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Bug 309032: Need APIs to support memory pages (or memory spaces)

This commit is contained in:
John Cortell 2010-05-14 19:08:38 +00:00
parent 8fcc98e15c
commit e1dfb2e746
10 changed files with 825 additions and 16 deletions

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@ -21,10 +21,11 @@ Export-Package: org.eclipse.cdt.dsf.gdb,
org.eclipse.cdt.dsf.gdb.actions,
org.eclipse.cdt.dsf.gdb.breakpoints,
org.eclipse.cdt.dsf.gdb.internal.commands,
org.eclipse.cdt.dsf.gdb.internal.memory;x-internal:=true,
org.eclipse.cdt.dsf.gdb.internal.tracepointactions,
org.eclipse.cdt.dsf.gdb.launching,
org.eclipse.cdt.dsf.gdb.service,
org.eclipse.cdt.dsf.gdb.service.command,
org.eclipse.cdt.dsf.gdb.internal.tracepointactions,
org.eclipse.cdt.dsf.mi.service,
org.eclipse.cdt.dsf.mi.service.command,
org.eclipse.cdt.dsf.mi.service.command.commands,

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@ -0,0 +1,267 @@
/*******************************************************************************
* Copyright (c) 2010, Texas Instruments, Freescale Semiconductor 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:
* Texas Instruments, Freescale Semiconductor - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.gdb.internal.memory;
import java.math.BigInteger;
import java.util.concurrent.ExecutionException;
import org.eclipse.cdt.debug.core.model.provisional.IMemorySpaceAwareMemoryBlock;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.IDsfStatusConstants;
import org.eclipse.cdt.dsf.concurrent.Query;
import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.cdt.dsf.datamodel.AbstractDMContext;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.model.DsfMemoryBlock;
import org.eclipse.cdt.dsf.debug.model.DsfMemoryBlockRetrieval;
import org.eclipse.cdt.dsf.debug.service.IMemory;
import org.eclipse.cdt.dsf.debug.service.IMemory.IMemoryDMContext;
import org.eclipse.cdt.dsf.debug.service.IMemorySpaces;
import org.eclipse.cdt.dsf.debug.service.IMemorySpaces.IMemorySpaceDMContext;
import org.eclipse.cdt.dsf.gdb.internal.GdbPlugin;
import org.eclipse.cdt.utils.Addr64;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.MemoryByte;
/**
* A specialization of the DSF memory block implementation supporting memory
* spaces. The memory space support is provisional, thus this class is internal.
*
* @author Alain Lee and John Cortell
*/
public class GdbMemoryBlock extends DsfMemoryBlock implements IMemorySpaceAwareMemoryBlock {
private final String fMemorySpaceID;
/**
* Constructor
*/
GdbMemoryBlock(DsfMemoryBlockRetrieval retrieval, IMemoryDMContext context,
String modelId, String expression, BigInteger address,
int word_size, long length, String memorySpaceID) {
super(retrieval, context, modelId, expression, address, word_size, length);
fMemorySpaceID = (memorySpaceID != null && memorySpaceID.length() > 0) ? memorySpaceID : null;
assert memorySpaceID == null || memorySpaceID.length() > 0; // callers shouldn't be passing in an empty string
}
/**
* A memory space qualified context for the IMemory methods. Used if
* required, otherwise the more basic IMemoryDMContext is used
*/
public static class MemorySpaceDMContext extends AbstractDMContext implements IMemorySpaceDMContext {
private final String fMemorySpaceId;
public MemorySpaceDMContext(String sessionId, String memorySpaceId, IDMContext parent) {
super(sessionId, new IDMContext[] {parent});
fMemorySpaceId = memorySpaceId;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.dsf.debug.service.IMemorySpaces.IMemorySpaceDMContext#getMemorySpaceId()
*/
public String getMemorySpaceId() {
return fMemorySpaceId;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.dsf.datamodel.AbstractDMContext#equals(java.lang.Object)
*/
@Override
public boolean equals(Object other) {
if (other instanceof MemorySpaceDMContext) {
MemorySpaceDMContext dmc = (MemorySpaceDMContext) other;
return (super.baseEquals(other)) && (dmc.fMemorySpaceId.equals(fMemorySpaceId));
} else {
return false;
}
}
/* (non-Javadoc)
* @see org.eclipse.cdt.dsf.datamodel.AbstractDMContext#hashCode()
*/
@Override
public int hashCode() {
return super.baseHashCode() + fMemorySpaceId.hashCode();
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return baseToString() + ".memoryspace[" + fMemorySpaceId + ']'; //$NON-NLS-1$
}
}
/*
* The real thing. Since the original call is synchronous (from a platform
* Job), we use a Query that will patiently wait for the underlying
* asynchronous calls to complete before returning.
*
* @param bigAddress
* @param length
* @return MemoryByte[]
* @throws DebugException
*/
@Override
protected MemoryByte[] fetchMemoryBlock(BigInteger bigAddress, final long length) throws DebugException {
// For the IAddress interface
final Addr64 address = new Addr64(bigAddress);
// Use a Query to synchronize the downstream calls
Query<MemoryByte[]> query = new Query<MemoryByte[]>() {
@Override
protected void execute(final DataRequestMonitor<MemoryByte[]> drm) {
GdbMemoryBlockRetrieval retrieval = (GdbMemoryBlockRetrieval)getMemoryBlockRetrieval();
int addressableSize = 1;
try {
addressableSize = getAddressableSize();
} catch (DebugException e) {}
// If this block was created with a memory space qualification,
// we need to create an enhanced context
IMemoryDMContext context = null;
if (fMemorySpaceID != null) {
IMemorySpaces memoryService = (IMemorySpaces) retrieval.getMemorySpaceServiceTracker().getService();
if (memoryService != null) {
context = new MemorySpaceDMContext(memoryService.getSession().getId(), fMemorySpaceID, getContext());
}
else {
drm.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, IDsfStatusConstants.REQUEST_FAILED, Messages.Err_MemoryServiceNotAvailable, null));
drm.done();
return;
}
}
else {
context = getContext();
}
IMemory memoryService = (IMemory) retrieval.getServiceTracker().getService();
if (memoryService != null) {
// Go for it
memoryService.getMemory(
context, address, 0, addressableSize, (int) length,
//getContext(), address, 0, addressableSize, (int) length,
new DataRequestMonitor<MemoryByte[]>(retrieval.getExecutor(), drm) {
@Override
protected void handleSuccess() {
drm.setData(getData());
drm.done();
}
});
}
else {
drm.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, IDsfStatusConstants.REQUEST_FAILED, Messages.Err_MemoryServiceNotAvailable, null));
drm.done();
return;
}
}
};
GdbMemoryBlockRetrieval retrieval = (GdbMemoryBlockRetrieval)getMemoryBlockRetrieval();
retrieval.getExecutor().execute(query);
try {
return query.get();
} catch (InterruptedException e) {
throw new DebugException(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, DebugException.INTERNAL_ERROR, Messages.Err_MemoryReadFailed, e));
} catch (ExecutionException e) {
throw new DebugException(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, DebugException.INTERNAL_ERROR, Messages.Err_MemoryReadFailed, e));
}
}
/* Writes an array of bytes to memory.
*
* @param offset
* @param bytes
* @throws DebugException
*/
@Override
protected void writeMemoryBlock(final long offset, final byte[] bytes) throws DebugException {
// For the IAddress interface
final Addr64 address = new Addr64(getBigBaseAddress());
// Use a Query to synchronize the downstream calls
Query<MemoryByte[]> query = new Query<MemoryByte[]>() {
@Override
protected void execute(final DataRequestMonitor<MemoryByte[]> drm) {
GdbMemoryBlockRetrieval retrieval = (GdbMemoryBlockRetrieval)getMemoryBlockRetrieval();
int addressableSize = 1;
// If this block was created with a memory space qualification,
// we need to create an enhanced context
IMemoryDMContext context = null;
if (fMemorySpaceID != null) {
IMemorySpaces memoryService = (IMemorySpaces) retrieval.getMemorySpaceServiceTracker().getService();
if (memoryService != null) {
context = new MemorySpaceDMContext(memoryService.getSession().getId(), fMemorySpaceID, getContext());
}
else {
drm.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, IDsfStatusConstants.REQUEST_FAILED, Messages.Err_MemoryServiceNotAvailable, null));
drm.done();
return;
}
}
else {
context = getContext();
}
IMemory memoryService = (IMemory) retrieval.getServiceTracker().getService();
if (memoryService != null) {
// Go for it
memoryService.setMemory(
context, address, offset, addressableSize, bytes.length, bytes,
new RequestMonitor(retrieval.getExecutor(), drm));
}
else {
drm.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, IDsfStatusConstants.REQUEST_FAILED, Messages.Err_MemoryServiceNotAvailable, null));
drm.done();
return;
}
}
};
GdbMemoryBlockRetrieval retrieval = (GdbMemoryBlockRetrieval)getMemoryBlockRetrieval();
retrieval.getExecutor().execute(query);
try {
query.get();
} catch (InterruptedException e) {
throw new DebugException(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, DebugException.INTERNAL_ERROR, Messages.Err_MemoryWriteFailed, e));
} catch (ExecutionException e) {
throw new DebugException(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, DebugException.INTERNAL_ERROR, Messages.Err_MemoryWriteFailed, e));
}
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.internal.core.model.provisional.IMemorySpaceAwareMemoryBlock#getMemorySpaceID()
*/
public String getMemorySpaceID() {
return fMemorySpaceID;
}
/**
* Override this method to qualify the expression with the memory space, if
* applicable.
*
* @see org.eclipse.cdt.dsf.debug.model.DsfMemoryBlock#getExpression()
*/
@Override
public String getExpression() {
if (fMemorySpaceID != null) {
assert fMemorySpaceID.length() > 0;
GdbMemoryBlockRetrieval retrieval = (GdbMemoryBlockRetrieval)getMemoryBlockRetrieval();
return retrieval.encodeAddress(super.getExpression(), fMemorySpaceID);
}
return super.getExpression();
}
}

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@ -0,0 +1,365 @@
/*******************************************************************************
* Copyright (c) 2010, Texas Instruments, Freescale Semiconductor 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:
* Texas Instruments, Freescale Semiconductor - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.gdb.internal.memory;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.cdt.debug.core.model.provisional.IMemorySpaceAwareMemoryBlock;
import org.eclipse.cdt.debug.core.model.provisional.IMemorySpaceAwareMemoryBlockRetrieval;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.Query;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.model.DsfMemoryBlock;
import org.eclipse.cdt.dsf.debug.model.DsfMemoryBlockRetrieval;
import org.eclipse.cdt.dsf.debug.service.IMemory.IMemoryDMContext;
import org.eclipse.cdt.dsf.debug.service.IMemorySpaces;
import org.eclipse.cdt.dsf.gdb.internal.GdbPlugin;
import org.eclipse.cdt.dsf.service.DsfServices;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.debug.core.model.IMemoryBlock;
import org.eclipse.debug.core.model.IMemoryBlockExtension;
import org.osgi.framework.BundleContext;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.util.tracker.ServiceTracker;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* A specialization of the DSF memory block retrieval implementation supporting
* memory spaces. The memory space support is provisional, thus this class is
* internal.
*
* @author Alain Lee and John Cortell
*/
public class GdbMemoryBlockRetrieval extends DsfMemoryBlockRetrieval implements
IMemorySpaceAwareMemoryBlockRetrieval {
private final ServiceTracker fMemorySpaceServiceTracker;
// No need to use the constants in our base class. Serializing and
// recreating the blocks is done entirely by us
private static final String MEMORY_BLOCK_EXPRESSION_LIST = "memoryBlockExpressionList"; //$NON-NLS-1$
private static final String ATTR_EXPRESSION_LIST_CONTEXT = "context"; //$NON-NLS-1$
private static final String MEMORY_BLOCK_EXPRESSION = "gdbmemoryBlockExpression"; //$NON-NLS-1$
private static final String ATTR_MEMORY_BLOCK_EXPR_LABEL = "label"; //$NON-NLS-1$
private static final String ATTR_MEMORY_BLOCK_EXPR_ADDRESS = "address"; //$NON-NLS-1$
private static final String ATTR_MEMORY_BLOCK_MEMORY_SPACE_ID = "memorySpaceID"; //$NON-NLS-1$
/** see comment in base class */
private static final String CONTEXT_RESERVED = "reserved-for-future-use"; //$NON-NLS-1$
/**
* Constructor
*/
public GdbMemoryBlockRetrieval(String modelId, ILaunchConfiguration config,
DsfSession session) throws DebugException {
super(modelId, config, session);
BundleContext bundle = GdbPlugin.getBundleContext();
// Create a tracker for the MemoryPageService
String memoryPageServiceFilter = DsfServices.createServiceFilter(IMemorySpaces.class, session.getId());
try {
fMemorySpaceServiceTracker = new ServiceTracker(
bundle, bundle.createFilter(memoryPageServiceFilter), null);
} catch (InvalidSyntaxException e) {
throw new DebugException(new Status(IStatus.ERROR,
GdbPlugin.PLUGIN_ID, DebugException.INTERNAL_ERROR,
"Error creating service filter.", e)); //$NON-NLS-1$
}
fMemorySpaceServiceTracker.open();
}
/* (non-Javadoc)
* @see org.eclipse.cdt.dsf.debug.model.DsfMemoryBlockRetrieval#getExtendedMemoryBlock(java.lang.String, java.lang.Object)
*/
@Override
public IMemoryBlockExtension getExtendedMemoryBlock(String expression, Object context) throws DebugException {
// Technically, we don't need to override this method. Letting our base
// class create a DsfMemoryBlock would work just fine. But, for the
// sake of consistency, lets have this retrieval class always return a
// GdbMemoryBlock.
return getMemoryBlock(expression, context, null);
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.internal.core.model.provisional.IMemorySpaceAwareMemoryBlockRetrieval#getExtendedMemoryBlock(java.lang.String, java.lang.Object, java.lang.String)
*/
public IMemorySpaceAwareMemoryBlock getMemoryBlock(String expression, Object context, String memorySpaceID) throws DebugException {
// Drill for the actual DMC
IMemoryDMContext memoryDmc = null;
IDMContext dmc = null;
if (context instanceof IAdaptable) {
dmc = (IDMContext)((IAdaptable)context).getAdapter(IDMContext.class);
if (dmc != null) {
memoryDmc = DMContexts.getAncestorOfType(dmc, IMemoryDMContext.class);
}
}
if (memoryDmc == null) {
return null;
}
// The block start address (supports 64-bit processors)
BigInteger blockAddress;
/*
* See if the expression is a simple numeric value; if it is, we can
* avoid some costly processing (calling the back-end to resolve the
* expression and obtain an address)
*/
try {
// First, assume a decimal address
int base = 10;
int offset = 0;
// Check for "hexadecimality"
if (expression.startsWith("0x") || expression.startsWith("0X")) { //$NON-NLS-1$//$NON-NLS-2$
base = 16;
offset = 2;
}
// Check for "binarity"
else if (expression.startsWith("0b")) { //$NON-NLS-1$
base = 2;
offset = 2;
}
// Check for "octality"
else if (expression.startsWith("0")) { //$NON-NLS-1$
base = 8;
offset = 1;
}
// Now, try to parse the expression. If a NumberFormatException is
// thrown, then it wasn't a simple numerical expression and we go
// to plan B (attempt an expression evaluation)
blockAddress = new BigInteger(expression.substring(offset), base);
} catch (NumberFormatException nfexc) {
// OK, expression is not a simple, absolute numeric value;
// try to resolve as an expression.
// In case of failure, simply return 'null'
// Resolve the expression
blockAddress = resolveMemoryAddress(dmc, expression);
if (blockAddress == null) {
return null;
}
}
/*
* At this point, we only resolved the requested memory block
* start address and we have no idea of the block's length.
*
* The renderer will provide this information when it calls
* getBytesFromAddress() i.e. after the memory block holder has
* been instantiated.
*
* The down side is that every time we switch renderer, for the
* same memory block, a trip to the target could result. However,
* the memory request cache should save the day.
*/
return new GdbMemoryBlock(this, memoryDmc, getModelId(), expression, blockAddress, getAddressableSize(), 0, memorySpaceID);
}
/*
* implementation of
* @see org.eclipse.cdt.debug.internal.core.model.provisional.IMemorySpaceManagement#getMemorySpaces(Object context)
*/
public void getMemorySpaces(final Object context, final GetMemorySpacesRequest request) {
Query<String[]> query = new Query<String[]>() {
@Override
protected void execute(final DataRequestMonitor<String[]> drm) {
IDMContext dmc = null;
if (context instanceof IAdaptable) {
dmc = (IDMContext)((IAdaptable)context).getAdapter(IDMContext.class);
if (dmc != null) {
IMemorySpaces memoryPageService = (IMemorySpaces)fMemorySpaceServiceTracker.getService();
if (memoryPageService != null) {
memoryPageService.getMemorySpaces(
dmc,
new DataRequestMonitor<String[]>(getExecutor(), drm) {
@Override
protected void handleCompleted() {
// Store the result
if (isSuccess()) {
request.setMemorySpaces(getData());
}
else {
request.setStatus(getStatus());
}
request.done();
drm.done(); // don't bother with status; we don't check it below
}
});
}
else {
request.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, DebugException.INTERNAL_ERROR, Messages.Err_MemoryServiceNotAvailable, null));
request.done();
drm.done();
}
}
}
}
};
getExecutor().execute(query);
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.internal.core.model.provisional.IMemorySpaceAwareMemoryBlockRetrieval#encodeAddress(java.lang.String, java.lang.String)
*/
public String encodeAddress(String expression, String memorySpaceID) {
String result = null;
IMemorySpaces service = (IMemorySpaces)fMemorySpaceServiceTracker.getService();
if (service != null) {
// the service can tell us to use our default encoding by returning null
result = service.encodeAddress(expression, memorySpaceID);
}
if (result == null) {
// default encoding
result = memorySpaceID + ':' + expression;
}
return result;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.internal.core.model.provisional.IMemorySpaceAwareMemoryBlockRetrieval#decodeAddress(java.lang.String)
*/
public DecodeResult decodeAddress(String str) throws CoreException {
IMemorySpaces memoryPageService = (IMemorySpaces)fMemorySpaceServiceTracker.getService();
if (memoryPageService != null) {
final IMemorySpaces.DecodeResult result = memoryPageService.decodeAddress(str);
if (result != null) { // service can return null to tell use to use default decoding
return new DecodeResult() {
public String getMemorySpaceId() { return result.getMemorySpaceId(); }
public String getExpression() { return result.getExpression(); }
};
}
}
// default decoding
int index = str.indexOf(':');
if (index == -1) {
throw new CoreException(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, -1, Messages.Err_InvalidEncodedAddress + ": " + str , null)); //$NON-NLS-1$
}
final String memorySpaceID = str.substring(0, index);
final String expression = (index < str.length()-1) ? str.substring(index+1) : ""; //$NON-NLS-1$
return new DecodeResult() {
public String getMemorySpaceId() { return memorySpaceID; }
public String getExpression() { return expression; }
};
}
ServiceTracker getMemorySpaceServiceTracker() {
return fMemorySpaceServiceTracker;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.dsf.debug.model.DsfMemoryBlockRetrieval#getMemento()
*/
@Override
public String getMemento() throws CoreException {
IMemoryBlock[] blocks = DebugPlugin.getDefault().getMemoryBlockManager().getMemoryBlocks(this);
Document document = DebugPlugin.newDocument();
Element expressionList = document.createElement(MEMORY_BLOCK_EXPRESSION_LIST);
expressionList.setAttribute(ATTR_EXPRESSION_LIST_CONTEXT, CONTEXT_RESERVED);
for (IMemoryBlock block : blocks) {
if (block instanceof IMemoryBlockExtension) {
IMemoryBlockExtension memoryBlock = (IMemoryBlockExtension) block;
Element expression = document.createElement(MEMORY_BLOCK_EXPRESSION);
expression.setAttribute(ATTR_MEMORY_BLOCK_EXPR_ADDRESS, memoryBlock.getBigBaseAddress().toString());
if (block instanceof IMemorySpaceAwareMemoryBlock) {
String memorySpaceID = ((IMemorySpaceAwareMemoryBlock)memoryBlock).getMemorySpaceID();
if (memorySpaceID != null) {
expression.setAttribute(ATTR_MEMORY_BLOCK_MEMORY_SPACE_ID, memorySpaceID);
// What we return from GdbMemoryBlock#getExpression()
// is the encoded representation. We need to decode it
// to get the original expression used to create the block
DecodeResult result = ((IMemorySpaceAwareMemoryBlockRetrieval)memoryBlock.getMemoryBlockRetrieval()).decodeAddress(memoryBlock.getExpression());
expression.setAttribute(ATTR_MEMORY_BLOCK_EXPR_LABEL, result.getExpression());
}
else {
expression.setAttribute(ATTR_MEMORY_BLOCK_EXPR_LABEL, memoryBlock.getExpression());
}
}
else {
assert false; // should never happen (see getExtendedMemoryBlock()), but we can handle it.
expression.setAttribute(ATTR_MEMORY_BLOCK_EXPR_LABEL, memoryBlock.getExpression());
}
expressionList.appendChild(expression);
}
}
document.appendChild(expressionList);
return DebugPlugin.serializeDocument(document);
}
/* (non-Javadoc)
* @see org.eclipse.cdt.dsf.debug.model.DsfMemoryBlockRetrieval#createBlocksFromConfiguration(org.eclipse.cdt.dsf.debug.service.IMemory.IMemoryDMContext, java.lang.String)
*/
@Override
protected void createBlocksFromConfiguration(IMemoryDMContext memoryCtx, String memento) throws CoreException {
// Parse the memento and validate its type
Element root = DebugPlugin.parseDocument(memento);
if (!root.getNodeName().equalsIgnoreCase(MEMORY_BLOCK_EXPRESSION_LIST)) {
IStatus status = new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, DebugPlugin.INTERNAL_ERROR,
"Memory monitor initialization: invalid memento", null);//$NON-NLS-1$
throw new CoreException(status);
}
// Process the block list specific to this memory context
// FIXME: (Bug228573) We only process the first entry...
if (root.getAttribute(ATTR_EXPRESSION_LIST_CONTEXT).equals(CONTEXT_RESERVED)) {
List<IMemoryBlock> blocks = new ArrayList<IMemoryBlock>();
NodeList expressionList = root.getChildNodes();
int length = expressionList.getLength();
for (int i = 0; i < length; ++i) {
Node node = expressionList.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE) {
Element entry = (Element) node;
if (entry.getNodeName().equalsIgnoreCase(MEMORY_BLOCK_EXPRESSION)) {
String label = entry.getAttribute(ATTR_MEMORY_BLOCK_EXPR_LABEL);
String address = entry.getAttribute(ATTR_MEMORY_BLOCK_EXPR_ADDRESS);
String memorySpaceID = null;
if (entry.hasAttribute(ATTR_MEMORY_BLOCK_MEMORY_SPACE_ID)) {
memorySpaceID = entry.getAttribute(ATTR_MEMORY_BLOCK_MEMORY_SPACE_ID);
if (memorySpaceID.length() == 0) {
memorySpaceID = null;
assert false : "should have either no memory space or a valid (non-empty) ID"; //$NON-NLS-1$
}
}
BigInteger blockAddress = new BigInteger(address);
DsfMemoryBlock block = new GdbMemoryBlock(this, memoryCtx, getModelId(), label, blockAddress, getAddressableSize(), 0, memorySpaceID);
blocks.add(block);
}
}
}
DebugPlugin.getDefault().getMemoryBlockManager().addMemoryBlocks( blocks.toArray(new IMemoryBlock[blocks.size()]));
}
}
}

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@ -0,0 +1,28 @@
/*******************************************************************************
* Copyright (c) 2010 Freescale Semiconductor 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:
* Freescale Semiconductor - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.gdb.internal.memory;
import org.eclipse.osgi.util.NLS;
/**
* @noinstantiate This class is not intended to be instantiated by clients.
*/
public class Messages extends NLS {
static {
NLS.initializeMessages("org.eclipse.cdt.dsf.gdb.internal.memory.messages", Messages.class); //$NON-NLS-1$
}
public static String Err_MemoryServiceNotAvailable;
public static String Err_MemoryReadFailed;
public static String Err_MemoryWriteFailed;
public static String Err_InvalidEncodedAddress;
}

View file

@ -0,0 +1,15 @@
###############################################################################
# Copyright (c) 2010 Freescale Semiconductor 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:
# Freescale Semiconductor - initial API and implementation
###############################################################################
Err_MemoryServiceNotAvailable=The required DSF memory service is not available.
Err_MemoryReadFailed=Error reading memory block
Err_MemoryWriteFailed=Error writing memory block
Err_InvalidEncodedAddress=Encoded address has unexpected format

View file

@ -32,6 +32,7 @@ import org.eclipse.cdt.dsf.debug.service.IProcesses.IProcessDMContext;
import org.eclipse.cdt.dsf.debug.service.command.ICommandControlService;
import org.eclipse.cdt.dsf.debug.service.command.ICommandControlService.ICommandControlShutdownDMEvent;
import org.eclipse.cdt.dsf.gdb.internal.GdbPlugin;
import org.eclipse.cdt.dsf.gdb.internal.memory.GdbMemoryBlockRetrieval;
import org.eclipse.cdt.dsf.gdb.service.command.IGDBControl;
import org.eclipse.cdt.dsf.mi.service.IMIProcesses;
import org.eclipse.cdt.dsf.mi.service.MIProcesses;
@ -117,7 +118,7 @@ public class GdbLaunch extends DsfLaunch
ICommandControlService commandControl = fTracker.getService(ICommandControlService.class);
IMIProcesses procService = fTracker.getService(IMIProcesses.class);
if (commandControl != null && procService != null) {
fMemRetrieval = new DsfMemoryBlockRetrieval(
fMemRetrieval = new GdbMemoryBlockRetrieval(
GdbLaunchDelegate.GDB_DEBUG_MODEL_ID, getLaunchConfiguration(), fSession);
fSession.registerModelAdapter(IMemoryBlockRetrieval.class, fMemRetrieval);

View file

@ -18,6 +18,8 @@ import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.service.IMemory;
import org.eclipse.cdt.dsf.debug.service.IMemorySpaces.IMemorySpaceDMContext;
import org.eclipse.cdt.dsf.gdb.internal.memory.GdbMemoryBlock.MemorySpaceDMContext;
import org.eclipse.cdt.dsf.mi.service.IMIContainerDMContext;
import org.eclipse.cdt.dsf.mi.service.IMIExecutionDMContext;
import org.eclipse.cdt.dsf.mi.service.MIMemory;
@ -68,6 +70,12 @@ public class GDBMemory_7_0 extends MIMemory {
// Return any thread... let's take the first one.
if (execCtxs != null && execCtxs.length > 0) {
threadOrMemoryDmc = execCtxs[0];
// Not so fast, Charlie. The context we were given may have
// a memory space qualifier. We need to preserve it.
if (dmc instanceof IMemorySpaceDMContext) {
threadOrMemoryDmc = new MemorySpaceDMContext(getSession().getId(), ((IMemorySpaceDMContext)dmc).getMemorySpaceId(), threadOrMemoryDmc);
}
}
}
}
@ -90,6 +98,12 @@ public class GDBMemory_7_0 extends MIMemory {
// Return any thread... let's take the first one.
if (execCtxs != null && execCtxs.length > 0) {
threadOrMemoryDmc = execCtxs[0];
// Not so fast, Charlie. The context we were given may have
// a memory space qualifier. We need to preserve it.
if (dmc instanceof IMemorySpaceDMContext) {
threadOrMemoryDmc = new MemorySpaceDMContext(getSession().getId(), ((IMemorySpaceDMContext)dmc).getMemorySpaceId(), threadOrMemoryDmc);
}
}
}
}

View file

@ -87,8 +87,9 @@ public class DsfMemoryBlock extends PlatformObject implements IMemoryBlockExtens
* @param address - the actual memory block start address
* @param word_size - the number of bytes per address
* @param length - the requested block length (could be 0)
* @since 2.1
*/
DsfMemoryBlock(DsfMemoryBlockRetrieval retrieval, IMemoryDMContext context, String modelId, String expression, BigInteger address, int word_size, long length) {
protected DsfMemoryBlock(DsfMemoryBlockRetrieval retrieval, IMemoryDMContext context, String modelId, String expression, BigInteger address, int word_size, long length) {
fLaunch = retrieval.getLaunch();
fDebugTarget = retrieval.getDebugTarget();
fRetrieval = retrieval;
@ -121,7 +122,7 @@ public class DsfMemoryBlock extends PlatformObject implements IMemoryBlockExtens
/* (non-Javadoc)
* @see org.eclipse.core.runtime.PlatformObject#getAdapter(java.lang.Class)
*/
@SuppressWarnings("unchecked")
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
public Object getAdapter(Class adapter) {
if (adapter.isAssignableFrom(DsfMemoryBlockRetrieval.class)) {
@ -557,7 +558,7 @@ public class DsfMemoryBlock extends PlatformObject implements IMemoryBlockExtens
// Helper functions
///////////////////////////////////////////////////////////////////////////
/*
/**
* The real thing. Since the original call is synchronous (from a platform
* Job), we use a Query that will patiently wait for the underlying
* asynchronous calls to complete before returning.
@ -566,8 +567,9 @@ public class DsfMemoryBlock extends PlatformObject implements IMemoryBlockExtens
* @param length
* @return MemoryByte[]
* @throws DebugException
* @since 2.1
*/
private MemoryByte[] fetchMemoryBlock(BigInteger bigAddress, final long length) throws DebugException {
protected MemoryByte[] fetchMemoryBlock(BigInteger bigAddress, final long length) throws DebugException {
// For the IAddress interface
final Addr64 address = new Addr64(bigAddress);
@ -605,13 +607,15 @@ public class DsfMemoryBlock extends PlatformObject implements IMemoryBlockExtens
}
}
/* Writes an array of bytes to memory.
/**
* Writes an array of bytes to memory.
*
* @param offset
* @param bytes
* @throws DebugException
*/
private void writeMemoryBlock(final long offset, final byte[] bytes) throws DebugException {
* @since 2.1
*/
protected void writeMemoryBlock(final long offset, final byte[] bytes) throws DebugException {
// For the IAddress interface
final Addr64 address = new Addr64(fBaseAddress);
@ -707,4 +711,13 @@ public class DsfMemoryBlock extends PlatformObject implements IMemoryBlockExtens
public String getUpdatePolicyDescription(String id) {
return id;
}
/**
* Get the context specified at construction.
*
* @since 2.1
*/
protected IMemoryDMContext getContext() {
return fContext;
}
}

View file

@ -230,7 +230,14 @@ public class DsfMemoryBlockRetrieval extends PlatformObject implements IMemoryBl
}
}
private void createBlocksFromConfiguration(IMemoryDMContext memoryCtx, String memento) throws CoreException {
/**
* Create memory blocks based on the given memento (obtained from the launch
* configuration) and add them to the platform's IMemoryBlockManager. The
* memento was previously created by {@link #getMemento()}
*
* @since 2.1
*/
protected void createBlocksFromConfiguration(IMemoryDMContext memoryCtx, String memento) throws CoreException {
// Parse the memento and validate its type
Element root = DebugPlugin.parseDocument(memento);
@ -280,6 +287,15 @@ public class DsfMemoryBlockRetrieval extends PlatformObject implements IMemoryBl
}
}
/**
* Create a memento to represent all active blocks created by this retrieval
* object (blocks currently registered with the platform's
* IMemoryBlockManager). We will be expected to recreate the blocks in
* {@link #createBlocksFromConfiguration(IMemoryDMContext, String)}.
*
* @return a string memento
* @throws CoreException
*/
public String getMemento() throws CoreException {
IMemoryBlock[] blocks = DebugPlugin.getDefault().getMemoryBlockManager().getMemoryBlocks(this);
Document document = DebugPlugin.newDocument();
@ -355,11 +371,8 @@ public class DsfMemoryBlockRetrieval extends PlatformObject implements IMemoryBl
return true;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.debug.core.model.IMemoryBlockRetrieval#getMemoryBlock(long,
* long)
/* (non-Javadoc)
* @see org.eclipse.debug.core.model.IMemoryBlockRetrieval#getMemoryBlock(long, long)
*/
public IMemoryBlock getMemoryBlock(final long startAddress, final long length) throws DebugException {
throw new DebugException(new Status(
@ -457,7 +470,10 @@ public class DsfMemoryBlockRetrieval extends PlatformObject implements IMemoryBl
// Helper functions
///////////////////////////////////////////////////////////////////////////
private BigInteger resolveMemoryAddress(final IDMContext dmc, final String expression) throws DebugException {
/**
* @since 2.1
*/
protected BigInteger resolveMemoryAddress(final IDMContext dmc, final String expression) throws DebugException {
// Use a Query to "synchronize" the downstream calls
Query<BigInteger> query = new Query<BigInteger>() {
@ -502,5 +518,15 @@ public class DsfMemoryBlockRetrieval extends PlatformObject implements IMemoryBl
"Error evaluating memory address (ExecutionException).", e)); //$NON-NLS-1$
}
}
/**
* Return the model ID specified at construction
*
* @since 2.1
*/
protected String getModelId() {
return fModelId;
}
}

View file

@ -0,0 +1,79 @@
/*******************************************************************************
* Copyright (c) 2010, Texas Instruments, Freescale Semiconductor 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:
* Texas Instruments, Freescale Semiconductor - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.service;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.service.IMemory.IMemoryDMContext;
import org.eclipse.cdt.dsf.service.IDsfService;
import org.eclipse.core.runtime.CoreException;
/**
* A memory service that is memory space aware.
*
* <p>
* Memory contexts are not meant to be represented in tree or table views, so it
* doesn't need to implement IDMService interface.
*
* @author Alain Lee and John Cortell
* @since 2.1
*/
public interface IMemorySpaces extends IDsfService{
public interface IMemorySpaceDMContext extends IMemoryDMContext {
public String getMemorySpaceId();
}
/**
* Optionally provides the string encoding of a memory space qualified
* address. CDT provides a default encoding of
* [memory-space-id]:[expression]. If this is adequate, the client can
* return null from this method. This method is called when having to
* represent a memory-space qualified address as a single string.
*
* @param expression
* the expression representing a location within a memory space.
* This can be a simple numeric expression like "0x10000" or
* something more complex "$EAX+(gCustomerCount*100)".
* @param memorySpaceID
* a string which represents the memory space
* @return the encoded string representation of the address, or null to
* indicate no custom encoding is required
*/
String encodeAddress(String expression, String memorySpaceID);
/**
* The inverse of {@link #encodeAddress(String, String)}. Client should
* provide decoding if it provides encoding. Conversely, it should not
* provide decoding if it doesn't provide encoding.
*
* @param str
* the encoded string
* @return the result of decoding the string into its components, or null to
* indicate no custom decoding is required
* @throws CoreException
* if decoding and string is not in the expected format
*/
DecodeResult decodeAddress(String str) throws CoreException;
interface DecodeResult {
String getMemorySpaceId();
String getExpression();
}
/**
* Provides the memory spaces available in the given context.
*
* @param ctx a DM context
* @param rm the asynchronous data request monitor
*/
void getMemorySpaces(IDMContext context, final DataRequestMonitor<String[]> rm);
}