da06bfb794
The function was used only within Relocations.cpp, but now we are using it in many places, so this patch moves it to a file that fits to the functionality. llvm-svn: 287943
102 lines
2.1 KiB
C++
102 lines
2.1 KiB
C++
//===- Relocations.h -------------------------------------------*- C++ -*-===//
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//
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// The LLVM Linker
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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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#ifndef LLD_ELF_RELOCATIONS_H
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#define LLD_ELF_RELOCATIONS_H
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#include "lld/Core/LLVM.h"
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namespace lld {
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namespace elf {
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class SymbolBody;
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class InputSectionData;
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template <class ELFT> class InputSection;
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template <class ELFT> class InputSectionBase;
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// List of target-independent relocation types. Relocations read
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// from files are converted to these types so that the main code
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// doesn't have to know about architecture-specific details.
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enum RelExpr {
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R_ABS,
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R_GOT,
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R_GOTONLY_PC,
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R_GOTONLY_PC_FROM_END,
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R_GOTREL,
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R_GOTREL_FROM_END,
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R_GOT_FROM_END,
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R_GOT_OFF,
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R_GOT_PAGE_PC,
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R_GOT_PC,
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R_HINT,
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R_MIPS_GOT_LOCAL_PAGE,
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R_MIPS_GOT_OFF,
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R_MIPS_GOT_OFF32,
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R_MIPS_GOTREL,
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R_MIPS_TLSGD,
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R_MIPS_TLSLD,
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R_NEG_TLS,
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R_PAGE_PC,
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R_PC,
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R_PLT,
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R_PLT_PC,
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R_PLT_PAGE_PC,
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R_PPC_OPD,
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R_PPC_PLT_OPD,
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R_PPC_TOC,
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R_RELAX_GOT_PC,
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R_RELAX_GOT_PC_NOPIC,
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R_RELAX_TLS_GD_TO_IE,
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R_RELAX_TLS_GD_TO_IE_END,
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R_RELAX_TLS_GD_TO_IE_ABS,
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R_RELAX_TLS_GD_TO_IE_PAGE_PC,
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R_RELAX_TLS_GD_TO_LE,
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R_RELAX_TLS_GD_TO_LE_NEG,
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R_RELAX_TLS_IE_TO_LE,
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R_RELAX_TLS_LD_TO_LE,
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R_SIZE,
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R_THUNK_ABS,
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R_THUNK_PC,
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R_THUNK_PLT_PC,
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R_TLS,
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R_TLSDESC,
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R_TLSDESC_PAGE,
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R_TLSDESC_CALL,
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R_TLSGD,
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R_TLSGD_PC,
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R_TLSLD,
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R_TLSLD_PC,
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};
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// Architecture-neutral representation of relocation.
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struct Relocation {
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RelExpr Expr;
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uint32_t Type;
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uint64_t Offset;
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uint64_t Addend;
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SymbolBody *Sym;
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};
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template <class ELFT> void scanRelocations(InputSectionBase<ELFT> &);
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template <class ELFT> void createThunks(InputSectionBase<ELFT> &);
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template <class ELFT>
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static inline typename ELFT::uint getAddend(const typename ELFT::Rel &Rel) {
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return 0;
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}
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template <class ELFT>
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static inline typename ELFT::uint getAddend(const typename ELFT::Rela &Rel) {
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return Rel.r_addend;
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}
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}
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}
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#endif
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