1 /* RISC-V ELF support for BFD.
2 Copyright 2011-2016 Free Software Foundation, Inc.
4 Contributed by Andrew Waterman (andrew@sifive.com).
5 Based on MIPS ELF support for BFD, by Ian Lance Taylor.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; see the file COPYING3. If not,
21 see <http://www.gnu.org/licenses/>. */
23 /* This file holds definitions specific to the RISCV ELF ABI. Note
24 that most of this is not actually implemented by BFD. */
29 #include "elf/reloc-macros.h"
30 #include "libiberty.h"
32 /* Relocation types. */
33 START_RELOC_NUMBERS (elf_riscv_reloc_type)
34 /* Relocation types used by the dynamic linker. */
35 RELOC_NUMBER (R_RISCV_NONE, 0)
36 RELOC_NUMBER (R_RISCV_32, 1)
37 RELOC_NUMBER (R_RISCV_64, 2)
38 RELOC_NUMBER (R_RISCV_RELATIVE, 3)
39 RELOC_NUMBER (R_RISCV_COPY, 4)
40 RELOC_NUMBER (R_RISCV_JUMP_SLOT, 5)
41 RELOC_NUMBER (R_RISCV_TLS_DTPMOD32, 6)
42 RELOC_NUMBER (R_RISCV_TLS_DTPMOD64, 7)
43 RELOC_NUMBER (R_RISCV_TLS_DTPREL32, 8)
44 RELOC_NUMBER (R_RISCV_TLS_DTPREL64, 9)
45 RELOC_NUMBER (R_RISCV_TLS_TPREL32, 10)
46 RELOC_NUMBER (R_RISCV_TLS_TPREL64, 11)
48 /* Relocation types not used by the dynamic linker. */
49 RELOC_NUMBER (R_RISCV_BRANCH, 16)
50 RELOC_NUMBER (R_RISCV_JAL, 17)
51 RELOC_NUMBER (R_RISCV_CALL, 18)
52 RELOC_NUMBER (R_RISCV_CALL_PLT, 19)
53 RELOC_NUMBER (R_RISCV_GOT_HI20, 20)
54 RELOC_NUMBER (R_RISCV_TLS_GOT_HI20, 21)
55 RELOC_NUMBER (R_RISCV_TLS_GD_HI20, 22)
56 RELOC_NUMBER (R_RISCV_PCREL_HI20, 23)
57 RELOC_NUMBER (R_RISCV_PCREL_LO12_I, 24)
58 RELOC_NUMBER (R_RISCV_PCREL_LO12_S, 25)
59 RELOC_NUMBER (R_RISCV_HI20, 26)
60 RELOC_NUMBER (R_RISCV_LO12_I, 27)
61 RELOC_NUMBER (R_RISCV_LO12_S, 28)
62 RELOC_NUMBER (R_RISCV_TPREL_HI20, 29)
63 RELOC_NUMBER (R_RISCV_TPREL_LO12_I, 30)
64 RELOC_NUMBER (R_RISCV_TPREL_LO12_S, 31)
65 RELOC_NUMBER (R_RISCV_TPREL_ADD, 32)
66 RELOC_NUMBER (R_RISCV_ADD8, 33)
67 RELOC_NUMBER (R_RISCV_ADD16, 34)
68 RELOC_NUMBER (R_RISCV_ADD32, 35)
69 RELOC_NUMBER (R_RISCV_ADD64, 36)
70 RELOC_NUMBER (R_RISCV_SUB8, 37)
71 RELOC_NUMBER (R_RISCV_SUB16, 38)
72 RELOC_NUMBER (R_RISCV_SUB32, 39)
73 RELOC_NUMBER (R_RISCV_SUB64, 40)
74 RELOC_NUMBER (R_RISCV_GNU_VTINHERIT, 41)
75 RELOC_NUMBER (R_RISCV_GNU_VTENTRY, 42)
76 RELOC_NUMBER (R_RISCV_ALIGN, 43)
77 RELOC_NUMBER (R_RISCV_RVC_BRANCH, 44)
78 RELOC_NUMBER (R_RISCV_RVC_JUMP, 45)
79 RELOC_NUMBER (R_RISCV_RVC_LUI, 46)
80 RELOC_NUMBER (R_RISCV_GPREL_I, 47)
81 RELOC_NUMBER (R_RISCV_GPREL_S, 48)
82 RELOC_NUMBER (R_RISCV_TPREL_I, 49)
83 RELOC_NUMBER (R_RISCV_TPREL_S, 50)
84 RELOC_NUMBER (R_RISCV_RELAX, 51)
85 RELOC_NUMBER (R_RISCV_SUB6, 52)
86 RELOC_NUMBER (R_RISCV_SET6, 53)
87 RELOC_NUMBER (R_RISCV_SET8, 54)
88 RELOC_NUMBER (R_RISCV_SET16, 55)
89 RELOC_NUMBER (R_RISCV_SET32, 56)
90 END_RELOC_NUMBERS (R_RISCV_max)
92 /* Processor specific flags for the ELF header e_flags field. */
94 /* File may contain compressed instructions. */
95 #define EF_RISCV_RVC 0x0001
97 /* Which floating-point ABI a file uses. */
98 #define EF_RISCV_FLOAT_ABI 0x0006
100 /* File uses the soft-float ABI. */
101 #define EF_RISCV_FLOAT_ABI_SOFT 0x0000
103 /* File uses the single-float ABI. */
104 #define EF_RISCV_FLOAT_ABI_SINGLE 0x0002
106 /* File uses the double-float ABI. */
107 #define EF_RISCV_FLOAT_ABI_DOUBLE 0x0004
109 /* File uses the quad-float ABI. */
110 #define EF_RISCV_FLOAT_ABI_QUAD 0x0006
112 #endif /* _ELF_RISCV_H */