| //===-- HexagonELFObjectWriter.cpp - Hexagon Target Descriptions ----------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "MCTargetDesc/HexagonFixupKinds.h" |
| #include "MCTargetDesc/HexagonMCTargetDesc.h" |
| #include "llvm/MC/MCAssembler.h" |
| #include "llvm/MC/MCELFObjectWriter.h" |
| #include "llvm/MC/MCObjectWriter.h" |
| #include "llvm/MC/MCValue.h" |
| #include "llvm/Support/Debug.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| #define DEBUG_TYPE "hexagon-elf-writer" |
| |
| using namespace llvm; |
| using namespace Hexagon; |
| |
| namespace { |
| |
| class HexagonELFObjectWriter : public MCELFObjectTargetWriter { |
| private: |
| StringRef CPU; |
| |
| public: |
| HexagonELFObjectWriter(uint8_t OSABI, StringRef C); |
| |
| unsigned getRelocType(MCContext &Ctx, MCValue const &Target, |
| MCFixup const &Fixup, bool IsPCRel) const override; |
| }; |
| } |
| |
| HexagonELFObjectWriter::HexagonELFObjectWriter(uint8_t OSABI, StringRef C) |
| : MCELFObjectTargetWriter(/*Is64bit*/ false, OSABI, ELF::EM_HEXAGON, |
| /*HasRelocationAddend*/ true), |
| CPU(C) {} |
| |
| unsigned HexagonELFObjectWriter::getRelocType(MCContext &Ctx, |
| MCValue const &Target, |
| MCFixup const &Fixup, |
| bool IsPCRel) const { |
| MCSymbolRefExpr::VariantKind Variant = Target.getAccessVariant(); |
| switch (Fixup.getTargetKind()) { |
| default: |
| report_fatal_error("Unrecognized relocation type"); |
| break; |
| case FK_Data_4: |
| switch(Variant) { |
| case MCSymbolRefExpr::VariantKind::VK_DTPREL: |
| return ELF::R_HEX_DTPREL_32; |
| case MCSymbolRefExpr::VariantKind::VK_GOT: |
| return ELF::R_HEX_GOT_32; |
| case MCSymbolRefExpr::VariantKind::VK_GOTREL: |
| return ELF::R_HEX_GOTREL_32; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_GD_GOT: |
| return ELF::R_HEX_GD_GOT_32; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_IE: |
| return ELF::R_HEX_IE_32; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_IE_GOT: |
| return ELF::R_HEX_IE_GOT_32; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_LD_GOT: |
| return ELF::R_HEX_LD_GOT_32; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_PCREL: |
| return ELF::R_HEX_32_PCREL; |
| case MCSymbolRefExpr::VariantKind::VK_TPREL: |
| return ELF::R_HEX_TPREL_32; |
| case MCSymbolRefExpr::VariantKind::VK_None: |
| return IsPCRel ? ELF::R_HEX_32_PCREL : ELF::R_HEX_32; |
| default: |
| report_fatal_error("Unrecognized variant type"); |
| }; |
| case FK_PCRel_4: |
| return ELF::R_HEX_32_PCREL; |
| case FK_Data_2: |
| switch(Variant) { |
| case MCSymbolRefExpr::VariantKind::VK_DTPREL: |
| return ELF::R_HEX_DTPREL_16; |
| case MCSymbolRefExpr::VariantKind::VK_GOT: |
| return ELF::R_HEX_GOT_16; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_GD_GOT: |
| return ELF::R_HEX_GD_GOT_16; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_IE_GOT: |
| return ELF::R_HEX_IE_GOT_16; |
| case MCSymbolRefExpr::VariantKind::VK_Hexagon_LD_GOT: |
| return ELF::R_HEX_LD_GOT_16; |
| case MCSymbolRefExpr::VariantKind::VK_TPREL: |
| return ELF::R_HEX_TPREL_16; |
| case MCSymbolRefExpr::VariantKind::VK_None: |
| return ELF::R_HEX_16; |
| default: |
| report_fatal_error("Unrecognized variant type"); |
| }; |
| case FK_Data_1: |
| return ELF::R_HEX_8; |
| case fixup_Hexagon_B22_PCREL: |
| return ELF::R_HEX_B22_PCREL; |
| case fixup_Hexagon_B15_PCREL: |
| return ELF::R_HEX_B15_PCREL; |
| case fixup_Hexagon_B7_PCREL: |
| return ELF::R_HEX_B7_PCREL; |
| case fixup_Hexagon_LO16: |
| return ELF::R_HEX_LO16; |
| case fixup_Hexagon_HI16: |
| return ELF::R_HEX_HI16; |
| case fixup_Hexagon_32: |
| return ELF::R_HEX_32; |
| case fixup_Hexagon_16: |
| return ELF::R_HEX_16; |
| case fixup_Hexagon_8: |
| return ELF::R_HEX_8; |
| case fixup_Hexagon_GPREL16_0: |
| return ELF::R_HEX_GPREL16_0; |
| case fixup_Hexagon_GPREL16_1: |
| return ELF::R_HEX_GPREL16_1; |
| case fixup_Hexagon_GPREL16_2: |
| return ELF::R_HEX_GPREL16_2; |
| case fixup_Hexagon_GPREL16_3: |
| return ELF::R_HEX_GPREL16_3; |
| case fixup_Hexagon_HL16: |
| return ELF::R_HEX_HL16; |
| case fixup_Hexagon_B13_PCREL: |
| return ELF::R_HEX_B13_PCREL; |
| case fixup_Hexagon_B9_PCREL: |
| return ELF::R_HEX_B9_PCREL; |
| case fixup_Hexagon_B32_PCREL_X: |
| return ELF::R_HEX_B32_PCREL_X; |
| case fixup_Hexagon_32_6_X: |
| return ELF::R_HEX_32_6_X; |
| case fixup_Hexagon_B22_PCREL_X: |
| return ELF::R_HEX_B22_PCREL_X; |
| case fixup_Hexagon_B15_PCREL_X: |
| return ELF::R_HEX_B15_PCREL_X; |
| case fixup_Hexagon_B13_PCREL_X: |
| return ELF::R_HEX_B13_PCREL_X; |
| case fixup_Hexagon_B9_PCREL_X: |
| return ELF::R_HEX_B9_PCREL_X; |
| case fixup_Hexagon_B7_PCREL_X: |
| return ELF::R_HEX_B7_PCREL_X; |
| case fixup_Hexagon_16_X: |
| return ELF::R_HEX_16_X; |
| case fixup_Hexagon_12_X: |
| return ELF::R_HEX_12_X; |
| case fixup_Hexagon_11_X: |
| return ELF::R_HEX_11_X; |
| case fixup_Hexagon_10_X: |
| return ELF::R_HEX_10_X; |
| case fixup_Hexagon_9_X: |
| return ELF::R_HEX_9_X; |
| case fixup_Hexagon_8_X: |
| return ELF::R_HEX_8_X; |
| case fixup_Hexagon_7_X: |
| return ELF::R_HEX_7_X; |
| case fixup_Hexagon_6_X: |
| return ELF::R_HEX_6_X; |
| case fixup_Hexagon_32_PCREL: |
| return ELF::R_HEX_32_PCREL; |
| case fixup_Hexagon_COPY: |
| return ELF::R_HEX_COPY; |
| case fixup_Hexagon_GLOB_DAT: |
| return ELF::R_HEX_GLOB_DAT; |
| case fixup_Hexagon_JMP_SLOT: |
| return ELF::R_HEX_JMP_SLOT; |
| case fixup_Hexagon_RELATIVE: |
| return ELF::R_HEX_RELATIVE; |
| case fixup_Hexagon_PLT_B22_PCREL: |
| return ELF::R_HEX_PLT_B22_PCREL; |
| case fixup_Hexagon_GOTREL_LO16: |
| return ELF::R_HEX_GOTREL_LO16; |
| case fixup_Hexagon_GOTREL_HI16: |
| return ELF::R_HEX_GOTREL_HI16; |
| case fixup_Hexagon_GOTREL_32: |
| return ELF::R_HEX_GOTREL_32; |
| case fixup_Hexagon_GOT_LO16: |
| return ELF::R_HEX_GOT_LO16; |
| case fixup_Hexagon_GOT_HI16: |
| return ELF::R_HEX_GOT_HI16; |
| case fixup_Hexagon_GOT_32: |
| return ELF::R_HEX_GOT_32; |
| case fixup_Hexagon_GOT_16: |
| return ELF::R_HEX_GOT_16; |
| case fixup_Hexagon_DTPMOD_32: |
| return ELF::R_HEX_DTPMOD_32; |
| case fixup_Hexagon_DTPREL_LO16: |
| return ELF::R_HEX_DTPREL_LO16; |
| case fixup_Hexagon_DTPREL_HI16: |
| return ELF::R_HEX_DTPREL_HI16; |
| case fixup_Hexagon_DTPREL_32: |
| return ELF::R_HEX_DTPREL_32; |
| case fixup_Hexagon_DTPREL_16: |
| return ELF::R_HEX_DTPREL_16; |
| case fixup_Hexagon_GD_PLT_B22_PCREL: |
| return ELF::R_HEX_GD_PLT_B22_PCREL; |
| case fixup_Hexagon_LD_PLT_B22_PCREL: |
| return ELF::R_HEX_LD_PLT_B22_PCREL; |
| case fixup_Hexagon_GD_GOT_LO16: |
| return ELF::R_HEX_GD_GOT_LO16; |
| case fixup_Hexagon_GD_GOT_HI16: |
| return ELF::R_HEX_GD_GOT_HI16; |
| case fixup_Hexagon_GD_GOT_32: |
| return ELF::R_HEX_GD_GOT_32; |
| case fixup_Hexagon_GD_GOT_16: |
| return ELF::R_HEX_GD_GOT_16; |
| case fixup_Hexagon_LD_GOT_LO16: |
| return ELF::R_HEX_LD_GOT_LO16; |
| case fixup_Hexagon_LD_GOT_HI16: |
| return ELF::R_HEX_LD_GOT_HI16; |
| case fixup_Hexagon_LD_GOT_32: |
| return ELF::R_HEX_LD_GOT_32; |
| case fixup_Hexagon_LD_GOT_16: |
| return ELF::R_HEX_LD_GOT_16; |
| case fixup_Hexagon_IE_LO16: |
| return ELF::R_HEX_IE_LO16; |
| case fixup_Hexagon_IE_HI16: |
| return ELF::R_HEX_IE_HI16; |
| case fixup_Hexagon_IE_32: |
| return ELF::R_HEX_IE_32; |
| case fixup_Hexagon_IE_GOT_LO16: |
| return ELF::R_HEX_IE_GOT_LO16; |
| case fixup_Hexagon_IE_GOT_HI16: |
| return ELF::R_HEX_IE_GOT_HI16; |
| case fixup_Hexagon_IE_GOT_32: |
| return ELF::R_HEX_IE_GOT_32; |
| case fixup_Hexagon_IE_GOT_16: |
| return ELF::R_HEX_IE_GOT_16; |
| case fixup_Hexagon_TPREL_LO16: |
| return ELF::R_HEX_TPREL_LO16; |
| case fixup_Hexagon_TPREL_HI16: |
| return ELF::R_HEX_TPREL_HI16; |
| case fixup_Hexagon_TPREL_32: |
| return ELF::R_HEX_TPREL_32; |
| case fixup_Hexagon_TPREL_16: |
| return ELF::R_HEX_TPREL_16; |
| case fixup_Hexagon_6_PCREL_X: |
| return ELF::R_HEX_6_PCREL_X; |
| case fixup_Hexagon_GOTREL_32_6_X: |
| return ELF::R_HEX_GOTREL_32_6_X; |
| case fixup_Hexagon_GOTREL_16_X: |
| return ELF::R_HEX_GOTREL_16_X; |
| case fixup_Hexagon_GOTREL_11_X: |
| return ELF::R_HEX_GOTREL_11_X; |
| case fixup_Hexagon_GOT_32_6_X: |
| return ELF::R_HEX_GOT_32_6_X; |
| case fixup_Hexagon_GOT_16_X: |
| return ELF::R_HEX_GOT_16_X; |
| case fixup_Hexagon_GOT_11_X: |
| return ELF::R_HEX_GOT_11_X; |
| case fixup_Hexagon_DTPREL_32_6_X: |
| return ELF::R_HEX_DTPREL_32_6_X; |
| case fixup_Hexagon_DTPREL_16_X: |
| return ELF::R_HEX_DTPREL_16_X; |
| case fixup_Hexagon_DTPREL_11_X: |
| return ELF::R_HEX_DTPREL_11_X; |
| case fixup_Hexagon_GD_GOT_32_6_X: |
| return ELF::R_HEX_GD_GOT_32_6_X; |
| case fixup_Hexagon_GD_GOT_16_X: |
| return ELF::R_HEX_GD_GOT_16_X; |
| case fixup_Hexagon_GD_GOT_11_X: |
| return ELF::R_HEX_GD_GOT_11_X; |
| case fixup_Hexagon_LD_GOT_32_6_X: |
| return ELF::R_HEX_LD_GOT_32_6_X; |
| case fixup_Hexagon_LD_GOT_16_X: |
| return ELF::R_HEX_LD_GOT_16_X; |
| case fixup_Hexagon_LD_GOT_11_X: |
| return ELF::R_HEX_LD_GOT_11_X; |
| case fixup_Hexagon_IE_32_6_X: |
| return ELF::R_HEX_IE_32_6_X; |
| case fixup_Hexagon_IE_16_X: |
| return ELF::R_HEX_IE_16_X; |
| case fixup_Hexagon_IE_GOT_32_6_X: |
| return ELF::R_HEX_IE_GOT_32_6_X; |
| case fixup_Hexagon_IE_GOT_16_X: |
| return ELF::R_HEX_IE_GOT_16_X; |
| case fixup_Hexagon_IE_GOT_11_X: |
| return ELF::R_HEX_IE_GOT_11_X; |
| case fixup_Hexagon_TPREL_32_6_X: |
| return ELF::R_HEX_TPREL_32_6_X; |
| case fixup_Hexagon_TPREL_16_X: |
| return ELF::R_HEX_TPREL_16_X; |
| case fixup_Hexagon_TPREL_11_X: |
| return ELF::R_HEX_TPREL_11_X; |
| case fixup_Hexagon_23_REG: |
| return ELF::R_HEX_23_REG; |
| case fixup_Hexagon_27_REG: |
| return ELF::R_HEX_27_REG; |
| case fixup_Hexagon_GD_PLT_B22_PCREL_X: |
| return ELF::R_HEX_GD_PLT_B22_PCREL_X; |
| case fixup_Hexagon_GD_PLT_B32_PCREL_X: |
| return ELF::R_HEX_GD_PLT_B32_PCREL_X; |
| case fixup_Hexagon_LD_PLT_B22_PCREL_X: |
| return ELF::R_HEX_LD_PLT_B22_PCREL_X; |
| case fixup_Hexagon_LD_PLT_B32_PCREL_X: |
| return ELF::R_HEX_LD_PLT_B32_PCREL_X; |
| } |
| } |
| |
| std::unique_ptr<MCObjectTargetWriter> |
| llvm::createHexagonELFObjectWriter(uint8_t OSABI, StringRef CPU) { |
| return std::make_unique<HexagonELFObjectWriter>(OSABI, CPU); |
| } |
