Examples with ConstantPoolGen org.apache.bcel.generic.ConstantPoolGen used on opensource projects

Example 11 with ConstantPoolGen

use of org.apache.bcel.generic.ConstantPoolGen in project jop by jop-devel.

the class ObjectCacheAnalysis method getHandleType.

public static String getHandleType(WCETTool project, ControlFlowGraph cfg, InstructionHandle ih) {
    ConstantPoolGen constPool = cfg.getMethodInfo().getConstantPoolGen();
    Instruction instr = ih.getInstruction();
    if (instr instanceof GETFIELD) {
        GETFIELD gf = (GETFIELD) instr;
        ReferenceType refty = gf.getReferenceType(constPool);
        return refty.toString();
    }
    if (!ALL_HANDLE_ACCESSES)
        return null;
    if (instr instanceof PUTFIELD) {
        PUTFIELD pf = (PUTFIELD) instr;
        ReferenceType refty = pf.getReferenceType(constPool);
        return refty.toString();
    }
    if (instr instanceof ArrayInstruction) {
        //ArrayInstruction ainstr = (ArrayInstruction) instr;
        return "[]";
    }
    if (instr instanceof ARRAYLENGTH) {
        //ARRAYLENGTH ainstr = (ARRAYLENGTH) instr;
        return "[]";
    }
    if (instr instanceof INVOKEINTERFACE || instr instanceof INVOKEVIRTUAL) {
        return "$header";
    }
    return null;
}

Example 12 with ConstantPoolGen

use of org.apache.bcel.generic.ConstantPoolGen in project jop by jop-devel.

the class ObjectCacheAnalysis method getCachedType.

public static Type getCachedType(WCETTool project, ControlFlowGraph cfg, InstructionHandle ih) {
    ConstantPoolGen constPool = cfg.getMethodInfo().getConstantPoolGen();
    Instruction instr = ih.getInstruction();
    if (instr instanceof GETFIELD) {
        GETFIELD gf = (GETFIELD) instr;
        return gf.getFieldType(constPool);
    }
    if (!ALL_HANDLE_ACCESSES) {
        return null;
    } else {
        throw new AssertionError("For O$, only getfield is supported right now");
    }
}

Example 13 with ConstantPoolGen

use of org.apache.bcel.generic.ConstantPoolGen in project jop by jop-devel.

the class ConstantCache method addStaticFieldAddress.

private void addStaticFieldAddress(ControlFlowGraph cfg, FieldInstruction fii) {
    AppInfo appInfo = cfg.getAppInfo();
    ConstantPoolGen cpg = cfg.getMethodInfo().getConstantPoolGen();
    String fieldName = fii.getFieldName(cpg) + fii.getSignature(cpg);
    Integer address = project.getLinkerInfo().getStaticFieldAddress(((ObjectType) fii.getReferenceType(cpg)).getClassName(), fieldName);
    addAddress(staticAddressMap, cfg.getMethodInfo(), address);
}

Example 14 with ConstantPoolGen

use of org.apache.bcel.generic.ConstantPoolGen in project jop by jop-devel.

the class OldClinitOrder method findDependencies.

private Set findDependencies(OldClassInfo cli, OldMethodInfo mi, boolean inRec) {
    //		System.out.println("find dep. in "+cli.clazz.getClassName()+":"+mi.getMethod().getName());
    Method method = mi.getMethod();
    Set depends = new HashSet();
    if (method.isNative() || method.isAbstract()) {
        // subclasses???? :-(
        return depends;
    }
    ConstantPool cpool = cli.clazz.getConstantPool();
    ConstantPoolGen cpoolgen = new ConstantPoolGen(cpool);
    MethodGen mg = new MethodGen(method, cli.clazz.getClassName(), cpoolgen);
    InstructionList il = mg.getInstructionList();
    InstructionFinder f = new InstructionFinder(il);
    // find instructions that access the constant pool
    // collect all indices to constants in ClassInfo
    String cpInstr = "CPInstruction";
    for (Iterator it = f.search(cpInstr); it.hasNext(); ) {
        InstructionHandle[] match = (InstructionHandle[]) it.next();
        InstructionHandle first = match[0];
        CPInstruction ii = (CPInstruction) first.getInstruction();
        int idx = ii.getIndex();
        Constant co = cpool.getConstant(idx);
        ConstantClass cocl = null;
        Set addDepends = null;
        String clname;
        OldClassInfo clinfo;
        OldMethodInfo minfo;
        switch(co.getTag()) {
            case Constants.CONSTANT_Class:
                cocl = (ConstantClass) co;
                clname = cocl.getBytes(cpool).replace('/', '.');
                clinfo = (OldClassInfo) ai.cliMap.get(clname);
                if (clinfo != null) {
                    minfo = clinfo.getMethodInfo("<init>()V");
                    if (minfo != null) {
                        addDepends = findDependencies(clinfo, minfo, true);
                    }
                }
                break;
            case Constants.CONSTANT_InterfaceMethodref:
                cocl = (ConstantClass) cpool.getConstant(((ConstantInterfaceMethodref) co).getClassIndex());
                break;
            case Constants.CONSTANT_Methodref:
                cocl = (ConstantClass) cpool.getConstant(((ConstantMethodref) co).getClassIndex());
                clname = cocl.getBytes(cpool).replace('/', '.');
                clinfo = (OldClassInfo) ai.cliMap.get(clname);
                int sigidx = ((ConstantMethodref) co).getNameAndTypeIndex();
                ConstantNameAndType signt = (ConstantNameAndType) cpool.getConstant(sigidx);
                String sigstr = signt.getName(cpool) + signt.getSignature(cpool);
                if (clinfo != null) {
                    minfo = clinfo.getMethodInfo(sigstr);
                    if (minfo != null) {
                        addDepends = findDependencies(clinfo, minfo, true);
                    }
                }
                break;
            case Constants.CONSTANT_Fieldref:
                cocl = (ConstantClass) cpool.getConstant(((ConstantFieldref) co).getClassIndex());
                break;
        }
        if (cocl != null) {
            clname = cocl.getBytes(cpool).replace('/', '.');
            OldClassInfo clinf = (OldClassInfo) ai.cliMap.get(clname);
            if (clinf != null) {
                if (clinf.getMethodInfo(OldAppInfo.clinitSig) != null) {
                    // don't add myself as dependency
                    if (clinf != cli) {
                        depends.add(clinf);
                    }
                }
            }
        }
        if (addDepends != null) {
            Iterator itAddDep = addDepends.iterator();
            while (itAddDep.hasNext()) {
                OldClassInfo addCli = (OldClassInfo) itAddDep.next();
                if (addCli == cli) {
                    throw new Error("cyclic indirect <clinit> dependency");
                }
                depends.add(addCli);
            }
        }
    }
    il.dispose();
    return depends;
}

Example 15 with ConstantPoolGen

use of org.apache.bcel.generic.ConstantPoolGen in project jop by jop-devel.

the class ReplaceNativeAndCPIdx method visitJavaClass.

public void visitJavaClass(JavaClass clazz) {
    super.visitJavaClass(clazz);
    Method[] methods = clazz.getMethods();
    cp = clazz.getConstantPool();
    cpoolgen = new ConstantPoolGen(cp);
    for (int i = 0; i < methods.length; i++) {
        if (!(methods[i].isAbstract() || methods[i].isNative())) {
            Method m = replace(methods[i]);
            OldMethodInfo mi = getCli().getMethodInfo(m.getName() + m.getSignature());
            // set new method also in MethodInfo
            mi.setMethod(m);
            if (m != null) {
                methods[i] = m;
            }
        }
    }
}