public static String getDescriptor(soot.Type t) {
if (t instanceof PrimType) {
if (t.equals(BooleanType.v())) {
return "Z";
} else if (t.equals(ByteType.v())) {
return "B";
} else if (t.equals(ShortType.v())) {
return "S";
} else if (t.equals(CharType.v())) {
return "C";
} else if (t.equals(IntType.v())) {
return "I";
} else if (t.equals(LongType.v())) {
return "J";
} else if (t.equals(FloatType.v())) {
return "F";
} else {
// DoubleType
return "D";
}
} else if (t.equals(VoidType.v())) {
return "V";
} else if (t instanceof soot.ArrayType) {
soot.ArrayType at = (soot.ArrayType) t;
return "[" + getDescriptor(at.getElementType());
} else {
// RefType
RefType rt = (RefType) t;
return "L" + rt.getClassName().replace('.', '/') + ";";
}
}
public static Type getType(soot.Type sootType) {
if (sootType.equals(soot.BooleanType.v())) {
return Type.I8;
} else if (sootType.equals(soot.ByteType.v())) {
return Type.I8;
} else if (sootType.equals(soot.ShortType.v())) {
return Type.I16;
} else if (sootType.equals(soot.CharType.v())) {
return Type.I16;
} else if (sootType.equals(soot.IntType.v())) {
return Type.I32;
} else if (sootType.equals(soot.LongType.v())) {
return Type.I64;
} else if (sootType.equals(soot.FloatType.v())) {
return Type.FLOAT;
} else if (sootType.equals(soot.DoubleType.v())) {
return Type.DOUBLE;
} else if (sootType.equals(soot.VoidType.v())) {
return Type.VOID;
} else if (sootType instanceof soot.RefLikeType || sootType.equals(BottomType.v())) {
return OBJECT_PTR;
} else {
throw new IllegalArgumentException("Unknown Type: " + sootType);
}
}
public static int getFieldSize(Arch arch, SootField f) {
soot.Type t = f.getType();
if (LongType.v().equals(t) || DoubleType.v().equals(t)) {
return 8;
}
if (IntType.v().equals(t) || FloatType.v().equals(t)) {
return 4;
}
if (t instanceof RefLikeType) {
return arch.is32Bit() ? 4 : 8;
}
if (ShortType.v().equals(t) || CharType.v().equals(t)) {
return 2;
}
if (ByteType.v().equals(t) || BooleanType.v().equals(t)) {
return 1;
}
throw new IllegalArgumentException("Unknown Type: " + t);
}
private static int getFieldSize(SootField f) {
soot.Type t = f.getType();
if (LongType.v().equals(t) || DoubleType.v().equals(t)) {
return 8;
}
if (IntType.v().equals(t) || FloatType.v().equals(t)) {
return 4;
}
if (t instanceof RefLikeType) {
// Assume pointers are 32-bit
return 4;
}
if (ShortType.v().equals(t) || CharType.v().equals(t)) {
return 2;
}
if (ByteType.v().equals(t) || BooleanType.v().equals(t)) {
return 1;
}
throw new IllegalArgumentException("Unknown Type: " + t);
}
public void outABooleanBaseType(ABooleanBaseType node) {
mProductions.addLast(BooleanType.v());
}
void doWeave(
SootMethod method,
LocalGeneratorEx lg,
AdviceApplication adviceappl,
Residue residue,
WeavingContext wc) {
AdviceInliner.v().addShadowMethod(method);
ShadowPoints shadowpoints = adviceappl.shadowmatch.sp;
AbstractAdviceDecl advicedecl = adviceappl.advice;
Body b = method.getActiveBody();
Chain units = b.getUnits().getNonPatchingChain();
// end of shadow
Stmt endshadow = shadowpoints.getEnd();
NopStmt nop2 = Jimple.v().newNopStmt();
GotoStmt goto1 = Jimple.v().newGotoStmt(nop2);
if (advicedecl instanceof CflowSetup) {
Tagger.tagStmt(goto1, InstructionKindTag.CFLOW_EXIT);
} else if (advicedecl instanceof PerCflowSetup) {
Tagger.tagStmt(goto1, InstructionKindTag.PERCFLOW_EXIT);
} else if (advicedecl instanceof DeclareSoft) {
Tagger.tagStmt(goto1, InstructionKindTag.EXCEPTION_SOFTENER);
} else if (advicedecl instanceof DeclareMessage) {
Tagger.tagStmt(goto1, InstructionKindTag.DECLARE_MESSAGE);
} else {
Tagger.tagStmt(goto1, InstructionKindTag.AFTER_THROWING_HANDLER);
}
Tagger.tagStmt(goto1, new InstructionSourceTag(advicedecl.sourceId));
Tagger.tagStmt(goto1, new InstructionShadowTag(adviceappl.shadowmatch.shadowId));
units.insertBefore(nop2, endshadow);
units.insertBefore(goto1, nop2);
// have ...
// goto1: goto nop2;
// nop2: nop;
// endshadow: nop;
RefType catchType = getCatchType();
Local exception = lg.generateLocal(catchType, "exception");
bindException(wc, advicedecl, exception);
CaughtExceptionRef exceptRef = Jimple.v().newCaughtExceptionRef();
IdentityStmt idStmt = Jimple.v().newIdentityStmt(exception, exceptRef);
units.insertAfter(idStmt, goto1);
ThrowStmt throwStmt = Jimple.v().newThrowStmt(exception);
throwStmt.addTag(new ThrowCreatedByCompilerTag());
if (advicedecl instanceof CflowSetup) {
Tagger.tagStmt(throwStmt, InstructionKindTag.CFLOW_EXIT);
} else if (advicedecl instanceof PerCflowSetup) {
Tagger.tagStmt(throwStmt, InstructionKindTag.PERCFLOW_EXIT);
} else if (advicedecl instanceof DeclareSoft) {
Tagger.tagStmt(throwStmt, InstructionKindTag.EXCEPTION_SOFTENER);
} else if (advicedecl instanceof DeclareMessage) {
Tagger.tagStmt(throwStmt, InstructionKindTag.DECLARE_MESSAGE);
} else {
Tagger.tagStmt(throwStmt, InstructionKindTag.AFTER_THROWING_HANDLER);
}
Tagger.tagStmt(throwStmt, new InstructionSourceTag(advicedecl.sourceId));
Tagger.tagStmt(throwStmt, new InstructionShadowTag(adviceappl.shadowmatch.shadowId));
// store shadow/source tag for this residue in weaving context
if (advicedecl instanceof CflowSetup) {
wc.setKindTag(InstructionKindTag.CFLOW_TEST);
}
if (advicedecl instanceof PerCflowSetup) {
wc.setKindTag(InstructionKindTag.CFLOW_TEST);
}
wc.setShadowTag(new InstructionShadowTag(adviceappl.shadowmatch.shadowId));
wc.setSourceTag(new InstructionSourceTag(adviceappl.advice.sourceId));
Stmt endresidue = residue.codeGen(method, lg, units, idStmt, throwStmt, true, wc);
// have ...
// java.lang.Exception exception;
//
// goto1: goto nop2;
// idStmt: exception := @caughtexception
// nop2: nop;
// endshadow: nop;
units.insertAfter(throwStmt, endresidue);
Chain invokestmts = advicedecl.makeAdviceExecutionStmts(adviceappl, lg, wc);
for (Iterator stmtlist = invokestmts.iterator(); stmtlist.hasNext(); ) {
Stmt nextstmt = (Stmt) stmtlist.next();
units.insertBefore(nextstmt, throwStmt);
}
if (method.getName().equals("<clinit>"))
// have to handle case of ExceptionInInitialzerError
{ // if (exception instanceof java.lang.ExceptionInIntializerError)
// throw (exception);
debug("Adding extra check in clinit");
Local isInitError = lg.generateLocal(soot.BooleanType.v(), "isInitError");
Stmt assignbool =
Jimple.v()
.newAssignStmt(
isInitError,
Jimple.v()
.newInstanceOfExpr(
exception, RefType.v("java.lang.ExceptionInInitializerError")));
Stmt ifstmt =
Jimple.v().newIfStmt(Jimple.v().newNeExpr(isInitError, IntConstant.v(0)), throwStmt);
// ThrowStmt throwInitError = Jimple.v().newThrowStmt(exception);
// units.insertAfter(throwInitError, idStmt);
units.insertAfter(ifstmt, idStmt);
units.insertAfter(assignbool, idStmt);
}
Stmt beginshadow = shadowpoints.getBegin();
Stmt begincode = (Stmt) units.getSuccOf(beginshadow);
// have ...
// java.lang.Exception exception;
// <AspectType> theAspect;
//
// beginshadow: nop
// begincode: <some statement>
// .... <stuff in between>
// goto1: goto nop2;
// idStmt: exception := @caughtexception;
// assignStmt: theAspect = new AspectOf();
// .... invoke statements ....
// throwStmt: throw exception;
// nop2: nop;
// endshadow: nop;
Chain traps = b.getTraps();
Trap t = traps.size() > 0 ? (Trap) traps.getFirst() : null;
// assume no exception ranges overlap with this one; make sure
// we go after any that would be enclosed within this one.
while (t != null
&& (units.follows(t.getBeginUnit(), begincode)
|| (t.getBeginUnit() == begincode && units.follows(idStmt, t.getEndUnit()))))
t = (Trap) traps.getSuccOf(t);
Trap newt = Jimple.v().newTrap(catchType.getSootClass(), begincode, idStmt, idStmt);
if (t == null) traps.addLast(newt);
else traps.insertBefore(newt, t);
// added
// catch java.lang.Throwable
// from begincode upto idStmt handlewith idStmt
} // method doWeave
protected void readRefField(OpenCLField ref_field) {
SootField soot_field = ref_field.getSootField();
SootClass soot_class = Scene.v().getSootClass(soot_field.getDeclaringClass().getName());
BytecodeLanguage bcl = m_bcl.top();
Local gc_obj_visit = m_gcObjVisitor.top();
BclMemory bcl_mem = new BclMemory(bcl, m_currMem.top());
Local ref = bcl_mem.readRef();
bcl_mem.useInstancePointer();
bcl_mem.pushAddress();
bcl_mem.setAddress(ref);
// bcl.println("reading field: "+ref_field.getName());
SootClass obj_class = Scene.v().getSootClass("java.lang.Object");
SootClass string = Scene.v().getSootClass("java.lang.String");
SootClass class_class = Scene.v().getSootClass("java.lang.Class");
Local original_field_value;
if (soot_class.isApplicationClass() == false) {
if (ref_field.isInstance()) {
bcl.pushMethod(
gc_obj_visit, "readField", obj_class.getType(), obj_class.getType(), string.getType());
original_field_value =
bcl.invokeMethodRet(
gc_obj_visit, m_objSerializing.top(), StringConstant.v(soot_field.getName()));
} else {
bcl.pushMethod(
gc_obj_visit,
"readStaticField",
obj_class.getType(),
class_class.getType(),
string.getType());
Local cls = bcl.classConstant(soot_field.getDeclaringClass().getType());
original_field_value =
bcl.invokeMethodRet(gc_obj_visit, cls, StringConstant.v(soot_field.getName()));
}
} else {
if (ref_field.isInstance()) {
original_field_value = bcl.refInstanceField(m_objSerializing.top(), ref_field.getName());
} else {
original_field_value = bcl.refStaticField(soot_class.getType(), ref_field.getName());
}
}
bcl.pushMethod(
gc_obj_visit,
"readFromHeap",
obj_class.getType(),
obj_class.getType(),
BooleanType.v(),
LongType.v());
int should_read = 1;
Local ret_obj =
bcl.invokeMethodRet(gc_obj_visit, original_field_value, IntConstant.v(should_read), ref);
Type type = soot_field.getType();
Local ret = bcl.cast(type, ret_obj);
if (soot_class.isApplicationClass() == false) {
if (ref_field.isInstance()) {
bcl.pushMethod(
gc_obj_visit,
"writeField",
VoidType.v(),
obj_class.getType(),
string.getType(),
obj_class.getType());
bcl.invokeMethodNoRet(
gc_obj_visit, m_objSerializing.top(), StringConstant.v(soot_field.getName()), ret);
} else {
bcl.pushMethod(
gc_obj_visit,
"writeStaticField",
VoidType.v(),
class_class.getType(),
string.getType(),
obj_class.getType());
Local cls = bcl.classConstant(soot_field.getDeclaringClass().getType());
bcl.invokeMethodNoRet(gc_obj_visit, cls, StringConstant.v(soot_field.getName()), ret);
}
} else {
if (ref_field.isInstance()) {
bcl.setInstanceField(soot_field, m_objSerializing.top(), ret);
} else {
bcl.setStaticField(soot_field, ret);
}
}
bcl_mem.popAddress();
}
private StructureConstant createClassInfoStruct() {
int flags = 0;
if (Modifier.isPublic(sootClass.getModifiers())) {
flags |= CI_PUBLIC;
}
if (Modifier.isFinal(sootClass.getModifiers())) {
flags |= CI_FINAL;
}
if (Modifier.isInterface(sootClass.getModifiers())) {
flags |= CI_INTERFACE;
}
if (Modifier.isAbstract(sootClass.getModifiers())) {
flags |= CI_ABSTRACT;
}
if ((sootClass.getModifiers() & 0x1000) > 0) {
flags |= CI_SYNTHETIC;
}
if (Modifier.isAnnotation(sootClass.getModifiers())) {
flags |= CI_ANNOTATION;
}
if (Modifier.isEnum(sootClass.getModifiers())) {
flags |= CI_ENUM;
}
if (attributesEncoder.classHasAttributes()) {
flags |= CI_ATTRIBUTES;
}
if (hasFinalizer(sootClass)) {
flags |= CI_FINALIZABLE;
}
// Create the ClassInfoHeader structure.
StructureConstantBuilder header = new StructureConstantBuilder();
header.add(new NullConstant(I8_PTR)); // Points to the runtime Class struct
header.add(new IntegerConstant(flags));
header.add(getString(getInternalName(sootClass)));
if (sootClass.declaresMethod("<clinit>", Collections.emptyList(), VoidType.v())) {
SootMethod method = sootClass.getMethod("<clinit>", Collections.emptyList(), VoidType.v());
header.add(new FunctionRef(mangleMethod(method), getFunctionType(method)));
} else {
header.add(new NullConstant(I8_PTR));
}
header.add(sizeof(classType));
header.add(sizeof(instanceType));
if (!instanceFields.isEmpty()) {
header.add(offsetof(instanceType, 1, 1));
} else {
header.add(sizeof(instanceType));
}
header.add(new IntegerConstant((short) countReferences(classFields)));
header.add(new IntegerConstant((short) countReferences(instanceFields)));
PackedStructureConstantBuilder body = new PackedStructureConstantBuilder();
body.add(new IntegerConstant((short) sootClass.getInterfaceCount()));
body.add(new IntegerConstant((short) sootClass.getFieldCount()));
body.add(new IntegerConstant((short) sootClass.getMethodCount()));
if (!sootClass.isInterface()) {
body.add(
getStringOrNull(
sootClass.hasSuperclass() ? getInternalName(sootClass.getSuperclass()) : null));
}
if (attributesEncoder.classHasAttributes()) {
body.add(new ConstantBitcast(attributesEncoder.getClassAttributes().ref(), I8_PTR));
}
for (SootClass s : sootClass.getInterfaces()) {
body.add(getString(getInternalName(s)));
}
for (SootField f : sootClass.getFields()) {
flags = 0;
soot.Type t = f.getType();
if (t instanceof PrimType) {
if (t.equals(BooleanType.v())) {
flags |= DESC_Z;
} else if (t.equals(ByteType.v())) {
flags |= DESC_B;
} else if (t.equals(ShortType.v())) {
flags |= DESC_S;
} else if (t.equals(CharType.v())) {
flags |= DESC_C;
} else if (t.equals(IntType.v())) {
flags |= DESC_I;
} else if (t.equals(LongType.v())) {
flags |= DESC_J;
} else if (t.equals(FloatType.v())) {
flags |= DESC_F;
} else if (t.equals(DoubleType.v())) {
flags |= DESC_D;
}
flags <<= 12;
}
if (Modifier.isPublic(f.getModifiers())) {
flags |= FI_PUBLIC;
} else if (Modifier.isPrivate(f.getModifiers())) {
flags |= FI_PRIVATE;
} else if (Modifier.isProtected(f.getModifiers())) {
flags |= FI_PROTECTED;
}
if (Modifier.isStatic(f.getModifiers())) {
flags |= FI_STATIC;
}
if (Modifier.isFinal(f.getModifiers())) {
flags |= FI_FINAL;
}
if (Modifier.isVolatile(f.getModifiers())) {
flags |= FI_VOLATILE;
}
if (Modifier.isTransient(f.getModifiers())) {
flags |= FI_TRANSIENT;
}
if ((f.getModifiers() & 0x1000) > 0) {
flags |= FI_SYNTHETIC;
}
if (Modifier.isEnum(f.getModifiers())) {
flags |= FI_ENUM;
}
if (attributesEncoder.fieldHasAttributes(f)) {
flags |= FI_ATTRIBUTES;
}
body.add(new IntegerConstant((short) flags));
body.add(getString(f.getName()));
if (!(t instanceof PrimType)) {
body.add(getString(getDescriptor(f)));
}
if (f.isStatic()) {
int index = classFields.indexOf(f);
body.add(offsetof(classType, 1, index, 1));
} else {
int index = instanceFields.indexOf(f);
body.add(offsetof(instanceType, 1, 1 + index, 1));
}
if (attributesEncoder.fieldHasAttributes(f)) {
body.add(new ConstantBitcast(attributesEncoder.getFieldAttributes(f).ref(), I8_PTR));
}
}
for (SootMethod m : sootClass.getMethods()) {
soot.Type t = m.getReturnType();
flags = 0;
if (Modifier.isPublic(m.getModifiers())) {
flags |= MI_PUBLIC;
} else if (Modifier.isPrivate(m.getModifiers())) {
flags |= MI_PRIVATE;
} else if (Modifier.isProtected(m.getModifiers())) {
flags |= MI_PROTECTED;
}
if (Modifier.isStatic(m.getModifiers())) {
flags |= MI_STATIC;
}
if (Modifier.isFinal(m.getModifiers())) {
flags |= MI_FINAL;
}
if (Modifier.isSynchronized(m.getModifiers())) {
flags |= MI_SYNCHRONIZED;
}
if ((m.getModifiers() & 0x0040) > 0) {
flags |= MI_BRIDGE;
}
if ((m.getModifiers() & 0x0080) > 0) {
flags |= MI_VARARGS;
}
if (Modifier.isNative(m.getModifiers())) {
if (!isStruct(sootClass) && !isStructMember(m)) {
flags |= MI_NATIVE;
}
}
if (Modifier.isAbstract(m.getModifiers())) {
flags |= MI_ABSTRACT;
}
if (Modifier.isStrictFP(m.getModifiers())) {
flags |= MI_STRICT;
}
if ((m.getModifiers() & 0x1000) > 0) {
flags |= MI_SYNTHETIC;
}
if (attributesEncoder.methodHasAttributes(m)) {
flags |= MI_ATTRIBUTES;
}
if (isBridge(m)) {
flags |= MI_BRO_BRIDGE;
}
if (isCallback(m)) {
flags |= MI_BRO_CALLBACK;
}
if ((t instanceof PrimType || t == VoidType.v()) && m.getParameterCount() == 0) {
flags |= MI_COMPACT_DESC;
}
body.add(new IntegerConstant((short) flags));
body.add(getString(m.getName()));
if ((flags & MI_COMPACT_DESC) > 0) {
int desc = 0;
if (t.equals(BooleanType.v())) {
desc = DESC_Z;
} else if (t.equals(ByteType.v())) {
desc = DESC_B;
} else if (t.equals(ShortType.v())) {
desc = DESC_S;
} else if (t.equals(CharType.v())) {
desc = DESC_C;
} else if (t.equals(IntType.v())) {
desc = DESC_I;
} else if (t.equals(LongType.v())) {
desc = DESC_J;
} else if (t.equals(FloatType.v())) {
desc = DESC_F;
} else if (t.equals(DoubleType.v())) {
desc = DESC_D;
} else if (t.equals(VoidType.v())) {
desc = DESC_V;
}
body.add(new IntegerConstant((byte) desc));
} else {
body.add(getString(getDescriptor(m)));
}
if (attributesEncoder.methodHasAttributes(m)) {
body.add(new ConstantBitcast(attributesEncoder.getMethodAttributes(m).ref(), I8_PTR));
}
if (!m.isAbstract()) {
body.add(new ConstantBitcast(new FunctionRef(mangleMethod(m), getFunctionType(m)), I8_PTR));
body.add(
new IntegerConstant(
DUMMY_METHOD_SIZE)); // Size of function. This value will be modified later by
// patching the .s file.
if (m.isSynchronized()) {
body.add(
new ConstantBitcast(
new FunctionRef(mangleMethod(m) + "_synchronized", getFunctionType(m)), I8_PTR));
}
}
if (isBridge(m)) {
body.add(new GlobalRef(BridgeMethodCompiler.getTargetFnPtrName(m), I8_PTR));
}
if (isCallback(m)) {
body.add(
new ConstantBitcast(
new FunctionRef(mangleMethod(m) + "_callback", getCallbackFunctionType(m)),
I8_PTR));
}
}
// Return the struct {header, body}. To be compatible with the C code in classinfo.c
// it is important that the header is padded the same as in C so that the body starts
// after sizeof(ClassInfoHeader) bytes.
return new StructureConstantBuilder().add(header.build()).add(body.build()).build();
}
@Before
public void setup() {
BOOLEAN = new SootTypeType(BooleanType.v());
VOID = new SootTypeType(VoidType.v());
}
