diff options
Diffstat (limited to 'debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CMemoryBlockExtension.java')
| -rw-r--r-- | debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CMemoryBlockExtension.java | 604 |
1 files changed, 0 insertions, 604 deletions
diff --git a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CMemoryBlockExtension.java b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CMemoryBlockExtension.java deleted file mode 100644 index 9f4fb6d0697..00000000000 --- a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CMemoryBlockExtension.java +++ /dev/null @@ -1,604 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004, 2015 QNX Software Systems and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * QNX Software Systems - Initial API and implementation - *******************************************************************************/ -package org.eclipse.cdt.debug.internal.core.model; - -import java.math.BigInteger; -import java.util.Arrays; -import java.util.HashSet; -import java.util.Set; - -import org.eclipse.cdt.debug.core.CDebugCorePlugin; -import org.eclipse.cdt.debug.core.cdi.CDIException; -import org.eclipse.cdt.debug.core.cdi.ICDISession; -import org.eclipse.cdt.debug.core.cdi.event.ICDIEvent; -import org.eclipse.cdt.debug.core.cdi.event.ICDIEventListener; -import org.eclipse.cdt.debug.core.cdi.event.ICDIMemoryChangedEvent; -import org.eclipse.cdt.debug.core.cdi.event.ICDIRestartedEvent; -import org.eclipse.cdt.debug.core.cdi.event.ICDIResumedEvent; -import org.eclipse.cdt.debug.core.cdi.model.ICDIMemoryBlock; -import org.eclipse.cdt.debug.core.cdi.model.ICDIMemoryBlockManagement2; -import org.eclipse.cdt.debug.core.cdi.model.ICDIMemorySpaceEncoder; -import org.eclipse.cdt.debug.core.cdi.model.ICDIMemorySpaceManagement; -import org.eclipse.cdt.debug.core.cdi.model.ICDIObject; -import org.eclipse.cdt.debug.core.cdi.model.ICDITarget; -import org.eclipse.cdt.debug.core.model.IExecFileInfo; -import org.eclipse.cdt.debug.core.model.provisional.IMemorySpaceAwareMemoryBlock; -import org.eclipse.cdt.debug.internal.core.CMemoryBlockRetrievalExtension; -import org.eclipse.debug.core.DebugEvent; -import org.eclipse.debug.core.DebugException; -import org.eclipse.debug.core.DebugPlugin; -import org.eclipse.debug.core.model.IMemoryBlockRetrieval; -import org.eclipse.debug.core.model.MemoryByte; - -/** - * Represents a memory block in the CDI model. - */ -public class CMemoryBlockExtension extends CDebugElement implements IMemorySpaceAwareMemoryBlock, ICDIEventListener { - - /** - * The address expression this memory block is based on. - */ - private String fExpression; - - /** - * The base address of this memory block. - */ - private BigInteger fBaseAddress; - - /** - * The memory space identifier; will be null for backends that - * don't require memory space support - */ - private String fMemorySpaceID; - - /** - * The underlying CDI memory block. - */ - private ICDIMemoryBlock fCDIBlock; - - /** - * The memory bytes values. - */ - private MemoryByte[] fBytes = null; - - private Set<BigInteger> fChanges = new HashSet<BigInteger>(); - - /** - * is fWordSize available? - */ - private boolean fHaveWordSize; - - /** - * The number of bytes per address. - */ - private int fWordSize; - - - /** - * Constructor - */ - public CMemoryBlockExtension( CDebugTarget target, String expression, BigInteger baseAddress ) { - this(target, expression, baseAddress, null); - } - - /** - * Constructor that takes a memory space identifier - */ - @SuppressWarnings("deprecation") - public CMemoryBlockExtension( CDebugTarget target, String expression, BigInteger baseAddress, String memorySpaceID ) { - super( target ); - - fBaseAddress = baseAddress; - fMemorySpaceID = memorySpaceID; - - if (memorySpaceID == null) { - fExpression = expression; - } - else { - assert memorySpaceID.length() > 0; - ICDITarget cdiTarget = target.getCDITarget(); - if (cdiTarget instanceof ICDIMemorySpaceEncoder) { - // new interface - fExpression = ((ICDIMemorySpaceEncoder)cdiTarget).encodeAddress(expression, memorySpaceID); - } - else if (cdiTarget instanceof ICDIMemorySpaceManagement) { - // old interface - fExpression = ((ICDIMemorySpaceManagement)target.getCDITarget()).addressToString(baseAddress, memorySpaceID); - } - - if (fExpression == null) { - // If the backend supports memory spaces, it should implement ICDIMemorySpaceManagement - // Even if it does, it may choose to use our built-in encoding/decoding - fExpression = CMemoryBlockRetrievalExtension.encodeAddressDefault(expression, memorySpaceID); - } - } - - } - - /** - * Constructor that takes the addressable size - */ - public CMemoryBlockExtension( CDebugTarget target, String expression, BigInteger baseAddress, int wordSize ) { - this( target, expression, baseAddress, wordSize, null ); - } - - /** - * Constructor that takes the addressable size and a memory space identifier - */ - public CMemoryBlockExtension( CDebugTarget target, String expression, BigInteger baseAddress, int wordSize, String memorySpaceID ) { - super( target ); - fExpression = expression; - fBaseAddress = baseAddress; - fWordSize= wordSize; - fHaveWordSize= true; - fMemorySpaceID = memorySpaceID; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getExpression() - */ - @Override - public String getExpression() { - return fExpression; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getBigBaseAddress() - */ - @Override - public BigInteger getBigBaseAddress() { - return fBaseAddress; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getAddressSize() - */ - @Override - public int getAddressSize() { - return ((CDebugTarget)getDebugTarget()).getAddressFactory().createAddress( getBigBaseAddress() ).getSize(); - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getAddressableSize() - */ - @Override - public int getAddressableSize() throws DebugException { - if (!fHaveWordSize) { - synchronized (this) { - if (!fHaveWordSize) { - ICDIMemoryBlock block= getCDIBlock(); - if (block == null) { - try { - // create a CDI block of an arbitrary size so we can call into - // the backend to determine the memory's addressable size - setCDIBlock( block= createCDIBlock( fBaseAddress, 100 )); - } - catch( CDIException e ) { - targetRequestFailed( e.getMessage(), null ); - } - } - if (block != null) { - fWordSize= block.getWordSize(); - fHaveWordSize= true; - } - } - } - } - return fWordSize; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#supportBaseAddressModification() - */ - @Override - public boolean supportBaseAddressModification() { - return true; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#setBaseAddress(java.math.BigInteger) - */ - @Override - public void setBaseAddress( BigInteger address ) throws DebugException { - BigInteger current = fBaseAddress; - if (current == address || (current != null && current.equals(address))) { - return; // optimization - } - fBaseAddress = address; - fireChangeEvent(DebugEvent.STATE); - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getBytesFromOffset(java.math.BigInteger, long) - */ - @Override - public MemoryByte[] getBytesFromOffset( BigInteger unitOffset, long addressableUnits ) throws DebugException { - return getBytesFromAddress(unitOffset.add(getBigBaseAddress()) , addressableUnits); - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getBytesFromAddress(java.math.BigInteger, long) - */ - @Override - public MemoryByte[] getBytesFromAddress( BigInteger address, long length ) throws DebugException { - ICDIMemoryBlock cdiBlock = getCDIBlock(); - if ( fBytes == null || cdiBlock == null || - cdiBlock.getStartAddress().compareTo( address ) > 0 || - cdiBlock.getStartAddress().add( BigInteger.valueOf( cdiBlock.getLength()/cdiBlock.getWordSize() ) ).compareTo( address.add( BigInteger.valueOf( length ) ) ) < 0 ) { - synchronized( this ) { - byte[] bytes = null; - try { - cdiBlock = getCDIBlock(); - if ( cdiBlock == null || - cdiBlock.getStartAddress().compareTo( address ) > 0 || - cdiBlock.getStartAddress().add( BigInteger.valueOf( cdiBlock.getLength()/cdiBlock.getWordSize() ) ).compareTo( address.add( BigInteger.valueOf( length ) ) ) < 0 ) { - if ( cdiBlock != null ) { - disposeCDIBlock(); - fBytes = null; - } - setCDIBlock( cdiBlock = createCDIBlock( address, length ) ); - } - bytes = getCDIBlock().getBytes(); - } - catch( CDIException e ) { - targetRequestFailed( e.getMessage(), null ); - } - if (bytes != null) { - fBytes = new MemoryByte[bytes.length]; - for ( int i = 0; i < bytes.length; ++i ) { - fBytes[i] = createMemoryByte( bytes[i], getCDIBlock().getFlags( i ), hasChanged( getRealBlockAddress().add( BigInteger.valueOf( i ) ) ) ); - } - } - } - } - MemoryByte[] result = new MemoryByte[0]; - if ( fBytes != null && cdiBlock != null ) { - int offset = address.subtract( getRealBlockAddress() ).intValue(); - int offsetInBytes = offset * cdiBlock.getWordSize(); - long lengthInBytes = length * cdiBlock.getWordSize(); - if ( offset >= 0 ) { - int size = ( fBytes.length - offsetInBytes >= lengthInBytes ) ? (int)lengthInBytes : fBytes.length - offsetInBytes; - if ( size > 0 ) { - result = new MemoryByte[size]; - System.arraycopy( fBytes, offsetInBytes, result, 0, size ); - } - } - } - return result; - } - - private boolean isBigEndian() { - IExecFileInfo info = getDebugTarget().getAdapter( IExecFileInfo.class ); - if ( info != null ) { - return !info.isLittleEndian(); - } - return false; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getMemoryBlockRetrieval() - */ - @Override - public IMemoryBlockRetrieval getMemoryBlockRetrieval() { - return getDebugTarget().getAdapter( IMemoryBlockRetrieval.class ); - } - - /* (non-Javadoc) - * @see org.eclipse.cdt.debug.core.cdi.event.ICDIEventListener#handleDebugEvents(org.eclipse.cdt.debug.core.cdi.event.ICDIEvent[]) - */ - @Override - public void handleDebugEvents( ICDIEvent[] events ) { - for( int i = 0; i < events.length; i++ ) { - ICDIEvent event = events[i]; - ICDIObject source = event.getSource(); - if ( source == null ) - continue; - if ( source.getTarget().equals( getCDITarget() ) ) { - if ( event instanceof ICDIResumedEvent || event instanceof ICDIRestartedEvent ) { - resetChanges(); - } - else if ( event instanceof ICDIMemoryChangedEvent ) { - if ( source instanceof ICDIMemoryBlock && source.equals( getCDIBlock() ) ) { - handleChangedEvent( (ICDIMemoryChangedEvent)event ); - } - } - } - } - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlock#getStartAddress() - */ - @Override - public long getStartAddress() { - return 0; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlock#getLength() - */ - @Override - public long getLength() { - return 0; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlock#getBytes() - */ - @Override - public byte[] getBytes() throws DebugException { - return null; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlock#supportsValueModification() - */ - @Override - public boolean supportsValueModification() { - return true; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlock#setValue(long, byte[]) - */ - @Override - public void setValue( long offset, byte[] bytes ) throws DebugException { - setValue( BigInteger.valueOf( offset ), bytes ); - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#setValue(java.math.BigInteger, byte[]) - */ - @Override - public void setValue( BigInteger offset, byte[] bytes ) throws DebugException { - ICDIMemoryBlock block = getCDIBlock(); - if ( block != null ) { - BigInteger base = getBigBaseAddress(); - BigInteger real = getRealBlockAddress(); - long realOffset = base.add( offset ).subtract( real ).longValue(); - try { - block.setValue( realOffset, bytes ); - } - catch( CDIException e ) { - targetRequestFailed( e.getDetailMessage(), null ); - } - } - } - - private ICDIMemoryBlock createCDIBlock( BigInteger address, long length) throws CDIException { - ICDIMemoryBlock block = null; - CDebugTarget target = (CDebugTarget)getDebugTarget(); - ICDITarget cdiTarget = target.getCDITarget(); - if ((fMemorySpaceID != null) && (cdiTarget instanceof ICDIMemoryBlockManagement2)) { - block = ((ICDIMemoryBlockManagement2)cdiTarget).createMemoryBlock(address, fMemorySpaceID, (int)length); - } else { - // Note that CDI clients should ignore the word size - // parameter. It has been deprecated in 4.0. We continue to - // pass in 1 as has always been the case to maintain backwards - // compatibility. - block = cdiTarget.createMemoryBlock( address.toString(), (int)length, 1); - } - block.setFrozen( false ); - getCDISession().getEventManager().addEventListener( this ); - return block; - } - - private void disposeCDIBlock() { - ICDIMemoryBlock block = getCDIBlock(); - if ( block != null ) { - try { - ((CDebugTarget)getDebugTarget()).getCDITarget().removeBlocks( new ICDIMemoryBlock[]{ block }); - } - catch( CDIException e ) { - DebugPlugin.log( e ); - } - setCDIBlock( null ); - getCDISession().getEventManager().removeEventListener( this ); - } - } - - private ICDIMemoryBlock getCDIBlock() { - return fCDIBlock; - } - - private void setCDIBlock( ICDIMemoryBlock cdiBlock ) { - fCDIBlock = cdiBlock; - } - - private BigInteger getRealBlockAddress() { - ICDIMemoryBlock block = getCDIBlock(); - return ( block != null ) ? block.getStartAddress() : BigInteger.ZERO; - } - - private long getBlockSize() { - ICDIMemoryBlock block = getCDIBlock(); - return ( block != null ) ? block.getLength() : 0; - } - - private void handleChangedEvent( ICDIMemoryChangedEvent event ) { - ICDIMemoryBlock block = getCDIBlock(); - if ( block != null && fBytes != null ) { - MemoryByte[] memBytes = fBytes.clone(); - try { - BigInteger start = getRealBlockAddress(); - long length = block.getLength(); - byte[] newBytes = block.getBytes(); - BigInteger[] addresses = event.getAddresses(); - saveChanges( addresses ); - for ( int i = 0; i < addresses.length; ++i ) { - fChanges.add( addresses[i] ); - int addressableSize = fCDIBlock.getWordSize(); // # of bytes per address - if ( addresses[i].compareTo( start ) >= 0 && addresses[i].compareTo( start.add( BigInteger.valueOf( length / addressableSize ) ) ) < 0 ) { - int index = addressableSize * addresses[i].subtract( start ).intValue(); - int end = Math.min(Math.min(index + addressableSize, memBytes.length), newBytes.length); - for (index = Math.max(index, 0) ; index < end; index++ ) { - memBytes[index].setChanged( true ); - memBytes[index].setValue( newBytes[index] ); - } - } - } - fBytes = memBytes; - fireChangeEvent( DebugEvent.CONTENT ); - } - catch( CDIException e ) { - DebugPlugin.log( e ); - } - } - } - - private void saveChanges( BigInteger[] addresses ) { - fChanges.addAll( Arrays.asList( addresses ) ); - } - - private boolean hasChanged( BigInteger address ) { - return fChanges.contains( address ); - } - - private void resetChanges() { - if ( fBytes != null ) { - BigInteger[] changes = fChanges.toArray( new BigInteger[fChanges.size()] ); - for ( int i = 0; i < changes.length; ++i ) { - BigInteger real = getRealBlockAddress(); - if ( real.compareTo( changes[i] ) <= 0 && real.add( BigInteger.valueOf( getBlockSize() ) ).compareTo( changes[i] ) > 0 ) { - int index = changes[i].subtract( real ).intValue(); - if ( index >= 0 && index < fBytes.length ) { - fBytes[index].setChanged( false ); - } - } - } - } - fChanges.clear(); - fireChangeEvent( DebugEvent.CONTENT ); - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#supportsChangeManagement() - */ - @Override - public boolean supportsChangeManagement() { - return true; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#connect(java.lang.Object) - */ - @Override - public void connect( Object object ) { - // TODO Auto-generated method stub - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#disconnect(java.lang.Object) - */ - @Override - public void disconnect( Object object ) { - // TODO Auto-generated method stub - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getConnections() - */ - @Override - public Object[] getConnections() { - // TODO Auto-generated method stub - return new Object[0]; - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#dispose() - */ - @Override - public void dispose() { - fChanges.clear(); - ICDIMemoryBlock cdiBlock = getCDIBlock(); - if ( cdiBlock != null ) { - try { - ((CDebugTarget)getDebugTarget()).getCDITarget().removeBlocks( new ICDIMemoryBlock[] {cdiBlock} ); - } - catch( CDIException e ) { - CDebugCorePlugin.log( e ); - } - fCDIBlock = null; - } - final ICDISession cdiSession = getCDISession(); - if (cdiSession != null) { - cdiSession.getEventManager().removeEventListener( this ); - } - } - - /* (non-Javadoc) - * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class) - */ - @Override - @SuppressWarnings("rawtypes") - public Object getAdapter( Class adapter ) { - if ( IMemoryBlockRetrieval.class.equals( adapter ) ) - return getMemoryBlockRetrieval(); - return super.getAdapter( adapter ); - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getMemoryBlockStartAddress() - */ - @Override - public BigInteger getMemoryBlockStartAddress() throws DebugException { - return null; // return null to mean not bounded ... according to the spec - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getMemoryBlockEndAddress() - */ - @Override - public BigInteger getMemoryBlockEndAddress() throws DebugException { - return null;// return null to mean not bounded ... according to the spec - } - - /* (non-Javadoc) - * @see org.eclipse.debug.core.model.IMemoryBlockExtension#getBigLength() - */ - @Override - public BigInteger getBigLength() throws DebugException { - ICDIMemoryBlock block = getCDIBlock(); - if ( block != null ) { - BigInteger length = new BigInteger( Long.toHexString( block.getLength() ), 16 ); - return length; - } - return BigInteger.ZERO; - } - - private MemoryByte createMemoryByte( byte value, byte cdiFlags, boolean changed ) { - byte flags = 0; - if ( (cdiFlags & ICDIMemoryBlock.VALID) != 0 ) { - flags |= MemoryByte.HISTORY_KNOWN | MemoryByte.ENDIANESS_KNOWN; - if ( (cdiFlags & ICDIMemoryBlock.READ_ONLY) != 0 ) { - flags |= MemoryByte.READABLE; - } - else { - flags |= MemoryByte.READABLE | MemoryByte.WRITABLE; - } - if ( isBigEndian() ) { - flags |= MemoryByte.BIG_ENDIAN; - } - if ( changed ) - flags |= MemoryByte.CHANGED; - } - return new MemoryByte( value, flags ); - } - - - /** - * @see org.eclipse.cdt.debug.core.model.provisional.IMemorySpaceAwareMemoryBlock#getMemorySpaceID() - */ - @Override - public String getMemorySpaceID() { - return fMemorySpaceID; - } -} |