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 *SmallRODataSection; 20 MCSection *SmallROData4Section; 21 MCSection *SmallROData8Section; 22 MCSection *SmallROData16Section; 23 MCSection *SmallROData32Section; 24 MCSection *SmallBSSSection; 25 unsigned SSThreshold = 8; 26 27 public: 28 unsigned getTextSectionAlignment() const override; 29 30 void Initialize(MCContext &Ctx, const TargetMachine &TM) override; 31 32 /// Return true if this global address should be placed into small data/bss 33 /// section. 34 bool isGlobalInSmallSection(const GlobalObject *GO, 35 const TargetMachine &TM) const; 36 37 MCSection *SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, 38 const TargetMachine &TM) const override; 39 40 /// Return true if this constant should be placed into small data section. 41 bool isConstantInSmallSection(const DataLayout &DL, const Constant *CN) const; 42 43 MCSection *getSectionForConstant(const DataLayout &DL, SectionKind Kind, 44 const Constant *C, 45 Align &Alignment) const override; 46 47 void getModuleMetadata(Module &M) override; 48 49 bool isInSmallSection(uint64_t Size) const; 50 51 const MCExpr *getIndirectSymViaGOTPCRel(const GlobalValue *GV, 52 const MCSymbol *Sym, 53 const MCValue &MV, int64_t Offset, 54 MachineModuleInfo *MMI, 55 MCStreamer &Streamer) const override; 56 }; 57 58 } // end namespace llvm 59 60 #endif 61