src/org/ibex/arenaj/Main.java

   1 package org.ibex.arenaj;
   2 import soot.*;
   3 import soot.jimple.*;
   4 import soot.util.*;
   5 import java.io.*;
   6 import java.util.*;
   7
   8 public class Main extends SceneTransformer {
   9
  10     public static final int initialSize = 100;
  11
  12     private static Main instance = new Main();
  13     private Main() { }
  14     public static Main v() { return instance; }
  15
  16     public static void main(String[] args) throws Exception {
  17         if(args.length == 0) {
  18             System.out.println("Syntax: java " + v().getClass().getName() + " [soot options]");
  19             System.exit(0);
  20         }
  21         PackManager.v().getPack("wjtp").add(new Transform("wjtp.tx", Main.v()));
  22         String[] args2 = new String[args.length + 14];
  23         System.arraycopy(args, 0, args2, 0, args.length-1);
  24         String sootcp =
  25             System.getProperty("java.class.path") +
  26             File.pathSeparator +
  27             System.getProperty("sun.boot.class.path");
  28         String extDirs = System.getProperty("java.ext.dirs");
  29         if (extDirs != null) {
  30             StringTokenizer st = new StringTokenizer(extDirs, File.pathSeparatorChar+"");
  31             while(st.hasMoreTokens()) {
  32                 String goo = st.nextToken();
  33                 System.out.println("goo " + goo);
  34                 File f = new File(goo);
  35                 if (!f.exists() || !f.isDirectory()) continue;
  36                 String[] jars = f.list();
  37                 for(int i=0; i<jars.length; i++)
  38                     sootcp += File.pathSeparator + f.getPath() + File.separatorChar + jars[i];
  39             }
  40         }
  41         args2[args.length - 1] = "-w";
  42         args2[args.length + 0] = "-p";
  43         args2[args.length + 1] = "cg";
  44         args2[args.length + 2] = "enabled:false";
  45         args2[args.length + 3] = "-p";
  46         args2[args.length + 4] = "wjap";
  47         args2[args.length + 5] = "enabled:false";
  48         args2[args.length + 6] = "-p";
  49         args2[args.length + 7] = "jtp";
  50         args2[args.length + 8] = "enabled:false";
  51         //args2[args.length + 9] = "-keep-line-number";
  52         args2[args.length + 9] = "-allow-phantom-refs";
  53         args2[args.length + 10] = "-allow-phantom-refs";
  54         args2[args.length + 11] = "-cp";
  55         args2[args.length + 12] = sootcp;
  56         System.out.println("sootcp => " + sootcp);
  57         args2[args.length + 13] = args[args.length-1];
  58         for(int i=0; i<args2.length; i++) System.out.println("args2["+i+"] = " + args2[i]);
  59         soot.Main.main(args2);
  60     }
  61
  62     static int tfr = 0;
  63     public static Local viaLocal(Value v, Body b) {
  64         Local l = Jimple.v().newLocal("tmpRef" + (tfr++), v.getType());
  65         b.getLocals().add(l);
  66         if (v instanceof IdentityRef) {
  67             b.getUnits().addFirst(Jimple.v().newIdentityStmt(l, v));
  68         } else {
  69             b.getUnits().addFirst(Jimple.v().newAssignStmt(l, v));
  70         }
  71         return l;
  72     }
  73     public static Local viaLocal(Value v, Body b, Unit u) {
  74         Local l = Jimple.v().newLocal("tmpRef" + (tfr++), v.getType());
  75         b.getLocals().add(l);
  76         if (v instanceof IdentityRef) {
  77             b.getUnits().insertBefore(Jimple.v().newIdentityStmt(l, v), u);
  78         } else {
  79             b.getUnits().insertBefore(Jimple.v().newAssignStmt(l, v), u);
  80         }
  81         return l;
  82     }
  83
  84     HashMap map = new HashMap();
  85     HashSet size_added = new HashSet();
  86
  87     public boolean isGladiator(SootClass c) { return c.implementsInterface("org.ibex.arenaj.Gladiator"); }
  88     public boolean isGladiatorField(SootField f)
  89         { return isGladiator(f.getDeclaringClass()) && !f.getName().equals("this") && f.getName().indexOf('$')==-1; }
  90     public boolean isGladiatorFieldRef(SootFieldRef f) {
  91         return isGladiator(f.declaringClass()) && !f.name().equals("this") && f.name().indexOf('$')==-1;
  92     }
  93     public SootField getGladiatorField(SootField f) { return getGladiatorField(f.makeRef()); }
  94     public SootField getGladiatorField(SootFieldRef f) {
  95         SootClass c  = f.declaringClass();
  96         SootClass oc = Scene.v().getSootClass(c.getName().substring(0, c.getName().lastIndexOf('$')));
  97         String sig = f.declaringClass().getName()+"."+f.name();
  98         if (map.get(sig) != null) return (SootField)map.get(sig);
  99         Type t = f.type();
 100         if (t instanceof RefType && isGladiator(((RefType)t).getSootClass())) t = IntType.v();
 101         SootField nf = new SootField(c.getShortName().substring(c.getShortName().lastIndexOf('$')+1) + "$" + f.name(),
 102                                      t.makeArrayType(),
 103                                      0);
 104         oc.addField(nf);
 105
 106         Body body = getInitBody(oc);
 107         Expr newArr = Jimple.v().newNewArrayExpr(t, IntConstant.v(initialSize));
 108         Local newArrLocal = Jimple.v().newLocal("tmpRef" + (tfr++), f.type().makeArrayType());
 109         body.getLocals().add(newArrLocal);
 110         InstanceFieldRef ifr = Jimple.v().newInstanceFieldRef(thisLocal(c,body), nf.makeRef());
 111         body.getUnits().addFirst(Jimple.v().newAssignStmt(ifr, newArrLocal));
 112         body.getUnits().addFirst(Jimple.v().newAssignStmt(newArrLocal, newArr));
 113
 114         map.put(sig, nf);
 115         return nf;
 116     }
 117
 118     public Body getInitBody(SootClass c) {
 119         c.setApplicationClass();
 120         List list = new LinkedList();
 121         SootMethod m = c.getMethod("<init>", list);
 122         if (!m.hasActiveBody()) {
 123             JimpleBody b = (JimpleBody)Jimple.v().newBody(m);
 124             m.setActiveBody(b);
 125         }
 126         return m.getActiveBody();
 127     }
 128
 129     public Local thisLocal(SootClass c, Body b) { return viaLocal(Jimple.v().newThisRef(c.getType()), b); }
 130     public SootFieldRef getGladiatorFieldSizeRef(SootClass c) {
 131         SootClass mc = getParent(c);
 132         String name = c.getShortName().substring(c.getShortName().lastIndexOf('$')+1) + "$$size";
 133         if (map.get(name) == null) {
 134             SootField f = new SootField(name, IntType.v());
 135             mc.addField(f);
 136
 137             Body body = getInitBody(mc);
 138             InstanceFieldRef ifr = Jimple.v().newInstanceFieldRef(thisLocal(c,body), f.makeRef());
 139             body.getUnits().addFirst(Jimple.v().newAssignStmt(ifr, IntConstant.v(0)));
 140
 141             map.put(c, f);
 142         }
 143         return Scene.v().makeFieldRef(mc, name, IntType.v(), false);
 144     }
 145     public SootFieldRef getGladiatorFieldMaxRef(SootClass c) {
 146         SootClass mc = getParent(c);
 147         String name = c.getShortName().substring(c.getShortName().lastIndexOf('$')+1) + "$$max";
 148         if (map.get(name) == null) {
 149             SootField f = new SootField(name, IntType.v());
 150             mc.addField(f);
 151
 152             Body body = getInitBody(mc);
 153             InstanceFieldRef ifr = Jimple.v().newInstanceFieldRef(thisLocal(c,body), f.makeRef());
 154             body.getUnits().addFirst(Jimple.v().newAssignStmt(ifr, IntConstant.v(initialSize)));
 155
 156             map.put(c, f);
 157         }
 158         return Scene.v().makeFieldRef(mc, name, IntType.v(), false);
 159     }
 160
 161     public boolean isGladiatorType(Type t) { return (t instanceof RefType) && isGladiator(((RefType)t).getSootClass()); }
 162
 163
 164
 165
 166     boolean done = false;
 167     public void internalTransform(String phaseName, Map options) {
 168         System.out.println("begun");
 169         List ac = new LinkedList();
 170         for(Iterator it = Scene.v().getClasses().iterator(); it.hasNext();) {
 171             SootClass sc = (SootClass)it.next();
 172             sc.setLibraryClass();
 173         }
 174         for(Iterator it = Scene.v().getClasses().iterator(); it.hasNext();) {
 175             SootClass sc = (SootClass)it.next();
 176             if (isGladiator(sc)) {
 177                 System.out.println("  application class: " + sc.getName());
 178                 System.out.println("  application class: " + getParent(sc).getName());
 179                 sc.setApplicationClass();
 180                 getParent(sc).setApplicationClass();
 181                 ac.add(sc);
 182                 ac.add(getParent(sc));
 183                 for(Iterator i2 = sc.getMethods().iterator(); i2.hasNext();) {
 184                     SootMethod m = (SootMethod)i2.next();
 185                     if (m.isConcrete()) m.retrieveActiveBody();
 186                 }
 187                 for(Iterator i2 = getParent(sc).getMethods().iterator(); i2.hasNext();) {
 188                     SootMethod m = (SootMethod)i2.next();
 189                     if (m.isConcrete()) m.retrieveActiveBody();
 190                 }
 191             }
 192         }
 193         for(Iterator it = ac.iterator(); it.hasNext();) {
 194             SootClass sc = (SootClass)it.next();
 195             if (sc.isInterface()) continue;
 196             if (!isGladiator(sc)) continue;
 197             System.out.println("fixing Gladiator class: " + sc);
 198             fixClass(sc);
 199         }
 200         for(Iterator it = ac.iterator(); it.hasNext();) {
 201             SootClass sc = (SootClass)it.next();
 202             if (sc.isInterface()) continue;
 203             System.out.println("        updating class: " + sc);
 204             nuke(sc);
 205         }
 206     }
 207
 208     public SootClass getParent(SootClass sc) {
 209         return Scene.v().getSootClass(sc.getName().substring(0, sc.getName().lastIndexOf('$')));
 210     }
 211
 212     public void fixClass(SootClass sc) {
 213         SootClass mc = getParent(sc);
 214         String incFuncName = sc.getShortName().substring(sc.getShortName().lastIndexOf('$')+1) + "$$inc";
 215         SootMethod method = new SootMethod(incFuncName, new LinkedList(),
 216                                            IntType.v(), Modifier.PRIVATE,
 217                                            new LinkedList());
 218         mc.addMethod(method);
 219         Body body = Jimple.v().newBody(method);
 220         method.setActiveBody(body);
 221         ((JimpleBody)body).insertIdentityStmts();
 222         Local l = Jimple.v().newLocal("tmpRef" + (tfr++), IntType.v());
 223         body.getLocals().add(l);
 224         Local l2 = Jimple.v().newLocal("tmpRef" + (tfr++), IntType.v());
 225         body.getLocals().add(l2);
 226         Local l3 = Jimple.v().newLocal("tmpRef" + (tfr++), IntType.v());
 227         body.getLocals().add(l3);
 228         InstanceFieldRef sfr = Jimple.v().newInstanceFieldRef(body.getThisLocal(), getGladiatorFieldSizeRef(sc));
 229         body.getUnits().add(Jimple.v().newAssignStmt(l, sfr));
 230         body.getUnits().add(Jimple.v().newAssignStmt(l2, Jimple.v().newAddExpr(l, IntConstant.v(1))));
 231         InstanceFieldRef maxField = Jimple.v().newInstanceFieldRef(body.getThisLocal(), getGladiatorFieldMaxRef(sc));
 232         body.getUnits().add(Jimple.v().newAssignStmt(l3, maxField));
 233         Stmt stmt = Jimple.v().newReturnStmt(l2);
 234         body.getUnits().add(Jimple.v().newIfStmt(Jimple.v().newLtExpr(l2, l3), stmt));
 235
 236         Local l4 = Jimple.v().newLocal("tmpRef" + (tfr++), IntType.v());
 237         body.getLocals().add(l4);
 238         body.getUnits().add(Jimple.v().newAssignStmt(l4, Jimple.v().newShlExpr(l3, IntConstant.v(1))));
 239         body.getUnits().add(Jimple.v().newAssignStmt(maxField, l4));
 240
 241         for(Iterator it = sc.getFields().iterator(); it.hasNext();) {
 242             SootField f = getGladiatorField((SootField)it.next());
 243             InstanceFieldRef ifr = Jimple.v().newInstanceFieldRef(body.getThisLocal(), f.makeRef());
 244             Local ll0 = Jimple.v().newLocal("tmpRef" + (tfr++), f.getType());
 245             body.getLocals().add(ll0);
 246             body.getUnits().add(Jimple.v().newAssignStmt(ll0, ifr));
 247             Local ll = Jimple.v().newLocal("tmpRef" + (tfr++), f.getType());
 248             body.getLocals().add(ll);
 249             body.getUnits().add(Jimple.v().newAssignStmt(ll,
 250                                                          Jimple.v().newNewArrayExpr(((ArrayType)f.getType()).getElementType(),
 251                                                                                     l4)));
 252             Type ot = Scene.v().getSootClass("java.lang.Object").getType();
 253             List types = new LinkedList();
 254             types.add(ot);
 255             types.add(IntType.v());
 256             types.add(ot);
 257             types.add(IntType.v());
 258             types.add(IntType.v());
 259             SootMethodRef arrayCopy =
 260                 Scene.v().makeMethodRef(Scene.v().getSootClass("java.lang.System"),
 261                                         "arraycopy",
 262                                         types,
 263                                         VoidType.v(),
 264                                         true);
 265             List args = new LinkedList();
 266             args.add(ll0);
 267             args.add(IntConstant.v(0));
 268             args.add(ll);
 269             args.add(IntConstant.v(0));
 270             args.add(l3);
 271             body.getUnits().add(Jimple.v().newInvokeStmt(Jimple.v().newStaticInvokeExpr(arrayCopy, args)));
 272             body.getUnits().add(Jimple.v().newAssignStmt(ifr,ll));
 273         }
 274         for(Iterator it = sc.getMethods().iterator(); it.hasNext();) {
 275             SootMethod m = (SootMethod)it.next();
 276             if (!m.isConcrete()) continue;
 277             if (isGladiator(m.getDeclaringClass()) && m.getName().equals("<init>")) {
 278                 SootClass c = m.getDeclaringClass();
 279                 String name = c.getShortName().substring(c.getShortName().lastIndexOf('$')+1) + "$$$init";
 280                 List li = m.getParameterTypes();
 281                 li.remove(0);
 282                 li.add(IntType.v());
 283                 c.removeMethod(m);
 284                 SootMethod nm = new SootMethod(name, li, isGladiatorType(m.getReturnType()) ? IntType.v() : m.getReturnType());
 285                 JimpleBody bod = Jimple.v().newBody(nm);
 286                 getParent(c).addMethod(nm);
 287                 //bod.insertIdentityStmts();
 288                 bod.importBodyContentsFrom(m.getActiveBody());
 289                 nm.setActiveBody(bod);
 290                 continue;
 291             }
 292             System.out.println("examining " + sc.getName() + "." + m.getSignature());
 293             m.retrieveActiveBody();
 294             if (m.isStatic()) continue;
 295
 296             String name = sc.getShortName().substring(sc.getShortName().lastIndexOf('$')+1) + "$$" + m.getName();
 297             List list = new LinkedList();
 298             list.addAll(m.getParameterTypes());
 299             list.add(IntType.v());
 300             for(Iterator i = list.iterator(); i.hasNext();) System.out.println(i.next());
 301             SootMethod m2 = new SootMethod(name, list, m.getReturnType());
 302             getParent(sc).addMethod(m2);
 303
 304             JimpleBody ab = (JimpleBody)Jimple.v().newBody(m2);
 305             ab.importBodyContentsFrom(m.getActiveBody());
 306             m2.setActiveBody(ab);
 307             Local loc = Jimple.v().newLocal("tmpRef" + (tfr++), getParent(sc).getType());
 308             ab.getLocals().add(loc);
 309             // FIXME: insert assignment to this
 310
 311             for(Iterator z = ab.getLocals().iterator(); z.hasNext();) {
 312                 Local loc2 = (Local)z.next();
 313                 if (isGladiatorType(loc2.getType())) {
 314                     loc2.setType(IntType.v());
 315                 }
 316             }
 317
 318             Chain units = ab.getUnits();
 319             for(Iterator stmtIt = units.snapshotIterator(); stmtIt.hasNext();) {
 320                 Stmt s = (Stmt) stmtIt.next();
 321                 if (s instanceof IdentityStmt) {
 322                     IdentityStmt is = (IdentityStmt)s;
 323                     Local left = (Local)is.getLeftOp();
 324                     if (is.getRightOp() instanceof ThisRef) {
 325                         left.setType(IntType.v());
 326                         is.getRightOpBox().setValue(Jimple.v().newParameterRef(IntType.v(), m.getParameterCount()));
 327                     }
 328                 }
 329
 330                 for(Iterator i = s.getUseAndDefBoxes().iterator(); i.hasNext();) {
 331                     Object o = i.next();
 332                     if (o instanceof ValueBox) {
 333                         ValueBox vb = (ValueBox)o;
 334                         if (vb.getValue() instanceof ThisRef) {
 335                             System.out.println(s);
 336                             vb.setValue(loc);
 337                         }
 338                     }
 339                 }
 340
 341             }
 342
 343             sc.removeMethod(m);
 344
 345         }
 346         body.getUnits().add(stmt);
 347     }
 348
 349     public void nuke(SootClass c) {
 350         for(Iterator it = c.getFields().iterator(); it.hasNext();) {
 351             SootField f = (SootField)it.next();
 352             Type t = f.getType();
 353             if (t instanceof RefType) {
 354                 RefType rt = (RefType)t;
 355                 SootClass sc = rt.getSootClass();
 356                 if (isGladiator(sc)) f.setType(IntType.v());
 357             } else if (t instanceof ArrayType) {
 358                 ArrayType at = (ArrayType)t;
 359                 t = at.getElementType();
 360                 if (!(t instanceof RefType)) continue;
 361                 RefType rt = (RefType)t;
 362                 SootClass sc = rt.getSootClass();
 363                 if (isGladiator(sc)) f.setType(IntType.v().makeArrayType());
 364             }
 365         }
 366
 367         List list = new LinkedList(); list.addAll(c.getMethods());
 368         for(Iterator it = list.iterator(); it.hasNext();) {
 369             SootMethod m = (SootMethod)it.next();
 370             Body b = null;
 371             if (m.hasActiveBody()) b = fixBody(m.getActiveBody(), c, m);
 372             List l2 = new LinkedList();
 373             List l = m.getParameterTypes();
 374             for(Iterator it2 = l.iterator(); it2.hasNext();) {
 375                 Type t = (Type)it2.next();
 376                 l2.add(isGladiatorType(t) ? IntType.v() : t);
 377             }
 378             Type t = m.getReturnType();
 379             if (isGladiatorType(t)) {
 380                 t = IntType.v();
 381                 if (m.hasActiveBody()) {
 382                     Body bod = m.getActiveBody();
 383                     for(Iterator stmtIt = bod.getUnits().snapshotIterator(); stmtIt.hasNext();) {
 384                         Stmt s = (Stmt) stmtIt.next();
 385                         if (s instanceof ReturnStmt) {
 386                             if (((ReturnStmt)s).getOp().getType() instanceof NullType) {
 387                                 ((ReturnStmt)s).getOpBox().setValue(IntConstant.v(-1));
 388                             }
 389                         }
 390                     }
 391                 }
 392             }
 393             String name = m.getName();
 394             SootMethod meth = new SootMethod(name, l2, isGladiatorType(t) ? IntType.v() : t, m.getModifiers());
 395             if (b != null) {
 396                 JimpleBody b2 = Jimple.v().newBody(meth);
 397                 b2.importBodyContentsFrom(b);
 398                 meth.setActiveBody(b2);
 399             }
 400             c.removeMethod(m);
 401             c.addMethod(meth);
 402         }
 403
 404     }
 405
 406     protected Body fixBody(Body body, SootClass ownerClass, SootMethod smeth) {
 407         if (body instanceof JimpleBody) {
 408             JimpleBody b2 = Jimple.v().newBody(smeth);
 409             //b2.insertIdentityStmts();
 410             b2.importBodyContentsFrom(body);
 411             body = b2;
 412         }
 413         Chain units = body.getUnits();
 414         System.out.println("fixBody("+body.getMethod()+")");
 415         for(Iterator it = body.getLocals().snapshotIterator(); it.hasNext();) {
 416             Local l = (Local)it.next();
 417             if (isGladiatorType(l.getType())) l.setType(IntType.v());
 418         }
 419         for(int qq=0; qq<2; qq++) for(Iterator stmtIt = units.snapshotIterator(); stmtIt.hasNext();) {
 420             Stmt s = (Stmt) stmtIt.next();
 421             if (s instanceof DefinitionStmt) {
 422                 DefinitionStmt ds = (DefinitionStmt)s;
 423                 if (ds.getLeftOp().getType() instanceof PrimType && ds.getRightOp().getType() instanceof NullType) {
 424                     ds.getRightOpBox().setValue(IntConstant.v(-1));
 425                 }
 426             }
 427             List l = s.getUseAndDefBoxes();
 428             for(Iterator it = l.iterator(); it.hasNext();) {
 429                 Object o = it.next();
 430                 if (o instanceof ValueBox) {
 431                     ValueBox vb = (ValueBox)o;
 432                     Value v = vb.getValue();
 433
 434                     if (v instanceof BinopExpr) {
 435                         BinopExpr boe = (BinopExpr)v;
 436                         if (boe.getOp1().getType() instanceof PrimType && boe.getOp2().getType() instanceof NullType) {
 437                             boe.setOp2(IntConstant.v(-1));
 438                         }
 439                         if (boe.getOp2().getType() instanceof PrimType && boe.getOp1().getType() instanceof NullType) {
 440                             boe.setOp1(IntConstant.v(-1));
 441                         }
 442                     }
 443
 444                     if (v instanceof NewExpr) {
 445                         NewExpr ne = (NewExpr)v;
 446                         if (isGladiatorType(ne.getBaseType())) {
 447                             SootClass sc = ((RefType)ne.getBaseType()).getSootClass();
 448                             SootClass mc = getParent(sc);
 449                             String incFuncName = sc.getShortName().substring(sc.getShortName().lastIndexOf('$')+1) + "$$inc";
 450                             SootMethodRef smr = Scene.v().makeMethodRef(mc, incFuncName, new LinkedList(), IntType.v(), false);
 451                             Expr invokeExpr = Jimple.v().newSpecialInvokeExpr(thisLocal(mc,body), smr);
 452                             Local ll = viaLocal(invokeExpr, body, s);
 453                             vb.setValue(ll);
 454                             v = ll;
 455                             continue;
 456                         }
 457                     } else
 458
 459                     if (v instanceof InvokeExpr) {
 460                         InvokeExpr ie = (InvokeExpr)v;
 461                         SootMethodRef mr = ie.getMethodRef();
 462                         String name = mr.name();
 463                         if (v instanceof InstanceInvokeExpr && isGladiator(mr.declaringClass())) {
 464                             InstanceInvokeExpr iie = (InstanceInvokeExpr)v;
 465                             List li = new LinkedList();
 466                             li.addAll(iie.getArgs());
 467                             LinkedList pl = new LinkedList();
 468                             pl.addAll(mr.parameterTypes());
 469                             if (mr.name().equals("<init>") && isGladiator(mr.declaringClass())) {
 470                                 name = "$init";
 471                                 li.remove(0);
 472                                 pl.remove(0);
 473                                 //pl.addFirst(body.getThisLocal());
 474                             }
 475                             pl.add(IntType.v());
 476                             li.add(viaLocal(iie.getBase(),body,s));
 477                             SootClass sc = mr.declaringClass();
 478                             name = sc.getShortName().substring(sc.getShortName().lastIndexOf('$')+1) + "$$" + name;
 479                             mr = Scene.v().makeMethodRef(getParent(sc),
 480                                                          name,
 481                                                          pl,
 482                                                          isGladiatorType(mr.returnType()) ? IntType.v() : mr.returnType(),
 483                                                          false);
 484                             ie = Jimple.v().newVirtualInvokeExpr(viaLocal(thisLocal(getParent(sc),body),body,s), mr, li);
 485                             vb.setValue(v = ie);
 486                         } else {
 487                             List l0 = mr.parameterTypes();
 488                             List l2 = new LinkedList();
 489                             for(Iterator it2 = l0.iterator(); it2.hasNext();) {
 490                                 Type t = (Type)it2.next();
 491                                 l2.add(isGladiatorType(t) ? IntType.v() : t);
 492                             }
 493                             mr = Scene.v().makeMethodRef(mr.declaringClass(),
 494                                                          mr.name(),
 495                                                          l2,
 496                                                          isGladiatorType(mr.returnType()) ? IntType.v() : mr.returnType(),
 497                                                          mr.isStatic());
 498                             ie.setMethodRef(mr);
 499                             vb.setValue(v = ie);
 500                         }
 501
 502                         for(int i=0; i<ie.getArgCount(); i++) {
 503                             ValueBox b = ie.getArgBox(i);
 504                             Value val = b.getValue();
 505                             if (mr.parameterType(i) instanceof RefType && val.getType() instanceof PrimType) {
 506                                 SootClass intClass = Scene.v().getSootClass("java.lang.Integer");
 507                                 List typelist = new LinkedList();
 508                                 typelist.add(IntType.v());
 509                                 SootMethod intMethod = intClass.getMethod("<init>", typelist);
 510                                 Local loc = viaLocal(Jimple.v().newNewExpr(RefType.v(intClass)), body, s);
 511                                 List list = new LinkedList();
 512                                 list.add(val);
 513                                 units.insertBefore(Jimple.v().newInvokeStmt(Jimple.v().newSpecialInvokeExpr(loc,
 514                                                                                                             intMethod.makeRef(),
 515                                                                                                             list)),
 516                                                    s);
 517                                 b.setValue(loc);
 518                             }
 519                             if (val != null && val.getType() instanceof NullType && mr.parameterType(i) instanceof IntType) {
 520                                 b.setValue(IntConstant.v(-1));
 521                             }
 522                         }
 523
 524
 525                     } else if (v instanceof CastExpr) {
 526                         CastExpr ce = (CastExpr)v;
 527                         if (isGladiatorType(ce.getCastType())) {
 528                             SootClass mc = getParent(((RefType)ce.getCastType()).getSootClass());
 529                             SootClass ic = Scene.v().getSootClass("java.lang.Integer");
 530                             ce.setCastType(ic.getType());
 531                             // FIXME deal with null
 532                             SootMethodRef mr = Scene.v().makeMethodRef(ic, "intValue", new LinkedList(), IntType.v(), false);
 533                             InvokeExpr iie = Jimple.v().newVirtualInvokeExpr(viaLocal(ce, body, s),
 534                                                                              mr,
 535                                                                              new LinkedList());
 536                             vb.setValue(viaLocal(iie, body, s));
 537                             qq = 0;
 538                             break;
 539                         }
 540
 541                     } else if (v instanceof InstanceFieldRef) {
 542                         InstanceFieldRef ifr = (InstanceFieldRef)v;
 543                         SootFieldRef fr = ifr.getFieldRef();
 544                         Type t = fr.type();
 545                         if (isGladiatorFieldRef(fr)) {
 546                             SootClass mc = getParent(fr.declaringClass());
 547                             SootFieldRef sf = getGladiatorField(fr).makeRef();
 548                             InstanceFieldRef sfr = Jimple.v().newInstanceFieldRef(thisLocal(mc, body), sf);
 549                             System.out.println("s is " + s);
 550                             ArrayRef ar = Jimple.v().newArrayRef(viaLocal(sfr, body, s), ifr.getBase());
 551                             vb.setValue(ar);
 552                         }
 553                         if ((t instanceof RefType) && isGladiator(((RefType)t).getSootClass())) {
 554                             SootClass tc = ((RefType)t).getSootClass();
 555                             SootClass mc = getParent(tc);
 556                             ifr.setFieldRef(Scene.v().makeFieldRef(mc, fr.name(), IntType.v(), false));
 557                         }
 558                     }
 559                 }
 560             }
 561         }
 562         body.validate();
 563         return body;
 564     }
 565 }