1cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao//===- AlignFragment.h ----------------------------------------------------===// 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//===----------------------------------------------------------------------===// 9cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#ifndef MCLD_LD_ALIGNFRAGMENT_H 10cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#define MCLD_LD_ALIGNFRAGMENT_H 11cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#ifdef ENABLE_UNITTEST 12cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#include <gtest.h> 13cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#endif 14cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 15cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#include <mcld/LD/Fragment.h> 16cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 17cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaonamespace mcld 18cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao{ 19cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 20cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaoclass SectionData; 21cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 22cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaoclass AlignFragment : public Fragment 23cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao{ 24cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaopublic: 25cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao AlignFragment(unsigned int pAlignment, int64_t pValue, unsigned int pValueSize, 26cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int pMaxBytesToEmit, SectionData *pSD = NULL); 27cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 28cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int getAlignment() const { return m_Alignment; } 29cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 30cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao int64_t getValue() const { return m_Value; } 31cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 32cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int getValueSize() const { return m_ValueSize; } 33cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 34cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int getMaxBytesToEmit() const { return m_MaxBytesToEmit; } 35cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 36cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao bool hasEmitNops() const { return m_bEmitNops; } 37cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 38cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao void setEmitNops(bool pValue) { m_bEmitNops = pValue; } 39cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 40cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao static bool classof(const Fragment *F) { 41cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao return F->getKind() == Fragment::Alignment; 42cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao } 43cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao static bool classof(const AlignFragment *) { return true; } 44cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 45cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaoprivate: 46cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// Alignment - The alignment to ensure, in bytes. 47cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int m_Alignment; 48cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 49cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// Value - Value to use for filling padding bytes. 50cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao int64_t m_Value; 51cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 52cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// ValueSize - The size of the integer (in bytes) of \arg Value. 53cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int m_ValueSize; 54cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 55cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// MaxBytesToEmit - The maximum number of bytes to emit; if the alignment 56cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// cannot be satisfied in this width then this fragment is ignored. 57cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int m_MaxBytesToEmit; 58cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 59cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// EmitNops - Flag to indicate that (optimal) NOPs should be emitted instead 60cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// of using the provided value. The exact interpretation of this flag is 61cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// target dependent. 62cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao bool m_bEmitNops : 1; 63cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 64cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao}; 65cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 66cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao} // namespace of mcld 67cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 68cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#endif 69cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 70