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//===----------------------------------------------------------------------===// 987f34658dec9097d987d254a990ea7f311bfc95fStephen Hines#ifndef MCLD_FRAGMENT_ALIGNFRAGMENT_H 1087f34658dec9097d987d254a990ea7f311bfc95fStephen Hines#define MCLD_FRAGMENT_ALIGNFRAGMENT_H 11cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 1222add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao#include <mcld/Fragment/Fragment.h> 13cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 1422add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liaonamespace mcld { 15cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 16cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaoclass SectionData; 17cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 18cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaoclass AlignFragment : public Fragment 19cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao{ 20cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaopublic: 21cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao AlignFragment(unsigned int pAlignment, int64_t pValue, unsigned int pValueSize, 22cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int pMaxBytesToEmit, SectionData *pSD = NULL); 23cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 24cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int getAlignment() const { return m_Alignment; } 25cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 26cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao int64_t getValue() const { return m_Value; } 27cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 28cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int getValueSize() const { return m_ValueSize; } 29cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 30cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int getMaxBytesToEmit() const { return m_MaxBytesToEmit; } 31cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 32cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao bool hasEmitNops() const { return m_bEmitNops; } 33cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 34cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao void setEmitNops(bool pValue) { m_bEmitNops = pValue; } 35cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 3622add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao static bool classof(const Fragment *F) 3722add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao { return F->getKind() == Fragment::Alignment; } 38cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao static bool classof(const AlignFragment *) { return true; } 39cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 4022add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao size_t size() const; 4122add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao 42cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaoprivate: 43cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// Alignment - The alignment to ensure, in bytes. 44cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int m_Alignment; 45cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 46cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// Value - Value to use for filling padding bytes. 47cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao int64_t m_Value; 48cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 49cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// ValueSize - The size of the integer (in bytes) of \arg Value. 50cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int m_ValueSize; 51cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 52cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// MaxBytesToEmit - The maximum number of bytes to emit; if the alignment 53cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// cannot be satisfied in this width then this fragment is ignored. 54cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao unsigned int m_MaxBytesToEmit; 55cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 56cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// EmitNops - Flag to indicate that (optimal) NOPs should be emitted instead 57cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// of using the provided value. The exact interpretation of this flag is 58cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao /// target dependent. 59cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao bool m_bEmitNops : 1; 60cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 61cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao}; 62cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 63cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao} // namespace of mcld 64cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 65cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#endif 66cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 67