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 
47 } // end namespace llvm
48 
49 #endif
50