/*
* 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();
}
/*
* 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();
}