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pr20882 testcase
[deliverable/binutils-gdb.git] / bfd / elfnn-aarch64.c
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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
NC		 251
252#define ELIMINATE_COPY_RELOCS 0
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
1873 if (initialized_p == FALSE)
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
4e7fbb34
JW		 4910/* Perform a relocation as part of a final link. The input relocation type
4911 should be TLS relaxed. */
4912
a06ea964 4913static bfd_reloc_status_type
cec5225b 4914elfNN_aarch64_final_link_relocate (reloc_howto_type *howto,
a06ea964
NC		 4915 bfd *input_bfd,
4916 bfd *output_bfd,
4917 asection *input_section,
4918 bfd_byte *contents,
4919 Elf_Internal_Rela *rel,
4920 bfd_vma value,
4921 struct bfd_link_info *info,
4922 asection *sym_sec,
4923 struct elf_link_hash_entry *h,
4924 bfd_boolean *unresolved_reloc_p,
4925 bfd_boolean save_addend,
1419bbe5
WN		 4926 bfd_vma *saved_addend,
4927 Elf_Internal_Sym *sym)
a06ea964 4928{
1419bbe5 4929 Elf_Internal_Shdr *symtab_hdr;
a06ea964 4930 unsigned int r_type = howto->type;
a6bb11b2
YZ		 4931 bfd_reloc_code_real_type bfd_r_type
4932 = elfNN_aarch64_bfd_reloc_from_howto (howto);
a06ea964
NC		 4933 unsigned long r_symndx;
4934 bfd_byte *hit_data = contents + rel->r_offset;
b53b1bed 4935 bfd_vma place, off;
a06ea964 4936 bfd_signed_vma signed_addend;
cec5225b 4937 struct elf_aarch64_link_hash_table *globals;
a06ea964 4938 bfd_boolean weak_undef_p;
b53b1bed 4939 asection *base_got;
a06ea964 4940
cec5225b 4941 globals = elf_aarch64_hash_table (info);
a06ea964 4942
1419bbe5
WN		 4943 symtab_hdr = &elf_symtab_hdr (input_bfd);
4944
a06ea964
NC		 4945 BFD_ASSERT (is_aarch64_elf (input_bfd));
4946
cec5225b 4947 r_symndx = ELFNN_R_SYM (rel->r_info);
a06ea964 4948
a06ea964
NC		 4949 place = input_section->output_section->vma
4950 + input_section->output_offset + rel->r_offset;
4951
4952 /* Get addend, accumulating the addend for consecutive relocs
4953 which refer to the same offset. */
4954 signed_addend = saved_addend ? *saved_addend : 0;
4955 signed_addend += rel->r_addend;
4956
4957 weak_undef_p = (h ? h->root.type == bfd_link_hash_undefweak
4958 : bfd_is_und_section (sym_sec));
a6bb11b2 4959
1419bbe5
WN		 4960 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle
4961 it here if it is defined in a non-shared object. */
4962 if (h != NULL
4963 && h->type == STT_GNU_IFUNC
4964 && h->def_regular)
4965 {
4966 asection *plt;
4967 const char *name;
99ad26cb 4968 bfd_vma addend = 0;
1419bbe5
WN		 4969
4970 if ((input_section->flags & SEC_ALLOC) == 0
4971 || h->plt.offset == (bfd_vma) -1)
4972 abort ();
4973
4974 /* STT_GNU_IFUNC symbol must go through PLT. */
4975 plt = globals->root.splt ? globals->root.splt : globals->root.iplt;
4976 value = (plt->output_section->vma + plt->output_offset + h->plt.offset);
4977
4978 switch (bfd_r_type)
4979 {
4980 default:
4981 if (h->root.root.string)
4982 name = h->root.root.string;
4983 else
4984 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4985 NULL);
4eca0228 4986 _bfd_error_handler
695344c0 4987 /* xgettext:c-format */
1419bbe5
WN		 4988 (_("%B: relocation %s against STT_GNU_IFUNC "
4989 "symbol `%s' isn't handled by %s"), input_bfd,
4990 howto->name, name, __FUNCTION__);
4991 bfd_set_error (bfd_error_bad_value);
4992 return FALSE;
4993
4994 case BFD_RELOC_AARCH64_NN:
4995 if (rel->r_addend != 0)
4996 {
4997 if (h->root.root.string)
4998 name = h->root.root.string;
4999 else
5000 name = bfd_elf_sym_name (input_bfd, symtab_hdr,
5001 sym, NULL);
4eca0228 5002 _bfd_error_handler
695344c0 5003 /* xgettext:c-format */
1419bbe5
WN		 5004 (_("%B: relocation %s against STT_GNU_IFUNC "
5005 "symbol `%s' has non-zero addend: %d"),
5006 input_bfd, howto->name, name, rel->r_addend);
5007 bfd_set_error (bfd_error_bad_value);
5008 return FALSE;
5009 }
5010
5011 /* Generate dynamic relocation only when there is a
5012 non-GOT reference in a shared object. */
0e1862bb 5013 if (bfd_link_pic (info) && h->non_got_ref)
1419bbe5
WN		 5014 {
5015 Elf_Internal_Rela outrel;
5016 asection *sreloc;
5017
5018 /* Need a dynamic relocation to get the real function
5019 address. */
5020 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
5021 info,
5022 input_section,
5023 rel->r_offset);
5024 if (outrel.r_offset == (bfd_vma) -1
5025 || outrel.r_offset == (bfd_vma) -2)
5026 abort ();
5027
5028 outrel.r_offset += (input_section->output_section->vma
5029 + input_section->output_offset);
5030
5031 if (h->dynindx == -1
5032 || h->forced_local
0e1862bb 5033 || bfd_link_executable (info))
1419bbe5
WN		 5034 {
5035 /* This symbol is resolved locally. */
5036 outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE));
5037 outrel.r_addend = (h->root.u.def.value
5038 + h->root.u.def.section->output_section->vma
5039 + h->root.u.def.section->output_offset);
5040 }
5041 else
5042 {
5043 outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type);
5044 outrel.r_addend = 0;
5045 }
5046
5047 sreloc = globals->root.irelifunc;
5048 elf_append_rela (output_bfd, sreloc, &outrel);
5049
5050 /* If this reloc is against an external symbol, we
5051 do not want to fiddle with the addend. Otherwise,
5052 we need to include the symbol value so that it
5053 becomes an addend for the dynamic reloc. For an
5054 internal symbol, we have updated addend. */
5055 return bfd_reloc_ok;
5056 }
5057 /* FALLTHROUGH */
1419bbe5 5058 case BFD_RELOC_AARCH64_CALL26:
ce336788 5059 case BFD_RELOC_AARCH64_JUMP26:
1419bbe5
WN		 5060 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5061 signed_addend,
5062 weak_undef_p);
5063 return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type,
5064 howto, value);
1419bbe5
WN		 5065 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
5066 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 5067 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
ce336788 5068 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
99ad26cb 5069 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
dc8008f5 5070 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 5071 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
a2e1db00 5072 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
ce336788 5073 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
1419bbe5
WN		 5074 base_got = globals->root.sgot;
5075 off = h->got.offset;
5076
5077 if (base_got == NULL)
5078 abort ();
5079
5080 if (off == (bfd_vma) -1)
5081 {
5082 bfd_vma plt_index;
5083
5084 /* We can't use h->got.offset here to save state, or
5085 even just remember the offset, as finish_dynamic_symbol
5086 would use that as offset into .got. */
5087
5088 if (globals->root.splt != NULL)
5089 {
b1ee0cc4
WN		 5090 plt_index = ((h->plt.offset - globals->plt_header_size) /
5091 globals->plt_entry_size);
1419bbe5
WN		 5092 off = (plt_index + 3) * GOT_ENTRY_SIZE;
5093 base_got = globals->root.sgotplt;
5094 }
5095 else
5096 {
5097 plt_index = h->plt.offset / globals->plt_entry_size;
5098 off = plt_index * GOT_ENTRY_SIZE;
5099 base_got = globals->root.igotplt;
5100 }
5101
5102 if (h->dynindx == -1
5103 || h->forced_local
5104 || info->symbolic)
5105 {
5106 /* This references the local definition. We must
5107 initialize this entry in the global offset table.
5108 Since the offset must always be a multiple of 8,
5109 we use the least significant bit to record
5110 whether we have initialized it already.
5111
5112 When doing a dynamic link, we create a .rela.got
5113 relocation entry to initialize the value. This
5114 is done in the finish_dynamic_symbol routine. */
5115 if ((off & 1) != 0)
5116 off &= ~1;
5117 else
5118 {
5119 bfd_put_NN (output_bfd, value,
5120 base_got->contents + off);
5121 /* Note that this is harmless as -1 | 1 still is -1. */
5122 h->got.offset |= 1;
5123 }
5124 }
5125 value = (base_got->output_section->vma
5126 + base_got->output_offset + off);
5127 }
5128 else
5129 value = aarch64_calculate_got_entry_vma (h, globals, info,
5130 value, output_bfd,
5131 unresolved_reloc_p);
a0becb89
RL		 5132
5133 switch (bfd_r_type)
5134 {
5135 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
5136 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
5137 addend = (globals->root.sgot->output_section->vma
5138 + globals->root.sgot->output_offset);
5139 break;
dc8008f5 5140 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 5141 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
a2e1db00
RL		 5142 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
5143 value = (value - globals->root.sgot->output_section->vma
5144 - globals->root.sgot->output_offset);
a0becb89
RL		 5145 default:
5146 break;
5147 }
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. */
0e1862bb
L		 5172 if (((bfd_link_pic (info) == TRUE)
5173 || globals->root.is_relocatable_executable)
a06ea964
NC		 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 {
5179 Elf_Internal_Rela outrel;
5180 bfd_byte *loc;
5181 bfd_boolean skip, relocate;
5182 asection *sreloc;
5183
5184 *unresolved_reloc_p = FALSE;
5185
a06ea964
NC		 5186 skip = FALSE;
5187 relocate = FALSE;
5188
5189 outrel.r_addend = signed_addend;
5190 outrel.r_offset =
5191 _bfd_elf_section_offset (output_bfd, info, input_section,
5192 rel->r_offset);
5193 if (outrel.r_offset == (bfd_vma) - 1)
5194 skip = TRUE;
5195 else if (outrel.r_offset == (bfd_vma) - 2)
5196 {
5197 skip = TRUE;
5198 relocate = TRUE;
5199 }
5200
5201 outrel.r_offset += (input_section->output_section->vma
5202 + input_section->output_offset);
5203
5204 if (skip)
5205 memset (&outrel, 0, sizeof outrel);
5206 else if (h != NULL
5207 && h->dynindx != -1
0e1862bb 5208 && (!bfd_link_pic (info)
ac33b731
JW		 5209 || !(bfd_link_pie (info)
5210 || SYMBOLIC_BIND (info, h))
0e1862bb 5211 || !h->def_regular))
cec5225b 5212 outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type);
a06ea964
NC		 5213 else
5214 {
5215 int symbol;
5216
5217 /* On SVR4-ish systems, the dynamic loader cannot
5218 relocate the text and data segments independently,
5219 so the symbol does not matter. */
5220 symbol = 0;
1f56df9d 5221 relocate = globals->no_apply_dynamic_relocs ? FALSE : TRUE;
a6bb11b2 5222 outrel.r_info = ELFNN_R_INFO (symbol, AARCH64_R (RELATIVE));
a06ea964
NC		 5223 outrel.r_addend += value;
5224 }
5225
1419bbe5
WN		 5226 sreloc = elf_section_data (input_section)->sreloc;
5227 if (sreloc == NULL || sreloc->contents == NULL)
5228 return bfd_reloc_notsupported;
5229
5230 loc = sreloc->contents + sreloc->reloc_count++ * RELOC_SIZE (globals);
cec5225b 5231 bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
a06ea964 5232
1419bbe5 5233 if (sreloc->reloc_count * RELOC_SIZE (globals) > sreloc->size)
a06ea964
NC		 5234 {
5235 /* Sanity to check that we have previously allocated
5236 sufficient space in the relocation section for the
5237 number of relocations we actually want to emit. */
5238 abort ();
5239 }
5240
5241 /* If this reloc is against an external symbol, we do not want to
5242 fiddle with the addend. Otherwise, we need to include the symbol
5243 value so that it becomes an addend for the dynamic reloc. */
5244 if (!relocate)
5245 return bfd_reloc_ok;
5246
5247 return _bfd_final_link_relocate (howto, input_bfd, input_section,
5248 contents, rel->r_offset, value,
5249 signed_addend);
5250 }
5251 else
5252 value += signed_addend;
5253 break;
5254
a6bb11b2 5255 case BFD_RELOC_AARCH64_CALL26:
ce336788 5256 case BFD_RELOC_AARCH64_JUMP26:
a06ea964
NC		 5257 {
5258 asection *splt = globals->root.splt;
5259 bfd_boolean via_plt_p =
5260 splt != NULL && h != NULL && h->plt.offset != (bfd_vma) - 1;
5261
5262 /* A call to an undefined weak symbol is converted to a jump to
5263 the next instruction unless a PLT entry will be created.
5264 The jump to the next instruction is optimized as a NOP.
5265 Do the same for local undefined symbols. */
5266 if (weak_undef_p && ! via_plt_p)
5267 {
5268 bfd_putl32 (INSN_NOP, hit_data);
5269 return bfd_reloc_ok;
5270 }
5271
5272 /* If the call goes through a PLT entry, make sure to
5273 check distance to the right destination address. */
5274 if (via_plt_p)
07f9ddfe
JW		 5275 value = (splt->output_section->vma
5276 + splt->output_offset + h->plt.offset);
5277
5278 /* Check if a stub has to be inserted because the destination
5279 is too far away. */
5280 struct elf_aarch64_stub_hash_entry *stub_entry = NULL;
2f340668
JW		 5281
5282 /* If the branch destination is directed to plt stub, "value" will be
5283 the final destination, otherwise we should plus signed_addend, it may
5284 contain non-zero value, for example call to local function symbol
5285 which are turned into "sec_sym + sec_off", and sec_off is kept in
5286 signed_addend. */
5287 if (! aarch64_valid_branch_p (via_plt_p ? value : value + signed_addend,
5288 place))
07f9ddfe
JW		 5289 /* The target is out of reach, so redirect the branch to
5290 the local stub for this function. */
5291 stub_entry = elfNN_aarch64_get_stub_entry (input_section, sym_sec, h,
5292 rel, globals);
5293 if (stub_entry != NULL)
2f340668
JW		 5294 {
5295 value = (stub_entry->stub_offset
5296 + stub_entry->stub_sec->output_offset
5297 + stub_entry->stub_sec->output_section->vma);
5298
5299 /* We have redirected the destination to stub entry address,
5300 so ignore any addend record in the original rela entry. */
5301 signed_addend = 0;
5302 }
a06ea964 5303 }
caed7120
YZ		 5304 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5305 signed_addend, weak_undef_p);
07f9ddfe 5306 *unresolved_reloc_p = FALSE;
a06ea964
NC		 5307 break;
5308
dcbd20eb
JW		 5309 case BFD_RELOC_AARCH64_16_PCREL:
5310 case BFD_RELOC_AARCH64_32_PCREL:
5311 case BFD_RELOC_AARCH64_64_PCREL:
ce336788
JW		 5312 case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
5313 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
5314 case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
5315 case BFD_RELOC_AARCH64_LD_LO19_PCREL:
0e1862bb 5316 if (bfd_link_pic (info)
dcbd20eb
JW		 5317 && (input_section->flags & SEC_ALLOC) != 0
5318 && (input_section->flags & SEC_READONLY) != 0
5319 && h != NULL
5320 && !h->def_regular)
5321 {
5322 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
5323
4eca0228 5324 _bfd_error_handler
695344c0 5325 /* xgettext:c-format */
dcbd20eb
JW		 5326 (_("%B: relocation %s against external symbol `%s' can not be used"
5327 " when making a shared object; recompile with -fPIC"),
5328 input_bfd, elfNN_aarch64_howto_table[howto_index].name,
5329 h->root.root.string);
5330 bfd_set_error (bfd_error_bad_value);
5331 return FALSE;
5332 }
1a0670f3 5333 /* Fall through. */
dcbd20eb 5334
a6bb11b2 5335 case BFD_RELOC_AARCH64_16:
92d77487
RL		 5336#if ARCH_SIZE == 64
5337 case BFD_RELOC_AARCH64_32:
5338#endif
a6bb11b2 5339 case BFD_RELOC_AARCH64_ADD_LO12:
a6bb11b2 5340 case BFD_RELOC_AARCH64_BRANCH19:
ce336788 5341 case BFD_RELOC_AARCH64_LDST128_LO12:
a6bb11b2
YZ		 5342 case BFD_RELOC_AARCH64_LDST16_LO12:
5343 case BFD_RELOC_AARCH64_LDST32_LO12:
5344 case BFD_RELOC_AARCH64_LDST64_LO12:
ce336788 5345 case BFD_RELOC_AARCH64_LDST8_LO12:
a6bb11b2
YZ		 5346 case BFD_RELOC_AARCH64_MOVW_G0:
5347 case BFD_RELOC_AARCH64_MOVW_G0_NC:
ce336788 5348 case BFD_RELOC_AARCH64_MOVW_G0_S:
a6bb11b2
YZ		 5349 case BFD_RELOC_AARCH64_MOVW_G1:
5350 case BFD_RELOC_AARCH64_MOVW_G1_NC:
ce336788 5351 case BFD_RELOC_AARCH64_MOVW_G1_S:
a6bb11b2
YZ		 5352 case BFD_RELOC_AARCH64_MOVW_G2:
5353 case BFD_RELOC_AARCH64_MOVW_G2_NC:
ce336788 5354 case BFD_RELOC_AARCH64_MOVW_G2_S:
a6bb11b2 5355 case BFD_RELOC_AARCH64_MOVW_G3:
a6bb11b2 5356 case BFD_RELOC_AARCH64_TSTBR14:
caed7120
YZ		 5357 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5358 signed_addend, weak_undef_p);
a06ea964
NC		 5359 break;
5360
a6bb11b2
YZ		 5361 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
5362 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 5363 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
ce336788 5364 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
99ad26cb 5365 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
ce336788 5366 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
a06ea964
NC		 5367 if (globals->root.sgot == NULL)
5368 BFD_ASSERT (h != NULL);
5369
5370 if (h != NULL)
5371 {
99ad26cb 5372 bfd_vma addend = 0;
a06ea964
NC		 5373 value = aarch64_calculate_got_entry_vma (h, globals, info, value,
5374 output_bfd,
5375 unresolved_reloc_p);
7018c030
JW		 5376 if (bfd_r_type == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15
5377 || bfd_r_type == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14)
99ad26cb
JW		 5378 addend = (globals->root.sgot->output_section->vma
5379 + globals->root.sgot->output_offset);
caed7120 5380 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
99ad26cb 5381 addend, weak_undef_p);
a06ea964 5382 }
b53b1bed
JW		 5383 else
5384 {
99ad26cb 5385 bfd_vma addend = 0;
b53b1bed
JW		 5386 struct elf_aarch64_local_symbol *locals
5387 = elf_aarch64_locals (input_bfd);
5388
5389 if (locals == NULL)
5390 {
5391 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
4eca0228 5392 _bfd_error_handler
695344c0 5393 /* xgettext:c-format */
b53b1bed
JW		 5394 (_("%B: Local symbol descriptor table be NULL when applying "
5395 "relocation %s against local symbol"),
5396 input_bfd, elfNN_aarch64_howto_table[howto_index].name);
5397 abort ();
5398 }
5399
5400 off = symbol_got_offset (input_bfd, h, r_symndx);
5401 base_got = globals->root.sgot;
5402 bfd_vma got_entry_addr = (base_got->output_section->vma
5403 + base_got->output_offset + off);
5404
5405 if (!symbol_got_offset_mark_p (input_bfd, h, r_symndx))
5406 {
5407 bfd_put_64 (output_bfd, value, base_got->contents + off);
5408
0e1862bb 5409 if (bfd_link_pic (info))
b53b1bed
JW		 5410 {
5411 asection *s;
5412 Elf_Internal_Rela outrel;
5413
5414 /* For local symbol, we have done absolute relocation in static
5415 linking stageh. While for share library, we need to update
5416 the content of GOT entry according to the share objects
5417 loading base address. So we need to generate a
5418 R_AARCH64_RELATIVE reloc for dynamic linker. */
5419 s = globals->root.srelgot;
5420 if (s == NULL)
5421 abort ();
5422
5423 outrel.r_offset = got_entry_addr;
5424 outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
5425 outrel.r_addend = value;
5426 elf_append_rela (output_bfd, s, &outrel);
5427 }
5428
5429 symbol_got_offset_mark (input_bfd, h, r_symndx);
5430 }
5431
5432 /* Update the relocation value to GOT entry addr as we have transformed
5433 the direct data access into indirect data access through GOT. */
5434 value = got_entry_addr;
99ad26cb 5435
7018c030
JW		 5436 if (bfd_r_type == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15
5437 || bfd_r_type == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14)
99ad26cb
JW		 5438 addend = base_got->output_section->vma + base_got->output_offset;
5439
5440 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5441 addend, weak_undef_p);
b53b1bed
JW		 5442 }
5443
a06ea964
NC		 5444 break;
5445
a2e1db00 5446 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
dc8008f5 5447 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 5448 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
a2e1db00
RL		 5449 if (h != NULL)
5450 value = aarch64_calculate_got_entry_vma (h, globals, info, value,
5451 output_bfd,
5452 unresolved_reloc_p);
5453 else
5454 {
5455 struct elf_aarch64_local_symbol *locals
5456 = elf_aarch64_locals (input_bfd);
5457
5458 if (locals == NULL)
5459 {
5460 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
4eca0228 5461 _bfd_error_handler
695344c0 5462 /* xgettext:c-format */
a2e1db00
RL		 5463 (_("%B: Local symbol descriptor table be NULL when applying "
5464 "relocation %s against local symbol"),
5465 input_bfd, elfNN_aarch64_howto_table[howto_index].name);
5466 abort ();
5467 }
5468
5469 off = symbol_got_offset (input_bfd, h, r_symndx);
5470 base_got = globals->root.sgot;
5471 if (base_got == NULL)
5472 abort ();
5473
5474 bfd_vma got_entry_addr = (base_got->output_section->vma
5475 + base_got->output_offset + off);
5476
5477 if (!symbol_got_offset_mark_p (input_bfd, h, r_symndx))
5478 {
5479 bfd_put_64 (output_bfd, value, base_got->contents + off);
5480
5481 if (bfd_link_pic (info))
5482 {
5483 asection *s;
5484 Elf_Internal_Rela outrel;
5485
5486 /* For local symbol, we have done absolute relocation in static
5487 linking stage. While for share library, we need to update
5488 the content of GOT entry according to the share objects
5489 loading base address. So we need to generate a
5490 R_AARCH64_RELATIVE reloc for dynamic linker. */
5491 s = globals->root.srelgot;
5492 if (s == NULL)
5493 abort ();
5494
5495 outrel.r_offset = got_entry_addr;
5496 outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
5497 outrel.r_addend = value;
5498 elf_append_rela (output_bfd, s, &outrel);
5499 }
5500
5501 symbol_got_offset_mark (input_bfd, h, r_symndx);
5502 }
5503 }
5504
5505 /* Update the relocation value to GOT entry addr as we have transformed
5506 the direct data access into indirect data access through GOT. */
5507 value = symbol_got_offset (input_bfd, h, r_symndx);
5508 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5509 0, weak_undef_p);
5510 *unresolved_reloc_p = FALSE;
5511 break;
5512
ce336788 5513 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a6bb11b2 5514 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 5515 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
a6bb11b2 5516 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a6bb11b2 5517 case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
ce336788 5518 case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
043bf05a 5519 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
73f925cc 5520 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 5521 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 5522 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
a06ea964
NC		 5523 if (globals->root.sgot == NULL)
5524 return bfd_reloc_notsupported;
5525
5526 value = (symbol_got_offset (input_bfd, h, r_symndx)
5527 + globals->root.sgot->output_section->vma
f44a1f8e 5528 + globals->root.sgot->output_offset);
a06ea964 5529
caed7120
YZ		 5530 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5531 0, weak_undef_p);
a06ea964
NC		 5532 *unresolved_reloc_p = FALSE;
5533 break;
5534
7ba7cfe4 5535 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 5536 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
3b957e5b
RL		 5537 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
5538 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
94facae3
RL		 5539 if (globals->root.sgot == NULL)
5540 return bfd_reloc_notsupported;
5541
5542 value = symbol_got_offset (input_bfd, h, r_symndx);
5543 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5544 0, weak_undef_p);
5545 *unresolved_reloc_p = FALSE;
5546 break;
5547
6ffe9a1b 5548 case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12:
40fbed84 5549 case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12:
753999c1 5550 case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC:
07c9aa07
JW		 5551 case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12:
5552 case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC:
5553 case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12:
5554 case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC:
5555 case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12:
5556 case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC:
5557 case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12:
5558 case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC:
6ffe9a1b
JW		 5559 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0:
5560 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC:
5561 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1:
5562 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC:
5563 case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2:
40fbed84
JW		 5564 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5565 signed_addend - dtpoff_base (info),
5566 weak_undef_p);
5567 break;
5568
a6bb11b2
YZ		 5569 case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
5570 case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
5571 case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
5572 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
5573 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
5574 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
5575 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
5576 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
caed7120
YZ		 5577 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5578 signed_addend - tpoff_base (info),
5579 weak_undef_p);
a06ea964
NC		 5580 *unresolved_reloc_p = FALSE;
5581 break;
5582
f955cccf 5583 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 5584 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 5585 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
a6bb11b2 5586 case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
f955cccf 5587 case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12:
1ada945d 5588 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
a06ea964
NC		 5589 if (globals->root.sgot == NULL)
5590 return bfd_reloc_notsupported;
a06ea964
NC		 5591 value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx)
5592 + globals->root.sgotplt->output_section->vma
f44a1f8e 5593 + globals->root.sgotplt->output_offset
a06ea964
NC		 5594 + globals->sgotplt_jump_table_size);
5595
caed7120
YZ		 5596 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5597 0, weak_undef_p);
a06ea964
NC		 5598 *unresolved_reloc_p = FALSE;
5599 break;
5600
0484b454
RL		 5601 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
5602 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
5603 if (globals->root.sgot == NULL)
5604 return bfd_reloc_notsupported;
5605
5606 value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx)
5607 + globals->root.sgotplt->output_section->vma
5608 + globals->root.sgotplt->output_offset
5609 + globals->sgotplt_jump_table_size);
5610
5611 value -= (globals->root.sgot->output_section->vma
5612 + globals->root.sgot->output_offset);
5613
5614 value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
5615 0, weak_undef_p);
5616 *unresolved_reloc_p = FALSE;
5617 break;
5618
a06ea964
NC		 5619 default:
5620 return bfd_reloc_notsupported;
5621 }
5622
5623 if (saved_addend)
5624 *saved_addend = value;
5625
5626 /* Only apply the final relocation in a sequence. */
5627 if (save_addend)
5628 return bfd_reloc_continue;
5629
caed7120
YZ		 5630 return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type,
5631 howto, value);
a06ea964
NC		 5632}
5633
2d0ca824
YN		 5634/* LP64 and ILP32 operates on x- and w-registers respectively.
5635 Next definitions take into account the difference between
5636 corresponding machine codes. R means x-register if the target
5637 arch is LP64, and w-register if the target is ILP32. */
5638
5639#if ARCH_SIZE == 64
5640# define add_R0_R0 (0x91000000)
5641# define add_R0_R0_R1 (0x8b000020)
5642# define add_R0_R1 (0x91400020)
5643# define ldr_R0 (0x58000000)
5644# define ldr_R0_mask(i) (i & 0xffffffe0)
5645# define ldr_R0_x0 (0xf9400000)
5646# define ldr_hw_R0 (0xf2a00000)
5647# define movk_R0 (0xf2800000)
5648# define movz_R0 (0xd2a00000)
5649# define movz_hw_R0 (0xd2c00000)
5650#else /*ARCH_SIZE == 32 */
5651# define add_R0_R0 (0x11000000)
5652# define add_R0_R0_R1 (0x0b000020)
5653# define add_R0_R1 (0x11400020)
5654# define ldr_R0 (0x18000000)
5655# define ldr_R0_mask(i) (i & 0xbfffffe0)
5656# define ldr_R0_x0 (0xb9400000)
5657# define ldr_hw_R0 (0x72a00000)
5658# define movk_R0 (0x72800000)
5659# define movz_R0 (0x52a00000)
5660# define movz_hw_R0 (0x52c00000)
5661#endif
5662
a06ea964
NC		 5663/* Handle TLS relaxations. Relaxing is possible for symbols that use
5664 R_AARCH64_TLSDESC_ADR_{PAGE, LD64_LO12_NC, ADD_LO12_NC} during a static
5665 link.
5666
5667 Return bfd_reloc_ok if we're done, bfd_reloc_continue if the caller
5668 is to then call final_link_relocate. Return other values in the
5669 case of error. */
5670
5671static bfd_reloc_status_type
cec5225b 5672elfNN_aarch64_tls_relax (struct elf_aarch64_link_hash_table *globals,
a06ea964 5673 bfd *input_bfd, bfd_byte *contents,
06d2788c 5674 Elf_Internal_Rela *rel, struct elf_link_hash_entry *h)
a06ea964
NC		 5675{
5676 bfd_boolean is_local = h == NULL;
cec5225b 5677 unsigned int r_type = ELFNN_R_TYPE (rel->r_info);
a06ea964
NC		 5678 unsigned long insn;
5679
5680 BFD_ASSERT (globals && input_bfd && contents && rel);
5681
a6bb11b2 5682 switch (elfNN_aarch64_bfd_reloc_from_type (r_type))
a06ea964 5683 {
a6bb11b2 5684 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
ce336788 5685 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
a06ea964
NC		 5686 if (is_local)
5687 {
5688 /* GD->LE relaxation:
2d0ca824 5689 adrp x0, :tlsgd:var => movz R0, :tprel_g1:var
a06ea964 5690 or
2d0ca824
YN		 5691 adrp x0, :tlsdesc:var => movz R0, :tprel_g1:var
5692
5693 Where R is x for LP64, and w for ILP32. */
5694 bfd_putl32 (movz_R0, contents + rel->r_offset);
a06ea964
NC		 5695 return bfd_reloc_continue;
5696 }
5697 else
5698 {
5699 /* GD->IE relaxation:
5700 adrp x0, :tlsgd:var => adrp x0, :gottprel:var
5701 or
5702 adrp x0, :tlsdesc:var => adrp x0, :gottprel:var
5703 */
a06ea964
NC		 5704 return bfd_reloc_continue;
5705 }
5706
389b8029
MS		 5707 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
5708 BFD_ASSERT (0);
5709 break;
5710
1ada945d
MS		 5711 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
5712 if (is_local)
5713 {
5714 /* Tiny TLSDESC->LE relaxation:
2d0ca824
YN		 5715 ldr x1, :tlsdesc:var => movz R0, #:tprel_g1:var
5716 adr x0, :tlsdesc:var => movk R0, #:tprel_g0_nc:var
1ada945d
MS		 5717 .tlsdesccall var
5718 blr x1 => nop
2d0ca824
YN		 5719
5720 Where R is x for LP64, and w for ILP32. */
1ada945d
MS		 5721 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21));
5722 BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL));
5723
5724 rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5725 AARCH64_R (TLSLE_MOVW_TPREL_G0_NC));
5726 rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5727
2d0ca824
YN		 5728 bfd_putl32 (movz_R0, contents + rel->r_offset);
5729 bfd_putl32 (movk_R0, contents + rel->r_offset + 4);
1ada945d
MS		 5730 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8);
5731 return bfd_reloc_continue;
5732 }
5733 else
5734 {
5735 /* Tiny TLSDESC->IE relaxation:
5736 ldr x1, :tlsdesc:var => ldr x0, :gottprel:var
5737 adr x0, :tlsdesc:var => nop
5738 .tlsdesccall var
5739 blr x1 => nop
5740 */
5741 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21));
5742 BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL));
5743
5744 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5745 rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5746
2d0ca824 5747 bfd_putl32 (ldr_R0, contents + rel->r_offset);
1ada945d
MS		 5748 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4);
5749 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8);
5750 return bfd_reloc_continue;
5751 }
5752
3c12b054
MS		 5753 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
5754 if (is_local)
5755 {
5756 /* Tiny GD->LE relaxation:
5757 adr x0, :tlsgd:var => mrs x1, tpidr_el0
2d0ca824
YN		 5758 bl __tls_get_addr => add R0, R1, #:tprel_hi12:x, lsl #12
5759 nop => add R0, R0, #:tprel_lo12_nc:x
5760
5761 Where R is x for LP64, and x for Ilp32. */
3c12b054
MS		 5762
5763 /* First kill the tls_get_addr reloc on the bl instruction. */
5764 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
5765
5766 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 0);
2d0ca824
YN		 5767 bfd_putl32 (add_R0_R1, contents + rel->r_offset + 4);
5768 bfd_putl32 (add_R0_R0, contents + rel->r_offset + 8);
3c12b054
MS		 5769
5770 rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5771 AARCH64_R (TLSLE_ADD_TPREL_LO12_NC));
5772 rel[1].r_offset = rel->r_offset + 8;
5773
5774 /* Move the current relocation to the second instruction in
5775 the sequence. */
5776 rel->r_offset += 4;
5777 rel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5778 AARCH64_R (TLSLE_ADD_TPREL_HI12));
5779 return bfd_reloc_continue;
5780 }
5781 else
5782 {
5783 /* Tiny GD->IE relaxation:
2d0ca824 5784 adr x0, :tlsgd:var => ldr R0, :gottprel:var
3c12b054 5785 bl __tls_get_addr => mrs x1, tpidr_el0
2d0ca824
YN		 5786 nop => add R0, R0, R1
5787
5788 Where R is x for LP64, and w for Ilp32. */
3c12b054
MS		 5789
5790 /* First kill the tls_get_addr reloc on the bl instruction. */
5791 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
5792 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5793
2d0ca824 5794 bfd_putl32 (ldr_R0, contents + rel->r_offset);
3c12b054 5795 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4);
2d0ca824 5796 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8);
3c12b054
MS		 5797 return bfd_reloc_continue;
5798 }
5799
ac734732
RL		 5800#if ARCH_SIZE == 64
5801 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
5802 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSGD_MOVW_G0_NC));
5803 BFD_ASSERT (rel->r_offset + 12 == rel[2].r_offset);
5804 BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (CALL26));
5805
5806 if (is_local)
5807 {
5808 /* Large GD->LE relaxation:
5809 movz x0, #:tlsgd_g1:var => movz x0, #:tprel_g2:var, lsl #32
5810 movk x0, #:tlsgd_g0_nc:var => movk x0, #:tprel_g1_nc:var, lsl #16
5811 add x0, gp, x0 => movk x0, #:tprel_g0_nc:var
5812 bl __tls_get_addr => mrs x1, tpidr_el0
5813 nop => add x0, x0, x1
5814 */
5815 rel[2].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
5816 AARCH64_R (TLSLE_MOVW_TPREL_G0_NC));
5817 rel[2].r_offset = rel->r_offset + 8;
5818
2d0ca824
YN		 5819 bfd_putl32 (movz_hw_R0, contents + rel->r_offset + 0);
5820 bfd_putl32 (ldr_hw_R0, contents + rel->r_offset + 4);
5821 bfd_putl32 (movk_R0, contents + rel->r_offset + 8);
ac734732 5822 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12);
2d0ca824 5823 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16);
ac734732
RL		 5824 }
5825 else
5826 {
5827 /* Large GD->IE relaxation:
5828 movz x0, #:tlsgd_g1:var => movz x0, #:gottprel_g1:var, lsl #16
5829 movk x0, #:tlsgd_g0_nc:var => movk x0, #:gottprel_g0_nc:var
5830 add x0, gp, x0 => ldr x0, [gp, x0]
5831 bl __tls_get_addr => mrs x1, tpidr_el0
5832 nop => add x0, x0, x1
5833 */
5834 rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
5835 bfd_putl32 (0xd2a80000, contents + rel->r_offset + 0);
2d0ca824 5836 bfd_putl32 (ldr_R0, contents + rel->r_offset + 8);
ac734732 5837 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12);
2d0ca824 5838 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16);
ac734732
RL		 5839 }
5840 return bfd_reloc_continue;
5841
5842 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
5843 return bfd_reloc_continue;
5844#endif
5845
043bf05a
MS		 5846 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
5847 return bfd_reloc_continue;
5848
a6bb11b2 5849 case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC:
a06ea964
NC		 5850 if (is_local)
5851 {
5852 /* GD->LE relaxation:
5853 ldr xd, [x0, #:tlsdesc_lo12:var] => movk x0, :tprel_g0_nc:var
2d0ca824
YN		 5854
5855 Where R is x for lp64 mode, and w for ILP32 mode. */
5856 bfd_putl32 (movk_R0, contents + rel->r_offset);
a06ea964
NC		 5857 return bfd_reloc_continue;
5858 }
5859 else
5860 {
5861 /* GD->IE relaxation:
2d0ca824
YN		 5862 ldr xd, [x0, #:tlsdesc_lo12:var] => ldr R0, [x0, #:gottprel_lo12:var]
5863
5864 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964 5865 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5866 bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset);
a06ea964
NC		 5867 return bfd_reloc_continue;
5868 }
5869
a6bb11b2 5870 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a06ea964
NC		 5871 if (is_local)
5872 {
5873 /* GD->LE relaxation
2d0ca824 5874 add x0, #:tlsgd_lo12:var => movk R0, :tprel_g0_nc:var
a06ea964 5875 bl __tls_get_addr => mrs x1, tpidr_el0
2d0ca824
YN		 5876 nop => add R0, R1, R0
5877
5878 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964
NC		 5879
5880 /* First kill the tls_get_addr reloc on the bl instruction. */
5881 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
cec5225b 5882 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
a06ea964 5883
2d0ca824 5884 bfd_putl32 (movk_R0, contents + rel->r_offset);
a06ea964 5885 bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4);
2d0ca824 5886 bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8);
a06ea964
NC		 5887 return bfd_reloc_continue;
5888 }
5889 else
5890 {
5891 /* GD->IE relaxation
5cd1d8bc 5892 ADD x0, #:tlsgd_lo12:var => ldr R0, [x0, #:gottprel_lo12:var]
a06ea964
NC		 5893 BL __tls_get_addr => mrs x1, tpidr_el0
5894 R_AARCH64_CALL26
5cd1d8bc
YN		 5895 NOP => add R0, R1, R0
5896
5897 Where R is x for lp64 mode, and w for ilp32 mode. */
a06ea964 5898
a6bb11b2 5899 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26));
a06ea964
NC		 5900
5901 /* Remove the relocation on the BL instruction. */
cec5225b 5902 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
a06ea964 5903
a06ea964
NC		 5904 /* We choose to fixup the BL and NOP instructions using the
5905 offset from the second relocation to allow flexibility in
5906 scheduling instructions between the ADD and BL. */
2d0ca824 5907 bfd_putl32 (ldr_R0_x0, contents + rel->r_offset);
5cd1d8bc 5908 bfd_putl32 (0xd53bd041, contents + rel[1].r_offset);
2d0ca824 5909 bfd_putl32 (add_R0_R0_R1, contents + rel[1].r_offset + 4);
a06ea964
NC		 5910 return bfd_reloc_continue;
5911 }
5912
0484b454 5913 case BFD_RELOC_AARCH64_TLSDESC_ADD:
f955cccf 5914 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 5915 case BFD_RELOC_AARCH64_TLSDESC_CALL:
a06ea964
NC		 5916 /* GD->IE/LE relaxation:
5917 add x0, x0, #:tlsdesc_lo12:var => nop
5918 blr xd => nop
5919 */
5920 bfd_putl32 (INSN_NOP, contents + rel->r_offset);
5921 return bfd_reloc_ok;
5922
0484b454
RL		 5923 case BFD_RELOC_AARCH64_TLSDESC_LDR:
5924 if (is_local)
5925 {
5926 /* GD->LE relaxation:
2d0ca824
YN		 5927 ldr xd, [gp, xn] => movk R0, #:tprel_g0_nc:var
5928
5929 Where R is x for lp64 mode, and w for ILP32 mode. */
5930 bfd_putl32 (movk_R0, contents + rel->r_offset);
0484b454
RL		 5931 return bfd_reloc_continue;
5932 }
5933 else
5934 {
5935 /* GD->IE relaxation:
2d0ca824
YN		 5936 ldr xd, [gp, xn] => ldr R0, [gp, xn]
5937
5938 Where R is x for lp64 mode, and w for ILP32 mode. */
0484b454 5939 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5940 bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset);
0484b454
RL		 5941 return bfd_reloc_ok;
5942 }
5943
5944 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
5945 /* GD->LE relaxation:
2d0ca824 5946 movk xd, #:tlsdesc_off_g0_nc:var => movk R0, #:tprel_g1_nc:var, lsl #16
0484b454 5947 GD->IE relaxation:
2d0ca824
YN		 5948 movk xd, #:tlsdesc_off_g0_nc:var => movk Rd, #:gottprel_g0_nc:var
5949
5950 Where R is x for lp64 mode, and w for ILP32 mode. */
0484b454 5951 if (is_local)
2d0ca824 5952 bfd_putl32 (ldr_hw_R0, contents + rel->r_offset);
0484b454
RL		 5953 return bfd_reloc_continue;
5954
5955 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
5956 if (is_local)
5957 {
5958 /* GD->LE relaxation:
2d0ca824
YN		 5959 movz xd, #:tlsdesc_off_g1:var => movz R0, #:tprel_g2:var, lsl #32
5960
5961 Where R is x for lp64 mode, and w for ILP32 mode. */
5962 bfd_putl32 (movz_hw_R0, contents + rel->r_offset);
0484b454
RL		 5963 return bfd_reloc_continue;
5964 }
5965 else
5966 {
5967 /* GD->IE relaxation:
2d0ca824
YN		 5968 movz xd, #:tlsdesc_off_g1:var => movz Rd, #:gottprel_g1:var, lsl #16
5969
5970 Where R is x for lp64 mode, and w for ILP32 mode. */
0484b454 5971 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5972 bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset);
0484b454
RL		 5973 return bfd_reloc_continue;
5974 }
5975
a6bb11b2 5976 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a06ea964 5977 /* IE->LE relaxation:
2d0ca824
YN		 5978 adrp xd, :gottprel:var => movz Rd, :tprel_g1:var
5979
5980 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964
NC		 5981 if (is_local)
5982 {
5983 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5984 bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset);
a06ea964
NC		 5985 }
5986 return bfd_reloc_continue;
5987
a6bb11b2 5988 case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC:
a06ea964 5989 /* IE->LE relaxation:
2d0ca824
YN		 5990 ldr xd, [xm, #:gottprel_lo12:var] => movk Rd, :tprel_g0_nc:var
5991
5992 Where R is x for lp64 mode, and w for ILP32 mode. */
a06ea964
NC		 5993 if (is_local)
5994 {
5995 insn = bfd_getl32 (contents + rel->r_offset);
2d0ca824 5996 bfd_putl32 (movk_R0 | (insn & 0x1f), contents + rel->r_offset);
a06ea964
NC		 5997 }
5998 return bfd_reloc_continue;
5999
259364ad
JW		 6000 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
6001 /* LD->LE relaxation (tiny):
6002 adr x0, :tlsldm:x => mrs x0, tpidr_el0
c1fc2d7e
YN		 6003 bl __tls_get_addr => add R0, R0, TCB_SIZE
6004
6005 Where R is x for lp64 mode, and w for ilp32 mode. */
259364ad
JW		 6006 if (is_local)
6007 {
6008 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
6009 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26));
6010 /* No need of CALL26 relocation for tls_get_addr. */
6011 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
6012 bfd_putl32 (0xd53bd040, contents + rel->r_offset + 0);
2d0ca824
YN		 6013 bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10),
6014 contents + rel->r_offset + 4);
259364ad
JW		 6015 return bfd_reloc_ok;
6016 }
6017 return bfd_reloc_continue;
6018
6019 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
6020 /* LD->LE relaxation (small):
6021 adrp x0, :tlsldm:x => mrs x0, tpidr_el0
6022 */
6023 if (is_local)
6024 {
6025 bfd_putl32 (0xd53bd040, contents + rel->r_offset);
6026 return bfd_reloc_ok;
6027 }
6028 return bfd_reloc_continue;
6029
6030 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
6031 /* LD->LE relaxation (small):
c1fc2d7e 6032 add x0, #:tlsldm_lo12:x => add R0, R0, TCB_SIZE
259364ad 6033 bl __tls_get_addr => nop
c1fc2d7e
YN		 6034
6035 Where R is x for lp64 mode, and w for ilp32 mode. */
259364ad
JW		 6036 if (is_local)
6037 {
6038 BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset);
6039 BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26));
6040 /* No need of CALL26 relocation for tls_get_addr. */
6041 rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
2d0ca824
YN		 6042 bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10),
6043 contents + rel->r_offset + 0);
c1fc2d7e 6044 bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4);
259364ad
JW		 6045 return bfd_reloc_ok;
6046 }
6047 return bfd_reloc_continue;
6048
a06ea964
NC		 6049 default:
6050 return bfd_reloc_continue;
6051 }
6052
6053 return bfd_reloc_ok;
6054}
6055
6056/* Relocate an AArch64 ELF section. */
6057
6058static bfd_boolean
cec5225b 6059elfNN_aarch64_relocate_section (bfd *output_bfd,
a06ea964
NC		 6060 struct bfd_link_info *info,
6061 bfd *input_bfd,
6062 asection *input_section,
6063 bfd_byte *contents,
6064 Elf_Internal_Rela *relocs,
6065 Elf_Internal_Sym *local_syms,
6066 asection **local_sections)
6067{
6068 Elf_Internal_Shdr *symtab_hdr;
6069 struct elf_link_hash_entry **sym_hashes;
6070 Elf_Internal_Rela *rel;
6071 Elf_Internal_Rela *relend;
6072 const char *name;
cec5225b 6073 struct elf_aarch64_link_hash_table *globals;
a06ea964
NC		 6074 bfd_boolean save_addend = FALSE;
6075 bfd_vma addend = 0;
6076
cec5225b 6077 globals = elf_aarch64_hash_table (info);
a06ea964
NC		 6078
6079 symtab_hdr = &elf_symtab_hdr (input_bfd);
6080 sym_hashes = elf_sym_hashes (input_bfd);
6081
6082 rel = relocs;
6083 relend = relocs + input_section->reloc_count;
6084 for (; rel < relend; rel++)
6085 {
6086 unsigned int r_type;
a6bb11b2
YZ		 6087 bfd_reloc_code_real_type bfd_r_type;
6088 bfd_reloc_code_real_type relaxed_bfd_r_type;
a06ea964
NC		 6089 reloc_howto_type *howto;
6090 unsigned long r_symndx;
6091 Elf_Internal_Sym *sym;
6092 asection *sec;
6093 struct elf_link_hash_entry *h;
6094 bfd_vma relocation;
6095 bfd_reloc_status_type r;
6096 arelent bfd_reloc;
6097 char sym_type;
6098 bfd_boolean unresolved_reloc = FALSE;
6099 char *error_message = NULL;
6100
cec5225b
YZ		 6101 r_symndx = ELFNN_R_SYM (rel->r_info);
6102 r_type = ELFNN_R_TYPE (rel->r_info);
a06ea964 6103
cec5225b 6104 bfd_reloc.howto = elfNN_aarch64_howto_from_type (r_type);
a06ea964
NC		 6105 howto = bfd_reloc.howto;
6106
7fcfd62d
NC		 6107 if (howto == NULL)
6108 {
695344c0 6109 /* xgettext:c-format */
4eca0228 6110 _bfd_error_handler
7fcfd62d 6111 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
c08bb8dd 6112 input_bfd, r_type, input_section);
7fcfd62d
NC		 6113 return FALSE;
6114 }
a6bb11b2 6115 bfd_r_type = elfNN_aarch64_bfd_reloc_from_howto (howto);
7fcfd62d 6116
a06ea964
NC		 6117 h = NULL;
6118 sym = NULL;
6119 sec = NULL;
6120
6121 if (r_symndx < symtab_hdr->sh_info)
6122 {
6123 sym = local_syms + r_symndx;
cec5225b 6124 sym_type = ELFNN_ST_TYPE (sym->st_info);
a06ea964
NC		 6125 sec = local_sections[r_symndx];
6126
6127 /* An object file might have a reference to a local
6128 undefined symbol. This is a daft object file, but we
6129 should at least do something about it. */
6130 if (r_type != R_AARCH64_NONE && r_type != R_AARCH64_NULL
6131 && bfd_is_und_section (sec)
6132 && ELF_ST_BIND (sym->st_info) != STB_WEAK)
1a72702b
AM		 6133 (*info->callbacks->undefined_symbol)
6134 (info, bfd_elf_string_from_elf_section
6135 (input_bfd, symtab_hdr->sh_link, sym->st_name),
6136 input_bfd, input_section, rel->r_offset, TRUE);
a06ea964 6137
a06ea964 6138 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1419bbe5
WN		 6139
6140 /* Relocate against local STT_GNU_IFUNC symbol. */
0e1862bb 6141 if (!bfd_link_relocatable (info)
1419bbe5
WN		 6142 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
6143 {
6144 h = elfNN_aarch64_get_local_sym_hash (globals, input_bfd,
6145 rel, FALSE);
6146 if (h == NULL)
6147 abort ();
6148
6149 /* Set STT_GNU_IFUNC symbol value. */
6150 h->root.u.def.value = sym->st_value;
6151 h->root.u.def.section = sec;
6152 }
a06ea964
NC		 6153 }
6154 else
6155 {
62d887d4 6156 bfd_boolean warned, ignored;
a06ea964
NC		 6157
6158 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
6159 r_symndx, symtab_hdr, sym_hashes,
6160 h, sec, relocation,
62d887d4 6161 unresolved_reloc, warned, ignored);
a06ea964
NC		 6162
6163 sym_type = h->type;
6164 }
6165
6166 if (sec != NULL && discarded_section (sec))
6167 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
6168 rel, 1, relend, howto, 0, contents);
6169
0e1862bb 6170 if (bfd_link_relocatable (info))
2e0488d3 6171 continue;
a06ea964
NC		 6172
6173 if (h != NULL)
6174 name = h->root.root.string;
6175 else
6176 {
6177 name = (bfd_elf_string_from_elf_section
6178 (input_bfd, symtab_hdr->sh_link, sym->st_name));
6179 if (name == NULL || *name == '\0')
6180 name = bfd_section_name (input_bfd, sec);
6181 }
6182
6183 if (r_symndx != 0
6184 && r_type != R_AARCH64_NONE
6185 && r_type != R_AARCH64_NULL
6186 && (h == NULL
6187 || h->root.type == bfd_link_hash_defined
6188 || h->root.type == bfd_link_hash_defweak)
a6bb11b2 6189 && IS_AARCH64_TLS_RELOC (bfd_r_type) != (sym_type == STT_TLS))
a06ea964 6190 {
4eca0228 6191 _bfd_error_handler
a06ea964 6192 ((sym_type == STT_TLS
695344c0 6193 /* xgettext:c-format */
a06ea964 6194 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
695344c0 6195 /* xgettext:c-format */
a06ea964
NC		 6196 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s")),
6197 input_bfd,
6198 input_section, (long) rel->r_offset, howto->name, name);
6199 }
6200
a06ea964
NC		 6201 /* We relax only if we can see that there can be a valid transition
6202 from a reloc type to another.
cec5225b 6203 We call elfNN_aarch64_final_link_relocate unless we're completely
a06ea964
NC		 6204 done, i.e., the relaxation produced the final output we want. */
6205
a6bb11b2
YZ		 6206 relaxed_bfd_r_type = aarch64_tls_transition (input_bfd, info, r_type,
6207 h, r_symndx);
6208 if (relaxed_bfd_r_type != bfd_r_type)
a06ea964 6209 {
a6bb11b2
YZ		 6210 bfd_r_type = relaxed_bfd_r_type;
6211 howto = elfNN_aarch64_howto_from_bfd_reloc (bfd_r_type);
6212 BFD_ASSERT (howto != NULL);
6213 r_type = howto->type;
06d2788c 6214 r = elfNN_aarch64_tls_relax (globals, input_bfd, contents, rel, h);
a06ea964
NC		 6215 unresolved_reloc = 0;
6216 }
6217 else
6218 r = bfd_reloc_continue;
6219
6220 /* There may be multiple consecutive relocations for the
6221 same offset. In that case we are supposed to treat the
6222 output of each relocation as the addend for the next. */
6223 if (rel + 1 < relend
6224 && rel->r_offset == rel[1].r_offset
cec5225b
YZ		 6225 && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NONE
6226 && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NULL)
a06ea964
NC		 6227 save_addend = TRUE;
6228 else
6229 save_addend = FALSE;
6230
6231 if (r == bfd_reloc_continue)
cec5225b 6232 r = elfNN_aarch64_final_link_relocate (howto, input_bfd, output_bfd,
a06ea964
NC		 6233 input_section, contents, rel,
6234 relocation, info, sec,
6235 h, &unresolved_reloc,
1419bbe5 6236 save_addend, &addend, sym);
a06ea964 6237
a6bb11b2 6238 switch (elfNN_aarch64_bfd_reloc_from_type (r_type))
a06ea964 6239 {
ce336788 6240 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
a6bb11b2 6241 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 6242 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
7ba7cfe4 6243 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 6244 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
73f925cc 6245 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 6246 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 6247 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
a06ea964
NC		 6248 if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx))
6249 {
6250 bfd_boolean need_relocs = FALSE;
6251 bfd_byte *loc;
6252 int indx;
6253 bfd_vma off;
6254
6255 off = symbol_got_offset (input_bfd, h, r_symndx);
6256 indx = h && h->dynindx != -1 ? h->dynindx : 0;
6257
6258 need_relocs =
0e1862bb 6259 (bfd_link_pic (info) || indx != 0) &&
a06ea964
NC		 6260 (h == NULL
6261 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6262 || h->root.type != bfd_link_hash_undefweak);
6263
6264 BFD_ASSERT (globals->root.srelgot != NULL);
6265
6266 if (need_relocs)
6267 {
6268 Elf_Internal_Rela rela;
a6bb11b2 6269 rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPMOD));
a06ea964
NC		 6270 rela.r_addend = 0;
6271 rela.r_offset = globals->root.sgot->output_section->vma +
6272 globals->root.sgot->output_offset + off;
6273
6274
6275 loc = globals->root.srelgot->contents;
6276 loc += globals->root.srelgot->reloc_count++
6277 * RELOC_SIZE (htab);
cec5225b 6278 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964 6279
f69e4920
JW		 6280 bfd_reloc_code_real_type real_type =
6281 elfNN_aarch64_bfd_reloc_from_type (r_type);
6282
6283 if (real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21
73f925cc
JW		 6284 || real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21
6285 || real_type == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC)
77a69ff8
JW		 6286 {
6287 /* For local dynamic, don't generate DTPREL in any case.
6288 Initialize the DTPREL slot into zero, so we get module
6289 base address when invoke runtime TLS resolver. */
6290 bfd_put_NN (output_bfd, 0,
6291 globals->root.sgot->contents + off
6292 + GOT_ENTRY_SIZE);
6293 }
6294 else if (indx == 0)
a06ea964 6295 {
cec5225b 6296 bfd_put_NN (output_bfd,
a06ea964
NC		 6297 relocation - dtpoff_base (info),
6298 globals->root.sgot->contents + off
6299 + GOT_ENTRY_SIZE);
6300 }
6301 else
6302 {
6303 /* This TLS symbol is global. We emit a
6304 relocation to fixup the tls offset at load
6305 time. */
6306 rela.r_info =
a6bb11b2 6307 ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPREL));
a06ea964
NC		 6308 rela.r_addend = 0;
6309 rela.r_offset =
6310 (globals->root.sgot->output_section->vma
6311 + globals->root.sgot->output_offset + off
6312 + GOT_ENTRY_SIZE);
6313
6314 loc = globals->root.srelgot->contents;
6315 loc += globals->root.srelgot->reloc_count++
6316 * RELOC_SIZE (globals);
cec5225b
YZ		 6317 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
6318 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 6319 globals->root.sgot->contents + off
6320 + GOT_ENTRY_SIZE);
6321 }
6322 }
6323 else
6324 {
cec5225b 6325 bfd_put_NN (output_bfd, (bfd_vma) 1,
a06ea964 6326 globals->root.sgot->contents + off);
cec5225b 6327 bfd_put_NN (output_bfd,
a06ea964
NC		 6328 relocation - dtpoff_base (info),
6329 globals->root.sgot->contents + off
6330 + GOT_ENTRY_SIZE);
6331 }
6332
6333 symbol_got_offset_mark (input_bfd, h, r_symndx);
6334 }
6335 break;
6336
a6bb11b2
YZ		 6337 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
6338 case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC:
043bf05a 6339 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
3b957e5b
RL		 6340 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
6341 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
a06ea964
NC		 6342 if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx))
6343 {
6344 bfd_boolean need_relocs = FALSE;
6345 bfd_byte *loc;
6346 int indx;
6347 bfd_vma off;
6348
6349 off = symbol_got_offset (input_bfd, h, r_symndx);
6350
6351 indx = h && h->dynindx != -1 ? h->dynindx : 0;
6352
6353 need_relocs =
0e1862bb 6354 (bfd_link_pic (info) || indx != 0) &&
a06ea964
NC		 6355 (h == NULL
6356 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6357 || h->root.type != bfd_link_hash_undefweak);
6358
6359 BFD_ASSERT (globals->root.srelgot != NULL);
6360
6361 if (need_relocs)
6362 {
6363 Elf_Internal_Rela rela;
6364
6365 if (indx == 0)
6366 rela.r_addend = relocation - dtpoff_base (info);
6367 else
6368 rela.r_addend = 0;
6369
a6bb11b2 6370 rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_TPREL));
a06ea964
NC		 6371 rela.r_offset = globals->root.sgot->output_section->vma +
6372 globals->root.sgot->output_offset + off;
6373
6374 loc = globals->root.srelgot->contents;
6375 loc += globals->root.srelgot->reloc_count++
6376 * RELOC_SIZE (htab);
6377
cec5225b 6378 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964 6379
cec5225b 6380 bfd_put_NN (output_bfd, rela.r_addend,
a06ea964
NC		 6381 globals->root.sgot->contents + off);
6382 }
6383 else
cec5225b 6384 bfd_put_NN (output_bfd, relocation - tpoff_base (info),
a06ea964
NC		 6385 globals->root.sgot->contents + off);
6386
6387 symbol_got_offset_mark (input_bfd, h, r_symndx);
6388 }
6389 break;
6390
f955cccf 6391 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
a6bb11b2 6392 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 6393 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
a6bb11b2 6394 case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC:
1ada945d 6395 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
0484b454
RL		 6396 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
6397 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
a06ea964
NC		 6398 if (! symbol_tlsdesc_got_offset_mark_p (input_bfd, h, r_symndx))
6399 {
6400 bfd_boolean need_relocs = FALSE;
6401 int indx = h && h->dynindx != -1 ? h->dynindx : 0;
6402 bfd_vma off = symbol_tlsdesc_got_offset (input_bfd, h, r_symndx);
6403
6404 need_relocs = (h == NULL
6405 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6406 || h->root.type != bfd_link_hash_undefweak);
6407
6408 BFD_ASSERT (globals->root.srelgot != NULL);
6409 BFD_ASSERT (globals->root.sgot != NULL);
6410
6411 if (need_relocs)
6412 {
6413 bfd_byte *loc;
6414 Elf_Internal_Rela rela;
a6bb11b2
YZ		 6415 rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLSDESC));
6416
a06ea964
NC		 6417 rela.r_addend = 0;
6418 rela.r_offset = (globals->root.sgotplt->output_section->vma
6419 + globals->root.sgotplt->output_offset
6420 + off + globals->sgotplt_jump_table_size);
6421
6422 if (indx == 0)
6423 rela.r_addend = relocation - dtpoff_base (info);
6424
6425 /* Allocate the next available slot in the PLT reloc
6426 section to hold our R_AARCH64_TLSDESC, the next
6427 available slot is determined from reloc_count,
6428 which we step. But note, reloc_count was
6429 artifically moved down while allocating slots for
6430 real PLT relocs such that all of the PLT relocs
6431 will fit above the initial reloc_count and the
6432 extra stuff will fit below. */
6433 loc = globals->root.srelplt->contents;
6434 loc += globals->root.srelplt->reloc_count++
6435 * RELOC_SIZE (globals);
6436
cec5225b 6437 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964 6438
cec5225b 6439 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 6440 globals->root.sgotplt->contents + off +
6441 globals->sgotplt_jump_table_size);
cec5225b 6442 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 6443 globals->root.sgotplt->contents + off +
6444 globals->sgotplt_jump_table_size +
6445 GOT_ENTRY_SIZE);
6446 }
6447
6448 symbol_tlsdesc_got_offset_mark (input_bfd, h, r_symndx);
6449 }
6450 break;
a6bb11b2
YZ		 6451 default:
6452 break;
a06ea964
NC		 6453 }
6454
a06ea964
NC		 6455 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
6456 because such sections are not SEC_ALLOC and thus ld.so will
6457 not process them. */
6458 if (unresolved_reloc
6459 && !((input_section->flags & SEC_DEBUGGING) != 0
6460 && h->def_dynamic)
6461 && _bfd_elf_section_offset (output_bfd, info, input_section,
6462 +rel->r_offset) != (bfd_vma) - 1)
6463 {
4eca0228 6464 _bfd_error_handler
695344c0
NC		 6465 /* xgettext:c-format */
6466 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
a06ea964
NC		 6467 input_bfd, input_section, (long) rel->r_offset, howto->name,
6468 h->root.root.string);
6469 return FALSE;
6470 }
6471
6472 if (r != bfd_reloc_ok && r != bfd_reloc_continue)
6473 {
c674f5cd
JW		 6474 bfd_reloc_code_real_type real_r_type
6475 = elfNN_aarch64_bfd_reloc_from_type (r_type);
6476
a06ea964
NC		 6477 switch (r)
6478 {
6479 case bfd_reloc_overflow:
1a72702b
AM		 6480 (*info->callbacks->reloc_overflow)
6481 (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0,
6482 input_bfd, input_section, rel->r_offset);
c674f5cd
JW		 6483 if (real_r_type == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15
6484 || real_r_type == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14)
6485 {
6486 (*info->callbacks->warning)
6487 (info,
6488 _("Too many GOT entries for -fpic, "
6489 "please recompile with -fPIC"),
6490 name, input_bfd, input_section, rel->r_offset);
6491 return FALSE;
6492 }
027e9c75
NC		 6493 /* Overflow can occur when a variable is referenced with a type
6494 that has a larger alignment than the type with which it was
6495 declared. eg:
6496 file1.c: extern int foo; int a (void) { return foo; }
6497 file2.c: char bar, foo, baz;
6498 If the variable is placed into a data section at an offset
6499 that is incompatible with the larger alignment requirement
6500 overflow will occur. (Strictly speaking this is not overflow
6501 but rather an alignment problem, but the bfd_reloc_ error
6502 enum does not have a value to cover that situation).
6503
6504 Try to catch this situation here and provide a more helpful
6505 error message to the user. */
6506 if (addend & ((1 << howto->rightshift) - 1)
6507 /* FIXME: Are we testing all of the appropriate reloc
6508 types here ? */
6509 && (real_r_type == BFD_RELOC_AARCH64_LD_LO19_PCREL
6510 || real_r_type == BFD_RELOC_AARCH64_LDST16_LO12
6511 || real_r_type == BFD_RELOC_AARCH64_LDST32_LO12
6512 || real_r_type == BFD_RELOC_AARCH64_LDST64_LO12
6513 || real_r_type == BFD_RELOC_AARCH64_LDST128_LO12))
6514 {
6515 info->callbacks->warning
6516 (info, _("One possible cause of this error is that the \
6517symbol is being referenced in the indicated code as if it had a larger \
6518alignment than was declared where it was defined."),
6519 name, input_bfd, input_section, rel->r_offset);
6520 }
a06ea964
NC		 6521 break;
6522
6523 case bfd_reloc_undefined:
1a72702b
AM		 6524 (*info->callbacks->undefined_symbol)
6525 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
a06ea964
NC		 6526 break;
6527
6528 case bfd_reloc_outofrange:
6529 error_message = _("out of range");
6530 goto common_error;
6531
6532 case bfd_reloc_notsupported:
6533 error_message = _("unsupported relocation");
6534 goto common_error;
6535
6536 case bfd_reloc_dangerous:
6537 /* error_message should already be set. */
6538 goto common_error;
6539
6540 default:
6541 error_message = _("unknown error");
6542 /* Fall through. */
6543
6544 common_error:
6545 BFD_ASSERT (error_message != NULL);
1a72702b
AM		 6546 (*info->callbacks->reloc_dangerous)
6547 (info, error_message, input_bfd, input_section, rel->r_offset);
a06ea964
NC		 6548 break;
6549 }
6550 }
027e9c75
NC		 6551
6552 if (!save_addend)
6553 addend = 0;
a06ea964
NC		 6554 }
6555
6556 return TRUE;
6557}
6558
6559/* Set the right machine number. */
6560
6561static bfd_boolean
cec5225b 6562elfNN_aarch64_object_p (bfd *abfd)
a06ea964 6563{
cec5225b
YZ		 6564#if ARCH_SIZE == 32
6565 bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64_ilp32);
6566#else
a06ea964 6567 bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64);
cec5225b 6568#endif
a06ea964
NC		 6569 return TRUE;
6570}
6571
6572/* Function to keep AArch64 specific flags in the ELF header. */
6573
6574static bfd_boolean
cec5225b 6575elfNN_aarch64_set_private_flags (bfd *abfd, flagword flags)
a06ea964
NC		 6576{
6577 if (elf_flags_init (abfd) && elf_elfheader (abfd)->e_flags != flags)
6578 {
6579 }
6580 else
6581 {
6582 elf_elfheader (abfd)->e_flags = flags;
6583 elf_flags_init (abfd) = TRUE;
6584 }
6585
6586 return TRUE;
6587}
6588
a06ea964
NC		 6589/* Merge backend specific data from an object file to the output
6590 object file when linking. */
6591
6592static bfd_boolean
50e03d47 6593elfNN_aarch64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
a06ea964 6594{
50e03d47 6595 bfd *obfd = info->output_bfd;
a06ea964
NC		 6596 flagword out_flags;
6597 flagword in_flags;
6598 bfd_boolean flags_compatible = TRUE;
6599 asection *sec;
6600
6601 /* Check if we have the same endianess. */
50e03d47 6602 if (!_bfd_generic_verify_endian_match (ibfd, info))
a06ea964
NC		 6603 return FALSE;
6604
6605 if (!is_aarch64_elf (ibfd) || !is_aarch64_elf (obfd))
6606 return TRUE;
6607
6608 /* The input BFD must have had its flags initialised. */
6609 /* The following seems bogus to me -- The flags are initialized in
6610 the assembler but I don't think an elf_flags_init field is
6611 written into the object. */
6612 /* BFD_ASSERT (elf_flags_init (ibfd)); */
6613
6614 in_flags = elf_elfheader (ibfd)->e_flags;
6615 out_flags = elf_elfheader (obfd)->e_flags;
6616
6617 if (!elf_flags_init (obfd))
6618 {
6619 /* If the input is the default architecture and had the default
6620 flags then do not bother setting the flags for the output
6621 architecture, instead allow future merges to do this. If no
6622 future merges ever set these flags then they will retain their
6623 uninitialised values, which surprise surprise, correspond
6624 to the default values. */
6625 if (bfd_get_arch_info (ibfd)->the_default
6626 && elf_elfheader (ibfd)->e_flags == 0)
6627 return TRUE;
6628
6629 elf_flags_init (obfd) = TRUE;
6630 elf_elfheader (obfd)->e_flags = in_flags;
6631
6632 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
6633 && bfd_get_arch_info (obfd)->the_default)
6634 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
6635 bfd_get_mach (ibfd));
6636
6637 return TRUE;
6638 }
6639
6640 /* Identical flags must be compatible. */
6641 if (in_flags == out_flags)
6642 return TRUE;
6643
6644 /* Check to see if the input BFD actually contains any sections. If
6645 not, its flags may not have been initialised either, but it
6646 cannot actually cause any incompatiblity. Do not short-circuit
6647 dynamic objects; their section list may be emptied by
6648 elf_link_add_object_symbols.
6649
6650 Also check to see if there are no code sections in the input.
6651 In this case there is no need to check for code specific flags.
6652 XXX - do we need to worry about floating-point format compatability
6653 in data sections ? */
6654 if (!(ibfd->flags & DYNAMIC))
6655 {
6656 bfd_boolean null_input_bfd = TRUE;
6657 bfd_boolean only_data_sections = TRUE;
6658
6659 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6660 {
6661 if ((bfd_get_section_flags (ibfd, sec)
6662 & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
6663 == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
6664 only_data_sections = FALSE;
6665
6666 null_input_bfd = FALSE;
6667 break;
6668 }
6669
6670 if (null_input_bfd || only_data_sections)
6671 return TRUE;
6672 }
6673
6674 return flags_compatible;
6675}
6676
6677/* Display the flags field. */
6678
6679static bfd_boolean
cec5225b 6680elfNN_aarch64_print_private_bfd_data (bfd *abfd, void *ptr)
a06ea964
NC		 6681{
6682 FILE *file = (FILE *) ptr;
6683 unsigned long flags;
6684
6685 BFD_ASSERT (abfd != NULL && ptr != NULL);
6686
6687 /* Print normal ELF private data. */
6688 _bfd_elf_print_private_bfd_data (abfd, ptr);
6689
6690 flags = elf_elfheader (abfd)->e_flags;
6691 /* Ignore init flag - it may not be set, despite the flags field
6692 containing valid data. */
6693
6694 /* xgettext:c-format */
6695 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
6696
6697 if (flags)
6698 fprintf (file, _("<Unrecognised flag bits set>"));
6699
6700 fputc ('\n', file);
6701
6702 return TRUE;
6703}
6704
6705/* Update the got entry reference counts for the section being removed. */
6706
6707static bfd_boolean
cec5225b 6708elfNN_aarch64_gc_sweep_hook (bfd *abfd,
cb8af559
NC		 6709 struct bfd_link_info *info,
6710 asection *sec,
6711 const Elf_Internal_Rela * relocs)
a06ea964 6712{
cec5225b 6713 struct elf_aarch64_link_hash_table *htab;
59c108f7
NC		 6714 Elf_Internal_Shdr *symtab_hdr;
6715 struct elf_link_hash_entry **sym_hashes;
cb8af559 6716 struct elf_aarch64_local_symbol *locals;
59c108f7
NC		 6717 const Elf_Internal_Rela *rel, *relend;
6718
0e1862bb 6719 if (bfd_link_relocatable (info))
59c108f7
NC		 6720 return TRUE;
6721
cec5225b 6722 htab = elf_aarch64_hash_table (info);
59c108f7
NC		 6723
6724 if (htab == NULL)
6725 return FALSE;
6726
6727 elf_section_data (sec)->local_dynrel = NULL;
6728
6729 symtab_hdr = &elf_symtab_hdr (abfd);
6730 sym_hashes = elf_sym_hashes (abfd);
6731
cec5225b 6732 locals = elf_aarch64_locals (abfd);
59c108f7
NC		 6733
6734 relend = relocs + sec->reloc_count;
6735 for (rel = relocs; rel < relend; rel++)
6736 {
6737 unsigned long r_symndx;
6738 unsigned int r_type;
6739 struct elf_link_hash_entry *h = NULL;
6740
cec5225b 6741 r_symndx = ELFNN_R_SYM (rel->r_info);
8847944f 6742
59c108f7
NC		 6743 if (r_symndx >= symtab_hdr->sh_info)
6744 {
8847944f 6745
59c108f7
NC		 6746 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6747 while (h->root.type == bfd_link_hash_indirect
6748 || h->root.type == bfd_link_hash_warning)
6749 h = (struct elf_link_hash_entry *) h->root.u.i.link;
59c108f7
NC		 6750 }
6751 else
6752 {
6753 Elf_Internal_Sym *isym;
6754
8847944f 6755 /* A local symbol. */
59c108f7
NC		 6756 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
6757 abfd, r_symndx);
1419bbe5
WN		 6758
6759 /* Check relocation against local STT_GNU_IFUNC symbol. */
6760 if (isym != NULL
6761 && ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
6762 {
6763 h = elfNN_aarch64_get_local_sym_hash (htab, abfd, rel, FALSE);
6764 if (h == NULL)
6765 abort ();
6766 }
6767 }
6768
6769 if (h)
6770 {
6771 struct elf_aarch64_link_hash_entry *eh;
6772 struct elf_dyn_relocs **pp;
6773 struct elf_dyn_relocs *p;
6774
6775 eh = (struct elf_aarch64_link_hash_entry *) h;
6776
6777 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
6778 if (p->sec == sec)
6779 {
6780 /* Everything must go for SEC. */
6781 *pp = p->next;
6782 break;
6783 }
59c108f7
NC		 6784 }
6785
cec5225b 6786 r_type = ELFNN_R_TYPE (rel->r_info);
a6bb11b2 6787 switch (aarch64_tls_transition (abfd,info, r_type, h ,r_symndx))
59c108f7 6788 {
a6bb11b2 6789 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
7bcccb57 6790 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 6791 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
7bcccb57 6792 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
a2e1db00 6793 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
99ad26cb 6794 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
7bcccb57 6795 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
dc8008f5 6796 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 6797 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
f955cccf 6798 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
7bcccb57 6799 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 6800 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
7bcccb57 6801 case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
f955cccf 6802 case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12:
1ada945d 6803 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
0484b454
RL		 6804 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
6805 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
a6bb11b2 6806 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
7bcccb57 6807 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 6808 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
7ba7cfe4 6809 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 6810 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
a6bb11b2 6811 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a6bb11b2 6812 case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
7bcccb57 6813 case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
043bf05a 6814 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
3b957e5b
RL		 6815 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
6816 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
73f925cc 6817 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 6818 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 6819 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
a6bb11b2 6820 if (h != NULL)
59c108f7
NC		 6821 {
6822 if (h->got.refcount > 0)
6823 h->got.refcount -= 1;
1419bbe5
WN		 6824
6825 if (h->type == STT_GNU_IFUNC)
6826 {
6827 if (h->plt.refcount > 0)
6828 h->plt.refcount -= 1;
6829 }
59c108f7 6830 }
cb8af559 6831 else if (locals != NULL)
59c108f7 6832 {
cb8af559
NC		 6833 if (locals[r_symndx].got_refcount > 0)
6834 locals[r_symndx].got_refcount -= 1;
59c108f7
NC		 6835 }
6836 break;
6837
a6bb11b2
YZ		 6838 case BFD_RELOC_AARCH64_CALL26:
6839 case BFD_RELOC_AARCH64_JUMP26:
6840 /* If this is a local symbol then we resolve it
6841 directly without creating a PLT entry. */
59c108f7
NC		 6842 if (h == NULL)
6843 continue;
6844
6845 if (h->plt.refcount > 0)
6846 h->plt.refcount -= 1;
6847 break;
6848
ce336788
JW		 6849 case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
6850 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
6851 case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
614b09ce
JW		 6852 case BFD_RELOC_AARCH64_MOVW_G0_NC:
6853 case BFD_RELOC_AARCH64_MOVW_G1_NC:
6854 case BFD_RELOC_AARCH64_MOVW_G2_NC:
6855 case BFD_RELOC_AARCH64_MOVW_G3:
a6bb11b2 6856 case BFD_RELOC_AARCH64_NN:
0e1862bb 6857 if (h != NULL && bfd_link_executable (info))
59c108f7
NC		 6858 {
6859 if (h->plt.refcount > 0)
6860 h->plt.refcount -= 1;
6861 }
6862 break;
cec5225b 6863
59c108f7
NC		 6864 default:
6865 break;
6866 }
6867 }
6868
a06ea964
NC		 6869 return TRUE;
6870}
6871
6872/* Adjust a symbol defined by a dynamic object and referenced by a
6873 regular object. The current definition is in some section of the
6874 dynamic object, but we're not including those sections. We have to
6875 change the definition to something the rest of the link can
6876 understand. */
6877
6878static bfd_boolean
cec5225b 6879elfNN_aarch64_adjust_dynamic_symbol (struct bfd_link_info *info,
a06ea964
NC		 6880 struct elf_link_hash_entry *h)
6881{
cec5225b 6882 struct elf_aarch64_link_hash_table *htab;
5474d94f 6883 asection *s, *srel;
a06ea964
NC		 6884
6885 /* If this is a function, put it in the procedure linkage table. We
6886 will fill in the contents of the procedure linkage table later,
6887 when we know the address of the .got section. */
1419bbe5 6888 if (h->type == STT_FUNC || h->type == STT_GNU_IFUNC || h->needs_plt)
a06ea964
NC		 6889 {
6890 if (h->plt.refcount <= 0
1419bbe5
WN		 6891 || (h->type != STT_GNU_IFUNC
6892 && (SYMBOL_CALLS_LOCAL (info, h)
6893 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
6894 && h->root.type == bfd_link_hash_undefweak))))
a06ea964
NC		 6895 {
6896 /* This case can occur if we saw a CALL26 reloc in
6897 an input file, but the symbol wasn't referred to
6898 by a dynamic object or all references were
6899 garbage collected. In which case we can end up
6900 resolving. */
6901 h->plt.offset = (bfd_vma) - 1;
6902 h->needs_plt = 0;
6903 }
6904
6905 return TRUE;
6906 }
6907 else
80de0c6d 6908 /* Otherwise, reset to -1. */
a06ea964
NC		 6909 h->plt.offset = (bfd_vma) - 1;
6910
6911
6912 /* If this is a weak symbol, and there is a real definition, the
6913 processor independent code will have arranged for us to see the
6914 real definition first, and we can just use the same value. */
6915 if (h->u.weakdef != NULL)
6916 {
6917 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
6918 || h->u.weakdef->root.type == bfd_link_hash_defweak);
6919 h->root.u.def.section = h->u.weakdef->root.u.def.section;
6920 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6921 if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
6922 h->non_got_ref = h->u.weakdef->non_got_ref;
6923 return TRUE;
6924 }
6925
6926 /* If we are creating a shared library, we must presume that the
6927 only references to the symbol are via the global offset table.
6928 For such cases we need not do anything here; the relocations will
6929 be handled correctly by relocate_section. */
0e1862bb 6930 if (bfd_link_pic (info))
a06ea964
NC		 6931 return TRUE;
6932
6933 /* If there are no references to this symbol that do not use the
6934 GOT, we don't need to generate a copy reloc. */
6935 if (!h->non_got_ref)
6936 return TRUE;
6937
6938 /* If -z nocopyreloc was given, we won't generate them either. */
6939 if (info->nocopyreloc)
6940 {
6941 h->non_got_ref = 0;
6942 return TRUE;
6943 }
6944
6945 /* We must allocate the symbol in our .dynbss section, which will
6946 become part of the .bss section of the executable. There will be
6947 an entry for this symbol in the .dynsym section. The dynamic
6948 object will contain position independent code, so all references
6949 from the dynamic object to this symbol will go through the global
6950 offset table. The dynamic linker will use the .dynsym entry to
6951 determine the address it must put in the global offset table, so
6952 both the dynamic object and the regular object will refer to the
6953 same memory location for the variable. */
6954
cec5225b 6955 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 6956
6957 /* We must generate a R_AARCH64_COPY reloc to tell the dynamic linker
6958 to copy the initial value out of the dynamic object and into the
6959 runtime process image. */
5474d94f
AM		 6960 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
6961 {
6962 s = htab->root.sdynrelro;
6963 srel = htab->root.sreldynrelro;
6964 }
6965 else
6966 {
6967 s = htab->root.sdynbss;
6968 srel = htab->root.srelbss;
6969 }
a06ea964
NC		 6970 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6971 {
5474d94f 6972 srel->size += RELOC_SIZE (htab);
a06ea964
NC		 6973 h->needs_copy = 1;
6974 }
6975
6cabe1ea 6976 return _bfd_elf_adjust_dynamic_copy (info, h, s);
a06ea964
NC		 6977
6978}
6979
6980static bfd_boolean
cec5225b 6981elfNN_aarch64_allocate_local_symbols (bfd *abfd, unsigned number)
a06ea964
NC		 6982{
6983 struct elf_aarch64_local_symbol *locals;
cec5225b 6984 locals = elf_aarch64_locals (abfd);
a06ea964
NC		 6985 if (locals == NULL)
6986 {
6987 locals = (struct elf_aarch64_local_symbol *)
6988 bfd_zalloc (abfd, number * sizeof (struct elf_aarch64_local_symbol));
6989 if (locals == NULL)
6990 return FALSE;
cec5225b 6991 elf_aarch64_locals (abfd) = locals;
a06ea964
NC		 6992 }
6993 return TRUE;
6994}
6995
cc0efaa8
MS		 6996/* Create the .got section to hold the global offset table. */
6997
6998static bfd_boolean
6999aarch64_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
7000{
7001 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
7002 flagword flags;
7003 asection *s;
7004 struct elf_link_hash_entry *h;
7005 struct elf_link_hash_table *htab = elf_hash_table (info);
7006
7007 /* This function may be called more than once. */
ce558b89 7008 if (htab->sgot != NULL)
cc0efaa8
MS		 7009 return TRUE;
7010
7011 flags = bed->dynamic_sec_flags;
7012
7013 s = bfd_make_section_anyway_with_flags (abfd,
7014 (bed->rela_plts_and_copies_p
7015 ? ".rela.got" : ".rel.got"),
7016 (bed->dynamic_sec_flags
7017 | SEC_READONLY));
7018 if (s == NULL
7019 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
7020 return FALSE;
7021 htab->srelgot = s;
7022
7023 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
7024 if (s == NULL
7025 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
7026 return FALSE;
7027 htab->sgot = s;
7028 htab->sgot->size += GOT_ENTRY_SIZE;
7029
7030 if (bed->want_got_sym)
7031 {
7032 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
7033 (or .got.plt) section. We don't do this in the linker script
7034 because we don't want to define the symbol if we are not creating
7035 a global offset table. */
7036 h = _bfd_elf_define_linkage_sym (abfd, info, s,
7037 "_GLOBAL_OFFSET_TABLE_");
7038 elf_hash_table (info)->hgot = h;
7039 if (h == NULL)
7040 return FALSE;
7041 }
7042
7043 if (bed->want_got_plt)
7044 {
7045 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
7046 if (s == NULL
7047 || !bfd_set_section_alignment (abfd, s,
7048 bed->s->log_file_align))
7049 return FALSE;
7050 htab->sgotplt = s;
7051 }
7052
7053 /* The first bit of the global offset table is the header. */
7054 s->size += bed->got_header_size;
7055
7056 return TRUE;
7057}
7058
a06ea964
NC		 7059/* Look through the relocs for a section during the first phase. */
7060
7061static bfd_boolean
cec5225b 7062elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info,
a06ea964
NC		 7063 asection *sec, const Elf_Internal_Rela *relocs)
7064{
7065 Elf_Internal_Shdr *symtab_hdr;
7066 struct elf_link_hash_entry **sym_hashes;
7067 const Elf_Internal_Rela *rel;
7068 const Elf_Internal_Rela *rel_end;
7069 asection *sreloc;
7070
cec5225b 7071 struct elf_aarch64_link_hash_table *htab;
a06ea964 7072
0e1862bb 7073 if (bfd_link_relocatable (info))
a06ea964
NC		 7074 return TRUE;
7075
7076 BFD_ASSERT (is_aarch64_elf (abfd));
7077
cec5225b 7078 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 7079 sreloc = NULL;
7080
7081 symtab_hdr = &elf_symtab_hdr (abfd);
7082 sym_hashes = elf_sym_hashes (abfd);
a06ea964
NC		 7083
7084 rel_end = relocs + sec->reloc_count;
7085 for (rel = relocs; rel < rel_end; rel++)
7086 {
7087 struct elf_link_hash_entry *h;
7088 unsigned long r_symndx;
7089 unsigned int r_type;
a6bb11b2 7090 bfd_reloc_code_real_type bfd_r_type;
1419bbe5 7091 Elf_Internal_Sym *isym;
a06ea964 7092
cec5225b
YZ		 7093 r_symndx = ELFNN_R_SYM (rel->r_info);
7094 r_type = ELFNN_R_TYPE (rel->r_info);
a06ea964
NC		 7095
7096 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
7097 {
695344c0 7098 /* xgettext:c-format */
4eca0228 7099 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
a06ea964
NC		 7100 return FALSE;
7101 }
7102
ed5acf27 7103 if (r_symndx < symtab_hdr->sh_info)
1419bbe5
WN		 7104 {
7105 /* A local symbol. */
7106 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
7107 abfd, r_symndx);
7108 if (isym == NULL)
7109 return FALSE;
7110
7111 /* Check relocation against local STT_GNU_IFUNC symbol. */
7112 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
7113 {
7114 h = elfNN_aarch64_get_local_sym_hash (htab, abfd, rel,
7115 TRUE);
7116 if (h == NULL)
7117 return FALSE;
7118
7119 /* Fake a STT_GNU_IFUNC symbol. */
7120 h->type = STT_GNU_IFUNC;
7121 h->def_regular = 1;
7122 h->ref_regular = 1;
7123 h->forced_local = 1;
7124 h->root.type = bfd_link_hash_defined;
7125 }
7126 else
7127 h = NULL;
7128 }
a06ea964
NC		 7129 else
7130 {
7131 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7132 while (h->root.type == bfd_link_hash_indirect
7133 || h->root.type == bfd_link_hash_warning)
7134 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 7135
7136 /* PR15323, ref flags aren't set for references in the same
7137 object. */
bc4e12de 7138 h->root.non_ir_ref_regular = 1;
a06ea964
NC		 7139 }
7140
7141 /* Could be done earlier, if h were already available. */
a6bb11b2 7142 bfd_r_type = aarch64_tls_transition (abfd, info, r_type, h, r_symndx);
a06ea964 7143
1419bbe5
WN		 7144 if (h != NULL)
7145 {
18f822a0
JW		 7146 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
7147 This shows up in particular in an R_AARCH64_PREL64 in large model
7148 when calculating the pc-relative address to .got section which is
7149 used to initialize the gp register. */
7150 if (h->root.root.string
7151 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
7152 {
7153 if (htab->root.dynobj == NULL)
7154 htab->root.dynobj = abfd;
7155
7156 if (! aarch64_elf_create_got_section (htab->root.dynobj, info))
7157 return FALSE;
7158
7159 BFD_ASSERT (h == htab->root.hgot);
7160 }
7161
1419bbe5
WN		 7162 /* Create the ifunc sections for static executables. If we
7163 never see an indirect function symbol nor we are building
7164 a static executable, those sections will be empty and
7165 won't appear in output. */
7166 switch (bfd_r_type)
7167 {
7168 default:
7169 break;
7170
ce336788
JW		 7171 case BFD_RELOC_AARCH64_ADD_LO12:
7172 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
7173 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
1419bbe5 7174 case BFD_RELOC_AARCH64_CALL26:
ce336788 7175 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
1419bbe5 7176 case BFD_RELOC_AARCH64_JUMP26:
7018c030 7177 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
1419bbe5 7178 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
a2e1db00 7179 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
99ad26cb 7180 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
1419bbe5 7181 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
dc8008f5 7182 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 7183 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
ce336788 7184 case BFD_RELOC_AARCH64_NN:
1419bbe5
WN		 7185 if (htab->root.dynobj == NULL)
7186 htab->root.dynobj = abfd;
7187 if (!_bfd_elf_create_ifunc_sections (htab->root.dynobj, info))
7188 return FALSE;
7189 break;
7190 }
7191
2d0ca824 7192 /* It is referenced by a non-shared object. */
1419bbe5 7193 h->ref_regular = 1;
bc4e12de 7194 h->root.non_ir_ref_regular = 1;
1419bbe5
WN		 7195 }
7196
a6bb11b2 7197 switch (bfd_r_type)
a06ea964 7198 {
a6bb11b2 7199 case BFD_RELOC_AARCH64_NN:
a06ea964
NC		 7200
7201 /* We don't need to handle relocs into sections not going into
7202 the "real" output. */
7203 if ((sec->flags & SEC_ALLOC) == 0)
7204 break;
7205
7206 if (h != NULL)
7207 {
0e1862bb 7208 if (!bfd_link_pic (info))
a06ea964
NC		 7209 h->non_got_ref = 1;
7210
7211 h->plt.refcount += 1;
7212 h->pointer_equality_needed = 1;
7213 }
7214
7215 /* No need to do anything if we're not creating a shared
7216 object. */
0e1862bb 7217 if (! bfd_link_pic (info))
a06ea964
NC		 7218 break;
7219
7220 {
7221 struct elf_dyn_relocs *p;
7222 struct elf_dyn_relocs **head;
7223
7224 /* We must copy these reloc types into the output file.
7225 Create a reloc section in dynobj and make room for
7226 this reloc. */
7227 if (sreloc == NULL)
7228 {
7229 if (htab->root.dynobj == NULL)
7230 htab->root.dynobj = abfd;
7231
7232 sreloc = _bfd_elf_make_dynamic_reloc_section
0608afa7 7233 (sec, htab->root.dynobj, LOG_FILE_ALIGN, abfd, /*rela? */ TRUE);
a06ea964
NC		 7234
7235 if (sreloc == NULL)
7236 return FALSE;
7237 }
7238
7239 /* If this is a global symbol, we count the number of
7240 relocations we need for this symbol. */
7241 if (h != NULL)
7242 {
cec5225b
YZ		 7243 struct elf_aarch64_link_hash_entry *eh;
7244 eh = (struct elf_aarch64_link_hash_entry *) h;
a06ea964
NC		 7245 head = &eh->dyn_relocs;
7246 }
7247 else
7248 {
7249 /* Track dynamic relocs needed for local syms too.
7250 We really need local syms available to do this
7251 easily. Oh well. */
7252
7253 asection *s;
7254 void **vpp;
a06ea964
NC		 7255
7256 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
7257 abfd, r_symndx);
7258 if (isym == NULL)
7259 return FALSE;
7260
7261 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
7262 if (s == NULL)
7263 s = sec;
7264
7265 /* Beware of type punned pointers vs strict aliasing
7266 rules. */
7267 vpp = &(elf_section_data (s)->local_dynrel);
7268 head = (struct elf_dyn_relocs **) vpp;
7269 }
7270
7271 p = *head;
7272 if (p == NULL || p->sec != sec)
7273 {
7274 bfd_size_type amt = sizeof *p;
7275 p = ((struct elf_dyn_relocs *)
7276 bfd_zalloc (htab->root.dynobj, amt));
7277 if (p == NULL)
7278 return FALSE;
7279 p->next = *head;
7280 *head = p;
7281 p->sec = sec;
7282 }
7283
7284 p->count += 1;
7285
7286 }
7287 break;
7288
7289 /* RR: We probably want to keep a consistency check that
7290 there are no dangling GOT_PAGE relocs. */
a6bb11b2 7291 case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
7bcccb57 7292 case BFD_RELOC_AARCH64_GOT_LD_PREL19:
7018c030 7293 case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
7bcccb57 7294 case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
a2e1db00 7295 case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
99ad26cb 7296 case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
7bcccb57 7297 case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
dc8008f5 7298 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
74a1bfe1 7299 case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
f955cccf 7300 case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
7bcccb57 7301 case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
389b8029 7302 case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
7bcccb57 7303 case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
f955cccf 7304 case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12:
1ada945d 7305 case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
0484b454
RL		 7306 case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
7307 case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
a6bb11b2 7308 case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
7bcccb57 7309 case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
3c12b054 7310 case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
7ba7cfe4 7311 case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
94facae3 7312 case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
a6bb11b2 7313 case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
a6bb11b2 7314 case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
7bcccb57 7315 case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
043bf05a 7316 case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
3b957e5b
RL		 7317 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
7318 case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
73f925cc 7319 case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
f69e4920 7320 case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
77a69ff8 7321 case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
b7a944fe
RL		 7322 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
7323 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
7324 case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
a06ea964
NC		 7325 {
7326 unsigned got_type;
7327 unsigned old_got_type;
7328
a6bb11b2 7329 got_type = aarch64_reloc_got_type (bfd_r_type);
a06ea964
NC		 7330
7331 if (h)
7332 {
7333 h->got.refcount += 1;
cec5225b 7334 old_got_type = elf_aarch64_hash_entry (h)->got_type;
a06ea964
NC		 7335 }
7336 else
7337 {
7338 struct elf_aarch64_local_symbol *locals;
7339
cec5225b 7340 if (!elfNN_aarch64_allocate_local_symbols
a06ea964
NC		 7341 (abfd, symtab_hdr->sh_info))
7342 return FALSE;
7343
cec5225b 7344 locals = elf_aarch64_locals (abfd);
a06ea964
NC		 7345 BFD_ASSERT (r_symndx < symtab_hdr->sh_info);
7346 locals[r_symndx].got_refcount += 1;
7347 old_got_type = locals[r_symndx].got_type;
7348 }
7349
7350 /* If a variable is accessed with both general dynamic TLS
7351 methods, two slots may be created. */
7352 if (GOT_TLS_GD_ANY_P (old_got_type) && GOT_TLS_GD_ANY_P (got_type))
7353 got_type |= old_got_type;
7354
7355 /* We will already have issued an error message if there
7356 is a TLS/non-TLS mismatch, based on the symbol type.
7357 So just combine any TLS types needed. */
7358 if (old_got_type != GOT_UNKNOWN && old_got_type != GOT_NORMAL
7359 && got_type != GOT_NORMAL)
7360 got_type |= old_got_type;
7361
7362 /* If the symbol is accessed by both IE and GD methods, we
7363 are able to relax. Turn off the GD flag, without
7364 messing up with any other kind of TLS types that may be
7365 involved. */
7366 if ((got_type & GOT_TLS_IE) && GOT_TLS_GD_ANY_P (got_type))
7367 got_type &= ~ (GOT_TLSDESC_GD | GOT_TLS_GD);
7368
7369 if (old_got_type != got_type)
7370 {
7371 if (h != NULL)
cec5225b 7372 elf_aarch64_hash_entry (h)->got_type = got_type;
a06ea964
NC		 7373 else
7374 {
7375 struct elf_aarch64_local_symbol *locals;
cec5225b 7376 locals = elf_aarch64_locals (abfd);
a06ea964
NC		 7377 BFD_ASSERT (r_symndx < symtab_hdr->sh_info);
7378 locals[r_symndx].got_type = got_type;
7379 }
7380 }
7381
cc0efaa8
MS		 7382 if (htab->root.dynobj == NULL)
7383 htab->root.dynobj = abfd;
7384 if (! aarch64_elf_create_got_section (htab->root.dynobj, info))
7385 return FALSE;
a06ea964
NC		 7386 break;
7387 }
7388
614b09ce
JW		 7389 case BFD_RELOC_AARCH64_MOVW_G0_NC:
7390 case BFD_RELOC_AARCH64_MOVW_G1_NC:
7391 case BFD_RELOC_AARCH64_MOVW_G2_NC:
7392 case BFD_RELOC_AARCH64_MOVW_G3:
0e1862bb 7393 if (bfd_link_pic (info))
614b09ce
JW		 7394 {
7395 int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
4eca0228 7396 _bfd_error_handler
695344c0 7397 /* xgettext:c-format */
614b09ce
JW		 7398 (_("%B: relocation %s against `%s' can not be used when making "
7399 "a shared object; recompile with -fPIC"),
7400 abfd, elfNN_aarch64_howto_table[howto_index].name,
7401 (h) ? h->root.root.string : "a local symbol");
7402 bfd_set_error (bfd_error_bad_value);
7403 return FALSE;
7404 }
1a0670f3 7405 /* Fall through. */
614b09ce 7406
a6bb11b2
YZ		 7407 case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
7408 case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
7409 case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
0e1862bb 7410 if (h != NULL && bfd_link_executable (info))
a06ea964
NC		 7411 {
7412 /* If this reloc is in a read-only section, we might
7413 need a copy reloc. We can't check reliably at this
7414 stage whether the section is read-only, as input
7415 sections have not yet been mapped to output sections.
7416 Tentatively set the flag for now, and correct in
7417 adjust_dynamic_symbol. */
7418 h->non_got_ref = 1;
7419 h->plt.refcount += 1;
7420 h->pointer_equality_needed = 1;
7421 }
7422 /* FIXME:: RR need to handle these in shared libraries
7423 and essentially bomb out as these being non-PIC
7424 relocations in shared libraries. */
7425 break;
7426
a6bb11b2
YZ		 7427 case BFD_RELOC_AARCH64_CALL26:
7428 case BFD_RELOC_AARCH64_JUMP26:
a06ea964
NC		 7429 /* If this is a local symbol then we resolve it
7430 directly without creating a PLT entry. */
7431 if (h == NULL)
7432 continue;
7433
7434 h->needs_plt = 1;
1419bbe5
WN		 7435 if (h->plt.refcount <= 0)
7436 h->plt.refcount = 1;
7437 else
7438 h->plt.refcount += 1;
a06ea964 7439 break;
a6bb11b2
YZ		 7440
7441 default:
7442 break;
a06ea964
NC		 7443 }
7444 }
a6bb11b2 7445
a06ea964
NC		 7446 return TRUE;
7447}
7448
7449/* Treat mapping symbols as special target symbols. */
7450
7451static bfd_boolean
cec5225b 7452elfNN_aarch64_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED,
a06ea964
NC		 7453 asymbol *sym)
7454{
7455 return bfd_is_aarch64_special_symbol_name (sym->name,
7456 BFD_AARCH64_SPECIAL_SYM_TYPE_ANY);
7457}
7458
7459/* This is a copy of elf_find_function () from elf.c except that
7460 AArch64 mapping symbols are ignored when looking for function names. */
7461
7462static bfd_boolean
7463aarch64_elf_find_function (bfd *abfd ATTRIBUTE_UNUSED,
a06ea964 7464 asymbol **symbols,
fb167eb2 7465 asection *section,
a06ea964
NC		 7466 bfd_vma offset,
7467 const char **filename_ptr,
7468 const char **functionname_ptr)
7469{
7470 const char *filename = NULL;
7471 asymbol *func = NULL;
7472 bfd_vma low_func = 0;
7473 asymbol **p;
7474
7475 for (p = symbols; *p != NULL; p++)
7476 {
7477 elf_symbol_type *q;
7478
7479 q = (elf_symbol_type *) * p;
7480
7481 switch (ELF_ST_TYPE (q->internal_elf_sym.st_info))
7482 {
7483 default:
7484 break;
7485 case STT_FILE:
7486 filename = bfd_asymbol_name (&q->symbol);
7487 break;
7488 case STT_FUNC:
7489 case STT_NOTYPE:
7490 /* Skip mapping symbols. */
7491 if ((q->symbol.flags & BSF_LOCAL)
7492 && (bfd_is_aarch64_special_symbol_name
7493 (q->symbol.name, BFD_AARCH64_SPECIAL_SYM_TYPE_ANY)))
7494 continue;
7495 /* Fall through. */
7496 if (bfd_get_section (&q->symbol) == section
7497 && q->symbol.value >= low_func && q->symbol.value <= offset)
7498 {
7499 func = (asymbol *) q;
7500 low_func = q->symbol.value;
7501 }
7502 break;
7503 }
7504 }
7505
7506 if (func == NULL)
7507 return FALSE;
7508
7509 if (filename_ptr)
7510 *filename_ptr = filename;
7511 if (functionname_ptr)
7512 *functionname_ptr = bfd_asymbol_name (func);
7513
7514 return TRUE;
7515}
7516
7517
7518/* Find the nearest line to a particular section and offset, for error
7519 reporting. This code is a duplicate of the code in elf.c, except
7520 that it uses aarch64_elf_find_function. */
7521
7522static bfd_boolean
cec5225b 7523elfNN_aarch64_find_nearest_line (bfd *abfd,
a06ea964 7524 asymbol **symbols,
fb167eb2 7525 asection *section,
a06ea964
NC		 7526 bfd_vma offset,
7527 const char **filename_ptr,
7528 const char **functionname_ptr,
fb167eb2
AM		 7529 unsigned int *line_ptr,
7530 unsigned int *discriminator_ptr)
a06ea964
NC		 7531{
7532 bfd_boolean found = FALSE;
7533
fb167eb2 7534 if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
a06ea964 7535 filename_ptr, functionname_ptr,
fb167eb2
AM		 7536 line_ptr, discriminator_ptr,
7537 dwarf_debug_sections, 0,
a06ea964
NC		 7538 &elf_tdata (abfd)->dwarf2_find_line_info))
7539 {
7540 if (!*functionname_ptr)
fb167eb2 7541 aarch64_elf_find_function (abfd, symbols, section, offset,
a06ea964
NC		 7542 *filename_ptr ? NULL : filename_ptr,
7543 functionname_ptr);
7544
7545 return TRUE;
7546 }
7547
fb167eb2
AM		 7548 /* Skip _bfd_dwarf1_find_nearest_line since no known AArch64
7549 toolchain uses DWARF1. */
7550
a06ea964
NC		 7551 if (!_bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
7552 &found, filename_ptr,
7553 functionname_ptr, line_ptr,
7554 &elf_tdata (abfd)->line_info))
7555 return FALSE;
7556
7557 if (found && (*functionname_ptr || *line_ptr))
7558 return TRUE;
7559
7560 if (symbols == NULL)
7561 return FALSE;
7562
fb167eb2 7563 if (!aarch64_elf_find_function (abfd, symbols, section, offset,
a06ea964
NC		 7564 filename_ptr, functionname_ptr))
7565 return FALSE;
7566
7567 *line_ptr = 0;
7568 return TRUE;
7569}
7570
7571static bfd_boolean
cec5225b 7572elfNN_aarch64_find_inliner_info (bfd *abfd,
a06ea964
NC		 7573 const char **filename_ptr,
7574 const char **functionname_ptr,
7575 unsigned int *line_ptr)
7576{
7577 bfd_boolean found;
7578 found = _bfd_dwarf2_find_inliner_info
7579 (abfd, filename_ptr,
7580 functionname_ptr, line_ptr, &elf_tdata (abfd)->dwarf2_find_line_info);
7581 return found;
7582}
7583
7584
7585static void
cec5225b 7586elfNN_aarch64_post_process_headers (bfd *abfd,
1419bbe5 7587 struct bfd_link_info *link_info)
a06ea964
NC		 7588{
7589 Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */
7590
7591 i_ehdrp = elf_elfheader (abfd);
a06ea964 7592 i_ehdrp->e_ident[EI_ABIVERSION] = AARCH64_ELF_ABI_VERSION;
1419bbe5 7593
78245035 7594 _bfd_elf_post_process_headers (abfd, link_info);
a06ea964
NC		 7595}
7596
7597static enum elf_reloc_type_class
cec5225b 7598elfNN_aarch64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
7e612e98
AM		 7599 const asection *rel_sec ATTRIBUTE_UNUSED,
7600 const Elf_Internal_Rela *rela)
a06ea964 7601{
cec5225b 7602 switch ((int) ELFNN_R_TYPE (rela->r_info))
a06ea964 7603 {
a6bb11b2 7604 case AARCH64_R (RELATIVE):
a06ea964 7605 return reloc_class_relative;
a6bb11b2 7606 case AARCH64_R (JUMP_SLOT):
a06ea964 7607 return reloc_class_plt;
a6bb11b2 7608 case AARCH64_R (COPY):
a06ea964
NC		 7609 return reloc_class_copy;
7610 default:
7611 return reloc_class_normal;
7612 }
7613}
7614
a06ea964
NC		 7615/* Handle an AArch64 specific section when reading an object file. This is
7616 called when bfd_section_from_shdr finds a section with an unknown
7617 type. */
7618
7619static bfd_boolean
cec5225b 7620elfNN_aarch64_section_from_shdr (bfd *abfd,
a06ea964
NC		 7621 Elf_Internal_Shdr *hdr,
7622 const char *name, int shindex)
7623{
7624 /* There ought to be a place to keep ELF backend specific flags, but
7625 at the moment there isn't one. We just keep track of the
7626 sections by their name, instead. Fortunately, the ABI gives
7627 names for all the AArch64 specific sections, so we will probably get
7628 away with this. */
7629 switch (hdr->sh_type)
7630 {
7631 case SHT_AARCH64_ATTRIBUTES:
7632 break;
7633
7634 default:
7635 return FALSE;
7636 }
7637
7638 if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
7639 return FALSE;
7640
7641 return TRUE;
7642}
7643
7644/* A structure used to record a list of sections, independently
7645 of the next and prev fields in the asection structure. */
7646typedef struct section_list
7647{
7648 asection *sec;
7649 struct section_list *next;
7650 struct section_list *prev;
7651}
7652section_list;
7653
7654/* Unfortunately we need to keep a list of sections for which
7655 an _aarch64_elf_section_data structure has been allocated. This
cec5225b 7656 is because it is possible for functions like elfNN_aarch64_write_section
a06ea964
NC		 7657 to be called on a section which has had an elf_data_structure
7658 allocated for it (and so the used_by_bfd field is valid) but
7659 for which the AArch64 extended version of this structure - the
7660 _aarch64_elf_section_data structure - has not been allocated. */
7661static section_list *sections_with_aarch64_elf_section_data = NULL;
7662
7663static void
7664record_section_with_aarch64_elf_section_data (asection *sec)
7665{
7666 struct section_list *entry;
7667
7668 entry = bfd_malloc (sizeof (*entry));
7669 if (entry == NULL)
7670 return;
7671 entry->sec = sec;
7672 entry->next = sections_with_aarch64_elf_section_data;
7673 entry->prev = NULL;
7674 if (entry->next != NULL)
7675 entry->next->prev = entry;
7676 sections_with_aarch64_elf_section_data = entry;
7677}
7678
7679static struct section_list *
7680find_aarch64_elf_section_entry (asection *sec)
7681{
7682 struct section_list *entry;
7683 static struct section_list *last_entry = NULL;
7684
7685 /* This is a short cut for the typical case where the sections are added
7686 to the sections_with_aarch64_elf_section_data list in forward order and
7687 then looked up here in backwards order. This makes a real difference
7688 to the ld-srec/sec64k.exp linker test. */
7689 entry = sections_with_aarch64_elf_section_data;
7690 if (last_entry != NULL)
7691 {
7692 if (last_entry->sec == sec)
7693 entry = last_entry;
7694 else if (last_entry->next != NULL && last_entry->next->sec == sec)
7695 entry = last_entry->next;
7696 }
7697
7698 for (; entry; entry = entry->next)
7699 if (entry->sec == sec)
7700 break;
7701
7702 if (entry)
7703 /* Record the entry prior to this one - it is the entry we are
7704 most likely to want to locate next time. Also this way if we
7705 have been called from
7706 unrecord_section_with_aarch64_elf_section_data () we will not
7707 be caching a pointer that is about to be freed. */
7708 last_entry = entry->prev;
7709
7710 return entry;
7711}
7712
7713static void
7714unrecord_section_with_aarch64_elf_section_data (asection *sec)
7715{
7716 struct section_list *entry;
7717
7718 entry = find_aarch64_elf_section_entry (sec);
7719
7720 if (entry)
7721 {
7722 if (entry->prev != NULL)
7723 entry->prev->next = entry->next;
7724 if (entry->next != NULL)
7725 entry->next->prev = entry->prev;
7726 if (entry == sections_with_aarch64_elf_section_data)
7727 sections_with_aarch64_elf_section_data = entry->next;
7728 free (entry);
7729 }
7730}
7731
7732
7733typedef struct
7734{
7735 void *finfo;
7736 struct bfd_link_info *info;
7737 asection *sec;
7738 int sec_shndx;
7739 int (*func) (void *, const char *, Elf_Internal_Sym *,
7740 asection *, struct elf_link_hash_entry *);
7741} output_arch_syminfo;
7742
7743enum map_symbol_type
7744{
7745 AARCH64_MAP_INSN,
7746 AARCH64_MAP_DATA
7747};
7748
7749
7750/* Output a single mapping symbol. */
7751
7752static bfd_boolean
cec5225b 7753elfNN_aarch64_output_map_sym (output_arch_syminfo *osi,
a06ea964
NC		 7754 enum map_symbol_type type, bfd_vma offset)
7755{
7756 static const char *names[2] = { "$x", "$d" };
7757 Elf_Internal_Sym sym;
7758
7759 sym.st_value = (osi->sec->output_section->vma
7760 + osi->sec->output_offset + offset);
7761 sym.st_size = 0;
7762 sym.st_other = 0;
7763 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE);
7764 sym.st_shndx = osi->sec_shndx;
7765 return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1;
7766}
7767
a06ea964
NC		 7768/* Output a single local symbol for a generated stub. */
7769
7770static bfd_boolean
cec5225b 7771elfNN_aarch64_output_stub_sym (output_arch_syminfo *osi, const char *name,
a06ea964
NC		 7772 bfd_vma offset, bfd_vma size)
7773{
7774 Elf_Internal_Sym sym;
7775
7776 sym.st_value = (osi->sec->output_section->vma
7777 + osi->sec->output_offset + offset);
7778 sym.st_size = size;
7779 sym.st_other = 0;
7780 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FUNC);
7781 sym.st_shndx = osi->sec_shndx;
7782 return osi->func (osi->finfo, name, &sym, osi->sec, NULL) == 1;
7783}
7784
7785static bfd_boolean
7786aarch64_map_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
7787{
cec5225b 7788 struct elf_aarch64_stub_hash_entry *stub_entry;
a06ea964
NC		 7789 asection *stub_sec;
7790 bfd_vma addr;
7791 char *stub_name;
7792 output_arch_syminfo *osi;
7793
7794 /* Massage our args to the form they really have. */
cec5225b 7795 stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry;
a06ea964
NC		 7796 osi = (output_arch_syminfo *) in_arg;
7797
7798 stub_sec = stub_entry->stub_sec;
7799
7800 /* Ensure this stub is attached to the current section being
7801 processed. */
7802 if (stub_sec != osi->sec)
7803 return TRUE;
7804
7805 addr = (bfd_vma) stub_entry->stub_offset;
7806
7807 stub_name = stub_entry->output_name;
7808
7809 switch (stub_entry->stub_type)
7810 {
7811 case aarch64_stub_adrp_branch:
cec5225b 7812 if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr,
a06ea964
NC		 7813 sizeof (aarch64_adrp_branch_stub)))
7814 return FALSE;
cec5225b 7815 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
a06ea964
NC		 7816 return FALSE;
7817 break;
7818 case aarch64_stub_long_branch:
cec5225b 7819 if (!elfNN_aarch64_output_stub_sym
a06ea964
NC		 7820 (osi, stub_name, addr, sizeof (aarch64_long_branch_stub)))
7821 return FALSE;
cec5225b 7822 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
a06ea964 7823 return FALSE;
cec5225b 7824 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_DATA, addr + 16))
a06ea964
NC		 7825 return FALSE;
7826 break;
68fcca92
JW		 7827 case aarch64_stub_erratum_835769_veneer:
7828 if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr,
7829 sizeof (aarch64_erratum_835769_stub)))
7830 return FALSE;
7831 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
7832 return FALSE;
7833 break;
4106101c
MS		 7834 case aarch64_stub_erratum_843419_veneer:
7835 if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr,
7836 sizeof (aarch64_erratum_843419_stub)))
7837 return FALSE;
7838 if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
7839 return FALSE;
7840 break;
7841
a06ea964 7842 default:
8e2fe09f 7843 abort ();
a06ea964
NC		 7844 }
7845
7846 return TRUE;
7847}
7848
7849/* Output mapping symbols for linker generated sections. */
7850
7851static bfd_boolean
cec5225b 7852elfNN_aarch64_output_arch_local_syms (bfd *output_bfd,
a06ea964
NC		 7853 struct bfd_link_info *info,
7854 void *finfo,
7855 int (*func) (void *, const char *,
7856 Elf_Internal_Sym *,
7857 asection *,
7858 struct elf_link_hash_entry
7859 *))
7860{
7861 output_arch_syminfo osi;
cec5225b 7862 struct elf_aarch64_link_hash_table *htab;
a06ea964 7863
cec5225b 7864 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 7865
7866 osi.finfo = finfo;
7867 osi.info = info;
7868 osi.func = func;
7869
7870 /* Long calls stubs. */
7871 if (htab->stub_bfd && htab->stub_bfd->sections)
7872 {
7873 asection *stub_sec;
7874
7875 for (stub_sec = htab->stub_bfd->sections;
7876 stub_sec != NULL; stub_sec = stub_sec->next)
7877 {
7878 /* Ignore non-stub sections. */
7879 if (!strstr (stub_sec->name, STUB_SUFFIX))
7880 continue;
7881
7882 osi.sec = stub_sec;
7883
7884 osi.sec_shndx = _bfd_elf_section_from_bfd_section
7885 (output_bfd, osi.sec->output_section);
7886
61865519
MS		 7887 /* The first instruction in a stub is always a branch. */
7888 if (!elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0))
7889 return FALSE;
7890
a06ea964
NC		 7891 bfd_hash_traverse (&htab->stub_hash_table, aarch64_map_one_stub,
7892 &osi);
7893 }
7894 }
7895
7896 /* Finally, output mapping symbols for the PLT. */
7897 if (!htab->root.splt || htab->root.splt->size == 0)
7898 return TRUE;
7899
a06ea964
NC		 7900 osi.sec_shndx = _bfd_elf_section_from_bfd_section
7901 (output_bfd, htab->root.splt->output_section);
7902 osi.sec = htab->root.splt;
7903
73524045 7904 elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0);
a06ea964
NC		 7905
7906 return TRUE;
7907
7908}
7909
7910/* Allocate target specific section data. */
7911
7912static bfd_boolean
cec5225b 7913elfNN_aarch64_new_section_hook (bfd *abfd, asection *sec)
a06ea964
NC		 7914{
7915 if (!sec->used_by_bfd)
7916 {
7917 _aarch64_elf_section_data *sdata;
7918 bfd_size_type amt = sizeof (*sdata);
7919
7920 sdata = bfd_zalloc (abfd, amt);
7921 if (sdata == NULL)
7922 return FALSE;
7923 sec->used_by_bfd = sdata;
7924 }
7925
7926 record_section_with_aarch64_elf_section_data (sec);
7927
7928 return _bfd_elf_new_section_hook (abfd, sec);
7929}
7930
7931
7932static void
7933unrecord_section_via_map_over_sections (bfd *abfd ATTRIBUTE_UNUSED,
7934 asection *sec,
7935 void *ignore ATTRIBUTE_UNUSED)
7936{
7937 unrecord_section_with_aarch64_elf_section_data (sec);
7938}
7939
7940static bfd_boolean
cec5225b 7941elfNN_aarch64_close_and_cleanup (bfd *abfd)
a06ea964
NC		 7942{
7943 if (abfd->sections)
7944 bfd_map_over_sections (abfd,
7945 unrecord_section_via_map_over_sections, NULL);
7946
7947 return _bfd_elf_close_and_cleanup (abfd);
7948}
7949
7950static bfd_boolean
cec5225b 7951elfNN_aarch64_bfd_free_cached_info (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_free_cached_info (abfd);
7958}
7959
a06ea964
NC		 7960/* Create dynamic sections. This is different from the ARM backend in that
7961 the got, plt, gotplt and their relocation sections are all created in the
7962 standard part of the bfd elf backend. */
7963
7964static bfd_boolean
cec5225b 7965elfNN_aarch64_create_dynamic_sections (bfd *dynobj,
a06ea964
NC		 7966 struct bfd_link_info *info)
7967{
cc0efaa8
MS		 7968 /* We need to create .got section. */
7969 if (!aarch64_elf_create_got_section (dynobj, info))
7970 return FALSE;
a06ea964 7971
9d19e4fd 7972 return _bfd_elf_create_dynamic_sections (dynobj, info);
a06ea964
NC		 7973}
7974
7975
7976/* Allocate space in .plt, .got and associated reloc sections for
7977 dynamic relocs. */
7978
7979static bfd_boolean
cec5225b 7980elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
a06ea964
NC		 7981{
7982 struct bfd_link_info *info;
cec5225b
YZ		 7983 struct elf_aarch64_link_hash_table *htab;
7984 struct elf_aarch64_link_hash_entry *eh;
a06ea964
NC		 7985 struct elf_dyn_relocs *p;
7986
7987 /* An example of a bfd_link_hash_indirect symbol is versioned
7988 symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect)
7989 -> __gxx_personality_v0(bfd_link_hash_defined)
7990
7991 There is no need to process bfd_link_hash_indirect symbols here
7992 because we will also be presented with the concrete instance of
cec5225b 7993 the symbol and elfNN_aarch64_copy_indirect_symbol () will have been
a06ea964 7994 called to copy all relevant data from the generic to the concrete
2d0ca824 7995 symbol instance. */
a06ea964
NC		 7996 if (h->root.type == bfd_link_hash_indirect)
7997 return TRUE;
7998
7999 if (h->root.type == bfd_link_hash_warning)
8000 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8001
8002 info = (struct bfd_link_info *) inf;
cec5225b 8003 htab = elf_aarch64_hash_table (info);
a06ea964 8004
1419bbe5
WN		 8005 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
8006 here if it is defined and referenced in a non-shared object. */
8007 if (h->type == STT_GNU_IFUNC
8008 && h->def_regular)
8009 return TRUE;
8010 else if (htab->root.dynamic_sections_created && h->plt.refcount > 0)
a06ea964
NC		 8011 {
8012 /* Make sure this symbol is output as a dynamic symbol.
8013 Undefined weak syms won't yet be marked as dynamic. */
8014 if (h->dynindx == -1 && !h->forced_local)
8015 {
8016 if (!bfd_elf_link_record_dynamic_symbol (info, h))
8017 return FALSE;
8018 }
8019
0e1862bb 8020 if (bfd_link_pic (info) || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
a06ea964
NC		 8021 {
8022 asection *s = htab->root.splt;
8023
8024 /* If this is the first .plt entry, make room for the special
8025 first entry. */
8026 if (s->size == 0)
8027 s->size += htab->plt_header_size;
8028
8029 h->plt.offset = s->size;
8030
8031 /* If this symbol is not defined in a regular file, and we are
8032 not generating a shared library, then set the symbol to this
8033 location in the .plt. This is required to make function
8034 pointers compare as equal between the normal executable and
8035 the shared library. */
0e1862bb 8036 if (!bfd_link_pic (info) && !h->def_regular)
a06ea964
NC		 8037 {
8038 h->root.u.def.section = s;
8039 h->root.u.def.value = h->plt.offset;
8040 }
8041
8042 /* Make room for this entry. For now we only create the
8043 small model PLT entries. We later need to find a way
8044 of relaxing into these from the large model PLT entries. */
8045 s->size += PLT_SMALL_ENTRY_SIZE;
8046
8047 /* We also need to make an entry in the .got.plt section, which
8048 will be placed in the .got section by the linker script. */
8049 htab->root.sgotplt->size += GOT_ENTRY_SIZE;
8050
8051 /* We also need to make an entry in the .rela.plt section. */
8052 htab->root.srelplt->size += RELOC_SIZE (htab);
8053
8054 /* We need to ensure that all GOT entries that serve the PLT
8055 are consecutive with the special GOT slots [0] [1] and
8056 [2]. Any addtional relocations, such as
8057 R_AARCH64_TLSDESC, must be placed after the PLT related
8058 entries. We abuse the reloc_count such that during
8059 sizing we adjust reloc_count to indicate the number of
8060 PLT related reserved entries. In subsequent phases when
8061 filling in the contents of the reloc entries, PLT related
8062 entries are placed by computing their PLT index (0
8063 .. reloc_count). While other none PLT relocs are placed
8064 at the slot indicated by reloc_count and reloc_count is
8065 updated. */
8066
8067 htab->root.srelplt->reloc_count++;
8068 }
8069 else
8070 {
8071 h->plt.offset = (bfd_vma) - 1;
8072 h->needs_plt = 0;
8073 }
8074 }
8075 else
8076 {
8077 h->plt.offset = (bfd_vma) - 1;
8078 h->needs_plt = 0;
8079 }
8080
cec5225b 8081 eh = (struct elf_aarch64_link_hash_entry *) h;
a06ea964
NC		 8082 eh->tlsdesc_got_jump_table_offset = (bfd_vma) - 1;
8083
8084 if (h->got.refcount > 0)
8085 {
8086 bfd_boolean dyn;
cec5225b 8087 unsigned got_type = elf_aarch64_hash_entry (h)->got_type;
a06ea964
NC		 8088
8089 h->got.offset = (bfd_vma) - 1;
8090
8091 dyn = htab->root.dynamic_sections_created;
8092
8093 /* Make sure this symbol is output as a dynamic symbol.
8094 Undefined weak syms won't yet be marked as dynamic. */
8095 if (dyn && h->dynindx == -1 && !h->forced_local)
8096 {
8097 if (!bfd_elf_link_record_dynamic_symbol (info, h))
8098 return FALSE;
8099 }
8100
8101 if (got_type == GOT_UNKNOWN)
8102 {
8103 }
8104 else if (got_type == GOT_NORMAL)
8105 {
8106 h->got.offset = htab->root.sgot->size;
8107 htab->root.sgot->size += GOT_ENTRY_SIZE;
8108 if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8109 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 8110 && (bfd_link_pic (info)
a06ea964
NC		 8111 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
8112 {
8113 htab->root.srelgot->size += RELOC_SIZE (htab);
8114 }
8115 }
8116 else
8117 {
8118 int indx;
8119 if (got_type & GOT_TLSDESC_GD)
8120 {
8121 eh->tlsdesc_got_jump_table_offset =
8122 (htab->root.sgotplt->size
8123 - aarch64_compute_jump_table_size (htab));
8124 htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2;
8125 h->got.offset = (bfd_vma) - 2;
8126 }
8127
8128 if (got_type & GOT_TLS_GD)
8129 {
8130 h->got.offset = htab->root.sgot->size;
8131 htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
8132 }
8133
8134 if (got_type & GOT_TLS_IE)
8135 {
8136 h->got.offset = htab->root.sgot->size;
8137 htab->root.sgot->size += GOT_ENTRY_SIZE;
8138 }
8139
8140 indx = h && h->dynindx != -1 ? h->dynindx : 0;
8141 if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8142 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 8143 && (bfd_link_pic (info)
a06ea964
NC		 8144 || indx != 0
8145 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
8146 {
8147 if (got_type & GOT_TLSDESC_GD)
8148 {
8149 htab->root.srelplt->size += RELOC_SIZE (htab);
8150 /* Note reloc_count not incremented here! We have
8151 already adjusted reloc_count for this relocation
8152 type. */
8153
8154 /* TLSDESC PLT is now needed, but not yet determined. */
8155 htab->tlsdesc_plt = (bfd_vma) - 1;
8156 }
8157
8158 if (got_type & GOT_TLS_GD)
8159 htab->root.srelgot->size += RELOC_SIZE (htab) * 2;
8160
8161 if (got_type & GOT_TLS_IE)
8162 htab->root.srelgot->size += RELOC_SIZE (htab);
8163 }
8164 }
8165 }
8166 else
8167 {
8168 h->got.offset = (bfd_vma) - 1;
8169 }
8170
8171 if (eh->dyn_relocs == NULL)
8172 return TRUE;
8173
8174 /* In the shared -Bsymbolic case, discard space allocated for
8175 dynamic pc-relative relocs against symbols which turn out to be
8176 defined in regular objects. For the normal shared case, discard
8177 space for pc-relative relocs that have become local due to symbol
8178 visibility changes. */
8179
0e1862bb 8180 if (bfd_link_pic (info))
a06ea964
NC		 8181 {
8182 /* Relocs that use pc_count are those that appear on a call
8183 insn, or certain REL relocs that can generated via assembly.
8184 We want calls to protected symbols to resolve directly to the
8185 function rather than going via the plt. If people want
8186 function pointer comparisons to work as expected then they
8187 should avoid writing weird assembly. */
8188 if (SYMBOL_CALLS_LOCAL (info, h))
8189 {
8190 struct elf_dyn_relocs **pp;
8191
8192 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
8193 {
8194 p->count -= p->pc_count;
8195 p->pc_count = 0;
8196 if (p->count == 0)
8197 *pp = p->next;
8198 else
8199 pp = &p->next;
8200 }
8201 }
8202
8203 /* Also discard relocs on undefined weak syms with non-default
8204 visibility. */
8205 if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak)
8206 {
8207 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
8208 eh->dyn_relocs = NULL;
8209
8210 /* Make sure undefined weak symbols are output as a dynamic
8211 symbol in PIEs. */
8212 else if (h->dynindx == -1
8213 && !h->forced_local
8214 && !bfd_elf_link_record_dynamic_symbol (info, h))
8215 return FALSE;
8216 }
8217
8218 }
8219 else if (ELIMINATE_COPY_RELOCS)
8220 {
8221 /* For the non-shared case, discard space for relocs against
8222 symbols which turn out to need copy relocs or are not
8223 dynamic. */
8224
8225 if (!h->non_got_ref
8226 && ((h->def_dynamic
8227 && !h->def_regular)
8228 || (htab->root.dynamic_sections_created
8229 && (h->root.type == bfd_link_hash_undefweak
8230 || h->root.type == bfd_link_hash_undefined))))
8231 {
8232 /* Make sure this symbol is output as a dynamic symbol.
8233 Undefined weak syms won't yet be marked as dynamic. */
8234 if (h->dynindx == -1
8235 && !h->forced_local
8236 && !bfd_elf_link_record_dynamic_symbol (info, h))
8237 return FALSE;
8238
8239 /* If that succeeded, we know we'll be keeping all the
8240 relocs. */
8241 if (h->dynindx != -1)
8242 goto keep;
8243 }
8244
8245 eh->dyn_relocs = NULL;
8246
8247 keep:;
8248 }
8249
8250 /* Finally, allocate space. */
8251 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8252 {
8253 asection *sreloc;
8254
8255 sreloc = elf_section_data (p->sec)->sreloc;
8256
8257 BFD_ASSERT (sreloc != NULL);
8258
8259 sreloc->size += p->count * RELOC_SIZE (htab);
8260 }
8261
8262 return TRUE;
8263}
8264
1419bbe5
WN		 8265/* Allocate space in .plt, .got and associated reloc sections for
8266 ifunc dynamic relocs. */
8267
8268static bfd_boolean
8269elfNN_aarch64_allocate_ifunc_dynrelocs (struct elf_link_hash_entry *h,
8270 void *inf)
8271{
8272 struct bfd_link_info *info;
8273 struct elf_aarch64_link_hash_table *htab;
8274 struct elf_aarch64_link_hash_entry *eh;
8275
8276 /* An example of a bfd_link_hash_indirect symbol is versioned
8277 symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect)
8278 -> __gxx_personality_v0(bfd_link_hash_defined)
8279
8280 There is no need to process bfd_link_hash_indirect symbols here
8281 because we will also be presented with the concrete instance of
8282 the symbol and elfNN_aarch64_copy_indirect_symbol () will have been
8283 called to copy all relevant data from the generic to the concrete
2d0ca824 8284 symbol instance. */
1419bbe5
WN		 8285 if (h->root.type == bfd_link_hash_indirect)
8286 return TRUE;
8287
8288 if (h->root.type == bfd_link_hash_warning)
8289 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8290
8291 info = (struct bfd_link_info *) inf;
8292 htab = elf_aarch64_hash_table (info);
8293
8294 eh = (struct elf_aarch64_link_hash_entry *) h;
8295
8296 /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
8297 here if it is defined and referenced in a non-shared object. */
8298 if (h->type == STT_GNU_IFUNC
8299 && h->def_regular)
8300 return _bfd_elf_allocate_ifunc_dyn_relocs (info, h,
8301 &eh->dyn_relocs,
2df3368d 8302 NULL,
1419bbe5
WN		 8303 htab->plt_entry_size,
8304 htab->plt_header_size,
233cc9c1
L		 8305 GOT_ENTRY_SIZE,
8306 FALSE);
1419bbe5
WN		 8307 return TRUE;
8308}
8309
8310/* Allocate space in .plt, .got and associated reloc sections for
8311 local dynamic relocs. */
8312
8313static bfd_boolean
8314elfNN_aarch64_allocate_local_dynrelocs (void **slot, void *inf)
8315{
8316 struct elf_link_hash_entry *h
8317 = (struct elf_link_hash_entry *) *slot;
8318
8319 if (h->type != STT_GNU_IFUNC
8320 || !h->def_regular
8321 || !h->ref_regular
8322 || !h->forced_local
8323 || h->root.type != bfd_link_hash_defined)
8324 abort ();
8325
8326 return elfNN_aarch64_allocate_dynrelocs (h, inf);
8327}
8328
8329/* Allocate space in .plt, .got and associated reloc sections for
8330 local ifunc dynamic relocs. */
8331
8332static bfd_boolean
8333elfNN_aarch64_allocate_local_ifunc_dynrelocs (void **slot, void *inf)
8334{
8335 struct elf_link_hash_entry *h
8336 = (struct elf_link_hash_entry *) *slot;
8337
8338 if (h->type != STT_GNU_IFUNC
8339 || !h->def_regular
8340 || !h->ref_regular
8341 || !h->forced_local
8342 || h->root.type != bfd_link_hash_defined)
8343 abort ();
8344
8345 return elfNN_aarch64_allocate_ifunc_dynrelocs (h, inf);
8346}
a06ea964 8347
c2170589
JW		 8348/* Find any dynamic relocs that apply to read-only sections. */
8349
8350static bfd_boolean
8351aarch64_readonly_dynrelocs (struct elf_link_hash_entry * h, void * inf)
8352{
8353 struct elf_aarch64_link_hash_entry * eh;
8354 struct elf_dyn_relocs * p;
8355
8356 eh = (struct elf_aarch64_link_hash_entry *) h;
8357 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8358 {
8359 asection *s = p->sec;
8360
8361 if (s != NULL && (s->flags & SEC_READONLY) != 0)
8362 {
8363 struct bfd_link_info *info = (struct bfd_link_info *) inf;
8364
8365 info->flags |= DF_TEXTREL;
8366
8367 /* Not an error, just cut short the traversal. */
8368 return FALSE;
8369 }
8370 }
8371 return TRUE;
8372}
8373
a06ea964
NC		 8374/* This is the most important function of all . Innocuosly named
8375 though ! */
2d0ca824 8376
a06ea964 8377static bfd_boolean
cec5225b 8378elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
a06ea964
NC		 8379 struct bfd_link_info *info)
8380{
cec5225b 8381 struct elf_aarch64_link_hash_table *htab;
a06ea964
NC		 8382 bfd *dynobj;
8383 asection *s;
8384 bfd_boolean relocs;
8385 bfd *ibfd;
8386
cec5225b 8387 htab = elf_aarch64_hash_table ((info));
a06ea964
NC		 8388 dynobj = htab->root.dynobj;
8389
8390 BFD_ASSERT (dynobj != NULL);
8391
8392 if (htab->root.dynamic_sections_created)
8393 {
9b8b325a 8394 if (bfd_link_executable (info) && !info->nointerp)
a06ea964
NC		 8395 {
8396 s = bfd_get_linker_section (dynobj, ".interp");
8397 if (s == NULL)
8398 abort ();
8399 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
8400 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
8401 }
8402 }
8403
8404 /* Set up .got offsets for local syms, and space for local dynamic
8405 relocs. */
c72f2fb2 8406 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
a06ea964
NC		 8407 {
8408 struct elf_aarch64_local_symbol *locals = NULL;
8409 Elf_Internal_Shdr *symtab_hdr;
8410 asection *srel;
8411 unsigned int i;
8412
8413 if (!is_aarch64_elf (ibfd))
8414 continue;
8415
8416 for (s = ibfd->sections; s != NULL; s = s->next)
8417 {
8418 struct elf_dyn_relocs *p;
8419
8420 for (p = (struct elf_dyn_relocs *)
8421 (elf_section_data (s)->local_dynrel); p != NULL; p = p->next)
8422 {
8423 if (!bfd_is_abs_section (p->sec)
8424 && bfd_is_abs_section (p->sec->output_section))
8425 {
8426 /* Input section has been discarded, either because
8427 it is a copy of a linkonce section or due to
8428 linker script /DISCARD/, so we'll be discarding
8429 the relocs too. */
8430 }
8431 else if (p->count != 0)
8432 {
8433 srel = elf_section_data (p->sec)->sreloc;
8434 srel->size += p->count * RELOC_SIZE (htab);
8435 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
8436 info->flags |= DF_TEXTREL;
8437 }
8438 }
8439 }
8440
cec5225b 8441 locals = elf_aarch64_locals (ibfd);
a06ea964
NC		 8442 if (!locals)
8443 continue;
8444
8445 symtab_hdr = &elf_symtab_hdr (ibfd);
8446 srel = htab->root.srelgot;
8447 for (i = 0; i < symtab_hdr->sh_info; i++)
8448 {
8449 locals[i].got_offset = (bfd_vma) - 1;
8450 locals[i].tlsdesc_got_jump_table_offset = (bfd_vma) - 1;
8451 if (locals[i].got_refcount > 0)
8452 {
8453 unsigned got_type = locals[i].got_type;
8454 if (got_type & GOT_TLSDESC_GD)
8455 {
8456 locals[i].tlsdesc_got_jump_table_offset =
8457 (htab->root.sgotplt->size
8458 - aarch64_compute_jump_table_size (htab));
8459 htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2;
8460 locals[i].got_offset = (bfd_vma) - 2;
8461 }
8462
8463 if (got_type & GOT_TLS_GD)
8464 {
8465 locals[i].got_offset = htab->root.sgot->size;
8466 htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
8467 }
8468
b53b1bed
JW		 8469 if (got_type & GOT_TLS_IE
8470 || got_type & GOT_NORMAL)
a06ea964
NC		 8471 {
8472 locals[i].got_offset = htab->root.sgot->size;
8473 htab->root.sgot->size += GOT_ENTRY_SIZE;
8474 }
8475
8476 if (got_type == GOT_UNKNOWN)
8477 {
8478 }
8479
0e1862bb 8480 if (bfd_link_pic (info))
a06ea964
NC		 8481 {
8482 if (got_type & GOT_TLSDESC_GD)
8483 {
8484 htab->root.srelplt->size += RELOC_SIZE (htab);
8485 /* Note RELOC_COUNT not incremented here! */
8486 htab->tlsdesc_plt = (bfd_vma) - 1;
8487 }
8488
8489 if (got_type & GOT_TLS_GD)
8490 htab->root.srelgot->size += RELOC_SIZE (htab) * 2;
8491
b53b1bed
JW		 8492 if (got_type & GOT_TLS_IE
8493 || got_type & GOT_NORMAL)
a06ea964
NC		 8494 htab->root.srelgot->size += RELOC_SIZE (htab);
8495 }
8496 }
8497 else
8498 {
8499 locals[i].got_refcount = (bfd_vma) - 1;
8500 }
8501 }
8502 }
8503
8504
8505 /* Allocate global sym .plt and .got entries, and space for global
8506 sym dynamic relocs. */
cec5225b 8507 elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_dynrelocs,
a06ea964
NC		 8508 info);
8509
1419bbe5
WN		 8510 /* Allocate global ifunc sym .plt and .got entries, and space for global
8511 ifunc sym dynamic relocs. */
8512 elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_ifunc_dynrelocs,
8513 info);
8514
8515 /* Allocate .plt and .got entries, and space for local symbols. */
8516 htab_traverse (htab->loc_hash_table,
8517 elfNN_aarch64_allocate_local_dynrelocs,
8518 info);
8519
8520 /* Allocate .plt and .got entries, and space for local ifunc symbols. */
8521 htab_traverse (htab->loc_hash_table,
8522 elfNN_aarch64_allocate_local_ifunc_dynrelocs,
8523 info);
a06ea964
NC		 8524
8525 /* For every jump slot reserved in the sgotplt, reloc_count is
8526 incremented. However, when we reserve space for TLS descriptors,
8527 it's not incremented, so in order to compute the space reserved
8528 for them, it suffices to multiply the reloc count by the jump
8529 slot size. */
8530
8531 if (htab->root.srelplt)
8847944f 8532 htab->sgotplt_jump_table_size = aarch64_compute_jump_table_size (htab);
a06ea964
NC		 8533
8534 if (htab->tlsdesc_plt)
8535 {
8536 if (htab->root.splt->size == 0)
8537 htab->root.splt->size += PLT_ENTRY_SIZE;
8538
8539 htab->tlsdesc_plt = htab->root.splt->size;
8540 htab->root.splt->size += PLT_TLSDESC_ENTRY_SIZE;
8541
8542 /* If we're not using lazy TLS relocations, don't generate the
8543 GOT entry required. */
8544 if (!(info->flags & DF_BIND_NOW))
8545 {
8546 htab->dt_tlsdesc_got = htab->root.sgot->size;
8547 htab->root.sgot->size += GOT_ENTRY_SIZE;
8548 }
8549 }
8550
68fcca92 8551 /* Init mapping symbols information to use later to distingush between
4106101c
MS		 8552 code and data while scanning for errata. */
8553 if (htab->fix_erratum_835769 || htab->fix_erratum_843419)
68fcca92
JW		 8554 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
8555 {
8556 if (!is_aarch64_elf (ibfd))
8557 continue;
8558 bfd_elfNN_aarch64_init_maps (ibfd);
8559 }
8560
a06ea964
NC		 8561 /* We now have determined the sizes of the various dynamic sections.
8562 Allocate memory for them. */
8563 relocs = FALSE;
8564 for (s = dynobj->sections; s != NULL; s = s->next)
8565 {
8566 if ((s->flags & SEC_LINKER_CREATED) == 0)
8567 continue;
8568
8569 if (s == htab->root.splt
8570 || s == htab->root.sgot
8571 || s == htab->root.sgotplt
8572 || s == htab->root.iplt
9d19e4fd 8573 || s == htab->root.igotplt
5474d94f
AM		 8574 || s == htab->root.sdynbss
8575 || s == htab->root.sdynrelro)
a06ea964
NC		 8576 {
8577 /* Strip this section if we don't need it; see the
8578 comment below. */
8579 }
8580 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
8581 {
8582 if (s->size != 0 && s != htab->root.srelplt)
8583 relocs = TRUE;
8584
8585 /* We use the reloc_count field as a counter if we need
8586 to copy relocs into the output file. */
8587 if (s != htab->root.srelplt)
8588 s->reloc_count = 0;
8589 }
8590 else
8591 {
8592 /* It's not one of our sections, so don't allocate space. */
8593 continue;
8594 }
8595
8596 if (s->size == 0)
8597 {
8598 /* If we don't need this section, strip it from the
8599 output file. This is mostly to handle .rela.bss and
8600 .rela.plt. We must create both sections in
8601 create_dynamic_sections, because they must be created
8602 before the linker maps input sections to output
8603 sections. The linker does that before
8604 adjust_dynamic_symbol is called, and it is that
8605 function which decides whether anything needs to go
8606 into these sections. */
a06ea964
NC		 8607 s->flags |= SEC_EXCLUDE;
8608 continue;
8609 }
8610
8611 if ((s->flags & SEC_HAS_CONTENTS) == 0)
8612 continue;
8613
8614 /* Allocate memory for the section contents. We use bfd_zalloc
8615 here in case unused entries are not reclaimed before the
8616 section's contents are written out. This should not happen,
8617 but this way if it does, we get a R_AARCH64_NONE reloc instead
8618 of garbage. */
8619 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
8620 if (s->contents == NULL)
8621 return FALSE;
8622 }
8623
8624 if (htab->root.dynamic_sections_created)
8625 {
8626 /* Add some entries to the .dynamic section. We fill in the
cec5225b 8627 values later, in elfNN_aarch64_finish_dynamic_sections, but we
a06ea964
NC		 8628 must add the entries now so that we get the correct size for
8629 the .dynamic section. The DT_DEBUG entry is filled in by the
8630 dynamic linker and used by the debugger. */
8631#define add_dynamic_entry(TAG, VAL) \
8632 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
8633
0e1862bb 8634 if (bfd_link_executable (info))
a06ea964
NC		 8635 {
8636 if (!add_dynamic_entry (DT_DEBUG, 0))
8637 return FALSE;
8638 }
8639
8640 if (htab->root.splt->size != 0)
8641 {
8642 if (!add_dynamic_entry (DT_PLTGOT, 0)
8643 || !add_dynamic_entry (DT_PLTRELSZ, 0)
8644 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
8645 || !add_dynamic_entry (DT_JMPREL, 0))
8646 return FALSE;
8647
8648 if (htab->tlsdesc_plt
8649 && (!add_dynamic_entry (DT_TLSDESC_PLT, 0)
8650 || !add_dynamic_entry (DT_TLSDESC_GOT, 0)))
8651 return FALSE;
8652 }
8653
8654 if (relocs)
8655 {
8656 if (!add_dynamic_entry (DT_RELA, 0)
8657 || !add_dynamic_entry (DT_RELASZ, 0)
8658 || !add_dynamic_entry (DT_RELAENT, RELOC_SIZE (htab)))
8659 return FALSE;
8660
8661 /* If any dynamic relocs apply to a read-only section,
8662 then we need a DT_TEXTREL entry. */
c2170589
JW		 8663 if ((info->flags & DF_TEXTREL) == 0)
8664 elf_link_hash_traverse (& htab->root, aarch64_readonly_dynrelocs,
8665 info);
8666
a06ea964
NC		 8667 if ((info->flags & DF_TEXTREL) != 0)
8668 {
8669 if (!add_dynamic_entry (DT_TEXTREL, 0))
8670 return FALSE;
8671 }
8672 }
8673 }
8674#undef add_dynamic_entry
8675
8676 return TRUE;
a06ea964
NC		 8677}
8678
8679static inline void
caed7120
YZ		 8680elf_aarch64_update_plt_entry (bfd *output_bfd,
8681 bfd_reloc_code_real_type r_type,
8682 bfd_byte *plt_entry, bfd_vma value)
a06ea964 8683{
caed7120
YZ		 8684 reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (r_type);
8685
8686 _bfd_aarch64_elf_put_addend (output_bfd, plt_entry, r_type, howto, value);
a06ea964
NC		 8687}
8688
8689static void
cec5225b
YZ		 8690elfNN_aarch64_create_small_pltn_entry (struct elf_link_hash_entry *h,
8691 struct elf_aarch64_link_hash_table
1419bbe5
WN		 8692 *htab, bfd *output_bfd,
8693 struct bfd_link_info *info)
a06ea964
NC		 8694{
8695 bfd_byte *plt_entry;
8696 bfd_vma plt_index;
8697 bfd_vma got_offset;
8698 bfd_vma gotplt_entry_address;
8699 bfd_vma plt_entry_address;
8700 Elf_Internal_Rela rela;
8701 bfd_byte *loc;
1419bbe5
WN		 8702 asection *plt, *gotplt, *relplt;
8703
8704 /* When building a static executable, use .iplt, .igot.plt and
8705 .rela.iplt sections for STT_GNU_IFUNC symbols. */
8706 if (htab->root.splt != NULL)
8707 {
8708 plt = htab->root.splt;
8709 gotplt = htab->root.sgotplt;
8710 relplt = htab->root.srelplt;
8711 }
8712 else
8713 {
8714 plt = htab->root.iplt;
8715 gotplt = htab->root.igotplt;
8716 relplt = htab->root.irelplt;
8717 }
8718
8719 /* Get the index in the procedure linkage table which
8720 corresponds to this symbol. This is the index of this symbol
8721 in all the symbols for which we are making plt entries. The
8722 first entry in the procedure linkage table is reserved.
a06ea964 8723
1419bbe5
WN		 8724 Get the offset into the .got table of the entry that
8725 corresponds to this function. Each .got entry is GOT_ENTRY_SIZE
8726 bytes. The first three are reserved for the dynamic linker.
692e2b8b 8727
1419bbe5
WN		 8728 For static executables, we don't reserve anything. */
8729
8730 if (plt == htab->root.splt)
8731 {
8732 plt_index = (h->plt.offset - htab->plt_header_size) / htab->plt_entry_size;
8733 got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
8734 }
8735 else
8736 {
8737 plt_index = h->plt.offset / htab->plt_entry_size;
8738 got_offset = plt_index * GOT_ENTRY_SIZE;
8739 }
8740
8741 plt_entry = plt->contents + h->plt.offset;
8742 plt_entry_address = plt->output_section->vma
f44a1f8e 8743 + plt->output_offset + h->plt.offset;
1419bbe5
WN		 8744 gotplt_entry_address = gotplt->output_section->vma +
8745 gotplt->output_offset + got_offset;
a06ea964
NC		 8746
8747 /* Copy in the boiler-plate for the PLTn entry. */
cec5225b 8748 memcpy (plt_entry, elfNN_aarch64_small_plt_entry, PLT_SMALL_ENTRY_SIZE);
a06ea964
NC		 8749
8750 /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8.
8751 ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */
caed7120
YZ		 8752 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL,
8753 plt_entry,
8754 PG (gotplt_entry_address) -
8755 PG (plt_entry_address));
a06ea964
NC		 8756
8757 /* Fill in the lo12 bits for the load from the pltgot. */
caed7120
YZ		 8758 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12,
8759 plt_entry + 4,
8760 PG_OFFSET (gotplt_entry_address));
a06ea964 8761
9aff4b7a 8762 /* Fill in the lo12 bits for the add from the pltgot entry. */
caed7120
YZ		 8763 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12,
8764 plt_entry + 8,
8765 PG_OFFSET (gotplt_entry_address));
a06ea964
NC		 8766
8767 /* All the GOTPLT Entries are essentially initialized to PLT0. */
cec5225b 8768 bfd_put_NN (output_bfd,
1419bbe5
WN		 8769 plt->output_section->vma + plt->output_offset,
8770 gotplt->contents + got_offset);
a06ea964 8771
a06ea964 8772 rela.r_offset = gotplt_entry_address;
1419bbe5
WN		 8773
8774 if (h->dynindx == -1
0e1862bb 8775 || ((bfd_link_executable (info)
1419bbe5
WN		 8776 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
8777 && h->def_regular
8778 && h->type == STT_GNU_IFUNC))
8779 {
8780 /* If an STT_GNU_IFUNC symbol is locally defined, generate
8781 R_AARCH64_IRELATIVE instead of R_AARCH64_JUMP_SLOT. */
8782 rela.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE));
8783 rela.r_addend = (h->root.u.def.value
8784 + h->root.u.def.section->output_section->vma
8785 + h->root.u.def.section->output_offset);
8786 }
8787 else
8788 {
8789 /* Fill in the entry in the .rela.plt section. */
8790 rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (JUMP_SLOT));
8791 rela.r_addend = 0;
8792 }
a06ea964
NC		 8793
8794 /* Compute the relocation entry to used based on PLT index and do
8795 not adjust reloc_count. The reloc_count has already been adjusted
8796 to account for this entry. */
1419bbe5 8797 loc = relplt->contents + plt_index * RELOC_SIZE (htab);
cec5225b 8798 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964
NC		 8799}
8800
8801/* Size sections even though they're not dynamic. We use it to setup
8802 _TLS_MODULE_BASE_, if needed. */
8803
8804static bfd_boolean
cec5225b 8805elfNN_aarch64_always_size_sections (bfd *output_bfd,
a06ea964
NC		 8806 struct bfd_link_info *info)
8807{
8808 asection *tls_sec;
8809
0e1862bb 8810 if (bfd_link_relocatable (info))
a06ea964
NC		 8811 return TRUE;
8812
8813 tls_sec = elf_hash_table (info)->tls_sec;
8814
8815 if (tls_sec)
8816 {
8817 struct elf_link_hash_entry *tlsbase;
8818
8819 tlsbase = elf_link_hash_lookup (elf_hash_table (info),
8820 "_TLS_MODULE_BASE_", TRUE, TRUE, FALSE);
8821
8822 if (tlsbase)
8823 {
8824 struct bfd_link_hash_entry *h = NULL;
8825 const struct elf_backend_data *bed =
8826 get_elf_backend_data (output_bfd);
8827
8828 if (!(_bfd_generic_link_add_one_symbol
8829 (info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL,
8830 tls_sec, 0, NULL, FALSE, bed->collect, &h)))
8831 return FALSE;
8832
8833 tlsbase->type = STT_TLS;
8834 tlsbase = (struct elf_link_hash_entry *) h;
8835 tlsbase->def_regular = 1;
8836 tlsbase->other = STV_HIDDEN;
8837 (*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE);
8838 }
8839 }
8840
8841 return TRUE;
8842}
8843
8844/* Finish up dynamic symbol handling. We set the contents of various
8845 dynamic sections here. */
2d0ca824 8846
a06ea964 8847static bfd_boolean
cec5225b 8848elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd,
a06ea964
NC		 8849 struct bfd_link_info *info,
8850 struct elf_link_hash_entry *h,
8851 Elf_Internal_Sym *sym)
8852{
cec5225b
YZ		 8853 struct elf_aarch64_link_hash_table *htab;
8854 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 8855
8856 if (h->plt.offset != (bfd_vma) - 1)
8857 {
1419bbe5
WN		 8858 asection *plt, *gotplt, *relplt;
8859
a06ea964
NC		 8860 /* This symbol has an entry in the procedure linkage table. Set
8861 it up. */
8862
1419bbe5
WN		 8863 /* When building a static executable, use .iplt, .igot.plt and
8864 .rela.iplt sections for STT_GNU_IFUNC symbols. */
8865 if (htab->root.splt != NULL)
8866 {
8867 plt = htab->root.splt;
8868 gotplt = htab->root.sgotplt;
8869 relplt = htab->root.srelplt;
8870 }
8871 else
8872 {
8873 plt = htab->root.iplt;
8874 gotplt = htab->root.igotplt;
8875 relplt = htab->root.irelplt;
8876 }
8877
8878 /* This symbol has an entry in the procedure linkage table. Set
8879 it up. */
8880 if ((h->dynindx == -1
0e1862bb 8881 && !((h->forced_local || bfd_link_executable (info))
1419bbe5
WN		 8882 && h->def_regular
8883 && h->type == STT_GNU_IFUNC))
8884 || plt == NULL
8885 || gotplt == NULL
8886 || relplt == NULL)
f955cccf 8887 return FALSE;
a06ea964 8888
1419bbe5 8889 elfNN_aarch64_create_small_pltn_entry (h, htab, output_bfd, info);
a06ea964
NC		 8890 if (!h->def_regular)
8891 {
8892 /* Mark the symbol as undefined, rather than as defined in
46b87d49 8893 the .plt section. */
a06ea964 8894 sym->st_shndx = SHN_UNDEF;
46b87d49
WN		 8895 /* If the symbol is weak we need to clear the value.
8896 Otherwise, the PLT entry would provide a definition for
8897 the symbol even if the symbol wasn't defined anywhere,
8898 and so the symbol would never be NULL. Leave the value if
8899 there were any relocations where pointer equality matters
8900 (this is a clue for the dynamic linker, to make function
8901 pointer comparisons work between an application and shared
8902 library). */
8903 if (!h->ref_regular_nonweak || !h->pointer_equality_needed)
8904 sym->st_value = 0;
a06ea964
NC		 8905 }
8906 }
8907
8908 if (h->got.offset != (bfd_vma) - 1
cec5225b 8909 && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL)
a06ea964
NC		 8910 {
8911 Elf_Internal_Rela rela;
8912 bfd_byte *loc;
8913
8914 /* This symbol has an entry in the global offset table. Set it
8915 up. */
8916 if (htab->root.sgot == NULL || htab->root.srelgot == NULL)
8917 abort ();
8918
8919 rela.r_offset = (htab->root.sgot->output_section->vma
8920 + htab->root.sgot->output_offset
8921 + (h->got.offset & ~(bfd_vma) 1));
8922
49206388
WN		 8923 if (h->def_regular
8924 && h->type == STT_GNU_IFUNC)
8925 {
0e1862bb 8926 if (bfd_link_pic (info))
49206388
WN		 8927 {
8928 /* Generate R_AARCH64_GLOB_DAT. */
8929 goto do_glob_dat;
8930 }
8931 else
8932 {
8933 asection *plt;
8934
8935 if (!h->pointer_equality_needed)
8936 abort ();
8937
8938 /* For non-shared object, we can't use .got.plt, which
8939 contains the real function address if we need pointer
8940 equality. We load the GOT entry with the PLT entry. */
8941 plt = htab->root.splt ? htab->root.splt : htab->root.iplt;
8942 bfd_put_NN (output_bfd, (plt->output_section->vma
8943 + plt->output_offset
8944 + h->plt.offset),
8945 htab->root.sgot->contents
8946 + (h->got.offset & ~(bfd_vma) 1));
8947 return TRUE;
8948 }
8949 }
0e1862bb 8950 else if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
a06ea964
NC		 8951 {
8952 if (!h->def_regular)
8953 return FALSE;
8954
8955 BFD_ASSERT ((h->got.offset & 1) != 0);
a6bb11b2 8956 rela.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
a06ea964
NC		 8957 rela.r_addend = (h->root.u.def.value
8958 + h->root.u.def.section->output_section->vma
8959 + h->root.u.def.section->output_offset);
8960 }
8961 else
8962 {
49206388 8963do_glob_dat:
a06ea964 8964 BFD_ASSERT ((h->got.offset & 1) == 0);
cec5225b 8965 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964 8966 htab->root.sgot->contents + h->got.offset);
a6bb11b2 8967 rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (GLOB_DAT));
a06ea964
NC		 8968 rela.r_addend = 0;
8969 }
8970
8971 loc = htab->root.srelgot->contents;
8972 loc += htab->root.srelgot->reloc_count++ * RELOC_SIZE (htab);
cec5225b 8973 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964
NC		 8974 }
8975
8976 if (h->needs_copy)
8977 {
8978 Elf_Internal_Rela rela;
5474d94f 8979 asection *s;
a06ea964
NC		 8980 bfd_byte *loc;
8981
8982 /* This symbol needs a copy reloc. Set it up. */
a06ea964
NC		 8983 if (h->dynindx == -1
8984 || (h->root.type != bfd_link_hash_defined
8985 && h->root.type != bfd_link_hash_defweak)
9d19e4fd 8986 || htab->root.srelbss == NULL)
a06ea964
NC		 8987 abort ();
8988
8989 rela.r_offset = (h->root.u.def.value
8990 + h->root.u.def.section->output_section->vma
8991 + h->root.u.def.section->output_offset);
a6bb11b2 8992 rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (COPY));
a06ea964 8993 rela.r_addend = 0;
afbf7e8e 8994 if (h->root.u.def.section == htab->root.sdynrelro)
5474d94f
AM		 8995 s = htab->root.sreldynrelro;
8996 else
8997 s = htab->root.srelbss;
8998 loc = s->contents + s->reloc_count++ * RELOC_SIZE (htab);
cec5225b 8999 bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
a06ea964
NC		 9000 }
9001
9002 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. SYM may
9003 be NULL for local symbols. */
9004 if (sym != NULL
9637f6ef 9005 && (h == elf_hash_table (info)->hdynamic
a06ea964
NC		 9006 || h == elf_hash_table (info)->hgot))
9007 sym->st_shndx = SHN_ABS;
9008
9009 return TRUE;
9010}
9011
1419bbe5
WN		 9012/* Finish up local dynamic symbol handling. We set the contents of
9013 various dynamic sections here. */
9014
9015static bfd_boolean
9016elfNN_aarch64_finish_local_dynamic_symbol (void **slot, void *inf)
9017{
9018 struct elf_link_hash_entry *h
9019 = (struct elf_link_hash_entry *) *slot;
9020 struct bfd_link_info *info
9021 = (struct bfd_link_info *) inf;
9022
9023 return elfNN_aarch64_finish_dynamic_symbol (info->output_bfd,
9024 info, h, NULL);
9025}
9026
a06ea964 9027static void
cec5225b
YZ		 9028elfNN_aarch64_init_small_plt0_entry (bfd *output_bfd ATTRIBUTE_UNUSED,
9029 struct elf_aarch64_link_hash_table
a06ea964
NC		 9030 *htab)
9031{
9032 /* Fill in PLT0. Fixme:RR Note this doesn't distinguish between
9033 small and large plts and at the minute just generates
9034 the small PLT. */
9035
cec5225b 9036 /* PLT0 of the small PLT looks like this in ELF64 -
a06ea964
NC		 9037 stp x16, x30, [sp, #-16]! // Save the reloc and lr on stack.
9038 adrp x16, PLT_GOT + 16 // Get the page base of the GOTPLT
9039 ldr x17, [x16, #:lo12:PLT_GOT+16] // Load the address of the
9040 // symbol resolver
9041 add x16, x16, #:lo12:PLT_GOT+16 // Load the lo12 bits of the
9042 // GOTPLT entry for this.
9043 br x17
cec5225b 9044 PLT0 will be slightly different in ELF32 due to different got entry
2d0ca824 9045 size. */
caed7120 9046 bfd_vma plt_got_2nd_ent; /* Address of GOT[2]. */
a06ea964
NC		 9047 bfd_vma plt_base;
9048
9049
cec5225b 9050 memcpy (htab->root.splt->contents, elfNN_aarch64_small_plt0_entry,
a06ea964
NC		 9051 PLT_ENTRY_SIZE);
9052 elf_section_data (htab->root.splt->output_section)->this_hdr.sh_entsize =
9053 PLT_ENTRY_SIZE;
9054
caed7120
YZ		 9055 plt_got_2nd_ent = (htab->root.sgotplt->output_section->vma
9056 + htab->root.sgotplt->output_offset
9057 + GOT_ENTRY_SIZE * 2);
a06ea964
NC		 9058
9059 plt_base = htab->root.splt->output_section->vma +
f44a1f8e 9060 htab->root.splt->output_offset;
a06ea964
NC		 9061
9062 /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8.
9063 ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */
caed7120
YZ		 9064 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL,
9065 htab->root.splt->contents + 4,
9066 PG (plt_got_2nd_ent) - PG (plt_base + 4));
a06ea964 9067
caed7120
YZ		 9068 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12,
9069 htab->root.splt->contents + 8,
9070 PG_OFFSET (plt_got_2nd_ent));
a06ea964 9071
caed7120
YZ		 9072 elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12,
9073 htab->root.splt->contents + 12,
9074 PG_OFFSET (plt_got_2nd_ent));
a06ea964
NC		 9075}
9076
9077static bfd_boolean
cec5225b 9078elfNN_aarch64_finish_dynamic_sections (bfd *output_bfd,
a06ea964
NC		 9079 struct bfd_link_info *info)
9080{
cec5225b 9081 struct elf_aarch64_link_hash_table *htab;
a06ea964
NC		 9082 bfd *dynobj;
9083 asection *sdyn;
9084
cec5225b 9085 htab = elf_aarch64_hash_table (info);
a06ea964
NC		 9086 dynobj = htab->root.dynobj;
9087 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9088
9089 if (htab->root.dynamic_sections_created)
9090 {
cec5225b 9091 ElfNN_External_Dyn *dyncon, *dynconend;
a06ea964
NC		 9092
9093 if (sdyn == NULL || htab->root.sgot == NULL)
9094 abort ();
9095
cec5225b
YZ		 9096 dyncon = (ElfNN_External_Dyn *) sdyn->contents;
9097 dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
a06ea964
NC		 9098 for (; dyncon < dynconend; dyncon++)
9099 {
9100 Elf_Internal_Dyn dyn;
9101 asection *s;
9102
cec5225b 9103 bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
a06ea964
NC		 9104
9105 switch (dyn.d_tag)
9106 {
9107 default:
9108 continue;
9109
9110 case DT_PLTGOT:
9111 s = htab->root.sgotplt;
9112 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9113 break;
9114
9115 case DT_JMPREL:
4ade44b7
AM		 9116 s = htab->root.srelplt;
9117 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
a06ea964
NC		 9118 break;
9119
9120 case DT_PLTRELSZ:
c955de36 9121 s = htab->root.srelplt;
a06ea964
NC		 9122 dyn.d_un.d_val = s->size;
9123 break;
9124
a06ea964
NC		 9125 case DT_TLSDESC_PLT:
9126 s = htab->root.splt;
9127 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
9128 + htab->tlsdesc_plt;
9129 break;
9130
9131 case DT_TLSDESC_GOT:
9132 s = htab->root.sgot;
9133 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
9134 + htab->dt_tlsdesc_got;
9135 break;
9136 }
9137
cec5225b 9138 bfd_elfNN_swap_dyn_out (output_bfd, &dyn, dyncon);
a06ea964
NC		 9139 }
9140
9141 }
9142
9143 /* Fill in the special first entry in the procedure linkage table. */
9144 if (htab->root.splt && htab->root.splt->size > 0)
9145 {
cec5225b 9146 elfNN_aarch64_init_small_plt0_entry (output_bfd, htab);
a06ea964
NC		 9147
9148 elf_section_data (htab->root.splt->output_section)->
9149 this_hdr.sh_entsize = htab->plt_entry_size;
9150
9151
9152 if (htab->tlsdesc_plt)
9153 {
cec5225b 9154 bfd_put_NN (output_bfd, (bfd_vma) 0,
a06ea964
NC		 9155 htab->root.sgot->contents + htab->dt_tlsdesc_got);
9156
9157 memcpy (htab->root.splt->contents + htab->tlsdesc_plt,
cec5225b
YZ		 9158 elfNN_aarch64_tlsdesc_small_plt_entry,
9159 sizeof (elfNN_aarch64_tlsdesc_small_plt_entry));
a06ea964
NC		 9160
9161 {
9162 bfd_vma adrp1_addr =
9163 htab->root.splt->output_section->vma
9164 + htab->root.splt->output_offset + htab->tlsdesc_plt + 4;
9165
caed7120 9166 bfd_vma adrp2_addr = adrp1_addr + 4;
a06ea964
NC		 9167
9168 bfd_vma got_addr =
9169 htab->root.sgot->output_section->vma
9170 + htab->root.sgot->output_offset;
9171
9172 bfd_vma pltgot_addr =
9173 htab->root.sgotplt->output_section->vma
9174 + htab->root.sgotplt->output_offset;
9175
9176 bfd_vma dt_tlsdesc_got = got_addr + htab->dt_tlsdesc_got;
caed7120
YZ		 9177
9178 bfd_byte *plt_entry =
9179 htab->root.splt->contents + htab->tlsdesc_plt;
a06ea964
NC		 9180
9181 /* adrp x2, DT_TLSDESC_GOT */
caed7120
YZ		 9182 elf_aarch64_update_plt_entry (output_bfd,
9183 BFD_RELOC_AARCH64_ADR_HI21_PCREL,
9184 plt_entry + 4,
9185 (PG (dt_tlsdesc_got)
9186 - PG (adrp1_addr)));
a06ea964
NC		 9187
9188 /* adrp x3, 0 */
caed7120
YZ		 9189 elf_aarch64_update_plt_entry (output_bfd,
9190 BFD_RELOC_AARCH64_ADR_HI21_PCREL,
9191 plt_entry + 8,
9192 (PG (pltgot_addr)
9193 - PG (adrp2_addr)));
a06ea964
NC		 9194
9195 /* ldr x2, [x2, #0] */
caed7120
YZ		 9196 elf_aarch64_update_plt_entry (output_bfd,
9197 BFD_RELOC_AARCH64_LDSTNN_LO12,
9198 plt_entry + 12,
9199 PG_OFFSET (dt_tlsdesc_got));
a06ea964
NC		 9200
9201 /* add x3, x3, 0 */
caed7120
YZ		 9202 elf_aarch64_update_plt_entry (output_bfd,
9203 BFD_RELOC_AARCH64_ADD_LO12,
9204 plt_entry + 16,
9205 PG_OFFSET (pltgot_addr));
a06ea964
NC		 9206 }
9207 }
9208 }
9209
9210 if (htab->root.sgotplt)
9211 {
9212 if (bfd_is_abs_section (htab->root.sgotplt->output_section))
9213 {
4eca0228 9214 _bfd_error_handler
a06ea964
NC		 9215 (_("discarded output section: `%A'"), htab->root.sgotplt);
9216 return FALSE;
9217 }
9218
9219 /* Fill in the first three entries in the global offset table. */
9220 if (htab->root.sgotplt->size > 0)
9221 {
8db339a6
MS		 9222 bfd_put_NN (output_bfd, (bfd_vma) 0, htab->root.sgotplt->contents);
9223
a06ea964 9224 /* Write GOT[1] and GOT[2], needed for the dynamic linker. */
cec5225b 9225 bfd_put_NN (output_bfd,
a06ea964
NC		 9226 (bfd_vma) 0,
9227 htab->root.sgotplt->contents + GOT_ENTRY_SIZE);
cec5225b 9228 bfd_put_NN (output_bfd,
a06ea964
NC		 9229 (bfd_vma) 0,
9230 htab->root.sgotplt->contents + GOT_ENTRY_SIZE * 2);
9231 }
9232
8db339a6
MS		 9233 if (htab->root.sgot)
9234 {
9235 if (htab->root.sgot->size > 0)
9236 {
9237 bfd_vma addr =
9238 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0;
9239 bfd_put_NN (output_bfd, addr, htab->root.sgot->contents);
9240 }
9241 }
9242
a06ea964
NC		 9243 elf_section_data (htab->root.sgotplt->output_section)->
9244 this_hdr.sh_entsize = GOT_ENTRY_SIZE;
9245 }
9246
9247 if (htab->root.sgot && htab->root.sgot->size > 0)
9248 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize
9249 = GOT_ENTRY_SIZE;
9250
1419bbe5
WN		 9251 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
9252 htab_traverse (htab->loc_hash_table,
9253 elfNN_aarch64_finish_local_dynamic_symbol,
9254 info);
9255
a06ea964
NC		 9256 return TRUE;
9257}
9258
9259/* Return address for Ith PLT stub in section PLT, for relocation REL
9260 or (bfd_vma) -1 if it should not be included. */
9261
9262static bfd_vma
cec5225b 9263elfNN_aarch64_plt_sym_val (bfd_vma i, const asection *plt,
a06ea964
NC		 9264 const arelent *rel ATTRIBUTE_UNUSED)
9265{
9266 return plt->vma + PLT_ENTRY_SIZE + i * PLT_SMALL_ENTRY_SIZE;
9267}
9268
d691934d
NC		 9269/* Returns TRUE if NAME is an AArch64 mapping symbol.
9270 The ARM ELF standard defines $x (for A64 code) and $d (for data).
9271 It also allows a period initiated suffix to be added to the symbol, ie:
9272 "$[adtx]\.[:sym_char]+". */
9273
9274static bfd_boolean
9275is_aarch64_mapping_symbol (const char * name)
9276{
9277 return name != NULL /* Paranoia. */
9278 && name[0] == '$' /* Note: if objcopy --prefix-symbols has been used then
9279 the mapping symbols could have acquired a prefix.
9280 We do not support this here, since such symbols no
9281 longer conform to the ARM ELF ABI. */
9282 && (name[1] == 'd' || name[1] == 'x')
9283 && (name[2] == 0 || name[2] == '.');
9284 /* FIXME: Strictly speaking the symbol is only a valid mapping symbol if
9285 any characters that follow the period are legal characters for the body
9286 of a symbol's name. For now we just assume that this is the case. */
9287}
9288
9289/* Make sure that mapping symbols in object files are not removed via the
9290 "strip --strip-unneeded" tool. These symbols might needed in order to
9291 correctly generate linked files. Once an object file has been linked,
9292 it should be safe to remove them. */
9293
9294static void
9295elfNN_aarch64_backend_symbol_processing (bfd *abfd, asymbol *sym)
9296{
9297 if (((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
9298 && sym->section != bfd_abs_section_ptr
9299 && is_aarch64_mapping_symbol (sym->name))
9300 sym->flags |= BSF_KEEP;
9301}
9302
a06ea964
NC		 9303
9304/* We use this so we can override certain functions
9305 (though currently we don't). */
9306
cec5225b 9307const struct elf_size_info elfNN_aarch64_size_info =
a06ea964 9308{
cec5225b
YZ		 9309 sizeof (ElfNN_External_Ehdr),
9310 sizeof (ElfNN_External_Phdr),
9311 sizeof (ElfNN_External_Shdr),
9312 sizeof (ElfNN_External_Rel),
9313 sizeof (ElfNN_External_Rela),
9314 sizeof (ElfNN_External_Sym),
9315 sizeof (ElfNN_External_Dyn),
a06ea964
NC		 9316 sizeof (Elf_External_Note),
9317 4, /* Hash table entry size. */
9318 1, /* Internal relocs per external relocs. */
cec5225b
YZ		 9319 ARCH_SIZE, /* Arch size. */
9320 LOG_FILE_ALIGN, /* Log_file_align. */
9321 ELFCLASSNN, EV_CURRENT,
9322 bfd_elfNN_write_out_phdrs,
9323 bfd_elfNN_write_shdrs_and_ehdr,
9324 bfd_elfNN_checksum_contents,
9325 bfd_elfNN_write_relocs,
9326 bfd_elfNN_swap_symbol_in,
9327 bfd_elfNN_swap_symbol_out,
9328 bfd_elfNN_slurp_reloc_table,
9329 bfd_elfNN_slurp_symbol_table,
9330 bfd_elfNN_swap_dyn_in,
9331 bfd_elfNN_swap_dyn_out,
9332 bfd_elfNN_swap_reloc_in,
9333 bfd_elfNN_swap_reloc_out,
9334 bfd_elfNN_swap_reloca_in,
9335 bfd_elfNN_swap_reloca_out
a06ea964
NC		 9336};
9337
9338#define ELF_ARCH bfd_arch_aarch64
9339#define ELF_MACHINE_CODE EM_AARCH64
9340#define ELF_MAXPAGESIZE 0x10000
9341#define ELF_MINPAGESIZE 0x1000
9342#define ELF_COMMONPAGESIZE 0x1000
9343
cec5225b
YZ		 9344#define bfd_elfNN_close_and_cleanup \
9345 elfNN_aarch64_close_and_cleanup
a06ea964 9346
cec5225b
YZ		 9347#define bfd_elfNN_bfd_free_cached_info \
9348 elfNN_aarch64_bfd_free_cached_info
a06ea964 9349
cec5225b
YZ		 9350#define bfd_elfNN_bfd_is_target_special_symbol \
9351 elfNN_aarch64_is_target_special_symbol
a06ea964 9352
cec5225b
YZ		 9353#define bfd_elfNN_bfd_link_hash_table_create \
9354 elfNN_aarch64_link_hash_table_create
a06ea964 9355
cec5225b
YZ		 9356#define bfd_elfNN_bfd_merge_private_bfd_data \
9357 elfNN_aarch64_merge_private_bfd_data
a06ea964 9358
cec5225b
YZ		 9359#define bfd_elfNN_bfd_print_private_bfd_data \
9360 elfNN_aarch64_print_private_bfd_data
a06ea964 9361
cec5225b
YZ		 9362#define bfd_elfNN_bfd_reloc_type_lookup \
9363 elfNN_aarch64_reloc_type_lookup
a06ea964 9364
cec5225b
YZ		 9365#define bfd_elfNN_bfd_reloc_name_lookup \
9366 elfNN_aarch64_reloc_name_lookup
a06ea964 9367
cec5225b
YZ		 9368#define bfd_elfNN_bfd_set_private_flags \
9369 elfNN_aarch64_set_private_flags
a06ea964 9370
cec5225b
YZ		 9371#define bfd_elfNN_find_inliner_info \
9372 elfNN_aarch64_find_inliner_info
a06ea964 9373
cec5225b
YZ		 9374#define bfd_elfNN_find_nearest_line \
9375 elfNN_aarch64_find_nearest_line
a06ea964 9376
cec5225b
YZ		 9377#define bfd_elfNN_mkobject \
9378 elfNN_aarch64_mkobject
a06ea964 9379
cec5225b
YZ		 9380#define bfd_elfNN_new_section_hook \
9381 elfNN_aarch64_new_section_hook
a06ea964
NC		 9382
9383#define elf_backend_adjust_dynamic_symbol \
cec5225b 9384 elfNN_aarch64_adjust_dynamic_symbol
a06ea964
NC		 9385
9386#define elf_backend_always_size_sections \
cec5225b 9387 elfNN_aarch64_always_size_sections
a06ea964
NC		 9388
9389#define elf_backend_check_relocs \
cec5225b 9390 elfNN_aarch64_check_relocs
a06ea964
NC		 9391
9392#define elf_backend_copy_indirect_symbol \
cec5225b 9393 elfNN_aarch64_copy_indirect_symbol
a06ea964
NC		 9394
9395/* Create .dynbss, and .rela.bss sections in DYNOBJ, and set up shortcuts
9396 to them in our hash. */
9397#define elf_backend_create_dynamic_sections \
cec5225b 9398 elfNN_aarch64_create_dynamic_sections
a06ea964
NC		 9399
9400#define elf_backend_init_index_section \
9401 _bfd_elf_init_2_index_sections
9402
a06ea964 9403#define elf_backend_finish_dynamic_sections \
cec5225b 9404 elfNN_aarch64_finish_dynamic_sections
a06ea964
NC		 9405
9406#define elf_backend_finish_dynamic_symbol \
cec5225b 9407 elfNN_aarch64_finish_dynamic_symbol
a06ea964
NC		 9408
9409#define elf_backend_gc_sweep_hook \
cec5225b 9410 elfNN_aarch64_gc_sweep_hook
a06ea964
NC		 9411
9412#define elf_backend_object_p \
cec5225b 9413 elfNN_aarch64_object_p
a06ea964
NC		 9414
9415#define elf_backend_output_arch_local_syms \
cec5225b 9416 elfNN_aarch64_output_arch_local_syms
a06ea964
NC		 9417
9418#define elf_backend_plt_sym_val \
cec5225b 9419 elfNN_aarch64_plt_sym_val
a06ea964
NC		 9420
9421#define elf_backend_post_process_headers \
cec5225b 9422 elfNN_aarch64_post_process_headers
a06ea964
NC		 9423
9424#define elf_backend_relocate_section \
cec5225b 9425 elfNN_aarch64_relocate_section
a06ea964
NC		 9426
9427#define elf_backend_reloc_type_class \
cec5225b 9428 elfNN_aarch64_reloc_type_class
a06ea964 9429
a06ea964 9430#define elf_backend_section_from_shdr \
cec5225b 9431 elfNN_aarch64_section_from_shdr
a06ea964
NC		 9432
9433#define elf_backend_size_dynamic_sections \
cec5225b 9434 elfNN_aarch64_size_dynamic_sections
a06ea964
NC		 9435
9436#define elf_backend_size_info \
cec5225b 9437 elfNN_aarch64_size_info
a06ea964 9438
68fcca92
JW		 9439#define elf_backend_write_section \
9440 elfNN_aarch64_write_section
9441
d691934d
NC		 9442#define elf_backend_symbol_processing \
9443 elfNN_aarch64_backend_symbol_processing
9444
a06ea964 9445#define elf_backend_can_refcount 1
59c108f7 9446#define elf_backend_can_gc_sections 1
a06ea964
NC		 9447#define elf_backend_plt_readonly 1
9448#define elf_backend_want_got_plt 1
9449#define elf_backend_want_plt_sym 0
5474d94f 9450#define elf_backend_want_dynrelro 1
a06ea964
NC		 9451#define elf_backend_may_use_rel_p 0
9452#define elf_backend_may_use_rela_p 1
9453#define elf_backend_default_use_rela_p 1
2e0488d3 9454#define elf_backend_rela_normal 1
64f52338 9455#define elf_backend_dtrel_excludes_plt 1
a06ea964 9456#define elf_backend_got_header_size (GOT_ENTRY_SIZE * 3)
c495064d 9457#define elf_backend_default_execstack 0
32f573bc 9458#define elf_backend_extern_protected_data 1
7f784814 9459#define elf_backend_hash_symbol elf_aarch64_hash_symbol
a06ea964
NC		 9460
9461#undef elf_backend_obj_attrs_section
9462#define elf_backend_obj_attrs_section ".ARM.attributes"
9463
cec5225b 9464#include "elfNN-target.h"
a75cf613
ES		 9465
9466/* CloudABI support. */
9467
9468#undef TARGET_LITTLE_SYM
9469#define TARGET_LITTLE_SYM aarch64_elfNN_le_cloudabi_vec
9470#undef TARGET_LITTLE_NAME
9471#define TARGET_LITTLE_NAME "elfNN-littleaarch64-cloudabi"
9472#undef TARGET_BIG_SYM
9473#define TARGET_BIG_SYM aarch64_elfNN_be_cloudabi_vec
9474#undef TARGET_BIG_NAME
9475#define TARGET_BIG_NAME "elfNN-bigaarch64-cloudabi"
9476
9477#undef ELF_OSABI
9478#define ELF_OSABI ELFOSABI_CLOUDABI
9479
9480#undef elfNN_bed
9481#define elfNN_bed elfNN_aarch64_cloudabi_bed
9482
9483#include "elfNN-target.h"
GDB Binutils - Deliverables
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