If the target is suspended by a line breakpoint the source manager tries to retrieve the file resource from the breakpoint marker.

debug/org.eclipse.cdt.debug.core/ChangeLog

@@ -1,3 +1,9 @@
+2003-10-17 Mikhail Khodjaiants
+	If the target is suspended by a line breakpoint the source manager tries to retrieve 
+	the file resource from the breakpoint marker.
+	* CSourceManager.java
+	* CDebugTarget.java
+
 2003-10-15 Mikhail Khodjaiants
 	Improving the source search algorithms.
 	* CDirectorySourceLocation.java

debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CDebugTarget.java

@@ -442,6 +442,13 @@ public class CDebugTarget extends CDebugElement
 		ISourceLocator locator = getLaunch().getSourceLocator();
 		if ( locator instanceof IAdaptable )
 		{
+			ICSourceLocator clocator = (ICSourceLocator)((IAdaptable)locator).getAdapter( ICSourceLocator.class );
+			if ( clocator instanceof IAdaptable )
+			{
+				CSourceManager sm = (CSourceManager)((IAdaptable)clocator).getAdapter( CSourceManager.class );
+				if ( sm != null )
+					sm.setDebugTarget( this );
+			}
 			IResourceChangeListener listener = (IResourceChangeListener)((IAdaptable)locator).getAdapter( IResourceChangeListener.class );
 			if ( listener != null )
 				CCorePlugin.getWorkspace().addResourceChangeListener( listener );
@@ -2777,6 +2784,26 @@ public class CDebugTarget extends CDebugElement
 		return fRunningInfo;
 	}
 
+	public IFile getCurrentBreakpointFile()
+	{
+		Object info = getCurrentStateInfo();
+		if ( info instanceof ICDIBreakpointHit )
+		{
+			ICDIBreakpoint cdiBreakpoint = ((ICDIBreakpointHit)info).getBreakpoint();
+			if ( cdiBreakpoint != null )
+			{
+				IBreakpoint breakpoint = findBreakpoint( cdiBreakpoint );
+				if ( breakpoint instanceof ICLineBreakpoint )
+				{
+					IResource resource = ((ICLineBreakpoint)breakpoint).getMarker().getResource();
+					if ( resource instanceof IFile )
+						return (IFile)resource;
+				}
+			}
+		}
+		return null;
+	}
+
 	protected void setRunningInfo( RunningInfo info )
 	{
 		fRunningInfo = info;
@@ -2802,6 +2829,7 @@ public class CDebugTarget extends CDebugElement
 		}
 		setRunningInfo( info );
 	}
+
 /*
 	private boolean applyDeferredBreakpoints()
 	{

debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/sourcelookup/CSourceManager.java

@@ -15,6 +15,7 @@ import org.eclipse.cdt.debug.core.model.IStackFrameInfo;
 import org.eclipse.cdt.debug.core.sourcelookup.ICSourceLocation;
 import org.eclipse.cdt.debug.core.sourcelookup.ICSourceLocator;
 import org.eclipse.cdt.debug.core.sourcelookup.ISourceMode;
+import org.eclipse.cdt.debug.internal.core.model.CDebugTarget;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IResourceChangeListener;
@@ -39,7 +40,8 @@ public class CSourceManager implements ICSourceLocator,
 	private ISourceLocator fSourceLocator = null;
 	private int fMode = ISourceMode.MODE_SOURCE;
 	private int fRealMode = fMode;
-	private ILaunch fLaunch = null; 
+	private ILaunch fLaunch = null;
+	private CDebugTarget fDebugTarget = null; 
 	
 	/**
 	 * Constructor for CSourceManager.
@@ -132,6 +134,8 @@ public class CSourceManager implements ICSourceLocator,
 	 */
 	public Object getAdapter( Class adapter )
 	{
+		if ( adapter.equals( CSourceManager.class ) )
+			return this;
 		if ( adapter.equals( IResourceChangeListener.class ) &&
 			 fSourceLocator instanceof IResourceChangeListener )
 			return fSourceLocator;
@@ -148,7 +152,12 @@ public class CSourceManager implements ICSourceLocator,
 		
 		if ( getMode() == ISourceMode.MODE_SOURCE && getSourceLocator() != null )
 		{
-			result = getSourceLocator().getSourceElement( stackFrame );
+			// if the target is suspended by a line breakpoint the source manager 
+			// tries to retrieve the file resource from the breakpoint marker.
+			if ( getDebugTarget() != null )
+				result = getDebugTarget().getCurrentBreakpointFile();
+			if ( result == null )
+				result = getSourceLocator().getSourceElement( stackFrame );
 		}
 		if ( result == null && 
 			 ( autoDisassembly || getMode() == ISourceMode.MODE_DISASSEMBLY ) && 
@@ -256,4 +265,14 @@ public class CSourceManager implements ICSourceLocator,
 	{
 		return ( getCSourceLocator() != null ) ? getCSourceLocator().getProject() :  null;
 	}
+
+	public void setDebugTarget( CDebugTarget target )
+	{
+		fDebugTarget = target;
+	}
+
+	protected CDebugTarget getDebugTarget()
+	{
+		return fDebugTarget;
+	}
 }