protected static final boolean DISABLE_STRONG_UPDATES = false;
protected static final boolean DISABLE_GLOBAL_SWEEP = false;
- // a special out-of-scope temp
- protected static final TempDescriptor tdReturn = new TempDescriptor("_Return___");
+ // a special out-of-scope temps
+ protected static TempDescriptor tdReturn;
+ protected static TempDescriptor tdStrLiteralBytes;
+
+ public static void initOutOfScopeTemps() {
+ tdReturn = new TempDescriptor("_Return___");
+
+ tdStrLiteralBytes =
+ new TempDescriptor("_strLiteralBytes___",
+ new TypeDescriptor(TypeDescriptor.CHAR).makeArray( state )
+ );
+ }
// predicate constants
public static final ExistPred predTrue = ExistPred.factory(); // if no args, true
//
////////////////////////////////////////////////////
+ public void assignTempEqualToStringLiteral(TempDescriptor x,
+ AllocSite asStringLiteral,
+ AllocSite asStringLiteralBytes,
+ FieldDescriptor fdStringBytesField) {
+ // model this to get points-to information right for
+ // pointers to string literals, even though it doesn't affect
+ // reachability paths in the heap
+ assignTempEqualToNewAlloc( x,
+ asStringLiteral );
+
+ assignTempEqualToNewAlloc( tdStrLiteralBytes,
+ asStringLiteralBytes );
+
+ assignTempXFieldFEqualToTempY( x,
+ fdStringBytesField,
+ tdStrLiteralBytes,
+ null );
+ }
+
+
public void assignTempXEqualToTempY(TempDescriptor x,
TempDescriptor y) {
assignTempXEqualToCastedTempY(x, y, null);
private static boolean resolveMethodDebugDOTpruneGarbage = true;
private static boolean resolveMethodDebugDOThideReach = true;
private static boolean resolveMethodDebugDOThideSubsetReach = true;
- private static boolean resolveMethodDebugDOThidePreds = true;
- private static boolean resolveMethodDebugDOThideEdgeTaints = false;
+ private static boolean resolveMethodDebugDOThidePreds = false;
+ private static boolean resolveMethodDebugDOThideEdgeTaints = true;
static String debugGraphPrefix;
static int debugCallSiteVisitCounter;
new Hashtable< RefEdge, Set<RefSrcNode> >();
+
Iterator meItr = rgCallee.id2hrn.entrySet().iterator();
while( meItr.hasNext() ) {
Map.Entry me = (Map.Entry)meItr.next();
// should have, and it is inefficient to find this again later
ExistPredSet predsIfSatis =
hrnCallee.getPreds().isSatisfiedBy(this,
- callerNodeIDsCopiedToCallee
- );
+ callerNodeIDsCopiedToCallee,
+ null);
if( predsIfSatis != null ) {
calleeNodesSatisfied.put(hrnCallee, predsIfSatis);
predsIfSatis =
stateCallee.getPreds().isSatisfiedBy(this,
- callerNodeIDsCopiedToCallee
- );
+ callerNodeIDsCopiedToCallee,
+ null);
if( predsIfSatis != null ) {
Hashtable<ReachState, ExistPredSet> calleeStatesSatisfied =
predsIfSatis =
hrnSrcCallee.getPreds().isSatisfiedBy(this,
- callerNodeIDsCopiedToCallee
- );
+ callerNodeIDsCopiedToCallee,
+ null);
if( predsIfSatis != null ) {
calleeNodesSatisfied.put(hrnSrcCallee, predsIfSatis);
} else {
} else {
// hrnSrcCallee is out-of-context
-
assert !calleeEdges2oocCallerSrcMatches.containsKey(reCallee);
Set<RefSrcNode> rsnCallers = new HashSet<RefSrcNode>();
- // is the target node in the caller?
- HeapRegionNode hrnDstCaller = this.id2hrn.get(hrnCallee.getID() );
- if( hrnDstCaller == null ) {
- continue;
- }
-
- Iterator<RefEdge> reDstItr = hrnDstCaller.iteratorToReferencers();
- while( reDstItr.hasNext() ) {
- // the edge and field (either possibly null) must match
- RefEdge reCaller = reDstItr.next();
-
- if( !reCaller.typeEquals(reCallee.getType() ) ||
- !reCaller.fieldEquals(reCallee.getField() )
- ) {
- continue;
- }
-
- RefSrcNode rsnCaller = reCaller.getSrc();
- if( rsnCaller instanceof VariableNode ) {
-
- // a variable node matches an OOC region with null type
- if( hrnSrcCallee.getType() != null ) {
- continue;
- }
-
- } else {
- // otherwise types should match
- HeapRegionNode hrnCallerSrc = (HeapRegionNode) rsnCaller;
- if( hrnSrcCallee.getType() == null ) {
- if( hrnCallerSrc.getType() != null ) {
- continue;
- }
- } else {
- if( !hrnSrcCallee.getType().equals(hrnCallerSrc.getType() ) ) {
- continue;
- }
- }
- }
-
- rsnCallers.add(rsnCaller);
- matchedOutOfContext = true;
- }
+ // use the isSatisfiedBy with a non-null callers set to capture
+ // nodes in the caller that match the predicates
+ reCallee.getPreds().isSatisfiedBy( this,
+ callerNodeIDsCopiedToCallee,
+ rsnCallers );
if( !rsnCallers.isEmpty() ) {
+ matchedOutOfContext = true;
calleeEdges2oocCallerSrcMatches.put(reCallee, rsnCallers);
}
}
predsIfSatis =
reCallee.getPreds().isSatisfiedBy(this,
- callerNodeIDsCopiedToCallee
- );
+ callerNodeIDsCopiedToCallee,
+ null);
+
if( predsIfSatis != null ) {
calleeEdgesSatisfied.put(reCallee, predsIfSatis);
predsIfSatis =
stateCallee.getPreds().isSatisfiedBy(this,
- callerNodeIDsCopiedToCallee
- );
+ callerNodeIDsCopiedToCallee,
+ null);
if( predsIfSatis != null ) {
Hashtable<ReachState, ExistPredSet> calleeStatesSatisfied =
predsIfSatis =
tCallee.getPreds().isSatisfiedBy(this,
- callerNodeIDsCopiedToCallee
- );
+ callerNodeIDsCopiedToCallee,
+ null);
if( predsIfSatis != null ) {
Hashtable<Taint, ExistPredSet> calleeTaintsSatisfied =
//System.out.println( "*** Asking if A is no smaller than B ***" );
-
Iterator iA = rgA.id2hrn.entrySet().iterator();
while( iA.hasNext() ) {
Map.Entry meA = (Map.Entry)iA.next();
System.out.println(" regions smaller");
return false;
}
-
- //HeapRegionNode hrnB = rgB.id2hrn.get( idA );
- /* NOT EQUALS, NO SMALLER THAN!
- if( !hrnA.equalsIncludingAlphaAndPreds( hrnB ) ) {
- System.out.println( " regions smaller" );
- return false;
- }
- */
}
// this works just fine, no smaller than
System.out.println(" edges smaller:");
return false;
}
-
- // REMEMBER, IS NO SMALLER THAN
- /*
- System.out.println( " edges smaller" );
- return false;
- }
- */
-
}
}
try {
// remove all non-word characters from the graph name so
// the filename and identifier in dot don't cause errors
- graphName = graphName.replaceAll("[\\W]", "");
+ // jjenista - also replace underscore '_' to prevent some
+ // really, really long names from IHMS debugging
+ graphName = graphName.replaceAll("[\\W_]", "");
BufferedWriter bw =
new BufferedWriter(new FileWriter(graphName+".dot") );
public Set<TempDescriptor> getInaccessibleVars() {
return inaccessibleVars;
}
+
+
+
+
+ public Set<Alloc> canPointTo( TempDescriptor x ) {
+
+ if( !DisjointAnalysis.shouldAnalysisTrack( x.getType() ) ) {
+ // if we don't care to track it, return null which means
+ // "a client of this result shouldn't care either"
+ return HeapAnalysis.DONTCARE_PTR;
+ }
+
+ Set<Alloc> out = new HashSet<Alloc>();
+
+ VariableNode vn = getVariableNodeNoMutation( x );
+ if( vn == null ) {
+ // the empty set means "can't point to anything"
+ return out;
+ }
+
+ Iterator<RefEdge> edgeItr = vn.iteratorToReferencees();
+ while( edgeItr.hasNext() ) {
+ HeapRegionNode hrn = edgeItr.next().getDst();
+ out.add( hrn.getAllocSite() );
+ }
+
+ return out;
+ }
+
+
+
+ public Hashtable< Alloc, Set<Alloc> > canPointTo( TempDescriptor x,
+ String field,
+ TypeDescriptor fieldType ) {
+
+ if( !DisjointAnalysis.shouldAnalysisTrack( x.getType() ) ) {
+ // if we don't care to track it, return null which means
+ // "a client of this result shouldn't care either"
+ return HeapAnalysis.DONTCARE_DREF;
+ }
+
+ Hashtable< Alloc, Set<Alloc> > out = new Hashtable< Alloc, Set<Alloc> >();
+
+ VariableNode vn = getVariableNodeNoMutation( x );
+ if( vn == null ) {
+ // the empty table means "x can't point to anything"
+ return out;
+ }
+
+ Iterator<RefEdge> edgeItr = vn.iteratorToReferencees();
+ while( edgeItr.hasNext() ) {
+ HeapRegionNode hrn = edgeItr.next().getDst();
+ Alloc key = hrn.getAllocSite();
+
+ if( !DisjointAnalysis.shouldAnalysisTrack( fieldType ) ) {
+ // if we don't care to track it, put no entry which means
+ // "a client of this result shouldn't care either"
+ out.put( key, HeapAnalysis.DONTCARE_PTR );
+ continue;
+ }
+
+ Set<Alloc> moreValues = new HashSet<Alloc>();
+ Iterator<RefEdge> edgeItr2 = hrn.iteratorToReferencees();
+ while( edgeItr2.hasNext() ) {
+ RefEdge edge = edgeItr2.next();
+
+ if( field.equals( edge.getField() ) ) {
+ moreValues.add( edge.getDst().getAllocSite() );
+ }
+ }
+
+ if( out.containsKey( key ) ) {
+ out.get( key ).addAll( moreValues );
+ } else {
+ out.put( key, moreValues );
+ }
+ }
+
+ return out;
+ }
+
+
+
+ // for debugging
+ public TempDescriptor findVariableByName( String name ) {
+
+ for( TempDescriptor td: td2vn.keySet() ) {
+ if( td.getSymbol().contains( name ) ) {
+ return td;
+ }
+ }
+
+ return null;
+ }
}
projects / IRC.git / blobdiff