Java GotoStmt类代码示例

import soot.jimple.GotoStmt; //导入依赖的package包/类
private void instrumentEachBranchAccess(Body body, Unit unit){
	SootClass sootClass = Scene.v().getSootClass(
			UtilInstrumenter.JAVA_CLASS_FOR_PATH_INSTRUMENTATION);
	
	// Create the method invocation
	SootMethod createAndAdd = sootClass.getMethod("reportConditionOutcomeSynchronous",
			Collections.<Type>singletonList(BooleanType.v()));
	StaticInvokeExpr sieThen = Jimple.v().newStaticInvokeExpr(
			createAndAdd.makeRef(), IntConstant.v(1));
	StaticInvokeExpr sieElse = Jimple.v().newStaticInvokeExpr(
			createAndAdd.makeRef(), IntConstant.v(0));
	Unit sieThenUnit = Jimple.v().newInvokeStmt(sieThen);
	sieThenUnit.addTag(new InstrumentedCodeTag());
	Unit sieElseUnit = Jimple.v().newInvokeStmt(sieElse);
	sieElseUnit.addTag(new InstrumentedCodeTag());
	
	//treatment of target statement ("true"-branch)
	IfStmt ifStmt = (IfStmt)unit;
	Stmt targetStmt = ifStmt.getTarget();
	if(!branchTargetStmt.contains(targetStmt.toString())) {
		branchTargetStmt.add(sieThenUnit.toString());
		body.getUnits().insertBefore(sieThenUnit, targetStmt);
		
		NopStmt nop = Jimple.v().newNopStmt();
		GotoStmt gotoNop = Jimple.v().newGotoStmt(nop);
		body.getUnits().insertBeforeNoRedirect(nop, targetStmt);
		body.getUnits().insertBeforeNoRedirect(gotoNop, sieThenUnit);
	}
	
	
	//treatment of "else"-branch
	body.getUnits().insertAfter(sieElseUnit, unit);
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
public void caseGotoStmt(GotoStmt stmt) {
	Unit target = stmt.getTarget();
	
	vtp.suggestVariableName("target");
	String targetName = vtp.getLastAssignedVarName();
	p.println("Unit "+targetName+"=" + nameOfJumpTarget(target) + ";");
	
	printStmt(stmt,targetName);
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
@Override
protected void internalTransform(Body body, String phaseName,
		Map<String, String> options) {
	Iterator<Unit> it = body.getUnits().snapshotIterator();
	while (it.hasNext()) {
		Unit u = it.next();
		if (u instanceof GotoStmt) {
			GotoStmt gtStmt = (GotoStmt) u;
			if (gtStmt.getTarget() instanceof AssignStmt) {
				AssignStmt assign = (AssignStmt) gtStmt.getTarget();
				if (assign.getRightOp() instanceof CastExpr) {
					CastExpr ce = (CastExpr) assign.getRightOp();
					// We have goto that ends up at a cast statement
					Unit nextStmt = body.getUnits().getSuccOf(assign);
					if (nextStmt instanceof ReturnStmt) {
						ReturnStmt retStmt = (ReturnStmt) nextStmt;
						if (retStmt.getOp() == assign.getLeftOp()) {
							// We need to replace the GOTO with the return
							ReturnStmt newStmt = (ReturnStmt) retStmt.clone();
							newStmt.setOp(ce.getOp());

							for (Trap t : body.getTraps())
								for (UnitBox ubox : t.getUnitBoxes())
									if (ubox.getUnit() == gtStmt)
										ubox.setUnit(newStmt);
							
							while (!gtStmt.getBoxesPointingToThis().isEmpty())
								gtStmt.getBoxesPointingToThis().get(0).setUnit(newStmt);
							body.getUnits().swapWith(gtStmt, newStmt);
						}
					}
				}
			}
		}
	}
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
@Override
public void caseGotoStmt(GotoStmt arg0) {		
	injectLabelStatements(arg0);
	String labelName = GlobalsCache.v().getUnitLabel(
			(Stmt) arg0.getTarget());
	this.boogieStatements.add(this.pf.mkGotoStatement(labelName));
	// if (labelName.contains("block324")) throw new
	// RuntimeException("there it is!");
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
public static boolean isBranch(Unit u){
    if(u instanceof IfStmt ||
            u instanceof GotoStmt ||
            u instanceof SwitchStmt ||
            u instanceof ThrowStmt ||
            u instanceof ReturnStmt ||
            u instanceof ReturnVoidStmt)
        return true;
    return false;
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
private Unit seekTarget(Unit u) {
	int count = 10;
	Unit target = u;
	while(count-- > 0 && target != null && target instanceof GotoStmt) {
		target = ((GotoStmt) target).getTarget();
	}
	return target;
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
@Override
public void caseGotoStmt(GotoStmt stmt) {
	throw new RuntimeException("todo");
	
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
public void caseGotoStmt(GotoStmt stmt) {
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
@Override
public void caseGotoStmt(GotoStmt stmt) {
	Stmt target = (Stmt) stmt.getTarget();
       addInsn(buildGotoInsn(target), stmt);
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
private boolean isInstanceofFlowChange(Unit u) {
	if (u instanceof GotoStmt || isInstanceofReturn(u))
		return true;
	return false;
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
private GotoStmt gotoStatement() {
    GotoStmt go = Jimple.v().newGotoStmt(targetInstruction.getUnit());
    setUnit(go);
    addTags(go);
    return go;
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
@Override
public void caseGotoStmt(GotoStmt s) {
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
private boolean isJumpStmt(Stmt st) {
	return ( st instanceof ThrowStmt || st instanceof GotoStmt || st instanceof ReturnStmt);	
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
@Override
public void run(SpyResult result, AppDescription app) {
	Scene scene = Scene.v();
	int count = 0;
	Iterator<SootClass> classes = scene.getApplicationClasses().iterator();
	while(classes.hasNext()) {
		SootClass clazz = classes.next();
		for (SootMethod method : clazz.getMethods()) {
			if(!method.hasActiveBody()) continue;
			Body body = method.getActiveBody();
			Chain<Unit> code = body.getUnits();
			Iterator<Trap> traps = body.getTraps().iterator();
			while(traps.hasNext()) {
				boolean bogus = false;
				Trap trap = traps.next();
				Unit lastOfCatch = trap.getEndUnit();
				// System.err.println("Last of catch " + lastOfCatch);
				Unit firstHandler = trap.getHandlerUnit();
				// System.err.println("First of handler " + firstHandler);
				Unit nextHandler = code.getSuccOf(firstHandler);
				// System.err.println("Next handler " + nextHandler);
				if (nextHandler == null) continue;
				Unit handlerTarget = seekTarget(nextHandler);
				if (handlerTarget == null) continue;
				// System.err.println("handler goto " + handlerTarget + handlerTarget.getClass());
				if (handlerTarget instanceof ReturnVoidStmt) {
					bogus = true;
				} else if (lastOfCatch instanceof GotoStmt) {
					bogus = handlerTarget.equals(seekTarget(lastOfCatch));
				} else {
					if (!lastOfCatch.fallsThrough()) continue;
					Unit targetCatch = code.getSuccOf(lastOfCatch);
					if (targetCatch == null) continue; // This had to be a return.
					// System.err.println("Target 1" + targetCatch);
					if (handlerTarget.equals(targetCatch)) bogus = true;
					if (targetCatch.fallsThrough() && !targetCatch.branches()) {
						targetCatch = code.getSuccOf(targetCatch);
						// System.err.println("Target 2" + targetCatch);
						if (handlerTarget.equals(targetCatch)) bogus = true;
					}
				}
				
				// System.err.println(bogus);
				if (bogus) {
					BytecodeOffsetTag tag = (BytecodeOffsetTag) firstHandler.getTag("BytecodeOffsetTag");
					int offset = (tag == null) ? -1 : tag.getBytecodeOffset();
					result.setCustomResult(listItem("android.empty.exception.class",count),clazz.getName());
					result.setCustomResult(listItem("android.empty.exception.method",count),method.getSubSignature());
					result.setCustomResult(listItem("android.empty.exception.pos",count),offset);
					count++;
				}
				
			}
			result.setCustomResult("android.empty.exception.error", count > 0);
			result.setCustomResult("android.empty.exception.count", count);
		}
	}
}
 

import soot.jimple.GotoStmt; //导入依赖的package包/类
@Override
public void caseGotoStmt(GotoStmt stmt) {
}