r_info);
a06ea964 4960
a06ea964
NC		 4961 place = input_section->output_section->vma
4962 + input_section->output_offset + rel->r_offset;
4963
4964 /* Get addend, accumulating the addend for consecutive relocs
4965 which refer to the same offset. */
4966 signed_addend = saved_addend ? *saved_addend : 0;
4967 signed_addend += rel->r_addend;
4968
4969 weak_undef_p = (h ? h->root.type == bfd_link_hash_undefweak
4970 : bfd_is_und_section (sym_sec));
a6bb11b2 4971
1419bbe5
WN		 4972 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle
4973 it here if it is defined in a non-shared object. */
4974 if (h != NULL
4975 && h->type == STT_GNU_IFUNC
4976 && h->def_regular)
4977 {
4978 asection *plt;
4979 const char *name;
99ad26cb 4980 bfd_vma addend = 0;
1419bbe5
WN		 4981
4982 if ((input_section->flags & SEC_ALLOC) == 0
4983 || h->plt.offset == (bfd_vma) -1)
4984 abort ();
4985
4986 /* STT_GNU_IFUNC symbol must go through PLT. */
4987 plt = globals->root.splt ? globals->root.splt : globals->root.iplt;
4988 value = (plt->output_section->vma + plt->output_offset + h->plt.offset);
4989
4990 switch (bfd_r_type)
4991 {
4992 default:
4993 if (h->root.root.string)
4994 name = h->root.root.string;
4995 else
4996 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4997 NULL);
4eca0228 4998 _bfd_error_handler
695344c0 4999 /* xgettext:c-format */
1419bbe5
WN		 5000 (_("%B: relocation %s against STT_GNU_IFUNC "
5001 "symbol `%s' isn't handled by %s"), input_bfd,
5002 howto->name, name, __FUNCTION__);
5003 bfd_set_error (bfd_error_bad_value);
5004 return FALSE;
5005
5006 case BFD_RELOC_AARCH64_NN:
5007 if (rel->r_addend != 0)
5008 {
5009 if (h->root.root.string)
5010 name = h->root.root.string;
5011 else
5012 name = bfd_elf_sym_name (input_bfd, symtab_hdr,
5013 sym, NULL);
4eca0228 5014 _bfd_error_handler
695344c0 5015 /* xgettext:c-format */
1419bbe5
WN		 5016 (_("%B: relocation %s against STT_GNU_IFUNC "
5017 "symbol `%s' has non-zero addend: %d"),
5018 input_bfd, howto->name, name, rel->r_addend);
5019 bfd_set_error (bfd_error_bad_value);
5020 return FALSE;
5021 }
5022
5023 /* Generate dynamic relocation only when there is a
5024 non-GOT reference in a shared object. */
0e1862bb 5025 if (bfd_link_pic (info) && h->non_got_ref)
1419bbe5
WN		 5026 {
5027 Elf_Internal_Rela outrel;
5028 asection *sreloc;
5029
5030 /* Need a dynamic relocation to get the real function
5031 address. */
5032 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
5033 info,
5034 input_section,
5035 rel->r_offset);
5036 if (outrel.r_offset == (bfd_vma) -1
5037 || outrel.r_offset == (bfd_vma) -2)
5038 abort ();
5039
5040 outrel.r_offset += (input_section->output_section->vma
5041 + input_section->output_offset);
5042
5043 if (h->dynindx == -1
5044 || h->forced_local
0e1862bb 5045 || bfd_link_executable (info))
1419bbe5
WN		 5046 {
5047 /* This symbol is resolved locally. */
5048 outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE));
5049 outrel.r_addend = (h->root.u.def.value
5050 + h->root.u.def.section->output_section->vma
5051 + h->root.u.def.section->output_offset);
5052 }
5053 else
5054 {
5055 outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type);
5056 outrel.r_addend = 0;
5057 }
5058
5059 sreloc = globals->root.irelifunc;
5060 elf_append_rela (output_bfd, sreloc, &outrel);
5061
5062 /* If this reloc is against an external symbol, we
5063 do not want to fiddle with the addend. Otherwise,
5064 we need to include the symbol value so that it
5065 becomes an addend for the dynamic reloc. For an
5066 internal symbol, we have updated addend. */
5067 return bfd_reloc_ok;
5068 }
5069 /* FALLTHROUGH */
1419bbe5 5070 case BFD_RELOC_AARCH64_CALL26:
ce336788 5071 case BFD_RELOC_AARCH64_JUMP26:
1419bbe5
WN		 5072 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5073 signed_addend,
5074 weak_undef_p);
5075 return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type,
5076 howto, value);
1419bbe5
WN		 5077 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
5078 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 5079 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
ce336788 5080 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
99ad26cb 5081 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
dc8008f5 5082 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 5083 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
a2e1db00 5084 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
ce336788 5085 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
1419bbe5
WN		 5086 base_got = globals->root.sgot;
5087 off = h->got.offset;
5088
5089 if (base_got == NULL)
5090 abort ();
5091
5092 if (off == (bfd_vma) -1)
5093 {
5094 bfd_vma plt_index;
5095
5096 /* We can't use h->got.offset here to save state, or
5097 even just remember the offset, as finish_dynamic_symbol
5098 would use that as offset into .got. */
5099
5100 if (globals->root.splt != NULL)
5101 {
b1ee0cc4
WN		 5102 plt_index = ((h->plt.offset - globals->plt_header_size) /
5103 globals->plt_entry_size);
1419bbe5
WN		 5104 off = (plt_index + 3) * GOT_ENTRY_SIZE;
5105 base_got = globals->root.sgotplt;
5106 }
5107 else
5108 {
5109 plt_index = h->plt.offset / globals->plt_entry_size;
5110 off = plt_index * GOT_ENTRY_SIZE;
5111 base_got = globals->root.igotplt;
5112 }
5113
5114 if (h->dynindx == -1
5115 || h->forced_local
5116 || info->symbolic)
5117 {
5118 /* This references the local definition. We must
5119 initialize this entry in the global offset table.
5120 Since the offset must always be a multiple of 8,
5121 we use the least significant bit to record
5122 whether we have initialized it already.
5123
5124 When doing a dynamic link, we create a .rela.got
5125 relocation entry to initialize the value. This
5126 is done in the finish_dynamic_symbol routine. */
5127 if ((off & 1) != 0)
5128 off &= ~1;
5129 else
5130 {
5131 bfd_put_NN (output_bfd, value,
5132 base_got->contents + off);
5133 /* Note that this is harmless as -1 | 1 still is -1. */
5134 h->got.offset |= 1;
5135 }
5136 }
5137 value = (base_got->output_section->vma
5138 + base_got->output_offset + off);
5139 }
5140 else
5141 value = aarch64_calculate_got_entry_vma (h, globals, info,
5142 value, output_bfd,
5143 unresolved_reloc_p);
a0becb89 5144
2aff25ba
JW		 5145 if (aarch64_relocation_aginst_gp_p (bfd_r_type))
5146 addend = (globals->root.sgot->output_section->vma
5147 + globals->root.sgot->output_offset);
a0becb89 5148
1419bbe5 5149 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
99ad26cb 5150 addend, weak_undef_p);
1419bbe5 5151 return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, howto, value);
1419bbe5 5152 case BFD_RELOC_AARCH64_ADD_LO12:
ce336788 5153 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
1419bbe5
WN		 5154 break;
5155 }
5156 }
5157
a6bb11b2 5158 switch (bfd_r_type)
a06ea964 5159 {
a6bb11b2 5160 case BFD_RELOC_AARCH64_NONE:
0484b454 5161 case BFD_RELOC_AARCH64_TLSDESC_ADD:
a6bb11b2 5162 case BFD_RELOC_AARCH64_TLSDESC_CALL:
0484b454 5163 case BFD_RELOC_AARCH64_TLSDESC_LDR:
a06ea964
NC		 5164 *unresolved_reloc_p = FALSE;
5165 return bfd_reloc_ok;
5166
a6bb11b2 5167 case BFD_RELOC_AARCH64_NN:
a06ea964
NC		 5168
5169 /* When generating a shared object or relocatable executable, these
5170 relocations are copied into the output file to be resolved at
5171 run time. */
6353d82b
JW		 5172 if (((bfd_link_pic (info)
5173 || globals->root.is_relocatable_executable)
5174 && (input_section->flags & SEC_ALLOC)
5175 && (h == NULL
5176 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5177 || h->root.type != bfd_link_hash_undefweak))
5178 /* Or we are creating an executable, we may need to keep relocations
5179 for symbols satisfied by a dynamic library if we manage to avoid
5180 copy relocs for the symbol. */
5181 || (ELIMINATE_COPY_RELOCS
5182 && !bfd_link_pic (info)
5183 && h != NULL
5184 && (input_section->flags & SEC_ALLOC)
5185 && h->dynindx != -1
5186 && !h->non_got_ref
5187 && ((h->def_dynamic
5188 && !h->def_regular)
5189 || h->root.type == bfd_link_hash_undefweak
5190 || h->root.type == bfd_link_hash_undefined)))
a06ea964
NC		 5191 {
5192 Elf_Internal_Rela outrel;
5193 bfd_byte *loc;
5194 bfd_boolean skip, relocate;
5195 asection *sreloc;
5196
5197 *unresolved_reloc_p = FALSE;
5198
a06ea964
NC		 5199 skip = FALSE;
5200 relocate = FALSE;
5201
5202 outrel.r_addend = signed_addend;
5203 outrel.r_offset =
5204 _bfd_elf_section_offset (output_bfd, info, input_section,
5205 rel->r_offset);
5206 if (outrel.r_offset == (bfd_vma) - 1)
5207 skip = TRUE;
5208 else if (outrel.r_offset == (bfd_vma) - 2)
5209 {
5210 skip = TRUE;
5211 relocate = TRUE;
5212 }
5213
5214 outrel.r_offset += (input_section->output_section->vma
5215 + input_section->output_offset);
5216
5217 if (skip)
5218 memset (&outrel, 0, sizeof outrel);
5219 else if (h != NULL
5220 && h->dynindx != -1
0e1862bb 5221 && (!bfd_link_pic (info)
ac33b731
JW		 5222 || !(bfd_link_pie (info)
5223 || SYMBOLIC_BIND (info, h))
0e1862bb 5224 || !h->def_regular))
cec5225b 5225 outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type);
a06ea964
NC		 5226 else
5227 {
5228 int symbol;
5229
5230 /* On SVR4-ish systems, the dynamic loader cannot
5231 relocate the text and data segments independently,
5232 so the symbol does not matter. */
5233 symbol = 0;
1f56df9d 5234 relocate = globals->no_apply_dynamic_relocs ? FALSE : TRUE;
a6bb11b2 5235 outrel.r_info = ELFNN_R_INFO (symbol, AARCH64_R (RELATIVE));
a06ea964
NC		 5236 outrel.r_addend += value;
5237 }
5238
1419bbe5
WN		 5239 sreloc = elf_section_data (input_section)->sreloc;
5240 if (sreloc == NULL || sreloc->contents == NULL)
5241 return bfd_reloc_notsupported;
5242
5243 loc = sreloc->contents + sreloc->reloc_count++ * RELOC_SIZE (globals);
cec5225b 5244 bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
a06ea964 5245
1419bbe5 5246 if (sreloc->reloc_count * RELOC_SIZE (globals) > sreloc->size)
a06ea964
NC		 5247 {
5248 /* Sanity to check that we have previously allocated
5249 sufficient space in the relocation section for the
5250 number of relocations we actually want to emit. */
5251 abort ();
5252 }
5253
5254 /* If this reloc is against an external symbol, we do not want to
5255 fiddle with the addend. Otherwise, we need to include the symbol
5256 value so that it becomes an addend for the dynamic reloc. */
5257 if (!relocate)
5258 return bfd_reloc_ok;
5259
5260 return _bfd_final_link_relocate (howto, input_bfd, input_section,
5261 contents, rel->r_offset, value,
5262 signed_addend);
5263 }
5264 else
5265 value += signed_addend;
5266 break;
5267
a6bb11b2 5268 case BFD_RELOC_AARCH64_CALL26:
ce336788 5269 case BFD_RELOC_AARCH64_JUMP26:
a06ea964
NC		 5270 {
5271 asection *splt = globals->root.splt;
5272 bfd_boolean via_plt_p =
5273 splt != NULL && h != NULL && h->plt.offset != (bfd_vma) - 1;
5274
5275 /* A call to an undefined weak symbol is converted to a jump to
5276 the next instruction unless a PLT entry will be created.
5277 The jump to the next instruction is optimized as a NOP.
5278 Do the same for local undefined symbols. */
5279 if (weak_undef_p && ! via_plt_p)
5280 {
5281 bfd_putl32 (INSN_NOP, hit_data);
5282 return bfd_reloc_ok;
5283 }
5284
5285 /* If the call goes through a PLT entry, make sure to
5286 check distance to the right destination address. */
5287 if (via_plt_p)
07f9ddfe
JW		 5288 value = (splt->output_section->vma
5289 + splt->output_offset + h->plt.offset);
5290
5291 /* Check if a stub has to be inserted because the destination
5292 is too far away. */
5293 struct elf_aarch64_stub_hash_entry *stub_entry = NULL;
2f340668
JW		 5294
5295 /* If the branch destination is directed to plt stub, "value" will be
5296 the final destination, otherwise we should plus signed_addend, it may
5297 contain non-zero value, for example call to local function symbol
5298 which are turned into "sec_sym + sec_off", and sec_off is kept in
5299 signed_addend. */
5300 if (! aarch64_valid_branch_p (via_plt_p ? value : value + signed_addend,
5301 place))
07f9ddfe
JW		 5302 /* The target is out of reach, so redirect the branch to
5303 the local stub for this function. */
5304 stub_entry = elfNN_aarch64_get_stub_entry (input_section, sym_sec, h,
5305 rel, globals);
5306 if (stub_entry != NULL)
2f340668
JW		 5307 {
5308 value = (stub_entry->stub_offset
5309 + stub_entry->stub_sec->output_offset
5310 + stub_entry->stub_sec->output_section->vma);
5311
5312 /* We have redirected the destination to stub entry address,
5313 so ignore any addend record in the original rela entry. */
5314 signed_addend = 0;
5315 }
a06ea964 5316 }
caed7120
YZ		 5317 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5318 signed_addend, weak_undef_p);
07f9ddfe 5319 *unresolved_reloc_p = FALSE;
a06ea964
NC		 5320 break;
5321
dcbd20eb
JW		 5322 case BFD_RELOC_AARCH64_16_PCREL:
5323 case BFD_RELOC_AARCH64_32_PCREL:
5324 case BFD_RELOC_AARCH64_64_PCREL:
ce336788
JW		 5325 case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
5326 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
5327 case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
5328 case BFD_RELOC_AARCH64_LD_LO19_PCREL:
0e1862bb 5329 if (bfd_link_pic (info)
dcbd20eb
JW		 5330 && (input_section->flags & SEC_ALLOC) != 0
5331 && (input_section->flags & SEC_READONLY) != 0
d68f1976 5332 && !SYMBOL_REFERENCES_LOCAL (info, h))
dcbd20eb
JW		 5333 {
5334 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
5335
4eca0228 5336 _bfd_error_handler
695344c0 5337 /* xgettext:c-format */
d68f1976
JW		 5338 (_("%B: relocation %s against symbol `%s' which may bind "
5339 "externally can not be used when making a shared object; "
5340 "recompile with -fPIC"),
dcbd20eb
JW		 5341 input_bfd, elfNN_aarch64_howto_table[howto_index].name,
5342 h->root.root.string);
5343 bfd_set_error (bfd_error_bad_value);
5344 return FALSE;
5345 }
1a0670f3 5346 /* Fall through. */
dcbd20eb 5347
a6bb11b2 5348 case BFD_RELOC_AARCH64_16:
92d77487
RL		 5349#if ARCH_SIZE == 64
5350 case BFD_RELOC_AARCH64_32:
5351#endif
a6bb11b2 5352 case BFD_RELOC_AARCH64_ADD_LO12:
a6bb11b2 5353 case BFD_RELOC_AARCH64_BRANCH19:
ce336788 5354 case BFD_RELOC_AARCH64_LDST128_LO12:
a6bb11b2
YZ		 5355 case BFD_RELOC_AARCH64_LDST16_LO12:
5356 case BFD_RELOC_AARCH64_LDST32_LO12:
5357 case BFD_RELOC_AARCH64_LDST64_LO12:
ce336788 5358 case BFD_RELOC_AARCH64_LDST8_LO12:
a6bb11b2
YZ		 5359 case BFD_RELOC_AARCH64_MOVW_G0:
5360 case BFD_RELOC_AARCH64_MOVW_G0_NC:
ce336788 5361 case BFD_RELOC_AARCH64_MOVW_G0_S:
a6bb11b2
YZ		 5362 case BFD_RELOC_AARCH64_MOVW_G1:
5363 case BFD_RELOC_AARCH64_MOVW_G1_NC:
ce336788 5364 case BFD_RELOC_AARCH64_MOVW_G1_S:
a6bb11b2
YZ		 5365 case BFD_RELOC_AARCH64_MOVW_G2:
5366 case BFD_RELOC_AARCH64_MOVW_G2_NC:
ce336788 5367 case BFD_RELOC_AARCH64_MOVW_G2_S:
a6bb11b2 5368 case BFD_RELOC_AARCH64_MOVW_G3:
a6bb11b2 5369 case BFD_RELOC_AARCH64_TSTBR14:
caed7120
YZ		 5370 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5371 signed_addend, weak_undef_p);
a06ea964
NC		 5372 break;
5373
a6bb11b2
YZ		 5374 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
5375 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 5376 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
ce336788 5377 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
99ad26cb 5378 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
ce336788 5379 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
2aff25ba
JW		 5380 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
5381 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
5382 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
a06ea964
NC		 5383 if (globals->root.sgot == NULL)
5384 BFD_ASSERT (h != NULL);
5385
5386 if (h != NULL)
5387 {
99ad26cb 5388 bfd_vma addend = 0;
a06ea964
NC		 5389 value = aarch64_calculate_got_entry_vma (h, globals, info, value,
5390 output_bfd,
5391 unresolved_reloc_p);
2aff25ba 5392 if (aarch64_relocation_aginst_gp_p (bfd_r_type))
99ad26cb
JW		 5393 addend = (globals->root.sgot->output_section->vma
5394 + globals->root.sgot->output_offset);
caed7120 5395 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
99ad26cb 5396 addend, weak_undef_p);
a06ea964 5397 }
b53b1bed
JW		 5398 else
5399 {
99ad26cb 5400 bfd_vma addend = 0;
b53b1bed
JW		 5401 struct elf_aarch64_local_symbol *locals
5402 = elf_aarch64_locals (input_bfd);
5403
5404 if (locals == NULL)
5405 {
5406 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
4eca0228 5407 _bfd_error_handler
695344c0 5408 /* xgettext:c-format */
b53b1bed
JW		 5409 (_("%B: Local symbol descriptor table be NULL when applying "
5410 "relocation %s against local symbol"),
5411 input_bfd, elfNN_aarch64_howto_table[howto_index].name);
5412 abort ();
5413 }
5414
5415 off = symbol_got_offset (input_bfd, h, r_symndx);
5416 base_got = globals->root.sgot;
5417 bfd_vma got_entry_addr = (base_got->output_section->vma
5418 + base_got->output_offset + off);
5419
5420 if (!symbol_got_offset_mark_p (input_bfd, h, r_symndx))
5421 {
5422 bfd_put_64 (output_bfd, value, base_got->contents + off);
5423
0e1862bb 5424 if (bfd_link_pic (info))
b53b1bed
JW		 5425 {
5426 asection *s;
5427 Elf_Internal_Rela outrel;
5428
5429 /* For local symbol, we have done absolute relocation in static
5430 linking stageh. While for share library, we need to update
5431 the content of GOT entry according to the share objects
5432 loading base address. So we need to generate a
5433 R_AARCH64_RELATIVE reloc for dynamic linker. */
5434 s = globals->root.srelgot;
5435 if (s == NULL)
5436 abort ();
5437
5438 outrel.r_offset = got_entry_addr;
5439 outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
5440 outrel.r_addend = value;
5441 elf_append_rela (output_bfd, s, &outrel);
5442 }
5443
5444 symbol_got_offset_mark (input_bfd, h, r_symndx);
5445 }
5446
5447 /* Update the relocation value to GOT entry addr as we have transformed
5448 the direct data access into indirect data access through GOT. */
5449 value = got_entry_addr;
99ad26cb 5450
2aff25ba 5451 if (aarch64_relocation_aginst_gp_p (bfd_r_type))
99ad26cb
JW		 5452 addend = base_got->output_section->vma + base_got->output_offset;
5453
5454 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5455 addend, weak_undef_p);
b53b1bed 5456 }
a2e1db00
RL		 5457 break;
5458
ce336788 5459 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a6bb11b2 5460 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 5461 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
a6bb11b2 5462 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a6bb11b2 5463 case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
ce336788 5464 case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
043bf05a 5465 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
73f925cc 5466 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 5467 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 5468 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
a06ea964
NC		 5469 if (globals->root.sgot == NULL)
5470 return bfd_reloc_notsupported;
5471
5472 value = (symbol_got_offset (input_bfd, h, r_symndx)
5473 + globals->root.sgot->output_section->vma
f44a1f8e 5474 + globals->root.sgot->output_offset);
a06ea964 5475
caed7120
YZ		 5476 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5477 0, weak_undef_p);
a06ea964
NC		 5478 *unresolved_reloc_p = FALSE;
5479 break;
5480
7ba7cfe4 5481 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 5482 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
3b957e5b
RL		 5483 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
5484 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
94facae3
RL		 5485 if (globals->root.sgot == NULL)
5486 return bfd_reloc_notsupported;
5487
5488 value = symbol_got_offset (input_bfd, h, r_symndx);
5489 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5490 0, weak_undef_p);
5491 *unresolved_reloc_p = FALSE;
5492 break;
5493
6ffe9a1b 5494 case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12:
40fbed84 5495 case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12:
753999c1 5496 case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC:
07c9aa07
JW		 5497 case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12:
5498 case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC:
5499 case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12:
5500 case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC:
5501 case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12:
5502 case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC:
5503 case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12:
5504 case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC:
6ffe9a1b
JW		 5505 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0:
5506 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC:
5507 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1:
5508 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC:
5509 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2:
40fbed84
JW		 5510 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5511 signed_addend - dtpoff_base (info),
5512 weak_undef_p);
5513 break;
5514
a6bb11b2
YZ		 5515 case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
5516 case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
5517 case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
5518 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
5519 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
5520 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
5521 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
5522 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
caed7120
YZ		 5523 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5524 signed_addend - tpoff_base (info),
5525 weak_undef_p);
a06ea964
NC		 5526 *unresolved_reloc_p = FALSE;
5527 break;
5528
f955cccf 5529 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 5530 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 5531 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
a6bb11b2 5532 case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
f955cccf 5533 case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12:
1ada945d 5534 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
a06ea964
NC		 5535 if (globals->root.sgot == NULL)
5536 return bfd_reloc_notsupported;
a06ea964
NC		 5537 value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx)
5538 + globals->root.sgotplt->output_section->vma
f44a1f8e 5539 + globals->root.sgotplt->output_offset
a06ea964
NC		 5540 + globals->sgotplt_jump_table_size);
5541
caed7120
YZ		 5542 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5543 0, weak_undef_p);
a06ea964
NC		 5544 *unresolved_reloc_p = FALSE;
5545 break;
5546
0484b454
RL		 5547 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
5548 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
5549 if (globals->root.sgot == NULL)
5550 return bfd_reloc_notsupported;
5551
5552 value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx)
5553 + globals->root.sgotplt->output_section->vma
5554 + globals->root.sgotplt->output_offset
5555 + globals->sgotplt_jump_table_size);
5556
5557 value -= (globals->root.sgot->output_section->vma
5558 + globals->root.sgot->output_offset);
5559
5560 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5561 0, weak_undef_p);
5562 *unresolved_reloc_p = FALSE;
5563 break;
5564
a06ea964
NC		 5565 default:
5566 return bfd_reloc_notsupported;
5567 }
5568
5569 if (saved_addend)
5570 *saved_addend = value;
5571
5572 /* Only apply the final relocation in a sequence. */
5573 if (save_addend)
5574 return bfd_reloc_continue;
5575
caed7120
YZ		 5576 return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type,
5577 howto, value);
a06ea964
NC		 5578}
5579
2d0ca824
YN		 5580/* LP64 and ILP32 operates on x- and w-registers respectively.
5581 Next definitions take into account the difference between
5582 corresponding machine codes. R means x-register if the target
5583 arch is LP64, and w-register if the target is ILP32. */
5584
5585#if ARCH_SIZE == 64
5586# define add_R0_R0 (0x91000000)
5587# define add_R0_R0_R1 (0x8b000020)
5588# define add_R0_R1 (0x91400020)
5589# define ldr_R0 (0x58000000)
5590# define ldr_R0_mask(i) (i & 0xffffffe0)
5591# define ldr_R0_x0 (0xf9400000)
5592# define ldr_hw_R0 (0xf2a00000)
5593# define movk_R0 (0xf2800000)
5594# define movz_R0 (0xd2a00000)
5595# define movz_hw_R0 (0xd2c00000)
5596#else /*ARCH_SIZE == 32 */
5597# define add_R0_R0 (0x11000000)
5598# define add_R0_R0_R1 (0x0b000020)
5599# define add_R0_R1 (0x11400020)
5600# define ldr_R0 (0x18000000)
5601# define ldr_R0_mask(i) (i & 0xbfffffe0)
5602# define ldr_R0_x0 (0xb9400000)
5603# define ldr_hw_R0 (0x72a00000)
5604# define movk_R0 (0x72800000)
5605# define movz_R0 (0x52a00000)
5606# define movz_hw_R0 (0x52c00000)
5607#endif
5608
a06ea964
NC		 5609/* Handle TLS relaxations. Relaxing is possible for symbols that use
5610 R_AARCH64_TLSDESC_ADR_{PAGE, LD64_LO12_NC, ADD_LO12_NC} during a static
5611 link.
5612
5613 Return bfd_reloc_ok if we're done, bfd_reloc_continue if the caller
5614 is to then call final_link_relocate. Return other values in the
5615 case of error. */
5616
5617static bfd_reloc_status_type
cec5225b 5618elfNN_aarch64_tls_relax (struct elf_aarch64_link_hash_table *globals,
a06ea964 5619 bfd *input_bfd, bfd_byte *contents,
06d2788c 5620 Elf_Internal_Rela *rel, struct elf_link_hash_entry *h)
a06ea964
NC		 5621{
5622 bfd_boolean is_local = h == NULL;
cec5225b 5623 unsigned int r_type = ELFNN_R_TYPE (rel->r_info);
a06ea964
NC		 5624 unsigned long insn;
5625
5626 BFD_ASSERT (globals && input_bfd && contents && rel);
5627
a6bb11b2 5628 switch (elfNN_aarch64_bfd_reloc_from_type (r_type))
a06ea964 5629 {
a6bb11b2 5630 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
ce336788 5631 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
a06ea964
NC		 5632 if (is_local)
5633 {
5634 /* GD->LE relaxation:
2d0ca824 5635 adrp x0, :tlsgd:var => movz R0, :tprel_g1:var
a06ea964 5636 or
2d0ca824
YN		 5637 adrp x0, :tlsdesc:var => movz R0, :tprel_g1:var
5638
5639 Where R is x for LP64, and w for ILP32. */
5640 bfd_putl32 (movz_R0, contents + rel->r_offset);
a06ea964
NC		 5641 return bfd_reloc_continue;
5642 }
5643 else
5644 {
5645 /* GD->IE relaxation:
5646 adrp x0, :tlsgd:var => adrp x0, :gottprel:var
5647 or
5648 adrp x0, :tlsdesc:var => adrp x0, :gottprel:var
5649 */
a06ea964
NC		 5650 return bfd_reloc_continue;
5651 }
5652
389b8029
MS		 5653 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
5654 BFD_ASSERT (0);
5655 break;
5656
1ada945d
MS		 5657 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
5658 if (is_local)
5659 {
5660 /* Tiny TLSDESC->LE relaxation:
2d0ca824
YN		 5661 ldr x1, :tlsdesc:var => movz R0, #:tprel_g1:var
5662 adr x0, :tlsdesc:var => movk R0, #:tprel_g0_nc:var
1ada945d
MS		 5663 .tlsdesccall var
5664 blr x1 => nop
2d0ca824
YN		 5665
5666 Where R is x for LP64, and w for ILP32. */
1ada945d
MS		 5667 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21));
5668 BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL));
5669
5670 rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5671 AARCH64_R (TLSLE_MOVW_TPREL_G0_NC));
5672 rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5673
2d0ca824
YN		 5674 bfd_putl32 (movz_R0, contents + rel->r_offset);
5675 bfd_putl32 (movk_R0, contents + rel->r_offset + 4);
1ada945d
MS		 5676 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8);
5677 return bfd_reloc_continue;
5678 }
5679 else
5680 {
5681 /* Tiny TLSDESC->IE relaxation:
5682 ldr x1, :tlsdesc:var => ldr x0, :gottprel:var
5683 adr x0, :tlsdesc:var => nop
5684 .tlsdesccall var
5685 blr x1 => nop
5686 */
5687 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21));
5688 BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL));
5689
5690 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5691 rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5692
2d0ca824 5693 bfd_putl32 (ldr_R0, contents + rel->r_offset);
1ada945d
MS		 5694 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4);
5695 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8);
5696 return bfd_reloc_continue;
5697 }
5698
3c12b054
MS		 5699 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
5700 if (is_local)
5701 {
5702 /* Tiny GD->LE relaxation:
5703 adr x0, :tlsgd:var => mrs x1, tpidr_el0
2d0ca824
YN		 5704 bl __tls_get_addr => add R0, R1, #:tprel_hi12:x, lsl #12
5705 nop => add R0, R0, #:tprel_lo12_nc:x
5706
5707 Where R is x for LP64, and x for Ilp32. */
3c12b054
MS		 5708
5709 /* First kill the tls_get_addr reloc on the bl instruction. */
5710 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
5711
5712 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 0);
2d0ca824
YN		 5713 bfd_putl32 (add_R0_R1, contents + rel->r_offset + 4);
5714 bfd_putl32 (add_R0_R0, contents + rel->r_offset + 8);
3c12b054
MS		 5715
5716 rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5717 AARCH64_R (TLSLE_ADD_TPREL_LO12_NC));
5718 rel[1].r_offset = rel->r_offset + 8;
5719
5720 /* Move the current relocation to the second instruction in
5721 the sequence. */
5722 rel->r_offset += 4;
5723 rel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5724 AARCH64_R (TLSLE_ADD_TPREL_HI12));
5725 return bfd_reloc_continue;
5726 }
5727 else
5728 {
5729 /* Tiny GD->IE relaxation:
2d0ca824 5730 adr x0, :tlsgd:var => ldr R0, :gottprel:var
3c12b054 5731 bl __tls_get_addr => mrs x1, tpidr_el0
2d0ca824
YN		 5732 nop => add R0, R0, R1
5733
5734 Where R is x for LP64, and w for Ilp32. */
3c12b054
MS		 5735
5736 /* First kill the tls_get_addr reloc on the bl instruction. */
5737 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
5738 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5739
2d0ca824 5740 bfd_putl32 (ldr_R0, contents + rel->r_offset);
3c12b054 5741 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4);
2d0ca824 5742 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8);
3c12b054
MS		 5743 return bfd_reloc_continue;
5744 }
5745
ac734732
RL		 5746#if ARCH_SIZE == 64
5747 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
5748 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSGD_MOVW_G0_NC));
5749 BFD_ASSERT (rel->r_offset + 12 == rel[2].r_offset);
5750 BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (CALL26));
5751
5752 if (is_local)
5753 {
5754 /* Large GD->LE relaxation:
5755 movz x0, #:tlsgd_g1:var => movz x0, #:tprel_g2:var, lsl #32
5756 movk x0, #:tlsgd_g0_nc:var => movk x0, #:tprel_g1_nc:var, lsl #16
5757 add x0, gp, x0 => movk x0, #:tprel_g0_nc:var
5758 bl __tls_get_addr => mrs x1, tpidr_el0
5759 nop => add x0, x0, x1
5760 */
5761 rel[2].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5762 AARCH64_R (TLSLE_MOVW_TPREL_G0_NC));
5763 rel[2].r_offset = rel->r_offset + 8;
5764
2d0ca824
YN		 5765 bfd_putl32 (movz_hw_R0, contents + rel->r_offset + 0);
5766 bfd_putl32 (ldr_hw_R0, contents + rel->r_offset + 4);
5767 bfd_putl32 (movk_R0, contents + rel->r_offset + 8);
ac734732 5768 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12);
2d0ca824 5769 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16);
ac734732
RL		 5770 }
5771 else
5772 {
5773 /* Large GD->IE relaxation:
5774 movz x0, #:tlsgd_g1:var => movz x0, #:gottprel_g1:var, lsl #16
5775 movk x0, #:tlsgd_g0_nc:var => movk x0, #:gottprel_g0_nc:var
5776 add x0, gp, x0 => ldr x0, [gp, x0]
5777 bl __tls_get_addr => mrs x1, tpidr_el0
5778 nop => add x0, x0, x1
5779 */
5780 rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5781 bfd_putl32 (0xd2a80000, contents + rel->r_offset + 0);
2d0ca824 5782 bfd_putl32 (ldr_R0, contents + rel->r_offset + 8);
ac734732 5783 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12);
2d0ca824 5784 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16);
ac734732
RL		 5785 }
5786 return bfd_reloc_continue;
5787
5788 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
5789 return bfd_reloc_continue;
5790#endif
5791
043bf05a
MS		 5792 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
5793 return bfd_reloc_continue;
5794
a6bb11b2 5795 case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC:
a06ea964
NC		 5796 if (is_local)
5797 {
5798 /* GD->LE relaxation:
5799 ldr xd, [x0, #:tlsdesc_lo12:var] => movk x0, :tprel_g0_nc:var
2d0ca824
YN		 5800
5801 Where R is x for lp64 mode, and w for ILP32 mode. */
5802 bfd_putl32 (movk_R0, contents + rel->r_offset);
a06ea964
NC		 5803 return bfd_reloc_continue;
5804 }
5805 else
5806 {
5807 /* GD->IE relaxation:
2d0ca824
YN		 5808 ldr xd, [x0, #:tlsdesc_lo12:var] => ldr R0, [x0, #:gottprel_lo12:var]
5809
5810 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964 5811 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5812 bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset);
a06ea964
NC		 5813 return bfd_reloc_continue;
5814 }
5815
a6bb11b2 5816 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a06ea964
NC		 5817 if (is_local)
5818 {
5819 /* GD->LE relaxation
2d0ca824 5820 add x0, #:tlsgd_lo12:var => movk R0, :tprel_g0_nc:var
a06ea964 5821 bl __tls_get_addr => mrs x1, tpidr_el0
2d0ca824
YN		 5822 nop => add R0, R1, R0
5823
5824 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964
NC		 5825
5826 /* First kill the tls_get_addr reloc on the bl instruction. */
5827 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
cec5225b 5828 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
a06ea964 5829
2d0ca824 5830 bfd_putl32 (movk_R0, contents + rel->r_offset);
a06ea964 5831 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4);
2d0ca824 5832 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8);
a06ea964
NC		 5833 return bfd_reloc_continue;
5834 }
5835 else
5836 {
5837 /* GD->IE relaxation
5cd1d8bc 5838 ADD x0, #:tlsgd_lo12:var => ldr R0, [x0, #:gottprel_lo12:var]
a06ea964
NC		 5839 BL __tls_get_addr => mrs x1, tpidr_el0
5840 R_AARCH64_CALL26
5cd1d8bc
YN		 5841 NOP => add R0, R1, R0
5842
5843 Where R is x for lp64 mode, and w for ilp32 mode. */
a06ea964 5844
a6bb11b2 5845 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26));
a06ea964
NC		 5846
5847 /* Remove the relocation on the BL instruction. */
cec5225b 5848 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
a06ea964 5849
a06ea964
NC		 5850 /* We choose to fixup the BL and NOP instructions using the
5851 offset from the second relocation to allow flexibility in
5852 scheduling instructions between the ADD and BL. */
2d0ca824 5853 bfd_putl32 (ldr_R0_x0, contents + rel->r_offset);
5cd1d8bc 5854 bfd_putl32 (0xd53bd041, contents + rel[1].r_offset);
2d0ca824 5855 bfd_putl32 (add_R0_R0_R1, contents + rel[1].r_offset + 4);
a06ea964
NC		 5856 return bfd_reloc_continue;
5857 }
5858
0484b454 5859 case BFD_RELOC_AARCH64_TLSDESC_ADD:
f955cccf 5860 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 5861 case BFD_RELOC_AARCH64_TLSDESC_CALL:
a06ea964
NC		 5862 /* GD->IE/LE relaxation:
5863 add x0, x0, #:tlsdesc_lo12:var => nop
5864 blr xd => nop
5865 */
5866 bfd_putl32 (INSN_NOP, contents + rel->r_offset);
5867 return bfd_reloc_ok;
5868
0484b454
RL		 5869 case BFD_RELOC_AARCH64_TLSDESC_LDR:
5870 if (is_local)
5871 {
5872 /* GD->LE relaxation:
2d0ca824
YN		 5873 ldr xd, [gp, xn] => movk R0, #:tprel_g0_nc:var
5874
5875 Where R is x for lp64 mode, and w for ILP32 mode. */
5876 bfd_putl32 (movk_R0, contents + rel->r_offset);
0484b454
RL		 5877 return bfd_reloc_continue;
5878 }
5879 else
5880 {
5881 /* GD->IE relaxation:
2d0ca824
YN		 5882 ldr xd, [gp, xn] => ldr R0, [gp, xn]
5883
5884 Where R is x for lp64 mode, and w for ILP32 mode. */
0484b454 5885 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5886 bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset);
0484b454
RL		 5887 return bfd_reloc_ok;
5888 }
5889
5890 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
5891 /* GD->LE relaxation:
2d0ca824 5892 movk xd, #:tlsdesc_off_g0_nc:var => movk R0, #:tprel_g1_nc:var, lsl #16
0484b454 5893 GD->IE relaxation:
2d0ca824
YN		 5894 movk xd, #:tlsdesc_off_g0_nc:var => movk Rd, #:gottprel_g0_nc:var
5895
5896 Where R is x for lp64 mode, and w for ILP32 mode. */
0484b454 5897 if (is_local)
2d0ca824 5898 bfd_putl32 (ldr_hw_R0, contents + rel->r_offset);
0484b454
RL		 5899 return bfd_reloc_continue;
5900
5901 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
5902 if (is_local)
5903 {
5904 /* GD->LE relaxation:
2d0ca824
YN		 5905 movz xd, #:tlsdesc_off_g1:var => movz R0, #:tprel_g2:var, lsl #32
5906
5907 Where R is x for lp64 mode, and w for ILP32 mode. */
5908 bfd_putl32 (movz_hw_R0, contents + rel->r_offset);
0484b454
RL		 5909 return bfd_reloc_continue;
5910 }
5911 else
5912 {
5913 /* GD->IE relaxation:
2d0ca824
YN		 5914 movz xd, #:tlsdesc_off_g1:var => movz Rd, #:gottprel_g1:var, lsl #16
5915
5916 Where R is x for lp64 mode, and w for ILP32 mode. */
0484b454 5917 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5918 bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset);
0484b454
RL		 5919 return bfd_reloc_continue;
5920 }
5921
a6bb11b2 5922 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a06ea964 5923 /* IE->LE relaxation:
2d0ca824
YN		 5924 adrp xd, :gottprel:var => movz Rd, :tprel_g1:var
5925
5926 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964
NC		 5927 if (is_local)
5928 {
5929 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5930 bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset);
a06ea964
NC		 5931 }
5932 return bfd_reloc_continue;
5933
a6bb11b2 5934 case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC:
a06ea964 5935 /* IE->LE relaxation:
2d0ca824
YN		 5936 ldr xd, [xm, #:gottprel_lo12:var] => movk Rd, :tprel_g0_nc:var
5937
5938 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964
NC		 5939 if (is_local)
5940 {
5941 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5942 bfd_putl32 (movk_R0 | (insn & 0x1f), contents + rel->r_offset);
a06ea964
NC		 5943 }
5944 return bfd_reloc_continue;
5945
259364ad
JW		 5946 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
5947 /* LD->LE relaxation (tiny):
5948 adr x0, :tlsldm:x => mrs x0, tpidr_el0
c1fc2d7e
YN		 5949 bl __tls_get_addr => add R0, R0, TCB_SIZE
5950
5951 Where R is x for lp64 mode, and w for ilp32 mode. */
259364ad
JW		 5952 if (is_local)
5953 {
5954 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
5955 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26));
5956 /* No need of CALL26 relocation for tls_get_addr. */
5957 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5958 bfd_putl32 (0xd53bd040, contents + rel->r_offset + 0);
2d0ca824
YN		 5959 bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10),
5960 contents + rel->r_offset + 4);
259364ad
JW		 5961 return bfd_reloc_ok;
5962 }
5963 return bfd_reloc_continue;
5964
5965 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
5966 /* LD->LE relaxation (small):
5967 adrp x0, :tlsldm:x => mrs x0, tpidr_el0
5968 */
5969 if (is_local)
5970 {
5971 bfd_putl32 (0xd53bd040, contents + rel->r_offset);
5972 return bfd_reloc_ok;
5973 }
5974 return bfd_reloc_continue;
5975
5976 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
5977 /* LD->LE relaxation (small):
c1fc2d7e 5978 add x0, #:tlsldm_lo12:x => add R0, R0, TCB_SIZE
259364ad 5979 bl __tls_get_addr => nop
c1fc2d7e
YN		 5980
5981 Where R is x for lp64 mode, and w for ilp32 mode. */
259364ad
JW		 5982 if (is_local)
5983 {
5984 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
5985 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26));
5986 /* No need of CALL26 relocation for tls_get_addr. */
5987 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
2d0ca824
YN		 5988 bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10),
5989 contents + rel->r_offset + 0);
c1fc2d7e 5990 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4);
259364ad
JW		 5991 return bfd_reloc_ok;
5992 }
5993 return bfd_reloc_continue;
5994
a06ea964
NC		 5995 default:
5996 return bfd_reloc_continue;
5997 }
5998
5999 return bfd_reloc_ok;
6000}
6001
6002/* Relocate an AArch64 ELF section. */
6003
6004static bfd_boolean
cec5225b 6005elfNN_aarch64_relocate_section (bfd *output_bfd,
a06ea964
NC		 6006 struct bfd_link_info *info,
6007 bfd *input_bfd,
6008 asection *input_section,
6009 bfd_byte *contents,
6010 Elf_Internal_Rela *relocs,
6011 Elf_Internal_Sym *local_syms,
6012 asection **local_sections)
6013{
6014 Elf_Internal_Shdr *symtab_hdr;
6015 struct elf_link_hash_entry **sym_hashes;
6016 Elf_Internal_Rela *rel;
6017 Elf_Internal_Rela *relend;
6018 const char *name;
cec5225b 6019 struct elf_aarch64_link_hash_table *globals;
a06ea964
NC		 6020 bfd_boolean save_addend = FALSE;
6021 bfd_vma addend = 0;
6022
cec5225b 6023 globals = elf_aarch64_hash_table (info);
a06ea964
NC		 6024
6025 symtab_hdr = &elf_symtab_hdr (input_bfd);
6026 sym_hashes = elf_sym_hashes (input_bfd);
6027
6028 rel = relocs;
6029 relend = relocs + input_section->reloc_count;
6030 for (; rel < relend; rel++)
6031 {
6032 unsigned int r_type;
a6bb11b2
YZ		 6033 bfd_reloc_code_real_type bfd_r_type;
6034 bfd_reloc_code_real_type relaxed_bfd_r_type;
a06ea964
NC		 6035 reloc_howto_type *howto;
6036 unsigned long r_symndx;
6037 Elf_Internal_Sym *sym;
6038 asection *sec;
6039 struct elf_link_hash_entry *h;
6040 bfd_vma relocation;
6041 bfd_reloc_status_type r;
6042 arelent bfd_reloc;
6043 char sym_type;
6044 bfd_boolean unresolved_reloc = FALSE;
6045 char *error_message = NULL;
6046
cec5225b
YZ		 6047 r_symndx = ELFNN_R_SYM (rel->r_info);
6048 r_type = ELFNN_R_TYPE (rel->r_info);
a06ea964 6049
cec5225b 6050 bfd_reloc.howto = elfNN_aarch64_howto_from_type (r_type);
a06ea964
NC		 6051 howto = bfd_reloc.howto;
6052
7fcfd62d
NC		 6053 if (howto == NULL)
6054 {
695344c0 6055 /* xgettext:c-format */
4eca0228 6056 _bfd_error_handler
7fcfd62d 6057 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
c08bb8dd 6058 input_bfd, r_type, input_section);
7fcfd62d
NC		 6059 return FALSE;
6060 }
a6bb11b2 6061 bfd_r_type = elfNN_aarch64_bfd_reloc_from_howto (howto);
7fcfd62d 6062
a06ea964
NC		 6063 h = NULL;
6064 sym = NULL;
6065 sec = NULL;
6066
6067 if (r_symndx < symtab_hdr->sh_info)
6068 {
6069 sym = local_syms + r_symndx;
cec5225b 6070 sym_type = ELFNN_ST_TYPE (sym->st_info);
a06ea964
NC		 6071 sec = local_sections[r_symndx];
6072
6073 /* An object file might have a reference to a local
6074 undefined symbol. This is a daft object file, but we
6075 should at least do something about it. */
6076 if (r_type != R_AARCH64_NONE && r_type != R_AARCH64_NULL
6077 && bfd_is_und_section (sec)
6078 && ELF_ST_BIND (sym->st_info) != STB_WEAK)
1a72702b
AM		 6079 (*info->callbacks->undefined_symbol)
6080 (info, bfd_elf_string_from_elf_section
6081 (input_bfd, symtab_hdr->sh_link, sym->st_name),
6082 input_bfd, input_section, rel->r_offset, TRUE);
a06ea964 6083
a06ea964 6084 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1419bbe5
WN		 6085
6086 /* Relocate against local STT_GNU_IFUNC symbol. */
0e1862bb 6087 if (!bfd_link_relocatable (info)
1419bbe5
WN		 6088 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
6089 {
6090 h = elfNN_aarch64_get_local_sym_hash (globals, input_bfd,
6091 rel, FALSE);
6092 if (h == NULL)
6093 abort ();
6094
6095 /* Set STT_GNU_IFUNC symbol value. */
6096 h->root.u.def.value = sym->st_value;
6097 h->root.u.def.section = sec;
6098 }
a06ea964
NC		 6099 }
6100 else
6101 {
62d887d4 6102 bfd_boolean warned, ignored;
a06ea964
NC		 6103
6104 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
6105 r_symndx, symtab_hdr, sym_hashes,
6106 h, sec, relocation,
62d887d4 6107 unresolved_reloc, warned, ignored);
a06ea964
NC		 6108
6109 sym_type = h->type;
6110 }
6111
6112 if (sec != NULL && discarded_section (sec))
6113 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
6114 rel, 1, relend, howto, 0, contents);
6115
0e1862bb 6116 if (bfd_link_relocatable (info))
2e0488d3 6117 continue;
a06ea964
NC		 6118
6119 if (h != NULL)
6120 name = h->root.root.string;
6121 else
6122 {
6123 name = (bfd_elf_string_from_elf_section
6124 (input_bfd, symtab_hdr->sh_link, sym->st_name));
6125 if (name == NULL || *name == '\0')
6126 name = bfd_section_name (input_bfd, sec);
6127 }
6128
6129 if (r_symndx != 0
6130 && r_type != R_AARCH64_NONE
6131 && r_type != R_AARCH64_NULL
6132 && (h == NULL
6133 || h->root.type == bfd_link_hash_defined
6134 || h->root.type == bfd_link_hash_defweak)
a6bb11b2 6135 && IS_AARCH64_TLS_RELOC (bfd_r_type) != (sym_type == STT_TLS))
a06ea964 6136 {
4eca0228 6137 _bfd_error_handler
a06ea964 6138 ((sym_type == STT_TLS
695344c0 6139 /* xgettext:c-format */
a06ea964 6140 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
695344c0 6141 /* xgettext:c-format */
a06ea964
NC		 6142 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s")),
6143 input_bfd,
6144 input_section, (long) rel->r_offset, howto->name, name);
6145 }
6146
a06ea964
NC		 6147 /* We relax only if we can see that there can be a valid transition
6148 from a reloc type to another.
cec5225b 6149 We call elfNN_aarch64_final_link_relocate unless we're completely
a06ea964
NC		 6150 done, i.e., the relaxation produced the final output we want. */
6151
a6bb11b2
YZ		 6152 relaxed_bfd_r_type = aarch64_tls_transition (input_bfd, info, r_type,
6153 h, r_symndx);
6154 if (relaxed_bfd_r_type != bfd_r_type)
a06ea964 6155 {
a6bb11b2
YZ		 6156 bfd_r_type = relaxed_bfd_r_type;
6157 howto = elfNN_aarch64_howto_from_bfd_reloc (bfd_r_type);
6158 BFD_ASSERT (howto != NULL);
6159 r_type = howto->type;
06d2788c 6160 r = elfNN_aarch64_tls_relax (globals, input_bfd, contents, rel, h);
a06ea964
NC		 6161 unresolved_reloc = 0;
6162 }
6163 else
6164 r = bfd_reloc_continue;
6165
6166 /* There may be multiple consecutive relocations for the
6167 same offset. In that case we are supposed to treat the
6168 output of each relocation as the addend for the next. */
6169 if (rel + 1 < relend
6170 && rel->r_offset == rel[1].r_offset
cec5225b
YZ		 6171 && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NONE
6172 && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NULL)
a06ea964
NC		 6173 save_addend = TRUE;
6174 else
6175 save_addend = FALSE;
6176
6177 if (r == bfd_reloc_continue)
cec5225b 6178 r = elfNN_aarch64_final_link_relocate (howto, input_bfd, output_bfd,
a06ea964
NC		 6179 input_section, contents, rel,
6180 relocation, info, sec,
6181 h, &unresolved_reloc,
1419bbe5 6182 save_addend, &addend, sym);
a06ea964 6183
a6bb11b2 6184 switch (elfNN_aarch64_bfd_reloc_from_type (r_type))
a06ea964 6185 {
ce336788 6186 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a6bb11b2 6187 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 6188 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
7ba7cfe4 6189 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 6190 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
73f925cc 6191 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 6192 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 6193 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
a06ea964
NC		 6194 if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx))
6195 {
6196 bfd_boolean need_relocs = FALSE;
6197 bfd_byte *loc;
6198 int indx;
6199 bfd_vma off;
6200
6201 off = symbol_got_offset (input_bfd, h, r_symndx);
6202 indx = h && h->dynindx != -1 ? h->dynindx : 0;
6203
6204 need_relocs =
0e1862bb 6205 (bfd_link_pic (info) || indx != 0) &&
a06ea964
NC		 6206 (h == NULL
6207 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6208 || h->root.type != bfd_link_hash_undefweak);
6209
6210 BFD_ASSERT (globals->root.srelgot != NULL);
6211
6212 if (need_relocs)
6213 {
6214 Elf_Internal_Rela rela;
a6bb11b2 6215 rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPMOD));
a06ea964
NC		 6216 rela.r_addend = 0;
6217 rela.r_offset = globals->root.sgot->output_section->vma +
6218 globals->root.sgot->output_offset + off;
6219
6220
6221 loc = globals->root.srelgot->contents;
6222 loc += globals->root.srelgot->reloc_count++
6223 * RELOC_SIZE (htab);
cec5225b 6224 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964 6225
f69e4920
JW		 6226 bfd_reloc_code_real_type real_type =
6227 elfNN_aarch64_bfd_reloc_from_type (r_type);
6228
6229 if (real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21
73f925cc
JW		 6230 || real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21
6231 || real_type == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC)
77a69ff8
JW		 6232 {
6233 /* For local dynamic, don't generate DTPREL in any case.
6234 Initialize the DTPREL slot into zero, so we get module
6235 base address when invoke runtime TLS resolver. */
6236 bfd_put_NN (output_bfd, 0,
6237 globals->root.sgot->contents + off
6238 + GOT_ENTRY_SIZE);
6239 }
6240 else if (indx == 0)
a06ea964 6241 {
cec5225b 6242 bfd_put_NN (output_bfd,
a06ea964
NC		 6243 relocation - dtpoff_base (info),
6244 globals->root.sgot->contents + off
6245 + GOT_ENTRY_SIZE);
6246 }
6247 else
6248 {
6249 /* This TLS symbol is global. We emit a
6250 relocation to fixup the tls offset at load
6251 time. */
6252 rela.r_info =
a6bb11b2 6253 ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPREL));
a06ea964
NC		 6254 rela.r_addend = 0;
6255 rela.r_offset =
6256 (globals->root.sgot->output_section->vma
6257 + globals->root.sgot->output_offset + off
6258 + GOT_ENTRY_SIZE);
6259
6260 loc = globals->root.srelgot->contents;
6261 loc += globals->root.srelgot->reloc_count++
6262 * RELOC_SIZE (globals);
cec5225b
YZ		 6263 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
6264 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 6265 globals->root.sgot->contents + off
6266 + GOT_ENTRY_SIZE);
6267 }
6268 }
6269 else
6270 {
cec5225b 6271 bfd_put_NN (output_bfd, (bfd_vma) 1,
a06ea964 6272 globals->root.sgot->contents + off);
cec5225b 6273 bfd_put_NN (output_bfd,
a06ea964
NC		 6274 relocation - dtpoff_base (info),
6275 globals->root.sgot->contents + off
6276 + GOT_ENTRY_SIZE);
6277 }
6278
6279 symbol_got_offset_mark (input_bfd, h, r_symndx);
6280 }
6281 break;
6282
a6bb11b2
YZ		 6283 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
6284 case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC:
043bf05a 6285 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
3b957e5b
RL		 6286 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
6287 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
a06ea964
NC		 6288 if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx))
6289 {
6290 bfd_boolean need_relocs = FALSE;
6291 bfd_byte *loc;
6292 int indx;
6293 bfd_vma off;
6294
6295 off = symbol_got_offset (input_bfd, h, r_symndx);
6296
6297 indx = h && h->dynindx != -1 ? h->dynindx : 0;
6298
6299 need_relocs =
0e1862bb 6300 (bfd_link_pic (info) || indx != 0) &&
a06ea964
NC		 6301 (h == NULL
6302 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6303 || h->root.type != bfd_link_hash_undefweak);
6304
6305 BFD_ASSERT (globals->root.srelgot != NULL);
6306
6307 if (need_relocs)
6308 {
6309 Elf_Internal_Rela rela;
6310
6311 if (indx == 0)
6312 rela.r_addend = relocation - dtpoff_base (info);
6313 else
6314 rela.r_addend = 0;
6315
a6bb11b2 6316 rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_TPREL));
a06ea964
NC		 6317 rela.r_offset = globals->root.sgot->output_section->vma +
6318 globals->root.sgot->output_offset + off;
6319
6320 loc = globals->root.srelgot->contents;
6321 loc += globals->root.srelgot->reloc_count++
6322 * RELOC_SIZE (htab);
6323
cec5225b 6324 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964 6325
cec5225b 6326 bfd_put_NN (output_bfd, rela.r_addend,
a06ea964
NC		 6327 globals->root.sgot->contents + off);
6328 }
6329 else
cec5225b 6330 bfd_put_NN (output_bfd, relocation - tpoff_base (info),
a06ea964
NC		 6331 globals->root.sgot->contents + off);
6332
6333 symbol_got_offset_mark (input_bfd, h, r_symndx);
6334 }
6335 break;
6336
f955cccf 6337 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 6338 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 6339 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
a6bb11b2 6340 case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC:
1ada945d 6341 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
0484b454
RL		 6342 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
6343 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
a06ea964
NC		 6344 if (! symbol_tlsdesc_got_offset_mark_p (input_bfd, h, r_symndx))
6345 {
6346 bfd_boolean need_relocs = FALSE;
6347 int indx = h && h->dynindx != -1 ? h->dynindx : 0;
6348 bfd_vma off = symbol_tlsdesc_got_offset (input_bfd, h, r_symndx);
6349
6350 need_relocs = (h == NULL
6351 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6352 || h->root.type != bfd_link_hash_undefweak);
6353
6354 BFD_ASSERT (globals->root.srelgot != NULL);
6355 BFD_ASSERT (globals->root.sgot != NULL);
6356
6357 if (need_relocs)
6358 {
6359 bfd_byte *loc;
6360 Elf_Internal_Rela rela;
a6bb11b2
YZ		 6361 rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLSDESC));
6362
a06ea964
NC		 6363 rela.r_addend = 0;
6364 rela.r_offset = (globals->root.sgotplt->output_section->vma
6365 + globals->root.sgotplt->output_offset
6366 + off + globals->sgotplt_jump_table_size);
6367
6368 if (indx == 0)
6369 rela.r_addend = relocation - dtpoff_base (info);
6370
6371 /* Allocate the next available slot in the PLT reloc
6372 section to hold our R_AARCH64_TLSDESC, the next
6373 available slot is determined from reloc_count,
6374 which we step. But note, reloc_count was
6375 artifically moved down while allocating slots for
6376 real PLT relocs such that all of the PLT relocs
6377 will fit above the initial reloc_count and the
6378 extra stuff will fit below. */
6379 loc = globals->root.srelplt->contents;
6380 loc += globals->root.srelplt->reloc_count++
6381 * RELOC_SIZE (globals);
6382
cec5225b 6383 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964 6384
cec5225b 6385 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 6386 globals->root.sgotplt->contents + off +
6387 globals->sgotplt_jump_table_size);
cec5225b 6388 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 6389 globals->root.sgotplt->contents + off +
6390 globals->sgotplt_jump_table_size +
6391 GOT_ENTRY_SIZE);
6392 }
6393
6394 symbol_tlsdesc_got_offset_mark (input_bfd, h, r_symndx);
6395 }
6396 break;
a6bb11b2
YZ		 6397 default:
6398 break;
a06ea964
NC		 6399 }
6400
a06ea964
NC		 6401 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
6402 because such sections are not SEC_ALLOC and thus ld.so will
6403 not process them. */
6404 if (unresolved_reloc
6405 && !((input_section->flags & SEC_DEBUGGING) != 0
6406 && h->def_dynamic)
6407 && _bfd_elf_section_offset (output_bfd, info, input_section,
6408 +rel->r_offset) != (bfd_vma) - 1)
6409 {
4eca0228 6410 _bfd_error_handler
695344c0
NC		 6411 /* xgettext:c-format */
6412 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
a06ea964
NC		 6413 input_bfd, input_section, (long) rel->r_offset, howto->name,
6414 h->root.root.string);
6415 return FALSE;
6416 }
6417
6418 if (r != bfd_reloc_ok && r != bfd_reloc_continue)
6419 {
c674f5cd
JW		 6420 bfd_reloc_code_real_type real_r_type
6421 = elfNN_aarch64_bfd_reloc_from_type (r_type);
6422
a06ea964
NC		 6423 switch (r)
6424 {
6425 case bfd_reloc_overflow:
1a72702b
AM		 6426 (*info->callbacks->reloc_overflow)
6427 (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0,
6428 input_bfd, input_section, rel->r_offset);
c674f5cd
JW		 6429 if (real_r_type == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15
6430 || real_r_type == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14)
6431 {
6432 (*info->callbacks->warning)
6433 (info,
6434 _("Too many GOT entries for -fpic, "
6435 "please recompile with -fPIC"),
6436 name, input_bfd, input_section, rel->r_offset);
6437 return FALSE;
6438 }
027e9c75
NC		 6439 /* Overflow can occur when a variable is referenced with a type
6440 that has a larger alignment than the type with which it was
6441 declared. eg:
6442 file1.c: extern int foo; int a (void) { return foo; }
6443 file2.c: char bar, foo, baz;
6444 If the variable is placed into a data section at an offset
6445 that is incompatible with the larger alignment requirement
6446 overflow will occur. (Strictly speaking this is not overflow
6447 but rather an alignment problem, but the bfd_reloc_ error
6448 enum does not have a value to cover that situation).
6449
6450 Try to catch this situation here and provide a more helpful
6451 error message to the user. */
6452 if (addend & ((1 << howto->rightshift) - 1)
6453 /* FIXME: Are we testing all of the appropriate reloc
6454 types here ? */
6455 && (real_r_type == BFD_RELOC_AARCH64_LD_LO19_PCREL
6456 || real_r_type == BFD_RELOC_AARCH64_LDST16_LO12
6457 || real_r_type == BFD_RELOC_AARCH64_LDST32_LO12
6458 || real_r_type == BFD_RELOC_AARCH64_LDST64_LO12
6459 || real_r_type == BFD_RELOC_AARCH64_LDST128_LO12))
6460 {
6461 info->callbacks->warning
6462 (info, _("One possible cause of this error is that the \
6463symbol is being referenced in the indicated code as if it had a larger \
6464alignment than was declared where it was defined."),
6465 name, input_bfd, input_section, rel->r_offset);
6466 }
a06ea964
NC		 6467 break;
6468
6469 case bfd_reloc_undefined:
1a72702b
AM		 6470 (*info->callbacks->undefined_symbol)
6471 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
a06ea964
NC		 6472 break;
6473
6474 case bfd_reloc_outofrange:
6475 error_message = _("out of range");
6476 goto common_error;
6477
6478 case bfd_reloc_notsupported:
6479 error_message = _("unsupported relocation");
6480 goto common_error;
6481
6482 case bfd_reloc_dangerous:
6483 /* error_message should already be set. */
6484 goto common_error;
6485
6486 default:
6487 error_message = _("unknown error");
6488 /* Fall through. */
6489
6490 common_error:
6491 BFD_ASSERT (error_message != NULL);
1a72702b
AM		 6492 (*info->callbacks->reloc_dangerous)
6493 (info, error_message, input_bfd, input_section, rel->r_offset);
a06ea964
NC		 6494 break;
6495 }
6496 }
027e9c75
NC		 6497
6498 if (!save_addend)
6499 addend = 0;
a06ea964
NC		 6500 }
6501
6502 return TRUE;
6503}
6504
6505/* Set the right machine number. */
6506
6507static bfd_boolean
cec5225b 6508elfNN_aarch64_object_p (bfd *abfd)
a06ea964 6509{
cec5225b
YZ		 6510#if ARCH_SIZE == 32
6511 bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64_ilp32);
6512#else
a06ea964 6513 bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64);
cec5225b 6514#endif
a06ea964
NC		 6515 return TRUE;
6516}
6517
6518/* Function to keep AArch64 specific flags in the ELF header. */
6519
6520static bfd_boolean
cec5225b 6521elfNN_aarch64_set_private_flags (bfd *abfd, flagword flags)
a06ea964
NC		 6522{
6523 if (elf_flags_init (abfd) && elf_elfheader (abfd)->e_flags != flags)
6524 {
6525 }
6526 else
6527 {
6528 elf_elfheader (abfd)->e_flags = flags;
6529 elf_flags_init (abfd) = TRUE;
6530 }
6531
6532 return TRUE;
6533}
6534
a06ea964
NC		 6535/* Merge backend specific data from an object file to the output
6536 object file when linking. */
6537
6538static bfd_boolean
50e03d47 6539elfNN_aarch64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
a06ea964 6540{
50e03d47 6541 bfd *obfd = info->output_bfd;
a06ea964
NC		 6542 flagword out_flags;
6543 flagword in_flags;
6544 bfd_boolean flags_compatible = TRUE;
6545 asection *sec;
6546
6547 /* Check if we have the same endianess. */
50e03d47 6548 if (!_bfd_generic_verify_endian_match (ibfd, info))
a06ea964
NC		 6549 return FALSE;
6550
6551 if (!is_aarch64_elf (ibfd) || !is_aarch64_elf (obfd))
6552 return TRUE;
6553
6554 /* The input BFD must have had its flags initialised. */
6555 /* The following seems bogus to me -- The flags are initialized in
6556 the assembler but I don't think an elf_flags_init field is
6557 written into the object. */
6558 /* BFD_ASSERT (elf_flags_init (ibfd)); */
6559
6560 in_flags = elf_elfheader (ibfd)->e_flags;
6561 out_flags = elf_elfheader (obfd)->e_flags;
6562
6563 if (!elf_flags_init (obfd))
6564 {
6565 /* If the input is the default architecture and had the default
6566 flags then do not bother setting the flags for the output
6567 architecture, instead allow future merges to do this. If no
6568 future merges ever set these flags then they will retain their
6569 uninitialised values, which surprise surprise, correspond
6570 to the default values. */
6571 if (bfd_get_arch_info (ibfd)->the_default
6572 && elf_elfheader (ibfd)->e_flags == 0)
6573 return TRUE;
6574
6575 elf_flags_init (obfd) = TRUE;
6576 elf_elfheader (obfd)->e_flags = in_flags;
6577
6578 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
6579 && bfd_get_arch_info (obfd)->the_default)
6580 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
6581 bfd_get_mach (ibfd));
6582
6583 return TRUE;
6584 }
6585
6586 /* Identical flags must be compatible. */
6587 if (in_flags == out_flags)
6588 return TRUE;
6589
6590 /* Check to see if the input BFD actually contains any sections. If
6591 not, its flags may not have been initialised either, but it
6592 cannot actually cause any incompatiblity. Do not short-circuit
6593 dynamic objects; their section list may be emptied by
6594 elf_link_add_object_symbols.
6595
6596 Also check to see if there are no code sections in the input.
6597 In this case there is no need to check for code specific flags.
6598 XXX - do we need to worry about floating-point format compatability
6599 in data sections ? */
6600 if (!(ibfd->flags & DYNAMIC))
6601 {
6602 bfd_boolean null_input_bfd = TRUE;
6603 bfd_boolean only_data_sections = TRUE;
6604
6605 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6606 {
6607 if ((bfd_get_section_flags (ibfd, sec)
6608 & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
6609 == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
6610 only_data_sections = FALSE;
6611
6612 null_input_bfd = FALSE;
6613 break;
6614 }
6615
6616 if (null_input_bfd || only_data_sections)
6617 return TRUE;
6618 }
6619
6620 return flags_compatible;
6621}
6622
6623/* Display the flags field. */
6624
6625static bfd_boolean
cec5225b 6626elfNN_aarch64_print_private_bfd_data (bfd *abfd, void *ptr)
a06ea964
NC		 6627{
6628 FILE *file = (FILE *) ptr;
6629 unsigned long flags;
6630
6631 BFD_ASSERT (abfd != NULL && ptr != NULL);
6632
6633 /* Print normal ELF private data. */
6634 _bfd_elf_print_private_bfd_data (abfd, ptr);
6635
6636 flags = elf_elfheader (abfd)->e_flags;
6637 /* Ignore init flag - it may not be set, despite the flags field
6638 containing valid data. */
6639
6640 /* xgettext:c-format */
6641 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
6642
6643 if (flags)
6644 fprintf (file, _("<Unrecognised flag bits set>"));
6645
6646 fputc ('\n', file);
6647
6648 return TRUE;
6649}
6650
6651/* Update the got entry reference counts for the section being removed. */
6652
6653static bfd_boolean
cec5225b 6654elfNN_aarch64_gc_sweep_hook (bfd *abfd,
cb8af559
NC		 6655 struct bfd_link_info *info,
6656 asection *sec,
6657 const Elf_Internal_Rela * relocs)
a06ea964 6658{
cec5225b 6659 struct elf_aarch64_link_hash_table *htab;
59c108f7
NC		 6660 Elf_Internal_Shdr *symtab_hdr;
6661 struct elf_link_hash_entry **sym_hashes;
cb8af559 6662 struct elf_aarch64_local_symbol *locals;
59c108f7
NC		 6663 const Elf_Internal_Rela *rel, *relend;
6664
0e1862bb 6665 if (bfd_link_relocatable (info))
59c108f7
NC		 6666 return TRUE;
6667
cec5225b 6668 htab = elf_aarch64_hash_table (info);
59c108f7
NC		 6669
6670 if (htab == NULL)
6671 return FALSE;
6672
6673 elf_section_data (sec)->local_dynrel = NULL;
6674
6675 symtab_hdr = &elf_symtab_hdr (abfd);
6676 sym_hashes = elf_sym_hashes (abfd);
6677
cec5225b 6678 locals = elf_aarch64_locals (abfd);
59c108f7
NC		 6679
6680 relend = relocs + sec->reloc_count;
6681 for (rel = relocs; rel < relend; rel++)
6682 {
6683 unsigned long r_symndx;
6684 unsigned int r_type;
6685 struct elf_link_hash_entry *h = NULL;
6686
cec5225b 6687 r_symndx = ELFNN_R_SYM (rel->r_info);
8847944f 6688
59c108f7
NC		 6689 if (r_symndx >= symtab_hdr->sh_info)
6690 {
8847944f 6691
59c108f7
NC		 6692 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6693 while (h->root.type == bfd_link_hash_indirect
6694 || h->root.type == bfd_link_hash_warning)
6695 h = (struct elf_link_hash_entry *) h->root.u.i.link;
59c108f7
NC		 6696 }
6697 else
6698 {
6699 Elf_Internal_Sym *isym;
6700
8847944f 6701 /* A local symbol. */
59c108f7
NC		 6702 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
6703 abfd, r_symndx);
1419bbe5
WN		 6704
6705 /* Check relocation against local STT_GNU_IFUNC symbol. */
6706 if (isym != NULL
6707 && ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
6708 {
6709 h = elfNN_aarch64_get_local_sym_hash (htab, abfd, rel, FALSE);
6710 if (h == NULL)
6711 abort ();
6712 }
6713 }
6714
6715 if (h)
6716 {
6717 struct elf_aarch64_link_hash_entry *eh;
6718 struct elf_dyn_relocs **pp;
6719 struct elf_dyn_relocs *p;
6720
6721 eh = (struct elf_aarch64_link_hash_entry *) h;
6722
6723 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
6724 if (p->sec == sec)
6725 {
6726 /* Everything must go for SEC. */
6727 *pp = p->next;
6728 break;
6729 }
59c108f7
NC		 6730 }
6731
cec5225b 6732 r_type = ELFNN_R_TYPE (rel->r_info);
a6bb11b2 6733 switch (aarch64_tls_transition (abfd,info, r_type, h ,r_symndx))
59c108f7 6734 {
a6bb11b2 6735 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
7bcccb57 6736 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 6737 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
7bcccb57 6738 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
a2e1db00 6739 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
99ad26cb 6740 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
7bcccb57 6741 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
dc8008f5 6742 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 6743 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
f955cccf 6744 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
7bcccb57 6745 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 6746 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
7bcccb57 6747 case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
f955cccf 6748 case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12:
1ada945d 6749 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
0484b454
RL		 6750 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
6751 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
a6bb11b2 6752 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
7bcccb57 6753 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 6754 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
7ba7cfe4 6755 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 6756 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
a6bb11b2 6757 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a6bb11b2 6758 case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
7bcccb57 6759 case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
043bf05a 6760 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
3b957e5b
RL		 6761 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
6762 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
73f925cc 6763 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 6764 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 6765 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
a6bb11b2 6766 if (h != NULL)
59c108f7
NC		 6767 {
6768 if (h->got.refcount > 0)
6769 h->got.refcount -= 1;
1419bbe5
WN		 6770
6771 if (h->type == STT_GNU_IFUNC)
6772 {
6773 if (h->plt.refcount > 0)
6774 h->plt.refcount -= 1;
6775 }
59c108f7 6776 }
cb8af559 6777 else if (locals != NULL)
59c108f7 6778 {
cb8af559
NC		 6779 if (locals[r_symndx].got_refcount > 0)
6780 locals[r_symndx].got_refcount -= 1;
59c108f7
NC		 6781 }
6782 break;
6783
a6bb11b2
YZ		 6784 case BFD_RELOC_AARCH64_CALL26:
6785 case BFD_RELOC_AARCH64_JUMP26:
6786 /* If this is a local symbol then we resolve it
6787 directly without creating a PLT entry. */
59c108f7
NC		 6788 if (h == NULL)
6789 continue;
6790
6791 if (h->plt.refcount > 0)
6792 h->plt.refcount -= 1;
6793 break;
6794
6353d82b 6795 case BFD_RELOC_AARCH64_ADD_LO12:
ce336788
JW		 6796 case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
6797 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
6798 case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
6353d82b
JW		 6799 case BFD_RELOC_AARCH64_LDST128_LO12:
6800 case BFD_RELOC_AARCH64_LDST16_LO12:
6801 case BFD_RELOC_AARCH64_LDST32_LO12:
6802 case BFD_RELOC_AARCH64_LDST64_LO12:
6803 case BFD_RELOC_AARCH64_LDST8_LO12:
6804 case BFD_RELOC_AARCH64_LD_LO19_PCREL:
614b09ce
JW		 6805 case BFD_RELOC_AARCH64_MOVW_G0_NC:
6806 case BFD_RELOC_AARCH64_MOVW_G1_NC:
6807 case BFD_RELOC_AARCH64_MOVW_G2_NC:
6808 case BFD_RELOC_AARCH64_MOVW_G3:
a6bb11b2 6809 case BFD_RELOC_AARCH64_NN:
6353d82b 6810 if (h != NULL && !bfd_link_pic (info))
59c108f7
NC		 6811 {
6812 if (h->plt.refcount > 0)
6813 h->plt.refcount -= 1;
6814 }
6815 break;
cec5225b 6816
59c108f7
NC		 6817 default:
6818 break;
6819 }
6820 }
6821
a06ea964
NC		 6822 return TRUE;
6823}
6824
6353d82b
JW		 6825/* Return true if we need copy relocation against EH. */
6826
6827static bfd_boolean
6828need_copy_relocation_p (struct elf_aarch64_link_hash_entry *eh)
6829{
6830 struct elf_dyn_relocs *p;
6831 asection *s;
6832
6833 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6834 {
6835 /* If there is any pc-relative reference, we need to keep copy relocation
6836 to avoid propagating the relocation into runtime that current glibc
6837 does not support. */
6838 if (p->pc_count)
6839 return TRUE;
6840
6841 s = p->sec->output_section;
6842 /* Need copy relocation if it's against read-only section. */
6843 if (s != NULL && (s->flags & SEC_READONLY) != 0)
6844 return TRUE;
6845 }
6846
6847 return FALSE;
6848}
6849
a06ea964
NC		 6850/* Adjust a symbol defined by a dynamic object and referenced by a
6851 regular object. The current definition is in some section of the
6852 dynamic object, but we're not including those sections. We have to
6853 change the definition to something the rest of the link can
6854 understand. */
6855
6856static bfd_boolean
cec5225b 6857elfNN_aarch64_adjust_dynamic_symbol (struct bfd_link_info *info,
a06ea964
NC		 6858 struct elf_link_hash_entry *h)
6859{
cec5225b 6860 struct elf_aarch64_link_hash_table *htab;
5474d94f 6861 asection *s, *srel;
a06ea964
NC		 6862
6863 /* If this is a function, put it in the procedure linkage table. We
6864 will fill in the contents of the procedure linkage table later,
6865 when we know the address of the .got section. */
1419bbe5 6866 if (h->type == STT_FUNC || h->type == STT_GNU_IFUNC || h->needs_plt)
a06ea964
NC		 6867 {
6868 if (h->plt.refcount <= 0
1419bbe5
WN		 6869 || (h->type != STT_GNU_IFUNC
6870 && (SYMBOL_CALLS_LOCAL (info, h)
6871 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
6872 && h->root.type == bfd_link_hash_undefweak))))
a06ea964
NC		 6873 {
6874 /* This case can occur if we saw a CALL26 reloc in
6875 an input file, but the symbol wasn't referred to
6876 by a dynamic object or all references were
6877 garbage collected. In which case we can end up
6878 resolving. */
6879 h->plt.offset = (bfd_vma) - 1;
6880 h->needs_plt = 0;
6881 }
6882
6883 return TRUE;
6884 }
6885 else
80de0c6d 6886 /* Otherwise, reset to -1. */
a06ea964
NC		 6887 h->plt.offset = (bfd_vma) - 1;
6888
6889
6890 /* If this is a weak symbol, and there is a real definition, the
6891 processor independent code will have arranged for us to see the
6892 real definition first, and we can just use the same value. */
6893 if (h->u.weakdef != NULL)
6894 {
6895 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
6896 || h->u.weakdef->root.type == bfd_link_hash_defweak);
6897 h->root.u.def.section = h->u.weakdef->root.u.def.section;
6898 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6899 if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
6900 h->non_got_ref = h->u.weakdef->non_got_ref;
6901 return TRUE;
6902 }
6903
6904 /* If we are creating a shared library, we must presume that the
6905 only references to the symbol are via the global offset table.
6906 For such cases we need not do anything here; the relocations will
6907 be handled correctly by relocate_section. */
0e1862bb 6908 if (bfd_link_pic (info))
a06ea964
NC		 6909 return TRUE;
6910
6911 /* If there are no references to this symbol that do not use the
6912 GOT, we don't need to generate a copy reloc. */
6913 if (!h->non_got_ref)
6914 return TRUE;
6915
6916 /* If -z nocopyreloc was given, we won't generate them either. */
6917 if (info->nocopyreloc)
6918 {
6919 h->non_got_ref = 0;
6920 return TRUE;
6921 }
6922
6353d82b
JW		 6923 if (ELIMINATE_COPY_RELOCS)
6924 {
6925 struct elf_aarch64_link_hash_entry *eh;
6926 /* If we didn't find any dynamic relocs in read-only sections, then
6927 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
6928 eh = (struct elf_aarch64_link_hash_entry *) h;
6929 if (!need_copy_relocation_p (eh))
6930 {
6931 h->non_got_ref = 0;
6932 return TRUE;
6933 }
6934 }
6935
a06ea964
NC		 6936 /* We must allocate the symbol in our .dynbss section, which will
6937 become part of the .bss section of the executable. There will be
6938 an entry for this symbol in the .dynsym section. The dynamic
6939 object will contain position independent code, so all references
6940 from the dynamic object to this symbol will go through the global
6941 offset table. The dynamic linker will use the .dynsym entry to
6942 determine the address it must put in the global offset table, so
6943 both the dynamic object and the regular object will refer to the
6944 same memory location for the variable. */
6945
cec5225b 6946 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 6947
6948 /* We must generate a R_AARCH64_COPY reloc to tell the dynamic linker
6949 to copy the initial value out of the dynamic object and into the
6950 runtime process image. */
5474d94f
AM		 6951 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
6952 {
6953 s = htab->root.sdynrelro;
6954 srel = htab->root.sreldynrelro;
6955 }
6956 else
6957 {
6958 s = htab->root.sdynbss;
6959 srel = htab->root.srelbss;
6960 }
a06ea964
NC		 6961 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6962 {
5474d94f 6963 srel->size += RELOC_SIZE (htab);
a06ea964
NC		 6964 h->needs_copy = 1;
6965 }
6966
6cabe1ea 6967 return _bfd_elf_adjust_dynamic_copy (info, h, s);
a06ea964
NC		 6968
6969}
6970
6971static bfd_boolean
cec5225b 6972elfNN_aarch64_allocate_local_symbols (bfd *abfd, unsigned number)
a06ea964
NC		 6973{
6974 struct elf_aarch64_local_symbol *locals;
cec5225b 6975 locals = elf_aarch64_locals (abfd);
a06ea964
NC		 6976 if (locals == NULL)
6977 {
6978 locals = (struct elf_aarch64_local_symbol *)
6979 bfd_zalloc (abfd, number * sizeof (struct elf_aarch64_local_symbol));
6980 if (locals == NULL)
6981 return FALSE;
cec5225b 6982 elf_aarch64_locals (abfd) = locals;
a06ea964
NC		 6983 }
6984 return TRUE;
6985}
6986
cc0efaa8
MS		 6987/* Create the .got section to hold the global offset table. */
6988
6989static bfd_boolean
6990aarch64_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
6991{
6992 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
6993 flagword flags;
6994 asection *s;
6995 struct elf_link_hash_entry *h;
6996 struct elf_link_hash_table *htab = elf_hash_table (info);
6997
6998 /* This function may be called more than once. */
ce558b89 6999 if (htab->sgot != NULL)
cc0efaa8
MS		 7000 return TRUE;
7001
7002 flags = bed->dynamic_sec_flags;
7003
7004 s = bfd_make_section_anyway_with_flags (abfd,
7005 (bed->rela_plts_and_copies_p
7006 ? ".rela.got" : ".rel.got"),
7007 (bed->dynamic_sec_flags
7008 | SEC_READONLY));
7009 if (s == NULL
7010 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
7011 return FALSE;
7012 htab->srelgot = s;
7013
7014 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
7015 if (s == NULL
7016 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
7017 return FALSE;
7018 htab->sgot = s;
7019 htab->sgot->size += GOT_ENTRY_SIZE;
7020
7021 if (bed->want_got_sym)
7022 {
7023 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
7024 (or .got.plt) section. We don't do this in the linker script
7025 because we don't want to define the symbol if we are not creating
7026 a global offset table. */
7027 h = _bfd_elf_define_linkage_sym (abfd, info, s,
7028 "_GLOBAL_OFFSET_TABLE_");
7029 elf_hash_table (info)->hgot = h;
7030 if (h == NULL)
7031 return FALSE;
7032 }
7033
7034 if (bed->want_got_plt)
7035 {
7036 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
7037 if (s == NULL
7038 || !bfd_set_section_alignment (abfd, s,
7039 bed->s->log_file_align))
7040 return FALSE;
7041 htab->sgotplt = s;
7042 }
7043
7044 /* The first bit of the global offset table is the header. */
7045 s->size += bed->got_header_size;
7046
7047 return TRUE;
7048}
7049
a06ea964
NC		 7050/* Look through the relocs for a section during the first phase. */
7051
7052static bfd_boolean
cec5225b 7053elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info,
a06ea964
NC		 7054 asection *sec, const Elf_Internal_Rela *relocs)
7055{
7056 Elf_Internal_Shdr *symtab_hdr;
7057 struct elf_link_hash_entry **sym_hashes;
7058 const Elf_Internal_Rela *rel;
7059 const Elf_Internal_Rela *rel_end;
7060 asection *sreloc;
7061
cec5225b 7062 struct elf_aarch64_link_hash_table *htab;
a06ea964 7063
0e1862bb 7064 if (bfd_link_relocatable (info))
a06ea964
NC		 7065 return TRUE;
7066
7067 BFD_ASSERT (is_aarch64_elf (abfd));
7068
cec5225b 7069 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 7070 sreloc = NULL;
7071
7072 symtab_hdr = &elf_symtab_hdr (abfd);
7073 sym_hashes = elf_sym_hashes (abfd);
a06ea964
NC		 7074
7075 rel_end = relocs + sec->reloc_count;
7076 for (rel = relocs; rel < rel_end; rel++)
7077 {
7078 struct elf_link_hash_entry *h;
7079 unsigned long r_symndx;
7080 unsigned int r_type;
a6bb11b2 7081 bfd_reloc_code_real_type bfd_r_type;
1419bbe5 7082 Elf_Internal_Sym *isym;
a06ea964 7083
cec5225b
YZ		 7084 r_symndx = ELFNN_R_SYM (rel->r_info);
7085 r_type = ELFNN_R_TYPE (rel->r_info);
a06ea964
NC		 7086
7087 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
7088 {
695344c0 7089 /* xgettext:c-format */
4eca0228 7090 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
a06ea964
NC		 7091 return FALSE;
7092 }
7093
ed5acf27 7094 if (r_symndx < symtab_hdr->sh_info)
1419bbe5
WN		 7095 {
7096 /* A local symbol. */
7097 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
7098 abfd, r_symndx);
7099 if (isym == NULL)
7100 return FALSE;
7101
7102 /* Check relocation against local STT_GNU_IFUNC symbol. */
7103 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
7104 {
7105 h = elfNN_aarch64_get_local_sym_hash (htab, abfd, rel,
7106 TRUE);
7107 if (h == NULL)
7108 return FALSE;
7109
7110 /* Fake a STT_GNU_IFUNC symbol. */
7111 h->type = STT_GNU_IFUNC;
7112 h->def_regular = 1;
7113 h->ref_regular = 1;
7114 h->forced_local = 1;
7115 h->root.type = bfd_link_hash_defined;
7116 }
7117 else
7118 h = NULL;
7119 }
a06ea964
NC		 7120 else
7121 {
7122 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7123 while (h->root.type == bfd_link_hash_indirect
7124 || h->root.type == bfd_link_hash_warning)
7125 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 7126
7127 /* PR15323, ref flags aren't set for references in the same
7128 object. */
bc4e12de 7129 h->root.non_ir_ref_regular = 1;
a06ea964
NC		 7130 }
7131
7132 /* Could be done earlier, if h were already available. */
a6bb11b2 7133 bfd_r_type = aarch64_tls_transition (abfd, info, r_type, h, r_symndx);
a06ea964 7134
1419bbe5
WN		 7135 if (h != NULL)
7136 {
18f822a0
JW		 7137 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
7138 This shows up in particular in an R_AARCH64_PREL64 in large model
7139 when calculating the pc-relative address to .got section which is
7140 used to initialize the gp register. */
7141 if (h->root.root.string
7142 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
7143 {
7144 if (htab->root.dynobj == NULL)
7145 htab->root.dynobj = abfd;
7146
7147 if (! aarch64_elf_create_got_section (htab->root.dynobj, info))
7148 return FALSE;
7149
7150 BFD_ASSERT (h == htab->root.hgot);
7151 }
7152
1419bbe5
WN		 7153 /* Create the ifunc sections for static executables. If we
7154 never see an indirect function symbol nor we are building
7155 a static executable, those sections will be empty and
7156 won't appear in output. */
7157 switch (bfd_r_type)
7158 {
7159 default:
7160 break;
7161
ce336788
JW		 7162 case BFD_RELOC_AARCH64_ADD_LO12:
7163 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
7164 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
1419bbe5 7165 case BFD_RELOC_AARCH64_CALL26:
ce336788 7166 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
1419bbe5 7167 case BFD_RELOC_AARCH64_JUMP26:
7018c030 7168 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
1419bbe5 7169 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
a2e1db00 7170 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
99ad26cb 7171 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
1419bbe5 7172 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
dc8008f5 7173 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 7174 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
ce336788 7175 case BFD_RELOC_AARCH64_NN:
1419bbe5
WN		 7176 if (htab->root.dynobj == NULL)
7177 htab->root.dynobj = abfd;
7178 if (!_bfd_elf_create_ifunc_sections (htab->root.dynobj, info))
7179 return FALSE;
7180 break;
7181 }
7182
2d0ca824 7183 /* It is referenced by a non-shared object. */
1419bbe5 7184 h->ref_regular = 1;
bc4e12de 7185 h->root.non_ir_ref_regular = 1;
1419bbe5
WN		 7186 }
7187
a6bb11b2 7188 switch (bfd_r_type)
a06ea964 7189 {
6353d82b
JW		 7190 case BFD_RELOC_AARCH64_MOVW_G0_NC:
7191 case BFD_RELOC_AARCH64_MOVW_G1_NC:
7192 case BFD_RELOC_AARCH64_MOVW_G2_NC:
7193 case BFD_RELOC_AARCH64_MOVW_G3:
7194 if (bfd_link_pic (info))
7195 {
7196 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
7197 _bfd_error_handler
7198 /* xgettext:c-format */
7199 (_("%B: relocation %s against `%s' can not be used when making "
7200 "a shared object; recompile with -fPIC"),
7201 abfd, elfNN_aarch64_howto_table[howto_index].name,
7202 (h) ? h->root.root.string : "a local symbol");
7203 bfd_set_error (bfd_error_bad_value);
7204 return FALSE;
7205 }
7206 /* Fall through. */
7207
7208 case BFD_RELOC_AARCH64_16_PCREL:
7209 case BFD_RELOC_AARCH64_32_PCREL:
7210 case BFD_RELOC_AARCH64_64_PCREL:
7211 case BFD_RELOC_AARCH64_ADD_LO12:
7212 case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
7213 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
7214 case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
7215 case BFD_RELOC_AARCH64_LDST128_LO12:
7216 case BFD_RELOC_AARCH64_LDST16_LO12:
7217 case BFD_RELOC_AARCH64_LDST32_LO12:
7218 case BFD_RELOC_AARCH64_LDST64_LO12:
7219 case BFD_RELOC_AARCH64_LDST8_LO12:
7220 case BFD_RELOC_AARCH64_LD_LO19_PCREL:
7221 if (h == NULL || bfd_link_pic (info))
7222 break;
7223 /* Fall through. */
7224
a6bb11b2 7225 case BFD_RELOC_AARCH64_NN:
a06ea964
NC		 7226
7227 /* We don't need to handle relocs into sections not going into
7228 the "real" output. */
7229 if ((sec->flags & SEC_ALLOC) == 0)
7230 break;
7231
7232 if (h != NULL)
7233 {
0e1862bb 7234 if (!bfd_link_pic (info))
a06ea964
NC		 7235 h->non_got_ref = 1;
7236
7237 h->plt.refcount += 1;
7238 h->pointer_equality_needed = 1;
7239 }
7240
7241 /* No need to do anything if we're not creating a shared
7242 object. */
6353d82b
JW		 7243 if (!(bfd_link_pic (info)
7244 /* If on the other hand, we are creating an executable, we
7245 may need to keep relocations for symbols satisfied by a
7246 dynamic library if we manage to avoid copy relocs for the
7247 symbol.
7248
7249 NOTE: Currently, there is no support of copy relocs
7250 elimination on pc-relative relocation types, because there is
7251 no dynamic relocation support for them in glibc. We still
7252 record the dynamic symbol reference for them. This is
7253 because one symbol may be referenced by both absolute
7254 relocation (for example, BFD_RELOC_AARCH64_NN) and
7255 pc-relative relocation. We need full symbol reference
7256 information to make correct decision later in
7257 elfNN_aarch64_adjust_dynamic_symbol. */
7258 || (ELIMINATE_COPY_RELOCS
7259 && !bfd_link_pic (info)
7260 && h != NULL
7261 && (h->root.type == bfd_link_hash_defweak
7262 || !h->def_regular))))
a06ea964
NC		 7263 break;
7264
7265 {
7266 struct elf_dyn_relocs *p;
7267 struct elf_dyn_relocs **head;
6353d82b 7268 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
a06ea964
NC		 7269
7270 /* We must copy these reloc types into the output file.
7271 Create a reloc section in dynobj and make room for
7272 this reloc. */
7273 if (sreloc == NULL)
7274 {
7275 if (htab->root.dynobj == NULL)
7276 htab->root.dynobj = abfd;
7277
7278 sreloc = _bfd_elf_make_dynamic_reloc_section
0608afa7 7279 (sec, htab->root.dynobj, LOG_FILE_ALIGN, abfd, /*rela? */ TRUE);
a06ea964
NC		 7280
7281 if (sreloc == NULL)
7282 return FALSE;
7283 }
7284
7285 /* If this is a global symbol, we count the number of
7286 relocations we need for this symbol. */
7287 if (h != NULL)
7288 {
cec5225b
YZ		 7289 struct elf_aarch64_link_hash_entry *eh;
7290 eh = (struct elf_aarch64_link_hash_entry *) h;
a06ea964
NC		 7291 head = &eh->dyn_relocs;
7292 }
7293 else
7294 {
7295 /* Track dynamic relocs needed for local syms too.
7296 We really need local syms available to do this
7297 easily. Oh well. */
7298
7299 asection *s;
7300 void **vpp;
a06ea964
NC		 7301
7302 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
7303 abfd, r_symndx);
7304 if (isym == NULL)
7305 return FALSE;
7306
7307 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
7308 if (s == NULL)
7309 s = sec;
7310
7311 /* Beware of type punned pointers vs strict aliasing
7312 rules. */
7313 vpp = &(elf_section_data (s)->local_dynrel);
7314 head = (struct elf_dyn_relocs **) vpp;
7315 }
7316
7317 p = *head;
7318 if (p == NULL || p->sec != sec)
7319 {
7320 bfd_size_type amt = sizeof *p;
7321 p = ((struct elf_dyn_relocs *)
7322 bfd_zalloc (htab->root.dynobj, amt));
7323 if (p == NULL)
7324 return FALSE;
7325 p->next = *head;
7326 *head = p;
7327 p->sec = sec;
7328 }
7329
7330 p->count += 1;
7331
6353d82b
JW		 7332 if (elfNN_aarch64_howto_table[howto_index].pc_relative)
7333 p->pc_count += 1;
a06ea964
NC		 7334 }
7335 break;
7336
7337 /* RR: We probably want to keep a consistency check that
7338 there are no dangling GOT_PAGE relocs. */
a6bb11b2 7339 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
7bcccb57 7340 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 7341 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
7bcccb57 7342 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
a2e1db00 7343 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
99ad26cb 7344 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
7bcccb57 7345 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
dc8008f5 7346 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 7347 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
f955cccf 7348 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
7bcccb57 7349 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 7350 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
7bcccb57 7351 case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
f955cccf 7352 case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12:
1ada945d 7353 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
0484b454
RL		 7354 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
7355 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
a6bb11b2 7356 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
7bcccb57 7357 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 7358 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
7ba7cfe4 7359 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 7360 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
a6bb11b2 7361 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a6bb11b2 7362 case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
7bcccb57 7363 case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
043bf05a 7364 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
3b957e5b
RL		 7365 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
7366 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
73f925cc 7367 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 7368 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 7369 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
b7a944fe
RL		 7370 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
7371 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
7372 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
a06ea964
NC		 7373 {
7374 unsigned got_type;
7375 unsigned old_got_type;
7376
a6bb11b2 7377 got_type = aarch64_reloc_got_type (bfd_r_type);
a06ea964
NC		 7378
7379 if (h)
7380 {
7381 h->got.refcount += 1;
cec5225b 7382 old_got_type = elf_aarch64_hash_entry (h)->got_type;
a06ea964
NC		 7383 }
7384 else
7385 {
7386 struct elf_aarch64_local_symbol *locals;
7387
cec5225b 7388 if (!elfNN_aarch64_allocate_local_symbols
a06ea964
NC		 7389 (abfd, symtab_hdr->sh_info))
7390 return FALSE;
7391
cec5225b 7392 locals = elf_aarch64_locals (abfd);
a06ea964
NC		 7393 BFD_ASSERT (r_symndx < symtab_hdr->sh_info);
7394 locals[r_symndx].got_refcount += 1;
7395 old_got_type = locals[r_symndx].got_type;
7396 }
7397
7398 /* If a variable is accessed with both general dynamic TLS
7399 methods, two slots may be created. */
7400 if (GOT_TLS_GD_ANY_P (old_got_type) && GOT_TLS_GD_ANY_P (got_type))
7401 got_type |= old_got_type;
7402
7403 /* We will already have issued an error message if there
7404 is a TLS/non-TLS mismatch, based on the symbol type.
7405 So just combine any TLS types needed. */
7406 if (old_got_type != GOT_UNKNOWN && old_got_type != GOT_NORMAL
7407 && got_type != GOT_NORMAL)
7408 got_type |= old_got_type;
7409
7410 /* If the symbol is accessed by both IE and GD methods, we
7411 are able to relax. Turn off the GD flag, without
7412 messing up with any other kind of TLS types that may be
7413 involved. */
7414 if ((got_type & GOT_TLS_IE) && GOT_TLS_GD_ANY_P (got_type))
7415 got_type &= ~ (GOT_TLSDESC_GD | GOT_TLS_GD);
7416
7417 if (old_got_type != got_type)
7418 {
7419 if (h != NULL)
cec5225b 7420 elf_aarch64_hash_entry (h)->got_type = got_type;
a06ea964
NC		 7421 else
7422 {
7423 struct elf_aarch64_local_symbol *locals;
cec5225b 7424 locals = elf_aarch64_locals (abfd);
a06ea964
NC		 7425 BFD_ASSERT (r_symndx < symtab_hdr->sh_info);
7426 locals[r_symndx].got_type = got_type;
7427 }
7428 }
7429
cc0efaa8
MS		 7430 if (htab->root.dynobj == NULL)
7431 htab->root.dynobj = abfd;
7432 if (! aarch64_elf_create_got_section (htab->root.dynobj, info))
7433 return FALSE;
a06ea964
NC		 7434 break;
7435 }
7436
a6bb11b2
YZ		 7437 case BFD_RELOC_AARCH64_CALL26:
7438 case BFD_RELOC_AARCH64_JUMP26:
a06ea964
NC		 7439 /* If this is a local symbol then we resolve it
7440 directly without creating a PLT entry. */
7441 if (h == NULL)
7442 continue;
7443
7444 h->needs_plt = 1;
1419bbe5
WN		 7445 if (h->plt.refcount <= 0)
7446 h->plt.refcount = 1;
7447 else
7448 h->plt.refcount += 1;
a06ea964 7449 break;
a6bb11b2
YZ		 7450
7451 default:
7452 break;
a06ea964
NC		 7453 }
7454 }
a6bb11b2 7455
a06ea964
NC		 7456 return TRUE;
7457}
7458
7459/* Treat mapping symbols as special target symbols. */
7460
7461static bfd_boolean
cec5225b 7462elfNN_aarch64_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED,
a06ea964
NC		 7463 asymbol *sym)
7464{
7465 return bfd_is_aarch64_special_symbol_name (sym->name,
7466 BFD_AARCH64_SPECIAL_SYM_TYPE_ANY);
7467}
7468
7469/* This is a copy of elf_find_function () from elf.c except that
7470 AArch64 mapping symbols are ignored when looking for function names. */
7471
7472static bfd_boolean
7473aarch64_elf_find_function (bfd *abfd ATTRIBUTE_UNUSED,
a06ea964 7474 asymbol **symbols,
fb167eb2 7475 asection *section,
a06ea964
NC		 7476 bfd_vma offset,
7477 const char **filename_ptr,
7478 const char **functionname_ptr)
7479{
7480 const char *filename = NULL;
7481 asymbol *func = NULL;
7482 bfd_vma low_func = 0;
7483 asymbol **p;
7484
7485 for (p = symbols; *p != NULL; p++)
7486 {
7487 elf_symbol_type *q;
7488
7489 q = (elf_symbol_type *) * p;
7490
7491 switch (ELF_ST_TYPE (q->internal_elf_sym.st_info))
7492 {
7493 default:
7494 break;
7495 case STT_FILE:
7496 filename = bfd_asymbol_name (&q->symbol);
7497 break;
7498 case STT_FUNC:
7499 case STT_NOTYPE:
7500 /* Skip mapping symbols. */
7501 if ((q->symbol.flags & BSF_LOCAL)
7502 && (bfd_is_aarch64_special_symbol_name
7503 (q->symbol.name, BFD_AARCH64_SPECIAL_SYM_TYPE_ANY)))
7504 continue;
7505 /* Fall through. */
7506 if (bfd_get_section (&q->symbol) == section
7507 && q->symbol.value >= low_func && q->symbol.value <= offset)
7508 {
7509 func = (asymbol *) q;
7510 low_func = q->symbol.value;
7511 }
7512 break;
7513 }
7514 }
7515
7516 if (func == NULL)
7517 return FALSE;
7518
7519 if (filename_ptr)
7520 *filename_ptr = filename;
7521 if (functionname_ptr)
7522 *functionname_ptr = bfd_asymbol_name (func);
7523
7524 return TRUE;
7525}
7526
7527
7528/* Find the nearest line to a particular section and offset, for error
7529 reporting. This code is a duplicate of the code in elf.c, except
7530 that it uses aarch64_elf_find_function. */
7531
7532static bfd_boolean
cec5225b 7533elfNN_aarch64_find_nearest_line (bfd *abfd,
a06ea964 7534 asymbol **symbols,
fb167eb2 7535 asection *section,
a06ea964
NC		 7536 bfd_vma offset,
7537 const char **filename_ptr,
7538 const char **functionname_ptr,
fb167eb2
AM		 7539 unsigned int *line_ptr,
7540 unsigned int *discriminator_ptr)
a06ea964
NC		 7541{
7542 bfd_boolean found = FALSE;
7543
fb167eb2 7544 if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
a06ea964 7545 filename_ptr, functionname_ptr,
fb167eb2
AM		 7546 line_ptr, discriminator_ptr,
7547 dwarf_debug_sections, 0,
a06ea964
NC		 7548 &elf_tdata (abfd)->dwarf2_find_line_info))
7549 {
7550 if (!*functionname_ptr)
fb167eb2 7551 aarch64_elf_find_function (abfd, symbols, section, offset,
a06ea964
NC		 7552 *filename_ptr ? NULL : filename_ptr,
7553 functionname_ptr);
7554
7555 return TRUE;
7556 }
7557
fb167eb2
AM		 7558 /* Skip _bfd_dwarf1_find_nearest_line since no known AArch64
7559 toolchain uses DWARF1. */
7560
a06ea964
NC		 7561 if (!_bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
7562 &found, filename_ptr,
7563 functionname_ptr, line_ptr,
7564 &elf_tdata (abfd)->line_info))
7565 return FALSE;
7566
7567 if (found && (*functionname_ptr || *line_ptr))
7568 return TRUE;
7569
7570 if (symbols == NULL)
7571 return FALSE;
7572
fb167eb2 7573 if (!aarch64_elf_find_function (abfd, symbols, section, offset,
a06ea964
NC		 7574 filename_ptr, functionname_ptr))
7575 return FALSE;
7576
7577 *line_ptr = 0;
7578 return TRUE;
7579}
7580
7581static bfd_boolean
cec5225b 7582elfNN_aarch64_find_inliner_info (bfd *abfd,
a06ea964
NC		 7583 const char **filename_ptr,
7584 const char **functionname_ptr,
7585 unsigned int *line_ptr)
7586{
7587 bfd_boolean found;
7588 found = _bfd_dwarf2_find_inliner_info
7589 (abfd, filename_ptr,
7590 functionname_ptr, line_ptr, &elf_tdata (abfd)->dwarf2_find_line_info);
7591 return found;
7592}
7593
7594
7595static void
cec5225b 7596elfNN_aarch64_post_process_headers (bfd *abfd,
1419bbe5 7597 struct bfd_link_info *link_info)
a06ea964
NC		 7598{
7599 Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */
7600
7601 i_ehdrp = elf_elfheader (abfd);
a06ea964 7602 i_ehdrp->e_ident[EI_ABIVERSION] = AARCH64_ELF_ABI_VERSION;
1419bbe5 7603
78245035 7604 _bfd_elf_post_process_headers (abfd, link_info);
a06ea964
NC		 7605}
7606
7607static enum elf_reloc_type_class
cec5225b 7608elfNN_aarch64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
7e612e98
AM		 7609 const asection *rel_sec ATTRIBUTE_UNUSED,
7610 const Elf_Internal_Rela *rela)
a06ea964 7611{
cec5225b 7612 switch ((int) ELFNN_R_TYPE (rela->r_info))
a06ea964 7613 {
a6bb11b2 7614 case AARCH64_R (RELATIVE):
a06ea964 7615 return reloc_class_relative;
a6bb11b2 7616 case AARCH64_R (JUMP_SLOT):
a06ea964 7617 return reloc_class_plt;
a6bb11b2 7618 case AARCH64_R (COPY):
a06ea964
NC		 7619 return reloc_class_copy;
7620 default:
7621 return reloc_class_normal;
7622 }
7623}
7624
a06ea964
NC		 7625/* Handle an AArch64 specific section when reading an object file. This is
7626 called when bfd_section_from_shdr finds a section with an unknown
7627 type. */
7628
7629static bfd_boolean
cec5225b 7630elfNN_aarch64_section_from_shdr (bfd *abfd,
a06ea964
NC		 7631 Elf_Internal_Shdr *hdr,
7632 const char *name, int shindex)
7633{
7634 /* There ought to be a place to keep ELF backend specific flags, but
7635 at the moment there isn't one. We just keep track of the
7636 sections by their name, instead. Fortunately, the ABI gives
7637 names for all the AArch64 specific sections, so we will probably get
7638 away with this. */
7639 switch (hdr->sh_type)
7640 {
7641 case SHT_AARCH64_ATTRIBUTES:
7642 break;
7643
7644 default:
7645 return FALSE;
7646 }
7647
7648 if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
7649 return FALSE;
7650
7651 return TRUE;
7652}
7653
7654/* A structure used to record a list of sections, independently
7655 of the next and prev fields in the asection structure. */
7656typedef struct section_list
7657{
7658 asection *sec;
7659 struct section_list *next;
7660 struct section_list *prev;
7661}
7662section_list;
7663
7664/* Unfortunately we need to keep a list of sections for which
7665 an _aarch64_elf_section_data structure has been allocated. This
cec5225b 7666 is because it is possible for functions like elfNN_aarch64_write_section
a06ea964
NC		 7667 to be called on a section which has had an elf_data_structure
7668 allocated for it (and so the used_by_bfd field is valid) but
7669 for which the AArch64 extended version of this structure - the
7670 _aarch64_elf_section_data structure - has not been allocated. */
7671static section_list *sections_with_aarch64_elf_section_data = NULL;
7672
7673static void
7674record_section_with_aarch64_elf_section_data (asection *sec)
7675{
7676 struct section_list *entry;
7677
7678 entry = bfd_malloc (sizeof (*entry));
7679 if (entry == NULL)
7680 return;
7681 entry->sec = sec;
7682 entry->next = sections_with_aarch64_elf_section_data;
7683 entry->prev = NULL;
7684 if (entry->next != NULL)
7685 entry->next->prev = entry;
7686 sections_with_aarch64_elf_section_data = entry;
7687}
7688
7689static struct section_list *
7690find_aarch64_elf_section_entry (asection *sec)
7691{
7692 struct section_list *entry;
7693 static struct section_list *last_entry = NULL;
7694
7695 /* This is a short cut for the typical case where the sections are added
7696 to the sections_with_aarch64_elf_section_data list in forward order and
7697 then looked up here in backwards order. This makes a real difference
7698 to the ld-srec/sec64k.exp linker test. */
7699 entry = sections_with_aarch64_elf_section_data;
7700 if (last_entry != NULL)
7701 {
7702 if (last_entry->sec == sec)
7703 entry = last_entry;
7704 else if (last_entry->next != NULL && last_entry->next->sec == sec)
7705 entry = last_entry->next;
7706 }
7707
7708 for (; entry; entry = entry->next)
7709 if (entry->sec == sec)
7710 break;
7711
7712 if (entry)
7713 /* Record the entry prior to this one - it is the entry we are
7714 most likely to want to locate next time. Also this way if we
7715 have been called from
7716 unrecord_section_with_aarch64_elf_section_data () we will not
7717 be caching a pointer that is about to be freed. */
7718 last_entry = entry->prev;
7719
7720 return entry;
7721}
7722
7723static void
7724unrecord_section_with_aarch64_elf_section_data (asection *sec)
7725{
7726 struct section_list *entry;
7727
7728 entry = find_aarch64_elf_section_entry (sec);
7729
7730 if (entry)
7731 {
7732 if (entry->prev != NULL)
7733 entry->prev->next = entry->next;
7734 if (entry->next != NULL)
7735 entry->next->prev = entry->prev;
7736 if (entry == sections_with_aarch64_elf_section_data)
7737 sections_with_aarch64_elf_section_data = entry->next;
7738 free (entry);
7739 }
7740}
7741
7742
7743typedef struct
7744{
7745 void *finfo;
7746 struct bfd_link_info *info;
7747 asection *sec;
7748 int sec_shndx;
7749 int (*func) (void *, const char *, Elf_Internal_Sym *,
7750 asection *, struct elf_link_hash_entry *);
7751} output_arch_syminfo;
7752
7753enum map_symbol_type
7754{
7755 AARCH64_MAP_INSN,
7756 AARCH64_MAP_DATA
7757};
7758
7759
7760/* Output a single mapping symbol. */
7761
7762static bfd_boolean
cec5225b 7763elfNN_aarch64_output_map_sym (output_arch_syminfo *osi,
a06ea964
NC		 7764 enum map_symbol_type type, bfd_vma offset)
7765{
7766 static const char *names[2] = { "$x", "$d" };
7767 Elf_Internal_Sym sym;
7768
7769 sym.st_value = (osi->sec->output_section->vma
7770 + osi->sec->output_offset + offset);
7771 sym.st_size = 0;
7772 sym.st_other = 0;
7773 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE);
7774 sym.st_shndx = osi->sec_shndx;
7775 return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1;
7776}
7777
a06ea964
NC		 7778/* Output a single local symbol for a generated stub. */
7779
7780static bfd_boolean
cec5225b 7781elfNN_aarch64_output_stub_sym (output_arch_syminfo *osi, const char *name,
a06ea964
NC		 7782 bfd_vma offset, bfd_vma size)
7783{
7784 Elf_Internal_Sym sym;
7785
7786 sym.st_value = (osi->sec->output_section->vma
7787 + osi->sec->output_offset + offset);
7788 sym.st_size = size;
7789 sym.st_other = 0;
7790 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FUNC);
7791 sym.st_shndx = osi->sec_shndx;
7792 return osi->func (osi->finfo, name, &sym, osi->sec, NULL) == 1;
7793}
7794
7795static bfd_boolean
7796aarch64_map_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
7797{
cec5225b 7798 struct elf_aarch64_stub_hash_entry *stub_entry;
a06ea964
NC		 7799 asection *stub_sec;
7800 bfd_vma addr;
7801 char *stub_name;
7802 output_arch_syminfo *osi;
7803
7804 /* Massage our args to the form they really have. */
cec5225b 7805 stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry;
a06ea964
NC		 7806 osi = (output_arch_syminfo *) in_arg;
7807
7808 stub_sec = stub_entry->stub_sec;
7809
7810 /* Ensure this stub is attached to the current section being
7811 processed. */
7812 if (stub_sec != osi->sec)
7813 return TRUE;
7814
7815 addr = (bfd_vma) stub_entry->stub_offset;
7816
7817 stub_name = stub_entry->output_name;
7818
7819 switch (stub_entry->stub_type)
7820 {
7821 case aarch64_stub_adrp_branch:
cec5225b 7822 if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr,
a06ea964
NC		 7823 sizeof (aarch64_adrp_branch_stub)))
7824 return FALSE;
cec5225b 7825 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
a06ea964
NC		 7826 return FALSE;
7827 break;
7828 case aarch64_stub_long_branch:
cec5225b 7829 if (!elfNN_aarch64_output_stub_sym
a06ea964
NC		 7830 (osi, stub_name, addr, sizeof (aarch64_long_branch_stub)))
7831 return FALSE;
cec5225b 7832 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
a06ea964 7833 return FALSE;
cec5225b 7834 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_DATA, addr + 16))
a06ea964
NC		 7835 return FALSE;
7836 break;
68fcca92
JW		 7837 case aarch64_stub_erratum_835769_veneer:
7838 if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr,
7839 sizeof (aarch64_erratum_835769_stub)))
7840 return FALSE;
7841 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
7842 return FALSE;
7843 break;
4106101c
MS		 7844 case aarch64_stub_erratum_843419_veneer:
7845 if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr,
7846 sizeof (aarch64_erratum_843419_stub)))
7847 return FALSE;
7848 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
7849 return FALSE;
7850 break;
7851
a06ea964 7852 default:
8e2fe09f 7853 abort ();
a06ea964
NC		 7854 }
7855
7856 return TRUE;
7857}
7858
7859/* Output mapping symbols for linker generated sections. */
7860
7861static bfd_boolean
cec5225b 7862elfNN_aarch64_output_arch_local_syms (bfd *output_bfd,
a06ea964
NC		 7863 struct bfd_link_info *info,
7864 void *finfo,
7865 int (*func) (void *, const char *,
7866 Elf_Internal_Sym *,
7867 asection *,
7868 struct elf_link_hash_entry
7869 *))
7870{
7871 output_arch_syminfo osi;
cec5225b 7872 struct elf_aarch64_link_hash_table *htab;
a06ea964 7873
cec5225b 7874 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 7875
7876 osi.finfo = finfo;
7877 osi.info = info;
7878 osi.func = func;
7879
7880 /* Long calls stubs. */
7881 if (htab->stub_bfd && htab->stub_bfd->sections)
7882 {
7883 asection *stub_sec;
7884
7885 for (stub_sec = htab->stub_bfd->sections;
7886 stub_sec != NULL; stub_sec = stub_sec->next)
7887 {
7888 /* Ignore non-stub sections. */
7889 if (!strstr (stub_sec->name, STUB_SUFFIX))
7890 continue;
7891
7892 osi.sec = stub_sec;
7893
7894 osi.sec_shndx = _bfd_elf_section_from_bfd_section
7895 (output_bfd, osi.sec->output_section);
7896
61865519
MS		 7897 /* The first instruction in a stub is always a branch. */
7898 if (!elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0))
7899 return FALSE;
7900
a06ea964
NC		 7901 bfd_hash_traverse (&htab->stub_hash_table, aarch64_map_one_stub,
7902 &osi);
7903 }
7904 }
7905
7906 /* Finally, output mapping symbols for the PLT. */
7907 if (!htab->root.splt || htab->root.splt->size == 0)
7908 return TRUE;
7909
a06ea964
NC		 7910 osi.sec_shndx = _bfd_elf_section_from_bfd_section
7911 (output_bfd, htab->root.splt->output_section);
7912 osi.sec = htab->root.splt;
7913
73524045 7914 elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0);
a06ea964
NC		 7915
7916 return TRUE;
7917
7918}
7919
7920/* Allocate target specific section data. */
7921
7922static bfd_boolean
cec5225b 7923elfNN_aarch64_new_section_hook (bfd *abfd, asection *sec)
a06ea964
NC		 7924{
7925 if (!sec->used_by_bfd)
7926 {
7927 _aarch64_elf_section_data *sdata;
7928 bfd_size_type amt = sizeof (*sdata);
7929
7930 sdata = bfd_zalloc (abfd, amt);
7931 if (sdata == NULL)
7932 return FALSE;
7933 sec->used_by_bfd = sdata;
7934 }
7935
7936 record_section_with_aarch64_elf_section_data (sec);
7937
7938 return _bfd_elf_new_section_hook (abfd, sec);
7939}
7940
7941
7942static void
7943unrecord_section_via_map_over_sections (bfd *abfd ATTRIBUTE_UNUSED,
7944 asection *sec,
7945 void *ignore ATTRIBUTE_UNUSED)
7946{
7947 unrecord_section_with_aarch64_elf_section_data (sec);
7948}
7949
7950static bfd_boolean
cec5225b 7951elfNN_aarch64_close_and_cleanup (bfd *abfd)
a06ea964
NC		 7952{
7953 if (abfd->sections)
7954 bfd_map_over_sections (abfd,
7955 unrecord_section_via_map_over_sections, NULL);
7956
7957 return _bfd_elf_close_and_cleanup (abfd);
7958}
7959
7960static bfd_boolean
cec5225b 7961elfNN_aarch64_bfd_free_cached_info (bfd *abfd)
a06ea964
NC		 7962{
7963 if (abfd->sections)
7964 bfd_map_over_sections (abfd,
7965 unrecord_section_via_map_over_sections, NULL);
7966
7967 return _bfd_free_cached_info (abfd);
7968}
7969
a06ea964
NC		 7970/* Create dynamic sections. This is different from the ARM backend in that
7971 the got, plt, gotplt and their relocation sections are all created in the
7972 standard part of the bfd elf backend. */
7973
7974static bfd_boolean
cec5225b 7975elfNN_aarch64_create_dynamic_sections (bfd *dynobj,
a06ea964
NC		 7976 struct bfd_link_info *info)
7977{
cc0efaa8
MS		 7978 /* We need to create .got section. */
7979 if (!aarch64_elf_create_got_section (dynobj, info))
7980 return FALSE;
a06ea964 7981
9d19e4fd 7982 return _bfd_elf_create_dynamic_sections (dynobj, info);
a06ea964
NC		 7983}
7984
7985
7986/* Allocate space in .plt, .got and associated reloc sections for
7987 dynamic relocs. */
7988
7989static bfd_boolean
cec5225b 7990elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
a06ea964
NC		 7991{
7992 struct bfd_link_info *info;
cec5225b
YZ		 7993 struct elf_aarch64_link_hash_table *htab;
7994 struct elf_aarch64_link_hash_entry *eh;
a06ea964
NC		 7995 struct elf_dyn_relocs *p;
7996
7997 /* An example of a bfd_link_hash_indirect symbol is versioned
7998 symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect)
7999 -> __gxx_personality_v0(bfd_link_hash_defined)
8000
8001 There is no need to process bfd_link_hash_indirect symbols here
8002 because we will also be presented with the concrete instance of
cec5225b 8003 the symbol and elfNN_aarch64_copy_indirect_symbol () will have been
a06ea964 8004 called to copy all relevant data from the generic to the concrete
2d0ca824 8005 symbol instance. */
a06ea964
NC		 8006 if (h->root.type == bfd_link_hash_indirect)
8007 return TRUE;
8008
8009 if (h->root.type == bfd_link_hash_warning)
8010 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8011
8012 info = (struct bfd_link_info *) inf;
cec5225b 8013 htab = elf_aarch64_hash_table (info);
a06ea964 8014
1419bbe5
WN		 8015 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
8016 here if it is defined and referenced in a non-shared object. */
8017 if (h->type == STT_GNU_IFUNC
8018 && h->def_regular)
8019 return TRUE;
8020 else if (htab->root.dynamic_sections_created && h->plt.refcount > 0)
a06ea964
NC		 8021 {
8022 /* Make sure this symbol is output as a dynamic symbol.
8023 Undefined weak syms won't yet be marked as dynamic. */
8024 if (h->dynindx == -1 && !h->forced_local)
8025 {
8026 if (!bfd_elf_link_record_dynamic_symbol (info, h))
8027 return FALSE;
8028 }
8029
0e1862bb 8030 if (bfd_link_pic (info) || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
a06ea964
NC		 8031 {
8032 asection *s = htab->root.splt;
8033
8034 /* If this is the first .plt entry, make room for the special
8035 first entry. */
8036 if (s->size == 0)
8037 s->size += htab->plt_header_size;
8038
8039 h->plt.offset = s->size;
8040
8041 /* If this symbol is not defined in a regular file, and we are
8042 not generating a shared library, then set the symbol to this
8043 location in the .plt. This is required to make function
8044 pointers compare as equal between the normal executable and
8045 the shared library. */
0e1862bb 8046 if (!bfd_link_pic (info) && !h->def_regular)
a06ea964
NC		 8047 {
8048 h->root.u.def.section = s;
8049 h->root.u.def.value = h->plt.offset;
8050 }
8051
8052 /* Make room for this entry. For now we only create the
8053 small model PLT entries. We later need to find a way
8054 of relaxing into these from the large model PLT entries. */
8055 s->size += PLT_SMALL_ENTRY_SIZE;
8056
8057 /* We also need to make an entry in the .got.plt section, which
8058 will be placed in the .got section by the linker script. */
8059 htab->root.sgotplt->size += GOT_ENTRY_SIZE;
8060
8061 /* We also need to make an entry in the .rela.plt section. */
8062 htab->root.srelplt->size += RELOC_SIZE (htab);
8063
8064 /* We need to ensure that all GOT entries that serve the PLT
8065 are consecutive with the special GOT slots [0] [1] and
8066 [2]. Any addtional relocations, such as
8067 R_AARCH64_TLSDESC, must be placed after the PLT related
8068 entries. We abuse the reloc_count such that during
8069 sizing we adjust reloc_count to indicate the number of
8070 PLT related reserved entries. In subsequent phases when
8071 filling in the contents of the reloc entries, PLT related
8072 entries are placed by computing their PLT index (0
8073 .. reloc_count). While other none PLT relocs are placed
8074 at the slot indicated by reloc_count and reloc_count is
8075 updated. */
8076
8077 htab->root.srelplt->reloc_count++;
8078 }
8079 else
8080 {
8081 h->plt.offset = (bfd_vma) - 1;
8082 h->needs_plt = 0;
8083 }
8084 }
8085 else
8086 {
8087 h->plt.offset = (bfd_vma) - 1;
8088 h->needs_plt = 0;
8089 }
8090
cec5225b 8091 eh = (struct elf_aarch64_link_hash_entry *) h;
a06ea964
NC		 8092 eh->tlsdesc_got_jump_table_offset = (bfd_vma) - 1;
8093
8094 if (h->got.refcount > 0)
8095 {
8096 bfd_boolean dyn;
cec5225b 8097 unsigned got_type = elf_aarch64_hash_entry (h)->got_type;
a06ea964
NC		 8098
8099 h->got.offset = (bfd_vma) - 1;
8100
8101 dyn = htab->root.dynamic_sections_created;
8102
8103 /* Make sure this symbol is output as a dynamic symbol.
8104 Undefined weak syms won't yet be marked as dynamic. */
8105 if (dyn && h->dynindx == -1 && !h->forced_local)
8106 {
8107 if (!bfd_elf_link_record_dynamic_symbol (info, h))
8108 return FALSE;
8109 }
8110
8111 if (got_type == GOT_UNKNOWN)
8112 {
8113 }
8114 else if (got_type == GOT_NORMAL)
8115 {
8116 h->got.offset = htab->root.sgot->size;
8117 htab->root.sgot->size += GOT_ENTRY_SIZE;
8118 if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8119 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 8120 && (bfd_link_pic (info)
a06ea964
NC		 8121 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
8122 {
8123 htab->root.srelgot->size += RELOC_SIZE (htab);
8124 }
8125 }
8126 else
8127 {
8128 int indx;
8129 if (got_type & GOT_TLSDESC_GD)
8130 {
8131 eh->tlsdesc_got_jump_table_offset =
8132 (htab->root.sgotplt->size
8133 - aarch64_compute_jump_table_size (htab));
8134 htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2;
8135 h->got.offset = (bfd_vma) - 2;
8136 }
8137
8138 if (got_type & GOT_TLS_GD)
8139 {
8140 h->got.offset = htab->root.sgot->size;
8141 htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
8142 }
8143
8144 if (got_type & GOT_TLS_IE)
8145 {
8146 h->got.offset = htab->root.sgot->size;
8147 htab->root.sgot->size += GOT_ENTRY_SIZE;
8148 }
8149
8150 indx = h && h->dynindx != -1 ? h->dynindx : 0;
8151 if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8152 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 8153 && (bfd_link_pic (info)
a06ea964
NC		 8154 || indx != 0
8155 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
8156 {
8157 if (got_type & GOT_TLSDESC_GD)
8158 {
8159 htab->root.srelplt->size += RELOC_SIZE (htab);
8160 /* Note reloc_count not incremented here! We have
8161 already adjusted reloc_count for this relocation
8162 type. */
8163
8164 /* TLSDESC PLT is now needed, but not yet determined. */
8165 htab->tlsdesc_plt = (bfd_vma) - 1;
8166 }
8167
8168 if (got_type & GOT_TLS_GD)
8169 htab->root.srelgot->size += RELOC_SIZE (htab) * 2;
8170
8171 if (got_type & GOT_TLS_IE)
8172 htab->root.srelgot->size += RELOC_SIZE (htab);
8173 }
8174 }
8175 }
8176 else
8177 {
8178 h->got.offset = (bfd_vma) - 1;
8179 }
8180
8181 if (eh->dyn_relocs == NULL)
8182 return TRUE;
8183
8184 /* In the shared -Bsymbolic case, discard space allocated for
8185 dynamic pc-relative relocs against symbols which turn out to be
8186 defined in regular objects. For the normal shared case, discard
8187 space for pc-relative relocs that have become local due to symbol
8188 visibility changes. */
8189
0e1862bb 8190 if (bfd_link_pic (info))
a06ea964
NC		 8191 {
8192 /* Relocs that use pc_count are those that appear on a call
8193 insn, or certain REL relocs that can generated via assembly.
8194 We want calls to protected symbols to resolve directly to the
8195 function rather than going via the plt. If people want
8196 function pointer comparisons to work as expected then they
8197 should avoid writing weird assembly. */
8198 if (SYMBOL_CALLS_LOCAL (info, h))
8199 {
8200 struct elf_dyn_relocs **pp;
8201
8202 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
8203 {
8204 p->count -= p->pc_count;
8205 p->pc_count = 0;
8206 if (p->count == 0)
8207 *pp = p->next;
8208 else
8209 pp = &p->next;
8210 }
8211 }
8212
8213 /* Also discard relocs on undefined weak syms with non-default
8214 visibility. */
8215 if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak)
8216 {
8217 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
8218 eh->dyn_relocs = NULL;
8219
8220 /* Make sure undefined weak symbols are output as a dynamic
8221 symbol in PIEs. */
8222 else if (h->dynindx == -1
8223 && !h->forced_local
8224 && !bfd_elf_link_record_dynamic_symbol (info, h))
8225 return FALSE;
8226 }
8227
8228 }
8229 else if (ELIMINATE_COPY_RELOCS)
8230 {
8231 /* For the non-shared case, discard space for relocs against
8232 symbols which turn out to need copy relocs or are not
8233 dynamic. */
8234
8235 if (!h->non_got_ref
8236 && ((h->def_dynamic
8237 && !h->def_regular)
8238 || (htab->root.dynamic_sections_created
8239 && (h->root.type == bfd_link_hash_undefweak
8240 || h->root.type == bfd_link_hash_undefined))))
8241 {
8242 /* Make sure this symbol is output as a dynamic symbol.
8243 Undefined weak syms won't yet be marked as dynamic. */
8244 if (h->dynindx == -1
8245 && !h->forced_local
8246 && !bfd_elf_link_record_dynamic_symbol (info, h))
8247 return FALSE;
8248
8249 /* If that succeeded, we know we'll be keeping all the
8250 relocs. */
8251 if (h->dynindx != -1)
8252 goto keep;
8253 }
8254
8255 eh->dyn_relocs = NULL;
8256
8257 keep:;
8258 }
8259
8260 /* Finally, allocate space. */
8261 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8262 {
8263 asection *sreloc;
8264
8265 sreloc = elf_section_data (p->sec)->sreloc;
8266
8267 BFD_ASSERT (sreloc != NULL);
8268
8269 sreloc->size += p->count * RELOC_SIZE (htab);
8270 }
8271
8272 return TRUE;
8273}
8274
1419bbe5
WN		 8275/* Allocate space in .plt, .got and associated reloc sections for
8276 ifunc dynamic relocs. */
8277
8278static bfd_boolean
8279elfNN_aarch64_allocate_ifunc_dynrelocs (struct elf_link_hash_entry *h,
8280 void *inf)
8281{
8282 struct bfd_link_info *info;
8283 struct elf_aarch64_link_hash_table *htab;
8284 struct elf_aarch64_link_hash_entry *eh;
8285
8286 /* An example of a bfd_link_hash_indirect symbol is versioned
8287 symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect)
8288 -> __gxx_personality_v0(bfd_link_hash_defined)
8289
8290 There is no need to process bfd_link_hash_indirect symbols here
8291 because we will also be presented with the concrete instance of
8292 the symbol and elfNN_aarch64_copy_indirect_symbol () will have been
8293 called to copy all relevant data from the generic to the concrete
2d0ca824 8294 symbol instance. */
1419bbe5
WN		 8295 if (h->root.type == bfd_link_hash_indirect)
8296 return TRUE;
8297
8298 if (h->root.type == bfd_link_hash_warning)
8299 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8300
8301 info = (struct bfd_link_info *) inf;
8302 htab = elf_aarch64_hash_table (info);
8303
8304 eh = (struct elf_aarch64_link_hash_entry *) h;
8305
8306 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
8307 here if it is defined and referenced in a non-shared object. */
8308 if (h->type == STT_GNU_IFUNC
8309 && h->def_regular)
8310 return _bfd_elf_allocate_ifunc_dyn_relocs (info, h,
8311 &eh->dyn_relocs,
2df3368d 8312 NULL,
1419bbe5
WN		 8313 htab->plt_entry_size,
8314 htab->plt_header_size,
233cc9c1
L		 8315 GOT_ENTRY_SIZE,
8316 FALSE);
1419bbe5
WN		 8317 return TRUE;
8318}
8319
8320/* Allocate space in .plt, .got and associated reloc sections for
8321 local dynamic relocs. */
8322
8323static bfd_boolean
8324elfNN_aarch64_allocate_local_dynrelocs (void **slot, void *inf)
8325{
8326 struct elf_link_hash_entry *h
8327 = (struct elf_link_hash_entry *) *slot;
8328
8329 if (h->type != STT_GNU_IFUNC
8330 || !h->def_regular
8331 || !h->ref_regular
8332 || !h->forced_local
8333 || h->root.type != bfd_link_hash_defined)
8334 abort ();
8335
8336 return elfNN_aarch64_allocate_dynrelocs (h, inf);
8337}
8338
8339/* Allocate space in .plt, .got and associated reloc sections for
8340 local ifunc dynamic relocs. */
8341
8342static bfd_boolean
8343elfNN_aarch64_allocate_local_ifunc_dynrelocs (void **slot, void *inf)
8344{
8345 struct elf_link_hash_entry *h
8346 = (struct elf_link_hash_entry *) *slot;
8347
8348 if (h->type != STT_GNU_IFUNC
8349 || !h->def_regular
8350 || !h->ref_regular
8351 || !h->forced_local
8352 || h->root.type != bfd_link_hash_defined)
8353 abort ();
8354
8355 return elfNN_aarch64_allocate_ifunc_dynrelocs (h, inf);
8356}
a06ea964 8357
c2170589
JW		 8358/* Find any dynamic relocs that apply to read-only sections. */
8359
8360static bfd_boolean
8361aarch64_readonly_dynrelocs (struct elf_link_hash_entry * h, void * inf)
8362{
8363 struct elf_aarch64_link_hash_entry * eh;
8364 struct elf_dyn_relocs * p;
8365
8366 eh = (struct elf_aarch64_link_hash_entry *) h;
8367 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8368 {
8369 asection *s = p->sec;
8370
8371 if (s != NULL && (s->flags & SEC_READONLY) != 0)
8372 {
8373 struct bfd_link_info *info = (struct bfd_link_info *) inf;
8374
8375 info->flags |= DF_TEXTREL;
8376
8377 /* Not an error, just cut short the traversal. */
8378 return FALSE;
8379 }
8380 }
8381 return TRUE;
8382}
8383
a06ea964
NC		 8384/* This is the most important function of all . Innocuosly named
8385 though ! */
2d0ca824 8386
a06ea964 8387static bfd_boolean
cec5225b 8388elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
a06ea964
NC		 8389 struct bfd_link_info *info)
8390{
cec5225b 8391 struct elf_aarch64_link_hash_table *htab;
a06ea964
NC		 8392 bfd *dynobj;
8393 asection *s;
8394 bfd_boolean relocs;
8395 bfd *ibfd;
8396
cec5225b 8397 htab = elf_aarch64_hash_table ((info));
a06ea964
NC		 8398 dynobj = htab->root.dynobj;
8399
8400 BFD_ASSERT (dynobj != NULL);
8401
8402 if (htab->root.dynamic_sections_created)
8403 {
9b8b325a 8404 if (bfd_link_executable (info) && !info->nointerp)
a06ea964
NC		 8405 {
8406 s = bfd_get_linker_section (dynobj, ".interp");
8407 if (s == NULL)
8408 abort ();
8409 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
8410 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
8411 }
8412 }
8413
8414 /* Set up .got offsets for local syms, and space for local dynamic
8415 relocs. */
c72f2fb2 8416 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
a06ea964
NC		 8417 {
8418 struct elf_aarch64_local_symbol *locals = NULL;
8419 Elf_Internal_Shdr *symtab_hdr;
8420 asection *srel;
8421 unsigned int i;
8422
8423 if (!is_aarch64_elf (ibfd))
8424 continue;
8425
8426 for (s = ibfd->sections; s != NULL; s = s->next)
8427 {
8428 struct elf_dyn_relocs *p;
8429
8430 for (p = (struct elf_dyn_relocs *)
8431 (elf_section_data (s)->local_dynrel); p != NULL; p = p->next)
8432 {
8433 if (!bfd_is_abs_section (p->sec)
8434 && bfd_is_abs_section (p->sec->output_section))
8435 {
8436 /* Input section has been discarded, either because
8437 it is a copy of a linkonce section or due to
8438 linker script /DISCARD/, so we'll be discarding
8439 the relocs too. */
8440 }
8441 else if (p->count != 0)
8442 {
8443 srel = elf_section_data (p->sec)->sreloc;
8444 srel->size += p->count * RELOC_SIZE (htab);
8445 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
8446 info->flags |= DF_TEXTREL;
8447 }
8448 }
8449 }
8450
cec5225b 8451 locals = elf_aarch64_locals (ibfd);
a06ea964
NC		 8452 if (!locals)
8453 continue;
8454
8455 symtab_hdr = &elf_symtab_hdr (ibfd);
8456 srel = htab->root.srelgot;
8457 for (i = 0; i < symtab_hdr->sh_info; i++)
8458 {
8459 locals[i].got_offset = (bfd_vma) - 1;
8460 locals[i].tlsdesc_got_jump_table_offset = (bfd_vma) - 1;
8461 if (locals[i].got_refcount > 0)
8462 {
8463 unsigned got_type = locals[i].got_type;
8464 if (got_type & GOT_TLSDESC_GD)
8465 {
8466 locals[i].tlsdesc_got_jump_table_offset =
8467 (htab->root.sgotplt->size
8468 - aarch64_compute_jump_table_size (htab));
8469 htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2;
8470 locals[i].got_offset = (bfd_vma) - 2;
8471 }
8472
8473 if (got_type & GOT_TLS_GD)
8474 {
8475 locals[i].got_offset = htab->root.sgot->size;
8476 htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
8477 }
8478
b53b1bed
JW		 8479 if (got_type & GOT_TLS_IE
8480 || got_type & GOT_NORMAL)
a06ea964
NC		 8481 {
8482 locals[i].got_offset = htab->root.sgot->size;
8483 htab->root.sgot->size += GOT_ENTRY_SIZE;
8484 }
8485
8486 if (got_type == GOT_UNKNOWN)
8487 {
8488 }
8489
0e1862bb 8490 if (bfd_link_pic (info))
a06ea964
NC		 8491 {
8492 if (got_type & GOT_TLSDESC_GD)
8493 {
8494 htab->root.srelplt->size += RELOC_SIZE (htab);
8495 /* Note RELOC_COUNT not incremented here! */
8496 htab->tlsdesc_plt = (bfd_vma) - 1;
8497 }
8498
8499 if (got_type & GOT_TLS_GD)
8500 htab->root.srelgot->size += RELOC_SIZE (htab) * 2;
8501
b53b1bed
JW		 8502 if (got_type & GOT_TLS_IE
8503 || got_type & GOT_NORMAL)
a06ea964
NC		 8504 htab->root.srelgot->size += RELOC_SIZE (htab);
8505 }
8506 }
8507 else
8508 {
8509 locals[i].got_refcount = (bfd_vma) - 1;
8510 }
8511 }
8512 }
8513
8514
8515 /* Allocate global sym .plt and .got entries, and space for global
8516 sym dynamic relocs. */
cec5225b 8517 elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_dynrelocs,
a06ea964
NC		 8518 info);
8519
1419bbe5
WN		 8520 /* Allocate global ifunc sym .plt and .got entries, and space for global
8521 ifunc sym dynamic relocs. */
8522 elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_ifunc_dynrelocs,
8523 info);
8524
8525 /* Allocate .plt and .got entries, and space for local symbols. */
8526 htab_traverse (htab->loc_hash_table,
8527 elfNN_aarch64_allocate_local_dynrelocs,
8528 info);
8529
8530 /* Allocate .plt and .got entries, and space for local ifunc symbols. */
8531 htab_traverse (htab->loc_hash_table,
8532 elfNN_aarch64_allocate_local_ifunc_dynrelocs,
8533 info);
a06ea964
NC		 8534
8535 /* For every jump slot reserved in the sgotplt, reloc_count is
8536 incremented. However, when we reserve space for TLS descriptors,
8537 it's not incremented, so in order to compute the space reserved
8538 for them, it suffices to multiply the reloc count by the jump
8539 slot size. */
8540
8541 if (htab->root.srelplt)
8847944f 8542 htab->sgotplt_jump_table_size = aarch64_compute_jump_table_size (htab);
a06ea964
NC		 8543
8544 if (htab->tlsdesc_plt)
8545 {
8546 if (htab->root.splt->size == 0)
8547 htab->root.splt->size += PLT_ENTRY_SIZE;
8548
8549 htab->tlsdesc_plt = htab->root.splt->size;
8550 htab->root.splt->size += PLT_TLSDESC_ENTRY_SIZE;
8551
8552 /* If we're not using lazy TLS relocations, don't generate the
8553 GOT entry required. */
8554 if (!(info->flags & DF_BIND_NOW))
8555 {
8556 htab->dt_tlsdesc_got = htab->root.sgot->size;
8557 htab->root.sgot->size += GOT_ENTRY_SIZE;
8558 }
8559 }
8560
68fcca92 8561 /* Init mapping symbols information to use later to distingush between
4106101c
MS		 8562 code and data while scanning for errata. */
8563 if (htab->fix_erratum_835769 || htab->fix_erratum_843419)
68fcca92
JW		 8564 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
8565 {
8566 if (!is_aarch64_elf (ibfd))
8567 continue;
8568 bfd_elfNN_aarch64_init_maps (ibfd);
8569 }
8570
a06ea964
NC		 8571 /* We now have determined the sizes of the various dynamic sections.
8572 Allocate memory for them. */
8573 relocs = FALSE;
8574 for (s = dynobj->sections; s != NULL; s = s->next)
8575 {
8576 if ((s->flags & SEC_LINKER_CREATED) == 0)
8577 continue;
8578
8579 if (s == htab->root.splt
8580 || s == htab->root.sgot
8581 || s == htab->root.sgotplt
8582 || s == htab->root.iplt
9d19e4fd 8583 || s == htab->root.igotplt
5474d94f
AM		 8584 || s == htab->root.sdynbss
8585 || s == htab->root.sdynrelro)
a06ea964
NC		 8586 {
8587 /* Strip this section if we don't need it; see the
8588 comment below. */
8589 }
8590 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
8591 {
8592 if (s->size != 0 && s != htab->root.srelplt)
8593 relocs = TRUE;
8594
8595 /* We use the reloc_count field as a counter if we need
8596 to copy relocs into the output file. */
8597 if (s != htab->root.srelplt)
8598 s->reloc_count = 0;
8599 }
8600 else
8601 {
8602 /* It's not one of our sections, so don't allocate space. */
8603 continue;
8604 }
8605
8606 if (s->size == 0)
8607 {
8608 /* If we don't need this section, strip it from the
8609 output file. This is mostly to handle .rela.bss and
8610 .rela.plt. We must create both sections in
8611 create_dynamic_sections, because they must be created
8612 before the linker maps input sections to output
8613 sections. The linker does that before
8614 adjust_dynamic_symbol is called, and it is that
8615 function which decides whether anything needs to go
8616 into these sections. */
a06ea964
NC		 8617 s->flags |= SEC_EXCLUDE;
8618 continue;
8619 }
8620
8621 if ((s->flags & SEC_HAS_CONTENTS) == 0)
8622 continue;
8623
8624 /* Allocate memory for the section contents. We use bfd_zalloc
8625 here in case unused entries are not reclaimed before the
8626 section's contents are written out. This should not happen,
8627 but this way if it does, we get a R_AARCH64_NONE reloc instead
8628 of garbage. */
8629 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
8630 if (s->contents == NULL)
8631 return FALSE;
8632 }
8633
8634 if (htab->root.dynamic_sections_created)
8635 {
8636 /* Add some entries to the .dynamic section. We fill in the
cec5225b 8637 values later, in elfNN_aarch64_finish_dynamic_sections, but we
a06ea964
NC		 8638 must add the entries now so that we get the correct size for
8639 the .dynamic section. The DT_DEBUG entry is filled in by the
8640 dynamic linker and used by the debugger. */
8641#define add_dynamic_entry(TAG, VAL) \
8642 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
8643
0e1862bb 8644 if (bfd_link_executable (info))
a06ea964
NC		 8645 {
8646 if (!add_dynamic_entry (DT_DEBUG, 0))
8647 return FALSE;
8648 }
8649
8650 if (htab->root.splt->size != 0)
8651 {
8652 if (!add_dynamic_entry (DT_PLTGOT, 0)
8653 || !add_dynamic_entry (DT_PLTRELSZ, 0)
8654 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
8655 || !add_dynamic_entry (DT_JMPREL, 0))
8656 return FALSE;
8657
8658 if (htab->tlsdesc_plt
8659 && (!add_dynamic_entry (DT_TLSDESC_PLT, 0)
8660 || !add_dynamic_entry (DT_TLSDESC_GOT, 0)))
8661 return FALSE;
8662 }
8663
8664 if (relocs)
8665 {
8666 if (!add_dynamic_entry (DT_RELA, 0)
8667 || !add_dynamic_entry (DT_RELASZ, 0)
8668 || !add_dynamic_entry (DT_RELAENT, RELOC_SIZE (htab)))
8669 return FALSE;
8670
8671 /* If any dynamic relocs apply to a read-only section,
8672 then we need a DT_TEXTREL entry. */
c2170589
JW		 8673 if ((info->flags & DF_TEXTREL) == 0)
8674 elf_link_hash_traverse (& htab->root, aarch64_readonly_dynrelocs,
8675 info);
8676
a06ea964
NC		 8677 if ((info->flags & DF_TEXTREL) != 0)
8678 {
8679 if (!add_dynamic_entry (DT_TEXTREL, 0))
8680 return FALSE;
8681 }
8682 }
8683 }
8684#undef add_dynamic_entry
8685
8686 return TRUE;
a06ea964
NC		 8687}
8688
8689static inline void
caed7120
YZ		 8690elf_aarch64_update_plt_entry (bfd *output_bfd,
8691 bfd_reloc_code_real_type r_type,
8692 bfd_byte *plt_entry, bfd_vma value)
a06ea964 8693{
caed7120
YZ		 8694 reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (r_type);
8695
8696 _bfd_aarch64_elf_put_addend (output_bfd, plt_entry, r_type, howto, value);
a06ea964
NC		 8697}
8698
8699static void
cec5225b
YZ		 8700elfNN_aarch64_create_small_pltn_entry (struct elf_link_hash_entry *h,
8701 struct elf_aarch64_link_hash_table
1419bbe5
WN		 8702 *htab, bfd *output_bfd,
8703 struct bfd_link_info *info)
a06ea964
NC		 8704{
8705 bfd_byte *plt_entry;
8706 bfd_vma plt_index;
8707 bfd_vma got_offset;
8708 bfd_vma gotplt_entry_address;
8709 bfd_vma plt_entry_address;
8710 Elf_Internal_Rela rela;
8711 bfd_byte *loc;
1419bbe5
WN		 8712 asection *plt, *gotplt, *relplt;
8713
8714 /* When building a static executable, use .iplt, .igot.plt and
8715 .rela.iplt sections for STT_GNU_IFUNC symbols. */
8716 if (htab->root.splt != NULL)
8717 {
8718 plt = htab->root.splt;
8719 gotplt = htab->root.sgotplt;
8720 relplt = htab->root.srelplt;
8721 }
8722 else
8723 {
8724 plt = htab->root.iplt;
8725 gotplt = htab->root.igotplt;
8726 relplt = htab->root.irelplt;
8727 }
8728
8729 /* Get the index in the procedure linkage table which
8730 corresponds to this symbol. This is the index of this symbol
8731 in all the symbols for which we are making plt entries. The
8732 first entry in the procedure linkage table is reserved.
a06ea964 8733
1419bbe5
WN		 8734 Get the offset into the .got table of the entry that
8735 corresponds to this function. Each .got entry is GOT_ENTRY_SIZE
8736 bytes. The first three are reserved for the dynamic linker.
692e2b8b 8737
1419bbe5
WN		 8738 For static executables, we don't reserve anything. */
8739
8740 if (plt == htab->root.splt)
8741 {
8742 plt_index = (h->plt.offset - htab->plt_header_size) / htab->plt_entry_size;
8743 got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
8744 }
8745 else
8746 {
8747 plt_index = h->plt.offset / htab->plt_entry_size;
8748 got_offset = plt_index * GOT_ENTRY_SIZE;
8749 }
8750
8751 plt_entry = plt->contents + h->plt.offset;
8752 plt_entry_address = plt->output_section->vma
f44a1f8e 8753 + plt->output_offset + h->plt.offset;
1419bbe5
WN		 8754 gotplt_entry_address = gotplt->output_section->vma +
8755 gotplt->output_offset + got_offset;
a06ea964
NC		 8756
8757 /* Copy in the boiler-plate for the PLTn entry. */
cec5225b 8758 memcpy (plt_entry, elfNN_aarch64_small_plt_entry, PLT_SMALL_ENTRY_SIZE);
a06ea964
NC		 8759
8760 /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8.
8761 ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */
caed7120
YZ		 8762 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL,
8763 plt_entry,
8764 PG (gotplt_entry_address) -
8765 PG (plt_entry_address));
a06ea964
NC		 8766
8767 /* Fill in the lo12 bits for the load from the pltgot. */
caed7120
YZ		 8768 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12,
8769 plt_entry + 4,
8770 PG_OFFSET (gotplt_entry_address));
a06ea964 8771
9aff4b7a 8772 /* Fill in the lo12 bits for the add from the pltgot entry. */
caed7120
YZ		 8773 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12,
8774 plt_entry + 8,
8775 PG_OFFSET (gotplt_entry_address));
a06ea964
NC		 8776
8777 /* All the GOTPLT Entries are essentially initialized to PLT0. */
cec5225b 8778 bfd_put_NN (output_bfd,
1419bbe5
WN		 8779 plt->output_section->vma + plt->output_offset,
8780 gotplt->contents + got_offset);
a06ea964 8781
a06ea964 8782 rela.r_offset = gotplt_entry_address;
1419bbe5
WN		 8783
8784 if (h->dynindx == -1
0e1862bb 8785 || ((bfd_link_executable (info)
1419bbe5
WN		 8786 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
8787 && h->def_regular
8788 && h->type == STT_GNU_IFUNC))
8789 {
8790 /* If an STT_GNU_IFUNC symbol is locally defined, generate
8791 R_AARCH64_IRELATIVE instead of R_AARCH64_JUMP_SLOT. */
8792 rela.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE));
8793 rela.r_addend = (h->root.u.def.value
8794 + h->root.u.def.section->output_section->vma
8795 + h->root.u.def.section->output_offset);
8796 }
8797 else
8798 {
8799 /* Fill in the entry in the .rela.plt section. */
8800 rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (JUMP_SLOT));
8801 rela.r_addend = 0;
8802 }
a06ea964
NC		 8803
8804 /* Compute the relocation entry to used based on PLT index and do
8805 not adjust reloc_count. The reloc_count has already been adjusted
8806 to account for this entry. */
1419bbe5 8807 loc = relplt->contents + plt_index * RELOC_SIZE (htab);
cec5225b 8808 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964
NC		 8809}
8810
8811/* Size sections even though they're not dynamic. We use it to setup
8812 _TLS_MODULE_BASE_, if needed. */
8813
8814static bfd_boolean
cec5225b 8815elfNN_aarch64_always_size_sections (bfd *output_bfd,
a06ea964
NC		 8816 struct bfd_link_info *info)
8817{
8818 asection *tls_sec;
8819
0e1862bb 8820 if (bfd_link_relocatable (info))
a06ea964
NC		 8821 return TRUE;
8822
8823 tls_sec = elf_hash_table (info)->tls_sec;
8824
8825 if (tls_sec)
8826 {
8827 struct elf_link_hash_entry *tlsbase;
8828
8829 tlsbase = elf_link_hash_lookup (elf_hash_table (info),
8830 "_TLS_MODULE_BASE_", TRUE, TRUE, FALSE);
8831
8832 if (tlsbase)
8833 {
8834 struct bfd_link_hash_entry *h = NULL;
8835 const struct elf_backend_data *bed =
8836 get_elf_backend_data (output_bfd);
8837
8838 if (!(_bfd_generic_link_add_one_symbol
8839 (info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL,
8840 tls_sec, 0, NULL, FALSE, bed->collect, &h)))
8841 return FALSE;
8842
8843 tlsbase->type = STT_TLS;
8844 tlsbase = (struct elf_link_hash_entry *) h;
8845 tlsbase->def_regular = 1;
8846 tlsbase->other = STV_HIDDEN;
8847 (*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE);
8848 }
8849 }
8850
8851 return TRUE;
8852}
8853
8854/* Finish up dynamic symbol handling. We set the contents of various
8855 dynamic sections here. */
2d0ca824 8856
a06ea964 8857static bfd_boolean
cec5225b 8858elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd,
a06ea964
NC		 8859 struct bfd_link_info *info,
8860 struct elf_link_hash_entry *h,
8861 Elf_Internal_Sym *sym)
8862{
cec5225b
YZ		 8863 struct elf_aarch64_link_hash_table *htab;
8864 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 8865
8866 if (h->plt.offset != (bfd_vma) - 1)
8867 {
1419bbe5
WN		 8868 asection *plt, *gotplt, *relplt;
8869
a06ea964
NC		 8870 /* This symbol has an entry in the procedure linkage table. Set
8871 it up. */
8872
1419bbe5
WN		 8873 /* When building a static executable, use .iplt, .igot.plt and
8874 .rela.iplt sections for STT_GNU_IFUNC symbols. */
8875 if (htab->root.splt != NULL)
8876 {
8877 plt = htab->root.splt;
8878 gotplt = htab->root.sgotplt;
8879 relplt = htab->root.srelplt;
8880 }
8881 else
8882 {
8883 plt = htab->root.iplt;
8884 gotplt = htab->root.igotplt;
8885 relplt = htab->root.irelplt;
8886 }
8887
8888 /* This symbol has an entry in the procedure linkage table. Set
8889 it up. */
8890 if ((h->dynindx == -1
0e1862bb 8891 && !((h->forced_local || bfd_link_executable (info))
1419bbe5
WN		 8892 && h->def_regular
8893 && h->type == STT_GNU_IFUNC))
8894 || plt == NULL
8895 || gotplt == NULL
8896 || relplt == NULL)
f955cccf 8897 return FALSE;
a06ea964 8898
1419bbe5 8899 elfNN_aarch64_create_small_pltn_entry (h, htab, output_bfd, info);
a06ea964
NC		 8900 if (!h->def_regular)
8901 {
8902 /* Mark the symbol as undefined, rather than as defined in
46b87d49 8903 the .plt section. */
a06ea964 8904 sym->st_shndx = SHN_UNDEF;
46b87d49
WN		 8905 /* If the symbol is weak we need to clear the value.
8906 Otherwise, the PLT entry would provide a definition for
8907 the symbol even if the symbol wasn't defined anywhere,
8908 and so the symbol would never be NULL. Leave the value if
8909 there were any relocations where pointer equality matters
8910 (this is a clue for the dynamic linker, to make function
8911 pointer comparisons work between an application and shared
8912 library). */
8913 if (!h->ref_regular_nonweak || !h->pointer_equality_needed)
8914 sym->st_value = 0;
a06ea964
NC		 8915 }
8916 }
8917
8918 if (h->got.offset != (bfd_vma) - 1
cec5225b 8919 && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL)
a06ea964
NC		 8920 {
8921 Elf_Internal_Rela rela;
8922 bfd_byte *loc;
8923
8924 /* This symbol has an entry in the global offset table. Set it
8925 up. */
8926 if (htab->root.sgot == NULL || htab->root.srelgot == NULL)
8927 abort ();
8928
8929 rela.r_offset = (htab->root.sgot->output_section->vma
8930 + htab->root.sgot->output_offset
8931 + (h->got.offset & ~(bfd_vma) 1));
8932
49206388
WN		 8933 if (h->def_regular
8934 && h->type == STT_GNU_IFUNC)
8935 {
0e1862bb 8936 if (bfd_link_pic (info))
49206388
WN		 8937 {
8938 /* Generate R_AARCH64_GLOB_DAT. */
8939 goto do_glob_dat;
8940 }
8941 else
8942 {
8943 asection *plt;
8944
8945 if (!h->pointer_equality_needed)
8946 abort ();
8947
8948 /* For non-shared object, we can't use .got.plt, which
8949 contains the real function address if we need pointer
8950 equality. We load the GOT entry with the PLT entry. */
8951 plt = htab->root.splt ? htab->root.splt : htab->root.iplt;
8952 bfd_put_NN (output_bfd, (plt->output_section->vma
8953 + plt->output_offset
8954 + h->plt.offset),
8955 htab->root.sgot->contents
8956 + (h->got.offset & ~(bfd_vma) 1));
8957 return TRUE;
8958 }
8959 }
0e1862bb 8960 else if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
a06ea964 8961 {
0ee3a6db 8962 if (!(h->def_regular || ELF_COMMON_DEF_P (h)))
a06ea964
NC		 8963 return FALSE;
8964
8965 BFD_ASSERT ((h->got.offset & 1) != 0);
a6bb11b2 8966 rela.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
a06ea964
NC		 8967 rela.r_addend = (h->root.u.def.value
8968 + h->root.u.def.section->output_section->vma
8969 + h->root.u.def.section->output_offset);
8970 }
8971 else
8972 {
49206388 8973do_glob_dat:
a06ea964 8974 BFD_ASSERT ((h->got.offset & 1) == 0);
cec5225b 8975 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964 8976 htab->root.sgot->contents + h->got.offset);
a6bb11b2 8977 rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (GLOB_DAT));
a06ea964
NC		 8978 rela.r_addend = 0;
8979 }
8980
8981 loc = htab->root.srelgot->contents;
8982 loc += htab->root.srelgot->reloc_count++ * RELOC_SIZE (htab);
cec5225b 8983 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964
NC		 8984 }
8985
8986 if (h->needs_copy)
8987 {
8988 Elf_Internal_Rela rela;
5474d94f 8989 asection *s;
a06ea964
NC		 8990 bfd_byte *loc;
8991
8992 /* This symbol needs a copy reloc. Set it up. */
a06ea964
NC		 8993 if (h->dynindx == -1
8994 || (h->root.type != bfd_link_hash_defined
8995 && h->root.type != bfd_link_hash_defweak)
9d19e4fd 8996 || htab->root.srelbss == NULL)
a06ea964
NC		 8997 abort ();
8998
8999 rela.r_offset = (h->root.u.def.value
9000 + h->root.u.def.section->output_section->vma
9001 + h->root.u.def.section->output_offset);
a6bb11b2 9002 rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (COPY));
a06ea964 9003 rela.r_addend = 0;
afbf7e8e 9004 if (h->root.u.def.section == htab->root.sdynrelro)
5474d94f
AM		 9005 s = htab->root.sreldynrelro;
9006 else
9007 s = htab->root.srelbss;
9008 loc = s->contents + s->reloc_count++ * RELOC_SIZE (htab);
cec5225b 9009 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964
NC		 9010 }
9011
9012 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. SYM may
9013 be NULL for local symbols. */
9014 if (sym != NULL
9637f6ef 9015 && (h == elf_hash_table (info)->hdynamic
a06ea964
NC		 9016 || h == elf_hash_table (info)->hgot))
9017 sym->st_shndx = SHN_ABS;
9018
9019 return TRUE;
9020}
9021
1419bbe5
WN		 9022/* Finish up local dynamic symbol handling. We set the contents of
9023 various dynamic sections here. */
9024
9025static bfd_boolean
9026elfNN_aarch64_finish_local_dynamic_symbol (void **slot, void *inf)
9027{
9028 struct elf_link_hash_entry *h
9029 = (struct elf_link_hash_entry *) *slot;
9030 struct bfd_link_info *info
9031 = (struct bfd_link_info *) inf;
9032
9033 return elfNN_aarch64_finish_dynamic_symbol (info->output_bfd,
9034 info, h, NULL);
9035}
9036
a06ea964 9037static void
cec5225b
YZ		 9038elfNN_aarch64_init_small_plt0_entry (bfd *output_bfd ATTRIBUTE_UNUSED,
9039 struct elf_aarch64_link_hash_table
a06ea964
NC		 9040 *htab)
9041{
9042 /* Fill in PLT0. Fixme:RR Note this doesn't distinguish between
9043 small and large plts and at the minute just generates
9044 the small PLT. */
9045
cec5225b 9046 /* PLT0 of the small PLT looks like this in ELF64 -
a06ea964
NC		 9047 stp x16, x30, [sp, #-16]! // Save the reloc and lr on stack.
9048 adrp x16, PLT_GOT + 16 // Get the page base of the GOTPLT
9049 ldr x17, [x16, #:lo12:PLT_GOT+16] // Load the address of the
9050 // symbol resolver
9051 add x16, x16, #:lo12:PLT_GOT+16 // Load the lo12 bits of the
9052 // GOTPLT entry for this.
9053 br x17
cec5225b 9054 PLT0 will be slightly different in ELF32 due to different got entry
2d0ca824 9055 size. */
caed7120 9056 bfd_vma plt_got_2nd_ent; /* Address of GOT[2]. */
a06ea964
NC		 9057 bfd_vma plt_base;
9058
9059
cec5225b 9060 memcpy (htab->root.splt->contents, elfNN_aarch64_small_plt0_entry,
a06ea964
NC		 9061 PLT_ENTRY_SIZE);
9062 elf_section_data (htab->root.splt->output_section)->this_hdr.sh_entsize =
9063 PLT_ENTRY_SIZE;
9064
caed7120
YZ		 9065 plt_got_2nd_ent = (htab->root.sgotplt->output_section->vma
9066 + htab->root.sgotplt->output_offset
9067 + GOT_ENTRY_SIZE * 2);
a06ea964
NC		 9068
9069 plt_base = htab->root.splt->output_section->vma +
f44a1f8e 9070 htab->root.splt->output_offset;
a06ea964
NC		 9071
9072 /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8.
9073 ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */
caed7120
YZ		 9074 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL,
9075 htab->root.splt->contents + 4,
9076 PG (plt_got_2nd_ent) - PG (plt_base + 4));
a06ea964 9077
caed7120
YZ		 9078 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12,
9079 htab->root.splt->contents + 8,
9080 PG_OFFSET (plt_got_2nd_ent));
a06ea964 9081
caed7120
YZ		 9082 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12,
9083 htab->root.splt->contents + 12,
9084 PG_OFFSET (plt_got_2nd_ent));
a06ea964
NC		 9085}
9086
9087static bfd_boolean
cec5225b 9088elfNN_aarch64_finish_dynamic_sections (bfd *output_bfd,
a06ea964
NC		 9089 struct bfd_link_info *info)
9090{
cec5225b 9091 struct elf_aarch64_link_hash_table *htab;
a06ea964
NC		 9092 bfd *dynobj;
9093 asection *sdyn;
9094
cec5225b 9095 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 9096 dynobj = htab->root.dynobj;
9097 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9098
9099 if (htab->root.dynamic_sections_created)
9100 {
cec5225b 9101 ElfNN_External_Dyn *dyncon, *dynconend;
a06ea964
NC		 9102
9103 if (sdyn == NULL || htab->root.sgot == NULL)
9104 abort ();
9105
cec5225b
YZ		 9106 dyncon = (ElfNN_External_Dyn *) sdyn->contents;
9107 dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
a06ea964
NC		 9108 for (; dyncon < dynconend; dyncon++)
9109 {
9110 Elf_Internal_Dyn dyn;
9111 asection *s;
9112
cec5225b 9113 bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
a06ea964
NC		 9114
9115 switch (dyn.d_tag)
9116 {
9117 default:
9118 continue;
9119
9120 case DT_PLTGOT:
9121 s = htab->root.sgotplt;
9122 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9123 break;
9124
9125 case DT_JMPREL:
4ade44b7
AM		 9126 s = htab->root.srelplt;
9127 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
a06ea964
NC		 9128 break;
9129
9130 case DT_PLTRELSZ:
c955de36 9131 s = htab->root.srelplt;
a06ea964
NC		 9132 dyn.d_un.d_val = s->size;
9133 break;
9134
a06ea964
NC		 9135 case DT_TLSDESC_PLT:
9136 s = htab->root.splt;
9137 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
9138 + htab->tlsdesc_plt;
9139 break;
9140
9141 case DT_TLSDESC_GOT:
9142 s = htab->root.sgot;
9143 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
9144 + htab->dt_tlsdesc_got;
9145 break;
9146 }
9147
cec5225b 9148 bfd_elfNN_swap_dyn_out (output_bfd, &dyn, dyncon);
a06ea964
NC		 9149 }
9150
9151 }
9152
9153 /* Fill in the special first entry in the procedure linkage table. */
9154 if (htab->root.splt && htab->root.splt->size > 0)
9155 {
cec5225b 9156 elfNN_aarch64_init_small_plt0_entry (output_bfd, htab);
a06ea964
NC		 9157
9158 elf_section_data (htab->root.splt->output_section)->
9159 this_hdr.sh_entsize = htab->plt_entry_size;
9160
9161
9162 if (htab->tlsdesc_plt)
9163 {
cec5225b 9164 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 9165 htab->root.sgot->contents + htab->dt_tlsdesc_got);
9166
9167 memcpy (htab->root.splt->contents + htab->tlsdesc_plt,
cec5225b
YZ		 9168 elfNN_aarch64_tlsdesc_small_plt_entry,
9169 sizeof (elfNN_aarch64_tlsdesc_small_plt_entry));
a06ea964
NC		 9170
9171 {
9172 bfd_vma adrp1_addr =
9173 htab->root.splt->output_section->vma
9174 + htab->root.splt->output_offset + htab->tlsdesc_plt + 4;
9175
caed7120 9176 bfd_vma adrp2_addr = adrp1_addr + 4;
a06ea964
NC		 9177
9178 bfd_vma got_addr =
9179 htab->root.sgot->output_section->vma
9180 + htab->root.sgot->output_offset;
9181
9182 bfd_vma pltgot_addr =
9183 htab->root.sgotplt->output_section->vma
9184 + htab->root.sgotplt->output_offset;
9185
9186 bfd_vma dt_tlsdesc_got = got_addr + htab->dt_tlsdesc_got;
caed7120
YZ		 9187
9188 bfd_byte *plt_entry =
9189 htab->root.splt->contents + htab->tlsdesc_plt;
a06ea964
NC		 9190
9191 /* adrp x2, DT_TLSDESC_GOT */
caed7120
YZ		 9192 elf_aarch64_update_plt_entry (output_bfd,
9193 BFD_RELOC_AARCH64_ADR_HI21_PCREL,
9194 plt_entry + 4,
9195 (PG (dt_tlsdesc_got)
9196 - PG (adrp1_addr)));
a06ea964
NC		 9197
9198 /* adrp x3, 0 */
caed7120
YZ		 9199 elf_aarch64_update_plt_entry (output_bfd,
9200 BFD_RELOC_AARCH64_ADR_HI21_PCREL,
9201 plt_entry + 8,
9202 (PG (pltgot_addr)
9203 - PG (adrp2_addr)));
a06ea964
NC		 9204
9205 /* ldr x2, [x2, #0] */
caed7120
YZ		 9206 elf_aarch64_update_plt_entry (output_bfd,
9207 BFD_RELOC_AARCH64_LDSTNN_LO12,
9208 plt_entry + 12,
9209 PG_OFFSET (dt_tlsdesc_got));
a06ea964
NC		 9210
9211 /* add x3, x3, 0 */
caed7120
YZ		 9212 elf_aarch64_update_plt_entry (output_bfd,
9213 BFD_RELOC_AARCH64_ADD_LO12,
9214 plt_entry + 16,
9215 PG_OFFSET (pltgot_addr));
a06ea964
NC		 9216 }
9217 }
9218 }
9219
9220 if (htab->root.sgotplt)
9221 {
9222 if (bfd_is_abs_section (htab->root.sgotplt->output_section))
9223 {
4eca0228 9224 _bfd_error_handler
a06ea964
NC		 9225 (_("discarded output section: `%A'"), htab->root.sgotplt);
9226 return FALSE;
9227 }
9228
9229 /* Fill in the first three entries in the global offset table. */
9230 if (htab->root.sgotplt->size > 0)
9231 {
8db339a6
MS		 9232 bfd_put_NN (output_bfd, (bfd_vma) 0, htab->root.sgotplt->contents);
9233
a06ea964 9234 /* Write GOT[1] and GOT[2], needed for the dynamic linker. */
cec5225b 9235 bfd_put_NN (output_bfd,
a06ea964
NC		 9236 (bfd_vma) 0,
9237 htab->root.sgotplt->contents + GOT_ENTRY_SIZE);
cec5225b 9238 bfd_put_NN (output_bfd,
a06ea964
NC		 9239 (bfd_vma) 0,
9240 htab->root.sgotplt->contents + GOT_ENTRY_SIZE * 2);
9241 }
9242
8db339a6
MS		 9243 if (htab->root.sgot)
9244 {
9245 if (htab->root.sgot->size > 0)
9246 {
9247 bfd_vma addr =
9248 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0;
9249 bfd_put_NN (output_bfd, addr, htab->root.sgot->contents);
9250 }
9251 }
9252
a06ea964
NC		 9253 elf_section_data (htab->root.sgotplt->output_section)->
9254 this_hdr.sh_entsize = GOT_ENTRY_SIZE;
9255 }
9256
9257 if (htab->root.sgot && htab->root.sgot->size > 0)
9258 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize
9259 = GOT_ENTRY_SIZE;
9260
1419bbe5
WN		 9261 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
9262 htab_traverse (htab->loc_hash_table,
9263 elfNN_aarch64_finish_local_dynamic_symbol,
9264 info);
9265
a06ea964
NC		 9266 return TRUE;
9267}
9268
9269/* Return address for Ith PLT stub in section PLT, for relocation REL
9270 or (bfd_vma) -1 if it should not be included. */
9271
9272static bfd_vma
cec5225b 9273elfNN_aarch64_plt_sym_val (bfd_vma i, const asection *plt,
a06ea964
NC		 9274 const arelent *rel ATTRIBUTE_UNUSED)
9275{
9276 return plt->vma + PLT_ENTRY_SIZE + i * PLT_SMALL_ENTRY_SIZE;
9277}
9278
d691934d
NC		 9279/* Returns TRUE if NAME is an AArch64 mapping symbol.
9280 The ARM ELF standard defines $x (for A64 code) and $d (for data).
9281 It also allows a period initiated suffix to be added to the symbol, ie:
9282 "$[adtx]\.[:sym_char]+". */
9283
9284static bfd_boolean
9285is_aarch64_mapping_symbol (const char * name)
9286{
9287 return name != NULL /* Paranoia. */
9288 && name[0] == '$' /* Note: if objcopy --prefix-symbols has been used then
9289 the mapping symbols could have acquired a prefix.
9290 We do not support this here, since such symbols no
9291 longer conform to the ARM ELF ABI. */
9292 && (name[1] == 'd' || name[1] == 'x')
9293 && (name[2] == 0 || name[2] == '.');
9294 /* FIXME: Strictly speaking the symbol is only a valid mapping symbol if
9295 any characters that follow the period are legal characters for the body
9296 of a symbol's name. For now we just assume that this is the case. */
9297}
9298
9299/* Make sure that mapping symbols in object files are not removed via the
9300 "strip --strip-unneeded" tool. These symbols might needed in order to
9301 correctly generate linked files. Once an object file has been linked,
9302 it should be safe to remove them. */
9303
9304static void
9305elfNN_aarch64_backend_symbol_processing (bfd *abfd, asymbol *sym)
9306{
9307 if (((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
9308 && sym->section != bfd_abs_section_ptr
9309 && is_aarch64_mapping_symbol (sym->name))
9310 sym->flags |= BSF_KEEP;
9311}
9312
a06ea964
NC		 9313
9314/* We use this so we can override certain functions
9315 (though currently we don't). */
9316
cec5225b 9317const struct elf_size_info elfNN_aarch64_size_info =
a06ea964 9318{
cec5225b
YZ		 9319 sizeof (ElfNN_External_Ehdr),
9320 sizeof (ElfNN_External_Phdr),
9321 sizeof (ElfNN_External_Shdr),
9322 sizeof (ElfNN_External_Rel),
9323 sizeof (ElfNN_External_Rela),
9324 sizeof (ElfNN_External_Sym),
9325 sizeof (ElfNN_External_Dyn),
a06ea964
NC		 9326 sizeof (Elf_External_Note),
9327 4, /* Hash table entry size. */
9328 1, /* Internal relocs per external relocs. */
cec5225b
YZ		 9329 ARCH_SIZE, /* Arch size. */
9330 LOG_FILE_ALIGN, /* Log_file_align. */
9331 ELFCLASSNN, EV_CURRENT,
9332 bfd_elfNN_write_out_phdrs,
9333 bfd_elfNN_write_shdrs_and_ehdr,
9334 bfd_elfNN_checksum_contents,
9335 bfd_elfNN_write_relocs,
9336 bfd_elfNN_swap_symbol_in,
9337 bfd_elfNN_swap_symbol_out,
9338 bfd_elfNN_slurp_reloc_table,
9339 bfd_elfNN_slurp_symbol_table,
9340 bfd_elfNN_swap_dyn_in,
9341 bfd_elfNN_swap_dyn_out,
9342 bfd_elfNN_swap_reloc_in,
9343 bfd_elfNN_swap_reloc_out,
9344 bfd_elfNN_swap_reloca_in,
9345 bfd_elfNN_swap_reloca_out
a06ea964
NC		 9346};
9347
9348#define ELF_ARCH bfd_arch_aarch64
9349#define ELF_MACHINE_CODE EM_AARCH64
9350#define ELF_MAXPAGESIZE 0x10000
9351#define ELF_MINPAGESIZE 0x1000
9352#define ELF_COMMONPAGESIZE 0x1000
9353
cec5225b
YZ		 9354#define bfd_elfNN_close_and_cleanup \
9355 elfNN_aarch64_close_and_cleanup
a06ea964 9356
cec5225b
YZ		 9357#define bfd_elfNN_bfd_free_cached_info \
9358 elfNN_aarch64_bfd_free_cached_info
a06ea964 9359
cec5225b
YZ		 9360#define bfd_elfNN_bfd_is_target_special_symbol \
9361 elfNN_aarch64_is_target_special_symbol
a06ea964 9362
cec5225b
YZ		 9363#define bfd_elfNN_bfd_link_hash_table_create \
9364 elfNN_aarch64_link_hash_table_create
a06ea964 9365
cec5225b
YZ		 9366#define bfd_elfNN_bfd_merge_private_bfd_data \
9367 elfNN_aarch64_merge_private_bfd_data
a06ea964 9368
cec5225b
YZ		 9369#define bfd_elfNN_bfd_print_private_bfd_data \
9370 elfNN_aarch64_print_private_bfd_data
a06ea964 9371
cec5225b
YZ		 9372#define bfd_elfNN_bfd_reloc_type_lookup \
9373 elfNN_aarch64_reloc_type_lookup
a06ea964 9374
cec5225b
YZ		 9375#define bfd_elfNN_bfd_reloc_name_lookup \
9376 elfNN_aarch64_reloc_name_lookup
a06ea964 9377
cec5225b
YZ		 9378#define bfd_elfNN_bfd_set_private_flags \
9379 elfNN_aarch64_set_private_flags
a06ea964 9380
cec5225b
YZ		 9381#define bfd_elfNN_find_inliner_info \
9382 elfNN_aarch64_find_inliner_info
a06ea964 9383
cec5225b
YZ		 9384#define bfd_elfNN_find_nearest_line \
9385 elfNN_aarch64_find_nearest_line
a06ea964 9386
cec5225b
YZ		 9387#define bfd_elfNN_mkobject \
9388 elfNN_aarch64_mkobject
a06ea964 9389
cec5225b
YZ		 9390#define bfd_elfNN_new_section_hook \
9391 elfNN_aarch64_new_section_hook
a06ea964
NC		 9392
9393#define elf_backend_adjust_dynamic_symbol \
cec5225b 9394 elfNN_aarch64_adjust_dynamic_symbol
a06ea964
NC		 9395
9396#define elf_backend_always_size_sections \
cec5225b 9397 elfNN_aarch64_always_size_sections
a06ea964
NC		 9398
9399#define elf_backend_check_relocs \
cec5225b 9400 elfNN_aarch64_check_relocs
a06ea964
NC		 9401
9402#define elf_backend_copy_indirect_symbol \
cec5225b 9403 elfNN_aarch64_copy_indirect_symbol
a06ea964
NC		 9404
9405/* Create .dynbss, and .rela.bss sections in DYNOBJ, and set up shortcuts
9406 to them in our hash. */
9407#define elf_backend_create_dynamic_sections \
cec5225b 9408 elfNN_aarch64_create_dynamic_sections
a06ea964
NC		 9409
9410#define elf_backend_init_index_section \
9411 _bfd_elf_init_2_index_sections
9412
a06ea964 9413#define elf_backend_finish_dynamic_sections \
cec5225b 9414 elfNN_aarch64_finish_dynamic_sections
a06ea964
NC		 9415
9416#define elf_backend_finish_dynamic_symbol \
cec5225b 9417 elfNN_aarch64_finish_dynamic_symbol
a06ea964
NC		 9418
9419#define elf_backend_gc_sweep_hook \
cec5225b 9420 elfNN_aarch64_gc_sweep_hook
a06ea964
NC		 9421
9422#define elf_backend_object_p \
cec5225b 9423 elfNN_aarch64_object_p
a06ea964
NC		 9424
9425#define elf_backend_output_arch_local_syms \
cec5225b 9426 elfNN_aarch64_output_arch_local_syms
a06ea964
NC		 9427
9428#define elf_backend_plt_sym_val \
cec5225b 9429 elfNN_aarch64_plt_sym_val
a06ea964
NC		 9430
9431#define elf_backend_post_process_headers \
cec5225b 9432 elfNN_aarch64_post_process_headers
a06ea964
NC		 9433
9434#define elf_backend_relocate_section \
cec5225b 9435 elfNN_aarch64_relocate_section
a06ea964
NC		 9436
9437#define elf_backend_reloc_type_class \
cec5225b 9438 elfNN_aarch64_reloc_type_class
a06ea964 9439
a06ea964 9440#define elf_backend_section_from_shdr \
cec5225b 9441 elfNN_aarch64_section_from_shdr
a06ea964
NC		 9442
9443#define elf_backend_size_dynamic_sections \
cec5225b 9444 elfNN_aarch64_size_dynamic_sections
a06ea964
NC		 9445
9446#define elf_backend_size_info \
cec5225b 9447 elfNN_aarch64_size_info
a06ea964 9448
68fcca92
JW		 9449#define elf_backend_write_section \
9450 elfNN_aarch64_write_section
9451
d691934d
NC		 9452#define elf_backend_symbol_processing \
9453 elfNN_aarch64_backend_symbol_processing
9454
a06ea964 9455#define elf_backend_can_refcount 1
59c108f7 9456#define elf_backend_can_gc_sections 1
a06ea964
NC		 9457#define elf_backend_plt_readonly 1
9458#define elf_backend_want_got_plt 1
9459#define elf_backend_want_plt_sym 0
5474d94f 9460#define elf_backend_want_dynrelro 1
a06ea964
NC		 9461#define elf_backend_may_use_rel_p 0
9462#define elf_backend_may_use_rela_p 1
9463#define elf_backend_default_use_rela_p 1
2e0488d3 9464#define elf_backend_rela_normal 1
64f52338 9465#define elf_backend_dtrel_excludes_plt 1
a06ea964 9466#define elf_backend_got_header_size (GOT_ENTRY_SIZE * 3)
c495064d 9467#define elf_backend_default_execstack 0
32f573bc 9468#define elf_backend_extern_protected_data 1
7f784814 9469#define elf_backend_hash_symbol elf_aarch64_hash_symbol
a06ea964
NC		 9470
9471#undef elf_backend_obj_attrs_section
9472#define elf_backend_obj_attrs_section ".ARM.attributes"
9473
cec5225b 9474#include "elfNN-target.h"
a75cf613
ES		 9475
9476/* CloudABI support. */
9477
9478#undef TARGET_LITTLE_SYM
9479#define TARGET_LITTLE_SYM aarch64_elfNN_le_cloudabi_vec
9480#undef TARGET_LITTLE_NAME
9481#define TARGET_LITTLE_NAME "elfNN-littleaarch64-cloudabi"
9482#undef TARGET_BIG_SYM
9483#define TARGET_BIG_SYM aarch64_elfNN_be_cloudabi_vec
9484#undef TARGET_BIG_NAME
9485#define TARGET_BIG_NAME "elfNN-bigaarch64-cloudabi"
9486
9487#undef ELF_OSABI
9488#define ELF_OSABI ELFOSABI_CLOUDABI
9489
9490#undef elfNN_bed
9491#define elfNN_bed elfNN_aarch64_cloudabi_bed
9492
9493#include "elfNN-target.h"
GDB Binutils - Deliverables
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