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//=== ELFRelocation.h - ELF Relocation Info ---------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file 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
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