Relocation.h revision affc150dc44fab1911775a49636d0ce85333b634
15460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao//===- Relocation.h ----------------------------------------------------===// 25460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao// 35460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao// The MCLinker Project 45460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao// 55460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao// This file is distributed under the University of Illinois Open Source 65460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao// License. See LICENSE.TXT for details. 75460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao// 85460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao//===----------------------------------------------------------------------===// 95460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#ifndef LD_RELOCATION_H 105460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#define LD_RELOCATION_H 115460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#ifdef ENABLE_UNITTEST 125460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <gtest.h> 135460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#endif 145460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <llvm/ADT/ilist_node.h> 155460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <llvm/Support/DataTypes.h> 165460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <mcld/MC/MCFragmentRef.h> 175460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <mcld/LD/ResolveInfo.h> 185460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <mcld/LD/LDSymbol.h> 195460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 205460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 215460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaonamespace mcld 225460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao{ 235460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoclass Layout; 245460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoclass RelocationFactory; 255460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoclass MCLDInfo; 265460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 275460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoclass Relocation : public llvm::MCFragment 285460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao{ 295460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaofriend class RelocationFactory; 305460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 315460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaopublic: 325460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao typedef uint64_t Address; // FIXME: use SizeTrait<T>::Address instead 335460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao typedef uint64_t DWord; // FIXME: use SizeTrait<T>::Word instead 345460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao typedef uint8_t Type; 355460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 365460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoprivate: 375460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Relocation(Type pType, 385460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCFragmentRef* pTargetRef, 395460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Address pAddend, 405460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao DWord pTargetData); 415460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 425460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaopublic: 435460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ~Relocation(); 445460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 455460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// type - relocation type 465460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Type type() const 475460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return m_Type; } 485460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 495460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// symValue - S value - the symbol address 505460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Address symValue() const; 515460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 525460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// addend - A value 535460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Address addend() const 545460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return m_Addend; } 555460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 565460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// place - P value - address of the place being relocated 575460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Address place(const Layout& pLayout) const; 585460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 595460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// symbol info - binding, type 605460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const ResolveInfo* symInfo() const 615460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return m_pSymInfo; } 625460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 635460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// symbol info - binding, type 645460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ResolveInfo* symInfo() 655460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return m_pSymInfo; } 665460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 675460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// target - the target data to relocate 685460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao DWord& target(); 695460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 705460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// target - the target data to relocate 715460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const DWord& target() const; 725460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 735460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// targetRef - the reference of the target data 745460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCFragmentRef& targetRef() 755460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return m_TargetAddress; } 765460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 775460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// targetRef - the reference of the target data 785460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCFragmentRef& targetRef() const 795460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return m_TargetAddress; } 805460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 815460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void apply(RelocationFactory& pRelocFactory, const MCLDInfo& pLDInfo); 825460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 835460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// ----- modifiers ----- /// 845460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void setType(Type pType); 855460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 865460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void setAddend(Address pAddend); 875460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 885460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void setSymInfo(ResolveInfo* pSym); 895460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 905460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao // Relocation is a kind of MCFragment with type of FT_Reloc 915460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao static bool classof(const MCFragment *F) 925460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return F->getKind() == MCFragment::FT_Reloc;} 935460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao static bool classof(const Relocation *) { return true; } 945460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 955460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoprivate: 965460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// m_Type - the type of the relocation entries 975460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Type m_Type; 985460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 995460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// m_TargetData - target data of the place being relocated 1005460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao DWord m_TargetData; 1015460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1025460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// m_pSymInfo - resolved symbol info of relocation target symbol 1035460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ResolveInfo* m_pSymInfo; 1045460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1055460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// m_TargetAddress - MCFragmentRef of the place being relocated 1065460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCFragmentRef m_TargetAddress; 1075460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1085460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// m_Addend - the addend 1095460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao Address m_Addend; 1105460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao}; 1115460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1125460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao} // namespace of mcld 1135460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1145460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#endif 115affc150dc44fab1911775a49636d0ce85333b634Zonr Chang 116