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Emit DW_TAG_structure_type including fields for structs

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This commit is contained in:
bjorn3 2019-11-15 21:32:52 +01:00
parent ab7ad2caeb
commit 08217d1bde
1 changed files with 36 additions and 8 deletions
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44
src/debuginfo/mod.rs
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@ -107,19 +107,22 @@ impl<'tcx> DebugContext<'tcx> {
let new_entry = |dwarf: &mut DwarfUnit, tag| dwarf.unit.add(dwarf.unit.root(), tag);
let primtive = |dwarf: &mut DwarfUnit, ate| {
let primitive = |dwarf: &mut DwarfUnit, ate| {
let type_id = new_entry(dwarf, gimli::DW_TAG_base_type);
let type_entry = dwarf.unit.get_mut(type_id);
type_entry.set(gimli::DW_AT_encoding, AttributeValue::Encoding(ate));
type_id
};
let name = format!("{}", ty);
let layout = self.tcx.layout_of(ParamEnv::reveal_all().and(ty)).unwrap();
let type_id = match ty.kind {
ty::Bool => primtive(&mut self.dwarf, gimli::DW_ATE_boolean),
ty::Char => primtive(&mut self.dwarf, gimli::DW_ATE_UTF),
ty::Uint(_) => primtive(&mut self.dwarf, gimli::DW_ATE_unsigned),
ty::Int(_) => primtive(&mut self.dwarf, gimli::DW_ATE_signed),
ty::Float(_) => primtive(&mut self.dwarf, gimli::DW_ATE_float),
ty::Bool => primitive(&mut self.dwarf, gimli::DW_ATE_boolean),
ty::Char => primitive(&mut self.dwarf, gimli::DW_ATE_UTF),
ty::Uint(_) => primitive(&mut self.dwarf, gimli::DW_ATE_unsigned),
ty::Int(_) => primitive(&mut self.dwarf, gimli::DW_ATE_signed),
ty::Float(_) => primitive(&mut self.dwarf, gimli::DW_ATE_float),
ty::Ref(_, pointee_ty, mutbl)
| ty::RawPtr(ty::TypeAndMut {
ty: pointee_ty,
@ -139,10 +142,35 @@ impl<'tcx> DebugContext<'tcx> {
type_id
}
ty::Adt(adt_def, _substs) if adt_def.is_struct() && !layout.is_unsized() => {
let type_id = new_entry(&mut self.dwarf, gimli::DW_TAG_structure_type);
// Ensure that type is inserted before recursing to avoid duplicates
self.types.insert(ty, type_id);
let variant = adt_def.non_enum_variant();
for (field_idx, field_def) in variant.fields.iter().enumerate() {
let field_offset = layout.fields.offset(field_idx);
let field_layout = layout.field(&layout::LayoutCx {
tcx: self.tcx,
param_env: ParamEnv::reveal_all(),
}, field_idx).unwrap();
let field_type = self.dwarf_ty(field_layout.ty);
let field_id = self.dwarf.unit.add(type_id, gimli::DW_TAG_member);
let field_entry = self.dwarf.unit.get_mut(field_id);
field_entry.set(gimli::DW_AT_name, AttributeValue::String(field_def.ident.as_str().to_string().into_bytes()));
field_entry.set(gimli::DW_AT_data_member_location, AttributeValue::Udata(field_offset.bytes()));
field_entry.set(gimli::DW_AT_type, AttributeValue::ThisUnitEntryRef(field_type));
}
type_id
}
_ => new_entry(&mut self.dwarf, gimli::DW_TAG_structure_type),
};
let name = format!("{}", ty);
let layout = self.tcx.layout_of(ParamEnv::reveal_all().and(ty)).unwrap();
let type_entry = self.dwarf.unit.get_mut(type_id);