| //===-- Type.cpp ------------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Other libraries and framework includes |
| |
| #include "lldb/Core/DataExtractor.h" |
| #include "lldb/Core/DataBufferHeap.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/Scalar.h" |
| #include "lldb/Core/StreamString.h" |
| |
| #include "lldb/Symbol/ClangASTType.h" |
| #include "lldb/Symbol/ClangASTContext.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Symbol/SymbolContextScope.h" |
| #include "lldb/Symbol/SymbolFile.h" |
| #include "lldb/Symbol/Type.h" |
| #include "lldb/Symbol/TypeList.h" |
| |
| #include "lldb/Target/ExecutionContext.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/Target.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| Type::Type |
| ( |
| lldb::user_id_t uid, |
| SymbolFile* symbol_file, |
| const ConstString &name, |
| uint32_t byte_size, |
| SymbolContextScope *context, |
| user_id_t encoding_uid, |
| EncodingDataType encoding_uid_type, |
| const Declaration& decl, |
| clang_type_t clang_type, |
| ResolveState clang_type_resolve_state |
| ) : |
| UserID (uid), |
| m_name (name), |
| m_symbol_file (symbol_file), |
| m_context (context), |
| m_encoding_type (NULL), |
| m_encoding_uid (encoding_uid), |
| m_encoding_uid_type (encoding_uid_type), |
| m_byte_size (byte_size), |
| m_decl (decl), |
| m_clang_type (clang_type), |
| m_clang_type_resolve_state (clang_type ? clang_type_resolve_state : eResolveStateUnresolved) |
| { |
| } |
| |
| Type::Type () : |
| UserID (0), |
| m_name ("<INVALID TYPE>"), |
| m_symbol_file (NULL), |
| m_context (NULL), |
| m_encoding_type (NULL), |
| m_encoding_uid_type (eEncodingInvalid), |
| m_encoding_uid (0), |
| m_byte_size (0), |
| m_decl (), |
| m_clang_type (NULL), |
| m_clang_type_resolve_state (eResolveStateUnresolved) |
| { |
| } |
| |
| |
| Type::Type (const Type &rhs) : |
| UserID (rhs), |
| m_name (rhs.m_name), |
| m_symbol_file (rhs.m_symbol_file), |
| m_context (rhs.m_context), |
| m_encoding_type (rhs.m_encoding_type), |
| m_encoding_uid_type (rhs.m_encoding_uid_type), |
| m_encoding_uid (rhs.m_encoding_uid), |
| m_byte_size (rhs.m_byte_size), |
| m_decl (rhs.m_decl), |
| m_clang_type (rhs.m_clang_type), |
| m_clang_type_resolve_state (rhs.m_clang_type_resolve_state) |
| { |
| } |
| |
| const Type& |
| Type::operator= (const Type& rhs) |
| { |
| if (this != &rhs) |
| { |
| } |
| return *this; |
| } |
| |
| |
| void |
| Type::GetDescription (Stream *s, lldb::DescriptionLevel level, bool show_name) |
| { |
| *s << "id = " << (const UserID&)*this; |
| |
| // Call the name accessor to make sure we resolve the type name |
| if (show_name && GetName()) |
| *s << ", name = \"" << m_name << '"'; |
| |
| // Call the get byte size accesor so we resolve our byte size |
| if (GetByteSize()) |
| s->Printf(", byte-size = %zu", m_byte_size); |
| bool show_fullpaths = (level == lldb::eDescriptionLevelVerbose); |
| m_decl.Dump(s, show_fullpaths); |
| |
| if (m_clang_type) |
| { |
| *s << ", clang_type = \""; |
| ClangASTType::DumpTypeDescription (GetClangAST(), m_clang_type, s); |
| *s << '"'; |
| } |
| else if (m_encoding_uid != LLDB_INVALID_UID) |
| { |
| s->Printf(", type_uid = 0x%8.8x", m_encoding_uid); |
| switch (m_encoding_uid_type) |
| { |
| case eEncodingInvalid: break; |
| case eEncodingIsUID: s->PutCString(" (unresolved type)"); break; |
| case eEncodingIsConstUID: s->PutCString(" (unresolved const type)"); break; |
| case eEncodingIsRestrictUID: s->PutCString(" (unresolved restrict type)"); break; |
| case eEncodingIsVolatileUID: s->PutCString(" (unresolved volatile type)"); break; |
| case eEncodingIsTypedefUID: s->PutCString(" (unresolved typedef)"); break; |
| case eEncodingIsPointerUID: s->PutCString(" (unresolved pointer)"); break; |
| case eEncodingIsLValueReferenceUID: s->PutCString(" (unresolved L value reference)"); break; |
| case eEncodingIsRValueReferenceUID: s->PutCString(" (unresolved R value reference)"); break; |
| case eEncodingIsSyntheticUID: s->PutCString(" (synthetic type)"); break; |
| } |
| } |
| } |
| |
| |
| void |
| Type::Dump (Stream *s, bool show_context) |
| { |
| s->Printf("%.*p: ", (int)sizeof(void*) * 2, this); |
| s->Indent(); |
| *s << "Type" << (const UserID&)*this << ' '; |
| if (m_name) |
| *s << ", name = \"" << m_name << "\""; |
| |
| if (m_byte_size != 0) |
| s->Printf(", size = %zu", m_byte_size); |
| |
| if (show_context && m_context != NULL) |
| { |
| s->PutCString(", context = ( "); |
| m_context->DumpSymbolContext(s); |
| s->PutCString(" )"); |
| } |
| |
| bool show_fullpaths = false; |
| m_decl.Dump (s,show_fullpaths); |
| |
| if (m_clang_type) |
| { |
| *s << ", clang_type = " << m_clang_type << ' '; |
| |
| ClangASTType::DumpTypeDescription (GetClangAST(), m_clang_type, s); |
| } |
| else if (m_encoding_uid != LLDB_INVALID_UID) |
| { |
| *s << ", type_data = " << (uint64_t)m_encoding_uid; |
| switch (m_encoding_uid_type) |
| { |
| case eEncodingInvalid: break; |
| case eEncodingIsUID: s->PutCString(" (unresolved type)"); break; |
| case eEncodingIsConstUID: s->PutCString(" (unresolved const type)"); break; |
| case eEncodingIsRestrictUID: s->PutCString(" (unresolved restrict type)"); break; |
| case eEncodingIsVolatileUID: s->PutCString(" (unresolved volatile type)"); break; |
| case eEncodingIsTypedefUID: s->PutCString(" (unresolved typedef)"); break; |
| case eEncodingIsPointerUID: s->PutCString(" (unresolved pointer)"); break; |
| case eEncodingIsLValueReferenceUID: s->PutCString(" (unresolved L value reference)"); break; |
| case eEncodingIsRValueReferenceUID: s->PutCString(" (unresolved R value reference)"); break; |
| case eEncodingIsSyntheticUID: s->PutCString(" (synthetic type)"); break; |
| } |
| } |
| |
| // |
| // if (m_access) |
| // s->Printf(", access = %u", m_access); |
| s->EOL(); |
| } |
| |
| const ConstString & |
| Type::GetName() |
| { |
| if (!(m_name)) |
| { |
| if (ResolveClangType(eResolveStateForward)) |
| { |
| std::string type_name = ClangASTContext::GetTypeName (m_clang_type); |
| if (!type_name.empty()) |
| m_name.SetCString (type_name.c_str()); |
| } |
| } |
| return m_name; |
| } |
| |
| void |
| Type::DumpTypeName(Stream *s) |
| { |
| GetName().Dump(s, "<invalid-type-name>"); |
| } |
| |
| |
| void |
| Type::DumpValue |
| ( |
| ExecutionContext *exe_ctx, |
| Stream *s, |
| const DataExtractor &data, |
| uint32_t data_byte_offset, |
| bool show_types, |
| bool show_summary, |
| bool verbose, |
| lldb::Format format |
| ) |
| { |
| if (ResolveClangType(eResolveStateForward)) |
| { |
| if (show_types) |
| { |
| s->PutChar('('); |
| if (verbose) |
| s->Printf("Type{0x%8.8x} ", GetID()); |
| DumpTypeName (s); |
| s->PutCString(") "); |
| } |
| |
| ClangASTType::DumpValue (GetClangAST (), |
| m_clang_type, |
| exe_ctx, |
| s, |
| format == lldb::eFormatDefault ? GetFormat() : format, |
| data, |
| data_byte_offset, |
| GetByteSize(), |
| 0, // Bitfield bit size |
| 0, // Bitfield bit offset |
| show_types, |
| show_summary, |
| verbose, |
| 0); |
| } |
| } |
| |
| Type * |
| Type::GetEncodingType () |
| { |
| if (m_encoding_type == NULL && m_encoding_uid != LLDB_INVALID_UID) |
| m_encoding_type = m_symbol_file->ResolveTypeUID(m_encoding_uid); |
| return m_encoding_type; |
| } |
| |
| |
| |
| uint32_t |
| Type::GetByteSize() |
| { |
| if (m_byte_size == 0) |
| { |
| switch (m_encoding_uid_type) |
| { |
| case eEncodingInvalid: |
| case eEncodingIsSyntheticUID: |
| break; |
| case eEncodingIsUID: |
| case eEncodingIsConstUID: |
| case eEncodingIsRestrictUID: |
| case eEncodingIsVolatileUID: |
| case eEncodingIsTypedefUID: |
| { |
| Type *encoding_type = GetEncodingType (); |
| if (encoding_type) |
| m_byte_size = encoding_type->GetByteSize(); |
| if (m_byte_size == 0) |
| { |
| uint32_t bit_width = ClangASTType::GetClangTypeBitWidth (GetClangAST(), GetClangLayoutType()); |
| m_byte_size = (bit_width + 7 ) / 8; |
| } |
| } |
| break; |
| |
| // If we are a pointer or reference, then this is just a pointer size; |
| case eEncodingIsPointerUID: |
| case eEncodingIsLValueReferenceUID: |
| case eEncodingIsRValueReferenceUID: |
| m_byte_size = m_symbol_file->GetClangASTContext().GetPointerBitSize() / 8; |
| break; |
| } |
| } |
| return m_byte_size; |
| } |
| |
| |
| uint32_t |
| Type::GetNumChildren (bool omit_empty_base_classes) |
| { |
| if (ResolveClangType(eResolveStateForward)) |
| { |
| return ClangASTContext::GetNumChildren (m_symbol_file->GetClangASTContext().getASTContext(), |
| m_clang_type, |
| omit_empty_base_classes); |
| } |
| return 0; |
| } |
| |
| bool |
| Type::IsAggregateType () |
| { |
| if (ResolveClangType(eResolveStateForward)) |
| return ClangASTContext::IsAggregateType (m_clang_type); |
| return false; |
| } |
| |
| lldb::Format |
| Type::GetFormat () |
| { |
| // Make sure we resolve our type if it already hasn't been. |
| if (!ResolveClangType(eResolveStateForward)) |
| return lldb::eFormatInvalid; |
| return ClangASTType::GetFormat (m_clang_type); |
| } |
| |
| |
| |
| lldb::Encoding |
| Type::GetEncoding (uint32_t &count) |
| { |
| // Make sure we resolve our type if it already hasn't been. |
| if (!ResolveClangType(eResolveStateForward)) |
| return lldb::eEncodingInvalid; |
| |
| return ClangASTType::GetEncoding (m_clang_type, count); |
| } |
| |
| |
| |
| bool |
| Type::DumpValueInMemory |
| ( |
| ExecutionContext *exe_ctx, |
| Stream *s, |
| lldb::addr_t address, |
| lldb::AddressType address_type, |
| bool show_types, |
| bool show_summary, |
| bool verbose |
| ) |
| { |
| if (address != LLDB_INVALID_ADDRESS) |
| { |
| DataExtractor data; |
| if (exe_ctx->target) |
| data.SetByteOrder (exe_ctx->target->GetArchitecture().GetByteOrder()); |
| if (ReadFromMemory (exe_ctx, address, address_type, data)) |
| { |
| DumpValue(exe_ctx, s, data, 0, show_types, show_summary, verbose); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| bool |
| Type::ReadFromMemory (ExecutionContext *exe_ctx, lldb::addr_t addr, lldb::AddressType address_type, DataExtractor &data) |
| { |
| if (address_type == lldb::eAddressTypeFile) |
| { |
| // Can't convert a file address to anything valid without more |
| // context (which Module it came from) |
| return false; |
| } |
| |
| const uint32_t byte_size = GetByteSize(); |
| if (data.GetByteSize() < byte_size) |
| { |
| lldb::DataBufferSP data_sp(new DataBufferHeap (byte_size, '\0')); |
| data.SetData(data_sp); |
| } |
| |
| uint8_t* dst = (uint8_t*)data.PeekData(0, byte_size); |
| if (dst != NULL) |
| { |
| if (address_type == lldb::eAddressTypeHost) |
| { |
| // The address is an address in this process, so just copy it |
| memcpy (dst, (uint8_t*)NULL + addr, byte_size); |
| return true; |
| } |
| else |
| { |
| if (exe_ctx && exe_ctx->process) |
| { |
| Error error; |
| return exe_ctx->process->ReadMemory(addr, dst, byte_size, error) == byte_size; |
| } |
| } |
| } |
| return false; |
| } |
| |
| |
| bool |
| Type::WriteToMemory (ExecutionContext *exe_ctx, lldb::addr_t addr, lldb::AddressType address_type, DataExtractor &data) |
| { |
| return false; |
| } |
| |
| |
| TypeList* |
| Type::GetTypeList() |
| { |
| return GetSymbolFile()->GetTypeList(); |
| } |
| |
| const Declaration & |
| Type::GetDeclaration () const |
| { |
| return m_decl; |
| } |
| |
| bool |
| Type::ResolveClangType (ResolveState clang_type_resolve_state) |
| { |
| Type *encoding_type = NULL; |
| if (m_clang_type == NULL) |
| { |
| encoding_type = GetEncodingType(); |
| if (encoding_type) |
| { |
| switch (m_encoding_uid_type) |
| { |
| case eEncodingIsUID: |
| if (encoding_type->ResolveClangType(clang_type_resolve_state)) |
| { |
| m_clang_type = encoding_type->m_clang_type; |
| m_clang_type_resolve_state = encoding_type->m_clang_type_resolve_state; |
| } |
| break; |
| |
| case eEncodingIsConstUID: |
| m_clang_type = ClangASTContext::AddConstModifier (encoding_type->GetClangForwardType()); |
| break; |
| |
| case eEncodingIsRestrictUID: |
| m_clang_type = ClangASTContext::AddRestrictModifier (encoding_type->GetClangForwardType()); |
| break; |
| |
| case eEncodingIsVolatileUID: |
| m_clang_type = ClangASTContext::AddVolatileModifier (encoding_type->GetClangForwardType()); |
| break; |
| |
| case eEncodingIsTypedefUID: |
| m_clang_type = CreateClangTypedefType (this, encoding_type); |
| // Clear the name so it can get fully qualified in case the |
| // typedef is in a namespace. |
| m_name.Clear(); |
| break; |
| |
| case eEncodingIsPointerUID: |
| m_clang_type = CreateClangPointerType (encoding_type); |
| break; |
| |
| case eEncodingIsLValueReferenceUID: |
| m_clang_type = CreateClangLValueReferenceType (encoding_type); |
| break; |
| |
| case eEncodingIsRValueReferenceUID: |
| m_clang_type = CreateClangRValueReferenceType (encoding_type); |
| break; |
| |
| default: |
| assert(!"Unhandled encoding_data_type."); |
| break; |
| } |
| } |
| else |
| { |
| // We have no encoding type, return void? |
| clang_type_t void_clang_type = GetClangASTContext().GetBuiltInType_void(); |
| switch (m_encoding_uid_type) |
| { |
| case eEncodingIsUID: |
| m_clang_type = void_clang_type; |
| break; |
| |
| case eEncodingIsConstUID: |
| m_clang_type = ClangASTContext::AddConstModifier (void_clang_type); |
| break; |
| |
| case eEncodingIsRestrictUID: |
| m_clang_type = ClangASTContext::AddRestrictModifier (void_clang_type); |
| break; |
| |
| case eEncodingIsVolatileUID: |
| m_clang_type = ClangASTContext::AddVolatileModifier (void_clang_type); |
| break; |
| |
| case eEncodingIsTypedefUID: |
| m_clang_type = GetClangASTContext().CreateTypedefType (m_name.AsCString(), void_clang_type, NULL); |
| break; |
| |
| case eEncodingIsPointerUID: |
| m_clang_type = GetClangASTContext().CreatePointerType (void_clang_type); |
| break; |
| |
| case eEncodingIsLValueReferenceUID: |
| m_clang_type = GetClangASTContext().CreateLValueReferenceType (void_clang_type); |
| break; |
| |
| case eEncodingIsRValueReferenceUID: |
| m_clang_type = GetClangASTContext().CreateRValueReferenceType (void_clang_type); |
| break; |
| |
| default: |
| assert(!"Unhandled encoding_data_type."); |
| break; |
| } |
| } |
| } |
| |
| // Check if we have a forward reference to a class/struct/union/enum? |
| if (m_clang_type && m_clang_type_resolve_state < clang_type_resolve_state) |
| { |
| m_clang_type_resolve_state = eResolveStateFull; |
| if (!ClangASTType::IsDefined (m_clang_type)) |
| { |
| // We have a forward declaration, we need to resolve it to a complete |
| // definition. |
| m_symbol_file->ResolveClangOpaqueTypeDefinition (m_clang_type); |
| } |
| } |
| |
| // If we have an encoding type, then we need to make sure it is |
| // resolved appropriately. |
| if (m_encoding_uid != LLDB_INVALID_UID) |
| { |
| if (encoding_type == NULL) |
| encoding_type = GetEncodingType(); |
| if (encoding_type) |
| { |
| ResolveState encoding_clang_type_resolve_state = clang_type_resolve_state; |
| |
| if (clang_type_resolve_state == eResolveStateLayout) |
| { |
| switch (m_encoding_uid_type) |
| { |
| case eEncodingIsPointerUID: |
| case eEncodingIsLValueReferenceUID: |
| case eEncodingIsRValueReferenceUID: |
| encoding_clang_type_resolve_state = eResolveStateForward; |
| break; |
| default: |
| break; |
| } |
| } |
| encoding_type->ResolveClangType (encoding_clang_type_resolve_state); |
| } |
| } |
| return m_clang_type != NULL; |
| } |
| uint32_t |
| Type::GetEncodingMask () |
| { |
| uint32_t encoding_mask = 1u << m_encoding_uid_type; |
| Type *encoding_type = GetEncodingType(); |
| assert (encoding_type != this); |
| if (encoding_type) |
| encoding_mask |= encoding_type->GetEncodingMask (); |
| return encoding_mask; |
| } |
| |
| clang_type_t |
| Type::GetClangFullType () |
| { |
| ResolveClangType(eResolveStateFull); |
| return m_clang_type; |
| } |
| |
| clang_type_t |
| Type::GetClangLayoutType () |
| { |
| ResolveClangType(eResolveStateLayout); |
| return m_clang_type; |
| } |
| |
| clang_type_t |
| Type::GetClangForwardType () |
| { |
| ResolveClangType (eResolveStateForward); |
| return m_clang_type; |
| } |
| |
| clang::ASTContext * |
| Type::GetClangAST () |
| { |
| return GetClangASTContext().getASTContext(); |
| } |
| |
| ClangASTContext & |
| Type::GetClangASTContext () |
| { |
| return m_symbol_file->GetClangASTContext(); |
| } |
| |
| int |
| Type::Compare(const Type &a, const Type &b) |
| { |
| // Just compare the UID values for now... |
| lldb::user_id_t a_uid = a.GetID(); |
| lldb::user_id_t b_uid = b.GetID(); |
| if (a_uid < b_uid) |
| return -1; |
| if (a_uid > b_uid) |
| return 1; |
| return 0; |
| // if (a.getQualType() == b.getQualType()) |
| // return 0; |
| } |
| |
| |
| void * |
| Type::CreateClangPointerType (Type *type) |
| { |
| assert(type); |
| return GetClangASTContext().CreatePointerType(type->GetClangForwardType()); |
| } |
| |
| void * |
| Type::CreateClangTypedefType (Type *typedef_type, Type *base_type) |
| { |
| assert(typedef_type && base_type); |
| return GetClangASTContext().CreateTypedefType (typedef_type->GetName().AsCString(), |
| base_type->GetClangForwardType(), |
| typedef_type->GetSymbolFile()->GetClangDeclContextForTypeUID(typedef_type->GetID())); |
| } |
| |
| void * |
| Type::CreateClangLValueReferenceType (Type *type) |
| { |
| assert(type); |
| return GetClangASTContext().CreateLValueReferenceType(type->GetClangForwardType()); |
| } |
| |
| void * |
| Type::CreateClangRValueReferenceType (Type *type) |
| { |
| assert(type); |
| return GetClangASTContext().CreateRValueReferenceType (type->GetClangForwardType()); |
| } |
| |
| |