lldb::user_id_t
DWARFDIE::GetID () const
{
const dw_offset_t die_offset = GetOffset();
if (die_offset != DW_INVALID_OFFSET)
{
lldb::user_id_t id = 0;
SymbolFileDWARF *dwarf = GetDWARF();
if (dwarf)
id = dwarf->MakeUserID(die_offset);
else
id = die_offset;
if (m_cu)
{
lldb::user_id_t cu_id = ((lldb::user_id_t)m_cu->GetID())<<32;
assert ((id&0xffffffff00000000ull) == 0 ||
(cu_id&0xffffffff00000000ll) == 0 ||
(id&0xffffffff00000000ull) == (cu_id&0xffffffff00000000ll));
id |= cu_id;
}
return id;
}
return LLDB_INVALID_UID;
}
lldb_private::Type *
DWARFDIE::ResolveTypeUID (lldb::user_id_t uid) const
{
SymbolFileDWARF *dwarf = GetDWARF();
if (dwarf)
return dwarf->ResolveTypeUID(uid);
else
return nullptr;
}
lldb::ModuleSP
DWARFDIE::GetModule () const
{
SymbolFileDWARF *dwarf = GetDWARF();
if (dwarf)
return dwarf->GetObjectFile()->GetModule();
else
return lldb::ModuleSP();
}
TypeSP
DWARFASTParserJava::ParseReferenceTypeFromDIE(const DWARFDIE &die)
{
SymbolFileDWARF *dwarf = die.GetDWARF();
dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
Declaration decl;
DWARFFormValue type_attr_value;
DWARFAttributes attributes;
const size_t num_attributes = die.GetAttributes(attributes);
for (uint32_t i = 0; i < num_attributes; ++i)
{
DWARFFormValue form_value;
dw_attr_t attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_type:
type_attr_value = form_value;
break;
default:
assert(false && "Unsupported attribute for DW_TAG_array_type");
}
}
}
DIERef type_die_ref(type_attr_value);
Type *pointee_type = dwarf->ResolveTypeUID(type_die_ref);
if (!pointee_type)
return nullptr;
CompilerType pointee_compiler_type = pointee_type->GetForwardCompilerType();
CompilerType reference_compiler_type = m_ast.CreateReferenceType(pointee_compiler_type);
TypeSP type_sp(new Type(die.GetID(), dwarf, reference_compiler_type.GetTypeName(), -1, nullptr,
type_die_ref.GetUID(dwarf), Type::eEncodingIsUID, &decl,
reference_compiler_type, Type::eResolveStateFull));
type_sp->SetEncodingType(pointee_type);
return type_sp;
}
bool
DWARFASTParserGo::CompleteTypeFromDWARF(const DWARFDIE &die, lldb_private::Type *type, CompilerType &compiler_type)
{
if (!die)
return false;
const dw_tag_t tag = die.Tag();
SymbolFileDWARF *dwarf = die.GetDWARF();
Log *log = nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
if (log)
dwarf->GetObjectFile()->GetModule()->LogMessageVerboseBacktrace(
log, "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...", dwarf->MakeUserID(die.GetOffset()),
DW_TAG_value_to_name(tag), type->GetName().AsCString());
assert(compiler_type);
DWARFAttributes attributes;
switch (tag)
{
case DW_TAG_structure_type:
{
{
if (die.HasChildren())
{
SymbolContext sc(die.GetLLDBCompileUnit());
ParseChildMembers(sc, die, compiler_type);
}
}
m_ast.CompleteStructType(compiler_type);
return (bool)compiler_type;
}
default:
assert(false && "not a forward go type decl!");
break;
}
return false;
}
lldb::TypeSP DWARFASTParserOCaml::ParseTypeFromDWARF(const SymbolContext &sc,
const DWARFDIE &die,
Log *log,
bool *type_is_new_ptr) {
if (type_is_new_ptr)
*type_is_new_ptr = false;
if (!die)
return nullptr;
SymbolFileDWARF *dwarf = die.GetDWARF();
Type *type_ptr = dwarf->m_die_to_type.lookup(die.GetDIE());
if (type_ptr == DIE_IS_BEING_PARSED)
return nullptr;
if (type_ptr != nullptr)
return type_ptr->shared_from_this();
TypeSP type_sp;
if (type_is_new_ptr)
*type_is_new_ptr = true;
switch (die.Tag()) {
case DW_TAG_base_type: {
type_sp = ParseBaseTypeFromDIE(die);
break;
}
case DW_TAG_array_type: {
break;
}
case DW_TAG_class_type: {
break;
}
case DW_TAG_reference_type: {
break;
}
}
if (!type_sp)
return nullptr;
DWARFDIE sc_parent_die = SymbolFileDWARF::GetParentSymbolContextDIE(die);
dw_tag_t sc_parent_tag = sc_parent_die.Tag();
SymbolContextScope *symbol_context_scope = nullptr;
if (sc_parent_tag == DW_TAG_compile_unit) {
symbol_context_scope = sc.comp_unit;
} else if (sc.function != nullptr && sc_parent_die) {
symbol_context_scope =
sc.function->GetBlock(true).FindBlockByID(sc_parent_die.GetID());
if (symbol_context_scope == nullptr)
symbol_context_scope = sc.function;
}
if (symbol_context_scope != nullptr)
type_sp->SetSymbolContextScope(symbol_context_scope);
dwarf->GetTypeList()->Insert(type_sp);
dwarf->m_die_to_type[die.GetDIE()] = type_sp.get();
return type_sp;
}
Function *DWARFASTParserOCaml::ParseFunctionFromDWARF(const SymbolContext &sc,
const DWARFDIE &die) {
DWARFRangeList func_ranges;
const char *name = NULL;
const char *mangled = NULL;
int decl_file = 0;
int decl_line = 0;
int decl_column = 0;
int call_file = 0;
int call_line = 0;
int call_column = 0;
DWARFExpression frame_base(die.GetCU());
Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_LANGUAGE));
if (die) {
SymbolFileDWARF *dwarf = die.GetDWARF();
if (log) {
dwarf->GetObjectFile()->GetModule()->LogMessage(
log, "DWARFASTParserOCaml::ParseFunctionFromDWARF (die = 0x%8.8x) %s "
"name = '%s')",
die.GetOffset(), DW_TAG_value_to_name(die.Tag()), die.GetName());
}
}
assert(die.Tag() == DW_TAG_subprogram);
if (die.Tag() != DW_TAG_subprogram)
return NULL;
if (die.GetDIENamesAndRanges(name, mangled, func_ranges, decl_file, decl_line,
decl_column, call_file, call_line, call_column,
&frame_base)) {
AddressRange func_range;
lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase(0);
lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd(0);
if (lowest_func_addr != LLDB_INVALID_ADDRESS &&
lowest_func_addr <= highest_func_addr) {
ModuleSP module_sp(die.GetModule());
func_range.GetBaseAddress().ResolveAddressUsingFileSections(
lowest_func_addr, module_sp->GetSectionList());
if (func_range.GetBaseAddress().IsValid())
func_range.SetByteSize(highest_func_addr - lowest_func_addr);
}
if (func_range.GetBaseAddress().IsValid()) {
Mangled func_name;
func_name.SetValue(ConstString(name), true);
FunctionSP func_sp;
std::unique_ptr<Declaration> decl_ap;
if (decl_file != 0 || decl_line != 0 || decl_column != 0)
decl_ap.reset(new Declaration(
sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file),
decl_line, decl_column));
SymbolFileDWARF *dwarf = die.GetDWARF();
Type *func_type = dwarf->m_die_to_type.lookup(die.GetDIE());
assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
if (dwarf->FixupAddress(func_range.GetBaseAddress())) {
const user_id_t func_user_id = die.GetID();
func_sp.reset(new Function(sc.comp_unit,
func_user_id, // UserID is the DIE offset
func_user_id, func_name, func_type,
func_range)); // first address range
if (func_sp.get() != NULL) {
if (frame_base.IsValid())
func_sp->GetFrameBaseExpression() = frame_base;
sc.comp_unit->AddFunction(func_sp);
return func_sp.get();
}
}
}
}
return NULL;
}
Function *
DWARFASTParserGo::ParseFunctionFromDWARF(const SymbolContext &sc, const DWARFDIE &die)
{
DWARFRangeList func_ranges;
const char *name = NULL;
const char *mangled = NULL;
int decl_file = 0;
int decl_line = 0;
int decl_column = 0;
int call_file = 0;
int call_line = 0;
int call_column = 0;
DWARFExpression frame_base(die.GetCU());
assert(die.Tag() == DW_TAG_subprogram);
if (die.Tag() != DW_TAG_subprogram)
return NULL;
if (die.GetDIENamesAndRanges(name, mangled, func_ranges, decl_file, decl_line, decl_column, call_file, call_line,
call_column, &frame_base))
{
// Union of all ranges in the function DIE (if the function is discontiguous)
AddressRange func_range;
lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase(0);
lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd(0);
if (lowest_func_addr != LLDB_INVALID_ADDRESS && lowest_func_addr <= highest_func_addr)
{
ModuleSP module_sp(die.GetModule());
func_range.GetBaseAddress().ResolveAddressUsingFileSections(lowest_func_addr, module_sp->GetSectionList());
if (func_range.GetBaseAddress().IsValid())
func_range.SetByteSize(highest_func_addr - lowest_func_addr);
}
if (func_range.GetBaseAddress().IsValid())
{
Mangled func_name;
func_name.SetValue(ConstString(name), false);
FunctionSP func_sp;
std::unique_ptr<Declaration> decl_ap;
if (decl_file != 0 || decl_line != 0 || decl_column != 0)
decl_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), decl_line,
decl_column));
SymbolFileDWARF *dwarf = die.GetDWARF();
// Supply the type _only_ if it has already been parsed
Type *func_type = dwarf->m_die_to_type.lookup(die.GetDIE());
assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
if (dwarf->FixupAddress(func_range.GetBaseAddress()))
{
const user_id_t func_user_id = dwarf->MakeUserID(die.GetOffset());
func_sp.reset(new Function(sc.comp_unit,
dwarf->MakeUserID(func_user_id), // UserID is the DIE offset
dwarf->MakeUserID(func_user_id), func_name, func_type,
func_range)); // first address range
if (func_sp.get() != NULL)
{
if (frame_base.IsValid())
func_sp->GetFrameBaseExpression() = frame_base;
sc.comp_unit->AddFunction(func_sp);
return func_sp.get();
}
}
}
}
return NULL;
}
TypeSP
DWARFASTParserGo::ParseTypeFromDWARF(const lldb_private::SymbolContext &sc, const DWARFDIE &die, lldb_private::Log *log,
bool *type_is_new_ptr)
{
TypeSP type_sp;
if (type_is_new_ptr)
*type_is_new_ptr = false;
if (die)
{
SymbolFileDWARF *dwarf = die.GetDWARF();
if (log)
{
dwarf->GetObjectFile()->GetModule()->LogMessage(
log, "DWARFASTParserGo::ParseTypeFromDWARF (die = 0x%8.8x) %s name = '%s')", die.GetOffset(),
DW_TAG_value_to_name(die.Tag()), die.GetName());
}
Type *type_ptr = dwarf->m_die_to_type.lookup(die.GetDIE());
TypeList *type_list = dwarf->GetTypeList();
if (type_ptr == NULL)
{
if (type_is_new_ptr)
*type_is_new_ptr = true;
const dw_tag_t tag = die.Tag();
bool is_forward_declaration = false;
DWARFAttributes attributes;
const char *type_name_cstr = NULL;
ConstString type_name_const_str;
Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
uint64_t byte_size = 0;
uint64_t go_kind = 0;
Declaration decl;
Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
CompilerType compiler_type;
DWARFFormValue form_value;
dw_attr_t attr;
switch (tag)
{
case DW_TAG_base_type:
case DW_TAG_pointer_type:
case DW_TAG_typedef:
case DW_TAG_unspecified_type:
{
// Set a bit that lets us know that we are currently parsing this
dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
const size_t num_attributes = die.GetAttributes(attributes);
lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
if (num_attributes > 0)
{
uint32_t i;
for (i = 0; i < num_attributes; ++i)
{
attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_name:
type_name_cstr = form_value.AsCString();
if (type_name_cstr)
type_name_const_str.SetCString(type_name_cstr);
break;
case DW_AT_byte_size:
byte_size = form_value.Unsigned();
break;
case DW_AT_encoding:
// = form_value.Unsigned();
break;
case DW_AT_type:
encoding_uid = form_value.Reference();
break;
case DW_AT_go_kind:
go_kind = form_value.Unsigned();
break;
default:
// Do we care about DW_AT_go_key or DW_AT_go_elem?
break;
}
}
}
}
DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", dwarf->MakeUserID(die.GetOffset()),
DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid);
switch (tag)
{
default:
break;
case DW_TAG_unspecified_type:
resolve_state = Type::eResolveStateFull;
compiler_type = m_ast.CreateVoidType(type_name_const_str);
break;
case DW_TAG_base_type:
resolve_state = Type::eResolveStateFull;
compiler_type = m_ast.CreateBaseType(go_kind, type_name_const_str, byte_size);
break;
case DW_TAG_pointer_type:
encoding_data_type = Type::eEncodingIsPointerUID;
break;
case DW_TAG_typedef:
encoding_data_type = Type::eEncodingIsTypedefUID;
CompilerType impl;
Type *type = dwarf->ResolveTypeUID(encoding_uid);
if (type)
{
if (go_kind == 0 && type->GetName() == type_name_const_str)
{
// Go emits extra typedefs as a forward declaration. Ignore these.
dwarf->m_die_to_type[die.GetDIE()] = type;
return type->shared_from_this();
}
impl = type->GetForwardCompilerType();
compiler_type = m_ast.CreateTypedefType (go_kind, type_name_const_str, impl);
}
break;
}
type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str, byte_size,
NULL, encoding_uid, encoding_data_type, &decl, compiler_type, resolve_state));
dwarf->m_die_to_type[die.GetDIE()] = type_sp.get();
}
break;
case DW_TAG_structure_type:
{
// Set a bit that lets us know that we are currently parsing this
dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
bool byte_size_valid = false;
const size_t num_attributes = die.GetAttributes(attributes);
if (num_attributes > 0)
{
uint32_t i;
for (i = 0; i < num_attributes; ++i)
{
attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_name:
type_name_cstr = form_value.AsCString();
type_name_const_str.SetCString(type_name_cstr);
break;
case DW_AT_byte_size:
byte_size = form_value.Unsigned();
byte_size_valid = true;
break;
case DW_AT_go_kind:
go_kind = form_value.Unsigned();
break;
// TODO: Should we use SLICETYPE's DW_AT_go_elem?
default:
break;
}
}
}
}
// TODO(ribrdb): Do we need this?
// UniqueDWARFASTType is large, so don't create a local variables on the
// stack, put it on the heap. This function is often called recursively
// and clang isn't good and sharing the stack space for variables in different blocks.
std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap(new UniqueDWARFASTType());
// Only try and unique the type if it has a name.
if (type_name_const_str &&
dwarf->GetUniqueDWARFASTTypeMap().Find(type_name_const_str, die, decl,
byte_size_valid ? byte_size : -1, *unique_ast_entry_ap))
{
// We have already parsed this type or from another
// compile unit. GCC loves to use the "one definition
// rule" which can result in multiple definitions
// of the same class over and over in each compile
// unit.
type_sp = unique_ast_entry_ap->m_type_sp;
if (type_sp)
{
dwarf->m_die_to_type[die.GetDIE()] = type_sp.get();
return type_sp;
}
}
DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die.GetOffset()),
DW_TAG_value_to_name(tag), type_name_cstr);
bool compiler_type_was_created = false;
compiler_type.SetCompilerType(&m_ast, dwarf->m_forward_decl_die_to_clang_type.lookup(die.GetDIE()));
if (!compiler_type)
{
compiler_type_was_created = true;
compiler_type = m_ast.CreateStructType(go_kind, type_name_const_str, byte_size);
}
type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str, byte_size,
NULL, LLDB_INVALID_UID, Type::eEncodingIsUID, &decl, compiler_type,
Type::eResolveStateForward));
// Add our type to the unique type map so we don't
// end up creating many copies of the same type over
// and over in the ASTContext for our module
unique_ast_entry_ap->m_type_sp = type_sp;
unique_ast_entry_ap->m_die = die;
unique_ast_entry_ap->m_declaration = decl;
unique_ast_entry_ap->m_byte_size = byte_size;
dwarf->GetUniqueDWARFASTTypeMap().Insert(type_name_const_str, *unique_ast_entry_ap);
if (!is_forward_declaration)
{
// Always start the definition for a class type so that
// if the class has child classes or types that require
// the class to be created for use as their decl contexts
// the class will be ready to accept these child definitions.
if (die.HasChildren() == false)
{
// No children for this struct/union/class, lets finish it
m_ast.CompleteStructType(compiler_type);
}
else if (compiler_type_was_created)
{
// Leave this as a forward declaration until we need
// to know the details of the type. lldb_private::Type
// will automatically call the SymbolFile virtual function
// "SymbolFileDWARF::CompleteType(Type *)"
// When the definition needs to be defined.
dwarf->m_forward_decl_die_to_clang_type[die.GetDIE()] = compiler_type.GetOpaqueQualType();
dwarf->m_forward_decl_clang_type_to_die[compiler_type.GetOpaqueQualType()] = die.GetDIERef();
// SetHasExternalStorage (compiler_type.GetOpaqueQualType(), true);
}
}
}
break;
case DW_TAG_subprogram:
case DW_TAG_subroutine_type:
{
// Set a bit that lets us know that we are currently parsing this
dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
bool is_variadic = false;
clang::StorageClass storage = clang::SC_None; //, Extern, Static, PrivateExtern
const size_t num_attributes = die.GetAttributes(attributes);
if (num_attributes > 0)
{
uint32_t i;
for (i = 0; i < num_attributes; ++i)
{
attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_name:
type_name_cstr = form_value.AsCString();
type_name_const_str.SetCString(type_name_cstr);
break;
case DW_AT_external:
if (form_value.Unsigned())
{
if (storage == clang::SC_None)
storage = clang::SC_Extern;
else
storage = clang::SC_PrivateExtern;
}
break;
case DW_AT_high_pc:
case DW_AT_low_pc:
break;
}
}
}
}
DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die.GetOffset()),
DW_TAG_value_to_name(tag), type_name_cstr);
std::vector<CompilerType> function_param_types;
// Parse the function children for the parameters
if (die.HasChildren())
{
ParseChildParameters(sc, die, is_variadic, function_param_types);
}
// compiler_type will get the function prototype clang type after this call
compiler_type = m_ast.CreateFunctionType(type_name_const_str, function_param_types.data(),
function_param_types.size(), is_variadic);
type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str, 0, NULL,
LLDB_INVALID_UID, Type::eEncodingIsUID, &decl, compiler_type,
Type::eResolveStateFull));
assert(type_sp.get());
}
break;
case DW_TAG_array_type:
{
// Set a bit that lets us know that we are currently parsing this
dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
lldb::user_id_t type_die_offset = DW_INVALID_OFFSET;
int64_t first_index = 0;
uint32_t byte_stride = 0;
uint32_t bit_stride = 0;
const size_t num_attributes = die.GetAttributes(attributes);
if (num_attributes > 0)
{
uint32_t i;
for (i = 0; i < num_attributes; ++i)
{
attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_name:
type_name_cstr = form_value.AsCString();
type_name_const_str.SetCString(type_name_cstr);
break;
case DW_AT_type:
type_die_offset = form_value.Reference();
break;
case DW_AT_byte_size:
break; // byte_size = form_value.Unsigned(); break;
case DW_AT_go_kind:
go_kind = form_value.Unsigned();
break;
default:
break;
}
}
}
DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die.GetOffset()),
DW_TAG_value_to_name(tag), type_name_cstr);
Type *element_type = dwarf->ResolveTypeUID(type_die_offset);
if (element_type)
{
std::vector<uint64_t> element_orders;
ParseChildArrayInfo(sc, die, first_index, element_orders, byte_stride, bit_stride);
if (byte_stride == 0)
byte_stride = element_type->GetByteSize();
CompilerType array_element_type = element_type->GetForwardCompilerType();
if (element_orders.size() > 0)
{
if (element_orders.size() > 1)
printf("golang: unsupported multi-dimensional array %s\n", type_name_cstr);
compiler_type =
m_ast.CreateArrayType(type_name_const_str, array_element_type, element_orders[0]);
}
else
{
compiler_type = m_ast.CreateArrayType(type_name_const_str, array_element_type, 0);
}
type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str,
byte_stride, NULL, type_die_offset, Type::eEncodingIsUID, &decl,
compiler_type, Type::eResolveStateFull));
type_sp->SetEncodingType(element_type);
}
}
}
break;
default:
dwarf->GetObjectFile()->GetModule()->ReportError("{0x%8.8x}: unhandled type tag 0x%4.4x (%s), "
"please file a bug and attach the file at the "
"start of this error message",
die.GetOffset(), tag, DW_TAG_value_to_name(tag));
break;
}
if (type_sp.get())
{
DWARFDIE sc_parent_die = SymbolFileDWARF::GetParentSymbolContextDIE(die);
dw_tag_t sc_parent_tag = sc_parent_die.Tag();
SymbolContextScope *symbol_context_scope = NULL;
if (sc_parent_tag == DW_TAG_compile_unit)
{
symbol_context_scope = sc.comp_unit;
}
else if (sc.function != NULL && sc_parent_die)
{
symbol_context_scope =
sc.function->GetBlock(true).FindBlockByID(dwarf->MakeUserID(sc_parent_die.GetOffset()));
if (symbol_context_scope == NULL)
symbol_context_scope = sc.function;
}
if (symbol_context_scope != NULL)
{
type_sp->SetSymbolContextScope(symbol_context_scope);
}
// We are ready to put this type into the uniqued list up at the module level
type_list->Insert(type_sp);
dwarf->m_die_to_type[die.GetDIE()] = type_sp.get();
}
}
else if (type_ptr != DIE_IS_BEING_PARSED)
{
type_sp = type_ptr->shared_from_this();
}
}
return type_sp;
}
TypeSP
DWARFASTParserJava::ParseArrayTypeFromDIE(const DWARFDIE &die)
{
SymbolFileDWARF *dwarf = die.GetDWARF();
dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
ConstString linkage_name;
DWARFFormValue type_attr_value;
lldb::addr_t data_offset = LLDB_INVALID_ADDRESS;
DWARFExpression length_expression(die.GetCU());
DWARFAttributes attributes;
const size_t num_attributes = die.GetAttributes(attributes);
for (uint32_t i = 0; i < num_attributes; ++i)
{
DWARFFormValue form_value;
dw_attr_t attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_linkage_name:
linkage_name.SetCString(form_value.AsCString());
break;
case DW_AT_type:
type_attr_value = form_value;
break;
case DW_AT_data_member_location:
data_offset = form_value.Unsigned();
break;
case DW_AT_declaration:
break;
default:
assert(false && "Unsupported attribute for DW_TAG_array_type");
}
}
}
for (DWARFDIE child_die = die.GetFirstChild(); child_die.IsValid(); child_die = child_die.GetSibling())
{
if (child_die.Tag() == DW_TAG_subrange_type)
{
DWARFAttributes attributes;
const size_t num_attributes = child_die.GetAttributes(attributes);
for (uint32_t i = 0; i < num_attributes; ++i)
{
DWARFFormValue form_value;
dw_attr_t attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_count:
if (form_value.BlockData())
length_expression.CopyOpcodeData(form_value.BlockData(), form_value.Unsigned(),
child_die.GetCU()->GetByteOrder(),
child_die.GetCU()->GetAddressByteSize());
break;
default:
assert(false && "Unsupported attribute for DW_TAG_subrange_type");
}
}
}
}
else
{
assert(false && "Unsupported child for DW_TAG_array_type");
}
}
DIERef type_die_ref(type_attr_value);
Type *element_type = dwarf->ResolveTypeUID(type_die_ref);
if (!element_type)
return nullptr;
CompilerType element_compiler_type = element_type->GetForwardCompilerType();
CompilerType array_compiler_type =
m_ast.CreateArrayType(element_compiler_type, length_expression, data_offset);
Declaration decl;
TypeSP type_sp(new Type(die.GetID(), dwarf, array_compiler_type.GetTypeName(), -1, nullptr,
type_die_ref.GetUID(dwarf), Type::eEncodingIsUID, &decl,
array_compiler_type, Type::eResolveStateFull));
type_sp->SetEncodingType(element_type);
return type_sp;
}
lldb::TypeSP
DWARFASTParserJava::ParseClassTypeFromDIE(const DWARFDIE &die, bool &is_new_type)
{
SymbolFileDWARF *dwarf = die.GetDWARF();
dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
Declaration decl;
ConstString name;
ConstString linkage_name;
bool is_forward_declaration = false;
uint32_t byte_size = 0;
DWARFAttributes attributes;
const size_t num_attributes = die.GetAttributes(attributes);
for (uint32_t i = 0; i < num_attributes; ++i)
{
DWARFFormValue form_value;
dw_attr_t attr = attributes.AttributeAtIndex(i);
if (attributes.ExtractFormValueAtIndex(i, form_value))
{
switch (attr)
{
case DW_AT_name:
name.SetCString(form_value.AsCString());
break;
case DW_AT_declaration:
is_forward_declaration = form_value.Boolean();
break;
case DW_AT_byte_size:
byte_size = form_value.Unsigned();
break;
case DW_AT_linkage_name:
linkage_name.SetCString(form_value.AsCString());
break;
default:
assert(false && "Unsupported attribute for DW_TAG_class_type");
}
}
}
UniqueDWARFASTType unique_ast_entry;
if (name)
{
std::string qualified_name;
if (die.GetQualifiedName(qualified_name))
{
name.SetCString(qualified_name.c_str());
if (dwarf->GetUniqueDWARFASTTypeMap().Find(name, die, Declaration(), -1, unique_ast_entry))
{
if (unique_ast_entry.m_type_sp)
{
dwarf->GetDIEToType()[die.GetDIE()] = unique_ast_entry.m_type_sp.get();
is_new_type = false;
return unique_ast_entry.m_type_sp;
}
}
}
}
if (is_forward_declaration)
{
DWARFDeclContext die_decl_ctx;
die.GetDWARFDeclContext(die_decl_ctx);
TypeSP type_sp = dwarf->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx);
if (type_sp)
{
// We found a real definition for this type elsewhere so lets use it
dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
is_new_type = false;
return type_sp;
}
}
CompilerType compiler_type(&m_ast, dwarf->GetForwardDeclDieToClangType().lookup(die.GetDIE()));
if (!compiler_type)
compiler_type = m_ast.CreateObjectType(name, linkage_name, byte_size);
is_new_type = true;
TypeSP type_sp(new Type(die.GetID(), dwarf, name,
-1, // byte size isn't specified
nullptr, LLDB_INVALID_UID, Type::eEncodingIsUID, &decl, compiler_type,
Type::eResolveStateForward));
// Add our type to the unique type map
unique_ast_entry.m_type_sp = type_sp;
unique_ast_entry.m_die = die;
unique_ast_entry.m_declaration = decl;
unique_ast_entry.m_byte_size = -1;
dwarf->GetUniqueDWARFASTTypeMap().Insert(name, unique_ast_entry);
if (!is_forward_declaration)
{
// Leave this as a forward declaration until we need to know the details of the type
dwarf->GetForwardDeclDieToClangType()[die.GetDIE()] = compiler_type.GetOpaqueQualType();
dwarf->GetForwardDeclClangTypeToDie()[compiler_type.GetOpaqueQualType()] = die.GetDIERef();
}
return type_sp;
}
