1cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao//===- AlignFragment.cpp --------------------------------------------------===// 2cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// 3cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// The MCLinker Project 4cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// 5cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// This file is distributed under the University of Illinois Open Source 6cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// License. See LICENSE.TXT for details. 7cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// 8cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao//===----------------------------------------------------------------------===// 937b74a387bb3993387029859c2d9d051c41c724eStephen Hines#include "mcld/Fragment/AlignFragment.h" 1037b74a387bb3993387029859c2d9d051c41c724eStephen Hines#include "mcld/LD/SectionData.h" 11cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 1222add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao#include <llvm/Support/MathExtras.h> 13cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 1437b74a387bb3993387029859c2d9d051c41c724eStephen Hinesnamespace mcld { 15cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 16cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao//===----------------------------------------------------------------------===// 17cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// AlignFragment 18cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao//===----------------------------------------------------------------------===// 19cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei LiaoAlignFragment::AlignFragment(unsigned int pAlignment, 20cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao int64_t pValue, 21cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int pValueSize, 22cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int pMaxBytesToEmit, 2337b74a387bb3993387029859c2d9d051c41c724eStephen Hines SectionData* pSD) 2437b74a387bb3993387029859c2d9d051c41c724eStephen Hines : Fragment(Fragment::Alignment, pSD), 2537b74a387bb3993387029859c2d9d051c41c724eStephen Hines m_Alignment(pAlignment), 2637b74a387bb3993387029859c2d9d051c41c724eStephen Hines m_Value(pValue), 2737b74a387bb3993387029859c2d9d051c41c724eStephen Hines m_ValueSize(pValueSize), 2837b74a387bb3993387029859c2d9d051c41c724eStephen Hines m_MaxBytesToEmit(pMaxBytesToEmit), 2937b74a387bb3993387029859c2d9d051c41c724eStephen Hines m_bEmitNops(false) { 30cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao} 31cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 3237b74a387bb3993387029859c2d9d051c41c724eStephen Hinessize_t AlignFragment::size() const { 3337b74a387bb3993387029859c2d9d051c41c724eStephen Hines assert(hasOffset() && 3437b74a387bb3993387029859c2d9d051c41c724eStephen Hines "AlignFragment::size() should not be called before layout."); 3522add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao uint64_t size = llvm::OffsetToAlignment(getOffset(), m_Alignment); 3622add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao if (size > m_MaxBytesToEmit) 3722add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao return 0; 3822add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao 3922add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao return size; 4022add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao} 4122add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao 4237b74a387bb3993387029859c2d9d051c41c724eStephen Hines} // namespace mcld 43