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1 | /* AArch64 ELF support for BFD. |
2 | ||
3 | Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc. | |
4 | Contributed by ARM Ltd. | |
5 | ||
6 | This file is part of GNU Binutils. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the license, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; see the file COPYING3. If not, | |
20 | see <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | #ifndef _ELF_AARCH64_H | |
23 | #define _ELF_AARCH64_H | |
24 | ||
25 | #include "elf/reloc-macros.h" | |
26 | ||
27 | /* Processor specific program header types. */ | |
28 | #define PT_AARCH64_ARCHEXT (PT_LOPROC + 0) | |
29 | ||
30 | /* Additional section types. */ | |
31 | #define SHT_AARCH64_ATTRIBUTES 0x70000003 /* Section holds attributes. */ | |
32 | ||
33 | /* AArch64-specific values for sh_flags. */ | |
34 | #define SHF_ENTRYSECT 0x10000000 /* Section contains an | |
35 | entry point. */ | |
36 | #define SHF_COMDEF 0x80000000 /* Section may be multiply defined | |
37 | in the input to a link step. */ | |
38 | ||
39 | /* Relocation types. */ | |
40 | ||
41 | START_RELOC_NUMBERS (elf_aarch64_reloc_type) | |
42 | ||
43 | /* Null relocations. */ | |
44 | RELOC_NUMBER (R_AARCH64_NONE, 0) /* No reloc */ | |
45 | ||
46 | FAKE_RELOC (R_AARCH64_static_min, 256) | |
47 | ||
48 | RELOC_NUMBER (R_AARCH64_NULL, 256) /* No reloc */ | |
49 | ||
50 | /* Basic data relocations. */ | |
51 | ||
52 | /* .xword: (S+A) */ | |
53 | RELOC_NUMBER (R_AARCH64_ABS64, 257) | |
54 | ||
55 | /* .word: (S+A) */ | |
56 | RELOC_NUMBER (R_AARCH64_ABS32, 258) | |
57 | ||
58 | /* .half: (S+A) */ | |
59 | RELOC_NUMBER (R_AARCH64_ABS16, 259) | |
60 | ||
61 | /* .xword: (S+A-P) */ | |
62 | RELOC_NUMBER (R_AARCH64_PREL64, 260) | |
63 | ||
64 | /* .word: (S+A-P) */ | |
65 | RELOC_NUMBER (R_AARCH64_PREL32, 261) | |
66 | ||
67 | /* .half: (S+A-P) */ | |
68 | RELOC_NUMBER (R_AARCH64_PREL16, 262) | |
69 | ||
70 | /* Group relocations to create a 16, 32, 48 or 64 bit | |
71 | unsigned data or abs address inline. */ | |
72 | ||
73 | /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ | |
74 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0, 263) | |
75 | ||
76 | /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ | |
77 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0_NC, 264) | |
78 | ||
79 | /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ | |
80 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1, 265) | |
81 | ||
82 | /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ | |
83 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1_NC, 266) | |
84 | ||
85 | /* MOV[ZK]: ((S+A) >> 32) & 0xffff */ | |
86 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2, 267) | |
87 | ||
88 | /* MOV[ZK]: ((S+A) >> 32) & 0xffff */ | |
89 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2_NC, 268) | |
90 | ||
91 | /* MOV[ZK]: ((S+A) >> 48) & 0xffff */ | |
92 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G3, 269) | |
93 | ||
94 | /* Group relocations to create high part of a 16, 32, 48 or 64 bit | |
95 | signed data or abs address inline. Will change instruction | |
96 | to MOVN or MOVZ depending on sign of calculated value. */ | |
97 | ||
98 | /* MOV[ZN]: ((S+A) >> 0) & 0xffff */ | |
99 | RELOC_NUMBER (R_AARCH64_MOVW_SABS_G0, 270) | |
100 | ||
101 | /* MOV[ZN]: ((S+A) >> 16) & 0xffff */ | |
102 | RELOC_NUMBER (R_AARCH64_MOVW_SABS_G1, 271) | |
103 | ||
104 | /* MOV[ZN]: ((S+A) >> 32) & 0xffff */ | |
105 | RELOC_NUMBER (R_AARCH64_MOVW_SABS_G2, 272) | |
106 | ||
107 | /* Relocations to generate 19, 21 and 33 bit PC-relative load/store | |
108 | addresses: PG(x) is (x & ~0xfff). */ | |
109 | ||
110 | /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */ | |
111 | RELOC_NUMBER (R_AARCH64_LD_PREL_LO19, 273) | |
112 | ||
113 | /* ADR: (S+A-P) & 0x1fffff */ | |
114 | RELOC_NUMBER (R_AARCH64_ADR_PREL_LO21, 274) | |
115 | ||
116 | /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
117 | RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21, 275) | |
118 | ||
119 | /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
120 | RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21_NC, 276) | |
121 | ||
122 | /* ADD: (S+A) & 0xfff */ | |
123 | RELOC_NUMBER (R_AARCH64_ADD_ABS_LO12_NC, 277) | |
124 | ||
125 | /* LD/ST8: (S+A) & 0xfff */ | |
126 | RELOC_NUMBER (R_AARCH64_LDST8_ABS_LO12_NC, 278) | |
127 | ||
128 | /* Relocations for control-flow instructions. */ | |
129 | ||
130 | /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff. */ | |
131 | RELOC_NUMBER (R_AARCH64_TSTBR14, 279) | |
132 | ||
133 | /* B.cond: ((S+A-P) >> 2) & 0x7ffff. */ | |
134 | RELOC_NUMBER (R_AARCH64_CONDBR19, 280) | |
135 | ||
136 | /* 281 unused */ | |
137 | ||
138 | /* B: ((S+A-P) >> 2) & 0x3ffffff. */ | |
139 | RELOC_NUMBER (R_AARCH64_JUMP26, 282) | |
140 | ||
141 | /* BL: ((S+A-P) >> 2) & 0x3ffffff. */ | |
142 | RELOC_NUMBER (R_AARCH64_CALL26, 283) | |
143 | ||
144 | /* LD/ST16: (S+A) & 0xffe */ | |
145 | RELOC_NUMBER (R_AARCH64_LDST16_ABS_LO12_NC, 284) | |
146 | ||
147 | /* LD/ST32: (S+A) & 0xffc */ | |
148 | RELOC_NUMBER (R_AARCH64_LDST32_ABS_LO12_NC, 285) | |
149 | ||
150 | /* LD/ST64: (S+A) & 0xff8 */ | |
151 | RELOC_NUMBER (R_AARCH64_LDST64_ABS_LO12_NC, 286) | |
152 | ||
153 | /* LD/ST128: (S+A) & 0xff0 */ | |
154 | RELOC_NUMBER (R_AARCH64_LDST128_ABS_LO12_NC, 299) | |
155 | ||
156 | RELOC_NUMBER (R_AARCH64_ADR_GOT_PAGE, 311) | |
157 | RELOC_NUMBER (R_AARCH64_LD64_GOT_LO12_NC, 312) | |
158 | ||
159 | FAKE_RELOC (R_AARCH64_static_max, 313) | |
160 | ||
161 | FAKE_RELOC (R_AARCH64_tls_min, 512) | |
162 | RELOC_NUMBER (R_AARCH64_TLSGD_ADR_PAGE21, 513) | |
163 | RELOC_NUMBER (R_AARCH64_TLSGD_ADD_LO12_NC, 514) | |
164 | RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G1, 539) | |
165 | RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC, 540) | |
166 | RELOC_NUMBER (R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21, 541) | |
167 | RELOC_NUMBER (R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC, 542) | |
168 | RELOC_NUMBER (R_AARCH64_TLSIE_LD_GOTTPREL_PREL19, 543) | |
169 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G2, 544) | |
170 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1, 545) | |
171 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1_NC, 546) | |
172 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0, 547) | |
173 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0_NC, 548) | |
174 | RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_HI12, 549) | |
175 | RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12, 550) | |
176 | RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12_NC, 551) | |
177 | FAKE_RELOC (R_AARCH64_tls_max, 552) | |
178 | ||
179 | FAKE_RELOC (R_AARCH64_tlsdesc_min, 560) | |
180 | RELOC_NUMBER (R_AARCH64_TLSDESC_LD64_PREL19, 560) | |
181 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PREL21, 561) | |
182 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PAGE, 562) | |
183 | RELOC_NUMBER (R_AARCH64_TLSDESC_LD64_LO12_NC, 563) | |
184 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADD_LO12_NC, 564) | |
185 | RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G1, 565) | |
186 | RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G0_NC, 566) | |
187 | RELOC_NUMBER (R_AARCH64_TLSDESC_LDR, 567) | |
188 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADD, 568) | |
189 | RELOC_NUMBER (R_AARCH64_TLSDESC_CALL, 569) | |
190 | FAKE_RELOC (R_AARCH64_tlsdesc_max, 570) | |
191 | ||
192 | /* Dynamic relocations */ | |
193 | FAKE_RELOC (R_AARCH64_dyn_min, 1024) | |
194 | ||
195 | /* Copy symbol at runtime. */ | |
196 | RELOC_NUMBER (R_AARCH64_COPY, 1024) | |
197 | ||
198 | /* Create GOT entry. */ | |
199 | RELOC_NUMBER (R_AARCH64_GLOB_DAT, 1025) | |
200 | ||
201 | /* Create PLT entry. */ | |
202 | RELOC_NUMBER (R_AARCH64_JUMP_SLOT, 1026) | |
203 | ||
204 | /* Adjust by program base. */ | |
205 | RELOC_NUMBER (R_AARCH64_RELATIVE, 1027) | |
206 | RELOC_NUMBER (R_AARCH64_TLS_DTPMOD64, 1028) | |
207 | RELOC_NUMBER (R_AARCH64_TLS_DTPREL64, 1029) | |
208 | RELOC_NUMBER (R_AARCH64_TLS_TPREL64, 1030) | |
209 | RELOC_NUMBER (R_AARCH64_TLSDESC, 1031) | |
210 | FAKE_RELOC (R_AARCH64_dyn_max, 1032) | |
211 | ||
212 | END_RELOC_NUMBERS (R_AARCH64_end) | |
213 | ||
214 | #endif /* _ELF_AARCH64_H */ |