private boolean needDoubleMod(BinopExpr arg0, String symbol) {
if (symbol.equals("%") == false) return false;
if (!arg0.getOp1().getType().equals(DoubleType.v())
&& !arg0.getOp1().getType().equals(FloatType.v())) return false;
if (!arg0.getOp2().getType().equals(DoubleType.v())
&& !arg0.getOp2().getType().equals(FloatType.v())) return false;
return true;
}
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);
}
}
private Type getReturnType(String anno, SootMethod method) {
soot.Type sootType = method.getReturnType();
if (hasPointerAnnotation(method)) {
if (!sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
anno
+ " annotated method "
+ method
+ " must return long when annotated with @Pointer");
}
return I8_PTR;
}
if (hasMachineSizedFloatAnnotation(method)) {
if (!sootType.equals(DoubleType.v()) && !sootType.equals(FloatType.v())) {
throw new IllegalArgumentException(
anno
+ " annotated method "
+ method
+ " must return float or double when annotated with @MachineSizedFloat");
}
return config.getArch().is32Bit() ? FLOAT : DOUBLE;
}
if (hasMachineSizedSIntAnnotation(method) || hasMachineSizedUIntAnnotation(method)) {
if (!sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
anno
+ " annotated method "
+ method
+ " must return long when annotated with @MachineSizedSInt or @MachineSizedUInt");
}
return config.getArch().is32Bit() ? I32 : I64;
}
if (isStruct(sootType)) {
if (!isPassByValue(method)) {
// Structs are returned by reference by default
return new PointerType(getStructType(sootType));
}
return getStructType(sootType);
} else if (isNativeObject(sootType)) {
// NativeObjects are always returned by reference.
return I8_PTR;
} else if (sootType instanceof PrimType || sootType == VoidType.v()) {
return getType(sootType);
}
MarshalerMethod marshalerMethod =
config.getMarshalerLookup().findMarshalerMethod(new MarshalSite(method));
if (marshalerMethod instanceof ValueMarshalerMethod) {
return ((ValueMarshalerMethod) marshalerMethod).getNativeType(config.getArch());
} else {
return I8_PTR;
}
}
protected Value marshalPrimitiveToNative(Function fn, SootMethod method, Value value) {
soot.Type type = method.getReturnType();
if (hasPointerAnnotation(method)) {
value = marshalLongToPointer(fn, value);
} else if (hasMachineSizedFloatAnnotation(method) && type.equals(DoubleType.v())) {
value = marshalDoubleToMachineSizedFloat(fn, value);
} else if (hasMachineSizedFloatAnnotation(method) && type.equals(FloatType.v())) {
value = marshalFloatToMachineSizedFloat(fn, value);
} else if (hasMachineSizedSIntAnnotation(method) && type.equals(LongType.v())) {
value = marshalLongToMachineSizedInt(fn, value);
} else if (hasMachineSizedUIntAnnotation(method) && type.equals(LongType.v())) {
value = marshalLongToMachineSizedInt(fn, value);
}
return value;
}
private static int getFieldAlignment(SootField f) {
soot.Type t = f.getType();
if (LongType.v().equals(t) && Modifier.isVolatile(f.getModifiers())) {
// On ARM volatile longs must be 8 byte aligned
return 8;
}
if (LongType.v().equals(t) && !f.isStatic() && Modifier.isFinal(f.getModifiers())) {
// The Java Memory Model requires final instance fields to be written to using
// volatile semantics. Because of ARM's alignment requirements we return 8 here too.
return 8;
}
if (LongType.v().equals(t) || DoubleType.v().equals(t)) {
return 4;
}
return getFieldSize(f);
}
protected Value marshalNativeToPrimitive(
Function fn, SootMethod method, int paramIndex, Value value) {
soot.Type type = method.getParameterType(paramIndex);
if (hasPointerAnnotation(method, paramIndex)) {
value = marshalPointerToLong(fn, value);
} else if (hasMachineSizedFloatAnnotation(method, paramIndex) && type.equals(DoubleType.v())) {
value = marshalMachineSizedFloatToDouble(fn, value);
} else if (hasMachineSizedFloatAnnotation(method, paramIndex) && type.equals(FloatType.v())) {
value = marshalMachineSizedFloatToFloat(fn, value);
} else if (hasMachineSizedSIntAnnotation(method, paramIndex) && type.equals(LongType.v())) {
value = marshalMachineSizedSIntToLong(fn, value);
} else if (hasMachineSizedUIntAnnotation(method, paramIndex) && type.equals(LongType.v())) {
value = marshalMachineSizedUIntToLong(fn, value);
}
return value;
}
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 outADoubleBaseType(ADoubleBaseType node) {
mProductions.addLast(DoubleType.v());
}
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();
}
private StructureType getStructType(SootClass clazz, boolean checkEmpty) {
int n = 0;
for (SootMethod method : clazz.getMethods()) {
n = Math.max(getStructMemberOffset(method) + 1, n);
}
Type[] result = new Type[n + 1];
StructureType superType = null;
if (clazz.hasSuperclass()) {
SootClass superclass = clazz.getSuperclass();
if (!superclass.getName().equals("org.robovm.rt.bro.Struct")) {
superType = getStructType(superclass, false);
}
}
result[0] = superType != null ? superType : new StructureType();
for (SootMethod method : clazz.getMethods()) {
int offset = getStructMemberOffset(method);
if (offset != -1) {
if (!method.isNative() && !method.isStatic()) {
throw new IllegalArgumentException(
"@StructMember annotated method " + method + " must be native and not static");
}
Type type = null;
if (method.getParameterCount() == 0) {
soot.Type sootType = method.getReturnType();
// Possibly a getter
if (hasPointerAnnotation(method) && !sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
"@StructMember("
+ offset
+ ") annotated getter "
+ method
+ " must be of type long when annotated with @Pointer");
}
if (hasMachineSizedFloatAnnotation(method)
&& !sootType.equals(DoubleType.v())
&& !sootType.equals(FloatType.v())) {
throw new IllegalArgumentException(
"@StructMember("
+ offset
+ ") annotated getter "
+ method
+ " must be of type float or double when annotated with @MachineSizedFloat");
}
if ((hasMachineSizedSIntAnnotation(method) || hasMachineSizedUIntAnnotation(method))
&& !sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
"@StructMember("
+ offset
+ ") annotated getter "
+ method
+ " must be of type long when annotated with @MachineSizedSInt or @MachineSizedUInt");
}
if (sootType instanceof soot.ArrayType && !hasArrayAnnotation(method)) {
throw new IllegalArgumentException(
"@Array annotation expected on struct member getter " + method);
}
} else if (method.getParameterCount() == 1) {
soot.Type sootType = method.getParameterType(0);
if (hasPointerAnnotation(method, 0) && !sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
"@StructMember("
+ offset
+ ") annotated setter "
+ method
+ " must be of type long when annotated with @Pointer");
}
if (hasMachineSizedFloatAnnotation(method, 0)
&& !sootType.equals(DoubleType.v())
&& !sootType.equals(FloatType.v())) {
throw new IllegalArgumentException(
"@StructMember("
+ offset
+ ") annotated setter "
+ method
+ " must be of type float or double when annotated with @MachineSizedFloat");
}
if ((hasMachineSizedSIntAnnotation(method, 0) || hasMachineSizedUIntAnnotation(method))
&& !sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
"@StructMember("
+ offset
+ ") annotated setter "
+ method
+ " must be of type long when annotated with @MachineSizedSInt or @MachineSizedUInt");
}
if (sootType instanceof soot.ArrayType && !hasArrayAnnotation(method, 0)) {
throw new IllegalArgumentException(
"@Array annotation expected on first parameter of struct member setter " + method);
}
soot.Type retType = method.getReturnType();
// The return type of the setter must be void or this
if (!retType.equals(VoidType.v())
&& !(retType instanceof RefType
&& ((RefType) retType).getSootClass().equals(clazz))) {
throw new IllegalArgumentException(
"Setter "
+ method
+ " for "
+ "@StructMember("
+ offset
+ ") "
+ " must either return nothing or return a "
+ clazz);
}
} else {
throw new IllegalArgumentException(
"@StructMember annotated method " + method + " has too many parameters");
}
type = getStructMemberType(method);
int index = offset + 1;
if (result[index] == null) {
result[index] = type;
} else if (type != result[index]) {
// Two members mapped to the same offset (union). Pick
// the type with the largest alignment and pad with bytes
// up to the largest size.
result[index] = mergeStructMemberTypes(config.getDataLayout(), type, result[index]);
}
}
}
for (int i = 1; i < result.length; i++) {
if (result[i] == null) {
throw new IllegalArgumentException("No @StructMember(" + i + ") defined in class " + clazz);
}
}
if (!clazz.isAbstract() && checkEmpty && n == 0 && superType == null) {
throw new IllegalArgumentException(
"Struct class " + clazz + " has no @StructMember annotated methods");
}
return new StructureType(result);
}
private Type getParameterType(String anno, SootMethod method, int i) {
soot.Type sootType = method.getParameterType(i);
if (hasPointerAnnotation(method, i)) {
if (!sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
"Parameter "
+ (i + 1)
+ " of "
+ anno
+ " annotated method "
+ method
+ " must be of type long when annotated with @Pointer.");
}
return I8_PTR;
}
if (hasMachineSizedFloatAnnotation(method, i)) {
if (!sootType.equals(DoubleType.v()) && !sootType.equals(FloatType.v())) {
throw new IllegalArgumentException(
"Parameter "
+ (i + 1)
+ " of "
+ anno
+ " annotated method "
+ method
+ " must be of type float or double when annotated with @MachineSizedFloat.");
}
return config.getArch().is32Bit() ? FLOAT : DOUBLE;
}
if (hasMachineSizedSIntAnnotation(method, i) || hasMachineSizedUIntAnnotation(method, i)) {
if (!sootType.equals(LongType.v())) {
throw new IllegalArgumentException(
"Parameter "
+ (i + 1)
+ " of "
+ anno
+ " annotated method "
+ method
+ " must be of type long when annotated with "
+ "@MachineSizedSInt or @MachineSizedUInt");
}
return config.getArch().is32Bit() ? I32 : I64;
}
if (hasStructRetAnnotation(method, i)) {
if (i > 0) {
throw new IllegalArgumentException(
"Parameter "
+ (i + 1)
+ " of "
+ anno
+ " annotated method "
+ method
+ " cannot be annotated with @StructRet. Only the first"
+ " parameter may have this annotation.");
}
if (!isStruct(sootType)) {
throw new IllegalArgumentException(
"Parameter "
+ (i + 1)
+ " of "
+ anno
+ " annotated method "
+ method
+ " must be a sub class of Struct when annotated with @StructRet.");
}
// @StructRet implies pass by reference
return new PointerType(getStructType(sootType));
}
if (isStruct(sootType)) {
StructureType structType = getStructType(sootType);
if (hasByValAnnotation(method, i)) {
return getStructType(sootType);
}
return new PointerType(structType);
} else if (isNativeObject(sootType)) {
// NativeObjects are always passed by reference.
return I8_PTR;
} else if (sootType instanceof PrimType) {
return getType(sootType);
}
MarshalerMethod marshalerMethod =
config.getMarshalerLookup().findMarshalerMethod(new MarshalSite(method, i));
if (marshalerMethod instanceof ValueMarshalerMethod) {
return ((ValueMarshalerMethod) marshalerMethod).getNativeType(config.getArch());
} else {
return I8_PTR;
}
}