X86LDBackend.h revision 5460a1f25d9ddecb5c70667267d66d51af177a99
15460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao//===- X86LDBackend.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 X86_LDBACKEND_H 105460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#define X86_LDBACKEND_H 115460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 125460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include "X86ELFDynamic.h" 135460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include "X86GOT.h" 145460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include "X86PLT.h" 155460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <mcld/LD/LDSection.h> 165460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <mcld/Target/GNULDBackend.h> 175460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#include <mcld/Target/OutputRelocSection.h> 185460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 195460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaonamespace mcld { 205460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 215460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao//===----------------------------------------------------------------------===// 225460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao/// X86GNULDBackend - linker backend of X86 target of GNU ELF format 235460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao/// 245460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoclass X86GNULDBackend : public GNULDBackend 255460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao{ 265460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaopublic: 275460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /** \enum ReservedEntryType 285460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * \brief The reserved entry type of reserved space in ResolveInfo. 295460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 305460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * This is used for sacnRelocation to record what kinds of entries are 315460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * reserved for this resolved symbol 325460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 335460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * In X86, there are three kinds of entries, GOT, PLT, and dynamic reloction. 345460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * GOT may needs a corresponding relocation to relocate itself, so we 355460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * separate GOT to two situations: GOT and GOTRel. Besides, for the same 365460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * symbol, there might be two kinds of entries reserved for different location. 375460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * For example, reference to the same symbol, one may use GOT and the other may 385460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * use dynamic relocation. 395460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 405460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * bit: 3 2 1 0 415460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * | PLT | GOTRel | GOT | Rel | 425460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 435460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * value Name - Description 445460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 455460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 0000 None - no reserved entry 465460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 0001 ReserveRel - reserve an dynamic relocation entry 475460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 0010 ReserveGOT - reserve an GOT entry 485460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 0011 GOTandRel - For different relocation, we've reserved GOT and 495460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * Rel for different location. 505460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 0100 GOTRel - reserve an GOT entry and the corresponding Dyncamic 515460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * relocation entry which relocate this GOT entry 525460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 0101 GOTRelandRel - For different relocation, we've reserved GOTRel 535460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * and relocation entry for different location. 545460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 1000 ReservePLT - reserve an PLT entry and the corresponding GOT, 555460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * Dynamic relocation entries 565460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * 1001 PLTandRel - For different relocation, we've reserved PLT and 575460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao * Rel for different location. 585460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao */ 595460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao enum ReservedEntryType { 605460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao None = 0, 615460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ReserveRel = 1, 625460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ReserveGOT = 2, 635460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao GOTandRel = 3, 645460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao GOTRel = 4, 655460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao GOTRelandRel = 5, 665460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ReservePLT = 8, 675460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao PLTandRel = 9 685460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao }; 695460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 705460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86GNULDBackend(); 715460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 725460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ~X86GNULDBackend(); 735460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 745460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao RelocationFactory* getRelocFactory(); 755460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 765460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao uint32_t machine() const; 775460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 785460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool isLittleEndian() const 795460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return true; } 805460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 815460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86GOT& getGOT(); 825460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 835460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const X86GOT& getGOT() const; 845460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 855460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86PLT& getPLT(); 865460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 875460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const X86PLT& getPLT() const; 885460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 895460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao unsigned int bitclass() const; 905460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 915460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// preLayout - Backend can do any needed modification before layout 925460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void doPreLayout(const Output& pOutput, 935460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pInfo, 945460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCLinker& pLinker); 955460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 965460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// postLayout -Backend can do any needed modification after layout 975460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void doPostLayout(const Output& pOutput, 985460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pInfo, 995460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCLinker& pLinker); 1005460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1015460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// dynamic - the dynamic section of the target machine. 1025460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// Use co-variant return type to return its own dynamic section. 1035460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86ELFDynamic& dynamic(); 1045460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1055460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// dynamic - the dynamic section of the target machine. 1065460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// Use co-variant return type to return its own dynamic section. 1075460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const X86ELFDynamic& dynamic() const; 1085460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1095460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// emitSectionData - write out the section data into the memory region. 1105460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// When writers get a LDSection whose kind is LDFileFormat::Target, writers 1115460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// call back target backend to emit the data. 1125460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// 1135460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// Backends handle the target-special tables (plt, gp,...) by themselves. 1145460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// Backend can put the data of the tables in MCSectionData directly 1155460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// - LDSection.getSectionData can get the section data. 1165460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// Or, backend can put the data into special data structure 1175460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// - backend can maintain its own map<LDSection, table> to get the table 1185460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// from given LDSection. 1195460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// 1205460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// @param pOutput - the output file 1215460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// @param pSection - the given LDSection 1225460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// @param pInfo - all options in the command line. 1235460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// @param pRegion - the region to write out data 1245460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// @return the size of the table in the file. 1255460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao uint64_t emitSectionData(const Output& pOutput, 1265460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const LDSection& pSection, 1275460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pInfo, 1285460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MemoryRegion& pRegion) const; 1295460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1305460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// OSABI - the value of e_ident[EI_OSABI] 1315460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// FIXME 1325460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao uint8_t OSABI() const 1335460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return llvm::ELF::ELFOSABI_NONE; } 1345460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1355460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// ABIVersion - the value of e_ident[EI_ABIVRESION] 1365460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// FIXME 1375460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao uint8_t ABIVersion() const 1385460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return 0x0; } 1395460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1405460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// flags - the value of ElfXX_Ehdr::e_flags 1415460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// FIXME 1425460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao uint64_t flags() const 1435460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao { return 0x0; } 1445460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1455460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// initTargetSectionMap - initialize target dependent section mapping 1465460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool initTargetSectionMap(SectionMap& pSectionMap); 1475460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1485460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao // initRelocFactory - create and initialize RelocationFactory 1495460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool initRelocFactory(const MCLinker& pLinker); 1505460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1515460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void initTargetSections(MCLinker& pLinker); 1525460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1535460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void initTargetSymbols(MCLinker& pLinker); 1545460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1555460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// scanRelocation - determine the empty entries are needed or not and create 1565460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// the empty entries if needed. 1575460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// For X86, following entries are check to create: 1585460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// - GOT entry (for .got and .got.plt sections) 1595460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// - PLT entry (for .plt section) 1605460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// - dynamin relocation entries (for .rel.plt and .rel.dyn sections) 1615460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void scanRelocation(Relocation& pReloc, 1625460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const LDSymbol& pInputSym, 1635460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCLinker& pLinker, 1645460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pLDInfo, 1655460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const Output& pOutput); 1665460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1675460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao OutputRelocSection& getRelDyn(); 1685460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1695460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const OutputRelocSection& getRelDyn() const; 1705460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1715460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao OutputRelocSection& getRelPLT(); 1725460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1735460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const OutputRelocSection& getRelPLT() const; 1745460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1755460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// getTargetSectionOrder - compute the layout order of X86 target sections 1765460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao unsigned int getTargetSectionOrder(const Output& pOutput, 1775460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const LDSection& pSectHdr) const; 1785460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1795460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// finalizeSymbol - finalize the symbol value 1805460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// If the symbol's reserved field is not zero, MCLinker will call back this 1815460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// function to ask the final value of the symbol 1825460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool finalizeSymbol(LDSymbol& pSymbol) const; 1835460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1845460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// allocateCommonSymbols - allocate common symbols in the corresponding 1855460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// sections. 1865460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool allocateCommonSymbols(const MCLDInfo& pLDInfo, MCLinker& pLinker) const; 1875460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1885460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaopublic: 1895460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool isSymbolPreemptible(const ResolveInfo& pSym, 1905460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pLDInfo, 1915460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const Output& pOutput) const; 1925460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 1935460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoprivate: 1945460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void scanLocalReloc(Relocation& pReloc, 1955460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const LDSymbol& pInputSym, 1965460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCLinker& pLinker, 1975460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pLDInfo, 1985460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const Output& pOutput); 1995460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2005460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void scanGlobalReloc(Relocation& pReloc, 2015460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const LDSymbol& pInputSym, 2025460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCLinker& pLinker, 2035460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pLDInfo, 2045460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const Output& pOutput); 2055460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2065460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool isSymbolNeedsPLT(const ResolveInfo& pSym, 2075460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const MCLDInfo& pLDInfo, 2085460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const Output& pOutput) const; 2095460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2105460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool isSymbolNeedsDynRel(const ResolveInfo& pSym, 2115460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const Output& pOutput, 2125460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao bool isAbsReloc) const; 2135460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2145460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void updateAddend(Relocation& pReloc, 2155460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const LDSymbol& pInputSym, 2165460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao const Layout& pLayout) const; 2175460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2185460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void createX86GOT(MCLinker& pLinker, const Output& pOutput); 2195460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void createX86PLTandRelPLT(MCLinker& pLinker, const Output& pOutput); 2205460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao void createX86RelDyn(MCLinker& pLinker, const Output& pOutput); 2215460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2225460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ELFFileFormat* getOutputFormat(const Output& pOutput) const; 2235460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2245460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoprivate: 2255460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao RelocationFactory* m_pRelocFactory; 2265460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86GOT* m_pGOT; 2275460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86PLT* m_pPLT; 2285460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// m_RelDyn - dynamic relocation table of .rel.dyn 2295460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao OutputRelocSection* m_pRelDyn; 2305460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao /// m_RelPLT - dynamic relocation table of .rel.plt 2315460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao OutputRelocSection* m_pRelPLT; 2325460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2335460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86ELFDynamic* m_pDynamic; 2345460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao LDSymbol* m_pGOTSymbol; 2355460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao}; 2365460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2375460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao//===----------------------------------------------------------------------===// 2385460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao/// X86MachOLDBackend - linker backend of X86 target of MachO format 2395460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao/// 2405460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao/** 2415460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoclass X86MachOLDBackend : public DarwinX86LDBackend 2425460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao{ 2435460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaopublic: 2445460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao X86MachOLDBackend(); 2455460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao ~X86MachOLDBackend(); 2465460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2475460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liaoprivate: 2485460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCMachOTargetArchiveReader *createTargetArchiveReader() const; 2495460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCMachOTargetObjectReader *createTargetObjectReader() const; 2505460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao MCMachOTargetObjectWriter *createTargetObjectWriter() const; 2515460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2525460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao}; 2535460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao**/ 2545460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao} // namespace of mcld 2555460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 2565460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao#endif 2575460a1f25d9ddecb5c70667267d66d51af177a99Shih-wei Liao 258