1 //===- MemoryAreaFactory.cpp ----------------------------------------------===// 2 // 3 // The MCLinker Project 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #include "mcld/Support/MemoryAreaFactory.h" 10 #include "mcld/Support/RegionFactory.h" 11 12 using namespace mcld; 13 14 //========================== 15 // MemoryAreaFactory 16 MemoryAreaFactory::MemoryAreaFactory(size_t pNum) 17 : UniqueGCFactoryBase<sys::fs::Path, MemoryArea, 0>(pNum) { 18 // For each loaded file, MCLinker must load ELF header, section header, 19 // symbol table, and string table. So, we set the size of chunk quadruple 20 // larger than the number of input files. 21 m_pRegionFactory = new RegionFactory(pNum*4); 22 } 23 24 MemoryAreaFactory::~MemoryAreaFactory() 25 { 26 delete m_pRegionFactory; 27 } 28 29 MemoryArea* MemoryAreaFactory::produce(const sys::fs::Path& pPath, int pFlags) 30 { 31 MemoryArea* result = find(pPath); 32 if (0 == result) { 33 result = allocate(); 34 new (result) MemoryArea(*m_pRegionFactory); 35 result->map(pPath, pFlags); 36 f_KeyMap.insert(std::make_pair(pPath, result)); 37 } 38 return result; 39 } 40 41 MemoryArea* MemoryAreaFactory::produce(const sys::fs::Path& pPath, int pFlags, mode_t pMode) 42 { 43 MemoryArea* result = find(pPath); 44 if (0 == result) { 45 result = allocate(); 46 new (result) MemoryArea(*m_pRegionFactory); 47 result->map(pPath, pFlags, pMode); 48 f_KeyMap.insert(std::make_pair(pPath, result)); 49 } 50 return result; 51 } 52 53
