Merge lldb r188801 to contrib/llvm/tools/lldb/

1 files changed, 89 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Symbol/SymbolFile.cpp b/contrib/llvm/tools/lldb/source/Symbol/SymbolFile.cpp
new file mode 100644
index 0000000..412c460
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Symbol/SymbolFile.cpp
@@ -0,0 +1,89 @@
+//===-- SymbolFile.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/Symbol/SymbolFile.h"
+
+#include "lldb/lldb-private.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Symbol/ObjectFile.h"
+
+using namespace lldb_private;
+
+SymbolFile*
+SymbolFile::FindPlugin (ObjectFile* obj_file)
+{
+    std::unique_ptr<SymbolFile> best_symfile_ap;
+    if (obj_file != NULL)
+    {
+        
+        // We need to test the abilities of this section list. So create what it would
+        // be with this new obj_file.
+        lldb::ModuleSP module_sp(obj_file->GetModule());
+        if (module_sp)
+        {
+            // Default to the main module section list.
+            ObjectFile *module_obj_file = module_sp->GetObjectFile();
+            if (module_obj_file != obj_file)
+            {
+                // Make sure the main object file's sections are created
+                module_obj_file->GetSectionList();
+                obj_file->CreateSections (*module_sp->GetUnifiedSectionList());
+            }
+        }
+
+        // TODO: Load any plug-ins in the appropriate plug-in search paths and
+        // iterate over all of them to find the best one for the job.
+
+        uint32_t best_symfile_abilities = 0;
+
+        SymbolFileCreateInstance create_callback;
+        for (uint32_t idx = 0; (create_callback = PluginManager::GetSymbolFileCreateCallbackAtIndex(idx)) != NULL; ++idx)
+        {
+            std::unique_ptr<SymbolFile> curr_symfile_ap(create_callback(obj_file));
+
+            if (curr_symfile_ap.get())
+            {
+                const uint32_t sym_file_abilities = curr_symfile_ap->GetAbilities();
+                if (sym_file_abilities > best_symfile_abilities)
+                {
+                    best_symfile_abilities = sym_file_abilities;
+                    best_symfile_ap.reset (curr_symfile_ap.release());
+                    // If any symbol file parser has all of the abilities, then
+                    // we should just stop looking.
+                    if ((kAllAbilities & sym_file_abilities) == kAllAbilities)
+                        break;
+                }
+            }
+        }
+        if (best_symfile_ap.get())
+        {
+            // Let the winning symbol file parser initialize itself more 
+            // completely now that it has been chosen
+            best_symfile_ap->InitializeObject();
+        }
+    }
+    return best_symfile_ap.release();
+}
+
+TypeList *
+SymbolFile::GetTypeList ()
+{
+    if (m_obj_file)
+        return m_obj_file->GetModule()->GetTypeList();
+    return NULL;
+}
+
+lldb_private::ClangASTContext &       
+SymbolFile::GetClangASTContext ()
+{
+    return m_obj_file->GetModule()->GetClangASTContext();
+}