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