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3046e66830
- ObjectFile::GetSymtab() and ObjectFile::ClearSymtab() no longer takes any flags - Module coordinates with the object files and contain a unified section list so that object file and symbol file can share sections when they need to, yet contain their own sections. Other cleanups: - Fixed Symbol::GetByteSize() to not have the symbol table compute the byte sizes on the fly - Modified the ObjectFileMachO class to compute symbol sizes all at once efficiently - Modified the Symtab class to store a file address lookup table for more efficient lookups - Removed Section::Finalize() and SectionList::Finalize() as they did nothing - Improved performance of the detection of symbol files that have debug maps by excluding stripped files and core files, debug files, object files and stubs - Added the ability to tell if an ObjectFile has been stripped with ObjectFile::IsStripped() (used this for the above performance improvement) llvm-svn: 185990
90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
//===-- SymbolFile.cpp ------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/SymbolFile.h"
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#include "lldb/lldb-private.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Symbol/ObjectFile.h"
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using namespace lldb_private;
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SymbolFile*
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SymbolFile::FindPlugin (ObjectFile* obj_file)
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{
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std::unique_ptr<SymbolFile> best_symfile_ap;
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if (obj_file != NULL)
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{
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// We need to test the abilities of this section list. So create what it would
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// be with this new obj_file.
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lldb::ModuleSP module_sp(obj_file->GetModule());
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if (module_sp)
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{
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// Default to the main module section list.
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ObjectFile *module_obj_file = module_sp->GetObjectFile();
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if (module_obj_file != obj_file)
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{
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// Make sure the main object file's sections are created
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module_obj_file->GetSectionList();
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obj_file->CreateSections (*module_sp->GetUnifiedSectionList());
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}
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}
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// TODO: Load any plug-ins in the appropriate plug-in search paths and
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// iterate over all of them to find the best one for the job.
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uint32_t best_symfile_abilities = 0;
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SymbolFileCreateInstance create_callback;
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for (uint32_t idx = 0; (create_callback = PluginManager::GetSymbolFileCreateCallbackAtIndex(idx)) != NULL; ++idx)
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{
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std::unique_ptr<SymbolFile> curr_symfile_ap(create_callback(obj_file));
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if (curr_symfile_ap.get())
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{
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const uint32_t sym_file_abilities = curr_symfile_ap->GetAbilities();
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if (sym_file_abilities > best_symfile_abilities)
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{
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best_symfile_abilities = sym_file_abilities;
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best_symfile_ap.reset (curr_symfile_ap.release());
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// If any symbol file parser has all of the abilities, then
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// we should just stop looking.
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if ((kAllAbilities & sym_file_abilities) == kAllAbilities)
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break;
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}
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}
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}
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if (best_symfile_ap.get())
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{
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// Let the winning symbol file parser initialize itself more
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// completely now that it has been chosen
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best_symfile_ap->InitializeObject();
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}
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}
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return best_symfile_ap.release();
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}
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TypeList *
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SymbolFile::GetTypeList ()
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{
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if (m_obj_file)
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return m_obj_file->GetModule()->GetTypeList();
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return NULL;
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}
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lldb_private::ClangASTContext &
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SymbolFile::GetClangASTContext ()
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{
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return m_obj_file->GetModule()->GetClangASTContext();
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}
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