int DwarfDie::typeAlignment() const
{
switch (tag()) {
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
return std::min(typeSize(), 8); // TODO: 32bit support
case DW_TAG_array_type:
case DW_TAG_const_type:
case DW_TAG_restrict_type:
case DW_TAG_typedef:
case DW_TAG_volatile_type:
{
const auto typeDie = attribute(DW_AT_type).value<DwarfDie*>();
assert(typeDie);
return typeDie->typeAlignment();
}
case DW_TAG_pointer_type:
case DW_TAG_reference_type:
case DW_TAG_rvalue_reference_type:
return 8; // TODO: 32bit support
case DW_TAG_class_type:
case DW_TAG_structure_type:
case DW_TAG_union_type:
{
int align = 1;
foreach (const auto child, children()) {
if (child->tag() != DW_TAG_member && child->tag() != DW_TAG_inheritance)
continue;
if (child->isStaticMember())
continue;
const auto typeDie = child->attribute(DW_AT_type).value<DwarfDie*>();
assert(typeDie);
align = std::max(align, typeDie->typeAlignment());
}
return align;
}
}
return 0;
}
inline size_t alignedUpTo(size_t offset, TypePtr type) {
return alignedUpTo(offset, typeAlignment(type));
}
