Import lldb as of SVN r188801

(A number of files not required for the FreeBSD build have been removed.)

Sponsored by:	DARPA, AFRL

1 files changed, 1609 insertions, 0 deletions

diff --git a/source/Core/Module.cpp b/source/Core/Module.cpp
new file mode 100644
index 0000000..4252ed4
--- /dev/null
+++ b/source/Core/Module.cpp
@@ -0,0 +1,1609 @@
+//===-- Module.cpp ----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-python.h"
+
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/DataBuffer.h"
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/ModuleList.h"
+#include "lldb/Core/ModuleSpec.h"
+#include "lldb/Core/RegularExpression.h"
+#include "lldb/Core/Section.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/Timer.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Host/Symbols.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/ScriptInterpreter.h"
+#include "lldb/lldb-private-log.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/SymbolContext.h"
+#include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Target/CPPLanguageRuntime.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Symbol/SymbolFile.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+// Shared pointers to modules track module lifetimes in
+// targets and in the global module, but this collection
+// will track all module objects that are still alive
+typedef std::vector<Module *> ModuleCollection;
+
+static ModuleCollection &
+GetModuleCollection()
+{
+    // This module collection needs to live past any module, so we could either make it a
+    // shared pointer in each module or just leak is.  Since it is only an empty vector by
+    // the time all the modules have gone away, we just leak it for now.  If we decide this 
+    // is a big problem we can introduce a Finalize method that will tear everything down in
+    // a predictable order.
+    
+    static ModuleCollection *g_module_collection = NULL;
+    if (g_module_collection == NULL)
+        g_module_collection = new ModuleCollection();
+        
+    return *g_module_collection;
+}
+
+Mutex *
+Module::GetAllocationModuleCollectionMutex()
+{
+    // NOTE: The mutex below must be leaked since the global module list in
+    // the ModuleList class will get torn at some point, and we can't know
+    // if it will tear itself down before the "g_module_collection_mutex" below
+    // will. So we leak a Mutex object below to safeguard against that
+
+    static Mutex *g_module_collection_mutex = NULL;
+    if (g_module_collection_mutex == NULL)
+        g_module_collection_mutex = new Mutex (Mutex::eMutexTypeRecursive); // NOTE: known leak
+    return g_module_collection_mutex;
+}
+
+size_t
+Module::GetNumberAllocatedModules ()
+{
+    Mutex::Locker locker (GetAllocationModuleCollectionMutex());
+    return GetModuleCollection().size();
+}
+
+Module *
+Module::GetAllocatedModuleAtIndex (size_t idx)
+{
+    Mutex::Locker locker (GetAllocationModuleCollectionMutex());
+    ModuleCollection &modules = GetModuleCollection();
+    if (idx < modules.size())
+        return modules[idx];
+    return NULL;
+}
+#if 0
+
+// These functions help us to determine if modules are still loaded, yet don't require that
+// you have a command interpreter and can easily be called from an external debugger.
+namespace lldb {
+
+    void
+    ClearModuleInfo (void)
+    {
+        const bool mandatory = true;
+        ModuleList::RemoveOrphanSharedModules(mandatory);
+    }
+    
+    void
+    DumpModuleInfo (void)
+    {
+        Mutex::Locker locker (Module::GetAllocationModuleCollectionMutex());
+        ModuleCollection &modules = GetModuleCollection();
+        const size_t count = modules.size();
+        printf ("%s: %" PRIu64 " modules:\n", __PRETTY_FUNCTION__, (uint64_t)count);
+        for (size_t i=0; i<count; ++i)
+        {
+            
+            StreamString strm;
+            Module *module = modules[i];
+            const bool in_shared_module_list = ModuleList::ModuleIsInCache (module);
+            module->GetDescription(&strm, eDescriptionLevelFull);
+            printf ("%p: shared = %i, ref_count = %3u, module = %s\n", 
+                    module, 
+                    in_shared_module_list,
+                    (uint32_t)module->use_count(), 
+                    strm.GetString().c_str());
+        }
+    }
+}
+
+#endif
+
+Module::Module (const ModuleSpec &module_spec) :
+    m_mutex (Mutex::eMutexTypeRecursive),
+    m_mod_time (module_spec.GetFileSpec().GetModificationTime()),
+    m_arch (module_spec.GetArchitecture()),
+    m_uuid (),
+    m_file (module_spec.GetFileSpec()),
+    m_platform_file(module_spec.GetPlatformFileSpec()),
+    m_symfile_spec (module_spec.GetSymbolFileSpec()),
+    m_object_name (module_spec.GetObjectName()),
+    m_object_offset (module_spec.GetObjectOffset()),
+    m_object_mod_time (module_spec.GetObjectModificationTime()),
+    m_objfile_sp (),
+    m_symfile_ap (),
+    m_ast (),
+    m_source_mappings (),
+    m_did_load_objfile (false),
+    m_did_load_symbol_vendor (false),
+    m_did_parse_uuid (false),
+    m_did_init_ast (false),
+    m_is_dynamic_loader_module (false),
+    m_file_has_changed (false),
+    m_first_file_changed_log (false)
+{
+    // Scope for locker below...
+    {
+        Mutex::Locker locker (GetAllocationModuleCollectionMutex());
+        GetModuleCollection().push_back(this);
+    }
+    
+    Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES));
+    if (log)
+        log->Printf ("%p Module::Module((%s) '%s%s%s%s')",
+                     this,
+                     m_arch.GetArchitectureName(),
+                     m_file.GetPath().c_str(),
+                     m_object_name.IsEmpty() ? "" : "(",
+                     m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
+                     m_object_name.IsEmpty() ? "" : ")");
+}
+
+Module::Module(const FileSpec& file_spec, 
+               const ArchSpec& arch, 
+               const ConstString *object_name, 
+               off_t object_offset,
+               const TimeValue *object_mod_time_ptr) :
+    m_mutex (Mutex::eMutexTypeRecursive),
+    m_mod_time (file_spec.GetModificationTime()),
+    m_arch (arch),
+    m_uuid (),
+    m_file (file_spec),
+    m_platform_file(),
+    m_symfile_spec (),
+    m_object_name (),
+    m_object_offset (object_offset),
+    m_object_mod_time (),
+    m_objfile_sp (),
+    m_symfile_ap (),
+    m_ast (),
+    m_source_mappings (),
+    m_did_load_objfile (false),
+    m_did_load_symbol_vendor (false),
+    m_did_parse_uuid (false),
+    m_did_init_ast (false),
+    m_is_dynamic_loader_module (false),
+    m_file_has_changed (false),
+    m_first_file_changed_log (false)
+{
+    // Scope for locker below...
+    {
+        Mutex::Locker locker (GetAllocationModuleCollectionMutex());
+        GetModuleCollection().push_back(this);
+    }
+
+    if (object_name)
+        m_object_name = *object_name;
+    
+    if (object_mod_time_ptr)
+        m_object_mod_time = *object_mod_time_ptr;
+
+    Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES));
+    if (log)
+        log->Printf ("%p Module::Module((%s) '%s%s%s%s')",
+                     this,
+                     m_arch.GetArchitectureName(),
+                     m_file.GetPath().c_str(),
+                     m_object_name.IsEmpty() ? "" : "(",
+                     m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
+                     m_object_name.IsEmpty() ? "" : ")");
+}
+
+Module::~Module()
+{
+    // Lock our module down while we tear everything down to make sure
+    // we don't get any access to the module while it is being destroyed
+    Mutex::Locker locker (m_mutex);
+    // Scope for locker below...
+    {
+        Mutex::Locker locker (GetAllocationModuleCollectionMutex());
+        ModuleCollection &modules = GetModuleCollection();
+        ModuleCollection::iterator end = modules.end();
+        ModuleCollection::iterator pos = std::find(modules.begin(), end, this);
+        assert (pos != end);
+        modules.erase(pos);
+    }
+    Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES));
+    if (log)
+        log->Printf ("%p Module::~Module((%s) '%s%s%s%s')",
+                     this,
+                     m_arch.GetArchitectureName(),
+                     m_file.GetPath().c_str(),
+                     m_object_name.IsEmpty() ? "" : "(",
+                     m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
+                     m_object_name.IsEmpty() ? "" : ")");
+    // Release any auto pointers before we start tearing down our member 
+    // variables since the object file and symbol files might need to make
+    // function calls back into this module object. The ordering is important
+    // here because symbol files can require the module object file. So we tear
+    // down the symbol file first, then the object file.
+    m_sections_ap.reset();
+    m_symfile_ap.reset();
+    m_objfile_sp.reset();
+}
+
+ObjectFile *
+Module::GetMemoryObjectFile (const lldb::ProcessSP &process_sp, lldb::addr_t header_addr, Error &error)
+{
+    if (m_objfile_sp)
+    {
+        error.SetErrorString ("object file already exists");
+    }
+    else
+    {
+        Mutex::Locker locker (m_mutex);
+        if (process_sp)
+        {
+            m_did_load_objfile = true;
+            std::unique_ptr<DataBufferHeap> data_ap (new DataBufferHeap (512, 0));
+            Error readmem_error;
+            const size_t bytes_read = process_sp->ReadMemory (header_addr, 
+                                                              data_ap->GetBytes(), 
+                                                              data_ap->GetByteSize(), 
+                                                              readmem_error);
+            if (bytes_read == 512)
+            {
+                DataBufferSP data_sp(data_ap.release());
+                m_objfile_sp = ObjectFile::FindPlugin(shared_from_this(), process_sp, header_addr, data_sp);
+                if (m_objfile_sp)
+                {
+                    StreamString s;
+                    s.Printf("0x%16.16" PRIx64, header_addr);
+                    m_object_name.SetCString (s.GetData());
+
+                    // Once we get the object file, update our module with the object file's
+                    // architecture since it might differ in vendor/os if some parts were
+                    // unknown.
+                    m_objfile_sp->GetArchitecture (m_arch);
+                }
+                else
+                {
+                    error.SetErrorString ("unable to find suitable object file plug-in");
+                }
+            }
+            else
+            {
+                error.SetErrorStringWithFormat ("unable to read header from memory: %s", readmem_error.AsCString());
+            }
+        }
+        else
+        {
+            error.SetErrorString ("invalid process");
+        }
+    }
+    return m_objfile_sp.get();
+}
+
+
+const lldb_private::UUID&
+Module::GetUUID()
+{
+    Mutex::Locker locker (m_mutex);
+    if (m_did_parse_uuid == false)
+    {
+        ObjectFile * obj_file = GetObjectFile ();
+
+        if (obj_file != NULL)
+        {
+            obj_file->GetUUID(&m_uuid);
+            m_did_parse_uuid = true;
+        }
+    }
+    return m_uuid;
+}
+
+ClangASTContext &
+Module::GetClangASTContext ()
+{
+    Mutex::Locker locker (m_mutex);
+    if (m_did_init_ast == false)
+    {
+        ObjectFile * objfile = GetObjectFile();
+        ArchSpec object_arch;
+        if (objfile && objfile->GetArchitecture(object_arch))
+        {
+            m_did_init_ast = true;
+
+            // LLVM wants this to be set to iOS or MacOSX; if we're working on
+            // a bare-boards type image, change the triple for llvm's benefit.
+            if (object_arch.GetTriple().getVendor() == llvm::Triple::Apple 
+                && object_arch.GetTriple().getOS() == llvm::Triple::UnknownOS)
+            {
+                if (object_arch.GetTriple().getArch() == llvm::Triple::arm || 
+                    object_arch.GetTriple().getArch() == llvm::Triple::thumb)
+                {
+                    object_arch.GetTriple().setOS(llvm::Triple::IOS);
+                }
+                else
+                {
+                    object_arch.GetTriple().setOS(llvm::Triple::MacOSX);
+                }
+            }
+            m_ast.SetArchitecture (object_arch);
+        }
+    }
+    return m_ast;
+}
+
+void
+Module::ParseAllDebugSymbols()
+{
+    Mutex::Locker locker (m_mutex);
+    size_t num_comp_units = GetNumCompileUnits();
+    if (num_comp_units == 0)
+        return;
+
+    SymbolContext sc;
+    sc.module_sp = shared_from_this();
+    SymbolVendor *symbols = GetSymbolVendor ();
+
+    for (size_t cu_idx = 0; cu_idx < num_comp_units; cu_idx++)
+    {
+        sc.comp_unit = symbols->GetCompileUnitAtIndex(cu_idx).get();
+        if (sc.comp_unit)
+        {
+            sc.function = NULL;
+            symbols->ParseVariablesForContext(sc);
+
+            symbols->ParseCompileUnitFunctions(sc);
+
+            for (size_t func_idx = 0; (sc.function = sc.comp_unit->GetFunctionAtIndex(func_idx).get()) != NULL; ++func_idx)
+            {
+                symbols->ParseFunctionBlocks(sc);
+
+                // Parse the variables for this function and all its blocks
+                symbols->ParseVariablesForContext(sc);
+            }
+
+
+            // Parse all types for this compile unit
+            sc.function = NULL;
+            symbols->ParseTypes(sc);
+        }
+    }
+}
+
+void
+Module::CalculateSymbolContext(SymbolContext* sc)
+{
+    sc->module_sp = shared_from_this();
+}
+
+ModuleSP
+Module::CalculateSymbolContextModule ()
+{
+    return shared_from_this();
+}
+
+void
+Module::DumpSymbolContext(Stream *s)
+{
+    s->Printf(", Module{%p}", this);
+}
+
+size_t
+Module::GetNumCompileUnits()
+{
+    Mutex::Locker locker (m_mutex);
+    Timer scoped_timer(__PRETTY_FUNCTION__, "Module::GetNumCompileUnits (module = %p)", this);
+    SymbolVendor *symbols = GetSymbolVendor ();
+    if (symbols)
+        return symbols->GetNumCompileUnits();
+    return 0;
+}
+
+CompUnitSP
+Module::GetCompileUnitAtIndex (size_t index)
+{
+    Mutex::Locker locker (m_mutex);
+    size_t num_comp_units = GetNumCompileUnits ();
+    CompUnitSP cu_sp;
+
+    if (index < num_comp_units)
+    {
+        SymbolVendor *symbols = GetSymbolVendor ();
+        if (symbols)
+            cu_sp = symbols->GetCompileUnitAtIndex(index);
+    }
+    return cu_sp;
+}
+
+bool
+Module::ResolveFileAddress (lldb::addr_t vm_addr, Address& so_addr)
+{
+    Mutex::Locker locker (m_mutex);
+    Timer scoped_timer(__PRETTY_FUNCTION__, "Module::ResolveFileAddress (vm_addr = 0x%" PRIx64 ")", vm_addr);
+    SectionList *section_list = GetSectionList();
+    if (section_list)
+        return so_addr.ResolveAddressUsingFileSections(vm_addr, section_list);
+    return false;
+}
+
+uint32_t
+Module::ResolveSymbolContextForAddress (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc)
+{
+    Mutex::Locker locker (m_mutex);
+    uint32_t resolved_flags = 0;
+
+    // Clear the result symbol context in case we don't find anything, but don't clear the target
+    sc.Clear(false);
+
+    // Get the section from the section/offset address.
+    SectionSP section_sp (so_addr.GetSection());
+
+    // Make sure the section matches this module before we try and match anything
+    if (section_sp && section_sp->GetModule().get() == this)
+    {
+        // If the section offset based address resolved itself, then this
+        // is the right module.
+        sc.module_sp = shared_from_this();
+        resolved_flags |= eSymbolContextModule;
+
+        // Resolve the compile unit, function, block, line table or line
+        // entry if requested.
+        if (resolve_scope & eSymbolContextCompUnit    ||
+            resolve_scope & eSymbolContextFunction    ||
+            resolve_scope & eSymbolContextBlock       ||
+            resolve_scope & eSymbolContextLineEntry   )
+        {
+            SymbolVendor *symbols = GetSymbolVendor ();
+            if (symbols)
+                resolved_flags |= symbols->ResolveSymbolContext (so_addr, resolve_scope, sc);
+        }
+
+        // Resolve the symbol if requested, but don't re-look it up if we've already found it.
+        if (resolve_scope & eSymbolContextSymbol && !(resolved_flags & eSymbolContextSymbol))
+        {
+            SymbolVendor* sym_vendor = GetSymbolVendor();
+            if (sym_vendor)
+            {
+                Symtab *symtab = sym_vendor->GetSymtab();
+                if (symtab)
+                {
+                    if (so_addr.IsSectionOffset())
+                    {
+                        sc.symbol = symtab->FindSymbolContainingFileAddress(so_addr.GetFileAddress());
+                        if (sc.symbol)
+                            resolved_flags |= eSymbolContextSymbol;
+                    }
+                }
+            }
+        }
+    }
+    return resolved_flags;
+}
+
+uint32_t
+Module::ResolveSymbolContextForFilePath 
+(
+    const char *file_path, 
+    uint32_t line, 
+    bool check_inlines, 
+    uint32_t resolve_scope, 
+    SymbolContextList& sc_list
+)
+{
+    FileSpec file_spec(file_path, false);
+    return ResolveSymbolContextsForFileSpec (file_spec, line, check_inlines, resolve_scope, sc_list);
+}
+
+uint32_t
+Module::ResolveSymbolContextsForFileSpec (const FileSpec &file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
+{
+    Mutex::Locker locker (m_mutex);
+    Timer scoped_timer(__PRETTY_FUNCTION__,
+                       "Module::ResolveSymbolContextForFilePath (%s:%u, check_inlines = %s, resolve_scope = 0x%8.8x)",
+                       file_spec.GetPath().c_str(),
+                       line,
+                       check_inlines ? "yes" : "no",
+                       resolve_scope);
+
+    const uint32_t initial_count = sc_list.GetSize();
+
+    SymbolVendor *symbols = GetSymbolVendor  ();
+    if (symbols)
+        symbols->ResolveSymbolContext (file_spec, line, check_inlines, resolve_scope, sc_list);
+
+    return sc_list.GetSize() - initial_count;
+}
+
+
+size_t
+Module::FindGlobalVariables (const ConstString &name,
+                             const ClangNamespaceDecl *namespace_decl,
+                             bool append,
+                             size_t max_matches,
+                             VariableList& variables)
+{
+    SymbolVendor *symbols = GetSymbolVendor ();
+    if (symbols)
+        return symbols->FindGlobalVariables(name, namespace_decl, append, max_matches, variables);
+    return 0;
+}
+
+size_t
+Module::FindGlobalVariables (const RegularExpression& regex,
+                             bool append,
+                             size_t max_matches,
+                             VariableList& variables)
+{
+    SymbolVendor *symbols = GetSymbolVendor ();
+    if (symbols)
+        return symbols->FindGlobalVariables(regex, append, max_matches, variables);
+    return 0;
+}
+
+size_t
+Module::FindCompileUnits (const FileSpec &path,
+                          bool append,
+                          SymbolContextList &sc_list)
+{
+    if (!append)
+        sc_list.Clear();
+    
+    const size_t start_size = sc_list.GetSize();
+    const size_t num_compile_units = GetNumCompileUnits();
+    SymbolContext sc;
+    sc.module_sp = shared_from_this();
+    const bool compare_directory = path.GetDirectory();
+    for (size_t i=0; i<num_compile_units; ++i)
+    {
+        sc.comp_unit = GetCompileUnitAtIndex(i).get();
+        if (sc.comp_unit)
+        {
+            if (FileSpec::Equal (*sc.comp_unit, path, compare_directory))
+                sc_list.Append(sc);
+        }
+    }
+    return sc_list.GetSize() - start_size;
+}
+
+size_t
+Module::FindFunctions (const ConstString &name,
+                       const ClangNamespaceDecl *namespace_decl,
+                       uint32_t name_type_mask,
+                       bool include_symbols,
+                       bool include_inlines,
+                       bool append, 
+                       SymbolContextList& sc_list)
+{
+    if (!append)
+        sc_list.Clear();
+
+    const size_t old_size = sc_list.GetSize();
+
+    // Find all the functions (not symbols, but debug information functions...
+    SymbolVendor *symbols = GetSymbolVendor ();
+    
+    if (name_type_mask & eFunctionNameTypeAuto)
+    {
+        ConstString lookup_name;
+        uint32_t lookup_name_type_mask = 0;
+        bool match_name_after_lookup = false;
+        Module::PrepareForFunctionNameLookup (name,
+                                              name_type_mask,
+                                              lookup_name,
+                                              lookup_name_type_mask,
+                                              match_name_after_lookup);
+        
+        if (symbols)
+        {
+            symbols->FindFunctions(lookup_name,
+                                   namespace_decl,
+                                   lookup_name_type_mask,
+                                   include_inlines,
+                                   append,
+                                   sc_list);
+        
+            // Now check our symbol table for symbols that are code symbols if requested
+            if (include_symbols)
+            {
+                Symtab *symtab = symbols->GetSymtab();
+                if (symtab)
+                    symtab->FindFunctionSymbols(lookup_name, lookup_name_type_mask, sc_list);
+            }
+        }
+
+        if (match_name_after_lookup)
+        {
+            SymbolContext sc;
+            size_t i = old_size;
+            while (i<sc_list.GetSize())
+            {
+                if (sc_list.GetContextAtIndex(i, sc))
+                {
+                    const char *func_name = sc.GetFunctionName().GetCString();
+                    if (func_name && strstr (func_name, name.GetCString()) == NULL)
+                    {
+                        // Remove the current context
+                        sc_list.RemoveContextAtIndex(i);
+                        // Don't increment i and continue in the loop
+                        continue;
+                    }
+                }
+                ++i;
+            }
+        }
+    }
+    else
+    {
+        if (symbols)
+        {
+            symbols->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, append, sc_list);
+
+            // Now check our symbol table for symbols that are code symbols if requested
+            if (include_symbols)
+            {
+                Symtab *symtab = symbols->GetSymtab();
+                if (symtab)
+                    symtab->FindFunctionSymbols(name, name_type_mask, sc_list);
+            }
+        }
+    }
+
+    return sc_list.GetSize() - old_size;
+}
+
+size_t
+Module::FindFunctions (const RegularExpression& regex, 
+                       bool include_symbols,
+                       bool include_inlines,
+                       bool append, 
+                       SymbolContextList& sc_list)
+{
+    if (!append)
+        sc_list.Clear();
+    
+    const size_t start_size = sc_list.GetSize();
+    
+    SymbolVendor *symbols = GetSymbolVendor ();
+    if (symbols)
+    {
+        symbols->FindFunctions(regex, include_inlines, append, sc_list);
+        
+        // Now check our symbol table for symbols that are code symbols if requested
+        if (include_symbols)
+        {
+            Symtab *symtab = symbols->GetSymtab();
+            if (symtab)
+            {
+                std::vector<uint32_t> symbol_indexes;
+                symtab->AppendSymbolIndexesMatchingRegExAndType (regex, eSymbolTypeAny, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
+                const size_t num_matches = symbol_indexes.size();
+                if (num_matches)
+                {
+                    SymbolContext sc(this);
+                    const size_t end_functions_added_index = sc_list.GetSize();
+                    size_t num_functions_added_to_sc_list = end_functions_added_index - start_size;
+                    if (num_functions_added_to_sc_list == 0)
+                    {
+                        // No functions were added, just symbols, so we can just append them
+                        for (size_t i=0; i<num_matches; ++i)
+                        {
+                            sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
+                            SymbolType sym_type = sc.symbol->GetType();
+                            if (sc.symbol && (sym_type == eSymbolTypeCode ||
+                                              sym_type == eSymbolTypeResolver))
+                                sc_list.Append(sc);
+                        }
+                    }
+                    else
+                    {
+                        typedef std::map<lldb::addr_t, uint32_t> FileAddrToIndexMap;
+                        FileAddrToIndexMap file_addr_to_index;
+                        for (size_t i=start_size; i<end_functions_added_index; ++i)
+                        {
+                            const SymbolContext &sc = sc_list[i];
+                            if (sc.block)
+                                continue;
+                            file_addr_to_index[sc.function->GetAddressRange().GetBaseAddress().GetFileAddress()] = i;
+                        }
+
+                        FileAddrToIndexMap::const_iterator end = file_addr_to_index.end();
+                        // Functions were added so we need to merge symbols into any
+                        // existing function symbol contexts
+                        for (size_t i=start_size; i<num_matches; ++i)
+                        {
+                            sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
+                            SymbolType sym_type = sc.symbol->GetType();
+                            if (sc.symbol && (sym_type == eSymbolTypeCode ||
+                                              sym_type == eSymbolTypeResolver))
+                            {
+                                FileAddrToIndexMap::const_iterator pos = file_addr_to_index.find(sc.symbol->GetAddress().GetFileAddress());
+                                if (pos == end)
+                                    sc_list.Append(sc);
+                                else
+                                    sc_list[pos->second].symbol = sc.symbol;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return sc_list.GetSize() - start_size;
+}
+
+size_t
+Module::FindTypes_Impl (const SymbolContext& sc,
+                        const ConstString &name,
+                        const ClangNamespaceDecl *namespace_decl,
+                        bool append,
+                        size_t max_matches,
+                        TypeList& types)
+{
+    Timer scoped_timer(__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
+    if (sc.module_sp.get() == NULL || sc.module_sp.get() == this)
+    {
+        SymbolVendor *symbols = GetSymbolVendor ();
+        if (symbols)
+            return symbols->FindTypes(sc, name, namespace_decl, append, max_matches, types);
+    }
+    return 0;
+}
+
+size_t
+Module::FindTypesInNamespace (const SymbolContext& sc,
+                              const ConstString &type_name,
+                              const ClangNamespaceDecl *namespace_decl,
+                              size_t max_matches,
+                              TypeList& type_list)
+{
+    const bool append = true;
+    return FindTypes_Impl(sc, type_name, namespace_decl, append, max_matches, type_list);
+}
+
+lldb::TypeSP
+Module::FindFirstType (const SymbolContext& sc,
+                       const ConstString &name,
+                       bool exact_match)
+{
+    TypeList type_list;
+    const size_t num_matches = FindTypes (sc, name, exact_match, 1, type_list);
+    if (num_matches)
+        return type_list.GetTypeAtIndex(0);
+    return TypeSP();
+}
+
+
+size_t
+Module::FindTypes (const SymbolContext& sc,
+                   const ConstString &name,
+                   bool exact_match,
+                   size_t max_matches,
+                   TypeList& types)
+{
+    size_t num_matches = 0;
+    const char *type_name_cstr = name.GetCString();
+    std::string type_scope;
+    std::string type_basename;
+    const bool append = true;
+    TypeClass type_class = eTypeClassAny;
+    if (Type::GetTypeScopeAndBasename (type_name_cstr, type_scope, type_basename, type_class))
+    {
+        // Check if "name" starts with "::" which means the qualified type starts
+        // from the root namespace and implies and exact match. The typenames we
+        // get back from clang do not start with "::" so we need to strip this off
+        // in order to get the qualfied names to match
+
+        if (type_scope.size() >= 2 && type_scope[0] == ':' && type_scope[1] == ':')
+        {
+            type_scope.erase(0,2);
+            exact_match = true;
+        }
+        ConstString type_basename_const_str (type_basename.c_str());
+        if (FindTypes_Impl(sc, type_basename_const_str, NULL, append, max_matches, types))
+        {
+            types.RemoveMismatchedTypes (type_scope, type_basename, type_class, exact_match);
+            num_matches = types.GetSize();
+        }
+    }
+    else
+    {
+        // The type is not in a namespace/class scope, just search for it by basename
+        if (type_class != eTypeClassAny)
+        {
+            // The "type_name_cstr" will have been modified if we have a valid type class
+            // prefix (like "struct", "class", "union", "typedef" etc).
+            num_matches = FindTypes_Impl(sc, ConstString(type_name_cstr), NULL, append, max_matches, types);
+            types.RemoveMismatchedTypes (type_class);
+            num_matches = types.GetSize();
+        }
+        else
+        {
+            num_matches = FindTypes_Impl(sc, name, NULL, append, max_matches, types);
+        }
+    }
+    
+    return num_matches;
+    
+}
+
+SymbolVendor*
+Module::GetSymbolVendor (bool can_create, lldb_private::Stream *feedback_strm)
+{
+    Mutex::Locker locker (m_mutex);
+    if (m_did_load_symbol_vendor == false && can_create)
+    {
+        ObjectFile *obj_file = GetObjectFile ();
+        if (obj_file != NULL)
+        {
+            Timer scoped_timer(__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
+            m_symfile_ap.reset(SymbolVendor::FindPlugin(shared_from_this(), feedback_strm));
+            m_did_load_symbol_vendor = true;
+        }
+    }
+    return m_symfile_ap.get();
+}
+
+void
+Module::SetFileSpecAndObjectName (const FileSpec &file, const ConstString &object_name)
+{
+    // Container objects whose paths do not specify a file directly can call
+    // this function to correct the file and object names.
+    m_file = file;
+    m_mod_time = file.GetModificationTime();
+    m_object_name = object_name;
+}
+
+const ArchSpec&
+Module::GetArchitecture () const
+{
+    return m_arch;
+}
+
+std::string
+Module::GetSpecificationDescription () const
+{
+    std::string spec(GetFileSpec().GetPath());
+    if (m_object_name)
+    {
+        spec += '(';
+        spec += m_object_name.GetCString();
+        spec += ')';
+    }
+    return spec;
+}
+
+void
+Module::GetDescription (Stream *s, lldb::DescriptionLevel level)
+{
+    Mutex::Locker locker (m_mutex);
+
+    if (level >= eDescriptionLevelFull)
+    {
+        if (m_arch.IsValid())
+            s->Printf("(%s) ", m_arch.GetArchitectureName());
+    }
+
+    if (level == eDescriptionLevelBrief)
+    {
+        const char *filename = m_file.GetFilename().GetCString();
+        if (filename)
+            s->PutCString (filename);
+    }
+    else
+    {
+        char path[PATH_MAX];
+        if (m_file.GetPath(path, sizeof(path)))
+            s->PutCString(path);
+    }
+
+    const char *object_name = m_object_name.GetCString();
+    if (object_name)
+        s->Printf("(%s)", object_name);
+}
+
+void
+Module::ReportError (const char *format, ...)
+{
+    if (format && format[0])
+    {
+        StreamString strm;
+        strm.PutCString("error: ");
+        GetDescription(&strm, lldb::eDescriptionLevelBrief);
+        strm.PutChar (' ');
+        va_list args;
+        va_start (args, format);
+        strm.PrintfVarArg(format, args);
+        va_end (args);
+        
+        const int format_len = strlen(format);
+        if (format_len > 0)
+        {
+            const char last_char = format[format_len-1];
+            if (last_char != '\n' || last_char != '\r')
+                strm.EOL();
+        }
+        Host::SystemLog (Host::eSystemLogError, "%s", strm.GetString().c_str());
+
+    }
+}
+
+bool
+Module::FileHasChanged () const
+{
+    if (m_file_has_changed == false)
+        m_file_has_changed = (m_file.GetModificationTime() != m_mod_time);
+    return m_file_has_changed;
+}
+
+void
+Module::ReportErrorIfModifyDetected (const char *format, ...)
+{
+    if (m_first_file_changed_log == false)
+    {
+        if (FileHasChanged ())
+        {
+            m_first_file_changed_log = true;
+            if (format)
+            {
+                StreamString strm;
+                strm.PutCString("error: the object file ");
+                GetDescription(&strm, lldb::eDescriptionLevelFull);
+                strm.PutCString (" has been modified\n");
+                
+                va_list args;
+                va_start (args, format);
+                strm.PrintfVarArg(format, args);
+                va_end (args);
+                
+                const int format_len = strlen(format);
+                if (format_len > 0)
+                {
+                    const char last_char = format[format_len-1];
+                    if (last_char != '\n' || last_char != '\r')
+                        strm.EOL();
+                }
+                strm.PutCString("The debug session should be aborted as the original debug information has been overwritten.\n");
+                Host::SystemLog (Host::eSystemLogError, "%s", strm.GetString().c_str());
+            }
+        }
+    }
+}
+
+void
+Module::ReportWarning (const char *format, ...)
+{
+    if (format && format[0])
+    {
+        StreamString strm;
+        strm.PutCString("warning: ");
+        GetDescription(&strm, lldb::eDescriptionLevelFull);
+        strm.PutChar (' ');
+        
+        va_list args;
+        va_start (args, format);
+        strm.PrintfVarArg(format, args);
+        va_end (args);
+        
+        const int format_len = strlen(format);
+        if (format_len > 0)
+        {
+            const char last_char = format[format_len-1];
+            if (last_char != '\n' || last_char != '\r')
+                strm.EOL();
+        }
+        Host::SystemLog (Host::eSystemLogWarning, "%s", strm.GetString().c_str());        
+    }
+}
+
+void
+Module::LogMessage (Log *log, const char *format, ...)
+{
+    if (log)
+    {
+        StreamString log_message;
+        GetDescription(&log_message, lldb::eDescriptionLevelFull);
+        log_message.PutCString (": ");
+        va_list args;
+        va_start (args, format);
+        log_message.PrintfVarArg (format, args);
+        va_end (args);
+        log->PutCString(log_message.GetString().c_str());
+    }
+}
+
+void
+Module::LogMessageVerboseBacktrace (Log *log, const char *format, ...)
+{
+    if (log)
+    {
+        StreamString log_message;
+        GetDescription(&log_message, lldb::eDescriptionLevelFull);
+        log_message.PutCString (": ");
+        va_list args;
+        va_start (args, format);
+        log_message.PrintfVarArg (format, args);
+        va_end (args);
+        if (log->GetVerbose())
+            Host::Backtrace (log_message, 1024);
+        log->PutCString(log_message.GetString().c_str());
+    }
+}
+
+void
+Module::Dump(Stream *s)
+{
+    Mutex::Locker locker (m_mutex);
+    //s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
+    s->Indent();
+    s->Printf("Module %s%s%s%s\n",
+              m_file.GetPath().c_str(),
+              m_object_name ? "(" : "",
+              m_object_name ? m_object_name.GetCString() : "",
+              m_object_name ? ")" : "");
+
+    s->IndentMore();
+    
+    ObjectFile *objfile = GetObjectFile ();
+    if (objfile)
+        objfile->Dump(s);
+
+    SymbolVendor *symbols = GetSymbolVendor ();
+    if (symbols)
+        symbols->Dump(s);
+
+    s->IndentLess();
+}
+
+
+TypeList*
+Module::GetTypeList ()
+{
+    SymbolVendor *symbols = GetSymbolVendor ();
+    if (symbols)
+        return &symbols->GetTypeList();
+    return NULL;
+}
+
+const ConstString &
+Module::GetObjectName() const
+{
+    return m_object_name;
+}
+
+ObjectFile *
+Module::GetObjectFile()
+{
+    Mutex::Locker locker (m_mutex);
+    if (m_did_load_objfile == false)
+    {
+        Timer scoped_timer(__PRETTY_FUNCTION__,
+                           "Module::GetObjectFile () module = %s", GetFileSpec().GetFilename().AsCString(""));
+        DataBufferSP data_sp;
+        lldb::offset_t data_offset = 0;
+        const lldb::offset_t file_size = m_file.GetByteSize();
+        if (file_size > m_object_offset)
+        {
+            m_did_load_objfile = true;
+            m_objfile_sp = ObjectFile::FindPlugin (shared_from_this(),
+                                                   &m_file,
+                                                   m_object_offset,
+                                                   file_size - m_object_offset,
+                                                   data_sp,
+                                                   data_offset);
+            if (m_objfile_sp)
+            {
+                // Once we get the object file, update our module with the object file's 
+                // architecture since it might differ in vendor/os if some parts were
+                // unknown.
+                m_objfile_sp->GetArchitecture (m_arch);
+            }
+        }
+    }
+    return m_objfile_sp.get();
+}
+
+SectionList *
+Module::GetSectionList()
+{
+    // Populate m_unified_sections_ap with sections from objfile.
+    if (m_sections_ap.get() == NULL)
+    {
+        ObjectFile *obj_file = GetObjectFile();
+        if (obj_file)
+            obj_file->CreateSections(*GetUnifiedSectionList());
+    }
+    return m_sections_ap.get();
+}
+
+SectionList *
+Module::GetUnifiedSectionList()
+{
+    // Populate m_unified_sections_ap with sections from objfile.
+    if (m_sections_ap.get() == NULL)
+        m_sections_ap.reset(new SectionList());
+    return m_sections_ap.get();
+}
+
+const Symbol *
+Module::FindFirstSymbolWithNameAndType (const ConstString &name, SymbolType symbol_type)
+{
+    Timer scoped_timer(__PRETTY_FUNCTION__,
+                       "Module::FindFirstSymbolWithNameAndType (name = %s, type = %i)",
+                       name.AsCString(),
+                       symbol_type);
+    SymbolVendor* sym_vendor = GetSymbolVendor();
+    if (sym_vendor)
+    {
+        Symtab *symtab = sym_vendor->GetSymtab();
+        if (symtab)
+            return symtab->FindFirstSymbolWithNameAndType (name, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny);
+    }
+    return NULL;
+}
+void
+Module::SymbolIndicesToSymbolContextList (Symtab *symtab, std::vector<uint32_t> &symbol_indexes, SymbolContextList &sc_list)
+{
+    // No need to protect this call using m_mutex all other method calls are
+    // already thread safe.
+
+    size_t num_indices = symbol_indexes.size();
+    if (num_indices > 0)
+    {
+        SymbolContext sc;
+        CalculateSymbolContext (&sc);
+        for (size_t i = 0; i < num_indices; i++)
+        {
+            sc.symbol = symtab->SymbolAtIndex (symbol_indexes[i]);
+            if (sc.symbol)
+                sc_list.Append (sc);
+        }
+    }
+}
+
+size_t
+Module::FindFunctionSymbols (const ConstString &name,
+                             uint32_t name_type_mask,
+                             SymbolContextList& sc_list)
+{
+    Timer scoped_timer(__PRETTY_FUNCTION__,
+                       "Module::FindSymbolsFunctions (name = %s, mask = 0x%8.8x)",
+                       name.AsCString(),
+                       name_type_mask);
+    SymbolVendor* sym_vendor = GetSymbolVendor();
+    if (sym_vendor)
+    {
+        Symtab *symtab = sym_vendor->GetSymtab();
+        if (symtab)
+            return symtab->FindFunctionSymbols (name, name_type_mask, sc_list);
+    }
+    return 0;
+}
+
+size_t
+Module::FindSymbolsWithNameAndType (const ConstString &name, SymbolType symbol_type, SymbolContextList &sc_list)
+{
+    // No need to protect this call using m_mutex all other method calls are
+    // already thread safe.
+
+
+    Timer scoped_timer(__PRETTY_FUNCTION__,
+                       "Module::FindSymbolsWithNameAndType (name = %s, type = %i)",
+                       name.AsCString(),
+                       symbol_type);
+    const size_t initial_size = sc_list.GetSize();
+    SymbolVendor* sym_vendor = GetSymbolVendor();
+    if (sym_vendor)
+    {
+        Symtab *symtab = sym_vendor->GetSymtab();
+        if (symtab)
+        {
+            std::vector<uint32_t> symbol_indexes;
+            symtab->FindAllSymbolsWithNameAndType (name, symbol_type, symbol_indexes);
+            SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list);
+        }
+    }
+    return sc_list.GetSize() - initial_size;
+}
+
+size_t
+Module::FindSymbolsMatchingRegExAndType (const RegularExpression &regex, SymbolType symbol_type, SymbolContextList &sc_list)
+{
+    // No need to protect this call using m_mutex all other method calls are
+    // already thread safe.
+
+    Timer scoped_timer(__PRETTY_FUNCTION__,
+                       "Module::FindSymbolsMatchingRegExAndType (regex = %s, type = %i)",
+                       regex.GetText(),
+                       symbol_type);
+    const size_t initial_size = sc_list.GetSize();
+    SymbolVendor* sym_vendor = GetSymbolVendor();
+    if (sym_vendor)
+    {
+        Symtab *symtab = sym_vendor->GetSymtab();
+        if (symtab)
+        {
+            std::vector<uint32_t> symbol_indexes;
+            symtab->FindAllSymbolsMatchingRexExAndType (regex, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
+            SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list);
+        }
+    }
+    return sc_list.GetSize() - initial_size;
+}
+
+void
+Module::SetSymbolFileFileSpec (const FileSpec &file)
+{
+    // Remove any sections in the unified section list that come from the current symbol vendor.
+    if (m_symfile_ap)
+    {
+        SectionList *section_list = GetSectionList();
+        SymbolFile *symbol_file = m_symfile_ap->GetSymbolFile();
+        if (section_list && symbol_file)
+        {
+            ObjectFile *obj_file = symbol_file->GetObjectFile();
+            // Make sure we have an object file and that the symbol vendor's objfile isn't
+            // the same as the module's objfile before we remove any sections for it...
+            if (obj_file && obj_file != m_objfile_sp.get())
+            {
+                size_t num_sections = section_list->GetNumSections (0);
+                for (size_t idx = num_sections; idx > 0; --idx)
+                {
+                    lldb::SectionSP section_sp (section_list->GetSectionAtIndex (idx - 1));
+                    if (section_sp->GetObjectFile() == obj_file)
+                    {
+                        section_list->DeleteSection (idx - 1);
+                    }
+                }
+            }
+        }
+    }
+
+    m_symfile_spec = file;
+    m_symfile_ap.reset();
+    m_did_load_symbol_vendor = false;
+}
+
+bool
+Module::IsExecutable ()
+{
+    if (GetObjectFile() == NULL)
+        return false;
+    else
+        return GetObjectFile()->IsExecutable();
+}
+
+bool
+Module::IsLoadedInTarget (Target *target)
+{
+    ObjectFile *obj_file = GetObjectFile();
+    if (obj_file)
+    {
+        SectionList *sections = GetSectionList();
+        if (sections != NULL)
+        {
+            size_t num_sections = sections->GetSize();
+            for (size_t sect_idx = 0; sect_idx < num_sections; sect_idx++)
+            {
+                SectionSP section_sp = sections->GetSectionAtIndex(sect_idx);
+                if (section_sp->GetLoadBaseAddress(target) != LLDB_INVALID_ADDRESS)
+                {
+                    return true;
+                }
+            }
+        }
+    }
+    return false;
+}
+
+bool
+Module::LoadScriptingResourceInTarget (Target *target, Error& error, Stream* feedback_stream)
+{
+    if (!target)
+    {
+        error.SetErrorString("invalid destination Target");
+        return false;
+    }
+    
+    LoadScriptFromSymFile shoud_load = target->TargetProperties::GetLoadScriptFromSymbolFile();
+    
+    Debugger &debugger = target->GetDebugger();
+    const ScriptLanguage script_language = debugger.GetScriptLanguage();
+    if (script_language != eScriptLanguageNone)
+    {
+        
+        PlatformSP platform_sp(target->GetPlatform());
+        
+        if (!platform_sp)
+        {
+            error.SetErrorString("invalid Platform");
+            return false;
+        }
+
+        FileSpecList file_specs = platform_sp->LocateExecutableScriptingResources (target,
+                                                                                   *this);
+        
+        
+        const uint32_t num_specs = file_specs.GetSize();
+        if (num_specs)
+        {
+            ScriptInterpreter *script_interpreter = debugger.GetCommandInterpreter().GetScriptInterpreter();
+            if (script_interpreter)
+            {
+                for (uint32_t i=0; i<num_specs; ++i)
+                {
+                    FileSpec scripting_fspec (file_specs.GetFileSpecAtIndex(i));
+                    if (scripting_fspec && scripting_fspec.Exists())
+                    {
+                        if (shoud_load == eLoadScriptFromSymFileFalse)
+                            return false;
+                        if (shoud_load == eLoadScriptFromSymFileWarn)
+                        {
+                            if (feedback_stream)
+                                feedback_stream->Printf("warning: '%s' contains a debug script. To run this script in "
+                                                        "this debug session:\n\n    command script import \"%s\"\n\n"
+                                                        "To run all discovered debug scripts in this session:\n\n"
+                                                        "    settings set target.load-script-from-symbol-file true\n",
+                                                        GetFileSpec().GetFileNameStrippingExtension().GetCString(),
+                                                        scripting_fspec.GetPath().c_str());
+                            return false;
+                        }
+                        StreamString scripting_stream;
+                        scripting_fspec.Dump(&scripting_stream);
+                        const bool can_reload = true;
+                        const bool init_lldb_globals = false;
+                        bool did_load = script_interpreter->LoadScriptingModule(scripting_stream.GetData(),
+                                                                                can_reload,
+                                                                                init_lldb_globals,
+                                                                                error);
+                        if (!did_load)
+                            return false;
+                    }
+                }
+            }
+            else
+            {
+                error.SetErrorString("invalid ScriptInterpreter");
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+bool
+Module::SetArchitecture (const ArchSpec &new_arch)
+{
+    if (!m_arch.IsValid())
+    {
+        m_arch = new_arch;
+        return true;
+    }    
+    return m_arch.IsExactMatch(new_arch);
+}
+
+bool 
+Module::SetLoadAddress (Target &target, lldb::addr_t offset, bool &changed)
+{
+    size_t num_loaded_sections = 0;
+    SectionList *section_list = GetSectionList ();
+    if (section_list)
+    {
+        const size_t num_sections = section_list->GetSize();
+        size_t sect_idx = 0;
+        for (sect_idx = 0; sect_idx < num_sections; ++sect_idx)
+        {
+            // Iterate through the object file sections to find the
+            // first section that starts of file offset zero and that
+            // has bytes in the file...
+            SectionSP section_sp (section_list->GetSectionAtIndex (sect_idx));
+            // Only load non-thread specific sections when given a slide
+            if (section_sp && !section_sp->IsThreadSpecific())
+            {
+                if (target.GetSectionLoadList().SetSectionLoadAddress (section_sp, section_sp->GetFileAddress() + offset))
+                    ++num_loaded_sections;
+            }
+        }
+    }
+    changed = num_loaded_sections > 0;
+    return num_loaded_sections > 0;
+}
+
+
+bool
+Module::MatchesModuleSpec (const ModuleSpec &module_ref)
+{
+    const UUID &uuid = module_ref.GetUUID();
+    
+    if (uuid.IsValid())
+    {
+        // If the UUID matches, then nothing more needs to match...
+        if (uuid == GetUUID())
+            return true;
+        else
+            return false;
+    }
+    
+    const FileSpec &file_spec = module_ref.GetFileSpec();
+    if (file_spec)
+    {
+        if (!FileSpec::Equal (file_spec, m_file, file_spec.GetDirectory()))
+            return false;
+    }
+
+    const FileSpec &platform_file_spec = module_ref.GetPlatformFileSpec();
+    if (platform_file_spec)
+    {
+        if (!FileSpec::Equal (platform_file_spec, GetPlatformFileSpec (), platform_file_spec.GetDirectory()))
+            return false;
+    }
+    
+    const ArchSpec &arch = module_ref.GetArchitecture();
+    if (arch.IsValid())
+    {
+        if (!m_arch.IsCompatibleMatch(arch))
+            return false;
+    }
+    
+    const ConstString &object_name = module_ref.GetObjectName();
+    if (object_name)
+    {
+        if (object_name != GetObjectName())
+            return false;
+    }
+    return true;
+}
+
+bool
+Module::FindSourceFile (const FileSpec &orig_spec, FileSpec &new_spec) const
+{
+    Mutex::Locker locker (m_mutex);
+    return m_source_mappings.FindFile (orig_spec, new_spec);
+}
+
+bool
+Module::RemapSourceFile (const char *path, std::string &new_path) const
+{
+    Mutex::Locker locker (m_mutex);
+    return m_source_mappings.RemapPath(path, new_path);
+}
+
+uint32_t
+Module::GetVersion (uint32_t *versions, uint32_t num_versions)
+{
+    ObjectFile *obj_file = GetObjectFile();
+    if (obj_file)
+        return obj_file->GetVersion (versions, num_versions);
+        
+    if (versions && num_versions)
+    {
+        for (uint32_t i=0; i<num_versions; ++i)
+            versions[i] = UINT32_MAX;
+    }
+    return 0;
+}
+
+void
+Module::PrepareForFunctionNameLookup (const ConstString &name,
+                                      uint32_t name_type_mask,
+                                      ConstString &lookup_name,
+                                      uint32_t &lookup_name_type_mask,
+                                      bool &match_name_after_lookup)
+{
+    const char *name_cstr = name.GetCString();
+    lookup_name_type_mask = eFunctionNameTypeNone;
+    match_name_after_lookup = false;
+    const char *base_name_start = NULL;
+    const char *base_name_end = NULL;
+    
+    if (name_type_mask & eFunctionNameTypeAuto)
+    {
+        if (CPPLanguageRuntime::IsCPPMangledName (name_cstr))
+            lookup_name_type_mask = eFunctionNameTypeFull;
+        else if (ObjCLanguageRuntime::IsPossibleObjCMethodName (name_cstr))
+            lookup_name_type_mask = eFunctionNameTypeFull;
+        else
+        {
+            if (ObjCLanguageRuntime::IsPossibleObjCSelector(name_cstr))
+                lookup_name_type_mask |= eFunctionNameTypeSelector;
+            
+            CPPLanguageRuntime::MethodName cpp_method (name);
+            llvm::StringRef basename (cpp_method.GetBasename());
+            if (basename.empty())
+            {
+                if (CPPLanguageRuntime::StripNamespacesFromVariableName (name_cstr, base_name_start, base_name_end))
+                    lookup_name_type_mask |= (eFunctionNameTypeMethod | eFunctionNameTypeBase);
+            }
+            else
+            {
+                base_name_start = basename.data();
+                base_name_end = base_name_start + basename.size();
+                lookup_name_type_mask |= (eFunctionNameTypeMethod | eFunctionNameTypeBase);
+            }
+        }
+    }
+    else
+    {
+        lookup_name_type_mask = name_type_mask;
+        if (lookup_name_type_mask & eFunctionNameTypeMethod || name_type_mask & eFunctionNameTypeBase)
+        {
+            // If they've asked for a CPP method or function name and it can't be that, we don't
+            // even need to search for CPP methods or names.
+            CPPLanguageRuntime::MethodName cpp_method (name);
+            if (cpp_method.IsValid())
+            {
+                llvm::StringRef basename (cpp_method.GetBasename());
+                base_name_start = basename.data();
+                base_name_end = base_name_start + basename.size();
+
+                if (!cpp_method.GetQualifiers().empty())
+                {
+                    // There is a "const" or other qualifer following the end of the fucntion parens,
+                    // this can't be a eFunctionNameTypeBase
+                    lookup_name_type_mask &= ~(eFunctionNameTypeBase);
+                    if (lookup_name_type_mask == eFunctionNameTypeNone)
+                        return;
+                }
+            }
+            else
+            {
+                if (!CPPLanguageRuntime::StripNamespacesFromVariableName (name_cstr, base_name_start, base_name_end))
+                {
+                    lookup_name_type_mask &= ~(eFunctionNameTypeMethod | eFunctionNameTypeBase);
+                    if (lookup_name_type_mask == eFunctionNameTypeNone)
+                        return;
+                }
+            }
+        }
+        
+        if (lookup_name_type_mask & eFunctionNameTypeSelector)
+        {
+            if (!ObjCLanguageRuntime::IsPossibleObjCSelector(name_cstr))
+            {
+                lookup_name_type_mask &= ~(eFunctionNameTypeSelector);
+                if (lookup_name_type_mask == eFunctionNameTypeNone)
+                    return;
+            }
+        }
+    }
+    
+    if (base_name_start &&
+        base_name_end &&
+        base_name_start != name_cstr &&
+        base_name_start < base_name_end)
+    {
+        // The name supplied was a partial C++ path like "a::count". In this case we want to do a
+        // lookup on the basename "count" and then make sure any matching results contain "a::count"
+        // so that it would match "b::a::count" and "a::count". This is why we set "match_name_after_lookup"
+        // to true
+        lookup_name.SetCStringWithLength(base_name_start, base_name_end - base_name_start);
+        match_name_after_lookup = true;
+    }
+    else
+    {
+        // The name is already correct, just use the exact name as supplied, and we won't need
+        // to check if any matches contain "name"
+        lookup_name = name;
+        match_name_after_lookup = false;
+    }
+}
\ No newline at end of file