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Diffstat (limited to 'include/llvm/CodeGen/ELFRelocation.h')
-rw-r--r-- | include/llvm/CodeGen/ELFRelocation.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/ELFRelocation.h b/include/llvm/CodeGen/ELFRelocation.h new file mode 100644 index 0000000..c3f88f1 --- /dev/null +++ b/include/llvm/CodeGen/ELFRelocation.h @@ -0,0 +1,51 @@ +//=== 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 |