Ejemplos de dvmSetStaticFieldObject en C++ (Cpp)

Ejemplo n.º 1

Archivo: java_lang_reflect_Field.c Proyecto: shivamshyam/in-the-box

/*
 * private void setField(Object o, Class declaringClass, Class type,
 *     int slot, boolean noAccessCheck, Object value)
 *
 * When assigning into a primitive field we will automatically extract
 * the value from box types.
 */
static void Dalvik_java_lang_reflect_Field_setField(const u4* args,
        JValue* pResult)
{
    // ignore thisPtr in args[0]
    Object* obj = (Object*) args[1];
    ClassObject* declaringClass = (ClassObject*) args[2];
    ClassObject* fieldType = (ClassObject*) args[3];
    int slot = args[4];
    bool noAccessCheck = (args[5] != 0);
    Object* valueObj = (Object*) args[6];
    JValue* fieldPtr;
    JValue value;

    /* unwrap primitive, or verify object type */
    if (!dvmUnwrapPrimitive(valueObj, fieldType, &value)) {
        dvmThrowException("Ljava/lang/IllegalArgumentException;",
                          "invalid value for field");
        RETURN_VOID();
    }

    /* get a pointer to the field's data; performs access checks */
    fieldPtr = getFieldDataAddr(obj, declaringClass, slot, true, noAccessCheck);
    if (fieldPtr == NULL)
        RETURN_VOID();

    /* store 4 or 8 bytes */
    if (fieldType->primitiveType == PRIM_LONG ||
            fieldType->primitiveType == PRIM_DOUBLE)
    {
        fieldPtr->j = value.j;
    } else if (fieldType->primitiveType == PRIM_NOT) {
        if (slot < 0) {
            StaticField *sfield;
            sfield = (StaticField *)dvmSlotToField(declaringClass, slot);
            assert(fieldPtr == &sfield->value);
            dvmSetStaticFieldObject(sfield, value.l);
        } else {
            int offset = declaringClass->ifields[slot].byteOffset;
            assert(fieldPtr == (JValue *)BYTE_OFFSET(obj, offset));
            dvmSetFieldObject(obj, offset, value.l);
        }
    } else {
        fieldPtr->i = value.i;
    }

    RETURN_VOID();
}

Ejemplo n.º 2

Archivo: java_lang_reflect_Field.c Proyecto: manisnesan/Dalvik-VM

/*
 * private void setField(Object o, Class declaringClass, Class type,
 *     int slot, boolean noAccessCheck, Object value)
 *
 * When assigning into a primitive field we will automatically extract
 * the value from box types.
 */
static void Dalvik_java_lang_reflect_Field_setField(const u4* args,
    JValue* pResult)
{
    // ignore thisPtr in args[0]
    Object* obj = (Object*) args[1];
    ClassObject* declaringClass = (ClassObject*) args[2];
    ClassObject* fieldType = (ClassObject*) args[3];
    int slot = args[4];
    bool noAccessCheck = (args[5] != 0);
    Object* valueObj = (Object*) args[6];
#ifdef WITH_TAINT_TRACKING
    /* rtaint = args[7]
     * thisPtr taint = args[8]
     * obj taint = args[9]
     * declaringClass taint = args[10]
     * fieldType taint = args[11]
     * slot taint = args[12]
     * noAccessCheck taint = args[13]
     */
    u4 valueTaint = args[14];
#endif
    JValue* fieldPtr;
    JValue value;

    /* unwrap primitive, or verify object type */
    if (!dvmUnwrapPrimitive(valueObj, fieldType, &value)) {
        dvmThrowException("Ljava/lang/IllegalArgumentException;",
            "invalid value for field");
        RETURN_VOID();
    }

    /* get a pointer to the field's data; performs access checks */
    fieldPtr = getFieldDataAddr(obj, declaringClass, slot, true, noAccessCheck);
    if (fieldPtr == NULL)
        RETURN_VOID();

    /* store 4 or 8 bytes */
    if (fieldType->primitiveType == PRIM_LONG ||
        fieldType->primitiveType == PRIM_DOUBLE)
    {
        fieldPtr->j = value.j;
    } else if (fieldType->primitiveType == PRIM_NOT) {
        if (slot < 0) {
            StaticField *sfield;
            sfield = (StaticField *)dvmSlotToField(declaringClass, slot);
            assert(fieldPtr == &sfield->value);
            dvmSetStaticFieldObject(sfield, value.l);
        } else {
            int offset = declaringClass->ifields[slot].byteOffset;
            assert(fieldPtr == (JValue *)BYTE_OFFSET(obj, offset));
            dvmSetFieldObject(obj, offset, value.l);
        }
    } else {
        fieldPtr->i = value.i;
    }

#ifdef WITH_TAINT_TRACKING
    /* If we got this far, we know the fields is okay to access and there
     * will not be a problem getting the field from the slot */
    {
	Field* field = dvmSlotToField(declaringClass, slot);
	assert(field != NULL);
	if (dvmIsStaticField(field)) {
	    StaticField* sfield = (StaticField*)field;
	    dvmSetStaticFieldTaint(sfield, valueTaint);
	} else {
	    /* Note, getFieldDataAddr() already checked that
	     * obj is of type declaringClass, so no need to check here
	     */
	    InstField* ifield = (InstField*)field;
	    if (fieldType->primitiveType == PRIM_LONG ||
		fieldType->primitiveType == PRIM_DOUBLE) {
		dvmSetFieldTaintWide(obj, ifield->byteOffset, valueTaint);
	    } else {
		dvmSetFieldTaint(obj, ifield->byteOffset, valueTaint);
	    }
	}
    }
#endif

    RETURN_VOID();
}