1 //===-- RISCVTargetObjectFile.h - RISC-V Object Info ------------*- 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 #ifndef LLVM_LIB_TARGET_RISCV_RISCVTARGETOBJECTFILE_H 10 #define LLVM_LIB_TARGET_RISCV_RISCVTARGETOBJECTFILE_H 11 12 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" 13 14 namespace llvm { 15 16 /// This implementation is used for RISC-V ELF targets. 17 class RISCVELFTargetObjectFile : public TargetLoweringObjectFileELF { 18 MCSection *SmallDataSection; 19 MCSection *SmallBSSSection; 20 unsigned SSThreshold = 8; 21 22 public: 23 unsigned getTextSectionAlignment() const override; 24 25 void Initialize(MCContext &Ctx, const TargetMachine &TM) override; 26 27 /// Return true if this global address should be placed into small data/bss 28 /// section. 29 bool isGlobalInSmallSection(const GlobalObject *GO, 30 const TargetMachine &TM) const; 31 32 MCSection *SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, 33 const TargetMachine &TM) const override; 34 35 /// Return true if this constant should be placed into small data section. 36 bool isConstantInSmallSection(const DataLayout &DL, const Constant *CN) const; 37 38 MCSection *getSectionForConstant(const DataLayout &DL, SectionKind Kind, 39 const Constant *C, 40 Align &Alignment) const override; 41 42 void getModuleMetadata(Module &M) override; 43 44 bool isInSmallSection(uint64_t Size) const; 45 46 const MCExpr *getIndirectSymViaGOTPCRel(const GlobalValue *GV, 47 const MCSymbol *Sym, 48 const MCValue &MV, int64_t Offset, 49 MachineModuleInfo *MMI, 50 MCStreamer &Streamer) const override; 51 }; 52 53 } // end namespace llvm 54 55 #endif 56