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74 lines
2.0 KiB
74 lines
2.0 KiB
7 months ago
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//===- SectionSymbolSet.h -------------------------------------------------===//
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//
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// The MCLinker Project
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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 MCLD_LD_SECTIONSYMBOLSET_H_
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#define MCLD_LD_SECTIONSYMBOLSET_H_
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#include "mcld/ADT/HashTable.h"
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#include "mcld/ADT/HashEntry.h"
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#include "mcld/MC/SymbolCategory.h"
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namespace mcld {
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class LDSection;
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class NamePool;
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class LDSymbol;
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/** \class SectionSymbolSet
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* \brief SectionSymbolSet contains the section symbols defined by linker for
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* the output sections
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*/
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class SectionSymbolSet {
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public:
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typedef SymbolCategory SymbolTable;
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public:
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SectionSymbolSet();
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~SectionSymbolSet();
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/// add - create and add an section symbol for the output
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/// LDSection
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bool add(LDSection& pOutSect, NamePool& pNamePool);
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/// finalize - set section symbols' fragmentRef and push it into the output
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/// symbol table
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bool finalize(LDSection& pOutSect, SymbolTable& pSymTab, bool relocatable);
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/// get - get the section symbol for section pOutpSect
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LDSymbol* get(const LDSection& pOutSect);
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const LDSymbol* get(const LDSection& pOutSect) const;
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private:
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/// sectCompare - hash compare function for LDSection*
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struct SectCompare {
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bool operator()(const LDSection* X, const LDSection* Y) const {
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return (X == Y);
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}
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};
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/// SectPtrHash - hash function for LDSection*
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struct SectPtrHash {
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size_t operator()(const LDSection* pKey) const {
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return (unsigned((uintptr_t)pKey) >> 4) ^
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(unsigned((uintptr_t)pKey) >> 9);
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}
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};
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typedef HashEntry<const LDSection*, LDSymbol*, SectCompare> SectHashEntryType;
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typedef HashTable<SectHashEntryType,
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SectPtrHash,
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EntryFactory<SectHashEntryType> > SectHashTableType;
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private:
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SectHashTableType* m_pSectionSymbolMap;
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};
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} // namespace mcld
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#endif // MCLD_LD_SECTIONSYMBOLSET_H_
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