// Create or return HeapRef corresponding to this string
public HeapReference createString(ClassFile stringType, ConstantPoolInfo_String stringConst)
{
// the reason this method exists is because I suck and can't seem
// to properly output unicode characters without breaking everything
string stringVal = stringConst.getValue();
if (stringMap[stringVal] == null){
HeapReference stringRef = newInstance(stringType);
StackFrame stringFrame = new StackFrame(stringType.getConstantPool());
// Attempt to initialize using the character array
MethodInfo stringInit = stringType.getMethod("<init>","([C)V");
if (stringInit == null){
throw new Exception("Unable to find init method for string");
}
stringFrame.setMethod(stringType,stringInit);
stringFrame.getLocalVariables()[0] = stringRef;
stringFrame.getLocalVariables()[1] = stringConst;
string printableChars = "";
//stringRef.isUnicode = true; // I suck
char[] chars = stringVal.ToCharArray();
for (int i = 0; i < chars.Length; i++){
if (chars[i] > 13 && chars[i] < 127){
printableChars += chars[i];
}
}
if (log.IsDebugEnabled) log.DebugFormat("stringval1:{0}",printableChars);
//if (log.IsDebugEnabled) log.DebugFormat(stringVal);
// if (log.IsDebugEnabled) log.DebugFormat("U:" + stringRef.isUnicode);
stringType.execute("<init>","([C)V",stringFrame);
stringMap.Add(stringVal,stringRef);
reverseStringMap.Add(stringRef,stringVal);
}
return (HeapReference) stringMap[stringVal];
}
/**
* int write(int fd,ByteBuffer src)
*/
public static void write(StackFrame frame)
{
int fd = (int)frame.getLocalVariables()[1];
Heap.HeapReference byteBufRef = (Heap.HeapReference) frame.getLocalVariables()[2];
if (fd != 2){
throw new ToyVMException("Can only handle stdout(2), have " + fd, frame);
}
// need to get the actual byte array
StackFrame frame2 = new StackFrame(frame);
ClassFile byteBufferClass = byteBufRef.type;
string getterType = "()[B";
string getterName = "array";
MethodInfo method = byteBufferClass.getMethod(getterName,getterType);
if (method == null){
foreach (MethodInfo m in byteBufferClass.getMethods()){
if (log.IsDebugEnabled) log.DebugFormat(m.ToString());
}
throw new ToyVMException("Unable to find " + getterName + getterType,frame);
}
frame2.setMethod(byteBufferClass,method);
frame2.getLocalVariables()[0] = byteBufRef;
byteBufferClass.execute(getterName,getterType,frame2);
Heap.HeapReference byteArrRef = (Heap.HeapReference) frame.popOperand();
byte[] bytes = (byte[]) byteArrRef.obj;
for (int i = 0; i < bytes.Length; i++){
Console.Write((char)bytes[i]);
}
frame.getPrev().pushOperand(bytes.Length);
}
public HeapReference createString(ClassFile stringType, string stringVal)
{
if (stringMap[stringVal] == null){
HeapReference stringRef = newInstance(stringType);
StackFrame stringFrame = new StackFrame(stringType.getConstantPool());
// Attempt to initialize using the character array
MethodInfo stringInit = stringType.getMethod("<init>","([C)V");
if (stringInit == null){
throw new Exception("Unable to find init method for string");
}
stringFrame.setMethod(stringType,stringInit);
stringFrame.getLocalVariables()[0] = stringRef;
stringFrame.getLocalVariables()[1] = stringVal;
// stringRef.isUnicode = containsUnicode(stringVal);
char[] chars = stringVal.ToCharArray();
string printableChars = "";
//stringRef.isUnicode = true; // I suck
for (int i = 0; i < chars.Length; i++){
if (chars[i] > 13 && chars[i] < 127){
printableChars += chars[i];
}
}
if (log.IsDebugEnabled) log.DebugFormat("stringval2:{0}",printableChars);
stringType.execute("<init>","([C)V",stringFrame);
stringMap.Add(stringVal,stringRef);
reverseStringMap.Add(stringRef,stringVal);
}
return (HeapReference) stringMap[stringVal];
}
public void start(string className)
{
try
{
EventLogger logger = new EventLogger("/home/jdewald/ToyVMEvents.log");
CountingHandler counter = new CountingHandler("/home/jdewald/ToyVMCounter");
ToyVMClassLoader.ClassLoadedEvent += logger.handleClassLoaded;
MethodInfo.EnterEvent += counter.HandleMethodInfoEnterEvent;
MethodInfo.ByteCodeEnterEvent += counter.HandleByteCodeEnterEvent;
ClassFile mainClass = ToyVMClassLoader.loadClass(className);
if (log.IsDebugEnabled) log.DebugFormat("Loaded");
if (log.IsDebugEnabled) log.DebugFormat(mainClass.GetName() + " was loaded");
//classCache[mainClass.GetName()] = mainClass;
if (log.IsDebugEnabled) log.DebugFormat(mainClass.GetName() + " stored in cache");
// initialize from the root of the class tree
string superClassName = mainClass.GetSuperClassName();
if (log.IsDebugEnabled) log.DebugFormat("Super class is {0}",superClassName);
ClassFile superClass = ToyVMClassLoader.loadClass(superClassName);
if (superClass == null)
{
throw new Exception("ClassLoader did not load super class!");
//superClass = loadClass(superClassName);
}
// Execute main(String[])
//MethodInfo info = mainClass.getMethod("main","[Ljava/lang/String;V");
StackFrame frame = new StackFrame(mainClass.getConstantPool());
//frame.pushOperand(mainClass);
// info.execute(frame);
frame.setMethod(mainClass,mainClass.getMethod("main","([Ljava/lang/String;)V"));
mainClass.execute("main","([Ljava/lang/String;)V",frame);
/*if (info == null) {
throw new Exception("Unable to find 'main' method of class " + className);
}
else {
StackFrame frame = new StackFrame(mainClass.getConstantPool());
frame.pushOperand(mainClass);
info.execute(frame);
}
*/
counter.Complete();
}
catch (ToyVMException te){
if (te.InnerException == null){
Console.WriteLine("{0}\n{1}",te.Message,te.getStackFrame());
}
else {
Console.WriteLine("{0}:{1}\n{2}",te.InnerException,te.Message,te.getStackFrame());
}
}
catch (Exception e)
{
Console.WriteLine(e.Message + ":" + e.StackTrace);
//throw e;
}
}
/**
* Sets the core default system properties
*/
public static void preInit(StackFrame sf)
{
Heap.HeapReference propsObj = (Heap.HeapReference) sf.getLocalVariables()[0];
ClassFile stringType = ToyVMClassLoader.loadClass("java/lang/String");
ClassFile propsClass = (ClassFile)(propsObj.type);
string setterType = "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;";
string setterName = "setProperty";
MethodInfo method = propsClass.getMethod(setterName,setterType);
if (method == null){
foreach (MethodInfo m in propsClass.getMethods()){
if (log.IsDebugEnabled) log.DebugFormat(m.ToString());
}
throw new ToyVMException("Unable to find " + setterName + setterType,sf);
}
StackFrame frame = new StackFrame(sf);
frame.setMethod(propsClass,method);
Heap.HeapReference prop = Heap.GetInstance().createString(stringType,"java.version");
Heap.HeapReference val = Heap.GetInstance().createString(stringType,"5");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.boot.class.path");
val = Heap.GetInstance().createString(stringType,"/home/jdewald/ToyVM/ToyVM/openjdk");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vendor");
val = Heap.GetInstance().createString(stringType,"jdewald");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vendor.url");
val = Heap.GetInstance().createString(stringType,"http://quay.wordpress.com");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vm.vendor");
val = Heap.GetInstance().createString(stringType,"jdewald");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vm.name");
val = Heap.GetInstance().createString(stringType,"ToyVM");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vm.vendor.url");
val = Heap.GetInstance().createString(stringType,"http://quay.wordpress.com");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vm.specification.version");
val = Heap.GetInstance().createString(stringType,"2");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vm.specification.vendor");
val = Heap.GetInstance().createString(stringType,"Sun");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vm.specification.url");
val = Heap.GetInstance().createString(stringType,"http://quay.wordpress.com");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.vm.specification.version");
val = Heap.GetInstance().createString(stringType,"http://quay.wordpress.com");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.class.version");
val = Heap.GetInstance().createString(stringType,"49");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.home");
val = Heap.GetInstance().createString(stringType,"/home/jdewald/ToyVM/ToyVM");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.class.path");
val = Heap.GetInstance().createString(stringType,"/home/jdewald/ToyVM/ToyVM/openjdk");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.library.path");
val = Heap.GetInstance().createString(stringType,"/home/jdewald/nativelibs");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"java.io.tmpdir");
val = Heap.GetInstance().createString(stringType,"/tmp");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"os.name");
val = Heap.GetInstance().createString(stringType,"Linux");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"os.arch");
val = Heap.GetInstance().createString(stringType,"i386");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"file.separator");
val = Heap.GetInstance().createString(stringType,"/");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"path.separator");
val = Heap.GetInstance().createString(stringType,":");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"line.separator");
val = Heap.GetInstance().createString(stringType,"\n");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"user.name");
val = Heap.GetInstance().createString(stringType,"jdewald");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"user.home");
val = Heap.GetInstance().createString(stringType,"/home/jdewald");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"user.dir");
val = Heap.GetInstance().createString(stringType,Environment.CurrentDirectory);
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
prop = Heap.GetInstance().createString(stringType,"gnu.cpu.endian");
val = Heap.GetInstance().createString(stringType,"little");
frame.getLocalVariables()[0] = propsObj;
frame.getLocalVariables()[1] = prop;
frame.getLocalVariables()[2] = val;
propsClass.execute(setterName,setterType,frame);
}