Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 14 | pmbaty | 1 | //===-- riscv.h - Generic JITLink riscv edge kinds, utilities -*- C++ -*-===// |
| 2 | // |
||
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
||
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
||
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
||
| 6 | // |
||
| 7 | //===----------------------------------------------------------------------===// |
||
| 8 | // |
||
| 9 | // Generic utilities for graphs representing riscv objects. |
||
| 10 | // |
||
| 11 | //===----------------------------------------------------------------------===// |
||
| 12 | |||
| 13 | #ifndef LLVM_EXECUTIONENGINE_JITLINK_RISCV_H |
||
| 14 | #define LLVM_EXECUTIONENGINE_JITLINK_RISCV_H |
||
| 15 | |||
| 16 | #include "llvm/ExecutionEngine/JITLink/JITLink.h" |
||
| 17 | |||
| 18 | namespace llvm { |
||
| 19 | namespace jitlink { |
||
| 20 | namespace riscv { |
||
| 21 | |||
| 22 | /// Represents riscv fixups. Ordered in the same way as the relocations in |
||
| 23 | /// include/llvm/BinaryFormat/ELFRelocs/RISCV.def. |
||
| 24 | enum EdgeKind_riscv : Edge::Kind { |
||
| 25 | |||
| 26 | // TODO: Capture and replace to generic fixups |
||
| 27 | /// A plain 32-bit pointer value relocation |
||
| 28 | /// |
||
| 29 | /// Fixup expression: |
||
| 30 | /// Fixup <= Target + Addend : uint32 |
||
| 31 | /// |
||
| 32 | R_RISCV_32 = Edge::FirstRelocation, |
||
| 33 | |||
| 34 | /// A plain 64-bit pointer value relocation |
||
| 35 | /// |
||
| 36 | /// Fixup expression: |
||
| 37 | /// Fixup <- Target + Addend : uint32 |
||
| 38 | /// |
||
| 39 | R_RISCV_64, |
||
| 40 | |||
| 41 | /// PC-relative branch pointer value relocation |
||
| 42 | /// |
||
| 43 | /// Fixup expression: |
||
| 44 | /// Fixup <- (Target - Fixup + Addend) |
||
| 45 | /// |
||
| 46 | R_RISCV_BRANCH, |
||
| 47 | |||
| 48 | /// High 20 bits of PC-relative jump pointer value relocation |
||
| 49 | /// |
||
| 50 | /// Fixup expression: |
||
| 51 | /// Fixup <- Target - Fixup + Addend |
||
| 52 | /// |
||
| 53 | R_RISCV_JAL, |
||
| 54 | |||
| 55 | /// PC relative call |
||
| 56 | /// |
||
| 57 | /// Fixup expression: |
||
| 58 | /// Fixup <- (Target - Fixup + Addend) |
||
| 59 | R_RISCV_CALL, |
||
| 60 | |||
| 61 | /// PC relative call by PLT |
||
| 62 | /// |
||
| 63 | /// Fixup expression: |
||
| 64 | /// Fixup <- (Target - Fixup + Addend) |
||
| 65 | R_RISCV_CALL_PLT, |
||
| 66 | |||
| 67 | /// PC relative GOT offset |
||
| 68 | /// |
||
| 69 | /// Fixup expression: |
||
| 70 | /// Fixup <- (GOT - Fixup + Addend) >> 12 |
||
| 71 | R_RISCV_GOT_HI20, |
||
| 72 | |||
| 73 | /// High 20 bits of PC relative relocation |
||
| 74 | /// |
||
| 75 | /// Fixup expression: |
||
| 76 | /// Fixup <- (Target - Fixup + Addend + 0x800) >> 12 |
||
| 77 | R_RISCV_PCREL_HI20, |
||
| 78 | |||
| 79 | /// Low 12 bits of PC relative relocation, used by I type instruction format |
||
| 80 | /// |
||
| 81 | /// Fixup expression: |
||
| 82 | /// Fixup <- (Target - Fixup + Addend) & 0xFFF |
||
| 83 | R_RISCV_PCREL_LO12_I, |
||
| 84 | |||
| 85 | /// Low 12 bits of PC relative relocation, used by S type instruction format |
||
| 86 | /// |
||
| 87 | /// Fixup expression: |
||
| 88 | /// Fixup <- (Target - Fixup + Addend) & 0xFFF |
||
| 89 | R_RISCV_PCREL_LO12_S, |
||
| 90 | |||
| 91 | /// High 20 bits of 32-bit pointer value relocation |
||
| 92 | /// |
||
| 93 | /// Fixup expression |
||
| 94 | /// Fixup <- (Target + Addend + 0x800) >> 12 |
||
| 95 | R_RISCV_HI20, |
||
| 96 | |||
| 97 | /// Low 12 bits of 32-bit pointer value relocation |
||
| 98 | /// |
||
| 99 | /// Fixup expression |
||
| 100 | /// Fixup <- (Target + Addend) & 0xFFF |
||
| 101 | R_RISCV_LO12_I, |
||
| 102 | |||
| 103 | /// Low 12 bits of 32-bit pointer value relocation, used by S type instruction |
||
| 104 | /// format |
||
| 105 | /// |
||
| 106 | /// Fixup expression |
||
| 107 | /// Fixup <- (Target + Addend) & 0xFFF |
||
| 108 | R_RISCV_LO12_S, |
||
| 109 | |||
| 110 | /// 8 bits label addition |
||
| 111 | /// |
||
| 112 | /// Fixup expression |
||
| 113 | /// Fixup <- (Target - *{1}Fixup + Addend) |
||
| 114 | R_RISCV_ADD8, |
||
| 115 | |||
| 116 | /// 16 bits label addition |
||
| 117 | /// |
||
| 118 | /// Fixup expression |
||
| 119 | /// Fixup <- (Target - *{2}Fixup + Addend) |
||
| 120 | R_RISCV_ADD16, |
||
| 121 | |||
| 122 | /// 32 bits label addition |
||
| 123 | /// |
||
| 124 | /// Fixup expression: |
||
| 125 | /// Fixup <- (Target - *{4}Fixup + Addend) |
||
| 126 | R_RISCV_ADD32, |
||
| 127 | |||
| 128 | /// 64 bits label addition |
||
| 129 | /// |
||
| 130 | /// Fixup expression: |
||
| 131 | /// Fixup <- (Target - *{8}Fixup + Addend) |
||
| 132 | R_RISCV_ADD64, |
||
| 133 | |||
| 134 | /// 8 bits label subtraction |
||
| 135 | /// |
||
| 136 | /// Fixup expression |
||
| 137 | /// Fixup <- (Target - *{1}Fixup - Addend) |
||
| 138 | R_RISCV_SUB8, |
||
| 139 | |||
| 140 | /// 16 bits label subtraction |
||
| 141 | /// |
||
| 142 | /// Fixup expression |
||
| 143 | /// Fixup <- (Target - *{2}Fixup - Addend) |
||
| 144 | R_RISCV_SUB16, |
||
| 145 | |||
| 146 | /// 32 bits label subtraction |
||
| 147 | /// |
||
| 148 | /// Fixup expression |
||
| 149 | /// Fixup <- (Target - *{4}Fixup - Addend) |
||
| 150 | R_RISCV_SUB32, |
||
| 151 | |||
| 152 | /// 64 bits label subtraction |
||
| 153 | /// |
||
| 154 | /// Fixup expression |
||
| 155 | /// Fixup <- (Target - *{8}Fixup - Addend) |
||
| 156 | R_RISCV_SUB64, |
||
| 157 | |||
| 158 | /// 8-bit PC-relative branch offset |
||
| 159 | /// |
||
| 160 | /// Fixup expression: |
||
| 161 | /// Fixup <- (Target - Fixup + Addend) |
||
| 162 | R_RISCV_RVC_BRANCH, |
||
| 163 | |||
| 164 | /// 11-bit PC-relative jump offset |
||
| 165 | /// |
||
| 166 | /// Fixup expression: |
||
| 167 | /// Fixup <- (Target - Fixup + Addend) |
||
| 168 | R_RISCV_RVC_JUMP, |
||
| 169 | |||
| 170 | /// 6 bits label subtraction |
||
| 171 | /// |
||
| 172 | /// Fixup expression |
||
| 173 | /// Fixup <- (Target - *{1}Fixup - Addend) |
||
| 174 | R_RISCV_SUB6, |
||
| 175 | |||
| 176 | /// Local label assignment |
||
| 177 | /// |
||
| 178 | /// Fixup expression: |
||
| 179 | /// Fixup <- (Target + Addend) |
||
| 180 | R_RISCV_SET6, |
||
| 181 | |||
| 182 | /// Local label assignment |
||
| 183 | /// |
||
| 184 | /// Fixup expression: |
||
| 185 | /// Fixup <- (Target + Addend) |
||
| 186 | R_RISCV_SET8, |
||
| 187 | |||
| 188 | /// Local label assignment |
||
| 189 | /// |
||
| 190 | /// Fixup expression: |
||
| 191 | /// Fixup <- (Target + Addend) |
||
| 192 | R_RISCV_SET16, |
||
| 193 | |||
| 194 | /// Local label assignment |
||
| 195 | /// |
||
| 196 | /// Fixup expression: |
||
| 197 | /// Fixup <- (Target + Addend) |
||
| 198 | R_RISCV_SET32, |
||
| 199 | |||
| 200 | /// 32 bits PC relative relocation |
||
| 201 | /// |
||
| 202 | /// Fixup expression: |
||
| 203 | /// Fixup <- (Target - Fixup + Addend) |
||
| 204 | R_RISCV_32_PCREL, |
||
| 205 | }; |
||
| 206 | |||
| 207 | /// Returns a string name for the given riscv edge. For debugging purposes |
||
| 208 | /// only |
||
| 209 | const char *getEdgeKindName(Edge::Kind K); |
||
| 210 | } // namespace riscv |
||
| 211 | } // namespace jitlink |
||
| 212 | } // namespace llvm |
||
| 213 | |||
| 214 | #endif |