Ejemplo n.º 1
0
ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp, 
                        const ProcessSP &process_sp,
                        lldb::addr_t header_addr, 
                        DataBufferSP& header_data_sp) :
    ModuleChild (module_sp),
    m_file (),
    m_type (eTypeInvalid),
    m_strata (eStrataInvalid),
    m_offset (header_addr),
    m_length (0),
    m_data (),
    m_unwind_table (*this),
    m_process_wp (process_sp),
    m_memory_addr (header_addr)
{    
    if (header_data_sp)
        m_data.SetData (header_data_sp, 0, header_data_sp->GetByteSize());
    LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
    if (log)
    {
        log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, process = %p, header_addr = 0x%llx\n",
                     this,
                     module_sp->GetFileSpec().GetDirectory().AsCString(),
                     module_sp->GetFileSpec().GetFilename().AsCString(),
                     process_sp.get(),
                     m_offset);
    }
}
Ejemplo n.º 2
0
ObjectFileSP
ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp, 
                        const ProcessSP &process_sp,
                        lldb::addr_t header_addr,
                        DataBufferSP &file_data_sp)
{
    ObjectFileSP object_file_sp;
    
    if (module_sp)
    {
        Timer scoped_timer (__PRETTY_FUNCTION__,
                            "ObjectFile::FindPlugin (module = %s/%s, process = %p, header_addr = 0x%llx)",
                            module_sp->GetFileSpec().GetDirectory().AsCString(),
                            module_sp->GetFileSpec().GetFilename().AsCString(),
                            process_sp.get(), header_addr);
        uint32_t idx;
        
        // Check if this is a normal object file by iterating through
        // all object file plugin instances.
        ObjectFileCreateMemoryInstance create_callback;
        for (idx = 0; (create_callback = PluginManager::GetObjectFileCreateMemoryCallbackAtIndex(idx)) != NULL; ++idx)
        {
            object_file_sp.reset (create_callback(module_sp, file_data_sp, process_sp, header_addr));
            if (object_file_sp.get())
                return object_file_sp;
        }
        
    }
    // We didn't find it, so clear our shared pointer in case it
    // contains anything and return an empty shared pointer
    object_file_sp.reset();
    return object_file_sp;
}
Ejemplo n.º 3
0
ObjectFileSP ObjectFile::FindPlugin(const lldb::ModuleSP &module_sp,
                                    const ProcessSP &process_sp,
                                    lldb::addr_t header_addr,
                                    DataBufferSP &data_sp) {
  ObjectFileSP object_file_sp;

  if (module_sp) {
    Timer scoped_timer(LLVM_PRETTY_FUNCTION, "ObjectFile::FindPlugin (module = "
                                             "%s, process = %p, header_addr = "
                                             "0x%" PRIx64 ")",
                       module_sp->GetFileSpec().GetPath().c_str(),
                       static_cast<void *>(process_sp.get()), header_addr);
    uint32_t idx;

    // Check if this is a normal object file by iterating through
    // all object file plugin instances.
    ObjectFileCreateMemoryInstance create_callback;
    for (idx = 0;
         (create_callback =
              PluginManager::GetObjectFileCreateMemoryCallbackAtIndex(idx)) !=
         nullptr;
         ++idx) {
      object_file_sp.reset(
          create_callback(module_sp, data_sp, process_sp, header_addr));
      if (object_file_sp.get())
        return object_file_sp;
    }
  }

  // We didn't find it, so clear our shared pointer in case it
  // contains anything and return an empty shared pointer
  object_file_sp.reset();
  return object_file_sp;
}
Ejemplo n.º 4
0
ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp, 
                        const FileSpec *file_spec_ptr, 
                        addr_t file_offset, 
                        addr_t file_size, 
                        DataBufferSP& file_data_sp) :
    ModuleChild (module_sp),
    m_file (),  // This file could be different from the original module's file
    m_type (eTypeInvalid),
    m_strata (eStrataInvalid),
    m_offset (file_offset),
    m_length (file_size),
    m_data (),
    m_unwind_table (*this),
    m_process_wp(),
    m_memory_addr (LLDB_INVALID_ADDRESS)
{    
    if (file_spec_ptr)
        m_file = *file_spec_ptr;
    if (file_data_sp)
        m_data.SetData (file_data_sp, file_offset, file_size);
    LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
    if (log)
    {
        if (m_file)
        {
            log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = %s/%s, offset = 0x%8.8llx, size = %llu\n",
                         this,
                         module_sp->GetFileSpec().GetDirectory().AsCString(),
                         module_sp->GetFileSpec().GetFilename().AsCString(),
                         m_file.GetDirectory().AsCString(),
                         m_file.GetFilename().AsCString(),
                         m_offset,
                         m_length);
        }
        else
        {
            log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = <NULL>, offset = 0x%8.8llx, size = %llu\n",
                         this,
                         module_sp->GetFileSpec().GetDirectory().AsCString(),
                         module_sp->GetFileSpec().GetFilename().AsCString(),
                         m_offset,
                         m_length);
        }
    }
}
Ejemplo n.º 5
0
ObjectFileSP
ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp,
                        const FileSpec* file,
                        lldb::offset_t file_offset,
                        lldb::offset_t file_size,
                        DataBufferSP &data_sp,
                        lldb::offset_t &data_offset)
{
    ObjectFileSP object_file_sp;

    if (module_sp)
    {
        Timer scoped_timer (__PRETTY_FUNCTION__,
                            "ObjectFile::FindPlugin (module = %s, file = %p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")",
                            module_sp->GetFileSpec().GetPath().c_str(),
                            file, (uint64_t) file_offset, (uint64_t) file_size);
        if (file)
        {
            FileSpec archive_file;
            ObjectContainerCreateInstance create_object_container_callback;

            const bool file_exists = file->Exists();
            if (!data_sp)
            {
                // We have an object name which most likely means we have
                // a .o file in a static archive (.a file). Try and see if
                // we have a cached archive first without reading any data
                // first
                if (file_exists && module_sp->GetObjectName())
                {
                    for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
                    {
                        std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
                        
                        if (object_container_ap.get())
                            object_file_sp = object_container_ap->GetObjectFile(file);
                        
                        if (object_file_sp.get())
                            return object_file_sp;
                    }
                }
                // Ok, we didn't find any containers that have a named object, now
                // lets read the first 512 bytes from the file so the object file
                // and object container plug-ins can use these bytes to see if they
                // can parse this file.
                if (file_size > 0)
                {
                    data_sp = file->ReadFileContents(file_offset, std::min<size_t>(512, file_size));
                    data_offset = 0;
                }
            }

            if (!data_sp || data_sp->GetByteSize() == 0)
            {
                // Check for archive file with format "/path/to/archive.a(object.o)"
                char path_with_object[PATH_MAX*2];
                module_sp->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object));

                ConstString archive_object;
                const bool must_exist = true;
                if (ObjectFile::SplitArchivePathWithObject (path_with_object, archive_file, archive_object, must_exist))
                {
                    file_size = archive_file.GetByteSize();
                    if (file_size > 0)
                    {
                        file = &archive_file;
                        module_sp->SetFileSpecAndObjectName (archive_file, archive_object);
                        // Check if this is a object container by iterating through all object
                        // container plugin instances and then trying to get an object file
                        // from the container plugins since we had a name. Also, don't read
                        // ANY data in case there is data cached in the container plug-ins
                        // (like BSD archives caching the contained objects within an file).
                        for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
                        {
                            std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
                            
                            if (object_container_ap.get())
                                object_file_sp = object_container_ap->GetObjectFile(file);
                            
                            if (object_file_sp.get())
                                return object_file_sp;
                        }
                        // We failed to find any cached object files in the container
                        // plug-ins, so lets read the first 512 bytes and try again below...
                        data_sp = archive_file.ReadFileContents(file_offset, 512);
                    }
                }
            }

            if (data_sp && data_sp->GetByteSize() > 0)
            {
                // Check if this is a normal object file by iterating through
                // all object file plugin instances.
                ObjectFileCreateInstance create_object_file_callback;
                for (uint32_t idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != NULL; ++idx)
                {
                    object_file_sp.reset (create_object_file_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
                    if (object_file_sp.get())
                        return object_file_sp;
                }

                // Check if this is a object container by iterating through
                // all object container plugin instances and then trying to get
                // an object file from the container.
                for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
                {
                    std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));

                    if (object_container_ap.get())
                        object_file_sp = object_container_ap->GetObjectFile(file);

                    if (object_file_sp.get())
                        return object_file_sp;
                }
            }
        }
    }
    // We didn't find it, so clear our shared pointer in case it
    // contains anything and return an empty shared pointer
    object_file_sp.reset();
    return object_file_sp;
}
Ejemplo n.º 6
0
ObjectFileSP
ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp, const FileSpec* file, addr_t file_offset, addr_t file_size, DataBufferSP &file_data_sp)
{
    ObjectFileSP object_file_sp;

    if (module_sp)
    {
        Timer scoped_timer (__PRETTY_FUNCTION__,
                            "ObjectFile::FindPlugin (module = %s/%s, file = %p, file_offset = 0x%8.8llx, file_size = 0x%8.8llx)",
                            module_sp->GetFileSpec().GetDirectory().AsCString(),
                            module_sp->GetFileSpec().GetFilename().AsCString(),
                            file, (uint64_t) file_offset, (uint64_t) file_size);
        if (file)
        {
            // Memory map the entire file contents
            if (!file_data_sp && file_size > 0)
            {
                assert (file_offset == 0);
                file_data_sp = file->MemoryMapFileContents(file_offset, file_size);
            }

            if (!file_data_sp || file_data_sp->GetByteSize() == 0)
            {
                // Check for archive file with format "/path/to/archive.a(object.o)"
                char path_with_object[PATH_MAX*2];
                module_sp->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object));

                FileSpec archive_file;
                ConstString archive_object;
                if (ObjectFile::SplitArchivePathWithObject (path_with_object, archive_file, archive_object))
                {
                    file_size = archive_file.GetByteSize();
                    if (file_size > 0)
                    {
                        module_sp->SetFileSpecAndObjectName (archive_file, archive_object);
                        file_data_sp = archive_file.MemoryMapFileContents(file_offset, file_size);
                    }
                }
            }

            if (file_data_sp && file_data_sp->GetByteSize() > 0)
            {
                uint32_t idx;

                // Check if this is a normal object file by iterating through
                // all object file plugin instances.
                ObjectFileCreateInstance create_object_file_callback;
                for (idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != NULL; ++idx)
                {
                    object_file_sp.reset (create_object_file_callback(module_sp, file_data_sp, file, file_offset, file_size));
                    if (object_file_sp.get())
                        return object_file_sp;
                }

                // Check if this is a object container by iterating through
                // all object container plugin instances and then trying to get
                // an object file from the container.
                ObjectContainerCreateInstance create_object_container_callback;
                for (idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
                {
                    std::auto_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, file_data_sp, file, file_offset, file_size));

                    if (object_container_ap.get())
                        object_file_sp = object_container_ap->GetObjectFile(file);

                    if (object_file_sp.get())
                        return object_file_sp;
                }
            }
        }
    }
    // We didn't find it, so clear our shared pointer in case it
    // contains anything and return an empty shared pointer
    object_file_sp.reset();
    return object_file_sp;
}
Ejemplo n.º 7
0
Error
PlatformAndroid::DownloadSymbolFile (const lldb::ModuleSP& module_sp,
                                     const FileSpec& dst_file_spec)
{
    // For oat file we can try to fetch additional debug info from the device
    if (module_sp->GetFileSpec().GetFileNameExtension() != ConstString("oat"))
        return Error("Symbol file downloading only supported for oat files");

    // If we have no information about the platform file we can't execute oatdump
    if (!module_sp->GetPlatformFileSpec())
        return Error("No platform file specified");

    // Symbolizer isn't available before SDK version 23
    if (GetSdkVersion() < 23)
        return Error("Symbol file generation only supported on SDK 23+");

    // If we already have symtab then we don't have to try and generate one
    if (module_sp->GetSectionList()->FindSectionByName(ConstString(".symtab")) != nullptr)
        return Error("Symtab already available in the module");

    int status = 0;
    std::string tmpdir;
    StreamString command;
    command.Printf("mktemp --directory --tmpdir %s", GetWorkingDirectory().GetCString());
    Error error = RunShellCommand(command.GetData(),
                                  GetWorkingDirectory(),
                                  &status,
                                  nullptr,
                                  &tmpdir,
                                  5 /* timeout (s) */);

    if (error.Fail() || status != 0 || tmpdir.empty())
        return Error("Failed to generate temporary directory on the device (%s)", error.AsCString());
    tmpdir.erase(tmpdir.size() - 1); // Remove trailing new line

    // Create file remover for the temporary directory created on the device
    std::unique_ptr<std::string, std::function<void(std::string*)>> tmpdir_remover(
        &tmpdir,
        [this](std::string* s) {
            StreamString command;
            command.Printf("rm -rf %s", s->c_str());
            Error error = this->RunShellCommand(command.GetData(),
                                                GetWorkingDirectory(),
                                                nullptr,
                                                nullptr,
                                                nullptr,
                                                5 /* timeout (s) */);

            Log *log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_PLATFORM));
            if (error.Fail())
                log->Printf("Failed to remove temp directory: %s", error.AsCString());
        }
    );

    FileSpec symfile_platform_filespec(tmpdir.c_str(), false);
    symfile_platform_filespec.AppendPathComponent("symbolized.oat");

    // Execute oatdump on the remote device to generate a file with symtab
    command.Clear();
    command.Printf("oatdump --symbolize=%s --output=%s",
                   module_sp->GetPlatformFileSpec().GetCString(false),
                   symfile_platform_filespec.GetCString(false));
    error = RunShellCommand(command.GetData(),
                            GetWorkingDirectory(),
                            &status,
                            nullptr,
                            nullptr,
                            60 /* timeout (s) */);
    if (error.Fail() || status != 0)
        return Error("Oatdump failed: %s", error.AsCString());

    // Download the symbolfile from the remote device
    return GetFile(symfile_platform_filespec, dst_file_spec);
}
Ejemplo n.º 8
0
Error ModuleCache::GetAndPut(const FileSpec &root_dir_spec,
                             const char *hostname,
                             const ModuleSpec &module_spec,
                             const ModuleDownloader &module_downloader,
                             const SymfileDownloader &symfile_downloader,
                             lldb::ModuleSP &cached_module_sp,
                             bool *did_create_ptr) {
  const auto module_spec_dir =
      GetModuleDirectory(root_dir_spec, module_spec.GetUUID());
  auto error = MakeDirectory(module_spec_dir);
  if (error.Fail())
    return error;

  ModuleLock lock(root_dir_spec, module_spec.GetUUID(), error);
  if (error.Fail())
    return Error("Failed to lock module %s: %s",
                 module_spec.GetUUID().GetAsString().c_str(),
                 error.AsCString());

  const auto escaped_hostname(GetEscapedHostname(hostname));
  // Check local cache for a module.
  error = Get(root_dir_spec, escaped_hostname.c_str(), module_spec,
              cached_module_sp, did_create_ptr);
  if (error.Success())
    return error;

  const auto tmp_download_file_spec = JoinPath(module_spec_dir, kTempFileName);
  error = module_downloader(module_spec, tmp_download_file_spec);
  llvm::FileRemover tmp_file_remover(tmp_download_file_spec.GetPath().c_str());
  if (error.Fail())
    return Error("Failed to download module: %s", error.AsCString());

  // Put downloaded file into local module cache.
  error = Put(root_dir_spec, escaped_hostname.c_str(), module_spec,
              tmp_download_file_spec, module_spec.GetFileSpec());
  if (error.Fail())
    return Error("Failed to put module into cache: %s", error.AsCString());

  tmp_file_remover.releaseFile();
  error = Get(root_dir_spec, escaped_hostname.c_str(), module_spec,
              cached_module_sp, did_create_ptr);
  if (error.Fail())
    return error;

  // Fetching a symbol file for the module
  const auto tmp_download_sym_file_spec =
      JoinPath(module_spec_dir, kTempSymFileName);
  error = symfile_downloader(cached_module_sp, tmp_download_sym_file_spec);
  llvm::FileRemover tmp_symfile_remover(
      tmp_download_sym_file_spec.GetPath().c_str());
  if (error.Fail())
    // Failed to download a symfile but fetching the module was successful. The
    // module might
    // contain the necessary symbols and the debugging is also possible without
    // a symfile.
    return Error();

  error = Put(root_dir_spec, escaped_hostname.c_str(), module_spec,
              tmp_download_sym_file_spec,
              GetSymbolFileSpec(module_spec.GetFileSpec()));
  if (error.Fail())
    return Error("Failed to put symbol file into cache: %s", error.AsCString());

  tmp_symfile_remover.releaseFile();

  FileSpec symfile_spec = GetSymbolFileSpec(cached_module_sp->GetFileSpec());
  cached_module_sp->SetSymbolFileFileSpec(symfile_spec);
  return Error();
}
Ejemplo n.º 9
0
Error
ModuleCache::GetAndPut (const FileSpec &root_dir_spec,
                        const char *hostname,
                        const ModuleSpec &module_spec,
                        const ModuleDownloader &module_downloader,
                        const SymfileDownloader &symfile_downloader,
                        lldb::ModuleSP &cached_module_sp,
                        bool *did_create_ptr)
{
    const auto module_spec_dir = GetModuleDirectory (root_dir_spec, module_spec.GetUUID ());
    auto error = MakeDirectory (module_spec_dir);
    if (error.Fail ())
        return error;

    // Open lock file.
    const auto lock_file_spec = JoinPath (module_spec_dir, kLockFileName);
    File lock_file (lock_file_spec, File::eOpenOptionWrite | File::eOpenOptionCanCreate | File::eOpenOptionCloseOnExec);
    if (!lock_file)
    {
        error.SetErrorToErrno ();
        return Error("Failed to open lock file %s: %s", lock_file_spec.GetPath ().c_str (), error.AsCString ());
    }
    LockFile lock (lock_file.GetDescriptor ());
    error = lock.WriteLock (0, 1);
    if (error.Fail ())
        return Error("Failed to lock file %s:%s", lock_file_spec.GetPath ().c_str (), error.AsCString ());

    // Check local cache for a module.
    error = Get (root_dir_spec, hostname, module_spec, cached_module_sp, did_create_ptr);
    if (error.Success ())
        return error;

    const auto tmp_download_file_spec = JoinPath (module_spec_dir, kTempFileName);
    error = module_downloader (module_spec, tmp_download_file_spec);
    llvm::FileRemover tmp_file_remover (tmp_download_file_spec.GetPath ().c_str ());
    if (error.Fail ())
        return Error("Failed to download module: %s", error.AsCString ());

    // Put downloaded file into local module cache.
    error = Put (root_dir_spec, hostname, module_spec, tmp_download_file_spec, module_spec.GetFileSpec ());
    if (error.Fail ())
        return Error ("Failed to put module into cache: %s", error.AsCString ());

    tmp_file_remover.releaseFile ();
    error = Get (root_dir_spec, hostname, module_spec, cached_module_sp, did_create_ptr);
    if (error.Fail ())
        return error;

    // Fetching a symbol file for the module
    const auto tmp_download_sym_file_spec = JoinPath (module_spec_dir, kTempSymFileName);
    error = symfile_downloader (cached_module_sp, tmp_download_sym_file_spec);
    llvm::FileRemover tmp_symfile_remover (tmp_download_sym_file_spec.GetPath ().c_str ());
    if (error.Fail ())
        // Failed to download a symfile but fetching the module was successful. The module might
        // contain the neccessary symbols and the debugging is also possible without a symfile.
        return Error ();

    FileSpec symfile_spec = GetSymbolFileSpec (cached_module_sp->GetFileSpec ());
    error = Put (root_dir_spec, hostname, module_spec, tmp_download_sym_file_spec, symfile_spec);
    if (error.Fail ())
        return Error ("Failed to put symbol file into cache: %s", error.AsCString ());
    
    tmp_symfile_remover.releaseFile();

    cached_module_sp->SetSymbolFileFileSpec (symfile_spec);
    return Error ();
}