1 //===-- HexagonELFObjectWriter.cpp - Hexagon Target Descriptions ----------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "Hexagon.h" 11 #include "MCTargetDesc/HexagonFixupKinds.h" 12 #include "llvm/MC/MCAssembler.h" 13 #include "llvm/MC/MCELFObjectWriter.h" 14 #include "llvm/Support/Debug.h" 15 #include "llvm/Support/raw_ostream.h" 16 17 #define DEBUG_TYPE "hexagon-elf-writer" 18 19 using namespace llvm; 20 using namespace Hexagon; 21 22 namespace { 23 24 class HexagonELFObjectWriter : public MCELFObjectTargetWriter { 25 private: 26 StringRef CPU; 27 28 public: 29 HexagonELFObjectWriter(uint8_t OSABI, StringRef C); 30 31 unsigned GetRelocType(MCValue const &Target, MCFixup const &Fixup, 32 bool IsPCRel) const override; 33 }; 34 } 35 36 HexagonELFObjectWriter::HexagonELFObjectWriter(uint8_t OSABI, StringRef C) 37 : MCELFObjectTargetWriter(/*Is64bit*/ false, OSABI, ELF::EM_HEXAGON, 38 /*HasRelocationAddend*/ true), 39 CPU(C) {} 40 41 unsigned HexagonELFObjectWriter::GetRelocType(MCValue const & /*Target*/, 42 MCFixup const &Fixup, 43 bool IsPCRel) const { 44 switch ((unsigned)Fixup.getKind()) { 45 default: 46 DEBUG(dbgs() << "unrecognized relocation " << Fixup.getKind() << "\n"); 47 llvm_unreachable("Unimplemented Fixup kind!"); 48 return ELF::R_HEX_NONE; 49 case FK_Data_4: 50 return (IsPCRel) ? ELF::R_HEX_32_PCREL : ELF::R_HEX_32; 51 case FK_PCRel_4: 52 return ELF::R_HEX_32_PCREL; 53 case FK_Data_2: 54 return ELF::R_HEX_16; 55 case FK_Data_1: 56 return ELF::R_HEX_8; 57 case fixup_Hexagon_B22_PCREL: 58 return ELF::R_HEX_B22_PCREL; 59 case fixup_Hexagon_B15_PCREL: 60 return ELF::R_HEX_B15_PCREL; 61 case fixup_Hexagon_B7_PCREL: 62 return ELF::R_HEX_B7_PCREL; 63 case fixup_Hexagon_LO16: 64 return ELF::R_HEX_LO16; 65 case fixup_Hexagon_HI16: 66 return ELF::R_HEX_HI16; 67 case fixup_Hexagon_32: 68 return ELF::R_HEX_32; 69 case fixup_Hexagon_16: 70 return ELF::R_HEX_16; 71 case fixup_Hexagon_8: 72 return ELF::R_HEX_8; 73 case fixup_Hexagon_GPREL16_0: 74 return ELF::R_HEX_GPREL16_0; 75 case fixup_Hexagon_GPREL16_1: 76 return ELF::R_HEX_GPREL16_1; 77 case fixup_Hexagon_GPREL16_2: 78 return ELF::R_HEX_GPREL16_2; 79 case fixup_Hexagon_GPREL16_3: 80 return ELF::R_HEX_GPREL16_3; 81 case fixup_Hexagon_HL16: 82 return ELF::R_HEX_HL16; 83 case fixup_Hexagon_B13_PCREL: 84 return ELF::R_HEX_B13_PCREL; 85 case fixup_Hexagon_B9_PCREL: 86 return ELF::R_HEX_B9_PCREL; 87 case fixup_Hexagon_B32_PCREL_X: 88 return ELF::R_HEX_B32_PCREL_X; 89 case fixup_Hexagon_32_6_X: 90 return ELF::R_HEX_32_6_X; 91 case fixup_Hexagon_B22_PCREL_X: 92 return ELF::R_HEX_B22_PCREL_X; 93 case fixup_Hexagon_B15_PCREL_X: 94 return ELF::R_HEX_B15_PCREL_X; 95 case fixup_Hexagon_B13_PCREL_X: 96 return ELF::R_HEX_B13_PCREL_X; 97 case fixup_Hexagon_B9_PCREL_X: 98 return ELF::R_HEX_B9_PCREL_X; 99 case fixup_Hexagon_B7_PCREL_X: 100 return ELF::R_HEX_B7_PCREL_X; 101 case fixup_Hexagon_16_X: 102 return ELF::R_HEX_16_X; 103 case fixup_Hexagon_12_X: 104 return ELF::R_HEX_12_X; 105 case fixup_Hexagon_11_X: 106 return ELF::R_HEX_11_X; 107 case fixup_Hexagon_10_X: 108 return ELF::R_HEX_10_X; 109 case fixup_Hexagon_9_X: 110 return ELF::R_HEX_9_X; 111 case fixup_Hexagon_8_X: 112 return ELF::R_HEX_8_X; 113 case fixup_Hexagon_7_X: 114 return ELF::R_HEX_7_X; 115 case fixup_Hexagon_6_X: 116 return ELF::R_HEX_6_X; 117 case fixup_Hexagon_32_PCREL: 118 return ELF::R_HEX_32_PCREL; 119 case fixup_Hexagon_COPY: 120 return ELF::R_HEX_COPY; 121 case fixup_Hexagon_GLOB_DAT: 122 return ELF::R_HEX_GLOB_DAT; 123 case fixup_Hexagon_JMP_SLOT: 124 return ELF::R_HEX_JMP_SLOT; 125 case fixup_Hexagon_RELATIVE: 126 return ELF::R_HEX_RELATIVE; 127 case fixup_Hexagon_PLT_B22_PCREL: 128 return ELF::R_HEX_PLT_B22_PCREL; 129 case fixup_Hexagon_GOTREL_LO16: 130 return ELF::R_HEX_GOTREL_LO16; 131 case fixup_Hexagon_GOTREL_HI16: 132 return ELF::R_HEX_GOTREL_HI16; 133 case fixup_Hexagon_GOTREL_32: 134 return ELF::R_HEX_GOTREL_32; 135 case fixup_Hexagon_GOT_LO16: 136 return ELF::R_HEX_GOT_LO16; 137 case fixup_Hexagon_GOT_HI16: 138 return ELF::R_HEX_GOT_HI16; 139 case fixup_Hexagon_GOT_32: 140 return ELF::R_HEX_GOT_32; 141 case fixup_Hexagon_GOT_16: 142 return ELF::R_HEX_GOT_16; 143 case fixup_Hexagon_DTPMOD_32: 144 return ELF::R_HEX_DTPMOD_32; 145 case fixup_Hexagon_DTPREL_LO16: 146 return ELF::R_HEX_DTPREL_LO16; 147 case fixup_Hexagon_DTPREL_HI16: 148 return ELF::R_HEX_DTPREL_HI16; 149 case fixup_Hexagon_DTPREL_32: 150 return ELF::R_HEX_DTPREL_32; 151 case fixup_Hexagon_DTPREL_16: 152 return ELF::R_HEX_DTPREL_16; 153 case fixup_Hexagon_GD_PLT_B22_PCREL: 154 return ELF::R_HEX_GD_PLT_B22_PCREL; 155 case fixup_Hexagon_LD_PLT_B22_PCREL: 156 return ELF::R_HEX_LD_PLT_B22_PCREL; 157 case fixup_Hexagon_GD_GOT_LO16: 158 return ELF::R_HEX_GD_GOT_LO16; 159 case fixup_Hexagon_GD_GOT_HI16: 160 return ELF::R_HEX_GD_GOT_HI16; 161 case fixup_Hexagon_GD_GOT_32: 162 return ELF::R_HEX_GD_GOT_32; 163 case fixup_Hexagon_GD_GOT_16: 164 return ELF::R_HEX_GD_GOT_16; 165 case fixup_Hexagon_LD_GOT_LO16: 166 return ELF::R_HEX_LD_GOT_LO16; 167 case fixup_Hexagon_LD_GOT_HI16: 168 return ELF::R_HEX_LD_GOT_HI16; 169 case fixup_Hexagon_LD_GOT_32: 170 return ELF::R_HEX_LD_GOT_32; 171 case fixup_Hexagon_LD_GOT_16: 172 return ELF::R_HEX_LD_GOT_16; 173 case fixup_Hexagon_IE_LO16: 174 return ELF::R_HEX_IE_LO16; 175 case fixup_Hexagon_IE_HI16: 176 return ELF::R_HEX_IE_HI16; 177 case fixup_Hexagon_IE_32: 178 return ELF::R_HEX_IE_32; 179 case fixup_Hexagon_IE_GOT_LO16: 180 return ELF::R_HEX_IE_GOT_LO16; 181 case fixup_Hexagon_IE_GOT_HI16: 182 return ELF::R_HEX_IE_GOT_HI16; 183 case fixup_Hexagon_IE_GOT_32: 184 return ELF::R_HEX_IE_GOT_32; 185 case fixup_Hexagon_IE_GOT_16: 186 return ELF::R_HEX_IE_GOT_16; 187 case fixup_Hexagon_TPREL_LO16: 188 return ELF::R_HEX_TPREL_LO16; 189 case fixup_Hexagon_TPREL_HI16: 190 return ELF::R_HEX_TPREL_HI16; 191 case fixup_Hexagon_TPREL_32: 192 return ELF::R_HEX_TPREL_32; 193 case fixup_Hexagon_TPREL_16: 194 return ELF::R_HEX_TPREL_16; 195 case fixup_Hexagon_6_PCREL_X: 196 return ELF::R_HEX_6_PCREL_X; 197 case fixup_Hexagon_GOTREL_32_6_X: 198 return ELF::R_HEX_GOTREL_32_6_X; 199 case fixup_Hexagon_GOTREL_16_X: 200 return ELF::R_HEX_GOTREL_16_X; 201 case fixup_Hexagon_GOTREL_11_X: 202 return ELF::R_HEX_GOTREL_11_X; 203 case fixup_Hexagon_GOT_32_6_X: 204 return ELF::R_HEX_GOT_32_6_X; 205 case fixup_Hexagon_GOT_16_X: 206 return ELF::R_HEX_GOT_16_X; 207 case fixup_Hexagon_GOT_11_X: 208 return ELF::R_HEX_GOT_11_X; 209 case fixup_Hexagon_DTPREL_32_6_X: 210 return ELF::R_HEX_DTPREL_32_6_X; 211 case fixup_Hexagon_DTPREL_16_X: 212 return ELF::R_HEX_DTPREL_16_X; 213 case fixup_Hexagon_DTPREL_11_X: 214 return ELF::R_HEX_DTPREL_11_X; 215 case fixup_Hexagon_GD_GOT_32_6_X: 216 return ELF::R_HEX_GD_GOT_32_6_X; 217 case fixup_Hexagon_GD_GOT_16_X: 218 return ELF::R_HEX_GD_GOT_16_X; 219 case fixup_Hexagon_GD_GOT_11_X: 220 return ELF::R_HEX_GD_GOT_11_X; 221 case fixup_Hexagon_LD_GOT_32_6_X: 222 return ELF::R_HEX_LD_GOT_32_6_X; 223 case fixup_Hexagon_LD_GOT_16_X: 224 return ELF::R_HEX_LD_GOT_16_X; 225 case fixup_Hexagon_LD_GOT_11_X: 226 return ELF::R_HEX_LD_GOT_11_X; 227 case fixup_Hexagon_IE_32_6_X: 228 return ELF::R_HEX_IE_32_6_X; 229 case fixup_Hexagon_IE_16_X: 230 return ELF::R_HEX_IE_16_X; 231 case fixup_Hexagon_IE_GOT_32_6_X: 232 return ELF::R_HEX_IE_GOT_32_6_X; 233 case fixup_Hexagon_IE_GOT_16_X: 234 return ELF::R_HEX_IE_GOT_16_X; 235 case fixup_Hexagon_IE_GOT_11_X: 236 return ELF::R_HEX_IE_GOT_11_X; 237 case fixup_Hexagon_TPREL_32_6_X: 238 return ELF::R_HEX_TPREL_32_6_X; 239 case fixup_Hexagon_TPREL_16_X: 240 return ELF::R_HEX_TPREL_16_X; 241 case fixup_Hexagon_TPREL_11_X: 242 return ELF::R_HEX_TPREL_11_X; 243 } 244 } 245 246 MCObjectWriter *llvm::createHexagonELFObjectWriter(raw_pwrite_stream &OS, 247 uint8_t OSABI, 248 StringRef CPU) { 249 MCELFObjectTargetWriter *MOTW = new HexagonELFObjectWriter(OSABI, CPU); 250 return createELFObjectWriter(MOTW, OS, /*IsLittleEndian*/ true); 251 } 252
