1 //===- RPNExpr.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/Script/RpnExpr.h> 10 #include <mcld/Script/ExprToken.h> 11 #include <mcld/Script/Operand.h> 12 #include <mcld/Script/Operator.h> 13 #include <mcld/Support/GCFactory.h> 14 #include <mcld/Support/raw_ostream.h> 15 #include <llvm/Support/ManagedStatic.h> 16 #include <llvm/Support/Casting.h> 17 18 using namespace mcld; 19 20 typedef GCFactory<RpnExpr, MCLD_SYMBOLS_PER_INPUT> ExprFactory; 21 static llvm::ManagedStatic<ExprFactory> g_ExprFactory; 22 23 //===----------------------------------------------------------------------===// 24 // RpnExpr 25 //===----------------------------------------------------------------------===// 26 RpnExpr::RpnExpr() 27 { 28 } 29 30 RpnExpr::~RpnExpr() 31 { 32 } 33 34 bool RpnExpr::hasDot() const 35 { 36 for (const_iterator it = begin(), ie = end(); it != ie; ++it) { 37 if ((*it)->kind() == ExprToken::OPERAND && 38 llvm::cast<Operand>(*it)->isDot()) 39 return true; 40 } 41 return false; 42 } 43 44 void RpnExpr::dump() const 45 { 46 for (const_iterator it = begin(), ie = end(); it != ie; ++it) { 47 (*it)->dump(); 48 mcld::outs() << " "; 49 } 50 } 51 52 void RpnExpr::push_back(ExprToken* pToken) 53 { 54 m_TokenQueue.push_back(pToken); 55 } 56 57 RpnExpr* RpnExpr::create() 58 { 59 RpnExpr* result = g_ExprFactory->allocate(); 60 new (result) RpnExpr(); 61 return result; 62 } 63 64 void RpnExpr::destroy(RpnExpr*& pRpnExpr) 65 { 66 g_ExprFactory->destroy(pRpnExpr); 67 g_ExprFactory->deallocate(pRpnExpr); 68 pRpnExpr = NULL; 69 } 70 71 void RpnExpr::clear() 72 { 73 g_ExprFactory->clear(); 74 } 75 76 RpnExpr::iterator RpnExpr::insert(iterator pPosition, ExprToken* pToken) 77 { 78 return m_TokenQueue.insert(pPosition, pToken); 79 } 80 81 void RpnExpr::erase(iterator pPosition) 82 { 83 m_TokenQueue.erase(pPosition); 84 } 85 86 // buildHelperExpr - build the helper expr: 87 // ADDR ( `output_sect' ) + SIZEOF ( `output_sect' ) 88 RpnExpr* RpnExpr::buildHelperExpr(SectionMap::iterator pIter) 89 { 90 RpnExpr* expr = RpnExpr::create(); 91 expr->push_back(SectDescOperand::create(*pIter)); 92 expr->push_back(&Operator::create<Operator::ADDR>()); 93 expr->push_back(SectDescOperand::create(*pIter)); 94 expr->push_back(&Operator::create<Operator::SIZEOF>()); 95 expr->push_back(&Operator::create<Operator::ADD>()); 96 return expr; 97 } 98 99 // buildHelperExpr - build the helper expr: `fragment' 100 RpnExpr* RpnExpr::buildHelperExpr(Fragment& pFrag) 101 { 102 RpnExpr* expr = RpnExpr::create(); 103 expr->push_back(FragOperand::create(pFrag)); 104 return expr; 105 } 106
