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 #include "mcld/LD/SectionData.h" 11 12 #include <llvm/Support/MathExtras.h> 13 14 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), 25 m_Alignment(pAlignment), 26 m_Value(pValue), 27 m_ValueSize(pValueSize), 28 m_MaxBytesToEmit(pMaxBytesToEmit), 29 m_bEmitNops(false) { 30 } 31 32 size_t AlignFragment::size() const { 33 assert(hasOffset() && 34 "AlignFragment::size() should not be called before layout."); 35 uint64_t size = llvm::OffsetToAlignment(getOffset(), m_Alignment); 36 if (size > m_MaxBytesToEmit) 37 return 0; 38 39 return size; 40 } 41 42 } // namespace mcld 43
