1 //===- AlignFragment.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/Fragment/AlignFragment.h> 10 11 #include <llvm/Support/MathExtras.h> 12 #include <mcld/LD/SectionData.h> 13 14 using namespace mcld; 15 16 //===----------------------------------------------------------------------===// 17 // AlignFragment 18 //===----------------------------------------------------------------------===// 19 AlignFragment::AlignFragment(unsigned int pAlignment, 20 int64_t pValue, 21 unsigned int pValueSize, 22 unsigned int pMaxBytesToEmit, 23 SectionData *pSD) 24 : Fragment(Fragment::Alignment, pSD), m_Alignment(pAlignment), 25 m_Value(pValue), m_ValueSize(pValueSize), m_MaxBytesToEmit(pMaxBytesToEmit), 26 m_bEmitNops(false) { 27 } 28 29 size_t AlignFragment::size() const 30 { 31 assert(hasOffset() && "AlignFragment::size() should not be called before layout."); 32 uint64_t size = llvm::OffsetToAlignment(getOffset(), m_Alignment); 33 if (size > m_MaxBytesToEmit) 34 return 0; 35 36 return size; 37 } 38 39
