[Lldb-commits] [lldb] r245090 - Move all clang type system DWARF type parsing into ClangASTContext.cpp.
Greg Clayton via lldb-commits
lldb-commits at lists.llvm.org
Fri Aug 14 13:02:06 PDT 2015
Author: gclayton
Date: Fri Aug 14 15:02:05 2015
New Revision: 245090
URL: http://llvm.org/viewvc/llvm-project?rev=245090&view=rev
Log:
Move all clang type system DWARF type parsing into ClangASTContext.cpp.
Another step towards isolating all language/AST specific code into the files to further abstract specific implementations of parsing types for a given language.
Modified:
lldb/trunk/include/lldb/Core/Module.h
lldb/trunk/include/lldb/Symbol/ClangASTContext.h
lldb/trunk/include/lldb/Symbol/SymbolFile.h
lldb/trunk/include/lldb/Symbol/TypeSystem.h
lldb/trunk/source/Core/Module.cpp
lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp
lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
lldb/trunk/source/Symbol/ClangASTContext.cpp
lldb/trunk/source/Symbol/SymbolFile.cpp
Modified: lldb/trunk/include/lldb/Core/Module.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Core/Module.h?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Core/Module.h (original)
+++ lldb/trunk/include/lldb/Core/Module.h Fri Aug 14 15:02:05 2015
@@ -947,6 +947,9 @@ public:
ClangASTContext &
GetClangASTContext ();
+ TypeSystem *
+ GetTypeSystemForLanguage (lldb::LanguageType language);
+
// Special error functions that can do printf style formatting that will prepend the message with
// something appropriate for this module (like the architecture, path and object name (if any)).
// This centralizes code so that everyone doesn't need to format their error and log messages on
Modified: lldb/trunk/include/lldb/Symbol/ClangASTContext.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Symbol/ClangASTContext.h?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Symbol/ClangASTContext.h (original)
+++ lldb/trunk/include/lldb/Symbol/ClangASTContext.h Fri Aug 14 15:02:05 2015
@@ -29,9 +29,17 @@
#include "lldb/lldb-enumerations.h"
#include "lldb/Core/ClangForward.h"
#include "lldb/Core/ConstString.h"
+#include "lldb/Core/dwarf.h"
#include "lldb/Symbol/CompilerType.h"
#include "lldb/Symbol/TypeSystem.h"
+
+// Forward definitions for DWARF plug-in for type parsing
+class DWARFCompileUnit;
+class DWARFDebugInfoEntry;
+class DWARFDIECollection;
+class SymbolFileDWARF;
+
namespace lldb_private {
class Declaration;
@@ -500,7 +508,60 @@ public:
{
return this;
}
-
+
+ lldb::TypeSP
+ ParseTypeFromDWARF (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die,
+ Log *log,
+ bool *type_is_new_ptr) override;
+
+
+ Function *
+ ParseFunctionFromDWARF (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die) override;
+
+ bool
+ ResolveClangOpaqueTypeDefinition (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *dwarf_cu,
+ const DWARFDebugInfoEntry* die,
+ Type *type,
+ CompilerType &clang_type) override;
+
+ bool
+ LayoutRecordType (SymbolFileDWARF *dwarf,
+ const clang::RecordDecl *record_decl,
+ uint64_t &bit_size,
+ uint64_t &alignment,
+ llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) override;
+
+
+ bool
+ DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *cu,
+ const DWARFDebugInfoEntry *die) override;
+
+ clang::NamespaceDecl *
+ ResolveNamespaceDIE (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *dwarf_cu,
+ const DWARFDebugInfoEntry *die) override;
+
+ clang::DeclContext*
+ GetClangDeclContextForTypeUID (SymbolFileDWARF *dwarf,
+ const lldb_private::SymbolContext &sc,
+ lldb::user_id_t type_uid) override;
+
+ clang::DeclContext*
+ GetClangDeclContextContainingTypeUID (SymbolFileDWARF *dwarf,
+ lldb::user_id_t type_uid) override;
+
+
//----------------------------------------------------------------------
// Tests
//----------------------------------------------------------------------
@@ -1021,7 +1082,128 @@ protected:
return clang::QualType();
}
-
+ struct LayoutInfo
+ {
+ LayoutInfo () :
+ bit_size(0),
+ alignment(0),
+ field_offsets(),
+ base_offsets(),
+ vbase_offsets()
+ {
+ }
+ uint64_t bit_size;
+ uint64_t alignment;
+ llvm::DenseMap<const clang::FieldDecl *, uint64_t> field_offsets;
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> base_offsets;
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> vbase_offsets;
+ };
+
+ typedef llvm::DenseMap<const clang::RecordDecl *, LayoutInfo> RecordDeclToLayoutMap;
+
+
+ // DWARF parsing functions
+ bool
+ ParseTemplateDIE (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die,
+ ClangASTContext::TemplateParameterInfos &template_param_infos);
+ bool
+ ParseTemplateParameterInfos (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die,
+ ClangASTContext::TemplateParameterInfos &template_param_infos);
+
+ clang::ClassTemplateDecl *
+ ParseClassTemplateDecl (SymbolFileDWARF *dwarf,
+ clang::DeclContext *decl_ctx,
+ lldb::AccessType access_type,
+ const char *parent_name,
+ int tag_decl_kind,
+ const ClangASTContext::TemplateParameterInfos &template_param_infos);
+
+ class DelayedAddObjCClassProperty;
+ typedef std::vector <DelayedAddObjCClassProperty> DelayedPropertyList;
+
+ size_t
+ ParseChildMembers (const lldb_private::SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die,
+ lldb_private::CompilerType &class_clang_type,
+ const lldb::LanguageType class_language,
+ std::vector<clang::CXXBaseSpecifier *>& base_classes,
+ std::vector<int>& member_accessibilities,
+ DWARFDIECollection& member_function_dies,
+ DelayedPropertyList& delayed_properties,
+ lldb::AccessType &default_accessibility,
+ bool &is_a_class,
+ LayoutInfo &layout_info);
+
+ size_t
+ ParseChildParameters (const lldb_private::SymbolContext& sc,
+ clang::DeclContext *containing_decl_ctx,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die,
+ bool skip_artificial,
+ bool &is_static,
+ bool &is_variadic,
+ std::vector<lldb_private::CompilerType>& function_args,
+ std::vector<clang::ParmVarDecl*>& function_param_decls,
+ unsigned &type_quals);
+
+
+ void
+ ParseChildArrayInfo (const lldb_private::SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die,
+ int64_t& first_index,
+ std::vector<uint64_t>& element_orders,
+ uint32_t& byte_stride,
+ uint32_t& bit_stride);
+
+
+ size_t
+ ParseChildEnumerators (const SymbolContext& sc,
+ lldb_private::CompilerType &clang_type,
+ bool is_signed,
+ uint32_t enumerator_byte_size,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die);
+
+ clang::DeclContext *
+ GetClangDeclContextForDIE (SymbolFileDWARF *dwarf,
+ const lldb_private::SymbolContext &sc,
+ DWARFCompileUnit *cu,
+ const DWARFDebugInfoEntry *die);
+
+ clang::DeclContext *
+ GetClangDeclContextForDIEOffset (SymbolFileDWARF *dwarf,
+ const lldb_private::SymbolContext &sc,
+ dw_offset_t die_offset);
+
+ clang::DeclContext *
+ GetClangDeclContextContainingDIE (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *cu,
+ const DWARFDebugInfoEntry *die,
+ const DWARFDebugInfoEntry **decl_ctx_die);
+
+ clang::DeclContext *
+ GetClangDeclContextContainingDIEOffset (SymbolFileDWARF *dwarf,
+ dw_offset_t die_offset);
+
+ bool
+ CopyUniqueClassMethodTypes (SymbolFileDWARF *dwarf,
+ SymbolFileDWARF *src_symfile,
+ Type *class_type,
+ DWARFCompileUnit* src_cu,
+ const DWARFDebugInfoEntry *src_class_die,
+ DWARFCompileUnit* dst_cu,
+ const DWARFDebugInfoEntry *dst_class_die,
+ DWARFDIECollection &failures);
//------------------------------------------------------------------
// Classes that inherit from ClangASTContext can see and modify these
//------------------------------------------------------------------
@@ -1043,6 +1225,8 @@ protected:
void * m_callback_baton;
uint32_t m_pointer_byte_size;
bool m_ast_owned;
+ RecordDeclToLayoutMap m_record_decl_to_layout_map;
+
private:
//------------------------------------------------------------------
// For ClangASTContext only
Modified: lldb/trunk/include/lldb/Symbol/SymbolFile.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Symbol/SymbolFile.h?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Symbol/SymbolFile.h (original)
+++ lldb/trunk/include/lldb/Symbol/SymbolFile.h Fri Aug 14 15:02:05 2015
@@ -146,6 +146,10 @@ public:
lldb_private::TypeList &type_list) = 0;
virtual ClangASTContext &
GetClangASTContext ();
+
+ virtual lldb_private::TypeSystem *
+ GetTypeSystemForLanguage (lldb::LanguageType language);
+
virtual ClangNamespaceDecl
FindNamespace (const SymbolContext& sc,
const ConstString &name,
Modified: lldb/trunk/include/lldb/Symbol/TypeSystem.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Symbol/TypeSystem.h?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Symbol/TypeSystem.h (original)
+++ lldb/trunk/include/lldb/Symbol/TypeSystem.h Fri Aug 14 15:02:05 2015
@@ -13,8 +13,13 @@
#include <string>
#include "lldb/lldb-private.h"
#include "lldb/Core/ClangForward.h"
+#include "clang/AST/CharUnits.h"
#include "clang/AST/Type.h"
+class SymbolFileDWARF;
+class DWARFCompileUnit;
+class DWARFDebugInfoEntry;
+
namespace lldb_private {
//----------------------------------------------------------------------
@@ -32,7 +37,71 @@ public:
virtual ClangASTContext *
AsClangASTContext() = 0;
-
+
+ //----------------------------------------------------------------------
+ // DWARF type parsing
+ //----------------------------------------------------------------------
+ virtual lldb::TypeSP
+ ParseTypeFromDWARF (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die,
+ Log *log,
+ bool *type_is_new_ptr) = 0;
+
+ virtual Function *
+ ParseFunctionFromDWARF (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die) = 0;
+
+ virtual bool
+ ResolveClangOpaqueTypeDefinition (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *dwarf_cu,
+ const DWARFDebugInfoEntry* die,
+ Type *type,
+ CompilerType &clang_type) = 0;
+
+ virtual bool
+ LayoutRecordType (SymbolFileDWARF *dwarf,
+ const clang::RecordDecl *record_decl,
+ uint64_t &bit_size,
+ uint64_t &alignment,
+ llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) = 0;
+
+ virtual bool
+ DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *cu,
+ const DWARFDebugInfoEntry *die)
+ {
+ return false;
+ }
+
+ virtual clang::NamespaceDecl *
+ ResolveNamespaceDIE (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *dwarf_cu,
+ const DWARFDebugInfoEntry *die)
+ {
+ return nullptr;
+ }
+
+ virtual clang::DeclContext*
+ GetClangDeclContextForTypeUID (SymbolFileDWARF *dwarf,
+ const lldb_private::SymbolContext &sc,
+ lldb::user_id_t type_uid)
+ {
+ return nullptr;
+ }
+
+ virtual clang::DeclContext*
+ GetClangDeclContextContainingTypeUID (SymbolFileDWARF *dwarf, lldb::user_id_t type_uid)
+ {
+ return nullptr;
+ }
+
//----------------------------------------------------------------------
// Tests
//----------------------------------------------------------------------
Modified: lldb/trunk/source/Core/Module.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/Module.cpp?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Core/Module.cpp (original)
+++ lldb/trunk/source/Core/Module.cpp Fri Aug 14 15:02:05 2015
@@ -416,6 +416,17 @@ Module::GetUUID()
return m_uuid;
}
+TypeSystem *
+Module::GetTypeSystemForLanguage (LanguageType language)
+{
+ if (language != eLanguageTypeSwift)
+ {
+ // For now assume all languages except swift use the ClangASTContext for types
+ return &GetClangASTContext();
+ }
+ return nullptr;
+}
+
ClangASTContext &
Module::GetClangASTContext ()
{
Modified: lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp (original)
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp Fri Aug 14 15:02:05 2015
@@ -1098,8 +1098,7 @@ DWARFCompileUnit::GetLanguageType()
const DWARFDebugInfoEntry *die = GetCompileUnitDIEOnly();
if (die)
- m_language_type = LanguageTypeFromDWARF(
- die->GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_language, 0));
+ m_language_type = LanguageTypeFromDWARF(die->GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_language, 0));
return m_language_type;
}
Modified: lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp (original)
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp Fri Aug 14 15:02:05 2015
@@ -87,8 +87,6 @@
#define DEBUG_PRINTF(fmt, ...)
#endif
-#define DIE_IS_BEING_PARSED ((lldb_private::Type*)1)
-
using namespace lldb;
using namespace lldb_private;
@@ -162,19 +160,6 @@ namespace {
} // anonymous namespace end
-static AccessType
-DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility)
-{
- switch (dwarf_accessibility)
- {
- case DW_ACCESS_public: return eAccessPublic;
- case DW_ACCESS_private: return eAccessPrivate;
- case DW_ACCESS_protected: return eAccessProtected;
- default: break;
- }
- return eAccessNone;
-}
-
static const char*
removeHostnameFromPathname(const char* path_from_dwarf)
{
@@ -242,86 +227,6 @@ resolveCompDir(const char* path_from_dwa
}
-#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
-
-class DIEStack
-{
-public:
-
- void Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
- {
- m_dies.push_back (DIEInfo(cu, die));
- }
-
-
- void LogDIEs (Log *log, SymbolFileDWARF *dwarf)
- {
- StreamString log_strm;
- const size_t n = m_dies.size();
- log_strm.Printf("DIEStack[%" PRIu64 "]:\n", (uint64_t)n);
- for (size_t i=0; i<n; i++)
- {
- DWARFCompileUnit *cu = m_dies[i].cu;
- const DWARFDebugInfoEntry *die = m_dies[i].die;
- std::string qualified_name;
- die->GetQualifiedName(dwarf, cu, qualified_name);
- log_strm.Printf ("[%" PRIu64 "] 0x%8.8x: %s name='%s'\n",
- (uint64_t)i,
- die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- qualified_name.c_str());
- }
- log->PutCString(log_strm.GetData());
- }
- void Pop ()
- {
- m_dies.pop_back();
- }
-
- class ScopedPopper
- {
- public:
- ScopedPopper (DIEStack &die_stack) :
- m_die_stack (die_stack),
- m_valid (false)
- {
- }
-
- void
- Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
- {
- m_valid = true;
- m_die_stack.Push (cu, die);
- }
-
- ~ScopedPopper ()
- {
- if (m_valid)
- m_die_stack.Pop();
- }
-
-
-
- protected:
- DIEStack &m_die_stack;
- bool m_valid;
- };
-
-protected:
- struct DIEInfo {
- DIEInfo (DWARFCompileUnit *c, const DWARFDebugInfoEntry *d) :
- cu(c),
- die(d)
- {
- }
- DWARFCompileUnit *cu;
- const DWARFDebugInfoEntry *die;
- };
- typedef std::vector<DIEInfo> Stack;
- Stack m_dies;
-};
-#endif
-
void
SymbolFileDWARF::Initialize()
{
@@ -573,8 +478,8 @@ SymbolFileDWARF::GetTypes (SymbolContext
// Gets the first parent that is a lexical block, function or inlined
// subroutine, or compile unit.
//----------------------------------------------------------------------
-static const DWARFDebugInfoEntry *
-GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die)
+const DWARFDebugInfoEntry *
+SymbolFileDWARF::GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die)
{
const DWARFDebugInfoEntry *die;
for (die = child_die->GetParent(); die != NULL; die = die->GetParent())
@@ -662,7 +567,7 @@ SymbolFileDWARF::GetUniqueDWARFASTTypeMa
return m_unique_ast_type_map;
}
-ClangASTContext &
+ClangASTContext &
SymbolFileDWARF::GetClangASTContext ()
{
if (GetDebugMapSymfile ())
@@ -683,6 +588,25 @@ SymbolFileDWARF::GetClangASTContext ()
return ast;
}
+TypeSystem *
+SymbolFileDWARF::GetTypeSystemForLanguage (LanguageType language)
+{
+ SymbolFileDWARFDebugMap * debug_map_symfile = GetDebugMapSymfile ();
+ if (debug_map_symfile)
+ return debug_map_symfile->GetTypeSystemForLanguage (language);
+ else
+ {
+ TypeSystem *type_system = m_obj_file->GetModule()->GetTypeSystemForLanguage (language);
+
+ if (type_system->AsClangASTContext())
+ {
+ // Get the ClangAST so that we register the ClangExternalASTSource callbacks if needed...
+ GetClangASTContext();
+ }
+ return type_system;
+ }
+}
+
void
SymbolFileDWARF::InitializeObject()
{
@@ -1165,135 +1089,12 @@ SymbolFileDWARF::ParseCompileUnitAtIndex
Function *
SymbolFileDWARF::ParseCompileUnitFunction (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die)
{
- DWARFDebugRanges::RangeList 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;
-
- assert (die->Tag() == DW_TAG_subprogram);
-
- if (die->Tag() != DW_TAG_subprogram)
- return NULL;
-
- if (die->GetDIENamesAndRanges (this,
- dwarf_cu,
- 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 (m_obj_file->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;
- if (mangled)
- func_name.SetValue(ConstString(mangled), true);
- else if (die->GetParent()->Tag() == DW_TAG_compile_unit &&
- LanguageRuntime::LanguageIsCPlusPlus(dwarf_cu->GetLanguageType()) &&
- name && strcmp(name, "main") != 0)
- {
- // If the mangled name is not present in the DWARF, generate the demangled name
- // using the decl context. We skip if the function is "main" as its name is
- // never mangled.
- bool is_static = false;
- bool is_variadic = false;
- unsigned type_quals = 0;
- std::vector<CompilerType> param_types;
- std::vector<clang::ParmVarDecl*> param_decls;
- const DWARFDebugInfoEntry *decl_ctx_die = NULL;
- DWARFDeclContext decl_ctx;
- StreamString sstr;
-
- die->GetDWARFDeclContext(this, dwarf_cu, decl_ctx);
- sstr << decl_ctx.GetQualifiedName();
-
- clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE(dwarf_cu,
- die,
- &decl_ctx_die);
- ParseChildParameters(sc,
- containing_decl_ctx,
- dwarf_cu,
- die,
- true,
- is_static,
- is_variadic,
- param_types,
- param_decls,
- type_quals);
- sstr << "(";
- for (size_t i = 0; i < param_types.size(); i++)
- {
- if (i > 0)
- sstr << ", ";
- sstr << param_types[i].GetTypeName();
- }
- if (is_variadic)
- sstr << ", ...";
- sstr << ")";
- if (type_quals & clang::Qualifiers::Const)
- sstr << " const";
-
- func_name.SetValue(ConstString(sstr.GetData()), false);
- }
- else
- func_name.SetValue(ConstString(name), false);
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
- 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));
-
- // Supply the type _only_ if it has already been parsed
- Type *func_type = m_die_to_type.lookup (die);
-
- assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
-
- if (FixupAddress (func_range.GetBaseAddress()))
- {
- const user_id_t func_user_id = MakeUserID(die->GetOffset());
- func_sp.reset(new Function (sc.comp_unit,
- MakeUserID(func_user_id), // UserID is the DIE offset
- 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;
+ if (type_system)
+ return type_system->ParseFunctionFromDWARF(sc, this, dwarf_cu, die);
+ else
+ return nullptr;
}
bool
@@ -1628,1341 +1429,260 @@ SymbolFileDWARF::ParseFunctionBlocks
}
bool
-SymbolFileDWARF::ParseTemplateDIE (DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *die,
- ClangASTContext::TemplateParameterInfos &template_param_infos)
+SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die)
{
- const dw_tag_t tag = die->Tag();
-
- switch (tag)
+ if (parent_die)
{
- case DW_TAG_template_type_parameter:
- case DW_TAG_template_value_parameter:
+ for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
{
- const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-
- DWARFDebugInfoEntry::Attributes attributes;
- const size_t num_attributes = die->GetAttributes (this,
- dwarf_cu,
- fixed_form_sizes,
- attributes);
- const char *name = NULL;
- Type *lldb_type = NULL;
- CompilerType clang_type;
- uint64_t uval64 = 0;
- bool uval64_valid = false;
- if (num_attributes > 0)
+ dw_tag_t tag = die->Tag();
+ bool check_virtuality = false;
+ switch (tag)
{
- DWARFFormValue form_value;
- for (size_t i=0; i<num_attributes; ++i)
- {
- const dw_attr_t attr = attributes.AttributeAtIndex(i);
-
- switch (attr)
- {
- case DW_AT_name:
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- name = form_value.AsCString(&get_debug_str_data());
- break;
-
- case DW_AT_type:
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- const dw_offset_t type_die_offset = form_value.Reference();
- lldb_type = ResolveTypeUID(type_die_offset);
- if (lldb_type)
- clang_type = lldb_type->GetClangForwardType();
- }
- break;
-
- case DW_AT_const_value:
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- uval64_valid = true;
- uval64 = form_value.Unsigned();
- }
- break;
- default:
- break;
- }
- }
-
- clang::ASTContext *ast = GetClangASTContext().getASTContext();
- if (!clang_type)
- clang_type = GetClangASTContext().GetBasicType(eBasicTypeVoid);
-
- if (clang_type)
- {
- bool is_signed = false;
- if (name && name[0])
- template_param_infos.names.push_back(name);
- else
- template_param_infos.names.push_back(NULL);
-
- if (tag == DW_TAG_template_value_parameter &&
- lldb_type != NULL &&
- clang_type.IsIntegerType (is_signed) &&
- uval64_valid)
- {
- llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed);
- template_param_infos.args.push_back (clang::TemplateArgument (*ast,
- llvm::APSInt(apint),
- ClangASTContext::GetQualType(clang_type)));
- }
- else
- {
- template_param_infos.args.push_back (clang::TemplateArgument (ClangASTContext::GetQualType(clang_type)));
- }
- }
- else
- {
- return false;
- }
-
+ case DW_TAG_inheritance:
+ case DW_TAG_subprogram:
+ check_virtuality = true;
+ break;
+ default:
+ break;
+ }
+ if (check_virtuality)
+ {
+ if (die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_virtuality, 0) != 0)
+ return true;
}
}
- return true;
-
- default:
- break;
}
return false;
}
-bool
-SymbolFileDWARF::ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die,
- ClangASTContext::TemplateParameterInfos &template_param_infos)
+clang::DeclContext*
+SymbolFileDWARF::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid)
{
-
- if (parent_die == NULL)
- return false;
-
- Args template_parameter_names;
- for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild();
- die != NULL;
- die = die->GetSibling())
+ if (UserIDMatches(type_uid))
{
- const dw_tag_t tag = die->Tag();
-
- switch (tag)
+ DWARFDebugInfo* debug_info = DebugInfo();
+ if (debug_info)
{
- case DW_TAG_template_type_parameter:
- case DW_TAG_template_value_parameter:
- ParseTemplateDIE (dwarf_cu, die, template_param_infos);
- break;
-
- default:
- break;
+ DWARFCompileUnitSP cu_sp;
+ const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp);
+ if (die)
+ {
+ TypeSystem *type_system = GetTypeSystemForLanguage(cu_sp->GetLanguageType());
+ if (type_system)
+ return type_system->GetClangDeclContextContainingTypeUID(this, type_uid);
+ }
}
}
- if (template_param_infos.args.empty())
- return false;
- return template_param_infos.args.size() == template_param_infos.names.size();
-}
-
-clang::ClassTemplateDecl *
-SymbolFileDWARF::ParseClassTemplateDecl (clang::DeclContext *decl_ctx,
- lldb::AccessType access_type,
- const char *parent_name,
- int tag_decl_kind,
- const ClangASTContext::TemplateParameterInfos &template_param_infos)
-{
- if (template_param_infos.IsValid())
- {
- std::string template_basename(parent_name);
- template_basename.erase (template_basename.find('<'));
- ClangASTContext &ast = GetClangASTContext();
-
- return ast.CreateClassTemplateDecl (decl_ctx,
- access_type,
- template_basename.c_str(),
- tag_decl_kind,
- template_param_infos);
- }
return NULL;
}
-class SymbolFileDWARF::DelayedAddObjCClassProperty
+clang::DeclContext*
+SymbolFileDWARF::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
{
-public:
- DelayedAddObjCClassProperty
- (
- const CompilerType &class_opaque_type,
- const char *property_name,
- const CompilerType &property_opaque_type, // The property type is only required if you don't have an ivar decl
- clang::ObjCIvarDecl *ivar_decl,
- const char *property_setter_name,
- const char *property_getter_name,
- uint32_t property_attributes,
- const ClangASTMetadata *metadata
- ) :
- m_class_opaque_type (class_opaque_type),
- m_property_name (property_name),
- m_property_opaque_type (property_opaque_type),
- m_ivar_decl (ivar_decl),
- m_property_setter_name (property_setter_name),
- m_property_getter_name (property_getter_name),
- m_property_attributes (property_attributes)
- {
- if (metadata != NULL)
- {
- m_metadata_ap.reset(new ClangASTMetadata());
- *m_metadata_ap = *metadata;
- }
- }
-
- DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs)
- {
- *this = rhs;
- }
-
- DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs)
- {
- m_class_opaque_type = rhs.m_class_opaque_type;
- m_property_name = rhs.m_property_name;
- m_property_opaque_type = rhs.m_property_opaque_type;
- m_ivar_decl = rhs.m_ivar_decl;
- m_property_setter_name = rhs.m_property_setter_name;
- m_property_getter_name = rhs.m_property_getter_name;
- m_property_attributes = rhs.m_property_attributes;
-
- if (rhs.m_metadata_ap.get())
+ if (UserIDMatches(type_uid))
+ {
+ DWARFDebugInfo* debug_info = DebugInfo();
+ if (debug_info)
{
- m_metadata_ap.reset (new ClangASTMetadata());
- *m_metadata_ap = *rhs.m_metadata_ap;
+ DWARFCompileUnitSP cu_sp;
+ const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp);
+ if (die)
+ {
+ TypeSystem *type_system = GetTypeSystemForLanguage(cu_sp->GetLanguageType());
+ if (type_system)
+ return type_system->GetClangDeclContextForTypeUID(this, sc, type_uid);
+ }
}
- return *this;
}
-
- bool
- Finalize()
- {
- ClangASTContext* ast = m_class_opaque_type.GetTypeSystem()->AsClangASTContext();
- assert(ast);
- return ast->AddObjCClassProperty (m_class_opaque_type,
- m_property_name,
- m_property_opaque_type,
- m_ivar_decl,
- m_property_setter_name,
- m_property_getter_name,
- m_property_attributes,
- m_metadata_ap.get());
- }
-private:
- CompilerType m_class_opaque_type;
- const char *m_property_name;
- CompilerType m_property_opaque_type;
- clang::ObjCIvarDecl *m_ivar_decl;
- const char *m_property_setter_name;
- const char *m_property_getter_name;
- uint32_t m_property_attributes;
- std::unique_ptr<ClangASTMetadata> m_metadata_ap;
-};
+ return NULL;
+}
-struct BitfieldInfo
+Type*
+SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid)
{
- uint64_t bit_size;
- uint64_t bit_offset;
-
- BitfieldInfo () :
- bit_size (LLDB_INVALID_ADDRESS),
- bit_offset (LLDB_INVALID_ADDRESS)
- {
- }
-
- void
- Clear()
+ if (UserIDMatches(type_uid))
{
- bit_size = LLDB_INVALID_ADDRESS;
- bit_offset = LLDB_INVALID_ADDRESS;
+ DWARFDebugInfo* debug_info = DebugInfo();
+ if (debug_info)
+ {
+ DWARFCompileUnitSP cu_sp;
+ const DWARFDebugInfoEntry* type_die = debug_info->GetDIEPtr(type_uid, &cu_sp);
+ const bool assert_not_being_parsed = true;
+ return ResolveTypeUID (cu_sp.get(), type_die, assert_not_being_parsed);
+ }
}
+ return NULL;
+}
- bool IsValid ()
+Type*
+SymbolFileDWARF::ResolveTypeUID (DWARFCompileUnit* cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed)
+{
+ if (die != NULL)
{
- return (bit_size != LLDB_INVALID_ADDRESS) &&
- (bit_offset != LLDB_INVALID_ADDRESS);
- }
-};
-
+ Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
+ if (log)
+ GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s'",
+ die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ die->GetName(this, cu));
-bool
-SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die)
-{
- if (parent_die)
- {
- for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+ // We might be coming in in the middle of a type tree (a class
+ // withing a class, an enum within a class), so parse any needed
+ // parent DIEs before we get to this one...
+ const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
+ switch (decl_ctx_die->Tag())
{
- dw_tag_t tag = die->Tag();
- bool check_virtuality = false;
- switch (tag)
- {
- case DW_TAG_inheritance:
- case DW_TAG_subprogram:
- check_virtuality = true;
- break;
- default:
- break;
- }
- if (check_virtuality)
+ case DW_TAG_structure_type:
+ case DW_TAG_union_type:
+ case DW_TAG_class_type:
{
- if (die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_virtuality, 0) != 0)
- return true;
+ // Get the type, which could be a forward declaration
+ if (log)
+ GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x",
+ die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ die->GetName(this, cu),
+ decl_ctx_die->GetOffset());
+//
+// Type *parent_type = ResolveTypeUID (cu, decl_ctx_die, assert_not_being_parsed);
+// if (child_requires_parent_class_union_or_struct_to_be_completed(die->Tag()))
+// {
+// if (log)
+// GetObjectFile()->GetModule()->LogMessage (log,
+// "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent full type for 0x%8.8x since die is a function",
+// die->GetOffset(),
+// DW_TAG_value_to_name(die->Tag()),
+// die->GetName(this, cu),
+// decl_ctx_die->GetOffset());
+// // Ask the type to complete itself if it already hasn't since if we
+// // want a function (method or static) from a class, the class must
+// // create itself and add it's own methods and class functions.
+// if (parent_type)
+// parent_type->GetClangFullType();
+// }
}
+ break;
+
+ default:
+ break;
}
+ return ResolveType (cu, die);
}
- return false;
+ return NULL;
}
-size_t
-SymbolFileDWARF::ParseChildMembers
-(
- const SymbolContext& sc,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die,
- CompilerType &class_clang_type,
- const LanguageType class_language,
- std::vector<clang::CXXBaseSpecifier *>& base_classes,
- std::vector<int>& member_accessibilities,
- DWARFDIECollection& member_function_dies,
- DelayedPropertyList& delayed_properties,
- AccessType& default_accessibility,
- bool &is_a_class,
- LayoutInfo &layout_info
-)
+// This function is used when SymbolFileDWARFDebugMap owns a bunch of
+// SymbolFileDWARF objects to detect if this DWARF file is the one that
+// can resolve a clang_type.
+bool
+SymbolFileDWARF::HasForwardDeclForClangType (const CompilerType &clang_type)
{
- if (parent_die == NULL)
- return 0;
+ CompilerType clang_type_no_qualifiers = ClangASTContext::RemoveFastQualifiers(clang_type);
+ const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
+ return die != NULL;
+}
- size_t count = 0;
- const DWARFDebugInfoEntry *die;
- const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
- uint32_t member_idx = 0;
- BitfieldInfo last_field_info;
- ModuleSP module = GetObjectFile()->GetModule();
- ClangASTContext* ast = class_clang_type.GetTypeSystem()->AsClangASTContext();
- if (ast == nullptr)
- return 0;
- for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+bool
+SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (CompilerType &clang_type)
+{
+ // We have a struct/union/class/enum that needs to be fully resolved.
+ CompilerType clang_type_no_qualifiers = ClangASTContext::RemoveFastQualifiers(clang_type);
+ const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
+ if (die == NULL)
{
- dw_tag_t tag = die->Tag();
-
- switch (tag)
- {
- case DW_TAG_member:
- case DW_TAG_APPLE_property:
- {
- DWARFDebugInfoEntry::Attributes attributes;
- const size_t num_attributes = die->GetAttributes (this,
- dwarf_cu,
- fixed_form_sizes,
- attributes);
- if (num_attributes > 0)
- {
- Declaration decl;
- //DWARFExpression location;
- const char *name = NULL;
- const char *prop_name = NULL;
- const char *prop_getter_name = NULL;
- const char *prop_setter_name = NULL;
- uint32_t prop_attributes = 0;
-
-
- bool is_artificial = false;
- lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
- AccessType accessibility = eAccessNone;
- uint32_t member_byte_offset = UINT32_MAX;
- size_t byte_size = 0;
- size_t bit_offset = 0;
- size_t bit_size = 0;
- bool is_external = false; // On DW_TAG_members, this means the member is static
- uint32_t i;
- for (i=0; i<num_attributes && !is_artificial; ++i)
- {
- const dw_attr_t attr = attributes.AttributeAtIndex(i);
- DWARFFormValue form_value;
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
- case DW_AT_type: encoding_uid = form_value.Reference(); break;
- case DW_AT_bit_offset: bit_offset = form_value.Unsigned(); break;
- case DW_AT_bit_size: bit_size = form_value.Unsigned(); break;
- case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
- case DW_AT_data_member_location:
- if (form_value.BlockData())
- {
- Value initialValue(0);
- Value memberOffset(0);
- const DWARFDataExtractor& debug_info_data = get_debug_info_data();
- uint32_t block_length = form_value.Unsigned();
- uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
- if (DWARFExpression::Evaluate(NULL, // ExecutionContext *
- NULL, // ClangExpressionVariableList *
- NULL, // ClangExpressionDeclMap *
- NULL, // RegisterContext *
- module,
- debug_info_data,
- block_offset,
- block_length,
- eRegisterKindDWARF,
- &initialValue,
- memberOffset,
- NULL))
- {
- member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
- }
- }
- else
- {
- // With DWARF 3 and later, if the value is an integer constant,
- // this form value is the offset in bytes from the beginning
- // of the containing entity.
- member_byte_offset = form_value.Unsigned();
- }
- break;
-
- case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break;
- case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
- case DW_AT_APPLE_property_name: prop_name = form_value.AsCString(&get_debug_str_data()); break;
- case DW_AT_APPLE_property_getter: prop_getter_name = form_value.AsCString(&get_debug_str_data()); break;
- case DW_AT_APPLE_property_setter: prop_setter_name = form_value.AsCString(&get_debug_str_data()); break;
- case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break;
- case DW_AT_external: is_external = form_value.Boolean(); break;
-
- default:
- case DW_AT_declaration:
- case DW_AT_description:
- case DW_AT_mutable:
- case DW_AT_visibility:
- case DW_AT_sibling:
- break;
- }
- }
- }
-
- if (prop_name)
- {
- ConstString fixed_getter;
- ConstString fixed_setter;
-
- // Check if the property getter/setter were provided as full
- // names. We want basenames, so we extract them.
-
- if (prop_getter_name && prop_getter_name[0] == '-')
- {
- ObjCLanguageRuntime::MethodName prop_getter_method(prop_getter_name, true);
- prop_getter_name = prop_getter_method.GetSelector().GetCString();
- }
-
- if (prop_setter_name && prop_setter_name[0] == '-')
- {
- ObjCLanguageRuntime::MethodName prop_setter_method(prop_setter_name, true);
- prop_setter_name = prop_setter_method.GetSelector().GetCString();
- }
-
- // If the names haven't been provided, they need to be
- // filled in.
-
- if (!prop_getter_name)
- {
- prop_getter_name = prop_name;
- }
- if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly))
- {
- StreamString ss;
-
- ss.Printf("set%c%s:",
- toupper(prop_name[0]),
- &prop_name[1]);
-
- fixed_setter.SetCString(ss.GetData());
- prop_setter_name = fixed_setter.GetCString();
- }
- }
-
- // Clang has a DWARF generation bug where sometimes it
- // represents fields that are references with bad byte size
- // and bit size/offset information such as:
- //
- // DW_AT_byte_size( 0x00 )
- // DW_AT_bit_size( 0x40 )
- // DW_AT_bit_offset( 0xffffffffffffffc0 )
- //
- // So check the bit offset to make sure it is sane, and if
- // the values are not sane, remove them. If we don't do this
- // then we will end up with a crash if we try to use this
- // type in an expression when clang becomes unhappy with its
- // recycled debug info.
-
- if (bit_offset > 128)
- {
- bit_size = 0;
- bit_offset = 0;
- }
-
- // FIXME: Make Clang ignore Objective-C accessibility for expressions
- if (class_language == eLanguageTypeObjC ||
- class_language == eLanguageTypeObjC_plus_plus)
- accessibility = eAccessNone;
-
- if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name))
- {
- // Not all compilers will mark the vtable pointer
- // member as artificial (llvm-gcc). We can't have
- // the virtual members in our classes otherwise it
- // throws off all child offsets since we end up
- // having and extra pointer sized member in our
- // class layouts.
- is_artificial = true;
- }
-
- // Handle static members
- if (is_external && member_byte_offset == UINT32_MAX)
- {
- Type *var_type = ResolveTypeUID(encoding_uid);
-
- if (var_type)
- {
- if (accessibility == eAccessNone)
- accessibility = eAccessPublic;
- ClangASTContext::AddVariableToRecordType (class_clang_type,
- name,
- var_type->GetClangLayoutType(),
- accessibility);
- }
- break;
- }
-
- if (is_artificial == false)
- {
- Type *member_type = ResolveTypeUID(encoding_uid);
-
- clang::FieldDecl *field_decl = NULL;
- if (tag == DW_TAG_member)
- {
- if (member_type)
- {
- if (accessibility == eAccessNone)
- accessibility = default_accessibility;
- member_accessibilities.push_back(accessibility);
-
- uint64_t field_bit_offset = (member_byte_offset == UINT32_MAX ? 0 : (member_byte_offset * 8));
- if (bit_size > 0)
- {
-
- BitfieldInfo this_field_info;
- this_field_info.bit_offset = field_bit_offset;
- this_field_info.bit_size = bit_size;
-
- /////////////////////////////////////////////////////////////
- // How to locate a field given the DWARF debug information
- //
- // AT_byte_size indicates the size of the word in which the
- // bit offset must be interpreted.
- //
- // AT_data_member_location indicates the byte offset of the
- // word from the base address of the structure.
- //
- // AT_bit_offset indicates how many bits into the word
- // (according to the host endianness) the low-order bit of
- // the field starts. AT_bit_offset can be negative.
- //
- // AT_bit_size indicates the size of the field in bits.
- /////////////////////////////////////////////////////////////
-
- if (byte_size == 0)
- byte_size = member_type->GetByteSize();
-
- if (GetObjectFile()->GetByteOrder() == eByteOrderLittle)
- {
- this_field_info.bit_offset += byte_size * 8;
- this_field_info.bit_offset -= (bit_offset + bit_size);
- }
- else
- {
- this_field_info.bit_offset += bit_offset;
- }
-
- // Update the field bit offset we will report for layout
- field_bit_offset = this_field_info.bit_offset;
-
- // If the member to be emitted did not start on a character boundary and there is
- // empty space between the last field and this one, then we need to emit an
- // anonymous member filling up the space up to its start. There are three cases
- // here:
- //
- // 1 If the previous member ended on a character boundary, then we can emit an
- // anonymous member starting at the most recent character boundary.
- //
- // 2 If the previous member did not end on a character boundary and the distance
- // from the end of the previous member to the current member is less than a
- // word width, then we can emit an anonymous member starting right after the
- // previous member and right before this member.
- //
- // 3 If the previous member did not end on a character boundary and the distance
- // from the end of the previous member to the current member is greater than
- // or equal a word width, then we act as in Case 1.
-
- const uint64_t character_width = 8;
- const uint64_t word_width = 32;
-
- // Objective-C has invalid DW_AT_bit_offset values in older versions
- // of clang, so we have to be careful and only insert unnamed bitfields
- // if we have a new enough clang.
- bool detect_unnamed_bitfields = true;
-
- if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus)
- detect_unnamed_bitfields = dwarf_cu->Supports_unnamed_objc_bitfields ();
-
- if (detect_unnamed_bitfields)
- {
- BitfieldInfo anon_field_info;
-
- if ((this_field_info.bit_offset % character_width) != 0) // not char aligned
- {
- uint64_t last_field_end = 0;
-
- if (last_field_info.IsValid())
- last_field_end = last_field_info.bit_offset + last_field_info.bit_size;
-
- if (this_field_info.bit_offset != last_field_end)
- {
- if (((last_field_end % character_width) == 0) || // case 1
- (this_field_info.bit_offset - last_field_end >= word_width)) // case 3
- {
- anon_field_info.bit_size = this_field_info.bit_offset % character_width;
- anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size;
- }
- else // case 2
- {
- anon_field_info.bit_size = this_field_info.bit_offset - last_field_end;
- anon_field_info.bit_offset = last_field_end;
- }
- }
- }
-
- if (anon_field_info.IsValid())
- {
- clang::FieldDecl *unnamed_bitfield_decl =
- ClangASTContext::AddFieldToRecordType (class_clang_type,
- NULL,
- GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width),
- accessibility,
- anon_field_info.bit_size);
-
- layout_info.field_offsets.insert(
- std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset));
- }
- }
- last_field_info = this_field_info;
- }
- else
- {
- last_field_info.Clear();
- }
-
- CompilerType member_clang_type = member_type->GetClangLayoutType();
-
- {
- // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>).
- // If the current field is at the end of the structure, then there is definitely no room for extra
- // elements and we override the type to array[0].
-
- CompilerType member_array_element_type;
- uint64_t member_array_size;
- bool member_array_is_incomplete;
-
- if (member_clang_type.IsArrayType(&member_array_element_type,
- &member_array_size,
- &member_array_is_incomplete) &&
- !member_array_is_incomplete)
- {
- uint64_t parent_byte_size = parent_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, UINT64_MAX);
-
- if (member_byte_offset >= parent_byte_size)
- {
- if (member_array_size != 1)
- {
- GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which extends beyond the bounds of 0x%8.8" PRIx64,
- MakeUserID(die->GetOffset()),
- name,
- encoding_uid,
- MakeUserID(parent_die->GetOffset()));
- }
-
- member_clang_type = GetClangASTContext().CreateArrayType(member_array_element_type, 0, false);
- }
- }
- }
-
- field_decl = ClangASTContext::AddFieldToRecordType (class_clang_type,
- name,
- member_clang_type,
- accessibility,
- bit_size);
-
- GetClangASTContext().SetMetadataAsUserID (field_decl, MakeUserID(die->GetOffset()));
+ // We have already resolved this type...
+ return true;
+ }
+ // Once we start resolving this type, remove it from the forward declaration
+ // map in case anyone child members or other types require this type to get resolved.
+ // The type will get resolved when all of the calls to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition
+ // are done.
+ m_forward_decl_clang_type_to_die.erase (clang_type_no_qualifiers.GetOpaqueQualType());
- layout_info.field_offsets.insert(std::make_pair(field_decl, field_bit_offset));
- }
- else
- {
- if (name)
- GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
- MakeUserID(die->GetOffset()),
- name,
- encoding_uid);
- else
- GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
- MakeUserID(die->GetOffset()),
- encoding_uid);
- }
- }
-
- if (prop_name != NULL && member_type)
- {
- clang::ObjCIvarDecl *ivar_decl = NULL;
-
- if (field_decl)
- {
- ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl);
- assert (ivar_decl != NULL);
- }
-
- ClangASTMetadata metadata;
- metadata.SetUserID (MakeUserID(die->GetOffset()));
- delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type,
- prop_name,
- member_type->GetClangLayoutType(),
- ivar_decl,
- prop_setter_name,
- prop_getter_name,
- prop_attributes,
- &metadata));
-
- if (ivar_decl)
- GetClangASTContext().SetMetadataAsUserID (ivar_decl, MakeUserID(die->GetOffset()));
- }
- }
- }
- ++member_idx;
- }
- break;
+ ClangASTContext* ast = clang_type.GetTypeSystem()->AsClangASTContext();
+ if (ast == NULL)
+ {
+ // Not a clang type
+ return true;
+ }
+
+ // Disable external storage for this type so we don't get anymore
+ // clang::ExternalASTSource queries for this type.
+ ast->SetHasExternalStorage (clang_type.GetOpaqueQualType(), false);
- case DW_TAG_subprogram:
- // Let the type parsing code handle this one for us.
- member_function_dies.Append (die);
- break;
+ DWARFDebugInfo* debug_info = DebugInfo();
- case DW_TAG_inheritance:
- {
- is_a_class = true;
- if (default_accessibility == eAccessNone)
- default_accessibility = eAccessPrivate;
- // TODO: implement DW_TAG_inheritance type parsing
- DWARFDebugInfoEntry::Attributes attributes;
- const size_t num_attributes = die->GetAttributes (this,
- dwarf_cu,
- fixed_form_sizes,
- attributes);
- if (num_attributes > 0)
- {
- Declaration decl;
- DWARFExpression location;
- lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
- AccessType accessibility = default_accessibility;
- bool is_virtual = false;
- bool is_base_of_class = true;
- off_t member_byte_offset = 0;
- uint32_t i;
- for (i=0; i<num_attributes; ++i)
- {
- const dw_attr_t attr = attributes.AttributeAtIndex(i);
- DWARFFormValue form_value;
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_type: encoding_uid = form_value.Reference(); break;
- case DW_AT_data_member_location:
- if (form_value.BlockData())
- {
- Value initialValue(0);
- Value memberOffset(0);
- const DWARFDataExtractor& debug_info_data = get_debug_info_data();
- uint32_t block_length = form_value.Unsigned();
- uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
- if (DWARFExpression::Evaluate (NULL,
- NULL,
- NULL,
- NULL,
- module,
- debug_info_data,
- block_offset,
- block_length,
- eRegisterKindDWARF,
- &initialValue,
- memberOffset,
- NULL))
- {
- member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
- }
- }
- else
- {
- // With DWARF 3 and later, if the value is an integer constant,
- // this form value is the offset in bytes from the beginning
- // of the containing entity.
- member_byte_offset = form_value.Unsigned();
- }
- break;
+ DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIE (die->GetOffset()).get();
+ Type *type = m_die_to_type.lookup (die);
- case DW_AT_accessibility:
- accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
- break;
-
- case DW_AT_virtuality:
- is_virtual = form_value.Boolean();
- break;
-
- case DW_AT_sibling:
- break;
+ Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
+ if (log)
+ GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log,
+ "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...",
+ MakeUserID(die->GetOffset()),
+ DW_TAG_value_to_name(die->Tag()),
+ type->GetName().AsCString());
+ assert (clang_type);
+ DWARFDebugInfoEntry::Attributes attributes;
- default:
- break;
- }
- }
- }
- Type *base_class_type = ResolveTypeUID(encoding_uid);
- if (base_class_type == NULL)
- {
- GetObjectFile()->GetModule()->ReportError("0x%8.8x: DW_TAG_inheritance failed to resolve the base class at 0x%8.8" PRIx64 " from enclosing type 0x%8.8x. \nPlease file a bug and attach the file at the start of this error message",
- die->GetOffset(),
- encoding_uid,
- parent_die->GetOffset());
- break;
- }
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
- CompilerType base_class_clang_type = base_class_type->GetClangFullType();
- assert (base_class_clang_type);
- if (class_language == eLanguageTypeObjC)
- {
- ast->SetObjCSuperClass(class_clang_type, base_class_clang_type);
- }
- else
- {
- base_classes.push_back (ast->CreateBaseClassSpecifier (base_class_clang_type.GetOpaqueQualType(),
- accessibility,
- is_virtual,
- is_base_of_class));
-
- if (is_virtual)
- {
- // Do not specify any offset for virtual inheritance. The DWARF produced by clang doesn't
- // give us a constant offset, but gives us a DWARF expressions that requires an actual object
- // in memory. the DW_AT_data_member_location for a virtual base class looks like:
- // DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, DW_OP_plus )
- // Given this, there is really no valid response we can give to clang for virtual base
- // class offsets, and this should eventually be removed from LayoutRecordType() in the external
- // AST source in clang.
- }
- else
- {
- layout_info.base_offsets.insert(
- std::make_pair(ast->GetAsCXXRecordDecl(base_class_clang_type.GetOpaqueQualType()),
- clang::CharUnits::fromQuantity(member_byte_offset)));
- }
- }
- }
- }
- break;
+ if (type_system)
+ return type_system->ResolveClangOpaqueTypeDefinition(this, dwarf_cu, die, type, clang_type);
- default:
- break;
- }
- }
-
- return count;
+ return false;
}
-
-clang::DeclContext*
-SymbolFileDWARF::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid)
+void
+SymbolFileDWARF::ClearDIEBeingParsed (const DWARFDebugInfoEntry* type_die)
{
- DWARFDebugInfo* debug_info = DebugInfo();
- if (debug_info && UserIDMatches(type_uid))
+ if (type_die)
{
- DWARFCompileUnitSP cu_sp;
- const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp);
- if (die)
- return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
+ if (m_die_to_type.lookup (type_die) == DIE_IS_BEING_PARSED)
+ m_die_to_type[type_die] = nullptr;
}
- return NULL;
}
-
-clang::DeclContext*
-SymbolFileDWARF::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
+Type*
+SymbolFileDWARF::GetCachedTypeForDIE (const DWARFDebugInfoEntry* type_die) const
{
- if (UserIDMatches(type_uid))
- return GetClangDeclContextForDIEOffset (sc, type_uid);
- return NULL;
+ if (type_die)
+ {
+ Type *type = m_die_to_type.lookup (type_die);
+ if (type != DIE_IS_BEING_PARSED)
+ return type;
+ }
+ return nullptr;
}
Type*
-SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid)
+SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed)
{
- if (UserIDMatches(type_uid))
+ if (type_die != NULL)
{
- DWARFDebugInfo* debug_info = DebugInfo();
- if (debug_info)
- {
- DWARFCompileUnitSP cu_sp;
- const DWARFDebugInfoEntry* type_die = debug_info->GetDIEPtr(type_uid, &cu_sp);
- const bool assert_not_being_parsed = true;
- return ResolveTypeUID (cu_sp.get(), type_die, assert_not_being_parsed);
+ Type *type = m_die_to_type.lookup (type_die);
+
+ if (type == NULL)
+ type = GetTypeForDIE (dwarf_cu, type_die).get();
+
+ if (assert_not_being_parsed)
+ {
+ if (type != DIE_IS_BEING_PARSED)
+ return type;
+
+ GetObjectFile()->GetModule()->ReportError ("Parsing a die that is being parsed die: 0x%8.8x: %s %s",
+ type_die->GetOffset(),
+ DW_TAG_value_to_name(type_die->Tag()),
+ type_die->GetName(this, dwarf_cu));
+
}
- }
- return NULL;
-}
-
-Type*
-SymbolFileDWARF::ResolveTypeUID (DWARFCompileUnit* cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed)
-{
- if (die != NULL)
- {
- Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s'",
- die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- die->GetName(this, cu));
-
- // We might be coming in in the middle of a type tree (a class
- // withing a class, an enum within a class), so parse any needed
- // parent DIEs before we get to this one...
- const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
- switch (decl_ctx_die->Tag())
- {
- case DW_TAG_structure_type:
- case DW_TAG_union_type:
- case DW_TAG_class_type:
- {
- // Get the type, which could be a forward declaration
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x",
- die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- die->GetName(this, cu),
- decl_ctx_die->GetOffset());
-//
-// Type *parent_type = ResolveTypeUID (cu, decl_ctx_die, assert_not_being_parsed);
-// if (child_requires_parent_class_union_or_struct_to_be_completed(die->Tag()))
-// {
-// if (log)
-// GetObjectFile()->GetModule()->LogMessage (log,
-// "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent full type for 0x%8.8x since die is a function",
-// die->GetOffset(),
-// DW_TAG_value_to_name(die->Tag()),
-// die->GetName(this, cu),
-// decl_ctx_die->GetOffset());
-// // Ask the type to complete itself if it already hasn't since if we
-// // want a function (method or static) from a class, the class must
-// // create itself and add it's own methods and class functions.
-// if (parent_type)
-// parent_type->GetClangFullType();
-// }
- }
- break;
-
- default:
- break;
- }
- return ResolveType (cu, die);
- }
- return NULL;
-}
-
-// This function is used when SymbolFileDWARFDebugMap owns a bunch of
-// SymbolFileDWARF objects to detect if this DWARF file is the one that
-// can resolve a clang_type.
-bool
-SymbolFileDWARF::HasForwardDeclForClangType (const CompilerType &clang_type)
-{
- CompilerType clang_type_no_qualifiers = ClangASTContext::RemoveFastQualifiers(clang_type);
- const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
- return die != NULL;
-}
-
-
-bool
-SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (CompilerType &clang_type)
-{
- // We have a struct/union/class/enum that needs to be fully resolved.
- CompilerType clang_type_no_qualifiers = ClangASTContext::RemoveFastQualifiers(clang_type);
- const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
- if (die == NULL)
- {
- // We have already resolved this type...
- return true;
- }
- // Once we start resolving this type, remove it from the forward declaration
- // map in case anyone child members or other types require this type to get resolved.
- // The type will get resolved when all of the calls to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition
- // are done.
- m_forward_decl_clang_type_to_die.erase (clang_type_no_qualifiers.GetOpaqueQualType());
-
- ClangASTContext* ast = clang_type.GetTypeSystem()->AsClangASTContext();
- if (ast == NULL)
- {
- // Not a clang type
- return true;
- }
-
- // Disable external storage for this type so we don't get anymore
- // clang::ExternalASTSource queries for this type.
- ast->SetHasExternalStorage (clang_type.GetOpaqueQualType(), false);
-
- DWARFDebugInfo* debug_info = DebugInfo();
-
- DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIE (die->GetOffset()).get();
- Type *type = m_die_to_type.lookup (die);
-
- const dw_tag_t tag = die->Tag();
-
- Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
- if (log)
- GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log,
- "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...",
- MakeUserID(die->GetOffset()),
- DW_TAG_value_to_name(tag),
- type->GetName().AsCString());
- assert (clang_type);
- DWARFDebugInfoEntry::Attributes attributes;
-
- switch (tag)
- {
- case DW_TAG_structure_type:
- case DW_TAG_union_type:
- case DW_TAG_class_type:
- {
- LayoutInfo layout_info;
-
- {
- if (die->HasChildren())
- {
- LanguageType class_language = eLanguageTypeUnknown;
- if (ClangASTContext::IsObjCObjectOrInterfaceType(clang_type))
- {
- class_language = eLanguageTypeObjC;
- // For objective C we don't start the definition when
- // the class is created.
- ClangASTContext::StartTagDeclarationDefinition (clang_type);
- }
-
- int tag_decl_kind = -1;
- AccessType default_accessibility = eAccessNone;
- if (tag == DW_TAG_structure_type)
- {
- tag_decl_kind = clang::TTK_Struct;
- default_accessibility = eAccessPublic;
- }
- else if (tag == DW_TAG_union_type)
- {
- tag_decl_kind = clang::TTK_Union;
- default_accessibility = eAccessPublic;
- }
- else if (tag == DW_TAG_class_type)
- {
- tag_decl_kind = clang::TTK_Class;
- default_accessibility = eAccessPrivate;
- }
-
- SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
- std::vector<clang::CXXBaseSpecifier *> base_classes;
- std::vector<int> member_accessibilities;
- bool is_a_class = false;
- // Parse members and base classes first
- DWARFDIECollection member_function_dies;
-
- DelayedPropertyList delayed_properties;
- ParseChildMembers (sc,
- dwarf_cu,
- die,
- clang_type,
- class_language,
- base_classes,
- member_accessibilities,
- member_function_dies,
- delayed_properties,
- default_accessibility,
- is_a_class,
- layout_info);
-
- // Now parse any methods if there were any...
- size_t num_functions = member_function_dies.Size();
- if (num_functions > 0)
- {
- for (size_t i=0; i<num_functions; ++i)
- {
- ResolveType(dwarf_cu, member_function_dies.GetDIEPtrAtIndex(i));
- }
- }
-
- if (class_language == eLanguageTypeObjC)
- {
- ConstString class_name (clang_type.GetTypeName());
- if (class_name)
- {
- DIEArray method_die_offsets;
- if (m_using_apple_tables)
- {
- if (m_apple_objc_ap.get())
- m_apple_objc_ap->FindByName(class_name.GetCString(), method_die_offsets);
- }
- else
- {
- if (!m_indexed)
- Index ();
-
- m_objc_class_selectors_index.Find (class_name, method_die_offsets);
- }
-
- if (!method_die_offsets.empty())
- {
- DWARFDebugInfo* debug_info = DebugInfo();
-
- DWARFCompileUnit* method_cu = NULL;
- const size_t num_matches = method_die_offsets.size();
- for (size_t i=0; i<num_matches; ++i)
- {
- const dw_offset_t die_offset = method_die_offsets[i];
- DWARFDebugInfoEntry *method_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &method_cu);
-
- if (method_die)
- ResolveType (method_cu, method_die);
- else
- {
- if (m_using_apple_tables)
- {
- GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_objc accelerator table had bad die 0x%8.8x for '%s')\n",
- die_offset, class_name.GetCString());
- }
- }
- }
- }
-
- for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end();
- pi != pe;
- ++pi)
- pi->Finalize();
- }
- }
-
- // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we
- // need to tell the clang type it is actually a class.
- if (class_language != eLanguageTypeObjC)
- {
- if (is_a_class && tag_decl_kind != clang::TTK_Class)
- GetClangASTContext().SetTagTypeKind (ClangASTContext::GetQualType(clang_type), clang::TTK_Class);
- }
-
- // Since DW_TAG_structure_type gets used for both classes
- // and structures, we may need to set any DW_TAG_member
- // fields to have a "private" access if none was specified.
- // When we parsed the child members we tracked that actual
- // accessibility value for each DW_TAG_member in the
- // "member_accessibilities" array. If the value for the
- // member is zero, then it was set to the "default_accessibility"
- // which for structs was "public". Below we correct this
- // by setting any fields to "private" that weren't correctly
- // set.
- if (is_a_class && !member_accessibilities.empty())
- {
- // This is a class and all members that didn't have
- // their access specified are private.
- GetClangASTContext().SetDefaultAccessForRecordFields (ast->GetAsRecordDecl(clang_type),
- eAccessPrivate,
- &member_accessibilities.front(),
- member_accessibilities.size());
- }
-
- if (!base_classes.empty())
- {
- // Make sure all base classes refer to complete types and not
- // forward declarations. If we don't do this, clang will crash
- // with an assertion in the call to clang_type.SetBaseClassesForClassType()
- bool base_class_error = false;
- for (auto &base_class : base_classes)
- {
- clang::TypeSourceInfo *type_source_info = base_class->getTypeSourceInfo();
- if (type_source_info)
- {
- CompilerType base_class_type (GetClangASTContext().getASTContext(), type_source_info->getType());
- if (base_class_type.GetCompleteType() == false)
- {
- if (!base_class_error)
- {
- GetObjectFile()->GetModule()->ReportError ("DWARF DIE at 0x%8.8x for class '%s' has a base class '%s' that is a forward declaration, not a complete definition.\nPlease file a bug against the compiler and include the preprocessed output for %s",
- die->GetOffset(),
- die->GetName(this, dwarf_cu),
- base_class_type.GetTypeName().GetCString(),
- sc.comp_unit ? sc.comp_unit->GetPath().c_str() : "the source file");
- }
- // We have no choice other than to pretend that the base class
- // is complete. If we don't do this, clang will crash when we
- // call setBases() inside of "clang_type.SetBaseClassesForClassType()"
- // below. Since we provide layout assistance, all ivars in this
- // class and other classes will be fine, this is the best we can do
- // short of crashing.
-
- ClangASTContext::StartTagDeclarationDefinition (base_class_type);
- ClangASTContext::CompleteTagDeclarationDefinition (base_class_type);
- }
- }
- }
- ast->SetBaseClassesForClassType (clang_type.GetOpaqueQualType(),
- &base_classes.front(),
- base_classes.size());
-
- // Clang will copy each CXXBaseSpecifier in "base_classes"
- // so we have to free them all.
- ClangASTContext::DeleteBaseClassSpecifiers (&base_classes.front(),
- base_classes.size());
- }
- }
- }
-
- ClangASTContext::BuildIndirectFields (clang_type);
- ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
-
- if (!layout_info.field_offsets.empty() ||
- !layout_info.base_offsets.empty() ||
- !layout_info.vbase_offsets.empty() )
- {
- if (type)
- layout_info.bit_size = type->GetByteSize() * 8;
- if (layout_info.bit_size == 0)
- layout_info.bit_size = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, 0) * 8;
-
- clang::CXXRecordDecl *record_decl = ast->GetAsCXXRecordDecl(clang_type.GetOpaqueQualType());
- if (record_decl)
- {
- if (log)
- {
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) caching layout info for record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])",
- static_cast<void*>(clang_type.GetOpaqueQualType()),
- static_cast<void*>(record_decl),
- layout_info.bit_size,
- layout_info.alignment,
- static_cast<uint32_t>(layout_info.field_offsets.size()),
- static_cast<uint32_t>(layout_info.base_offsets.size()),
- static_cast<uint32_t>(layout_info.vbase_offsets.size()));
-
- uint32_t idx;
- {
- llvm::DenseMap<const clang::FieldDecl *, uint64_t>::const_iterator pos,
- end = layout_info.field_offsets.end();
- for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx)
- {
- GetObjectFile()->GetModule()->LogMessage(
- log, "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) field[%u] = "
- "{ bit_offset=%u, name='%s' }",
- static_cast<void *>(clang_type.GetOpaqueQualType()), idx,
- static_cast<uint32_t>(pos->second), pos->first->getNameAsString().c_str());
- }
- }
-
- {
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos,
- base_end = layout_info.base_offsets.end();
- for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end;
- ++base_pos, ++idx)
- {
- GetObjectFile()->GetModule()->LogMessage(
- log, "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) base[%u] "
- "= { byte_offset=%u, name='%s' }",
- clang_type.GetOpaqueQualType(), idx, (uint32_t)base_pos->second.getQuantity(),
- base_pos->first->getNameAsString().c_str());
- }
- }
- {
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos,
- vbase_end = layout_info.vbase_offsets.end();
- for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end;
- ++vbase_pos, ++idx)
- {
- GetObjectFile()->GetModule()->LogMessage(
- log, "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) "
- "vbase[%u] = { byte_offset=%u, name='%s' }",
- static_cast<void *>(clang_type.GetOpaqueQualType()), idx,
- static_cast<uint32_t>(vbase_pos->second.getQuantity()),
- vbase_pos->first->getNameAsString().c_str());
- }
- }
- }
- m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info));
- }
- }
- }
-
- return (bool)clang_type;
-
- case DW_TAG_enumeration_type:
- ClangASTContext::StartTagDeclarationDefinition (clang_type);
- if (die->HasChildren())
- {
- SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
- bool is_signed = false;
- clang_type.IsIntegerType(is_signed);
- ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), dwarf_cu, die);
- }
- ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
- return (bool)clang_type;
-
- default:
- assert(false && "not a forward clang type decl!");
- break;
- }
- return false;
-}
-
-Type*
-SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed)
-{
- if (type_die != NULL)
- {
- Type *type = m_die_to_type.lookup (type_die);
-
- if (type == NULL)
- type = GetTypeForDIE (dwarf_cu, type_die).get();
-
- if (assert_not_being_parsed)
- {
- if (type != DIE_IS_BEING_PARSED)
- return type;
-
- GetObjectFile()->GetModule()->ReportError ("Parsing a die that is being parsed die: 0x%8.8x: %s %s",
- type_die->GetOffset(),
- DW_TAG_value_to_name(type_die->Tag()),
- type_die->GetName(this, dwarf_cu));
-
- }
- else
- return type;
+ else
+ return type;
}
return NULL;
}
@@ -2980,6 +1700,25 @@ SymbolFileDWARF::GetCompUnitForDWARFComp
return (CompileUnit*)dwarf_cu->GetUserData();
}
+size_t
+SymbolFileDWARF::GetObjCMethodDIEOffsets (ConstString class_name, DIEArray &method_die_offsets)
+{
+ method_die_offsets.clear();
+ if (m_using_apple_tables)
+ {
+ if (m_apple_objc_ap.get())
+ m_apple_objc_ap->FindByName(class_name.GetCString(), method_die_offsets);
+ }
+ else
+ {
+ if (!m_indexed)
+ Index ();
+
+ m_objc_class_selectors_index.Find (class_name, method_die_offsets);
+ }
+ return method_die_offsets.size();
+}
+
bool
SymbolFileDWARF::GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, SymbolContext& sc)
{
@@ -3460,64 +2199,17 @@ SymbolFileDWARF::NamespaceDeclMatchesThi
return false;
}
-bool
-SymbolFileDWARF::DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl,
- DWARFCompileUnit* cu,
- const DWARFDebugInfoEntry* die)
+uint32_t
+SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
{
- // No namespace specified, so the answer is
- if (namespace_decl == NULL)
- return true;
-
Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
- const DWARFDebugInfoEntry *decl_ctx_die = NULL;
- clang::DeclContext *die_clang_decl_ctx = GetClangDeclContextContainingDIE (cu, die, &decl_ctx_die);
- if (decl_ctx_die)
- {
- clang::NamespaceDecl *clang_namespace_decl = namespace_decl->GetNamespaceDecl();
-
- if (clang_namespace_decl)
- {
- if (decl_ctx_die->Tag() != DW_TAG_namespace)
- {
- if (log)
- GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent is not a namespace");
- return false;
- }
-
- if (clang_namespace_decl == die_clang_decl_ctx)
- return true;
- else
- return false;
- }
- else
- {
- // We have a namespace_decl that was not NULL but it contained
- // a NULL "clang::NamespaceDecl", so this means the global namespace
- // So as long the contained decl context DIE isn't a namespace
- // we should be ok.
- if (decl_ctx_die->Tag() != DW_TAG_namespace)
- return true;
- }
- }
-
- if (log)
- GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent doesn't exist");
-
- return false;
-}
-uint32_t
-SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
-{
- Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
-
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables)",
- name.GetCString(),
- static_cast<const void*>(namespace_decl),
- append, max_matches);
+ if (log)
+ GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables)",
+ name.GetCString(),
+ static_cast<const void*>(namespace_decl),
+ append, max_matches);
if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
return 0;
@@ -3590,8 +2282,13 @@ SymbolFileDWARF::FindGlobalVariables (co
{
sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
- if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
- continue;
+ if (namespace_decl)
+ {
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
+
+ if (!type_system->DIEIsInNamespace (namespace_decl, this, dwarf_cu, die))
+ continue;
+ }
ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS, die, false, false, &variables);
@@ -3849,11 +2546,14 @@ SymbolFileDWARF::FunctionDieMatchesParti
// If we are looking only for methods, throw away all the ones that are or aren't in C++ classes:
if (name_type_mask == eFunctionNameTypeMethod || name_type_mask == eFunctionNameTypeBase)
{
- clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIEOffset(die->GetOffset());
- if (!containing_decl_ctx)
+ const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (dwarf_cu, die);
+
+ if (decl_ctx_die == nullptr)
return false;
-
- bool is_cxx_method = DeclKindIsCXXClass(containing_decl_ctx->getDeclKind());
+
+ const dw_tag_t decl_ctx_tag = decl_ctx_die->Tag();
+
+ bool is_cxx_method = (decl_ctx_tag == DW_TAG_structure_type) || (decl_ctx_tag == DW_TAG_class_type);
if (name_type_mask == eFunctionNameTypeMethod)
{
@@ -4022,9 +2722,14 @@ SymbolFileDWARF::FindFunctions (const Co
const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
if (die)
{
- if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
- continue;
-
+ if (namespace_decl)
+ {
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
+
+ if (!type_system->DIEIsInNamespace (namespace_decl, this, dwarf_cu, die))
+ continue;
+ }
+
if (resolved_dies.find(die) == resolved_dies.end())
{
if (ResolveFunction (dwarf_cu, die, include_inlines, sc_list))
@@ -4088,8 +2793,13 @@ SymbolFileDWARF::FindFunctions (const Co
const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
if (die)
{
- if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
- continue;
+ if (namespace_decl)
+ {
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
+
+ if (!type_system->DIEIsInNamespace (namespace_decl, this, dwarf_cu, die))
+ continue;
+ }
// If we get to here, the die is good, and we should add it:
if (resolved_dies.find(die) == resolved_dies.end())
@@ -4213,9 +2923,14 @@ SymbolFileDWARF::FindFunctions (const Co
const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu);
if (die)
{
- if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
- continue;
-
+ if (namespace_decl)
+ {
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
+
+ if (!type_system->DIEIsInNamespace (namespace_decl, this, dwarf_cu, die))
+ continue;
+ }
+
// If we get to here, the die is good, and we should add it:
if (resolved_dies.find(die) == resolved_dies.end())
{
@@ -4390,8 +3105,13 @@ SymbolFileDWARF::FindTypes (const Symbol
if (die)
{
- if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
- continue;
+ if (namespace_decl)
+ {
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
+
+ if (!type_system->DIEIsInNamespace (namespace_decl, this, dwarf_cu, die))
+ continue;
+ }
Type *matching_type = ResolveType (dwarf_cu, die);
if (matching_type)
@@ -4494,15 +3214,23 @@ SymbolFileDWARF::FindNamespace (const Sy
if (die)
{
- if (parent_namespace_decl && !DIEIsInNamespace (parent_namespace_decl, dwarf_cu, die))
- continue;
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
- clang::NamespaceDecl *clang_namespace_decl = ResolveNamespaceDIE (dwarf_cu, die);
- if (clang_namespace_decl)
+ if (parent_namespace_decl)
{
- namespace_decl.SetASTContext (GetClangASTContext().getASTContext());
- namespace_decl.SetNamespaceDecl (clang_namespace_decl);
- break;
+ if (type_system && !type_system->DIEIsInNamespace (parent_namespace_decl, this, dwarf_cu, die))
+ continue;
+ }
+
+ if (type_system)
+ {
+ clang::NamespaceDecl *clang_namespace_decl = type_system->ResolveNamespaceDIE (this, dwarf_cu, die);
+ if (clang_namespace_decl)
+ {
+ namespace_decl.SetASTContext (GetClangASTContext().getASTContext());
+ namespace_decl.SetNamespaceDecl (clang_namespace_decl);
+ break;
+ }
}
}
else
@@ -4558,364 +3286,6 @@ SymbolFileDWARF::FindTypes(std::vector<d
}
-size_t
-SymbolFileDWARF::ParseChildParameters (const SymbolContext& sc,
- clang::DeclContext *containing_decl_ctx,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die,
- bool skip_artificial,
- bool &is_static,
- bool &is_variadic,
- std::vector<CompilerType>& function_param_types,
- std::vector<clang::ParmVarDecl*>& function_param_decls,
- unsigned &type_quals) // ,
- // ClangASTContext::TemplateParameterInfos &template_param_infos))
-{
- if (parent_die == NULL)
- return 0;
-
- const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-
- size_t arg_idx = 0;
- const DWARFDebugInfoEntry *die;
- for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
- {
- dw_tag_t tag = die->Tag();
- switch (tag)
- {
- case DW_TAG_formal_parameter:
- {
- DWARFDebugInfoEntry::Attributes attributes;
- const size_t num_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
- if (num_attributes > 0)
- {
- const char *name = NULL;
- Declaration decl;
- dw_offset_t param_type_die_offset = DW_INVALID_OFFSET;
- bool is_artificial = false;
- // one of None, Auto, Register, Extern, Static, PrivateExtern
-
- clang::StorageClass storage = clang::SC_None;
- uint32_t i;
- for (i=0; i<num_attributes; ++i)
- {
- const dw_attr_t attr = attributes.AttributeAtIndex(i);
- DWARFFormValue form_value;
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
- case DW_AT_type: param_type_die_offset = form_value.Reference(); break;
- case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
- case DW_AT_location:
- // if (form_value.BlockData())
- // {
- // const DWARFDataExtractor& debug_info_data = debug_info();
- // uint32_t block_length = form_value.Unsigned();
- // DWARFDataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length);
- // }
- // else
- // {
- // }
- // break;
- case DW_AT_const_value:
- case DW_AT_default_value:
- case DW_AT_description:
- case DW_AT_endianity:
- case DW_AT_is_optional:
- case DW_AT_segment:
- case DW_AT_variable_parameter:
- default:
- case DW_AT_abstract_origin:
- case DW_AT_sibling:
- break;
- }
- }
- }
-
- bool skip = false;
- if (skip_artificial)
- {
- if (is_artificial)
- {
- // In order to determine if a C++ member function is
- // "const" we have to look at the const-ness of "this"...
- // Ugly, but that
- if (arg_idx == 0)
- {
- if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()))
- {
- // Often times compilers omit the "this" name for the
- // specification DIEs, so we can't rely upon the name
- // being in the formal parameter DIE...
- if (name == NULL || ::strcmp(name, "this")==0)
- {
- Type *this_type = ResolveTypeUID (param_type_die_offset);
- if (this_type)
- {
- uint32_t encoding_mask = this_type->GetEncodingMask();
- if (encoding_mask & Type::eEncodingIsPointerUID)
- {
- is_static = false;
-
- if (encoding_mask & (1u << Type::eEncodingIsConstUID))
- type_quals |= clang::Qualifiers::Const;
- if (encoding_mask & (1u << Type::eEncodingIsVolatileUID))
- type_quals |= clang::Qualifiers::Volatile;
- }
- }
- }
- }
- }
- skip = true;
- }
- else
- {
-
- // HACK: Objective C formal parameters "self" and "_cmd"
- // are not marked as artificial in the DWARF...
- CompileUnit *comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
- if (comp_unit)
- {
- switch (comp_unit->GetLanguage())
- {
- case eLanguageTypeObjC:
- case eLanguageTypeObjC_plus_plus:
- if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0))
- skip = true;
- break;
- default:
- break;
- }
- }
- }
- }
-
- if (!skip)
- {
- Type *type = ResolveTypeUID(param_type_die_offset);
- if (type)
- {
- function_param_types.push_back (type->GetClangForwardType());
-
- clang::ParmVarDecl *param_var_decl = GetClangASTContext().CreateParameterDeclaration (name,
- type->GetClangForwardType(),
- storage);
- assert(param_var_decl);
- function_param_decls.push_back(param_var_decl);
-
- GetClangASTContext().SetMetadataAsUserID (param_var_decl, MakeUserID(die->GetOffset()));
- }
- }
- }
- arg_idx++;
- }
- break;
-
- case DW_TAG_unspecified_parameters:
- is_variadic = true;
- break;
-
- case DW_TAG_template_type_parameter:
- case DW_TAG_template_value_parameter:
- // The one caller of this was never using the template_param_infos,
- // and the local variable was taking up a large amount of stack space
- // in SymbolFileDWARF::ParseType() so this was removed. If we ever need
- // the template params back, we can add them back.
- // ParseTemplateDIE (dwarf_cu, die, template_param_infos);
- break;
-
- default:
- break;
- }
- }
- return arg_idx;
-}
-
-size_t
-SymbolFileDWARF::ParseChildEnumerators
-(
- const SymbolContext& sc,
- lldb_private::CompilerType &clang_type,
- bool is_signed,
- uint32_t enumerator_byte_size,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die
-)
-{
- if (parent_die == NULL)
- return 0;
-
- size_t enumerators_added = 0;
- const DWARFDebugInfoEntry *die;
- const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-
- for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
- {
- const dw_tag_t tag = die->Tag();
- if (tag == DW_TAG_enumerator)
- {
- DWARFDebugInfoEntry::Attributes attributes;
- const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
- if (num_child_attributes > 0)
- {
- const char *name = NULL;
- bool got_value = false;
- int64_t enum_value = 0;
- Declaration decl;
-
- uint32_t i;
- for (i=0; i<num_child_attributes; ++i)
- {
- const dw_attr_t attr = attributes.AttributeAtIndex(i);
- DWARFFormValue form_value;
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_const_value:
- got_value = true;
- if (is_signed)
- enum_value = form_value.Signed();
- else
- enum_value = form_value.Unsigned();
- break;
-
- case DW_AT_name:
- name = form_value.AsCString(&get_debug_str_data());
- break;
-
- case DW_AT_description:
- default:
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_sibling:
- break;
- }
- }
- }
-
- if (name && name[0] && got_value)
- {
- ClangASTContext* ast = clang_type.GetTypeSystem()->AsClangASTContext();
- if (ast)
- {
- ast->AddEnumerationValueToEnumerationType (clang_type.GetOpaqueQualType(),
- ast->GetEnumerationIntegerType(clang_type.GetOpaqueQualType()),
- decl,
- name,
- enum_value,
- enumerator_byte_size * 8);
- ++enumerators_added;
- }
- }
- }
- }
- }
- return enumerators_added;
-}
-
-void
-SymbolFileDWARF::ParseChildArrayInfo
-(
- const SymbolContext& sc,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die,
- int64_t& first_index,
- std::vector<uint64_t>& element_orders,
- uint32_t& byte_stride,
- uint32_t& bit_stride
-)
-{
- if (parent_die == NULL)
- return;
-
- const DWARFDebugInfoEntry *die;
- const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
- for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
- {
- const dw_tag_t tag = die->Tag();
- switch (tag)
- {
- case DW_TAG_subrange_type:
- {
- DWARFDebugInfoEntry::Attributes attributes;
- const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
- if (num_child_attributes > 0)
- {
- uint64_t num_elements = 0;
- uint64_t lower_bound = 0;
- uint64_t upper_bound = 0;
- bool upper_bound_valid = false;
- uint32_t i;
- for (i=0; i<num_child_attributes; ++i)
- {
- const dw_attr_t attr = attributes.AttributeAtIndex(i);
- DWARFFormValue form_value;
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_name:
- break;
-
- case DW_AT_count:
- num_elements = form_value.Unsigned();
- break;
-
- case DW_AT_bit_stride:
- bit_stride = form_value.Unsigned();
- break;
-
- case DW_AT_byte_stride:
- byte_stride = form_value.Unsigned();
- break;
-
- case DW_AT_lower_bound:
- lower_bound = form_value.Unsigned();
- break;
-
- case DW_AT_upper_bound:
- upper_bound_valid = true;
- upper_bound = form_value.Unsigned();
- break;
-
- default:
- case DW_AT_abstract_origin:
- case DW_AT_accessibility:
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_data_location:
- case DW_AT_declaration:
- case DW_AT_description:
- case DW_AT_sibling:
- case DW_AT_threads_scaled:
- case DW_AT_type:
- case DW_AT_visibility:
- break;
- }
- }
- }
-
- if (num_elements == 0)
- {
- if (upper_bound_valid && upper_bound >= lower_bound)
- num_elements = upper_bound - lower_bound + 1;
- }
-
- element_orders.push_back (num_elements);
- }
- }
- break;
- }
- }
-}
-
TypeSP
SymbolFileDWARF::GetTypeForDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry* die)
{
@@ -4941,234 +3311,78 @@ SymbolFileDWARF::GetTypeForDIE (DWARFCom
return type_sp;
}
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset)
+
+const DWARFDebugInfoEntry *
+SymbolFileDWARF::GetDeclContextDIEContainingDIE (const DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
{
- if (die_offset != DW_INVALID_OFFSET)
+ if (cu && die)
{
- DWARFCompileUnitSP cu_sp;
- const DWARFDebugInfoEntry* die = DebugInfo()->GetDIEPtr(die_offset, &cu_sp);
- return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
+ const DWARFDebugInfoEntry * const decl_die = die;
+
+ while (die != NULL)
+ {
+ // If this is the original DIE that we are searching for a declaration
+ // for, then don't look in the cache as we don't want our own decl
+ // context to be our decl context...
+ if (decl_die != die)
+ {
+ switch (die->Tag())
+ {
+ case DW_TAG_compile_unit:
+ case DW_TAG_namespace:
+ case DW_TAG_structure_type:
+ case DW_TAG_union_type:
+ case DW_TAG_class_type:
+ return die;
+
+ default:
+ break;
+ }
+ }
+
+ dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
+ if (die_offset != DW_INVALID_OFFSET)
+ {
+ DWARFCompileUnit *spec_cu = const_cast<DWARFCompileUnit *>(cu);
+ const DWARFDebugInfoEntry *spec_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &spec_cu);
+ const DWARFDebugInfoEntry *spec_die_decl_ctx_die = GetDeclContextDIEContainingDIE (spec_cu, spec_die);
+ if (spec_die_decl_ctx_die)
+ return spec_die_decl_ctx_die;
+ }
+
+ die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
+ if (die_offset != DW_INVALID_OFFSET)
+ {
+ DWARFCompileUnit *abs_cu = const_cast<DWARFCompileUnit *>(cu);
+ const DWARFDebugInfoEntry *abs_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &abs_cu);
+ const DWARFDebugInfoEntry *abs_die_decl_ctx_die = GetDeclContextDIEContainingDIE (abs_cu, abs_die);
+ if (abs_die_decl_ctx_die)
+ return abs_die_decl_ctx_die;
+ }
+
+ die = die->GetParent();
+ }
}
return NULL;
}
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextForDIEOffset (const SymbolContext &sc, dw_offset_t die_offset)
+
+Symbol *
+SymbolFileDWARF::GetObjCClassSymbol (const ConstString &objc_class_name)
{
- if (die_offset != DW_INVALID_OFFSET)
+ Symbol *objc_class_symbol = NULL;
+ if (m_obj_file)
{
- DWARFDebugInfo* debug_info = DebugInfo();
- if (debug_info)
+ Symtab *symtab = m_obj_file->GetSymtab ();
+ if (symtab)
{
- DWARFCompileUnitSP cu_sp;
- const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(die_offset, &cu_sp);
- if (die)
- return GetClangDeclContextForDIE (sc, cu_sp.get(), die);
+ objc_class_symbol = symtab->FindFirstSymbolWithNameAndType (objc_class_name,
+ eSymbolTypeObjCClass,
+ Symtab::eDebugNo,
+ Symtab::eVisibilityAny);
}
}
- return NULL;
-}
-
-clang::NamespaceDecl *
-SymbolFileDWARF::ResolveNamespaceDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry *die)
-{
- if (die && die->Tag() == DW_TAG_namespace)
- {
- // See if we already parsed this namespace DIE and associated it with a
- // uniqued namespace declaration
- clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die]);
- if (namespace_decl)
- return namespace_decl;
- else
- {
- const char *namespace_name = die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL);
- clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, NULL);
- namespace_decl = GetClangASTContext().GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx);
- Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
- if (log)
- {
- if (namespace_name)
- {
- GetObjectFile()->GetModule()->LogMessage (log,
- "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)",
- static_cast<void*>(GetClangASTContext().getASTContext()),
- MakeUserID(die->GetOffset()),
- namespace_name,
- static_cast<void*>(namespace_decl),
- static_cast<void*>(namespace_decl->getOriginalNamespace()));
- }
- else
- {
- GetObjectFile()->GetModule()->LogMessage (log,
- "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)",
- static_cast<void*>(GetClangASTContext().getASTContext()),
- MakeUserID(die->GetOffset()),
- static_cast<void*>(namespace_decl),
- static_cast<void*>(namespace_decl->getOriginalNamespace()));
- }
- }
-
- if (namespace_decl)
- LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die);
- return namespace_decl;
- }
- }
- return NULL;
-}
-
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextForDIE (const SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
-{
- clang::DeclContext *clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
- if (clang_decl_ctx)
- return clang_decl_ctx;
- // If this DIE has a specification, or an abstract origin, then trace to those.
-
- dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
- if (die_offset != DW_INVALID_OFFSET)
- return GetClangDeclContextForDIEOffset (sc, die_offset);
-
- die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
- if (die_offset != DW_INVALID_OFFSET)
- return GetClangDeclContextForDIEOffset (sc, die_offset);
-
- Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
- if (log)
- GetObjectFile()->GetModule()->LogMessage(log, "SymbolFileDWARF::GetClangDeclContextForDIE (die = 0x%8.8x) %s '%s'", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), die->GetName(this, cu));
- // This is the DIE we want. Parse it, then query our map.
- bool assert_not_being_parsed = true;
- ResolveTypeUID (cu, die, assert_not_being_parsed);
-
- clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
-
- return clang_decl_ctx;
-}
-
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die, const DWARFDebugInfoEntry **decl_ctx_die_copy)
-{
- if (m_clang_tu_decl == NULL)
- m_clang_tu_decl = GetClangASTContext().getASTContext()->getTranslationUnitDecl();
-
- const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
-
- if (decl_ctx_die_copy)
- *decl_ctx_die_copy = decl_ctx_die;
-
- if (decl_ctx_die)
- {
-
- DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find (decl_ctx_die);
- if (pos != m_die_to_decl_ctx.end())
- return pos->second;
-
- switch (decl_ctx_die->Tag())
- {
- case DW_TAG_compile_unit:
- return m_clang_tu_decl;
-
- case DW_TAG_namespace:
- return ResolveNamespaceDIE (cu, decl_ctx_die);
- break;
-
- case DW_TAG_structure_type:
- case DW_TAG_union_type:
- case DW_TAG_class_type:
- {
- Type* type = ResolveType (cu, decl_ctx_die);
- if (type)
- {
- clang::DeclContext *decl_ctx = GetClangASTContext().GetDeclContextForType(type->GetClangForwardType());
- if (decl_ctx)
- {
- LinkDeclContextToDIE (decl_ctx, decl_ctx_die);
- if (decl_ctx)
- return decl_ctx;
- }
- }
- }
- break;
-
- default:
- break;
- }
- }
- return m_clang_tu_decl;
-}
-
-
-const DWARFDebugInfoEntry *
-SymbolFileDWARF::GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
-{
- if (cu && die)
- {
- const DWARFDebugInfoEntry * const decl_die = die;
-
- while (die != NULL)
- {
- // If this is the original DIE that we are searching for a declaration
- // for, then don't look in the cache as we don't want our own decl
- // context to be our decl context...
- if (decl_die != die)
- {
- switch (die->Tag())
- {
- case DW_TAG_compile_unit:
- case DW_TAG_namespace:
- case DW_TAG_structure_type:
- case DW_TAG_union_type:
- case DW_TAG_class_type:
- return die;
-
- default:
- break;
- }
- }
-
- dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
- if (die_offset != DW_INVALID_OFFSET)
- {
- DWARFCompileUnit *spec_cu = cu;
- const DWARFDebugInfoEntry *spec_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &spec_cu);
- const DWARFDebugInfoEntry *spec_die_decl_ctx_die = GetDeclContextDIEContainingDIE (spec_cu, spec_die);
- if (spec_die_decl_ctx_die)
- return spec_die_decl_ctx_die;
- }
-
- die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
- if (die_offset != DW_INVALID_OFFSET)
- {
- DWARFCompileUnit *abs_cu = cu;
- const DWARFDebugInfoEntry *abs_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &abs_cu);
- const DWARFDebugInfoEntry *abs_die_decl_ctx_die = GetDeclContextDIEContainingDIE (abs_cu, abs_die);
- if (abs_die_decl_ctx_die)
- return abs_die_decl_ctx_die;
- }
-
- die = die->GetParent();
- }
- }
- return NULL;
-}
-
-
-Symbol *
-SymbolFileDWARF::GetObjCClassSymbol (const ConstString &objc_class_name)
-{
- Symbol *objc_class_symbol = NULL;
- if (m_obj_file)
- {
- Symtab *symtab = m_obj_file->GetSymtab ();
- if (symtab)
- {
- objc_class_symbol = symtab->FindFirstSymbolWithNameAndType (objc_class_name,
- eSymbolTypeObjCClass,
- Symtab::eDebugNo,
- Symtab::eVisibilityAny);
- }
- }
- return objc_class_symbol;
+ return objc_class_symbol;
}
// Some compilers don't emit the DW_AT_APPLE_objc_complete_type attribute. If they don't
@@ -5444,1877 +3658,148 @@ SymbolFileDWARF::FindDefinitionTypeForDW
const char *qualified_name = dwarf_decl_ctx.GetQualifiedName();
const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name);
if (log)
- GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()");
- m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), tag, qualified_name_hash, die_offsets);
- }
- else if (has_tag)
- {
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()");
- m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), tag, die_offsets);
- }
- else
- {
- m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets);
- }
- }
- }
- else
- {
- if (!m_indexed)
- Index ();
-
- m_type_index.Find (type_name, die_offsets);
- }
-
- const size_t num_matches = die_offsets.size();
-
-
- DWARFCompileUnit* type_cu = NULL;
- const DWARFDebugInfoEntry* type_die = NULL;
- if (num_matches)
- {
- DWARFDebugInfo* debug_info = DebugInfo();
- for (size_t i=0; i<num_matches; ++i)
- {
- const dw_offset_t die_offset = die_offsets[i];
- type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
-
- if (type_die)
- {
- bool try_resolving_type = false;
-
- // Don't try and resolve the DIE we are looking for with the DIE itself!
- const dw_tag_t type_tag = type_die->Tag();
- // Make sure the tags match
- if (type_tag == tag)
- {
- // The tags match, lets try resolving this type
- try_resolving_type = true;
- }
- else
- {
- // The tags don't match, but we need to watch our for a
- // forward declaration for a struct and ("struct foo")
- // ends up being a class ("class foo { ... };") or
- // vice versa.
- switch (type_tag)
- {
- case DW_TAG_class_type:
- // We had a "class foo", see if we ended up with a "struct foo { ... };"
- try_resolving_type = (tag == DW_TAG_structure_type);
- break;
- case DW_TAG_structure_type:
- // We had a "struct foo", see if we ended up with a "class foo { ... };"
- try_resolving_type = (tag == DW_TAG_class_type);
- break;
- default:
- // Tags don't match, don't event try to resolve
- // using this type whose name matches....
- break;
- }
- }
-
- if (try_resolving_type)
- {
- DWARFDeclContext type_dwarf_decl_ctx;
- type_die->GetDWARFDeclContext (this, type_cu, type_dwarf_decl_ctx);
-
- if (log)
- {
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') trying die=0x%8.8x (%s)",
- DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
- dwarf_decl_ctx.GetQualifiedName(),
- type_die->GetOffset(),
- type_dwarf_decl_ctx.GetQualifiedName());
- }
-
- // Make sure the decl contexts match all the way up
- if (dwarf_decl_ctx == type_dwarf_decl_ctx)
- {
- Type *resolved_type = ResolveType (type_cu, type_die, false);
- if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
- {
- type_sp = resolved_type->shared_from_this();
- break;
- }
- }
- }
- else
- {
- if (log)
- {
- std::string qualified_name;
- type_die->GetQualifiedName(this, type_cu, qualified_name);
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') ignoring die=0x%8.8x (%s)",
- DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
- dwarf_decl_ctx.GetQualifiedName(),
- type_die->GetOffset(),
- qualified_name.c_str());
- }
- }
- }
- else
- {
- if (m_using_apple_tables)
- {
- GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
- die_offset, type_name.GetCString());
- }
- }
-
- }
- }
- }
- }
- return type_sp;
-}
-
-bool
-SymbolFileDWARF::CopyUniqueClassMethodTypes (SymbolFileDWARF *src_symfile,
- Type *class_type,
- DWARFCompileUnit* src_cu,
- const DWARFDebugInfoEntry *src_class_die,
- DWARFCompileUnit* dst_cu,
- const DWARFDebugInfoEntry *dst_class_die,
- DWARFDIECollection &failures)
-{
- if (!class_type || !src_cu || !src_class_die || !dst_cu || !dst_class_die)
- return false;
- if (src_class_die->Tag() != dst_class_die->Tag())
- return false;
-
- // We need to complete the class type so we can get all of the method types
- // parsed so we can then unique those types to their equivalent counterparts
- // in "dst_cu" and "dst_class_die"
- class_type->GetClangFullType();
-
- const DWARFDebugInfoEntry *src_die;
- const DWARFDebugInfoEntry *dst_die;
- UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die;
- UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die;
- UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die_artificial;
- UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die_artificial;
- for (src_die = src_class_die->GetFirstChild(); src_die != NULL; src_die = src_die->GetSibling())
- {
- if (src_die->Tag() == DW_TAG_subprogram)
- {
- // Make sure this is a declaration and not a concrete instance by looking
- // for DW_AT_declaration set to 1. Sometimes concrete function instances
- // are placed inside the class definitions and shouldn't be included in
- // the list of things are are tracking here.
- if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_declaration, 0) == 1)
- {
- const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
- if (src_name)
- {
- ConstString src_const_name(src_name);
- if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_artificial, 0))
- src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die);
- else
- src_name_to_die.Append(src_const_name.GetCString(), src_die);
- }
- }
- }
- }
- for (dst_die = dst_class_die->GetFirstChild(); dst_die != NULL; dst_die = dst_die->GetSibling())
- {
- if (dst_die->Tag() == DW_TAG_subprogram)
- {
- // Make sure this is a declaration and not a concrete instance by looking
- // for DW_AT_declaration set to 1. Sometimes concrete function instances
- // are placed inside the class definitions and shouldn't be included in
- // the list of things are are tracking here.
- if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_declaration, 0) == 1)
- {
- const char *dst_name = dst_die->GetMangledName (this, dst_cu);
- if (dst_name)
- {
- ConstString dst_const_name(dst_name);
- if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_artificial, 0))
- dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die);
- else
- dst_name_to_die.Append(dst_const_name.GetCString(), dst_die);
- }
- }
- }
- }
- const uint32_t src_size = src_name_to_die.GetSize ();
- const uint32_t dst_size = dst_name_to_die.GetSize ();
- Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_TYPE_COMPLETION));
-
- // Is everything kosher so we can go through the members at top speed?
- bool fast_path = true;
-
- if (src_size != dst_size)
- {
- if (src_size != 0 && dst_size != 0)
- {
- if (log)
- log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, but they didn't have the same size (src=%d, dst=%d)",
- src_class_die->GetOffset(),
- dst_class_die->GetOffset(),
- src_size,
- dst_size);
- }
-
- fast_path = false;
- }
-
- uint32_t idx;
-
- if (fast_path)
- {
- for (idx = 0; idx < src_size; ++idx)
- {
- src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
- dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
-
- if (src_die->Tag() != dst_die->Tag())
- {
- if (log)
- log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)",
- src_class_die->GetOffset(),
- dst_class_die->GetOffset(),
- src_die->GetOffset(),
- DW_TAG_value_to_name(src_die->Tag()),
- dst_die->GetOffset(),
- DW_TAG_value_to_name(src_die->Tag()));
- fast_path = false;
- }
-
- const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
- const char *dst_name = dst_die->GetMangledName (this, dst_cu);
-
- // Make sure the names match
- if (src_name == dst_name || (strcmp (src_name, dst_name) == 0))
- continue;
-
- if (log)
- log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)",
- src_class_die->GetOffset(),
- dst_class_die->GetOffset(),
- src_die->GetOffset(),
- src_name,
- dst_die->GetOffset(),
- dst_name);
-
- fast_path = false;
- }
- }
-
- // Now do the work of linking the DeclContexts and Types.
- if (fast_path)
- {
- // We can do this quickly. Just run across the tables index-for-index since
- // we know each node has matching names and tags.
- for (idx = 0; idx < src_size; ++idx)
- {
- src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
- dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
-
- clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
- if (src_decl_ctx)
- {
- if (log)
- log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
- static_cast<void*>(src_decl_ctx),
- src_die->GetOffset(), dst_die->GetOffset());
- LinkDeclContextToDIE (src_decl_ctx, dst_die);
- }
- else
- {
- if (log)
- log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found",
- src_die->GetOffset(), dst_die->GetOffset());
- }
-
- Type *src_child_type = m_die_to_type[src_die];
- if (src_child_type)
- {
- if (log)
- log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
- static_cast<void*>(src_child_type),
- src_child_type->GetID(),
- src_die->GetOffset(), dst_die->GetOffset());
- m_die_to_type[dst_die] = src_child_type;
- }
- else
- {
- if (log)
- log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
- }
- }
- }
- else
- {
- // We must do this slowly. For each member of the destination, look
- // up a member in the source with the same name, check its tag, and
- // unique them if everything matches up. Report failures.
-
- if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty())
- {
- src_name_to_die.Sort();
-
- for (idx = 0; idx < dst_size; ++idx)
- {
- const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx);
- dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx);
- src_die = src_name_to_die.Find(dst_name, NULL);
-
- if (src_die && (src_die->Tag() == dst_die->Tag()))
- {
- clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
- if (src_decl_ctx)
- {
- if (log)
- log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
- static_cast<void*>(src_decl_ctx),
- src_die->GetOffset(),
- dst_die->GetOffset());
- LinkDeclContextToDIE (src_decl_ctx, dst_die);
- }
- else
- {
- if (log)
- log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
- }
-
- Type *src_child_type = m_die_to_type[src_die];
- if (src_child_type)
- {
- if (log)
- log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
- static_cast<void*>(src_child_type),
- src_child_type->GetID(),
- src_die->GetOffset(),
- dst_die->GetOffset());
- m_die_to_type[dst_die] = src_child_type;
- }
- else
- {
- if (log)
- log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
- }
- }
- else
- {
- if (log)
- log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die->GetOffset());
-
- failures.Append(dst_die);
- }
- }
- }
- }
-
- const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize ();
- const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize ();
-
- UniqueCStringMap<const DWARFDebugInfoEntry *> name_to_die_artificial_not_in_src;
-
- if (src_size_artificial && dst_size_artificial)
- {
- dst_name_to_die_artificial.Sort();
-
- for (idx = 0; idx < src_size_artificial; ++idx)
- {
- const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx);
- src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
- dst_die = dst_name_to_die_artificial.Find(src_name_artificial, NULL);
-
- if (dst_die)
- {
- // Both classes have the artificial types, link them
- clang::DeclContext *src_decl_ctx = m_die_to_decl_ctx[src_die];
- if (src_decl_ctx)
- {
- if (log)
- log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
- static_cast<void*>(src_decl_ctx),
- src_die->GetOffset(), dst_die->GetOffset());
- LinkDeclContextToDIE (src_decl_ctx, dst_die);
- }
- else
- {
- if (log)
- log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
- }
-
- Type *src_child_type = m_die_to_type[src_die];
- if (src_child_type)
- {
- if (log)
- log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
- static_cast<void*>(src_child_type),
- src_child_type->GetID(),
- src_die->GetOffset(), dst_die->GetOffset());
- m_die_to_type[dst_die] = src_child_type;
- }
- else
- {
- if (log)
- log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
- }
- }
- }
- }
-
- if (dst_size_artificial)
- {
- for (idx = 0; idx < dst_size_artificial; ++idx)
- {
- const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx);
- dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
- if (log)
- log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die->GetOffset(), dst_name_artificial);
-
- failures.Append(dst_die);
- }
- }
-
- return (failures.Size() != 0);
-}
-
-TypeSP
-SymbolFileDWARF::ParseType (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new_ptr)
-{
- TypeSP type_sp;
-
- if (type_is_new_ptr)
- *type_is_new_ptr = false;
-
-#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
- static DIEStack g_die_stack;
- DIEStack::ScopedPopper scoped_die_logger(g_die_stack);
-#endif
-
- AccessType accessibility = eAccessNone;
- if (die != NULL)
- {
- Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
- if (log)
- {
- const DWARFDebugInfoEntry *context_die;
- clang::DeclContext *context = GetClangDeclContextContainingDIE (dwarf_cu, die, &context_die);
-
- GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')",
- die->GetOffset(),
- static_cast<void*>(context),
- context_die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- die->GetName(this, dwarf_cu));
-
-#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
- scoped_die_logger.Push (dwarf_cu, die);
- g_die_stack.LogDIEs(log, this);
-#endif
- }
-//
-// Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
-// if (log && dwarf_cu)
-// {
-// StreamString s;
-// die->DumpLocation (this, dwarf_cu, s);
-// GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData());
-//
-// }
-
- Type *type_ptr = m_die_to_type.lookup (die);
- TypeList* type_list = GetTypeList();
- if (type_ptr == NULL)
- {
- ClangASTContext &ast = GetClangASTContext();
- if (type_is_new_ptr)
- *type_is_new_ptr = true;
-
- const dw_tag_t tag = die->Tag();
-
- bool is_forward_declaration = false;
- DWARFDebugInfoEntry::Attributes attributes;
- const char *type_name_cstr = NULL;
- ConstString type_name_const_str;
- Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
- uint64_t byte_size = 0;
- Declaration decl;
-
- Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
- CompilerType clang_type;
- DWARFFormValue form_value;
-
- dw_attr_t attr;
-
- switch (tag)
- {
- case DW_TAG_base_type:
- case DW_TAG_pointer_type:
- case DW_TAG_reference_type:
- case DW_TAG_rvalue_reference_type:
- case DW_TAG_typedef:
- case DW_TAG_const_type:
- case DW_TAG_restrict_type:
- case DW_TAG_volatile_type:
- case DW_TAG_unspecified_type:
- {
- // Set a bit that lets us know that we are currently parsing this
- m_die_to_type[die] = DIE_IS_BEING_PARSED;
-
- const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
- uint32_t encoding = 0;
- 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(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_name:
-
- type_name_cstr = form_value.AsCString(&get_debug_str_data());
- // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't
- // include the "&"...
- if (tag == DW_TAG_reference_type)
- {
- if (strchr (type_name_cstr, '&') == NULL)
- type_name_cstr = NULL;
- }
- 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: encoding = form_value.Unsigned(); break;
- case DW_AT_type: encoding_uid = form_value.Reference(); break;
- default:
- case DW_AT_sibling:
- break;
- }
- }
- }
- }
-
- DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid);
-
- switch (tag)
- {
- default:
- break;
-
- case DW_TAG_unspecified_type:
- if (strcmp(type_name_cstr, "nullptr_t") == 0 ||
- strcmp(type_name_cstr, "decltype(nullptr)") == 0 )
- {
- resolve_state = Type::eResolveStateFull;
- clang_type = ast.GetBasicType(eBasicTypeNullPtr);
- break;
- }
- // Fall through to base type below in case we can handle the type there...
-
- case DW_TAG_base_type:
- resolve_state = Type::eResolveStateFull;
- clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr,
- encoding,
- byte_size * 8);
- break;
-
- case DW_TAG_pointer_type: encoding_data_type = Type::eEncodingIsPointerUID; break;
- case DW_TAG_reference_type: encoding_data_type = Type::eEncodingIsLValueReferenceUID; break;
- case DW_TAG_rvalue_reference_type: encoding_data_type = Type::eEncodingIsRValueReferenceUID; break;
- case DW_TAG_typedef: encoding_data_type = Type::eEncodingIsTypedefUID; break;
- case DW_TAG_const_type: encoding_data_type = Type::eEncodingIsConstUID; break;
- case DW_TAG_restrict_type: encoding_data_type = Type::eEncodingIsRestrictUID; break;
- case DW_TAG_volatile_type: encoding_data_type = Type::eEncodingIsVolatileUID; break;
- }
-
- if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL)
- {
- bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus);
-
- if (translation_unit_is_objc)
- {
- if (type_name_cstr != NULL)
- {
- static ConstString g_objc_type_name_id("id");
- static ConstString g_objc_type_name_Class("Class");
- static ConstString g_objc_type_name_selector("SEL");
-
- if (type_name_const_str == g_objc_type_name_id)
- {
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.",
- die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- die->GetName(this, dwarf_cu));
- clang_type = ast.GetBasicType(eBasicTypeObjCID);
- encoding_data_type = Type::eEncodingIsUID;
- encoding_uid = LLDB_INVALID_UID;
- resolve_state = Type::eResolveStateFull;
-
- }
- else if (type_name_const_str == g_objc_type_name_Class)
- {
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.",
- die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- die->GetName(this, dwarf_cu));
- clang_type = ast.GetBasicType(eBasicTypeObjCClass);
- encoding_data_type = Type::eEncodingIsUID;
- encoding_uid = LLDB_INVALID_UID;
- resolve_state = Type::eResolveStateFull;
- }
- else if (type_name_const_str == g_objc_type_name_selector)
- {
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.",
- die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- die->GetName(this, dwarf_cu));
- clang_type = ast.GetBasicType(eBasicTypeObjCSel);
- encoding_data_type = Type::eEncodingIsUID;
- encoding_uid = LLDB_INVALID_UID;
- resolve_state = Type::eResolveStateFull;
- }
- }
- else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID)
- {
- // Clang sometimes erroneously emits id as objc_object*. In that case we fix up the type to "id".
-
- DWARFDebugInfoEntry* encoding_die = dwarf_cu->GetDIEPtr(encoding_uid);
-
- if (encoding_die && encoding_die->Tag() == DW_TAG_structure_type)
- {
- if (const char *struct_name = encoding_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL))
- {
- if (!strcmp(struct_name, "objc_object"))
- {
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.",
- die->GetOffset(),
- DW_TAG_value_to_name(die->Tag()),
- die->GetName(this, dwarf_cu));
- clang_type = ast.GetBasicType(eBasicTypeObjCID);
- encoding_data_type = Type::eEncodingIsUID;
- encoding_uid = LLDB_INVALID_UID;
- resolve_state = Type::eResolveStateFull;
- }
- }
- }
- }
- }
- }
-
- type_sp.reset( new Type (MakeUserID(die->GetOffset()),
- this,
- type_name_const_str,
- byte_size,
- NULL,
- encoding_uid,
- encoding_data_type,
- &decl,
- clang_type,
- resolve_state));
-
- m_die_to_type[die] = type_sp.get();
-
-// Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false);
-// if (encoding_type != NULL)
-// {
-// if (encoding_type != DIE_IS_BEING_PARSED)
-// type_sp->SetEncodingType(encoding_type);
-// else
-// m_indirect_fixups.push_back(type_sp.get());
-// }
- }
- break;
-
- case DW_TAG_structure_type:
- case DW_TAG_union_type:
- case DW_TAG_class_type:
- {
- // Set a bit that lets us know that we are currently parsing this
- m_die_to_type[die] = DIE_IS_BEING_PARSED;
- bool byte_size_valid = false;
-
- LanguageType class_language = eLanguageTypeUnknown;
- bool is_complete_objc_class = false;
- //bool struct_is_class = false;
- const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
- if (num_attributes > 0)
- {
- uint32_t i;
- for (i=0; i<num_attributes; ++i)
- {
- attr = attributes.AttributeAtIndex(i);
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_decl_file:
- if (dwarf_cu->DW_AT_decl_file_attributes_are_invalid())
- {
- // llvm-gcc outputs invalid DW_AT_decl_file attributes that always
- // point to the compile unit file, so we clear this invalid value
- // so that we can still unique types efficiently.
- decl.SetFile(FileSpec ("<invalid>", false));
- }
- else
- decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned()));
- break;
-
- case DW_AT_decl_line:
- decl.SetLine(form_value.Unsigned());
- break;
-
- case DW_AT_decl_column:
- decl.SetColumn(form_value.Unsigned());
- break;
-
- case DW_AT_name:
- type_name_cstr = form_value.AsCString(&get_debug_str_data());
- 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_accessibility:
- accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
- break;
-
- case DW_AT_declaration:
- is_forward_declaration = form_value.Boolean();
- break;
-
- case DW_AT_APPLE_runtime_class:
- class_language = (LanguageType)form_value.Signed();
- break;
-
- case DW_AT_APPLE_objc_complete_type:
- is_complete_objc_class = form_value.Signed();
- break;
-
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_data_location:
- case DW_AT_description:
- case DW_AT_start_scope:
- case DW_AT_visibility:
- default:
- case DW_AT_sibling:
- break;
- }
- }
- }
- }
-
- // 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 &&
- GetUniqueDWARFASTTypeMap().Find (type_name_const_str,
- this,
- dwarf_cu,
- 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)
- {
- m_die_to_type[die] = type_sp.get();
- return type_sp;
- }
- }
-
- DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
- int tag_decl_kind = -1;
- AccessType default_accessibility = eAccessNone;
- if (tag == DW_TAG_structure_type)
- {
- tag_decl_kind = clang::TTK_Struct;
- default_accessibility = eAccessPublic;
- }
- else if (tag == DW_TAG_union_type)
- {
- tag_decl_kind = clang::TTK_Union;
- default_accessibility = eAccessPublic;
- }
- else if (tag == DW_TAG_class_type)
- {
- tag_decl_kind = clang::TTK_Class;
- default_accessibility = eAccessPrivate;
- }
-
- if (byte_size_valid && byte_size == 0 && type_name_cstr &&
- die->HasChildren() == false &&
- sc.comp_unit->GetLanguage() == eLanguageTypeObjC)
- {
- // Work around an issue with clang at the moment where
- // forward declarations for objective C classes are emitted
- // as:
- // DW_TAG_structure_type [2]
- // DW_AT_name( "ForwardObjcClass" )
- // DW_AT_byte_size( 0x00 )
- // DW_AT_decl_file( "..." )
- // DW_AT_decl_line( 1 )
- //
- // Note that there is no DW_AT_declaration and there are
- // no children, and the byte size is zero.
- is_forward_declaration = true;
- }
-
- if (class_language == eLanguageTypeObjC ||
- class_language == eLanguageTypeObjC_plus_plus)
- {
- if (!is_complete_objc_class && Supports_DW_AT_APPLE_objc_complete_type(dwarf_cu))
- {
- // We have a valid eSymbolTypeObjCClass class symbol whose
- // name matches the current objective C class that we
- // are trying to find and this DIE isn't the complete
- // definition (we checked is_complete_objc_class above and
- // know it is false), so the real definition is in here somewhere
- type_sp = FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
-
- if (!type_sp && GetDebugMapSymfile ())
- {
- // We weren't able to find a full declaration in
- // this DWARF, see if we have a declaration anywhere
- // else...
- type_sp = m_debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
- }
-
- if (type_sp)
- {
- if (log)
- {
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64,
- static_cast<void*>(this),
- die->GetOffset(),
- DW_TAG_value_to_name(tag),
- type_name_cstr,
- type_sp->GetID());
- }
-
- // We found a real definition for this type elsewhere
- // so lets use it and cache the fact that we found
- // a complete type for this die
- m_die_to_type[die] = type_sp.get();
- return type_sp;
- }
- }
- }
-
-
- if (is_forward_declaration)
- {
- // We have a forward declaration to a type and we need
- // to try and find a full declaration. We look in the
- // current type index just in case we have a forward
- // declaration followed by an actual declarations in the
- // DWARF. If this fails, we need to look elsewhere...
- if (log)
- {
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type",
- static_cast<void*>(this),
- die->GetOffset(),
- DW_TAG_value_to_name(tag),
- type_name_cstr);
- }
-
- DWARFDeclContext die_decl_ctx;
- die->GetDWARFDeclContext(this, dwarf_cu, die_decl_ctx);
-
- //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str);
- type_sp = FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
-
- if (!type_sp && GetDebugMapSymfile ())
- {
- // We weren't able to find a full declaration in
- // this DWARF, see if we have a declaration anywhere
- // else...
- type_sp = m_debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
- }
-
- if (type_sp)
- {
- if (log)
- {
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64,
- static_cast<void*>(this),
- die->GetOffset(),
- DW_TAG_value_to_name(tag),
- type_name_cstr,
- type_sp->GetID());
- }
-
- // We found a real definition for this type elsewhere
- // so lets use it and cache the fact that we found
- // a complete type for this die
- m_die_to_type[die] = type_sp.get();
- return type_sp;
- }
- }
- assert (tag_decl_kind != -1);
- bool clang_type_was_created = false;
- clang_type.SetClangType(&ast, m_forward_decl_die_to_clang_type.lookup (die));
- if (!clang_type)
- {
- const DWARFDebugInfoEntry *decl_ctx_die;
-
- clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
- if (accessibility == eAccessNone && decl_ctx)
- {
- // Check the decl context that contains this class/struct/union.
- // If it is a class we must give it an accessibility.
- const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind();
- if (DeclKindIsCXXClass (containing_decl_kind))
- accessibility = default_accessibility;
- }
-
- ClangASTMetadata metadata;
- metadata.SetUserID(MakeUserID(die->GetOffset()));
- metadata.SetIsDynamicCXXType(ClassOrStructIsVirtual (dwarf_cu, die));
-
- if (type_name_cstr && strchr (type_name_cstr, '<'))
- {
- ClangASTContext::TemplateParameterInfos template_param_infos;
- if (ParseTemplateParameterInfos (dwarf_cu, die, template_param_infos))
- {
- clang::ClassTemplateDecl *class_template_decl = ParseClassTemplateDecl (decl_ctx,
- accessibility,
- type_name_cstr,
- tag_decl_kind,
- template_param_infos);
-
- clang::ClassTemplateSpecializationDecl *class_specialization_decl = ast.CreateClassTemplateSpecializationDecl (decl_ctx,
- class_template_decl,
- tag_decl_kind,
- template_param_infos);
- clang_type = ast.CreateClassTemplateSpecializationType (class_specialization_decl);
- clang_type_was_created = true;
-
- GetClangASTContext().SetMetadata (class_template_decl, metadata);
- GetClangASTContext().SetMetadata (class_specialization_decl, metadata);
- }
- }
-
- if (!clang_type_was_created)
- {
- clang_type_was_created = true;
- clang_type = ast.CreateRecordType (decl_ctx,
- accessibility,
- type_name_cstr,
- tag_decl_kind,
- class_language,
- &metadata);
- }
- }
-
- // Store a forward declaration to this class type in case any
- // parameters in any class methods need it for the clang
- // types for function prototypes.
- LinkDeclContextToDIE(ast.GetDeclContextForType(clang_type), die);
- type_sp.reset (new Type (MakeUserID(die->GetOffset()),
- this,
- type_name_const_str,
- byte_size,
- NULL,
- LLDB_INVALID_UID,
- Type::eEncodingIsUID,
- &decl,
- clang_type,
- Type::eResolveStateForward));
-
- type_sp->SetIsCompleteObjCClass(is_complete_objc_class);
-
-
- // 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_symfile = this;
- unique_ast_entry_ap->m_cu = dwarf_cu;
- unique_ast_entry_ap->m_die = die;
- unique_ast_entry_ap->m_declaration = decl;
- unique_ast_entry_ap->m_byte_size = byte_size;
- GetUniqueDWARFASTTypeMap().Insert (type_name_const_str,
- *unique_ast_entry_ap);
-
- if (is_forward_declaration && die->HasChildren())
- {
- // Check to see if the DIE actually has a definition, some version of GCC will
- // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram,
- // members, or inheritance, so we can't trust it
- const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
- while (child_die)
- {
- switch (child_die->Tag())
- {
- case DW_TAG_inheritance:
- case DW_TAG_subprogram:
- case DW_TAG_member:
- case DW_TAG_APPLE_property:
- case DW_TAG_class_type:
- case DW_TAG_structure_type:
- case DW_TAG_enumeration_type:
- case DW_TAG_typedef:
- case DW_TAG_union_type:
- child_die = NULL;
- is_forward_declaration = false;
- break;
- default:
- child_die = child_die->GetSibling();
- break;
- }
- }
- }
-
- 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
- ClangASTContext::StartTagDeclarationDefinition (clang_type);
- ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
-
- if (tag == DW_TAG_structure_type) // this only applies in C
- {
- clang::RecordDecl *record_decl = ClangASTContext::GetAsRecordDecl(clang_type);
-
- if (record_decl)
- m_record_decl_to_layout_map.insert(std::make_pair(record_decl, LayoutInfo()));
- }
- }
- else if (clang_type_was_created)
- {
- // Start the definition if the class is not objective C since
- // the underlying decls respond to isCompleteDefinition(). Objective
- // C decls don't respond to isCompleteDefinition() so we can't
- // start the declaration definition right away. For C++ class/union/structs
- // we want to start the definition in case the class is needed as the
- // declaration context for a contained class or type without the need
- // to complete that type..
-
- if (class_language != eLanguageTypeObjC &&
- class_language != eLanguageTypeObjC_plus_plus)
- ClangASTContext::StartTagDeclarationDefinition (clang_type);
-
- // 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::ResolveClangOpaqueTypeDefinition(Type *)"
- // When the definition needs to be defined.
- m_forward_decl_die_to_clang_type[die] = clang_type.GetOpaqueQualType();
- m_forward_decl_clang_type_to_die[ClangASTContext::RemoveFastQualifiers(clang_type).GetOpaqueQualType()] = die;
- ast.SetHasExternalStorage (clang_type.GetOpaqueQualType(), true);
- }
- }
-
- }
- break;
-
- case DW_TAG_enumeration_type:
- {
- // Set a bit that lets us know that we are currently parsing this
- m_die_to_type[die] = DIE_IS_BEING_PARSED;
-
- lldb::user_id_t encoding_uid = DW_INVALID_OFFSET;
-
- const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
- if (num_attributes > 0)
- {
- uint32_t i;
-
- for (i=0; i<num_attributes; ++i)
- {
- attr = attributes.AttributeAtIndex(i);
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_name:
- type_name_cstr = form_value.AsCString(&get_debug_str_data());
- type_name_const_str.SetCString(type_name_cstr);
- break;
- case DW_AT_type: encoding_uid = form_value.Reference(); break;
- case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
- case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
- case DW_AT_declaration: break; //is_forward_declaration = form_value.Boolean(); break;
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_bit_stride:
- case DW_AT_byte_stride:
- case DW_AT_data_location:
- case DW_AT_description:
- case DW_AT_start_scope:
- case DW_AT_visibility:
- case DW_AT_specification:
- case DW_AT_abstract_origin:
- case DW_AT_sibling:
- break;
- }
- }
- }
-
- DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
- CompilerType enumerator_clang_type;
- clang_type.SetClangType (&ast, m_forward_decl_die_to_clang_type.lookup (die));
- if (!clang_type)
- {
- if (encoding_uid != DW_INVALID_OFFSET)
- {
- Type *enumerator_type = ResolveTypeUID(encoding_uid);
- if (enumerator_type)
- enumerator_clang_type = enumerator_type->GetClangFullType();
- }
-
- if (!enumerator_clang_type)
- enumerator_clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (NULL,
- DW_ATE_signed,
- byte_size * 8);
-
- clang_type = ast.CreateEnumerationType (type_name_cstr,
- GetClangDeclContextContainingDIE (dwarf_cu, die, NULL),
- decl,
- enumerator_clang_type);
- }
- else
- {
- enumerator_clang_type = ast.GetEnumerationIntegerType (clang_type.GetOpaqueQualType());
- }
-
- LinkDeclContextToDIE(ClangASTContext::GetDeclContextForType(clang_type), die);
-
- type_sp.reset( new Type (MakeUserID(die->GetOffset()),
- this,
- type_name_const_str,
- byte_size,
- NULL,
- encoding_uid,
- Type::eEncodingIsUID,
- &decl,
- clang_type,
- Type::eResolveStateForward));
-
- ClangASTContext::StartTagDeclarationDefinition (clang_type);
- if (die->HasChildren())
- {
- SymbolContext cu_sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
- bool is_signed = false;
- enumerator_clang_type.IsIntegerType(is_signed);
- ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), dwarf_cu, die);
- }
- ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
- }
- }
- break;
-
- case DW_TAG_inlined_subroutine:
- case DW_TAG_subprogram:
- case DW_TAG_subroutine_type:
- {
- // Set a bit that lets us know that we are currently parsing this
- m_die_to_type[die] = DIE_IS_BEING_PARSED;
-
- //const char *mangled = NULL;
- dw_offset_t type_die_offset = DW_INVALID_OFFSET;
- bool is_variadic = false;
- bool is_inline = false;
- bool is_static = false;
- bool is_virtual = false;
- bool is_explicit = false;
- bool is_artificial = false;
- dw_offset_t specification_die_offset = DW_INVALID_OFFSET;
- dw_offset_t abstract_origin_die_offset = DW_INVALID_OFFSET;
- dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET;
-
- unsigned type_quals = 0;
- clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern
-
-
- const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
- if (num_attributes > 0)
- {
- uint32_t i;
- for (i=0; i<num_attributes; ++i)
- {
- attr = attributes.AttributeAtIndex(i);
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_name:
- type_name_cstr = form_value.AsCString(&get_debug_str_data());
- type_name_const_str.SetCString(type_name_cstr);
- break;
-
- case DW_AT_linkage_name:
- case DW_AT_MIPS_linkage_name: break; // mangled = form_value.AsCString(&get_debug_str_data()); break;
- case DW_AT_type: type_die_offset = form_value.Reference(); break;
- case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
- case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
- case DW_AT_inline: is_inline = form_value.Boolean(); break;
- case DW_AT_virtuality: is_virtual = form_value.Boolean(); break;
- case DW_AT_explicit: is_explicit = form_value.Boolean(); break;
- case DW_AT_artificial: is_artificial = form_value.Boolean(); 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_specification:
- specification_die_offset = form_value.Reference();
- break;
-
- case DW_AT_abstract_origin:
- abstract_origin_die_offset = form_value.Reference();
- break;
-
- case DW_AT_object_pointer:
- object_pointer_die_offset = form_value.Reference();
- break;
-
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_address_class:
- case DW_AT_calling_convention:
- case DW_AT_data_location:
- case DW_AT_elemental:
- case DW_AT_entry_pc:
- case DW_AT_frame_base:
- case DW_AT_high_pc:
- case DW_AT_low_pc:
- case DW_AT_prototyped:
- case DW_AT_pure:
- case DW_AT_ranges:
- case DW_AT_recursive:
- case DW_AT_return_addr:
- case DW_AT_segment:
- case DW_AT_start_scope:
- case DW_AT_static_link:
- case DW_AT_trampoline:
- case DW_AT_visibility:
- case DW_AT_vtable_elem_location:
- case DW_AT_description:
- case DW_AT_sibling:
- break;
- }
- }
- }
+ GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()");
+ m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), tag, qualified_name_hash, die_offsets);
}
-
- std::string object_pointer_name;
- if (object_pointer_die_offset != DW_INVALID_OFFSET)
+ else if (has_tag)
{
- // Get the name from the object pointer die
- StreamString s;
- if (DWARFDebugInfoEntry::GetName (this, dwarf_cu, object_pointer_die_offset, s))
- {
- object_pointer_name.assign(s.GetData());
- }
+ if (log)
+ GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()");
+ m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), tag, die_offsets);
}
-
- DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
- CompilerType return_clang_type;
- Type *func_type = NULL;
-
- if (type_die_offset != DW_INVALID_OFFSET)
- func_type = ResolveTypeUID(type_die_offset);
-
- if (func_type)
- return_clang_type = func_type->GetClangForwardType();
else
- return_clang_type = ast.GetBasicType(eBasicTypeVoid);
-
-
- std::vector<CompilerType> function_param_types;
- std::vector<clang::ParmVarDecl*> function_param_decls;
-
- // Parse the function children for the parameters
-
- const DWARFDebugInfoEntry *decl_ctx_die = NULL;
- clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
- const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind();
-
- const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind);
- // Start off static. This will be set to false in ParseChildParameters(...)
- // if we find a "this" parameters as the first parameter
- if (is_cxx_method)
- is_static = true;
-
- if (die->HasChildren())
{
- bool skip_artificial = true;
- ParseChildParameters (sc,
- containing_decl_ctx,
- dwarf_cu,
- die,
- skip_artificial,
- is_static,
- is_variadic,
- function_param_types,
- function_param_decls,
- type_quals);
- }
-
- // clang_type will get the function prototype clang type after this call
- clang_type = ast.CreateFunctionType (return_clang_type,
- function_param_types.data(),
- function_param_types.size(),
- is_variadic,
- type_quals);
-
- bool ignore_containing_context = false;
-
- if (type_name_cstr)
+ m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets);
+ }
+ }
+ }
+ else
+ {
+ if (!m_indexed)
+ Index ();
+
+ m_type_index.Find (type_name, die_offsets);
+ }
+
+ const size_t num_matches = die_offsets.size();
+
+
+ DWARFCompileUnit* type_cu = NULL;
+ const DWARFDebugInfoEntry* type_die = NULL;
+ if (num_matches)
+ {
+ DWARFDebugInfo* debug_info = DebugInfo();
+ for (size_t i=0; i<num_matches; ++i)
+ {
+ const dw_offset_t die_offset = die_offsets[i];
+ type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
+
+ if (type_die)
{
- bool type_handled = false;
- if (tag == DW_TAG_subprogram)
+ bool try_resolving_type = false;
+
+ // Don't try and resolve the DIE we are looking for with the DIE itself!
+ const dw_tag_t type_tag = type_die->Tag();
+ // Make sure the tags match
+ if (type_tag == tag)
{
- ObjCLanguageRuntime::MethodName objc_method (type_name_cstr, true);
- if (objc_method.IsValid(true))
- {
- CompilerType class_opaque_type;
- ConstString class_name(objc_method.GetClassName());
- if (class_name)
- {
- TypeSP complete_objc_class_type_sp (FindCompleteObjCDefinitionTypeForDIE (NULL, class_name, false));
-
- if (complete_objc_class_type_sp)
- {
- CompilerType type_clang_forward_type = complete_objc_class_type_sp->GetClangForwardType();
- if (ClangASTContext::IsObjCObjectOrInterfaceType(type_clang_forward_type))
- class_opaque_type = type_clang_forward_type;
- }
- }
-
- if (class_opaque_type)
- {
- // If accessibility isn't set to anything valid, assume public for
- // now...
- if (accessibility == eAccessNone)
- accessibility = eAccessPublic;
-
- clang::ObjCMethodDecl *objc_method_decl = ast.AddMethodToObjCObjectType (class_opaque_type,
- type_name_cstr,
- clang_type,
- accessibility,
- is_artificial);
- type_handled = objc_method_decl != NULL;
- if (type_handled)
- {
- LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die);
- GetClangASTContext().SetMetadataAsUserID (objc_method_decl, MakeUserID(die->GetOffset()));
- }
- else
- {
- GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: invalid Objective-C method 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));
- }
- }
- }
- else if (is_cxx_method)
+ // The tags match, lets try resolving this type
+ try_resolving_type = true;
+ }
+ else
+ {
+ // The tags don't match, but we need to watch our for a
+ // forward declaration for a struct and ("struct foo")
+ // ends up being a class ("class foo { ... };") or
+ // vice versa.
+ switch (type_tag)
{
- // Look at the parent of this DIE and see if is is
- // a class or struct and see if this is actually a
- // C++ method
- Type *class_type = ResolveType (dwarf_cu, decl_ctx_die);
- if (class_type)
- {
- if (class_type->GetID() != MakeUserID(decl_ctx_die->GetOffset()))
- {
- // We uniqued the parent class of this function to another class
- // so we now need to associate all dies under "decl_ctx_die" to
- // DIEs in the DIE for "class_type"...
- SymbolFileDWARF *class_symfile = NULL;
- DWARFCompileUnitSP class_type_cu_sp;
- const DWARFDebugInfoEntry *class_type_die = NULL;
-
- SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile();
- if (debug_map_symfile)
- {
- class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID()));
- class_type_die = class_symfile->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
- }
- else
- {
- class_symfile = this;
- class_type_die = DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
- }
- if (class_type_die)
- {
- DWARFDIECollection failures;
-
- CopyUniqueClassMethodTypes (class_symfile,
- class_type,
- class_type_cu_sp.get(),
- class_type_die,
- dwarf_cu,
- decl_ctx_die,
- failures);
-
- // FIXME do something with these failures that's smarter than
- // just dropping them on the ground. Unfortunately classes don't
- // like having stuff added to them after their definitions are
- // complete...
-
- type_ptr = m_die_to_type[die];
- if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
- {
- type_sp = type_ptr->shared_from_this();
- break;
- }
- }
- }
-
- if (specification_die_offset != DW_INVALID_OFFSET)
- {
- // We have a specification which we are going to base our function
- // prototype off of, so we need this type to be completed so that the
- // m_die_to_decl_ctx for the method in the specification has a valid
- // clang decl context.
- class_type->GetClangForwardType();
- // If we have a specification, then the function type should have been
- // made with the specification and not with this die.
- DWARFCompileUnitSP spec_cu_sp;
- const DWARFDebugInfoEntry* spec_die = DebugInfo()->GetDIEPtr(specification_die_offset, &spec_cu_sp);
- clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, spec_die);
- if (spec_clang_decl_ctx)
- {
- LinkDeclContextToDIE(spec_clang_decl_ctx, die);
- }
- else
- {
- GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_specification(0x%8.8x) has no decl\n",
- MakeUserID(die->GetOffset()),
- specification_die_offset);
- }
- type_handled = true;
- }
- else if (abstract_origin_die_offset != DW_INVALID_OFFSET)
- {
- // We have a specification which we are going to base our function
- // prototype off of, so we need this type to be completed so that the
- // m_die_to_decl_ctx for the method in the abstract origin has a valid
- // clang decl context.
- class_type->GetClangForwardType();
-
- DWARFCompileUnitSP abs_cu_sp;
- const DWARFDebugInfoEntry* abs_die = DebugInfo()->GetDIEPtr(abstract_origin_die_offset, &abs_cu_sp);
- clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, abs_die);
- if (abs_clang_decl_ctx)
- {
- LinkDeclContextToDIE (abs_clang_decl_ctx, die);
- }
- else
- {
- GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_abstract_origin(0x%8.8x) has no decl\n",
- MakeUserID(die->GetOffset()),
- abstract_origin_die_offset);
- }
- type_handled = true;
- }
- else
- {
- CompilerType class_opaque_type = class_type->GetClangForwardType();
- if (ClangASTContext::IsCXXClassType(class_opaque_type))
- {
- if (class_opaque_type.IsBeingDefined ())
- {
- // Neither GCC 4.2 nor clang++ currently set a valid accessibility
- // in the DWARF for C++ methods... Default to public for now...
- if (accessibility == eAccessNone)
- accessibility = eAccessPublic;
-
- if (!is_static && !die->HasChildren())
- {
- // We have a C++ member function with no children (this pointer!)
- // and clang will get mad if we try and make a function that isn't
- // well formed in the DWARF, so we will just skip it...
- type_handled = true;
- }
- else
- {
- clang::CXXMethodDecl *cxx_method_decl;
- // REMOVE THE CRASH DESCRIPTION BELOW
- Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64 " from %s",
- type_name_cstr,
- class_type->GetName().GetCString(),
- MakeUserID(die->GetOffset()),
- m_obj_file->GetFileSpec().GetPath().c_str());
-
- const bool is_attr_used = false;
-
- cxx_method_decl = ast.AddMethodToCXXRecordType (class_opaque_type.GetOpaqueQualType(),
- type_name_cstr,
- clang_type,
- accessibility,
- is_virtual,
- is_static,
- is_inline,
- is_explicit,
- is_attr_used,
- is_artificial);
-
- type_handled = cxx_method_decl != NULL;
-
- if (type_handled)
- {
- LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die);
-
- Host::SetCrashDescription (NULL);
-
-
- ClangASTMetadata metadata;
- metadata.SetUserID(MakeUserID(die->GetOffset()));
-
- if (!object_pointer_name.empty())
- {
- metadata.SetObjectPtrName(object_pointer_name.c_str());
- if (log)
- log->Printf ("Setting object pointer name: %s on method object %p.\n",
- object_pointer_name.c_str(),
- static_cast<void*>(cxx_method_decl));
- }
- GetClangASTContext().SetMetadata (cxx_method_decl, metadata);
- }
- else
- {
- ignore_containing_context = true;
- }
- }
- }
- else
- {
- // We were asked to parse the type for a method in a class, yet the
- // class hasn't been asked to complete itself through the
- // clang::ExternalASTSource protocol, so we need to just have the
- // class complete itself and do things the right way, then our
- // DIE should then have an entry in the m_die_to_type map. First
- // we need to modify the m_die_to_type so it doesn't think we are
- // trying to parse this DIE anymore...
- m_die_to_type[die] = NULL;
-
- // Now we get the full type to force our class type to complete itself
- // using the clang::ExternalASTSource protocol which will parse all
- // base classes and all methods (including the method for this DIE).
- class_type->GetClangFullType();
-
- // The type for this DIE should have been filled in the function call above
- type_ptr = m_die_to_type[die];
- if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
- {
- type_sp = type_ptr->shared_from_this();
- break;
- }
-
- // FIXME This is fixing some even uglier behavior but we really need to
- // uniq the methods of each class as well as the class itself.
- // <rdar://problem/11240464>
- type_handled = true;
- }
- }
- }
- }
+ case DW_TAG_class_type:
+ // We had a "class foo", see if we ended up with a "struct foo { ... };"
+ try_resolving_type = (tag == DW_TAG_structure_type);
+ break;
+ case DW_TAG_structure_type:
+ // We had a "struct foo", see if we ended up with a "class foo { ... };"
+ try_resolving_type = (tag == DW_TAG_class_type);
+ break;
+ default:
+ // Tags don't match, don't event try to resolve
+ // using this type whose name matches....
+ break;
}
}
-
- if (!type_handled)
+
+ if (try_resolving_type)
{
- // We just have a function that isn't part of a class
- clang::FunctionDecl *function_decl = ast.CreateFunctionDeclaration (ignore_containing_context ? GetClangASTContext().GetTranslationUnitDecl() : containing_decl_ctx,
- type_name_cstr,
- clang_type,
- storage,
- is_inline);
-
-// if (template_param_infos.GetSize() > 0)
-// {
-// clang::FunctionTemplateDecl *func_template_decl = ast.CreateFunctionTemplateDecl (containing_decl_ctx,
-// function_decl,
-// type_name_cstr,
-// template_param_infos);
-//
-// ast.CreateFunctionTemplateSpecializationInfo (function_decl,
-// func_template_decl,
-// template_param_infos);
-// }
- // Add the decl to our DIE to decl context map
- assert (function_decl);
- LinkDeclContextToDIE(function_decl, die);
- if (!function_param_decls.empty())
- ast.SetFunctionParameters (function_decl,
- &function_param_decls.front(),
- function_param_decls.size());
-
- ClangASTMetadata metadata;
- metadata.SetUserID(MakeUserID(die->GetOffset()));
+ DWARFDeclContext type_dwarf_decl_ctx;
+ type_die->GetDWARFDeclContext (this, type_cu, type_dwarf_decl_ctx);
- if (!object_pointer_name.empty())
+ if (log)
{
- metadata.SetObjectPtrName(object_pointer_name.c_str());
- if (log)
- log->Printf ("Setting object pointer name: %s on function object %p.",
- object_pointer_name.c_str(),
- static_cast<void*>(function_decl));
+ GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') trying die=0x%8.8x (%s)",
+ DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
+ dwarf_decl_ctx.GetQualifiedName(),
+ type_die->GetOffset(),
+ type_dwarf_decl_ctx.GetQualifiedName());
}
- GetClangASTContext().SetMetadata (function_decl, metadata);
- }
- }
- type_sp.reset( new Type (MakeUserID(die->GetOffset()),
- this,
- type_name_const_str,
- 0,
- NULL,
- LLDB_INVALID_UID,
- Type::eEncodingIsUID,
- &decl,
- clang_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
- m_die_to_type[die] = 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;
- bool is_vector = false;
- const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-
- if (num_attributes > 0)
- {
- uint32_t i;
- for (i=0; i<num_attributes; ++i)
- {
- attr = attributes.AttributeAtIndex(i);
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
+
+ // Make sure the decl contexts match all the way up
+ if (dwarf_decl_ctx == type_dwarf_decl_ctx)
{
- switch (attr)
+ Type *resolved_type = ResolveType (type_cu, type_die, false);
+ if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
{
- case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
- case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
- case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
- case DW_AT_name:
- type_name_cstr = form_value.AsCString(&get_debug_str_data());
- 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_byte_stride: byte_stride = form_value.Unsigned(); break;
- case DW_AT_bit_stride: bit_stride = form_value.Unsigned(); break;
- case DW_AT_GNU_vector: is_vector = form_value.Boolean(); break;
- case DW_AT_accessibility: break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
- case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_data_location:
- case DW_AT_description:
- case DW_AT_ordering:
- case DW_AT_start_scope:
- case DW_AT_visibility:
- case DW_AT_specification:
- case DW_AT_abstract_origin:
- case DW_AT_sibling:
+ type_sp = resolved_type->shared_from_this();
break;
}
}
}
-
- DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
- Type *element_type = ResolveTypeUID(type_die_offset);
-
- if (element_type)
+ else
{
- std::vector<uint64_t> element_orders;
- ParseChildArrayInfo(sc, dwarf_cu, die, first_index, element_orders, byte_stride, bit_stride);
- if (byte_stride == 0 && bit_stride == 0)
- byte_stride = element_type->GetByteSize();
- CompilerType array_element_type = element_type->GetClangForwardType();
- uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride;
- if (element_orders.size() > 0)
- {
- uint64_t num_elements = 0;
- std::vector<uint64_t>::const_reverse_iterator pos;
- std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend();
- for (pos = element_orders.rbegin(); pos != end; ++pos)
- {
- num_elements = *pos;
- clang_type = ast.CreateArrayType (array_element_type,
- num_elements,
- is_vector);
- array_element_type = clang_type;
- array_element_bit_stride = num_elements ?
- array_element_bit_stride * num_elements :
- array_element_bit_stride;
- }
- }
- else
+ if (log)
{
- clang_type = ast.CreateArrayType (array_element_type, 0, is_vector);
+ std::string qualified_name;
+ type_die->GetQualifiedName(this, type_cu, qualified_name);
+ GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') ignoring die=0x%8.8x (%s)",
+ DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
+ dwarf_decl_ctx.GetQualifiedName(),
+ type_die->GetOffset(),
+ qualified_name.c_str());
}
- ConstString empty_name;
- type_sp.reset( new Type (MakeUserID(die->GetOffset()),
- this,
- empty_name,
- array_element_bit_stride / 8,
- NULL,
- type_die_offset,
- Type::eEncodingIsUID,
- &decl,
- clang_type,
- Type::eResolveStateFull));
- type_sp->SetEncodingType (element_type);
}
}
- }
- break;
-
- case DW_TAG_ptr_to_member_type:
- {
- dw_offset_t type_die_offset = DW_INVALID_OFFSET;
- dw_offset_t containing_type_die_offset = DW_INVALID_OFFSET;
-
- const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-
- if (num_attributes > 0) {
- uint32_t i;
- for (i=0; i<num_attributes; ++i)
+ else
+ {
+ if (m_using_apple_tables)
{
- attr = attributes.AttributeAtIndex(i);
- if (attributes.ExtractFormValueAtIndex(this, i, form_value))
- {
- switch (attr)
- {
- case DW_AT_type:
- type_die_offset = form_value.Reference(); break;
- case DW_AT_containing_type:
- containing_type_die_offset = form_value.Reference(); break;
- }
- }
+ GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
+ die_offset, type_name.GetCString());
}
-
- Type *pointee_type = ResolveTypeUID(type_die_offset);
- Type *class_type = ResolveTypeUID(containing_type_die_offset);
-
- CompilerType pointee_clang_type = pointee_type->GetClangForwardType();
- CompilerType class_clang_type = class_type->GetClangLayoutType();
-
- clang_type = ClangASTContext::CreateMemberPointerType(pointee_clang_type, class_clang_type);
-
- byte_size = clang_type.GetByteSize(nullptr);
-
- type_sp.reset( new Type (MakeUserID(die->GetOffset()),
- this,
- type_name_const_str,
- byte_size,
- NULL,
- LLDB_INVALID_UID,
- Type::eEncodingIsUID,
- NULL,
- clang_type,
- Type::eResolveStateForward));
- }
-
- break;
- }
- default:
- 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())
- {
- const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die);
- dw_tag_t sc_parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
-
- 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(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);
-
- m_die_to_type[die] = type_sp.get();
}
}
- else if (type_ptr != DIE_IS_BEING_PARSED)
- {
- type_sp = type_ptr->shared_from_this();
- }
}
return type_sp;
}
+TypeSP
+SymbolFileDWARF::ParseType (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new_ptr)
+{
+ TypeSystem *type_system = GetTypeSystemForLanguage(dwarf_cu->GetLanguageType());
+
+ if (type_system)
+ {
+ Log *log = LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO);
+ return type_system->ParseTypeFromDWARF (sc, this, dwarf_cu, die, log, type_is_new_ptr);
+ }
+ else
+ return TypeSP();
+}
+
size_t
SymbolFileDWARF::ParseTypes
(
@@ -8215,51 +4700,16 @@ SymbolFileDWARF::LayoutRecordType(void *
llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
{
- SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
- return symbol_file_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets);
-}
-
-bool
-SymbolFileDWARF::LayoutRecordType(const clang::RecordDecl *record_decl, uint64_t &bit_size, uint64_t &alignment,
- llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
-{
- Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
- RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl);
- bool success = false;
- base_offsets.clear();
- vbase_offsets.clear();
- if (pos != m_record_decl_to_layout_map.end())
- {
- bit_size = pos->second.bit_size;
- alignment = pos->second.alignment;
- field_offsets.swap(pos->second.field_offsets);
- base_offsets.swap (pos->second.base_offsets);
- vbase_offsets.swap (pos->second.vbase_offsets);
- m_record_decl_to_layout_map.erase(pos);
- success = true;
- }
- else
+ if (baton)
{
- bit_size = 0;
- alignment = 0;
- field_offsets.clear();
+ SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
+ TypeSystem *type_system = symbol_file_dwarf->GetTypeSystemForLanguage(eLanguageTypeC_plus_plus);
+ if (type_system)
+ return type_system->LayoutRecordType (symbol_file_dwarf, record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets);
}
-
- if (log)
- GetObjectFile()->GetModule()->LogMessage (log,
- "SymbolFileDWARF::LayoutRecordType (record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u],base_offsets[%u], vbase_offsets[%u]) success = %i",
- static_cast<const void*>(record_decl),
- bit_size, alignment,
- static_cast<uint32_t>(field_offsets.size()),
- static_cast<uint32_t>(base_offsets.size()),
- static_cast<uint32_t>(vbase_offsets.size()),
- success);
- return success;
+ return false;
}
-
SymbolFileDWARFDebugMap *
SymbolFileDWARF::GetDebugMapSymfile ()
{
Modified: lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h (original)
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h Fri Aug 14 15:02:05 2015
@@ -61,12 +61,15 @@ class DWARFDIECollection;
class DWARFFormValue;
class SymbolFileDWARFDebugMap;
+#define DIE_IS_BEING_PARSED ((lldb_private::Type*)1)
+
class SymbolFileDWARF : public lldb_private::SymbolFile, public lldb_private::UserID
{
public:
friend class SymbolFileDWARFDebugMap;
friend class DebugMapModule;
friend class DWARFCompileUnit;
+ friend class ClangASTContext;
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
@@ -91,53 +94,58 @@ public:
// Constructors and Destructors
//------------------------------------------------------------------
SymbolFileDWARF(lldb_private::ObjectFile* ofile);
- virtual ~SymbolFileDWARF();
+ ~SymbolFileDWARF() override;
- virtual uint32_t CalculateAbilities ();
- virtual void InitializeObject();
+ uint32_t CalculateAbilities () override;
+ void InitializeObject() override;
//------------------------------------------------------------------
// Compile Unit function calls
//------------------------------------------------------------------
- virtual uint32_t GetNumCompileUnits();
- virtual lldb::CompUnitSP ParseCompileUnitAtIndex(uint32_t index);
+ uint32_t GetNumCompileUnits() override;
+ lldb::CompUnitSP ParseCompileUnitAtIndex(uint32_t index) override;
- virtual lldb::LanguageType ParseCompileUnitLanguage (const lldb_private::SymbolContext& sc);
- virtual size_t ParseCompileUnitFunctions (const lldb_private::SymbolContext& sc);
- virtual bool ParseCompileUnitLineTable (const lldb_private::SymbolContext& sc);
- virtual bool ParseCompileUnitSupportFiles (const lldb_private::SymbolContext& sc, lldb_private::FileSpecList& support_files);
- virtual bool ParseImportedModules (const lldb_private::SymbolContext &sc, std::vector<lldb_private::ConstString> &imported_modules);
- virtual size_t ParseFunctionBlocks (const lldb_private::SymbolContext& sc);
- virtual size_t ParseTypes (const lldb_private::SymbolContext& sc);
- virtual size_t ParseVariablesForContext (const lldb_private::SymbolContext& sc);
-
- virtual lldb_private::Type* ResolveTypeUID(lldb::user_id_t type_uid);
- virtual bool ResolveClangOpaqueTypeDefinition (lldb_private::CompilerType& clang_type);
-
- virtual lldb_private::Type* ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed = true);
- virtual clang::DeclContext* GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid);
- virtual clang::DeclContext* GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid);
-
- virtual uint32_t ResolveSymbolContext (const lldb_private::Address& so_addr, uint32_t resolve_scope, lldb_private::SymbolContext& sc);
- virtual uint32_t ResolveSymbolContext (const lldb_private::FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, lldb_private::SymbolContextList& sc_list);
- virtual uint32_t FindGlobalVariables(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::VariableList& variables);
- virtual uint32_t FindGlobalVariables(const lldb_private::RegularExpression& regex, bool append, uint32_t max_matches, lldb_private::VariableList& variables);
- virtual uint32_t FindFunctions(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list);
- virtual uint32_t FindFunctions(const lldb_private::RegularExpression& regex, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list);
- virtual uint32_t FindTypes (const lldb_private::SymbolContext& sc, const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::TypeList& types);
- virtual lldb_private::TypeList *
- GetTypeList ();
- virtual size_t GetTypes (lldb_private::SymbolContextScope *sc_scope,
+ lldb::LanguageType ParseCompileUnitLanguage (const lldb_private::SymbolContext& sc) override;
+ size_t ParseCompileUnitFunctions (const lldb_private::SymbolContext& sc) override;
+ bool ParseCompileUnitLineTable (const lldb_private::SymbolContext& sc) override;
+ bool ParseCompileUnitSupportFiles (const lldb_private::SymbolContext& sc, lldb_private::FileSpecList& support_files) override;
+ bool ParseImportedModules (const lldb_private::SymbolContext &sc, std::vector<lldb_private::ConstString> &imported_modules) override;
+ size_t ParseFunctionBlocks (const lldb_private::SymbolContext& sc) override;
+ size_t ParseTypes (const lldb_private::SymbolContext& sc) override;
+ size_t ParseVariablesForContext (const lldb_private::SymbolContext& sc) override;
+
+ lldb_private::Type* ResolveTypeUID(lldb::user_id_t type_uid) override;
+ bool ResolveClangOpaqueTypeDefinition (lldb_private::CompilerType& clang_type) override;
+
+ lldb_private::Type* ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed = true);
+ lldb_private::Type* GetCachedTypeForDIE (const DWARFDebugInfoEntry* type_die) const;
+ void ClearDIEBeingParsed (const DWARFDebugInfoEntry* type_die);
+ clang::DeclContext* GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) override;
+ clang::DeclContext* GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) override;
+
+ uint32_t ResolveSymbolContext (const lldb_private::Address& so_addr, uint32_t resolve_scope, lldb_private::SymbolContext& sc) override;
+ uint32_t ResolveSymbolContext (const lldb_private::FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, lldb_private::SymbolContextList& sc_list) override;
+ uint32_t FindGlobalVariables(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::VariableList& variables) override;
+ uint32_t FindGlobalVariables(const lldb_private::RegularExpression& regex, bool append, uint32_t max_matches, lldb_private::VariableList& variables) override;
+ uint32_t FindFunctions(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list) override;
+ uint32_t FindFunctions(const lldb_private::RegularExpression& regex, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list) override;
+ uint32_t FindTypes (const lldb_private::SymbolContext& sc, const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::TypeList& types) override;
+ lldb_private::TypeList *
+ GetTypeList () override;
+ size_t GetTypes (lldb_private::SymbolContextScope *sc_scope,
uint32_t type_mask,
- lldb_private::TypeList &type_list);
+ lldb_private::TypeList &type_list) override;
virtual lldb_private::ClangASTContext &
- GetClangASTContext ();
+ GetClangASTContext ();
+
+ lldb_private::TypeSystem *
+ GetTypeSystemForLanguage (lldb::LanguageType language) override;
- virtual lldb_private::ClangNamespaceDecl
+ lldb_private::ClangNamespaceDecl
FindNamespace (const lldb_private::SymbolContext& sc,
const lldb_private::ConstString &name,
- const lldb_private::ClangNamespaceDecl *parent_namespace_decl);
+ const lldb_private::ClangNamespaceDecl *parent_namespace_decl) override;
//------------------------------------------------------------------
@@ -160,42 +168,14 @@ public:
llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets);
- bool LayoutRecordType(const clang::RecordDecl *record_decl, uint64_t &size, uint64_t &alignment,
- llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets);
-
- struct LayoutInfo
- {
- LayoutInfo () :
- bit_size(0),
- alignment(0),
- field_offsets(),
- base_offsets(),
- vbase_offsets()
- {
- }
- uint64_t bit_size;
- uint64_t alignment;
- llvm::DenseMap<const clang::FieldDecl *, uint64_t> field_offsets;
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> base_offsets;
- llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> vbase_offsets;
- };
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
- virtual lldb_private::ConstString
- GetPluginName();
-
- virtual uint32_t
- GetPluginVersion();
+ lldb_private::ConstString
+ GetPluginName() override;
- // Approach 2 - count + accessor
- // Index compile units would scan the initial compile units and register
- // them with the module. This would only be done on demand if and only if
- // the compile units were needed.
- //virtual size_t GetCompUnitCount() = 0;
- //virtual CompUnitSP GetCompUnitAtIndex(size_t cu_idx) = 0;
+ uint32_t
+ GetPluginVersion() override;
const lldb_private::DWARFDataExtractor& get_debug_abbrev_data ();
const lldb_private::DWARFDataExtractor& get_debug_aranges_data ();
@@ -238,22 +218,8 @@ public:
return NULL;
}
- clang::DeclContext *
- GetClangDeclContextForDIE (const lldb_private::SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die);
-
- clang::DeclContext *
- GetClangDeclContextForDIEOffset (const lldb_private::SymbolContext &sc, dw_offset_t die_offset);
-
- clang::DeclContext *
- GetClangDeclContextContainingDIE (DWARFCompileUnit *cu,
- const DWARFDebugInfoEntry *die,
- const DWARFDebugInfoEntry **decl_ctx_die);
-
- clang::DeclContext *
- GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset);
-
const DWARFDebugInfoEntry *
- GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die);
+ GetDeclContextDIEContainingDIE (const DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die);
void
SearchDeclContext (const clang::DeclContext *decl_context,
@@ -275,6 +241,24 @@ public:
bool
HasForwardDeclForClangType (const lldb_private::CompilerType &clang_type);
+ lldb_private::CompileUnit*
+ GetCompUnitForDWARFCompUnit(DWARFCompileUnit* dwarf_cu, uint32_t cu_idx = UINT32_MAX);
+
+ lldb::user_id_t
+ MakeUserID (dw_offset_t die_offset) const
+ {
+ return GetID() | die_offset;
+ }
+
+ size_t
+ GetObjCMethodDIEOffsets (lldb_private::ConstString class_name, DIEArray &method_die_offsets);
+
+ bool
+ Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu);
+
+ static const DWARFDebugInfoEntry *
+ GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die);
+
protected:
enum
@@ -298,15 +282,10 @@ protected:
bool NamespaceDeclMatchesThisSymbolFile (const lldb_private::ClangNamespaceDecl *namespace_decl);
- bool DIEIsInNamespace (const lldb_private::ClangNamespaceDecl *namespace_decl,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry* die);
-
DISALLOW_COPY_AND_ASSIGN (SymbolFileDWARF);
lldb::CompUnitSP ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx);
DWARFCompileUnit* GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit);
DWARFCompileUnit* GetNextUnparsedDWARFCompileUnit(DWARFCompileUnit* prev_cu);
- lldb_private::CompileUnit* GetCompUnitForDWARFCompUnit(DWARFCompileUnit* dwarf_cu, uint32_t cu_idx = UINT32_MAX);
bool GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, lldb_private::SymbolContext& sc);
lldb_private::Function * ParseCompileUnitFunction (const lldb_private::SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die);
size_t ParseFunctionBlocks (const lldb_private::SymbolContext& sc,
@@ -333,59 +312,11 @@ protected:
bool parse_siblings,
bool parse_children,
lldb_private::VariableList* cc_variable_list = NULL);
-
- class DelayedAddObjCClassProperty;
- typedef std::vector <DelayedAddObjCClassProperty> DelayedPropertyList;
bool ClassOrStructIsVirtual (
DWARFCompileUnit* dwarf_cu,
const DWARFDebugInfoEntry *parent_die);
- size_t ParseChildMembers(
- const lldb_private::SymbolContext& sc,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *die,
- lldb_private::CompilerType &class_clang_type,
- const lldb::LanguageType class_language,
- std::vector<clang::CXXBaseSpecifier *>& base_classes,
- std::vector<int>& member_accessibilities,
- DWARFDIECollection& member_function_dies,
- DelayedPropertyList& delayed_properties,
- lldb::AccessType &default_accessibility,
- bool &is_a_class,
- LayoutInfo &layout_info);
-
- size_t ParseChildParameters(
- const lldb_private::SymbolContext& sc,
- clang::DeclContext *containing_decl_ctx,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die,
- bool skip_artificial,
- bool &is_static,
- bool &is_variadic,
- std::vector<lldb_private::CompilerType>& function_args,
- std::vector<clang::ParmVarDecl*>& function_param_decls,
- unsigned &type_quals);
- // lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos); // not currently needed
-
-
- size_t ParseChildEnumerators(
- const lldb_private::SymbolContext& sc,
- lldb_private::CompilerType &clang_type,
- bool is_signed,
- uint32_t enumerator_byte_size,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *enum_die);
-
- void ParseChildArrayInfo(
- const lldb_private::SymbolContext& sc,
- DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die,
- int64_t& first_index,
- std::vector<uint64_t>& element_orders,
- uint32_t& byte_stride,
- uint32_t& bit_stride);
-
// Given a die_offset, figure out the symbol context representing that die.
bool ResolveFunction (dw_offset_t offset,
DWARFCompileUnit *&dwarf_cu,
@@ -431,8 +362,6 @@ protected:
const lldb_private::ConstString &type_name,
bool must_be_implementation);
- bool Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu);
-
lldb::TypeSP FindCompleteObjCDefinitionType (const lldb_private::ConstString &type_name,
bool header_definition_ok);
@@ -468,9 +397,6 @@ protected:
const DWARFDebugInfoEntry *die,
dw_offset_t spec_block_die_offset,
DWARFCompileUnit **dwarf_cu_handle);
-
- clang::NamespaceDecl *
- ResolveNamespaceDIE (DWARFCompileUnit *curr_cu, const DWARFDebugInfoEntry *die);
UniqueDWARFASTTypeMap &
GetUniqueDWARFASTTypeMap ();
@@ -492,43 +418,6 @@ protected:
return true;
}
- lldb::user_id_t
- MakeUserID (dw_offset_t die_offset) const
- {
- return GetID() | die_offset;
- }
-
- static bool
- DeclKindIsCXXClass (clang::Decl::Kind decl_kind)
- {
- switch (decl_kind)
- {
- case clang::Decl::CXXRecord:
- case clang::Decl::ClassTemplateSpecialization:
- return true;
- default:
- break;
- }
- return false;
- }
-
- bool
- ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *parent_die,
- lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
-
- bool
- ParseTemplateDIE (DWARFCompileUnit* dwarf_cu,
- const DWARFDebugInfoEntry *die,
- lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
-
- clang::ClassTemplateDecl *
- ParseClassTemplateDecl (clang::DeclContext *decl_ctx,
- lldb::AccessType access_type,
- const char *parent_name,
- int tag_decl_kind,
- const lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
-
bool
DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugInfoEntry *die1,
DWARFCompileUnit* cu2, const DWARFDebugInfoEntry *die2);
@@ -539,15 +428,6 @@ protected:
const lldb_private::ConstString &selector);
bool
- CopyUniqueClassMethodTypes (SymbolFileDWARF *class_symfile,
- lldb_private::Type *class_type,
- DWARFCompileUnit* src_cu,
- const DWARFDebugInfoEntry *src_class_die,
- DWARFCompileUnit* dst_cu,
- const DWARFDebugInfoEntry *dst_class_die,
- DWARFDIECollection &failures);
-
- bool
FixupAddress (lldb_private::Address &addr);
typedef std::set<lldb_private::Type *> TypeSet;
@@ -627,14 +507,12 @@ protected:
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::VariableSP> DIEToVariableSP;
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::clang_type_t> DIEToClangType;
typedef llvm::DenseMap<lldb::clang_type_t, const DWARFDebugInfoEntry *> ClangTypeToDIE;
- typedef llvm::DenseMap<const clang::RecordDecl *, LayoutInfo> RecordDeclToLayoutMap;
DIEToDeclContextMap m_die_to_decl_ctx;
DeclContextToDIEMap m_decl_ctx_to_die;
DIEToTypePtr m_die_to_type;
DIEToVariableSP m_die_to_variable_sp;
DIEToClangType m_forward_decl_die_to_clang_type;
ClangTypeToDIE m_forward_decl_clang_type_to_die;
- RecordDeclToLayoutMap m_record_decl_to_layout_map;
};
#endif // SymbolFileDWARF_SymbolFileDWARF_h_
Modified: lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp (original)
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp Fri Aug 14 15:02:05 2015
@@ -1475,7 +1475,7 @@ SymbolFileDWARFDebugMap::LayoutRecordTyp
SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton;
bool laid_out = false;
symbol_file_dwarf->ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
- return (laid_out = oso_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets));
+ return (laid_out = SymbolFileDWARF::LayoutRecordType (oso_dwarf, record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets));
});
return laid_out;
}
Modified: lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h (original)
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h Fri Aug 14 15:02:05 2015
@@ -128,6 +128,7 @@ protected:
friend class DWARFCompileUnit;
friend class SymbolFileDWARF;
friend class DebugMapModule;
+ friend class ClangASTContext;
struct OSOInfo
{
lldb::ModuleSP module_sp;
Modified: lldb/trunk/source/Symbol/ClangASTContext.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Symbol/ClangASTContext.cpp?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Symbol/ClangASTContext.cpp (original)
+++ lldb/trunk/source/Symbol/ClangASTContext.cpp Fri Aug 14 15:02:05 2015
@@ -81,6 +81,16 @@
#include <mutex>
+
+//#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
+
+#ifdef ENABLE_DEBUG_PRINTF
+#include <stdio.h>
+#define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__)
+#else
+#define DEBUG_PRINTF(fmt, ...)
+#endif
+
using namespace lldb;
using namespace lldb_private;
using namespace llvm;
@@ -8036,18 +8046,13 @@ ClangASTContext::CompleteTagDeclarationD
return false;
}
-
-
-
-
-
-
bool
-ClangASTContext::AddEnumerationValueToEnumerationType (void* type, const CompilerType &enumerator_clang_type,
- const Declaration &decl,
- const char *name,
- int64_t enum_value,
- uint32_t enum_value_bit_size)
+ClangASTContext::AddEnumerationValueToEnumerationType (void* type,
+ const CompilerType &enumerator_clang_type,
+ const Declaration &decl,
+ const char *name,
+ int64_t enum_value,
+ uint32_t enum_value_bit_size)
{
if (type && enumerator_clang_type.IsValid() && name && name[0])
{
@@ -8089,7 +8094,6 @@ ClangASTContext::AddEnumerationValueToEn
return false;
}
-
CompilerType
ClangASTContext::GetEnumerationIntegerType (void* type)
{
@@ -8817,3 +8821,3796 @@ ClangASTContext::DumpTypeDescription (vo
}
}
}
+
+// DWARF parsing functions
+#pragma mark DWARF Parsing
+
+#include "lldb/Core/Module.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/TypeList.h"
+
+#include "plugins/SymbolFile/DWARF/DWARFCompileUnit.h"
+#include "plugins/SymbolFile/DWARF/DWARFDebugInfo.h"
+#include "plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h"
+#include "plugins/SymbolFile/DWARF/DWARFDeclContext.h"
+#include "plugins/SymbolFile/DWARF/DWARFDefines.h"
+#include "plugins/SymbolFile/DWARF/DWARFDIECollection.h"
+#include "plugins/SymbolFile/DWARF/SymbolFileDWARF.h"
+#include "plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h"
+#include "plugins/SymbolFile/DWARF/UniqueDWARFASTType.h"
+
+
+class ClangASTContext::DelayedAddObjCClassProperty
+{
+public:
+ DelayedAddObjCClassProperty(const CompilerType &class_opaque_type,
+ const char *property_name,
+ const CompilerType &property_opaque_type, // The property type is only required if you don't have an ivar decl
+ clang::ObjCIvarDecl *ivar_decl,
+ const char *property_setter_name,
+ const char *property_getter_name,
+ uint32_t property_attributes,
+ const ClangASTMetadata *metadata) :
+ m_class_opaque_type (class_opaque_type),
+ m_property_name (property_name),
+ m_property_opaque_type (property_opaque_type),
+ m_ivar_decl (ivar_decl),
+ m_property_setter_name (property_setter_name),
+ m_property_getter_name (property_getter_name),
+ m_property_attributes (property_attributes)
+ {
+ if (metadata != NULL)
+ {
+ m_metadata_ap.reset(new ClangASTMetadata());
+ *m_metadata_ap = *metadata;
+ }
+ }
+
+ DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs)
+ {
+ *this = rhs;
+ }
+
+ DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs)
+ {
+ m_class_opaque_type = rhs.m_class_opaque_type;
+ m_property_name = rhs.m_property_name;
+ m_property_opaque_type = rhs.m_property_opaque_type;
+ m_ivar_decl = rhs.m_ivar_decl;
+ m_property_setter_name = rhs.m_property_setter_name;
+ m_property_getter_name = rhs.m_property_getter_name;
+ m_property_attributes = rhs.m_property_attributes;
+
+ if (rhs.m_metadata_ap.get())
+ {
+ m_metadata_ap.reset (new ClangASTMetadata());
+ *m_metadata_ap = *rhs.m_metadata_ap;
+ }
+ return *this;
+ }
+
+ bool
+ Finalize()
+ {
+ ClangASTContext* ast = m_class_opaque_type.GetTypeSystem()->AsClangASTContext();
+ assert(ast);
+ return ast->AddObjCClassProperty (m_class_opaque_type,
+ m_property_name,
+ m_property_opaque_type,
+ m_ivar_decl,
+ m_property_setter_name,
+ m_property_getter_name,
+ m_property_attributes,
+ m_metadata_ap.get());
+ }
+
+private:
+ CompilerType m_class_opaque_type;
+ const char *m_property_name;
+ CompilerType m_property_opaque_type;
+ clang::ObjCIvarDecl *m_ivar_decl;
+ const char *m_property_setter_name;
+ const char *m_property_getter_name;
+ uint32_t m_property_attributes;
+ std::unique_ptr<ClangASTMetadata> m_metadata_ap;
+};
+
+bool
+ClangASTContext::ParseTemplateDIE (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die,
+ ClangASTContext::TemplateParameterInfos &template_param_infos)
+{
+ const dw_tag_t tag = die->Tag();
+
+ switch (tag)
+ {
+ case DW_TAG_template_type_parameter:
+ case DW_TAG_template_value_parameter:
+ {
+ const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
+
+ DWARFDebugInfoEntry::Attributes attributes;
+ const size_t num_attributes = die->GetAttributes (dwarf,
+ dwarf_cu,
+ fixed_form_sizes,
+ attributes);
+ const char *name = NULL;
+ Type *lldb_type = NULL;
+ CompilerType clang_type;
+ uint64_t uval64 = 0;
+ bool uval64_valid = false;
+ if (num_attributes > 0)
+ {
+ DWARFFormValue form_value;
+ for (size_t i=0; i<num_attributes; ++i)
+ {
+ const dw_attr_t attr = attributes.AttributeAtIndex(i);
+
+ switch (attr)
+ {
+ case DW_AT_name:
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ name = form_value.AsCString(&dwarf->get_debug_str_data());
+ break;
+
+ case DW_AT_type:
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ const dw_offset_t type_die_offset = form_value.Reference();
+ lldb_type = dwarf->ResolveTypeUID(type_die_offset);
+ if (lldb_type)
+ clang_type = lldb_type->GetClangForwardType();
+ }
+ break;
+
+ case DW_AT_const_value:
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ uval64_valid = true;
+ uval64 = form_value.Unsigned();
+ }
+ break;
+ default:
+ break;
+ }
+ }
+
+ clang::ASTContext *ast = getASTContext();
+ if (!clang_type)
+ clang_type = GetBasicType(eBasicTypeVoid);
+
+ if (clang_type)
+ {
+ bool is_signed = false;
+ if (name && name[0])
+ template_param_infos.names.push_back(name);
+ else
+ template_param_infos.names.push_back(NULL);
+
+ if (tag == DW_TAG_template_value_parameter &&
+ lldb_type != NULL &&
+ clang_type.IsIntegerType (is_signed) &&
+ uval64_valid)
+ {
+ llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed);
+ template_param_infos.args.push_back (clang::TemplateArgument (*ast,
+ llvm::APSInt(apint),
+ ClangASTContext::GetQualType(clang_type)));
+ }
+ else
+ {
+ template_param_infos.args.push_back (clang::TemplateArgument (ClangASTContext::GetQualType(clang_type)));
+ }
+ }
+ else
+ {
+ return false;
+ }
+
+ }
+ }
+ return true;
+
+ default:
+ break;
+ }
+ return false;
+}
+
+bool
+ClangASTContext::ParseTemplateParameterInfos (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die,
+ ClangASTContext::TemplateParameterInfos &template_param_infos)
+{
+
+ if (parent_die == NULL)
+ return false;
+
+ Args template_parameter_names;
+ for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild();
+ die != NULL;
+ die = die->GetSibling())
+ {
+ const dw_tag_t tag = die->Tag();
+
+ switch (tag)
+ {
+ case DW_TAG_template_type_parameter:
+ case DW_TAG_template_value_parameter:
+ ParseTemplateDIE (dwarf, dwarf_cu, die, template_param_infos);
+ break;
+
+ default:
+ break;
+ }
+ }
+ if (template_param_infos.args.empty())
+ return false;
+ return template_param_infos.args.size() == template_param_infos.names.size();
+}
+
+clang::ClassTemplateDecl *
+ClangASTContext::ParseClassTemplateDecl (SymbolFileDWARF *dwarf,
+ clang::DeclContext *decl_ctx,
+ lldb::AccessType access_type,
+ const char *parent_name,
+ int tag_decl_kind,
+ const ClangASTContext::TemplateParameterInfos &template_param_infos)
+{
+ if (template_param_infos.IsValid())
+ {
+ std::string template_basename(parent_name);
+ template_basename.erase (template_basename.find('<'));
+
+ return CreateClassTemplateDecl (decl_ctx,
+ access_type,
+ template_basename.c_str(),
+ tag_decl_kind,
+ template_param_infos);
+ }
+ return NULL;
+}
+
+bool
+ClangASTContext::ResolveClangOpaqueTypeDefinition (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *dwarf_cu,
+ const DWARFDebugInfoEntry* die,
+ Type *type,
+ CompilerType &clang_type)
+{
+ // Disable external storage for this type so we don't get anymore
+ // clang::ExternalASTSource queries for this type.
+ SetHasExternalStorage (clang_type.GetOpaqueQualType(), false);
+
+ if (dwarf == nullptr || dwarf_cu == nullptr || die == nullptr)
+ return false;
+
+ const dw_tag_t tag = die->Tag();
+
+ 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 (clang_type);
+ DWARFDebugInfoEntry::Attributes attributes;
+
+ switch (tag)
+ {
+ case DW_TAG_structure_type:
+ case DW_TAG_union_type:
+ case DW_TAG_class_type:
+ {
+ LayoutInfo layout_info;
+
+ {
+ if (die->HasChildren())
+ {
+ LanguageType class_language = eLanguageTypeUnknown;
+ if (ClangASTContext::IsObjCObjectOrInterfaceType(clang_type))
+ {
+ class_language = eLanguageTypeObjC;
+ // For objective C we don't start the definition when
+ // the class is created.
+ ClangASTContext::StartTagDeclarationDefinition (clang_type);
+ }
+
+ int tag_decl_kind = -1;
+ AccessType default_accessibility = eAccessNone;
+ if (tag == DW_TAG_structure_type)
+ {
+ tag_decl_kind = clang::TTK_Struct;
+ default_accessibility = eAccessPublic;
+ }
+ else if (tag == DW_TAG_union_type)
+ {
+ tag_decl_kind = clang::TTK_Union;
+ default_accessibility = eAccessPublic;
+ }
+ else if (tag == DW_TAG_class_type)
+ {
+ tag_decl_kind = clang::TTK_Class;
+ default_accessibility = eAccessPrivate;
+ }
+
+ SymbolContext sc(dwarf->GetCompUnitForDWARFCompUnit(dwarf_cu));
+ std::vector<clang::CXXBaseSpecifier *> base_classes;
+ std::vector<int> member_accessibilities;
+ bool is_a_class = false;
+ // Parse members and base classes first
+ DWARFDIECollection member_function_dies;
+
+ DelayedPropertyList delayed_properties;
+ ParseChildMembers (sc,
+ dwarf,
+ dwarf_cu,
+ die,
+ clang_type,
+ class_language,
+ base_classes,
+ member_accessibilities,
+ member_function_dies,
+ delayed_properties,
+ default_accessibility,
+ is_a_class,
+ layout_info);
+
+ // Now parse any methods if there were any...
+ size_t num_functions = member_function_dies.Size();
+ if (num_functions > 0)
+ {
+ for (size_t i=0; i<num_functions; ++i)
+ {
+ dwarf->ResolveType(dwarf_cu, member_function_dies.GetDIEPtrAtIndex(i));
+ }
+ }
+
+ if (class_language == eLanguageTypeObjC)
+ {
+ ConstString class_name (clang_type.GetTypeName());
+ if (class_name)
+ {
+ DIEArray method_die_offsets;
+ dwarf->GetObjCMethodDIEOffsets(class_name, method_die_offsets);
+
+ if (!method_die_offsets.empty())
+ {
+ DWARFDebugInfo* debug_info = dwarf->DebugInfo();
+
+ DWARFCompileUnit* method_cu = NULL;
+ const size_t num_matches = method_die_offsets.size();
+ for (size_t i=0; i<num_matches; ++i)
+ {
+ const dw_offset_t die_offset = method_die_offsets[i];
+ DWARFDebugInfoEntry *method_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &method_cu);
+
+ if (method_die)
+ dwarf->ResolveType (method_cu, method_die);
+ }
+ }
+
+ for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end();
+ pi != pe;
+ ++pi)
+ pi->Finalize();
+ }
+ }
+
+ // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we
+ // need to tell the clang type it is actually a class.
+ if (class_language != eLanguageTypeObjC)
+ {
+ if (is_a_class && tag_decl_kind != clang::TTK_Class)
+ SetTagTypeKind (ClangASTContext::GetQualType(clang_type), clang::TTK_Class);
+ }
+
+ // Since DW_TAG_structure_type gets used for both classes
+ // and structures, we may need to set any DW_TAG_member
+ // fields to have a "private" access if none was specified.
+ // When we parsed the child members we tracked that actual
+ // accessibility value for each DW_TAG_member in the
+ // "member_accessibilities" array. If the value for the
+ // member is zero, then it was set to the "default_accessibility"
+ // which for structs was "public". Below we correct this
+ // by setting any fields to "private" that weren't correctly
+ // set.
+ if (is_a_class && !member_accessibilities.empty())
+ {
+ // This is a class and all members that didn't have
+ // their access specified are private.
+ SetDefaultAccessForRecordFields (GetAsRecordDecl(clang_type),
+ eAccessPrivate,
+ &member_accessibilities.front(),
+ member_accessibilities.size());
+ }
+
+ if (!base_classes.empty())
+ {
+ // Make sure all base classes refer to complete types and not
+ // forward declarations. If we don't do this, clang will crash
+ // with an assertion in the call to clang_type.SetBaseClassesForClassType()
+ bool base_class_error = false;
+ for (auto &base_class : base_classes)
+ {
+ clang::TypeSourceInfo *type_source_info = base_class->getTypeSourceInfo();
+ if (type_source_info)
+ {
+ CompilerType base_class_type (this, type_source_info->getType().getAsOpaquePtr());
+ if (base_class_type.GetCompleteType() == false)
+ {
+ if (!base_class_error)
+ {
+ dwarf->GetObjectFile()->GetModule()->ReportError ("DWARF DIE at 0x%8.8x for class '%s' has a base class '%s' that is a forward declaration, not a complete definition.\nPlease file a bug against the compiler and include the preprocessed output for %s",
+ die->GetOffset(),
+ die->GetName(dwarf, dwarf_cu),
+ base_class_type.GetTypeName().GetCString(),
+ sc.comp_unit ? sc.comp_unit->GetPath().c_str() : "the source file");
+ }
+ // We have no choice other than to pretend that the base class
+ // is complete. If we don't do this, clang will crash when we
+ // call setBases() inside of "clang_type.SetBaseClassesForClassType()"
+ // below. Since we provide layout assistance, all ivars in this
+ // class and other classes will be fine, this is the best we can do
+ // short of crashing.
+
+ ClangASTContext::StartTagDeclarationDefinition (base_class_type);
+ ClangASTContext::CompleteTagDeclarationDefinition (base_class_type);
+ }
+ }
+ }
+ SetBaseClassesForClassType (clang_type.GetOpaqueQualType(),
+ &base_classes.front(),
+ base_classes.size());
+
+ // Clang will copy each CXXBaseSpecifier in "base_classes"
+ // so we have to free them all.
+ ClangASTContext::DeleteBaseClassSpecifiers (&base_classes.front(),
+ base_classes.size());
+ }
+ }
+ }
+
+ ClangASTContext::BuildIndirectFields (clang_type);
+ ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+
+ if (!layout_info.field_offsets.empty() ||
+ !layout_info.base_offsets.empty() ||
+ !layout_info.vbase_offsets.empty() )
+ {
+ if (type)
+ layout_info.bit_size = type->GetByteSize() * 8;
+ if (layout_info.bit_size == 0)
+ layout_info.bit_size = die->GetAttributeValueAsUnsigned(dwarf, dwarf_cu, DW_AT_byte_size, 0) * 8;
+
+ clang::CXXRecordDecl *record_decl = GetAsCXXRecordDecl(clang_type.GetOpaqueQualType());
+ if (record_decl)
+ {
+ if (log)
+ {
+ ModuleSP module_sp = dwarf->GetObjectFile()->GetModule();
+
+ if (module_sp)
+ {
+ module_sp->LogMessage (log,
+ "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) caching layout info for record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])",
+ static_cast<void*>(clang_type.GetOpaqueQualType()),
+ static_cast<void*>(record_decl),
+ layout_info.bit_size,
+ layout_info.alignment,
+ static_cast<uint32_t>(layout_info.field_offsets.size()),
+ static_cast<uint32_t>(layout_info.base_offsets.size()),
+ static_cast<uint32_t>(layout_info.vbase_offsets.size()));
+
+ uint32_t idx;
+ {
+ llvm::DenseMap<const clang::FieldDecl *, uint64_t>::const_iterator pos,
+ end = layout_info.field_offsets.end();
+ for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx)
+ {
+ module_sp->LogMessage(log,
+ "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) field[%u] = { bit_offset=%u, name='%s' }",
+ static_cast<void *>(clang_type.GetOpaqueQualType()),
+ idx,
+ static_cast<uint32_t>(pos->second),
+ pos->first->getNameAsString().c_str());
+ }
+ }
+
+ {
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos,
+ base_end = layout_info.base_offsets.end();
+ for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end; ++base_pos, ++idx)
+ {
+ module_sp->LogMessage(log,
+ "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) base[%u] = { byte_offset=%u, name='%s' }",
+ clang_type.GetOpaqueQualType(), idx, (uint32_t)base_pos->second.getQuantity(),
+ base_pos->first->getNameAsString().c_str());
+ }
+ }
+ {
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos,
+ vbase_end = layout_info.vbase_offsets.end();
+ for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end; ++vbase_pos, ++idx)
+ {
+ module_sp->LogMessage(log,
+ "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) vbase[%u] = { byte_offset=%u, name='%s' }",
+ static_cast<void *>(clang_type.GetOpaqueQualType()), idx,
+ static_cast<uint32_t>(vbase_pos->second.getQuantity()),
+ vbase_pos->first->getNameAsString().c_str());
+ }
+ }
+
+ }
+ }
+ m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info));
+ }
+ }
+ }
+
+ return (bool)clang_type;
+
+ case DW_TAG_enumeration_type:
+ ClangASTContext::StartTagDeclarationDefinition (clang_type);
+ if (die->HasChildren())
+ {
+ SymbolContext sc(dwarf->GetCompUnitForDWARFCompUnit(dwarf_cu));
+ bool is_signed = false;
+ clang_type.IsIntegerType(is_signed);
+ ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), dwarf, dwarf_cu, die);
+ }
+ ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+ return (bool)clang_type;
+
+ default:
+ assert(false && "not a forward clang type decl!");
+ break;
+ }
+
+ return false;
+}
+
+
+bool
+ClangASTContext::LayoutRecordType(SymbolFileDWARF *dwarf,
+ const clang::RecordDecl *record_decl,
+ uint64_t &bit_size,
+ uint64_t &alignment,
+ llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
+ llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
+{
+ RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl);
+ bool success = false;
+ base_offsets.clear();
+ vbase_offsets.clear();
+ if (pos != m_record_decl_to_layout_map.end())
+ {
+ bit_size = pos->second.bit_size;
+ alignment = pos->second.alignment;
+ field_offsets.swap(pos->second.field_offsets);
+ base_offsets.swap (pos->second.base_offsets);
+ vbase_offsets.swap (pos->second.vbase_offsets);
+ m_record_decl_to_layout_map.erase(pos);
+ success = true;
+ }
+ else
+ {
+ bit_size = 0;
+ alignment = 0;
+ field_offsets.clear();
+ }
+ return success;
+}
+
+
+size_t
+ClangASTContext::ParseChildEnumerators (const SymbolContext& sc,
+ lldb_private::CompilerType &clang_type,
+ bool is_signed,
+ uint32_t enumerator_byte_size,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die)
+{
+ if (parent_die == NULL)
+ return 0;
+
+ size_t enumerators_added = 0;
+ const DWARFDebugInfoEntry *die;
+ const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
+
+ for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+ {
+ const dw_tag_t tag = die->Tag();
+ if (tag == DW_TAG_enumerator)
+ {
+ DWARFDebugInfoEntry::Attributes attributes;
+ const size_t num_child_attributes = die->GetAttributes(dwarf, dwarf_cu, fixed_form_sizes, attributes);
+ if (num_child_attributes > 0)
+ {
+ const char *name = NULL;
+ bool got_value = false;
+ int64_t enum_value = 0;
+ Declaration decl;
+
+ uint32_t i;
+ for (i=0; i<num_child_attributes; ++i)
+ {
+ const dw_attr_t attr = attributes.AttributeAtIndex(i);
+ DWARFFormValue form_value;
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_const_value:
+ got_value = true;
+ if (is_signed)
+ enum_value = form_value.Signed();
+ else
+ enum_value = form_value.Unsigned();
+ break;
+
+ case DW_AT_name:
+ name = form_value.AsCString(&dwarf->get_debug_str_data());
+ break;
+
+ case DW_AT_description:
+ default:
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_sibling:
+ break;
+ }
+ }
+ }
+
+ if (name && name[0] && got_value)
+ {
+ AddEnumerationValueToEnumerationType (clang_type.GetOpaqueQualType(),
+ GetEnumerationIntegerType(clang_type.GetOpaqueQualType()),
+ decl,
+ name,
+ enum_value,
+ enumerator_byte_size * 8);
+ ++enumerators_added;
+ }
+ }
+ }
+ }
+ return enumerators_added;
+}
+
+#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
+
+class DIEStack
+{
+public:
+
+ void Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
+ {
+ m_dies.push_back (DIEInfo(cu, die));
+ }
+
+
+ void LogDIEs (Log *log, SymbolFileDWARF *dwarf)
+ {
+ StreamString log_strm;
+ const size_t n = m_dies.size();
+ log_strm.Printf("DIEStack[%" PRIu64 "]:\n", (uint64_t)n);
+ for (size_t i=0; i<n; i++)
+ {
+ DWARFCompileUnit *cu = m_dies[i].cu;
+ const DWARFDebugInfoEntry *die = m_dies[i].die;
+ std::string qualified_name;
+ die->GetQualifiedName(dwarf, cu, qualified_name);
+ log_strm.Printf ("[%" PRIu64 "] 0x%8.8x: %s name='%s'\n",
+ (uint64_t)i,
+ die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ qualified_name.c_str());
+ }
+ log->PutCString(log_strm.GetData());
+ }
+ void Pop ()
+ {
+ m_dies.pop_back();
+ }
+
+ class ScopedPopper
+ {
+ public:
+ ScopedPopper (DIEStack &die_stack) :
+ m_die_stack (die_stack),
+ m_valid (false)
+ {
+ }
+
+ void
+ Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
+ {
+ m_valid = true;
+ m_die_stack.Push (cu, die);
+ }
+
+ ~ScopedPopper ()
+ {
+ if (m_valid)
+ m_die_stack.Pop();
+ }
+
+
+
+ protected:
+ DIEStack &m_die_stack;
+ bool m_valid;
+ };
+
+protected:
+ struct DIEInfo {
+ DIEInfo (DWARFCompileUnit *c, const DWARFDebugInfoEntry *d) :
+ cu(c),
+ die(d)
+ {
+ }
+ DWARFCompileUnit *cu;
+ const DWARFDebugInfoEntry *die;
+ };
+ typedef std::vector<DIEInfo> Stack;
+ Stack m_dies;
+};
+#endif
+
+
+
+static AccessType
+DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility)
+{
+ switch (dwarf_accessibility)
+ {
+ case DW_ACCESS_public: return eAccessPublic;
+ case DW_ACCESS_private: return eAccessPrivate;
+ case DW_ACCESS_protected: return eAccessProtected;
+ default: break;
+ }
+ return eAccessNone;
+}
+
+static bool
+DeclKindIsCXXClass (clang::Decl::Kind decl_kind)
+{
+ switch (decl_kind)
+ {
+ case clang::Decl::CXXRecord:
+ case clang::Decl::ClassTemplateSpecialization:
+ return true;
+ default:
+ break;
+ }
+ return false;
+}
+
+struct BitfieldInfo
+{
+ uint64_t bit_size;
+ uint64_t bit_offset;
+
+ BitfieldInfo () :
+ bit_size (LLDB_INVALID_ADDRESS),
+ bit_offset (LLDB_INVALID_ADDRESS)
+ {
+ }
+
+ void
+ Clear()
+ {
+ bit_size = LLDB_INVALID_ADDRESS;
+ bit_offset = LLDB_INVALID_ADDRESS;
+ }
+
+ bool IsValid ()
+ {
+ return (bit_size != LLDB_INVALID_ADDRESS) &&
+ (bit_offset != LLDB_INVALID_ADDRESS);
+ }
+};
+
+Function *
+ClangASTContext::ParseFunctionFromDWARF (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die)
+{
+ DWARFDebugRanges::RangeList 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;
+
+ assert (die->Tag() == DW_TAG_subprogram);
+
+ if (die->Tag() != DW_TAG_subprogram)
+ return NULL;
+
+ if (die->GetDIENamesAndRanges (dwarf,
+ dwarf_cu,
+ 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 (dwarf->GetObjectFile()->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;
+ if (mangled)
+ func_name.SetValue(ConstString(mangled), true);
+ else if (die->GetParent()->Tag() == DW_TAG_compile_unit &&
+ LanguageRuntime::LanguageIsCPlusPlus(dwarf_cu->GetLanguageType()) &&
+ name && strcmp(name, "main") != 0)
+ {
+ // If the mangled name is not present in the DWARF, generate the demangled name
+ // using the decl context. We skip if the function is "main" as its name is
+ // never mangled.
+ bool is_static = false;
+ bool is_variadic = false;
+ unsigned type_quals = 0;
+ std::vector<CompilerType> param_types;
+ std::vector<clang::ParmVarDecl*> param_decls;
+ const DWARFDebugInfoEntry *decl_ctx_die = NULL;
+ DWARFDeclContext decl_ctx;
+ StreamString sstr;
+
+ die->GetDWARFDeclContext(dwarf, dwarf_cu, decl_ctx);
+ sstr << decl_ctx.GetQualifiedName();
+
+ clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE(dwarf,
+ dwarf_cu,
+ die,
+ &decl_ctx_die);
+ ParseChildParameters(sc,
+ containing_decl_ctx,
+ dwarf,
+ dwarf_cu,
+ die,
+ true,
+ is_static,
+ is_variadic,
+ param_types,
+ param_decls,
+ type_quals);
+ sstr << "(";
+ for (size_t i = 0; i < param_types.size(); i++)
+ {
+ if (i > 0)
+ sstr << ", ";
+ sstr << param_types[i].GetTypeName();
+ }
+ if (is_variadic)
+ sstr << ", ...";
+ sstr << ")";
+ if (type_quals & clang::Qualifiers::Const)
+ sstr << " const";
+
+ func_name.SetValue(ConstString(sstr.GetData()), false);
+ }
+ else
+ 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));
+
+ // Supply the type _only_ if it has already been parsed
+ Type *func_type = dwarf->m_die_to_type.lookup (die);
+
+ 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;
+}
+
+
+size_t
+ClangASTContext::ParseChildMembers (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die,
+ CompilerType &class_clang_type,
+ const LanguageType class_language,
+ std::vector<clang::CXXBaseSpecifier *>& base_classes,
+ std::vector<int>& member_accessibilities,
+ DWARFDIECollection& member_function_dies,
+ DelayedPropertyList& delayed_properties,
+ AccessType& default_accessibility,
+ bool &is_a_class,
+ LayoutInfo &layout_info)
+{
+ if (parent_die == NULL)
+ return 0;
+
+ size_t count = 0;
+ const DWARFDebugInfoEntry *die;
+ const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
+ uint32_t member_idx = 0;
+ BitfieldInfo last_field_info;
+ ModuleSP module_sp = dwarf->GetObjectFile()->GetModule();
+ ClangASTContext* ast = class_clang_type.GetTypeSystem()->AsClangASTContext();
+ if (ast == nullptr)
+ return 0;
+
+ for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+ {
+ dw_tag_t tag = die->Tag();
+
+ switch (tag)
+ {
+ case DW_TAG_member:
+ case DW_TAG_APPLE_property:
+ {
+ DWARFDebugInfoEntry::Attributes attributes;
+ const size_t num_attributes = die->GetAttributes (dwarf,
+ dwarf_cu,
+ fixed_form_sizes,
+ attributes);
+ if (num_attributes > 0)
+ {
+ Declaration decl;
+ //DWARFExpression location;
+ const char *name = NULL;
+ const char *prop_name = NULL;
+ const char *prop_getter_name = NULL;
+ const char *prop_setter_name = NULL;
+ uint32_t prop_attributes = 0;
+
+
+ bool is_artificial = false;
+ lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
+ AccessType accessibility = eAccessNone;
+ uint32_t member_byte_offset = UINT32_MAX;
+ size_t byte_size = 0;
+ size_t bit_offset = 0;
+ size_t bit_size = 0;
+ bool is_external = false; // On DW_TAG_members, this means the member is static
+ uint32_t i;
+ for (i=0; i<num_attributes && !is_artificial; ++i)
+ {
+ const dw_attr_t attr = attributes.AttributeAtIndex(i);
+ DWARFFormValue form_value;
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_name: name = form_value.AsCString(&dwarf->get_debug_str_data()); break;
+ case DW_AT_type: encoding_uid = form_value.Reference(); break;
+ case DW_AT_bit_offset: bit_offset = form_value.Unsigned(); break;
+ case DW_AT_bit_size: bit_size = form_value.Unsigned(); break;
+ case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
+ case DW_AT_data_member_location:
+ if (form_value.BlockData())
+ {
+ Value initialValue(0);
+ Value memberOffset(0);
+ const DWARFDataExtractor& debug_info_data = dwarf->get_debug_info_data();
+ uint32_t block_length = form_value.Unsigned();
+ uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
+ if (DWARFExpression::Evaluate(NULL, // ExecutionContext *
+ NULL, // ClangExpressionVariableList *
+ NULL, // ClangExpressionDeclMap *
+ NULL, // RegisterContext *
+ module_sp,
+ debug_info_data,
+ block_offset,
+ block_length,
+ eRegisterKindDWARF,
+ &initialValue,
+ memberOffset,
+ NULL))
+ {
+ member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
+ }
+ }
+ else
+ {
+ // With DWARF 3 and later, if the value is an integer constant,
+ // this form value is the offset in bytes from the beginning
+ // of the containing entity.
+ member_byte_offset = form_value.Unsigned();
+ }
+ break;
+
+ case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break;
+ case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
+ case DW_AT_APPLE_property_name: prop_name = form_value.AsCString(&dwarf->get_debug_str_data()); break;
+ case DW_AT_APPLE_property_getter: prop_getter_name = form_value.AsCString(&dwarf->get_debug_str_data()); break;
+ case DW_AT_APPLE_property_setter: prop_setter_name = form_value.AsCString(&dwarf->get_debug_str_data()); break;
+ case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break;
+ case DW_AT_external: is_external = form_value.Boolean(); break;
+
+ default:
+ case DW_AT_declaration:
+ case DW_AT_description:
+ case DW_AT_mutable:
+ case DW_AT_visibility:
+ case DW_AT_sibling:
+ break;
+ }
+ }
+ }
+
+ if (prop_name)
+ {
+ ConstString fixed_getter;
+ ConstString fixed_setter;
+
+ // Check if the property getter/setter were provided as full
+ // names. We want basenames, so we extract them.
+
+ if (prop_getter_name && prop_getter_name[0] == '-')
+ {
+ ObjCLanguageRuntime::MethodName prop_getter_method(prop_getter_name, true);
+ prop_getter_name = prop_getter_method.GetSelector().GetCString();
+ }
+
+ if (prop_setter_name && prop_setter_name[0] == '-')
+ {
+ ObjCLanguageRuntime::MethodName prop_setter_method(prop_setter_name, true);
+ prop_setter_name = prop_setter_method.GetSelector().GetCString();
+ }
+
+ // If the names haven't been provided, they need to be
+ // filled in.
+
+ if (!prop_getter_name)
+ {
+ prop_getter_name = prop_name;
+ }
+ if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly))
+ {
+ StreamString ss;
+
+ ss.Printf("set%c%s:",
+ toupper(prop_name[0]),
+ &prop_name[1]);
+
+ fixed_setter.SetCString(ss.GetData());
+ prop_setter_name = fixed_setter.GetCString();
+ }
+ }
+
+ // Clang has a DWARF generation bug where sometimes it
+ // represents fields that are references with bad byte size
+ // and bit size/offset information such as:
+ //
+ // DW_AT_byte_size( 0x00 )
+ // DW_AT_bit_size( 0x40 )
+ // DW_AT_bit_offset( 0xffffffffffffffc0 )
+ //
+ // So check the bit offset to make sure it is sane, and if
+ // the values are not sane, remove them. If we don't do this
+ // then we will end up with a crash if we try to use this
+ // type in an expression when clang becomes unhappy with its
+ // recycled debug info.
+
+ if (bit_offset > 128)
+ {
+ bit_size = 0;
+ bit_offset = 0;
+ }
+
+ // FIXME: Make Clang ignore Objective-C accessibility for expressions
+ if (class_language == eLanguageTypeObjC ||
+ class_language == eLanguageTypeObjC_plus_plus)
+ accessibility = eAccessNone;
+
+ if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name))
+ {
+ // Not all compilers will mark the vtable pointer
+ // member as artificial (llvm-gcc). We can't have
+ // the virtual members in our classes otherwise it
+ // throws off all child offsets since we end up
+ // having and extra pointer sized member in our
+ // class layouts.
+ is_artificial = true;
+ }
+
+ // Handle static members
+ if (is_external && member_byte_offset == UINT32_MAX)
+ {
+ Type *var_type = dwarf->ResolveTypeUID(encoding_uid);
+
+ if (var_type)
+ {
+ if (accessibility == eAccessNone)
+ accessibility = eAccessPublic;
+ ClangASTContext::AddVariableToRecordType (class_clang_type,
+ name,
+ var_type->GetClangLayoutType(),
+ accessibility);
+ }
+ break;
+ }
+
+ if (is_artificial == false)
+ {
+ Type *member_type = dwarf->ResolveTypeUID(encoding_uid);
+
+ clang::FieldDecl *field_decl = NULL;
+ if (tag == DW_TAG_member)
+ {
+ if (member_type)
+ {
+ if (accessibility == eAccessNone)
+ accessibility = default_accessibility;
+ member_accessibilities.push_back(accessibility);
+
+ uint64_t field_bit_offset = (member_byte_offset == UINT32_MAX ? 0 : (member_byte_offset * 8));
+ if (bit_size > 0)
+ {
+
+ BitfieldInfo this_field_info;
+ this_field_info.bit_offset = field_bit_offset;
+ this_field_info.bit_size = bit_size;
+
+ /////////////////////////////////////////////////////////////
+ // How to locate a field given the DWARF debug information
+ //
+ // AT_byte_size indicates the size of the word in which the
+ // bit offset must be interpreted.
+ //
+ // AT_data_member_location indicates the byte offset of the
+ // word from the base address of the structure.
+ //
+ // AT_bit_offset indicates how many bits into the word
+ // (according to the host endianness) the low-order bit of
+ // the field starts. AT_bit_offset can be negative.
+ //
+ // AT_bit_size indicates the size of the field in bits.
+ /////////////////////////////////////////////////////////////
+
+ if (byte_size == 0)
+ byte_size = member_type->GetByteSize();
+
+ if (dwarf->GetObjectFile()->GetByteOrder() == eByteOrderLittle)
+ {
+ this_field_info.bit_offset += byte_size * 8;
+ this_field_info.bit_offset -= (bit_offset + bit_size);
+ }
+ else
+ {
+ this_field_info.bit_offset += bit_offset;
+ }
+
+ // Update the field bit offset we will report for layout
+ field_bit_offset = this_field_info.bit_offset;
+
+ // If the member to be emitted did not start on a character boundary and there is
+ // empty space between the last field and this one, then we need to emit an
+ // anonymous member filling up the space up to its start. There are three cases
+ // here:
+ //
+ // 1 If the previous member ended on a character boundary, then we can emit an
+ // anonymous member starting at the most recent character boundary.
+ //
+ // 2 If the previous member did not end on a character boundary and the distance
+ // from the end of the previous member to the current member is less than a
+ // word width, then we can emit an anonymous member starting right after the
+ // previous member and right before this member.
+ //
+ // 3 If the previous member did not end on a character boundary and the distance
+ // from the end of the previous member to the current member is greater than
+ // or equal a word width, then we act as in Case 1.
+
+ const uint64_t character_width = 8;
+ const uint64_t word_width = 32;
+
+ // Objective-C has invalid DW_AT_bit_offset values in older versions
+ // of clang, so we have to be careful and only insert unnamed bitfields
+ // if we have a new enough clang.
+ bool detect_unnamed_bitfields = true;
+
+ if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus)
+ detect_unnamed_bitfields = dwarf_cu->Supports_unnamed_objc_bitfields ();
+
+ if (detect_unnamed_bitfields)
+ {
+ BitfieldInfo anon_field_info;
+
+ if ((this_field_info.bit_offset % character_width) != 0) // not char aligned
+ {
+ uint64_t last_field_end = 0;
+
+ if (last_field_info.IsValid())
+ last_field_end = last_field_info.bit_offset + last_field_info.bit_size;
+
+ if (this_field_info.bit_offset != last_field_end)
+ {
+ if (((last_field_end % character_width) == 0) || // case 1
+ (this_field_info.bit_offset - last_field_end >= word_width)) // case 3
+ {
+ anon_field_info.bit_size = this_field_info.bit_offset % character_width;
+ anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size;
+ }
+ else // case 2
+ {
+ anon_field_info.bit_size = this_field_info.bit_offset - last_field_end;
+ anon_field_info.bit_offset = last_field_end;
+ }
+ }
+ }
+
+ if (anon_field_info.IsValid())
+ {
+ clang::FieldDecl *unnamed_bitfield_decl =
+ ClangASTContext::AddFieldToRecordType (class_clang_type,
+ NULL,
+ GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width),
+ accessibility,
+ anon_field_info.bit_size);
+
+ layout_info.field_offsets.insert(
+ std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset));
+ }
+ }
+ last_field_info = this_field_info;
+ }
+ else
+ {
+ last_field_info.Clear();
+ }
+
+ CompilerType member_clang_type = member_type->GetClangLayoutType();
+
+ {
+ // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>).
+ // If the current field is at the end of the structure, then there is definitely no room for extra
+ // elements and we override the type to array[0].
+
+ CompilerType member_array_element_type;
+ uint64_t member_array_size;
+ bool member_array_is_incomplete;
+
+ if (member_clang_type.IsArrayType(&member_array_element_type,
+ &member_array_size,
+ &member_array_is_incomplete) &&
+ !member_array_is_incomplete)
+ {
+ uint64_t parent_byte_size = parent_die->GetAttributeValueAsUnsigned(dwarf, dwarf_cu, DW_AT_byte_size, UINT64_MAX);
+
+ if (member_byte_offset >= parent_byte_size)
+ {
+ if (member_array_size != 1)
+ {
+ module_sp->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which extends beyond the bounds of 0x%8.8" PRIx64,
+ dwarf->MakeUserID(die->GetOffset()),
+ name,
+ encoding_uid,
+ dwarf->MakeUserID(parent_die->GetOffset()));
+ }
+
+ member_clang_type = CreateArrayType(member_array_element_type, 0, false);
+ }
+ }
+ }
+
+ field_decl = ClangASTContext::AddFieldToRecordType (class_clang_type,
+ name,
+ member_clang_type,
+ accessibility,
+ bit_size);
+
+ SetMetadataAsUserID (field_decl, dwarf->MakeUserID(die->GetOffset()));
+
+ layout_info.field_offsets.insert(std::make_pair(field_decl, field_bit_offset));
+ }
+ else
+ {
+ if (name)
+ module_sp->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
+ dwarf->MakeUserID(die->GetOffset()),
+ name,
+ encoding_uid);
+ else
+ module_sp->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
+ dwarf->MakeUserID(die->GetOffset()),
+ encoding_uid);
+ }
+ }
+
+ if (prop_name != NULL && member_type)
+ {
+ clang::ObjCIvarDecl *ivar_decl = NULL;
+
+ if (field_decl)
+ {
+ ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl);
+ assert (ivar_decl != NULL);
+ }
+
+ ClangASTMetadata metadata;
+ metadata.SetUserID (dwarf->MakeUserID(die->GetOffset()));
+ delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type,
+ prop_name,
+ member_type->GetClangLayoutType(),
+ ivar_decl,
+ prop_setter_name,
+ prop_getter_name,
+ prop_attributes,
+ &metadata));
+
+ if (ivar_decl)
+ SetMetadataAsUserID (ivar_decl, dwarf->MakeUserID(die->GetOffset()));
+ }
+ }
+ }
+ ++member_idx;
+ }
+ break;
+
+ case DW_TAG_subprogram:
+ // Let the type parsing code handle this one for us.
+ member_function_dies.Append (die);
+ break;
+
+ case DW_TAG_inheritance:
+ {
+ is_a_class = true;
+ if (default_accessibility == eAccessNone)
+ default_accessibility = eAccessPrivate;
+ // TODO: implement DW_TAG_inheritance type parsing
+ DWARFDebugInfoEntry::Attributes attributes;
+ const size_t num_attributes = die->GetAttributes (dwarf,
+ dwarf_cu,
+ fixed_form_sizes,
+ attributes);
+ if (num_attributes > 0)
+ {
+ Declaration decl;
+ DWARFExpression location;
+ lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
+ AccessType accessibility = default_accessibility;
+ bool is_virtual = false;
+ bool is_base_of_class = true;
+ off_t member_byte_offset = 0;
+ uint32_t i;
+ for (i=0; i<num_attributes; ++i)
+ {
+ const dw_attr_t attr = attributes.AttributeAtIndex(i);
+ DWARFFormValue form_value;
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_type: encoding_uid = form_value.Reference(); break;
+ case DW_AT_data_member_location:
+ if (form_value.BlockData())
+ {
+ Value initialValue(0);
+ Value memberOffset(0);
+ const DWARFDataExtractor& debug_info_data = dwarf->get_debug_info_data();
+ uint32_t block_length = form_value.Unsigned();
+ uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
+ if (DWARFExpression::Evaluate (NULL,
+ NULL,
+ NULL,
+ NULL,
+ module_sp,
+ debug_info_data,
+ block_offset,
+ block_length,
+ eRegisterKindDWARF,
+ &initialValue,
+ memberOffset,
+ NULL))
+ {
+ member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
+ }
+ }
+ else
+ {
+ // With DWARF 3 and later, if the value is an integer constant,
+ // this form value is the offset in bytes from the beginning
+ // of the containing entity.
+ member_byte_offset = form_value.Unsigned();
+ }
+ break;
+
+ case DW_AT_accessibility:
+ accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
+ break;
+
+ case DW_AT_virtuality:
+ is_virtual = form_value.Boolean();
+ break;
+
+ case DW_AT_sibling:
+ break;
+
+ default:
+ break;
+ }
+ }
+ }
+
+ Type *base_class_type = dwarf->ResolveTypeUID(encoding_uid);
+ if (base_class_type == NULL)
+ {
+ module_sp->ReportError("0x%8.8x: DW_TAG_inheritance failed to resolve the base class at 0x%8.8" PRIx64 " from enclosing type 0x%8.8x. \nPlease file a bug and attach the file at the start of this error message",
+ die->GetOffset(),
+ encoding_uid,
+ parent_die->GetOffset());
+ break;
+ }
+
+ CompilerType base_class_clang_type = base_class_type->GetClangFullType();
+ assert (base_class_clang_type);
+ if (class_language == eLanguageTypeObjC)
+ {
+ ast->SetObjCSuperClass(class_clang_type, base_class_clang_type);
+ }
+ else
+ {
+ base_classes.push_back (ast->CreateBaseClassSpecifier (base_class_clang_type.GetOpaqueQualType(),
+ accessibility,
+ is_virtual,
+ is_base_of_class));
+
+ if (is_virtual)
+ {
+ // Do not specify any offset for virtual inheritance. The DWARF produced by clang doesn't
+ // give us a constant offset, but gives us a DWARF expressions that requires an actual object
+ // in memory. the DW_AT_data_member_location for a virtual base class looks like:
+ // DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, DW_OP_plus )
+ // Given this, there is really no valid response we can give to clang for virtual base
+ // class offsets, and this should eventually be removed from LayoutRecordType() in the external
+ // AST source in clang.
+ }
+ else
+ {
+ layout_info.base_offsets.insert(
+ std::make_pair(ast->GetAsCXXRecordDecl(base_class_clang_type.GetOpaqueQualType()),
+ clang::CharUnits::fromQuantity(member_byte_offset)));
+ }
+ }
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return count;
+}
+
+
+size_t
+ClangASTContext::ParseChildParameters (const SymbolContext& sc,
+ clang::DeclContext *containing_decl_ctx,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die,
+ bool skip_artificial,
+ bool &is_static,
+ bool &is_variadic,
+ std::vector<CompilerType>& function_param_types,
+ std::vector<clang::ParmVarDecl*>& function_param_decls,
+ unsigned &type_quals)
+{
+ if (parent_die == NULL)
+ return 0;
+
+ const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
+
+ size_t arg_idx = 0;
+ const DWARFDebugInfoEntry *die;
+ for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+ {
+ dw_tag_t tag = die->Tag();
+ switch (tag)
+ {
+ case DW_TAG_formal_parameter:
+ {
+ DWARFDebugInfoEntry::Attributes attributes;
+ const size_t num_attributes = die->GetAttributes(dwarf, dwarf_cu, fixed_form_sizes, attributes);
+ if (num_attributes > 0)
+ {
+ const char *name = NULL;
+ Declaration decl;
+ dw_offset_t param_type_die_offset = DW_INVALID_OFFSET;
+ bool is_artificial = false;
+ // one of None, Auto, Register, Extern, Static, PrivateExtern
+
+ clang::StorageClass storage = clang::SC_None;
+ uint32_t i;
+ for (i=0; i<num_attributes; ++i)
+ {
+ const dw_attr_t attr = attributes.AttributeAtIndex(i);
+ DWARFFormValue form_value;
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_name: name = form_value.AsCString(&dwarf->get_debug_str_data()); break;
+ case DW_AT_type: param_type_die_offset = form_value.Reference(); break;
+ case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
+ case DW_AT_location:
+ // if (form_value.BlockData())
+ // {
+ // const DWARFDataExtractor& debug_info_data = debug_info();
+ // uint32_t block_length = form_value.Unsigned();
+ // DWARFDataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length);
+ // }
+ // else
+ // {
+ // }
+ // break;
+ case DW_AT_const_value:
+ case DW_AT_default_value:
+ case DW_AT_description:
+ case DW_AT_endianity:
+ case DW_AT_is_optional:
+ case DW_AT_segment:
+ case DW_AT_variable_parameter:
+ default:
+ case DW_AT_abstract_origin:
+ case DW_AT_sibling:
+ break;
+ }
+ }
+ }
+
+ bool skip = false;
+ if (skip_artificial)
+ {
+ if (is_artificial)
+ {
+ // In order to determine if a C++ member function is
+ // "const" we have to look at the const-ness of "this"...
+ // Ugly, but that
+ if (arg_idx == 0)
+ {
+ if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()))
+ {
+ // Often times compilers omit the "this" name for the
+ // specification DIEs, so we can't rely upon the name
+ // being in the formal parameter DIE...
+ if (name == NULL || ::strcmp(name, "this")==0)
+ {
+ Type *this_type = dwarf->ResolveTypeUID (param_type_die_offset);
+ if (this_type)
+ {
+ uint32_t encoding_mask = this_type->GetEncodingMask();
+ if (encoding_mask & Type::eEncodingIsPointerUID)
+ {
+ is_static = false;
+
+ if (encoding_mask & (1u << Type::eEncodingIsConstUID))
+ type_quals |= clang::Qualifiers::Const;
+ if (encoding_mask & (1u << Type::eEncodingIsVolatileUID))
+ type_quals |= clang::Qualifiers::Volatile;
+ }
+ }
+ }
+ }
+ }
+ skip = true;
+ }
+ else
+ {
+
+ // HACK: Objective C formal parameters "self" and "_cmd"
+ // are not marked as artificial in the DWARF...
+ CompileUnit *comp_unit = dwarf->GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
+ if (comp_unit)
+ {
+ switch (comp_unit->GetLanguage())
+ {
+ case eLanguageTypeObjC:
+ case eLanguageTypeObjC_plus_plus:
+ if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0))
+ skip = true;
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ }
+
+ if (!skip)
+ {
+ Type *type = dwarf->ResolveTypeUID(param_type_die_offset);
+ if (type)
+ {
+ function_param_types.push_back (type->GetClangForwardType());
+
+ clang::ParmVarDecl *param_var_decl = CreateParameterDeclaration (name,
+ type->GetClangForwardType(),
+ storage);
+ assert(param_var_decl);
+ function_param_decls.push_back(param_var_decl);
+
+ SetMetadataAsUserID (param_var_decl, dwarf->MakeUserID(die->GetOffset()));
+ }
+ }
+ }
+ arg_idx++;
+ }
+ break;
+
+ case DW_TAG_unspecified_parameters:
+ is_variadic = true;
+ break;
+
+ case DW_TAG_template_type_parameter:
+ case DW_TAG_template_value_parameter:
+ // The one caller of this was never using the template_param_infos,
+ // and the local variable was taking up a large amount of stack space
+ // in SymbolFileDWARF::ParseType() so this was removed. If we ever need
+ // the template params back, we can add them back.
+ // ParseTemplateDIE (dwarf_cu, die, template_param_infos);
+ break;
+
+ default:
+ break;
+ }
+ }
+ return arg_idx;
+}
+
+void
+ClangASTContext::ParseChildArrayInfo (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *parent_die,
+ int64_t& first_index,
+ std::vector<uint64_t>& element_orders,
+ uint32_t& byte_stride,
+ uint32_t& bit_stride)
+{
+ if (parent_die == NULL)
+ return;
+
+ const DWARFDebugInfoEntry *die;
+ const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
+ for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+ {
+ const dw_tag_t tag = die->Tag();
+ switch (tag)
+ {
+ case DW_TAG_subrange_type:
+ {
+ DWARFDebugInfoEntry::Attributes attributes;
+ const size_t num_child_attributes = die->GetAttributes(dwarf, dwarf_cu, fixed_form_sizes, attributes);
+ if (num_child_attributes > 0)
+ {
+ uint64_t num_elements = 0;
+ uint64_t lower_bound = 0;
+ uint64_t upper_bound = 0;
+ bool upper_bound_valid = false;
+ uint32_t i;
+ for (i=0; i<num_child_attributes; ++i)
+ {
+ const dw_attr_t attr = attributes.AttributeAtIndex(i);
+ DWARFFormValue form_value;
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_name:
+ break;
+
+ case DW_AT_count:
+ num_elements = form_value.Unsigned();
+ break;
+
+ case DW_AT_bit_stride:
+ bit_stride = form_value.Unsigned();
+ break;
+
+ case DW_AT_byte_stride:
+ byte_stride = form_value.Unsigned();
+ break;
+
+ case DW_AT_lower_bound:
+ lower_bound = form_value.Unsigned();
+ break;
+
+ case DW_AT_upper_bound:
+ upper_bound_valid = true;
+ upper_bound = form_value.Unsigned();
+ break;
+
+ default:
+ case DW_AT_abstract_origin:
+ case DW_AT_accessibility:
+ case DW_AT_allocated:
+ case DW_AT_associated:
+ case DW_AT_data_location:
+ case DW_AT_declaration:
+ case DW_AT_description:
+ case DW_AT_sibling:
+ case DW_AT_threads_scaled:
+ case DW_AT_type:
+ case DW_AT_visibility:
+ break;
+ }
+ }
+ }
+
+ if (num_elements == 0)
+ {
+ if (upper_bound_valid && upper_bound >= lower_bound)
+ num_elements = upper_bound - lower_bound + 1;
+ }
+
+ element_orders.push_back (num_elements);
+ }
+ }
+ break;
+ }
+ }
+}
+
+clang::DeclContext*
+ClangASTContext::GetClangDeclContextContainingTypeUID (SymbolFileDWARF *dwarf, lldb::user_id_t type_uid)
+{
+ DWARFDebugInfo* debug_info = dwarf->DebugInfo();
+ if (debug_info && dwarf->UserIDMatches(type_uid))
+ {
+ DWARFCompileUnitSP cu_sp;
+ const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp);
+ if (die)
+ return GetClangDeclContextContainingDIE (dwarf, cu_sp.get(), die, NULL);
+ }
+ return NULL;
+}
+
+clang::DeclContext*
+ClangASTContext::GetClangDeclContextForTypeUID (SymbolFileDWARF *dwarf, const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
+{
+ if (dwarf->UserIDMatches(type_uid))
+ return GetClangDeclContextForDIEOffset (dwarf, sc, type_uid);
+ return NULL;
+}
+
+
+clang::DeclContext *
+ClangASTContext::GetClangDeclContextForDIE (SymbolFileDWARF *dwarf,
+ const SymbolContext &sc,
+ DWARFCompileUnit *cu,
+ const DWARFDebugInfoEntry *die)
+{
+ clang::DeclContext *clang_decl_ctx = dwarf->GetCachedClangDeclContextForDIE (die);
+ if (clang_decl_ctx)
+ return clang_decl_ctx;
+ // If this DIE has a specification, or an abstract origin, then trace to those.
+
+ dw_offset_t die_offset = die->GetAttributeValueAsReference(dwarf, cu, DW_AT_specification, DW_INVALID_OFFSET);
+ if (die_offset != DW_INVALID_OFFSET)
+ return GetClangDeclContextForDIEOffset (dwarf, sc, die_offset);
+
+ die_offset = die->GetAttributeValueAsReference(dwarf, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
+ if (die_offset != DW_INVALID_OFFSET)
+ return GetClangDeclContextForDIEOffset (dwarf, sc, die_offset);
+
+ Log *log = nullptr; //(LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
+ if (log)
+ dwarf->GetObjectFile()->GetModule()->LogMessage(log, "SymbolFileDWARF::GetClangDeclContextForDIE (die = 0x%8.8x) %s '%s'", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), die->GetName(dwarf, cu));
+ // This is the DIE we want. Parse it, then query our map.
+ bool assert_not_being_parsed = true;
+ dwarf->ResolveTypeUID (cu, die, assert_not_being_parsed);
+
+ clang_decl_ctx = dwarf->GetCachedClangDeclContextForDIE (die);
+
+ return clang_decl_ctx;
+}
+
+
+clang::DeclContext *
+ClangASTContext::GetClangDeclContextContainingDIEOffset (SymbolFileDWARF *dwarf,
+ dw_offset_t die_offset)
+{
+ if (die_offset != DW_INVALID_OFFSET)
+ {
+ DWARFCompileUnitSP cu_sp;
+ const DWARFDebugInfoEntry* die = dwarf->DebugInfo()->GetDIEPtr(die_offset, &cu_sp);
+ return GetClangDeclContextContainingDIE (dwarf, cu_sp.get(), die, NULL);
+ }
+ return NULL;
+}
+
+clang::DeclContext *
+ClangASTContext::GetClangDeclContextForDIEOffset (SymbolFileDWARF *dwarf,
+ const SymbolContext &sc,
+ dw_offset_t die_offset)
+{
+ if (die_offset != DW_INVALID_OFFSET)
+ {
+ DWARFDebugInfo* debug_info = dwarf->DebugInfo();
+ if (debug_info)
+ {
+ DWARFCompileUnitSP cu_sp;
+ const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(die_offset, &cu_sp);
+ if (die)
+ return GetClangDeclContextForDIE (dwarf, sc, cu_sp.get(), die);
+ }
+ }
+ return NULL;
+}
+
+clang::NamespaceDecl *
+ClangASTContext::ResolveNamespaceDIE (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *dwarf_cu,
+ const DWARFDebugInfoEntry *die)
+{
+ if (die && die->Tag() == DW_TAG_namespace)
+ {
+ // See if we already parsed this namespace DIE and associated it with a
+ // uniqued namespace declaration
+ clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(dwarf->m_die_to_decl_ctx[die]);
+ if (namespace_decl)
+ return namespace_decl;
+ else
+ {
+ const char *namespace_name = die->GetAttributeValueAsString(dwarf, dwarf_cu, DW_AT_name, NULL);
+ clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf, dwarf_cu, die, NULL);
+ namespace_decl = GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx);
+ Log *log = nullptr;// (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
+ if (log)
+ {
+ if (namespace_name)
+ {
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+ "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)",
+ static_cast<void*>(getASTContext()),
+ dwarf->MakeUserID(die->GetOffset()),
+ namespace_name,
+ static_cast<void*>(namespace_decl),
+ static_cast<void*>(namespace_decl->getOriginalNamespace()));
+ }
+ else
+ {
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+ "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)",
+ static_cast<void*>(getASTContext()),
+ dwarf->MakeUserID(die->GetOffset()),
+ static_cast<void*>(namespace_decl),
+ static_cast<void*>(namespace_decl->getOriginalNamespace()));
+ }
+ }
+
+ if (namespace_decl)
+ dwarf->LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die);
+ return namespace_decl;
+ }
+ }
+ return NULL;
+}
+
+clang::DeclContext *
+ClangASTContext::GetClangDeclContextContainingDIE (SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *cu,
+ const DWARFDebugInfoEntry *die,
+ const DWARFDebugInfoEntry **decl_ctx_die_copy)
+{
+ if (dwarf->m_clang_tu_decl == NULL)
+ dwarf->m_clang_tu_decl = getASTContext()->getTranslationUnitDecl();
+
+ const DWARFDebugInfoEntry *decl_ctx_die = dwarf->GetDeclContextDIEContainingDIE (cu, die);
+
+ if (decl_ctx_die_copy)
+ *decl_ctx_die_copy = decl_ctx_die;
+
+ if (decl_ctx_die)
+ {
+
+ SymbolFileDWARF::DIEToDeclContextMap::iterator pos = dwarf->m_die_to_decl_ctx.find (decl_ctx_die);
+ if (pos != dwarf->m_die_to_decl_ctx.end())
+ return pos->second;
+
+ switch (decl_ctx_die->Tag())
+ {
+ case DW_TAG_compile_unit:
+ return dwarf->m_clang_tu_decl;
+
+ case DW_TAG_namespace:
+ return ResolveNamespaceDIE (dwarf, cu, decl_ctx_die);
+
+ case DW_TAG_structure_type:
+ case DW_TAG_union_type:
+ case DW_TAG_class_type:
+ {
+ Type* type = dwarf->ResolveType (cu, decl_ctx_die);
+ if (type)
+ {
+ clang::DeclContext *decl_ctx = GetDeclContextForType(type->GetClangForwardType());
+ if (decl_ctx)
+ {
+ dwarf->LinkDeclContextToDIE (decl_ctx, decl_ctx_die);
+ if (decl_ctx)
+ return decl_ctx;
+ }
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ return dwarf->m_clang_tu_decl;
+}
+
+
+
+TypeSP
+ClangASTContext::ParseTypeFromDWARF (const SymbolContext& sc,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit* dwarf_cu,
+ const DWARFDebugInfoEntry *die,
+ Log *log,
+ bool *type_is_new_ptr)
+{
+ TypeSP type_sp;
+
+ if (type_is_new_ptr)
+ *type_is_new_ptr = false;
+
+#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
+ static DIEStack g_die_stack;
+ DIEStack::ScopedPopper scoped_die_logger(g_die_stack);
+#endif
+
+ AccessType accessibility = eAccessNone;
+ if (die != NULL)
+ {
+ if (log)
+ {
+ const DWARFDebugInfoEntry *context_die;
+ clang::DeclContext *context = GetClangDeclContextContainingDIE (dwarf, dwarf_cu, die, &context_die);
+
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')",
+ die->GetOffset(),
+ static_cast<void*>(context),
+ context_die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ die->GetName(dwarf, dwarf_cu));
+
+#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
+ scoped_die_logger.Push (dwarf_cu, die);
+ g_die_stack.LogDIEs(log, dwarf);
+#endif
+ }
+ //
+ // Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
+ // if (log && dwarf_cu)
+ // {
+ // StreamString s;
+ // die->DumpLocation (this, dwarf_cu, s);
+ // dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData());
+ //
+ // }
+
+ Type *type_ptr = dwarf->m_die_to_type.lookup (die);
+ 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;
+ DWARFDebugInfoEntry::Attributes attributes;
+ const char *type_name_cstr = NULL;
+ ConstString type_name_const_str;
+ Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
+ uint64_t byte_size = 0;
+ Declaration decl;
+
+ Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
+ CompilerType clang_type;
+ DWARFFormValue form_value;
+
+ dw_attr_t attr;
+
+ switch (tag)
+ {
+ case DW_TAG_base_type:
+ case DW_TAG_pointer_type:
+ case DW_TAG_reference_type:
+ case DW_TAG_rvalue_reference_type:
+ case DW_TAG_typedef:
+ case DW_TAG_const_type:
+ case DW_TAG_restrict_type:
+ case DW_TAG_volatile_type:
+ case DW_TAG_unspecified_type:
+ {
+ // Set a bit that lets us know that we are currently parsing this
+ dwarf->m_die_to_type[die] = DIE_IS_BEING_PARSED;
+
+ const size_t num_attributes = die->GetAttributes(dwarf, dwarf_cu, NULL, attributes);
+ uint32_t encoding = 0;
+ 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(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_name:
+
+ type_name_cstr = form_value.AsCString(&dwarf->get_debug_str_data());
+ // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't
+ // include the "&"...
+ if (tag == DW_TAG_reference_type)
+ {
+ if (strchr (type_name_cstr, '&') == NULL)
+ type_name_cstr = NULL;
+ }
+ 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: encoding = form_value.Unsigned(); break;
+ case DW_AT_type: encoding_uid = form_value.Reference(); break;
+ default:
+ case DW_AT_sibling:
+ 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:
+ if (strcmp(type_name_cstr, "nullptr_t") == 0 ||
+ strcmp(type_name_cstr, "decltype(nullptr)") == 0 )
+ {
+ resolve_state = Type::eResolveStateFull;
+ clang_type = GetBasicType(eBasicTypeNullPtr);
+ break;
+ }
+ // Fall through to base type below in case we can handle the type there...
+
+ case DW_TAG_base_type:
+ resolve_state = Type::eResolveStateFull;
+ clang_type = GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr,
+ encoding,
+ byte_size * 8);
+ break;
+
+ case DW_TAG_pointer_type: encoding_data_type = Type::eEncodingIsPointerUID; break;
+ case DW_TAG_reference_type: encoding_data_type = Type::eEncodingIsLValueReferenceUID; break;
+ case DW_TAG_rvalue_reference_type: encoding_data_type = Type::eEncodingIsRValueReferenceUID; break;
+ case DW_TAG_typedef: encoding_data_type = Type::eEncodingIsTypedefUID; break;
+ case DW_TAG_const_type: encoding_data_type = Type::eEncodingIsConstUID; break;
+ case DW_TAG_restrict_type: encoding_data_type = Type::eEncodingIsRestrictUID; break;
+ case DW_TAG_volatile_type: encoding_data_type = Type::eEncodingIsVolatileUID; break;
+ }
+
+ if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL)
+ {
+ bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus);
+
+ if (translation_unit_is_objc)
+ {
+ if (type_name_cstr != NULL)
+ {
+ static ConstString g_objc_type_name_id("id");
+ static ConstString g_objc_type_name_Class("Class");
+ static ConstString g_objc_type_name_selector("SEL");
+
+ if (type_name_const_str == g_objc_type_name_id)
+ {
+ if (log)
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.",
+ die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ die->GetName(dwarf, dwarf_cu));
+ clang_type = GetBasicType(eBasicTypeObjCID);
+ encoding_data_type = Type::eEncodingIsUID;
+ encoding_uid = LLDB_INVALID_UID;
+ resolve_state = Type::eResolveStateFull;
+
+ }
+ else if (type_name_const_str == g_objc_type_name_Class)
+ {
+ if (log)
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.",
+ die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ die->GetName(dwarf, dwarf_cu));
+ clang_type = GetBasicType(eBasicTypeObjCClass);
+ encoding_data_type = Type::eEncodingIsUID;
+ encoding_uid = LLDB_INVALID_UID;
+ resolve_state = Type::eResolveStateFull;
+ }
+ else if (type_name_const_str == g_objc_type_name_selector)
+ {
+ if (log)
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.",
+ die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ die->GetName(dwarf, dwarf_cu));
+ clang_type = GetBasicType(eBasicTypeObjCSel);
+ encoding_data_type = Type::eEncodingIsUID;
+ encoding_uid = LLDB_INVALID_UID;
+ resolve_state = Type::eResolveStateFull;
+ }
+ }
+ else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID)
+ {
+ // Clang sometimes erroneously emits id as objc_object*. In that case we fix up the type to "id".
+
+ DWARFDebugInfoEntry* encoding_die = dwarf_cu->GetDIEPtr(encoding_uid);
+
+ if (encoding_die && encoding_die->Tag() == DW_TAG_structure_type)
+ {
+ if (const char *struct_name = encoding_die->GetAttributeValueAsString(dwarf, dwarf_cu, DW_AT_name, NULL))
+ {
+ if (!strcmp(struct_name, "objc_object"))
+ {
+ if (log)
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.",
+ die->GetOffset(),
+ DW_TAG_value_to_name(die->Tag()),
+ die->GetName(dwarf, dwarf_cu));
+ clang_type = GetBasicType(eBasicTypeObjCID);
+ encoding_data_type = Type::eEncodingIsUID;
+ encoding_uid = LLDB_INVALID_UID;
+ resolve_state = Type::eResolveStateFull;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ type_sp.reset( new Type (dwarf->MakeUserID(die->GetOffset()),
+ dwarf,
+ type_name_const_str,
+ byte_size,
+ NULL,
+ encoding_uid,
+ encoding_data_type,
+ &decl,
+ clang_type,
+ resolve_state));
+
+ dwarf->m_die_to_type[die] = type_sp.get();
+
+ // Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false);
+ // if (encoding_type != NULL)
+ // {
+ // if (encoding_type != DIE_IS_BEING_PARSED)
+ // type_sp->SetEncodingType(encoding_type);
+ // else
+ // m_indirect_fixups.push_back(type_sp.get());
+ // }
+ }
+ break;
+
+ case DW_TAG_structure_type:
+ case DW_TAG_union_type:
+ case DW_TAG_class_type:
+ {
+ // Set a bit that lets us know that we are currently parsing this
+ dwarf->m_die_to_type[die] = DIE_IS_BEING_PARSED;
+ bool byte_size_valid = false;
+
+ LanguageType class_language = eLanguageTypeUnknown;
+ bool is_complete_objc_class = false;
+ //bool struct_is_class = false;
+ const size_t num_attributes = die->GetAttributes(dwarf, dwarf_cu, NULL, attributes);
+ if (num_attributes > 0)
+ {
+ uint32_t i;
+ for (i=0; i<num_attributes; ++i)
+ {
+ attr = attributes.AttributeAtIndex(i);
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file:
+ if (dwarf_cu->DW_AT_decl_file_attributes_are_invalid())
+ {
+ // llvm-gcc outputs invalid DW_AT_decl_file attributes that always
+ // point to the compile unit file, so we clear this invalid value
+ // so that we can still unique types efficiently.
+ decl.SetFile(FileSpec ("<invalid>", false));
+ }
+ else
+ decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned()));
+ break;
+
+ case DW_AT_decl_line:
+ decl.SetLine(form_value.Unsigned());
+ break;
+
+ case DW_AT_decl_column:
+ decl.SetColumn(form_value.Unsigned());
+ break;
+
+ case DW_AT_name:
+ type_name_cstr = form_value.AsCString(&dwarf->get_debug_str_data());
+ 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_accessibility:
+ accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
+ break;
+
+ case DW_AT_declaration:
+ is_forward_declaration = form_value.Boolean();
+ break;
+
+ case DW_AT_APPLE_runtime_class:
+ class_language = (LanguageType)form_value.Signed();
+ break;
+
+ case DW_AT_APPLE_objc_complete_type:
+ is_complete_objc_class = form_value.Signed();
+ break;
+
+ case DW_AT_allocated:
+ case DW_AT_associated:
+ case DW_AT_data_location:
+ case DW_AT_description:
+ case DW_AT_start_scope:
+ case DW_AT_visibility:
+ default:
+ case DW_AT_sibling:
+ break;
+ }
+ }
+ }
+ }
+
+ // 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,
+ dwarf,
+ dwarf_cu,
+ 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] = 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);
+
+ int tag_decl_kind = -1;
+ AccessType default_accessibility = eAccessNone;
+ if (tag == DW_TAG_structure_type)
+ {
+ tag_decl_kind = clang::TTK_Struct;
+ default_accessibility = eAccessPublic;
+ }
+ else if (tag == DW_TAG_union_type)
+ {
+ tag_decl_kind = clang::TTK_Union;
+ default_accessibility = eAccessPublic;
+ }
+ else if (tag == DW_TAG_class_type)
+ {
+ tag_decl_kind = clang::TTK_Class;
+ default_accessibility = eAccessPrivate;
+ }
+
+ if (byte_size_valid && byte_size == 0 && type_name_cstr &&
+ die->HasChildren() == false &&
+ sc.comp_unit->GetLanguage() == eLanguageTypeObjC)
+ {
+ // Work around an issue with clang at the moment where
+ // forward declarations for objective C classes are emitted
+ // as:
+ // DW_TAG_structure_type [2]
+ // DW_AT_name( "ForwardObjcClass" )
+ // DW_AT_byte_size( 0x00 )
+ // DW_AT_decl_file( "..." )
+ // DW_AT_decl_line( 1 )
+ //
+ // Note that there is no DW_AT_declaration and there are
+ // no children, and the byte size is zero.
+ is_forward_declaration = true;
+ }
+
+ if (class_language == eLanguageTypeObjC ||
+ class_language == eLanguageTypeObjC_plus_plus)
+ {
+ if (!is_complete_objc_class && dwarf->Supports_DW_AT_APPLE_objc_complete_type(dwarf_cu))
+ {
+ // We have a valid eSymbolTypeObjCClass class symbol whose
+ // name matches the current objective C class that we
+ // are trying to find and this DIE isn't the complete
+ // definition (we checked is_complete_objc_class above and
+ // know it is false), so the real definition is in here somewhere
+ type_sp = dwarf->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
+
+ if (!type_sp)
+ {
+ SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile();
+ if (debug_map_symfile)
+ {
+ // We weren't able to find a full declaration in
+ // this DWARF, see if we have a declaration anywhere
+ // else...
+ type_sp = debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
+ }
+ }
+
+ if (type_sp)
+ {
+ if (log)
+ {
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64,
+ static_cast<void*>(this),
+ die->GetOffset(),
+ DW_TAG_value_to_name(tag),
+ type_name_cstr,
+ type_sp->GetID());
+ }
+
+ // We found a real definition for this type elsewhere
+ // so lets use it and cache the fact that we found
+ // a complete type for this die
+ dwarf->m_die_to_type[die] = type_sp.get();
+ return type_sp;
+ }
+ }
+ }
+
+
+ if (is_forward_declaration)
+ {
+ // We have a forward declaration to a type and we need
+ // to try and find a full declaration. We look in the
+ // current type index just in case we have a forward
+ // declaration followed by an actual declarations in the
+ // DWARF. If this fails, we need to look elsewhere...
+ if (log)
+ {
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type",
+ static_cast<void*>(this),
+ die->GetOffset(),
+ DW_TAG_value_to_name(tag),
+ type_name_cstr);
+ }
+
+ DWARFDeclContext die_decl_ctx;
+ die->GetDWARFDeclContext(dwarf, dwarf_cu, die_decl_ctx);
+
+ //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str);
+ type_sp = dwarf->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
+
+ if (!type_sp)
+ {
+ SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile();
+ if (debug_map_symfile)
+ {
+ // We weren't able to find a full declaration in
+ // this DWARF, see if we have a declaration anywhere
+ // else...
+ type_sp = debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
+ }
+ }
+
+ if (type_sp)
+ {
+ if (log)
+ {
+ dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+ "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64,
+ static_cast<void*>(this),
+ die->GetOffset(),
+ DW_TAG_value_to_name(tag),
+ type_name_cstr,
+ type_sp->GetID());
+ }
+
+ // We found a real definition for this type elsewhere
+ // so lets use it and cache the fact that we found
+ // a complete type for this die
+ dwarf->m_die_to_type[die] = type_sp.get();
+ return type_sp;
+ }
+ }
+ assert (tag_decl_kind != -1);
+ bool clang_type_was_created = false;
+ clang_type.SetClangType(this, dwarf->m_forward_decl_die_to_clang_type.lookup (die));
+ if (!clang_type)
+ {
+ const DWARFDebugInfoEntry *decl_ctx_die;
+
+ clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (dwarf, dwarf_cu, die, &decl_ctx_die);
+ if (accessibility == eAccessNone && decl_ctx)
+ {
+ // Check the decl context that contains this class/struct/union.
+ // If it is a class we must give it an accessibility.
+ const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind();
+ if (DeclKindIsCXXClass (containing_decl_kind))
+ accessibility = default_accessibility;
+ }
+
+ ClangASTMetadata metadata;
+ metadata.SetUserID(dwarf->MakeUserID(die->GetOffset()));
+ metadata.SetIsDynamicCXXType(dwarf->ClassOrStructIsVirtual (dwarf_cu, die));
+
+ if (type_name_cstr && strchr (type_name_cstr, '<'))
+ {
+ ClangASTContext::TemplateParameterInfos template_param_infos;
+ if (ParseTemplateParameterInfos (dwarf, dwarf_cu, die, template_param_infos))
+ {
+ clang::ClassTemplateDecl *class_template_decl = ParseClassTemplateDecl (dwarf,
+ decl_ctx,
+ accessibility,
+ type_name_cstr,
+ tag_decl_kind,
+ template_param_infos);
+
+ clang::ClassTemplateSpecializationDecl *class_specialization_decl = CreateClassTemplateSpecializationDecl (decl_ctx,
+ class_template_decl,
+ tag_decl_kind,
+ template_param_infos);
+ clang_type = CreateClassTemplateSpecializationType (class_specialization_decl);
+ clang_type_was_created = true;
+
+ SetMetadata (class_template_decl, metadata);
+ SetMetadata (class_specialization_decl, metadata);
+ }
+ }
+
+ if (!clang_type_was_created)
+ {
+ clang_type_was_created = true;
+ clang_type = CreateRecordType (decl_ctx,
+ accessibility,
+ type_name_cstr,
+ tag_decl_kind,
+ class_language,
+ &metadata);
+ }
+ }
+
+ // Store a forward declaration to this class type in case any
+ // parameters in any class methods need it for the clang
+ // types for function prototypes.
+ dwarf->LinkDeclContextToDIE(GetDeclContextForType(clang_type), die);
+ type_sp.reset (new Type (dwarf->MakeUserID(die->GetOffset()),
+ dwarf,
+ type_name_const_str,
+ byte_size,
+ NULL,
+ LLDB_INVALID_UID,
+ Type::eEncodingIsUID,
+ &decl,
+ clang_type,
+ Type::eResolveStateForward));
+
+ type_sp->SetIsCompleteObjCClass(is_complete_objc_class);
+
+
+ // 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_symfile = dwarf;
+ unique_ast_entry_ap->m_cu = dwarf_cu;
+ 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 && die->HasChildren())
+ {
+ // Check to see if the DIE actually has a definition, some version of GCC will
+ // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram,
+ // members, or inheritance, so we can't trust it
+ const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
+ while (child_die)
+ {
+ switch (child_die->Tag())
+ {
+ case DW_TAG_inheritance:
+ case DW_TAG_subprogram:
+ case DW_TAG_member:
+ case DW_TAG_APPLE_property:
+ case DW_TAG_class_type:
+ case DW_TAG_structure_type:
+ case DW_TAG_enumeration_type:
+ case DW_TAG_typedef:
+ case DW_TAG_union_type:
+ child_die = NULL;
+ is_forward_declaration = false;
+ break;
+ default:
+ child_die = child_die->GetSibling();
+ break;
+ }
+ }
+ }
+
+ 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
+ ClangASTContext::StartTagDeclarationDefinition (clang_type);
+ ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+
+ if (tag == DW_TAG_structure_type) // this only applies in C
+ {
+ clang::RecordDecl *record_decl = ClangASTContext::GetAsRecordDecl(clang_type);
+
+ if (record_decl)
+ m_record_decl_to_layout_map.insert(std::make_pair(record_decl, LayoutInfo()));
+ }
+ }
+ else if (clang_type_was_created)
+ {
+ // Start the definition if the class is not objective C since
+ // the underlying decls respond to isCompleteDefinition(). Objective
+ // C decls don't respond to isCompleteDefinition() so we can't
+ // start the declaration definition right away. For C++ class/union/structs
+ // we want to start the definition in case the class is needed as the
+ // declaration context for a contained class or type without the need
+ // to complete that type..
+
+ if (class_language != eLanguageTypeObjC &&
+ class_language != eLanguageTypeObjC_plus_plus)
+ ClangASTContext::StartTagDeclarationDefinition (clang_type);
+
+ // 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::ResolveClangOpaqueTypeDefinition(Type *)"
+ // When the definition needs to be defined.
+ dwarf->m_forward_decl_die_to_clang_type[die] = clang_type.GetOpaqueQualType();
+ dwarf->m_forward_decl_clang_type_to_die[ClangASTContext::RemoveFastQualifiers(clang_type).GetOpaqueQualType()] = die;
+ SetHasExternalStorage (clang_type.GetOpaqueQualType(), true);
+ }
+ }
+
+ }
+ break;
+
+ case DW_TAG_enumeration_type:
+ {
+ // Set a bit that lets us know that we are currently parsing this
+ dwarf->m_die_to_type[die] = DIE_IS_BEING_PARSED;
+
+ lldb::user_id_t encoding_uid = DW_INVALID_OFFSET;
+
+ const size_t num_attributes = die->GetAttributes(dwarf, dwarf_cu, NULL, attributes);
+ if (num_attributes > 0)
+ {
+ uint32_t i;
+
+ for (i=0; i<num_attributes; ++i)
+ {
+ attr = attributes.AttributeAtIndex(i);
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_name:
+ type_name_cstr = form_value.AsCString(&dwarf->get_debug_str_data());
+ type_name_const_str.SetCString(type_name_cstr);
+ break;
+ case DW_AT_type: encoding_uid = form_value.Reference(); break;
+ case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
+ case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
+ case DW_AT_declaration: break; //is_forward_declaration = form_value.Boolean(); break;
+ case DW_AT_allocated:
+ case DW_AT_associated:
+ case DW_AT_bit_stride:
+ case DW_AT_byte_stride:
+ case DW_AT_data_location:
+ case DW_AT_description:
+ case DW_AT_start_scope:
+ case DW_AT_visibility:
+ case DW_AT_specification:
+ case DW_AT_abstract_origin:
+ case DW_AT_sibling:
+ break;
+ }
+ }
+ }
+
+ DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
+
+ CompilerType enumerator_clang_type;
+ clang_type.SetClangType (this, dwarf->m_forward_decl_die_to_clang_type.lookup (die));
+ if (!clang_type)
+ {
+ if (encoding_uid != DW_INVALID_OFFSET)
+ {
+ Type *enumerator_type = dwarf->ResolveTypeUID(encoding_uid);
+ if (enumerator_type)
+ enumerator_clang_type = enumerator_type->GetClangFullType();
+ }
+
+ if (!enumerator_clang_type)
+ enumerator_clang_type = GetBuiltinTypeForDWARFEncodingAndBitSize (NULL,
+ DW_ATE_signed,
+ byte_size * 8);
+
+ clang_type = CreateEnumerationType (type_name_cstr,
+ GetClangDeclContextContainingDIE (dwarf, dwarf_cu, die, NULL),
+ decl,
+ enumerator_clang_type);
+ }
+ else
+ {
+ enumerator_clang_type = GetEnumerationIntegerType (clang_type.GetOpaqueQualType());
+ }
+
+ dwarf->LinkDeclContextToDIE(ClangASTContext::GetDeclContextForType(clang_type), die);
+
+ type_sp.reset( new Type (dwarf->MakeUserID(die->GetOffset()),
+ dwarf,
+ type_name_const_str,
+ byte_size,
+ NULL,
+ encoding_uid,
+ Type::eEncodingIsUID,
+ &decl,
+ clang_type,
+ Type::eResolveStateForward));
+
+ ClangASTContext::StartTagDeclarationDefinition (clang_type);
+ if (die->HasChildren())
+ {
+ SymbolContext cu_sc(dwarf->GetCompUnitForDWARFCompUnit(dwarf_cu));
+ bool is_signed = false;
+ enumerator_clang_type.IsIntegerType(is_signed);
+ ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), dwarf, dwarf_cu, die);
+ }
+ ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+ }
+ }
+ break;
+
+ case DW_TAG_inlined_subroutine:
+ 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] = DIE_IS_BEING_PARSED;
+
+ //const char *mangled = NULL;
+ dw_offset_t type_die_offset = DW_INVALID_OFFSET;
+ bool is_variadic = false;
+ bool is_inline = false;
+ bool is_static = false;
+ bool is_virtual = false;
+ bool is_explicit = false;
+ bool is_artificial = false;
+ dw_offset_t specification_die_offset = DW_INVALID_OFFSET;
+ dw_offset_t abstract_origin_die_offset = DW_INVALID_OFFSET;
+ dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET;
+
+ unsigned type_quals = 0;
+ clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern
+
+
+ const size_t num_attributes = die->GetAttributes(dwarf, dwarf_cu, NULL, attributes);
+ if (num_attributes > 0)
+ {
+ uint32_t i;
+ for (i=0; i<num_attributes; ++i)
+ {
+ attr = attributes.AttributeAtIndex(i);
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_name:
+ type_name_cstr = form_value.AsCString(&dwarf->get_debug_str_data());
+ type_name_const_str.SetCString(type_name_cstr);
+ break;
+
+ case DW_AT_linkage_name:
+ case DW_AT_MIPS_linkage_name: break; // mangled = form_value.AsCString(&dwarf->get_debug_str_data()); break;
+ case DW_AT_type: type_die_offset = form_value.Reference(); break;
+ case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
+ case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
+ case DW_AT_inline: is_inline = form_value.Boolean(); break;
+ case DW_AT_virtuality: is_virtual = form_value.Boolean(); break;
+ case DW_AT_explicit: is_explicit = form_value.Boolean(); break;
+ case DW_AT_artificial: is_artificial = form_value.Boolean(); 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_specification:
+ specification_die_offset = form_value.Reference();
+ break;
+
+ case DW_AT_abstract_origin:
+ abstract_origin_die_offset = form_value.Reference();
+ break;
+
+ case DW_AT_object_pointer:
+ object_pointer_die_offset = form_value.Reference();
+ break;
+
+ case DW_AT_allocated:
+ case DW_AT_associated:
+ case DW_AT_address_class:
+ case DW_AT_calling_convention:
+ case DW_AT_data_location:
+ case DW_AT_elemental:
+ case DW_AT_entry_pc:
+ case DW_AT_frame_base:
+ case DW_AT_high_pc:
+ case DW_AT_low_pc:
+ case DW_AT_prototyped:
+ case DW_AT_pure:
+ case DW_AT_ranges:
+ case DW_AT_recursive:
+ case DW_AT_return_addr:
+ case DW_AT_segment:
+ case DW_AT_start_scope:
+ case DW_AT_static_link:
+ case DW_AT_trampoline:
+ case DW_AT_visibility:
+ case DW_AT_vtable_elem_location:
+ case DW_AT_description:
+ case DW_AT_sibling:
+ break;
+ }
+ }
+ }
+ }
+
+ std::string object_pointer_name;
+ if (object_pointer_die_offset != DW_INVALID_OFFSET)
+ {
+ // Get the name from the object pointer die
+ StreamString s;
+ if (DWARFDebugInfoEntry::GetName (dwarf, dwarf_cu, object_pointer_die_offset, s))
+ {
+ object_pointer_name.assign(s.GetData());
+ }
+ }
+
+ DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
+
+ CompilerType return_clang_type;
+ Type *func_type = NULL;
+
+ if (type_die_offset != DW_INVALID_OFFSET)
+ func_type = dwarf->ResolveTypeUID(type_die_offset);
+
+ if (func_type)
+ return_clang_type = func_type->GetClangForwardType();
+ else
+ return_clang_type = GetBasicType(eBasicTypeVoid);
+
+
+ std::vector<CompilerType> function_param_types;
+ std::vector<clang::ParmVarDecl*> function_param_decls;
+
+ // Parse the function children for the parameters
+
+ const DWARFDebugInfoEntry *decl_ctx_die = NULL;
+ clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf, dwarf_cu, die, &decl_ctx_die);
+ const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind();
+
+ const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind);
+ // Start off static. This will be set to false in ParseChildParameters(...)
+ // if we find a "this" parameters as the first parameter
+ if (is_cxx_method)
+ is_static = true;
+
+ if (die->HasChildren())
+ {
+ bool skip_artificial = true;
+ ParseChildParameters (sc,
+ containing_decl_ctx,
+ dwarf,
+ dwarf_cu,
+ die,
+ skip_artificial,
+ is_static,
+ is_variadic,
+ function_param_types,
+ function_param_decls,
+ type_quals);
+ }
+
+ // clang_type will get the function prototype clang type after this call
+ clang_type = CreateFunctionType (return_clang_type,
+ function_param_types.data(),
+ function_param_types.size(),
+ is_variadic,
+ type_quals);
+
+ bool ignore_containing_context = false;
+
+ if (type_name_cstr)
+ {
+ bool type_handled = false;
+ if (tag == DW_TAG_subprogram)
+ {
+ ObjCLanguageRuntime::MethodName objc_method (type_name_cstr, true);
+ if (objc_method.IsValid(true))
+ {
+ CompilerType class_opaque_type;
+ ConstString class_name(objc_method.GetClassName());
+ if (class_name)
+ {
+ TypeSP complete_objc_class_type_sp (dwarf->FindCompleteObjCDefinitionTypeForDIE (NULL, class_name, false));
+
+ if (complete_objc_class_type_sp)
+ {
+ CompilerType type_clang_forward_type = complete_objc_class_type_sp->GetClangForwardType();
+ if (ClangASTContext::IsObjCObjectOrInterfaceType(type_clang_forward_type))
+ class_opaque_type = type_clang_forward_type;
+ }
+ }
+
+ if (class_opaque_type)
+ {
+ // If accessibility isn't set to anything valid, assume public for
+ // now...
+ if (accessibility == eAccessNone)
+ accessibility = eAccessPublic;
+
+ clang::ObjCMethodDecl *objc_method_decl = AddMethodToObjCObjectType (class_opaque_type,
+ type_name_cstr,
+ clang_type,
+ accessibility,
+ is_artificial);
+ type_handled = objc_method_decl != NULL;
+ if (type_handled)
+ {
+ dwarf->LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die);
+ SetMetadataAsUserID (objc_method_decl, dwarf->MakeUserID(die->GetOffset()));
+ }
+ else
+ {
+ dwarf->GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: invalid Objective-C method 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));
+ }
+ }
+ }
+ else if (is_cxx_method)
+ {
+ // Look at the parent of this DIE and see if is is
+ // a class or struct and see if this is actually a
+ // C++ method
+ Type *class_type = dwarf->ResolveType (dwarf_cu, decl_ctx_die);
+ if (class_type)
+ {
+ if (class_type->GetID() != dwarf->MakeUserID(decl_ctx_die->GetOffset()))
+ {
+ // We uniqued the parent class of this function to another class
+ // so we now need to associate all dies under "decl_ctx_die" to
+ // DIEs in the DIE for "class_type"...
+ SymbolFileDWARF *class_symfile = NULL;
+ DWARFCompileUnitSP class_type_cu_sp;
+ const DWARFDebugInfoEntry *class_type_die = NULL;
+
+ SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile();
+ if (debug_map_symfile)
+ {
+ class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID()));
+ class_type_die = class_symfile->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
+ }
+ else
+ {
+ class_symfile = dwarf;
+ class_type_die = dwarf->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
+ }
+ if (class_type_die)
+ {
+ DWARFDIECollection failures;
+
+ CopyUniqueClassMethodTypes (dwarf,
+ class_symfile,
+ class_type,
+ class_type_cu_sp.get(),
+ class_type_die,
+ dwarf_cu,
+ decl_ctx_die,
+ failures);
+
+ // FIXME do something with these failures that's smarter than
+ // just dropping them on the ground. Unfortunately classes don't
+ // like having stuff added to them after their definitions are
+ // complete...
+
+ type_ptr = dwarf->m_die_to_type[die];
+ if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
+ {
+ type_sp = type_ptr->shared_from_this();
+ break;
+ }
+ }
+ }
+
+ if (specification_die_offset != DW_INVALID_OFFSET)
+ {
+ // We have a specification which we are going to base our function
+ // prototype off of, so we need this type to be completed so that the
+ // m_die_to_decl_ctx for the method in the specification has a valid
+ // clang decl context.
+ class_type->GetClangForwardType();
+ // If we have a specification, then the function type should have been
+ // made with the specification and not with this die.
+ DWARFCompileUnitSP spec_cu_sp;
+ const DWARFDebugInfoEntry* spec_die = dwarf->DebugInfo()->GetDIEPtr(specification_die_offset, &spec_cu_sp);
+ clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (dwarf, sc, dwarf_cu, spec_die);
+ if (spec_clang_decl_ctx)
+ {
+ dwarf->LinkDeclContextToDIE(spec_clang_decl_ctx, die);
+ }
+ else
+ {
+ dwarf->GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_specification(0x%8.8x) has no decl\n",
+ dwarf->MakeUserID(die->GetOffset()),
+ specification_die_offset);
+ }
+ type_handled = true;
+ }
+ else if (abstract_origin_die_offset != DW_INVALID_OFFSET)
+ {
+ // We have a specification which we are going to base our function
+ // prototype off of, so we need this type to be completed so that the
+ // m_die_to_decl_ctx for the method in the abstract origin has a valid
+ // clang decl context.
+ class_type->GetClangForwardType();
+
+ DWARFCompileUnitSP abs_cu_sp;
+ const DWARFDebugInfoEntry* abs_die = dwarf->DebugInfo()->GetDIEPtr(abstract_origin_die_offset, &abs_cu_sp);
+ clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (dwarf, sc, dwarf_cu, abs_die);
+ if (abs_clang_decl_ctx)
+ {
+ dwarf->LinkDeclContextToDIE (abs_clang_decl_ctx, die);
+ }
+ else
+ {
+ dwarf->GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_abstract_origin(0x%8.8x) has no decl\n",
+ dwarf->MakeUserID(die->GetOffset()),
+ abstract_origin_die_offset);
+ }
+ type_handled = true;
+ }
+ else
+ {
+ CompilerType class_opaque_type = class_type->GetClangForwardType();
+ if (ClangASTContext::IsCXXClassType(class_opaque_type))
+ {
+ if (class_opaque_type.IsBeingDefined ())
+ {
+ // Neither GCC 4.2 nor clang++ currently set a valid accessibility
+ // in the DWARF for C++ methods... Default to public for now...
+ if (accessibility == eAccessNone)
+ accessibility = eAccessPublic;
+
+ if (!is_static && !die->HasChildren())
+ {
+ // We have a C++ member function with no children (this pointer!)
+ // and clang will get mad if we try and make a function that isn't
+ // well formed in the DWARF, so we will just skip it...
+ type_handled = true;
+ }
+ else
+ {
+ clang::CXXMethodDecl *cxx_method_decl;
+ // REMOVE THE CRASH DESCRIPTION BELOW
+ Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64 " from %s",
+ type_name_cstr,
+ class_type->GetName().GetCString(),
+ dwarf->MakeUserID(die->GetOffset()),
+ dwarf->GetObjectFile()->GetFileSpec().GetPath().c_str());
+
+ const bool is_attr_used = false;
+
+ cxx_method_decl = AddMethodToCXXRecordType (class_opaque_type.GetOpaqueQualType(),
+ type_name_cstr,
+ clang_type,
+ accessibility,
+ is_virtual,
+ is_static,
+ is_inline,
+ is_explicit,
+ is_attr_used,
+ is_artificial);
+
+ type_handled = cxx_method_decl != NULL;
+
+ if (type_handled)
+ {
+ dwarf->LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die);
+
+ Host::SetCrashDescription (NULL);
+
+
+ ClangASTMetadata metadata;
+ metadata.SetUserID(dwarf->MakeUserID(die->GetOffset()));
+
+ if (!object_pointer_name.empty())
+ {
+ metadata.SetObjectPtrName(object_pointer_name.c_str());
+ if (log)
+ log->Printf ("Setting object pointer name: %s on method object %p.\n",
+ object_pointer_name.c_str(),
+ static_cast<void*>(cxx_method_decl));
+ }
+ SetMetadata (cxx_method_decl, metadata);
+ }
+ else
+ {
+ ignore_containing_context = true;
+ }
+ }
+ }
+ else
+ {
+ // We were asked to parse the type for a method in a class, yet the
+ // class hasn't been asked to complete itself through the
+ // clang::ExternalASTSource protocol, so we need to just have the
+ // class complete itself and do things the right way, then our
+ // DIE should then have an entry in the dwarf->m_die_to_type map. First
+ // we need to modify the dwarf->m_die_to_type so it doesn't think we are
+ // trying to parse this DIE anymore...
+ dwarf->m_die_to_type[die] = NULL;
+
+ // Now we get the full type to force our class type to complete itself
+ // using the clang::ExternalASTSource protocol which will parse all
+ // base classes and all methods (including the method for this DIE).
+ class_type->GetClangFullType();
+
+ // The type for this DIE should have been filled in the function call above
+ type_ptr = dwarf->m_die_to_type[die];
+ if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
+ {
+ type_sp = type_ptr->shared_from_this();
+ break;
+ }
+
+ // FIXME This is fixing some even uglier behavior but we really need to
+ // uniq the methods of each class as well as the class itself.
+ // <rdar://problem/11240464>
+ type_handled = true;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (!type_handled)
+ {
+ // We just have a function that isn't part of a class
+ clang::FunctionDecl *function_decl = CreateFunctionDeclaration (ignore_containing_context ? GetTranslationUnitDecl() : containing_decl_ctx,
+ type_name_cstr,
+ clang_type,
+ storage,
+ is_inline);
+
+ // if (template_param_infos.GetSize() > 0)
+ // {
+ // clang::FunctionTemplateDecl *func_template_decl = CreateFunctionTemplateDecl (containing_decl_ctx,
+ // function_decl,
+ // type_name_cstr,
+ // template_param_infos);
+ //
+ // CreateFunctionTemplateSpecializationInfo (function_decl,
+ // func_template_decl,
+ // template_param_infos);
+ // }
+ // Add the decl to our DIE to decl context map
+ assert (function_decl);
+ dwarf->LinkDeclContextToDIE(function_decl, die);
+ if (!function_param_decls.empty())
+ SetFunctionParameters (function_decl,
+ &function_param_decls.front(),
+ function_param_decls.size());
+
+ ClangASTMetadata metadata;
+ metadata.SetUserID(dwarf->MakeUserID(die->GetOffset()));
+
+ if (!object_pointer_name.empty())
+ {
+ metadata.SetObjectPtrName(object_pointer_name.c_str());
+ if (log)
+ log->Printf ("Setting object pointer name: %s on function object %p.",
+ object_pointer_name.c_str(),
+ static_cast<void*>(function_decl));
+ }
+ SetMetadata (function_decl, metadata);
+ }
+ }
+ type_sp.reset( new Type (dwarf->MakeUserID(die->GetOffset()),
+ dwarf,
+ type_name_const_str,
+ 0,
+ NULL,
+ LLDB_INVALID_UID,
+ Type::eEncodingIsUID,
+ &decl,
+ clang_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] = 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;
+ bool is_vector = false;
+ const size_t num_attributes = die->GetAttributes(dwarf, dwarf_cu, NULL, attributes);
+
+ if (num_attributes > 0)
+ {
+ uint32_t i;
+ for (i=0; i<num_attributes; ++i)
+ {
+ attr = attributes.AttributeAtIndex(i);
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+ case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
+ case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+ case DW_AT_name:
+ type_name_cstr = form_value.AsCString(&dwarf->get_debug_str_data());
+ 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_byte_stride: byte_stride = form_value.Unsigned(); break;
+ case DW_AT_bit_stride: bit_stride = form_value.Unsigned(); break;
+ case DW_AT_GNU_vector: is_vector = form_value.Boolean(); break;
+ case DW_AT_accessibility: break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
+ case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
+ case DW_AT_allocated:
+ case DW_AT_associated:
+ case DW_AT_data_location:
+ case DW_AT_description:
+ case DW_AT_ordering:
+ case DW_AT_start_scope:
+ case DW_AT_visibility:
+ case DW_AT_specification:
+ case DW_AT_abstract_origin:
+ case DW_AT_sibling:
+ 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, dwarf, dwarf_cu, die, first_index, element_orders, byte_stride, bit_stride);
+ if (byte_stride == 0 && bit_stride == 0)
+ byte_stride = element_type->GetByteSize();
+ CompilerType array_element_type = element_type->GetClangForwardType();
+ uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride;
+ if (element_orders.size() > 0)
+ {
+ uint64_t num_elements = 0;
+ std::vector<uint64_t>::const_reverse_iterator pos;
+ std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend();
+ for (pos = element_orders.rbegin(); pos != end; ++pos)
+ {
+ num_elements = *pos;
+ clang_type = CreateArrayType (array_element_type,
+ num_elements,
+ is_vector);
+ array_element_type = clang_type;
+ array_element_bit_stride = num_elements ?
+ array_element_bit_stride * num_elements :
+ array_element_bit_stride;
+ }
+ }
+ else
+ {
+ clang_type = CreateArrayType (array_element_type, 0, is_vector);
+ }
+ ConstString empty_name;
+ type_sp.reset( new Type (dwarf->MakeUserID(die->GetOffset()),
+ dwarf,
+ empty_name,
+ array_element_bit_stride / 8,
+ NULL,
+ type_die_offset,
+ Type::eEncodingIsUID,
+ &decl,
+ clang_type,
+ Type::eResolveStateFull));
+ type_sp->SetEncodingType (element_type);
+ }
+ }
+ }
+ break;
+
+ case DW_TAG_ptr_to_member_type:
+ {
+ dw_offset_t type_die_offset = DW_INVALID_OFFSET;
+ dw_offset_t containing_type_die_offset = DW_INVALID_OFFSET;
+
+ const size_t num_attributes = die->GetAttributes(dwarf, dwarf_cu, NULL, attributes);
+
+ if (num_attributes > 0) {
+ uint32_t i;
+ for (i=0; i<num_attributes; ++i)
+ {
+ attr = attributes.AttributeAtIndex(i);
+ if (attributes.ExtractFormValueAtIndex(dwarf, i, form_value))
+ {
+ switch (attr)
+ {
+ case DW_AT_type:
+ type_die_offset = form_value.Reference(); break;
+ case DW_AT_containing_type:
+ containing_type_die_offset = form_value.Reference(); break;
+ }
+ }
+ }
+
+ Type *pointee_type = dwarf->ResolveTypeUID(type_die_offset);
+ Type *class_type = dwarf->ResolveTypeUID(containing_type_die_offset);
+
+ CompilerType pointee_clang_type = pointee_type->GetClangForwardType();
+ CompilerType class_clang_type = class_type->GetClangLayoutType();
+
+ clang_type = ClangASTContext::CreateMemberPointerType(pointee_clang_type, class_clang_type);
+
+ byte_size = clang_type.GetByteSize(nullptr);
+
+ type_sp.reset( new Type (dwarf->MakeUserID(die->GetOffset()),
+ dwarf,
+ type_name_const_str,
+ byte_size,
+ NULL,
+ LLDB_INVALID_UID,
+ Type::eEncodingIsUID,
+ NULL,
+ clang_type,
+ Type::eResolveStateForward));
+ }
+
+ 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())
+ {
+ const DWARFDebugInfoEntry *sc_parent_die = SymbolFileDWARF::GetParentSymbolContextDIE(die);
+ dw_tag_t sc_parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
+
+ 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] = type_sp.get();
+ }
+ }
+ else if (type_ptr != DIE_IS_BEING_PARSED)
+ {
+ type_sp = type_ptr->shared_from_this();
+ }
+ }
+ return type_sp;
+}
+
+
+bool
+ClangASTContext::CopyUniqueClassMethodTypes (SymbolFileDWARF *dst_symfile,
+ SymbolFileDWARF *src_symfile,
+ Type *class_type,
+ DWARFCompileUnit* src_cu,
+ const DWARFDebugInfoEntry *src_class_die,
+ DWARFCompileUnit* dst_cu,
+ const DWARFDebugInfoEntry *dst_class_die,
+ DWARFDIECollection &failures)
+{
+ if (!class_type || !src_cu || !src_class_die || !dst_cu || !dst_class_die)
+ return false;
+ if (src_class_die->Tag() != dst_class_die->Tag())
+ return false;
+
+ // We need to complete the class type so we can get all of the method types
+ // parsed so we can then unique those types to their equivalent counterparts
+ // in "dst_cu" and "dst_class_die"
+ class_type->GetClangFullType();
+
+ const DWARFDebugInfoEntry *src_die;
+ const DWARFDebugInfoEntry *dst_die;
+ UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die;
+ UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die;
+ UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die_artificial;
+ UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die_artificial;
+ for (src_die = src_class_die->GetFirstChild(); src_die != NULL; src_die = src_die->GetSibling())
+ {
+ if (src_die->Tag() == DW_TAG_subprogram)
+ {
+ // Make sure this is a declaration and not a concrete instance by looking
+ // for DW_AT_declaration set to 1. Sometimes concrete function instances
+ // are placed inside the class definitions and shouldn't be included in
+ // the list of things are are tracking here.
+ if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_declaration, 0) == 1)
+ {
+ const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
+ if (src_name)
+ {
+ ConstString src_const_name(src_name);
+ if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_artificial, 0))
+ src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die);
+ else
+ src_name_to_die.Append(src_const_name.GetCString(), src_die);
+ }
+ }
+ }
+ }
+ for (dst_die = dst_class_die->GetFirstChild(); dst_die != NULL; dst_die = dst_die->GetSibling())
+ {
+ if (dst_die->Tag() == DW_TAG_subprogram)
+ {
+ // Make sure this is a declaration and not a concrete instance by looking
+ // for DW_AT_declaration set to 1. Sometimes concrete function instances
+ // are placed inside the class definitions and shouldn't be included in
+ // the list of things are are tracking here.
+ if (dst_die->GetAttributeValueAsUnsigned(dst_symfile, dst_cu, DW_AT_declaration, 0) == 1)
+ {
+ const char *dst_name = dst_die->GetMangledName (dst_symfile, dst_cu);
+ if (dst_name)
+ {
+ ConstString dst_const_name(dst_name);
+ if (dst_die->GetAttributeValueAsUnsigned(dst_symfile, dst_cu, DW_AT_artificial, 0))
+ dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die);
+ else
+ dst_name_to_die.Append(dst_const_name.GetCString(), dst_die);
+ }
+ }
+ }
+ }
+ const uint32_t src_size = src_name_to_die.GetSize ();
+ const uint32_t dst_size = dst_name_to_die.GetSize ();
+ Log *log = nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_TYPE_COMPLETION));
+
+ // Is everything kosher so we can go through the members at top speed?
+ bool fast_path = true;
+
+ if (src_size != dst_size)
+ {
+ if (src_size != 0 && dst_size != 0)
+ {
+ if (log)
+ log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, but they didn't have the same size (src=%d, dst=%d)",
+ src_class_die->GetOffset(),
+ dst_class_die->GetOffset(),
+ src_size,
+ dst_size);
+ }
+
+ fast_path = false;
+ }
+
+ uint32_t idx;
+
+ if (fast_path)
+ {
+ for (idx = 0; idx < src_size; ++idx)
+ {
+ src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
+ dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
+
+ if (src_die->Tag() != dst_die->Tag())
+ {
+ if (log)
+ log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)",
+ src_class_die->GetOffset(),
+ dst_class_die->GetOffset(),
+ src_die->GetOffset(),
+ DW_TAG_value_to_name(src_die->Tag()),
+ dst_die->GetOffset(),
+ DW_TAG_value_to_name(src_die->Tag()));
+ fast_path = false;
+ }
+
+ const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
+ const char *dst_name = dst_die->GetMangledName (dst_symfile, dst_cu);
+
+ // Make sure the names match
+ if (src_name == dst_name || (strcmp (src_name, dst_name) == 0))
+ continue;
+
+ if (log)
+ log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)",
+ src_class_die->GetOffset(),
+ dst_class_die->GetOffset(),
+ src_die->GetOffset(),
+ src_name,
+ dst_die->GetOffset(),
+ dst_name);
+
+ fast_path = false;
+ }
+ }
+
+ // Now do the work of linking the DeclContexts and Types.
+ if (fast_path)
+ {
+ // We can do this quickly. Just run across the tables index-for-index since
+ // we know each node has matching names and tags.
+ for (idx = 0; idx < src_size; ++idx)
+ {
+ src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
+ dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
+
+ clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
+ if (src_decl_ctx)
+ {
+ if (log)
+ log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
+ static_cast<void*>(src_decl_ctx),
+ src_die->GetOffset(), dst_die->GetOffset());
+ dst_symfile->LinkDeclContextToDIE (src_decl_ctx, dst_die);
+ }
+ else
+ {
+ if (log)
+ log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found",
+ src_die->GetOffset(), dst_die->GetOffset());
+ }
+
+ Type *src_child_type = dst_symfile->m_die_to_type[src_die];
+ if (src_child_type)
+ {
+ if (log)
+ log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
+ static_cast<void*>(src_child_type),
+ src_child_type->GetID(),
+ src_die->GetOffset(), dst_die->GetOffset());
+ dst_symfile->m_die_to_type[dst_die] = src_child_type;
+ }
+ else
+ {
+ if (log)
+ log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
+ }
+ }
+ }
+ else
+ {
+ // We must do this slowly. For each member of the destination, look
+ // up a member in the source with the same name, check its tag, and
+ // unique them if everything matches up. Report failures.
+
+ if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty())
+ {
+ src_name_to_die.Sort();
+
+ for (idx = 0; idx < dst_size; ++idx)
+ {
+ const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx);
+ dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx);
+ src_die = src_name_to_die.Find(dst_name, NULL);
+
+ if (src_die && (src_die->Tag() == dst_die->Tag()))
+ {
+ clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
+ if (src_decl_ctx)
+ {
+ if (log)
+ log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
+ static_cast<void*>(src_decl_ctx),
+ src_die->GetOffset(),
+ dst_die->GetOffset());
+ dst_symfile->LinkDeclContextToDIE (src_decl_ctx, dst_die);
+ }
+ else
+ {
+ if (log)
+ log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
+ }
+
+ Type *src_child_type = dst_symfile->m_die_to_type[src_die];
+ if (src_child_type)
+ {
+ if (log)
+ log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
+ static_cast<void*>(src_child_type),
+ src_child_type->GetID(),
+ src_die->GetOffset(),
+ dst_die->GetOffset());
+ dst_symfile->m_die_to_type[dst_die] = src_child_type;
+ }
+ else
+ {
+ if (log)
+ log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
+ }
+ }
+ else
+ {
+ if (log)
+ log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die->GetOffset());
+
+ failures.Append(dst_die);
+ }
+ }
+ }
+ }
+
+ const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize ();
+ const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize ();
+
+ UniqueCStringMap<const DWARFDebugInfoEntry *> name_to_die_artificial_not_in_src;
+
+ if (src_size_artificial && dst_size_artificial)
+ {
+ dst_name_to_die_artificial.Sort();
+
+ for (idx = 0; idx < src_size_artificial; ++idx)
+ {
+ const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx);
+ src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
+ dst_die = dst_name_to_die_artificial.Find(src_name_artificial, NULL);
+
+ if (dst_die)
+ {
+ // Both classes have the artificial types, link them
+ clang::DeclContext *src_decl_ctx = dst_symfile->m_die_to_decl_ctx[src_die];
+ if (src_decl_ctx)
+ {
+ if (log)
+ log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
+ static_cast<void*>(src_decl_ctx),
+ src_die->GetOffset(), dst_die->GetOffset());
+ dst_symfile->LinkDeclContextToDIE (src_decl_ctx, dst_die);
+ }
+ else
+ {
+ if (log)
+ log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
+ }
+
+ Type *src_child_type = dst_symfile->m_die_to_type[src_die];
+ if (src_child_type)
+ {
+ if (log)
+ log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
+ static_cast<void*>(src_child_type),
+ src_child_type->GetID(),
+ src_die->GetOffset(), dst_die->GetOffset());
+ dst_symfile->m_die_to_type[dst_die] = src_child_type;
+ }
+ else
+ {
+ if (log)
+ log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
+ }
+ }
+ }
+ }
+
+ if (dst_size_artificial)
+ {
+ for (idx = 0; idx < dst_size_artificial; ++idx)
+ {
+ const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx);
+ dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
+ if (log)
+ log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die->GetOffset(), dst_name_artificial);
+
+ failures.Append(dst_die);
+ }
+ }
+
+ return (failures.Size() != 0);
+}
+
+
+bool
+ClangASTContext::DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl,
+ SymbolFileDWARF *dwarf,
+ DWARFCompileUnit *cu,
+ const DWARFDebugInfoEntry *die)
+{
+ // No namespace specified, so the answer is
+ if (namespace_decl == NULL)
+ return true;
+
+ Log *log = nullptr; //(LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
+
+ const DWARFDebugInfoEntry *decl_ctx_die = NULL;
+ clang::DeclContext *die_clang_decl_ctx = GetClangDeclContextContainingDIE (dwarf, cu, die, &decl_ctx_die);
+ if (decl_ctx_die)
+ {
+ clang::NamespaceDecl *clang_namespace_decl = namespace_decl->GetNamespaceDecl();
+
+ if (clang_namespace_decl)
+ {
+ if (decl_ctx_die->Tag() != DW_TAG_namespace)
+ {
+ if (log)
+ dwarf->GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent is not a namespace");
+ return false;
+ }
+
+ if (clang_namespace_decl == die_clang_decl_ctx)
+ return true;
+ else
+ return false;
+ }
+ else
+ {
+ // We have a namespace_decl that was not NULL but it contained
+ // a NULL "clang::NamespaceDecl", so this means the global namespace
+ // So as long the contained decl context DIE isn't a namespace
+ // we should be ok.
+ if (decl_ctx_die->Tag() != DW_TAG_namespace)
+ return true;
+ }
+ }
+
+ if (log)
+ dwarf->GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent doesn't exist");
+
+ return false;
+}
+
Modified: lldb/trunk/source/Symbol/SymbolFile.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Symbol/SymbolFile.cpp?rev=245090&r1=245089&r2=245090&view=diff
==============================================================================
--- lldb/trunk/source/Symbol/SymbolFile.cpp (original)
+++ lldb/trunk/source/Symbol/SymbolFile.cpp Fri Aug 14 15:02:05 2015
@@ -82,8 +82,15 @@ SymbolFile::GetTypeList ()
return nullptr;
}
-lldb_private::ClangASTContext &
+ClangASTContext &
SymbolFile::GetClangASTContext ()
{
return m_obj_file->GetModule()->GetClangASTContext();
}
+
+TypeSystem *
+SymbolFile::GetTypeSystemForLanguage (lldb::LanguageType language)
+{
+ return m_obj_file->GetModule()->GetTypeSystemForLanguage (language);
+}
+
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