| //=== ELFRelocation.h - ELF Relocation Info ---------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by Christopher Lamb and is distributed under the |
| // University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the ELFRelocation class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CODEGEN_ELF_RELOCATION_H |
| #define LLVM_CODEGEN_ELF_RELOCATION_H |
| |
| #include "llvm/Support/DataTypes.h" |
| |
| namespace llvm { |
| |
| /// ELFRelocation - This class contains all the information necessary to |
| /// to generate any 32-bit or 64-bit ELF relocation entry. |
| class ELFRelocation { |
| uint64_t r_offset; // offset in the section of the object this applies to |
| uint32_t r_symidx; // symbol table index of the symbol to use |
| uint32_t r_type; // machine specific relocation type |
| int64_t r_add; // explicit relocation addend |
| bool r_rela; // if true then the addend is part of the entry |
| // otherwise the addend is at the location specified |
| // by r_offset |
| public: |
| |
| uint64_t getInfo(bool is64Bit = false) const { |
| if (is64Bit) |
| return ((uint64_t)r_symidx << 32) + ((uint64_t)r_type & 0xFFFFFFFFL); |
| else |
| return (r_symidx << 8) + (r_type & 0xFFL); |
| } |
| |
| uint64_t getOffset() const { return r_offset; } |
| uint64_t getAddress() const { return r_add; } |
| |
| ELFRelocation(uint64_t off, uint32_t sym, uint32_t type, |
| bool rela = true, int64_t addend = 0) : |
| r_offset(off), r_symidx(sym), r_type(type), |
| r_add(addend), r_rela(rela) {} |
| }; |
| |
| } // end llvm namespace |
| |
| #endif // LLVM_CODEGEN_ELF_RELOCATION_H |
| |