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/*******************************************************************************
* Copyright (c) 2004, 2008 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
* Mike Caraman (Frescale) - https://bugs.eclipse.org/bugs/show_bug.cgi?id=210863
*******************************************************************************/
package org.eclipse.cdt.debug.internal.core.model;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.LineNumberReader;
import org.eclipse.cdt.core.IAddress;
import org.eclipse.cdt.core.IAddressFactory;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.debug.core.cdi.model.ICDIInstruction;
import org.eclipse.cdt.debug.core.cdi.model.ICDIMixedInstruction;
import org.eclipse.cdt.debug.core.model.IAsmInstruction;
import org.eclipse.cdt.debug.core.model.IAsmSourceLine;
import org.eclipse.cdt.debug.core.model.ICStackFrame;
import org.eclipse.cdt.debug.core.model.IDisassembly;
import org.eclipse.cdt.debug.core.model.IDisassemblyBlock;
import org.eclipse.cdt.debug.core.model.IExecFileInfo;
import org.eclipse.cdt.debug.core.sourcelookup.ICSourceLocator;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.core.model.ISourceLocator;
import org.eclipse.debug.core.sourcelookup.ISourceLookupDirector;
/**
* CDI-based implementation of <code>IDisassemblyBlock</code>.
*/
public class DisassemblyBlock implements IDisassemblyBlock, IAdaptable {
private IDisassembly fDisassembly;
private Object fSourceElement;
private IAsmSourceLine[] fSourceLines;
private IAddress fStartAddress = null;
private IAddress fEndAddress = null;
private boolean fMixedMode = false;
/**
* Constructor for DisassemblyBlock.
*/
private DisassemblyBlock( IDisassembly disassembly ) {
fDisassembly = disassembly;
}
public static DisassemblyBlock create( IDisassembly disassembly, ICDIMixedInstruction[] instructions ) {
DisassemblyBlock block = new DisassemblyBlock( disassembly );
ISourceLocator locator = disassembly.getDebugTarget().getLaunch().getSourceLocator();
IAddressFactory factory = ((CDebugTarget)disassembly.getDebugTarget()).getAddressFactory();
block.initialize( factory, locator, instructions );
return block;
}
public static DisassemblyBlock create( IDisassembly disassembly, ICDIInstruction[] instructions ) {
DisassemblyBlock block = new DisassemblyBlock( disassembly );
IAddressFactory factory = ((CDebugTarget)disassembly.getDebugTarget()).getAddressFactory();
block.initialize( factory, instructions );
return block;
}
private void initialize( IAddressFactory factory, ICDIInstruction[] instructions ) {
setMixedMode( false );
createSourceLines( factory, instructions );
initializeAddresses();
}
private void initialize( IAddressFactory factory, ISourceLocator locator, ICDIMixedInstruction[] mi ) {
setMixedMode( true );
createSourceLines( factory, locator, mi );
initializeAddresses();
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.core.model.IDisassemblyBlock#getDisassembly()
*/
@Override
public IDisassembly getDisassembly() {
return fDisassembly;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.core.model.IDisassemblyBlock#getModuleFile()
*/
@Override
public String getModuleFile() {
IDisassembly d = getDisassembly();
if ( d != null ) {
IExecFileInfo info = d.getAdapter( IExecFileInfo.class );
if ( info != null && info.getExecFile() != null ) {
return info.getExecFile().getPath().toOSString();
}
}
return ""; //$NON-NLS-1$
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.core.model.IDisassemblyBlock#getSourceElement()
*/
@Override
public Object getSourceElement() {
return fSourceElement;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.core.model.IDisassemblyBlock#contains(org.eclipse.cdt.debug.core.model.ICStackFrame)
*/
@Override
public boolean contains( ICStackFrame frame ) {
if ( !getDisassembly().getDebugTarget().equals( frame.getDebugTarget() ) )
return false;
if ( fStartAddress == null || fEndAddress == null )
return false;
IAddress address = frame.getAddress(); // will return null if frame was disposed
return (address != null && address.compareTo( fStartAddress ) >= 0 && address.compareTo( fEndAddress ) <= 0);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.debug.core.model.IDisassemblyBlock#getSourceLines()
*/
@Override
public IAsmSourceLine[] getSourceLines() {
return fSourceLines;
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
*/
@Override
public Object getAdapter( Class adapter ) {
return null;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.core.model.IDisassemblyBlock#isMixedMode()
*/
@Override
public boolean isMixedMode() {
return fMixedMode;
}
public void dispose() {
}
private void createSourceLines( IAddressFactory factory, ISourceLocator locator, ICDIMixedInstruction[] mi ) {
IAsmSourceLine[] result = new IAsmSourceLine[mi.length];
LineNumberReader reader = null;
if ( result.length > 0 && locator != null ) {
String fileName = mi[0].getFileName();
Object element = null;
if ( locator instanceof ISourceLookupDirector ) {
element = ((ISourceLookupDirector)locator).getSourceElement( fileName );
}
if ( locator instanceof ICSourceLocator ) {
element = ((ICSourceLocator)locator).findSourceElement( fileName );
}
fSourceElement = element;
File file = null;
if ( element instanceof IFile ) {
file = ((IFile)element).getLocation().toFile();
}
else if ( element instanceof ITranslationUnit ) {
file = ((ITranslationUnit)element).getLocation().toFile();
}
else if ( element instanceof IStorage ) {
file = ((IStorage)element).getFullPath().toFile();
}
if ( file != null ) {
try {
reader = new LineNumberReader( new FileReader( file ) );
}
catch( FileNotFoundException e ) {
}
}
}
for ( int i = 0; i < result.length; ++i ) {
String text = null;
boolean failed = false;
int lineNumber = mi[i].getLineNumber();
if ( reader != null ) {
while( reader.getLineNumber() + 1 < lineNumber ) {
try {
if ( reader.readLine() == null ) {
// break if the end of file is reached (see bug #123745)
failed = true;
break;
}
}
catch( IOException e ) {
}
}
if ( !failed && reader.getLineNumber() + 1 == lineNumber ) {
try {
text = reader.readLine() + '\n';
}
catch( IOException e ) {
}
}
}
result[i] = new AsmSourceLine( factory, text, lineNumber, mi[i].getInstructions() );
}
fSourceLines = result;
}
private void createSourceLines( IAddressFactory factory, ICDIInstruction[] instructions ) {
fSourceLines = new IAsmSourceLine[] { new AsmSourceLine( factory, "", instructions ) }; //$NON-NLS-1$
}
private void initializeAddresses() {
for ( int i = 0; i < fSourceLines.length; ++i ) {
IAsmInstruction[] instr = fSourceLines[i].getInstructions();
if ( instr.length > 0 ) {
if ( fStartAddress == null )
fStartAddress = instr[0].getAdress();
fEndAddress = instr[instr.length - 1].getAdress();
}
}
}
private void setMixedMode( boolean mixedMode ) {
this.fMixedMode = mixedMode;
}
protected boolean contains( IAddress address ) {
return ( address.compareTo( fStartAddress ) >= 0 && address.compareTo( fEndAddress ) <= 0 );
}
}
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