1 //==-- llvm/MC/MCRelocationInfo.h --------------------------------*- C++ -*-==// 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 // This file declares the MCRelocationInfo class, which provides methods to 11 // create MCExprs from relocations, either found in an object::ObjectFile 12 // (object::RelocationRef), or provided through the C API. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H 17 #define LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H 18 19 #include "llvm/Support/Compiler.h" 20 21 namespace llvm { 22 23 namespace object { 24 class RelocationRef; 25 } 26 class MCExpr; 27 class MCContext; 28 29 /// \brief Create MCExprs from relocations found in an object file. 30 class MCRelocationInfo { 31 MCRelocationInfo(const MCRelocationInfo &) = delete; 32 void operator=(const MCRelocationInfo &) = delete; 33 34 protected: 35 MCContext &Ctx; 36 37 public: 38 MCRelocationInfo(MCContext &Ctx); 39 virtual ~MCRelocationInfo(); 40 41 /// \brief Create an MCExpr for the target-specific \p VariantKind. 42 /// The VariantKinds are defined in llvm-c/Disassembler.h. 43 /// Used by MCExternalSymbolizer. 44 /// \returns If possible, an MCExpr corresponding to VariantKind, else 0. 45 virtual const MCExpr *createExprForCAPIVariantKind(const MCExpr *SubExpr, 46 unsigned VariantKind); 47 }; 48 49 } 50 51 #endif 52
