Пример #1
0
ObjectFile::ObjectFile(const lldb::ModuleSP &module_sp,
                       const FileSpec *file_spec_ptr,
                       lldb::offset_t file_offset, lldb::offset_t length,
                       const lldb::DataBufferSP &data_sp,
                       lldb::offset_t data_offset)
    : ModuleChild(module_sp),
      m_file(), // This file could be different from the original module's file
      m_type(eTypeInvalid), m_strata(eStrataInvalid),
      m_file_offset(file_offset), m_length(length), m_data(),
      m_unwind_table(*this), m_process_wp(),
      m_memory_addr(LLDB_INVALID_ADDRESS), m_sections_ap(), m_symtab_ap(),
      m_synthetic_symbol_idx(0) {
  if (file_spec_ptr)
    m_file = *file_spec_ptr;
  if (data_sp)
    m_data.SetData(data_sp, data_offset, length);
  Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
  if (log)
    log->Printf("%p ObjectFile::ObjectFile() module = %p (%s), file = %s, "
                "file_offset = 0x%8.8" PRIx64 ", size = %" PRIu64,
                static_cast<void *>(this), static_cast<void *>(module_sp.get()),
                module_sp->GetSpecificationDescription().c_str(),
                m_file ? m_file.GetPath().c_str() : "<NULL>", m_file_offset,
                m_length);
}
Пример #2
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_file_offset (0),
    m_length (0),
    m_data (),
    m_unwind_table (*this),
    m_process_wp (process_sp),
    m_memory_addr (header_addr),
    m_sections_ap (),
    m_symtab_ap (),
    m_symtab_unified_ap (),
    m_symtab_unified_revisionid (0)
{
    if (header_data_sp)
        m_data.SetData (header_data_sp, 0, header_data_sp->GetByteSize());
    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
    if (log)
    {
        log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), process = %p, header_addr = 0x%" PRIx64,
                     this,
                     module_sp.get(),
                     module_sp->GetSpecificationDescription().c_str(),
                     process_sp.get(),
                     m_memory_addr);
    }
}
Пример #3
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);
    }
}
Пример #4
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;
}
Пример #5
0
bool AddressSanitizerRuntime::CheckIfRuntimeIsValid(
    const lldb::ModuleSP module_sp) {
  const Symbol *symbol = module_sp->FindFirstSymbolWithNameAndType(
      ConstString("__asan_get_alloc_stack"), lldb::eSymbolTypeAny);

  return symbol != nullptr;
}
Пример #6
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;
}
static DWARFExpression MakeRegisterBasedLocationExpressionInternal(
    llvm::codeview::RegisterId reg, llvm::Optional<int32_t> relative_offset,
    lldb::ModuleSP module) {
  return MakeLocationExpressionInternal(
      module, [&](Stream &stream, RegisterKind &register_kind) -> bool {
        uint32_t reg_num = GetRegisterNumber(
            module->GetArchitecture().GetMachine(), reg, register_kind);
        if (reg_num == LLDB_INVALID_REGNUM)
          return false;

        if (reg_num > 31) {
          llvm::dwarf::LocationAtom base = relative_offset
                                               ? llvm::dwarf::DW_OP_bregx
                                               : llvm::dwarf::DW_OP_regx;
          stream.PutHex8(base);
          stream.PutULEB128(reg_num);
        } else {
          llvm::dwarf::LocationAtom base = relative_offset
                                               ? llvm::dwarf::DW_OP_breg0
                                               : llvm::dwarf::DW_OP_reg0;
          stream.PutHex8(base + reg_num);
        }

        if (relative_offset)
          stream.PutSLEB128(*relative_offset);

        return true;
      });
}
Пример #8
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);
        }
    }
}
Пример #9
0
    void VerifyLineEntry(lldb::ModuleSP module, const SymbolContext &sc,
                         const FileSpec &spec, LineTable &lt, uint32_t line,
                         lldb::addr_t addr) {
        LineEntry entry;
        Address address;
        EXPECT_TRUE(module->ResolveFileAddress(addr, address));

        EXPECT_TRUE(lt.FindLineEntryByAddress(address, entry));
        EXPECT_EQ(line, entry.line);
        EXPECT_EQ(address, entry.range.GetBaseAddress());

        EXPECT_TRUE(FileSpecMatchesAsBaseOrFull(spec, entry.file));
    }
Пример #10
0
bool
PlatformDarwin::ModuleIsExcludedForNonModuleSpecificSearches (lldb_private::Target &target, const lldb::ModuleSP &module_sp)
{
    if (!module_sp)
        return false;
        
    ObjectFile *obj_file = module_sp->GetObjectFile();
    if (!obj_file)
        return false;
    
    ObjectFile::Type obj_type = obj_file->GetType();
    if (obj_type == ObjectFile::eTypeDynamicLinker)
        return true;
    else
        return false;
}
lldb::addr_t
DynamicLoaderPOSIXDYLD::GetThreadLocalData (const lldb::ModuleSP module, const lldb::ThreadSP thread)
{
    auto it = m_loaded_modules.find (module);
    if (it == m_loaded_modules.end())
        return LLDB_INVALID_ADDRESS;

    addr_t link_map = it->second;
    if (link_map == LLDB_INVALID_ADDRESS)
        return LLDB_INVALID_ADDRESS;

    const DYLDRendezvous::ThreadInfo &metadata = m_rendezvous.GetThreadInfo();
    if (!metadata.valid)
        return LLDB_INVALID_ADDRESS;

    // Get the thread pointer.
    addr_t tp = thread->GetThreadPointer ();
    if (tp == LLDB_INVALID_ADDRESS)
        return LLDB_INVALID_ADDRESS;

    // Find the module's modid.
    int modid_size = 4;  // FIXME(spucci): This isn't right for big-endian 64-bit
    int64_t modid = ReadUnsignedIntWithSizeInBytes (link_map + metadata.modid_offset, modid_size);
    if (modid == -1)
        return LLDB_INVALID_ADDRESS;

    // Lookup the DTV structure for this thread.
    addr_t dtv_ptr = tp + metadata.dtv_offset;
    addr_t dtv = ReadPointer (dtv_ptr);
    if (dtv == LLDB_INVALID_ADDRESS)
        return LLDB_INVALID_ADDRESS;

    // Find the TLS block for this module.
    addr_t dtv_slot = dtv + metadata.dtv_slot_size*modid;
    addr_t tls_block = ReadPointer (dtv_slot + metadata.tls_offset);

    Module *mod = module.get();
    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_DYNAMIC_LOADER));
    if (log)
        log->Printf("DynamicLoaderPOSIXDYLD::Performed TLS lookup: "
                    "module=%s, link_map=0x%" PRIx64 ", tp=0x%" PRIx64 ", modid=%" PRId64 ", tls_block=0x%" PRIx64 "\n",
                    mod->GetObjectName().AsCString(""), link_map, tp, (int64_t)modid, tls_block);

    return tls_block;
}
void
DynamicLoaderPOSIXDYLD::ResolveExecutableModule (lldb::ModuleSP &module_sp)
{
    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_DYNAMIC_LOADER));

    if (m_process == nullptr)
        return;

    auto &target = m_process->GetTarget ();
    const auto platform_sp = target.GetPlatform ();

    ProcessInstanceInfo process_info;
    if (!platform_sp->GetProcessInfo (m_process->GetID (), process_info))
    {
        if (log)
            log->Printf ("DynamicLoaderPOSIXDYLD::%s - failed to get process info for pid %" PRIu64,
                         __FUNCTION__, m_process->GetID ());
        return;
    }

    if (log)
        log->Printf ("DynamicLoaderPOSIXDYLD::%s - got executable by pid %" PRIu64 ": %s",
                     __FUNCTION__, m_process->GetID (), process_info.GetExecutableFile ().GetPath ().c_str ());

    ModuleSpec module_spec (process_info.GetExecutableFile (), process_info.GetArchitecture ());
    if (module_sp && module_sp->MatchesModuleSpec (module_spec))
        return;

    const auto executable_search_paths (Target::GetDefaultExecutableSearchPaths());
    auto error = platform_sp->ResolveExecutable (
        module_spec, module_sp, !executable_search_paths.IsEmpty() ? &executable_search_paths : nullptr);
    if (error.Fail ())
    {
        StreamString stream;
        module_spec.Dump (stream);

        if (log)
            log->Printf ("DynamicLoaderPOSIXDYLD::%s - failed to resolve executable with module spec \"%s\": %s",
                         __FUNCTION__, stream.GetString ().c_str (), error.AsCString ());
        return;
    }

    target.SetExecutableModule (module_sp, false);
}
Пример #13
0
lldb_private::Error
PlatformMacOSX::GetSharedModule (const lldb_private::ModuleSpec &module_spec,
                                 Process* process,
                                 lldb::ModuleSP &module_sp,
                                 const lldb_private::FileSpecList *module_search_paths_ptr,
                                 lldb::ModuleSP *old_module_sp_ptr,
                                 bool *did_create_ptr)
{
    Error error = GetSharedModuleWithLocalCache(module_spec, module_sp, module_search_paths_ptr, old_module_sp_ptr, did_create_ptr);
    
    if (module_sp)
    {
        if (module_spec.GetArchitecture().GetCore() == ArchSpec::eCore_x86_64_x86_64h)
        {
            ObjectFile *objfile = module_sp->GetObjectFile();
            if (objfile == NULL)
            {
                // We didn't find an x86_64h slice, fall back to a x86_64 slice
                ModuleSpec module_spec_x86_64 (module_spec);
                module_spec_x86_64.GetArchitecture() = ArchSpec("x86_64-apple-macosx");
                lldb::ModuleSP x86_64_module_sp;
                lldb::ModuleSP old_x86_64_module_sp;
                bool did_create = false;
                Error x86_64_error = GetSharedModuleWithLocalCache(module_spec_x86_64, x86_64_module_sp, module_search_paths_ptr, &old_x86_64_module_sp, &did_create);
                if (x86_64_module_sp && x86_64_module_sp->GetObjectFile())
                {
                    module_sp = x86_64_module_sp;
                    if (old_module_sp_ptr)
                        *old_module_sp_ptr = old_x86_64_module_sp;
                    if (did_create_ptr)
                        *did_create_ptr = did_create;
                    return x86_64_error;
                }
            }
        }
    }
    return error;
}
static DWARFExpression MakeLocationExpressionInternal(lldb::ModuleSP module,
                                                      StreamWriter &&writer) {
  const ArchSpec &architecture = module->GetArchitecture();
  ByteOrder byte_order = architecture.GetByteOrder();
  uint32_t address_size = architecture.GetAddressByteSize();
  uint32_t byte_size = architecture.GetDataByteSize();
  if (byte_order == eByteOrderInvalid || address_size == 0)
    return DWARFExpression(nullptr);

  RegisterKind register_kind = eRegisterKindDWARF;
  StreamBuffer<32> stream(Stream::eBinary, address_size, byte_order);

  if (!writer(stream, register_kind))
    return DWARFExpression(nullptr);

  DataBufferSP buffer =
      std::make_shared<DataBufferHeap>(stream.GetData(), stream.GetSize());
  DataExtractor extractor(buffer, byte_order, address_size, byte_size);
  DWARFExpression result(module, extractor, nullptr, 0, buffer->GetByteSize());
  result.SetRegisterKind(register_kind);

  return result;
}
Пример #15
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;
}
Пример #16
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();
}
Пример #17
0
Error
PlatformKalimba::ResolveExecutable (const FileSpec &exe_file,
                                  const ArchSpec &exe_arch,
                                  lldb::ModuleSP &exe_module_sp,
                                  const FileSpecList *module_search_paths_ptr)
{
    Error error;
    char exe_path[PATH_MAX];
    FileSpec resolved_exe_file (exe_file);

    if (!resolved_exe_file.Exists())
    {
        exe_file.GetPath(exe_path, sizeof(exe_path));
        error.SetErrorStringWithFormat("unable to find executable for '%s'", exe_path);
    }

    if (error.Success())
    {
        ModuleSpec module_spec (resolved_exe_file, exe_arch);
        if (exe_arch.IsValid())
        {
            error = ModuleList::GetSharedModule (module_spec, 
                                                 exe_module_sp, 
                                                 NULL, 
                                                 NULL,
                                                 NULL);
            if (error.Fail())
            {
                // If we failed, it may be because the vendor and os aren't known. If that is the
                // case, try setting them to the host architecture and give it another try.
                llvm::Triple &module_triple = module_spec.GetArchitecture().GetTriple(); 
                bool is_vendor_specified = (module_triple.getVendor() != llvm::Triple::UnknownVendor);
                bool is_os_specified = (module_triple.getOS() != llvm::Triple::UnknownOS);
                if (!is_vendor_specified || !is_os_specified)
                {
                    const llvm::Triple &host_triple = Host::GetArchitecture (Host::eSystemDefaultArchitecture).GetTriple();

                    if (!is_vendor_specified)
                        module_triple.setVendorName (host_triple.getVendorName());
                    if (!is_os_specified)
                        module_triple.setOSName (host_triple.getOSName());

                    error = ModuleList::GetSharedModule (module_spec, 
                                                         exe_module_sp, 
                                                         NULL, 
                                                         NULL,
                                                         NULL);
                }
            }
        
            // TODO find out why exe_module_sp might be NULL            
            if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL)
            {
                exe_module_sp.reset();
                error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s",
                                                exe_file.GetPath().c_str(),
                                                exe_arch.GetArchitectureName());
            }
        }
        else
        {
            // No valid architecture was specified, ask the platform for
            // the architectures that we should be using (in the correct order)
            // and see if we can find a match that way
            StreamString arch_names;
            for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, module_spec.GetArchitecture()); ++idx)
            {
                error = ModuleList::GetSharedModule (module_spec, 
                                                     exe_module_sp, 
                                                     NULL, 
                                                     NULL,
                                                     NULL);
                // Did we find an executable using one of the 
                if (error.Success())
                {
                    if (exe_module_sp && exe_module_sp->GetObjectFile())
                        break;
                    else
                        error.SetErrorToGenericError();
                }
                
                if (idx > 0)
                    arch_names.PutCString (", ");
                arch_names.PutCString (module_spec.GetArchitecture().GetArchitectureName());
            }
            
            if (error.Fail() || !exe_module_sp)
            {
                error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
                                                exe_file.GetPath().c_str(),
                                                GetPluginName().GetCString(),
                                                arch_names.GetString().c_str());
            }
        }
    }

    return error;
}
Error
PlatformLinux::ResolveExecutable (const ModuleSpec &ms,
                                  lldb::ModuleSP &exe_module_sp,
                                  const FileSpecList *module_search_paths_ptr)
{
    Error error;
    // Nothing special to do here, just use the actual file and architecture

    char exe_path[PATH_MAX];
    ModuleSpec resolved_module_spec (ms);
    
    if (IsHost())
    {
        // If we have "ls" as the exe_file, resolve the executable location based on
        // the current path variables
        if (!resolved_module_spec.GetFileSpec().Exists())
        {
            resolved_module_spec.GetFileSpec().GetPath(exe_path, sizeof(exe_path));
            resolved_module_spec.GetFileSpec().SetFile(exe_path, true);
        }

        if (!resolved_module_spec.GetFileSpec().Exists())
            resolved_module_spec.GetFileSpec().ResolveExecutableLocation ();

        if (resolved_module_spec.GetFileSpec().Exists())
            error.Clear();
        else
        {
            error.SetErrorStringWithFormat("unable to find executable for '%s'", resolved_module_spec.GetFileSpec().GetPath().c_str());
        }
    }
    else
    {
        if (m_remote_platform_sp)
        {
            error = m_remote_platform_sp->ResolveExecutable (ms,
                                                             exe_module_sp,
                                                             NULL);
        }
        else
        {
            // We may connect to a process and use the provided executable (Don't use local $PATH).
            
            if (resolved_module_spec.GetFileSpec().Exists())
                error.Clear();
            else
                error.SetErrorStringWithFormat("the platform is not currently connected, and '%s' doesn't exist in the system root.", exe_path);
        }
    }

    if (error.Success())
    {
        if (resolved_module_spec.GetArchitecture().IsValid())
        {
            error = ModuleList::GetSharedModule (resolved_module_spec,
                                                 exe_module_sp, 
                                                 NULL, 
                                                 NULL,
                                                 NULL);
            if (error.Fail())
            {
                // If we failed, it may be because the vendor and os aren't known. If that is the
                // case, try setting them to the host architecture and give it another try.
                llvm::Triple &module_triple = resolved_module_spec.GetArchitecture().GetTriple();
                bool is_vendor_specified = (module_triple.getVendor() != llvm::Triple::UnknownVendor);
                bool is_os_specified = (module_triple.getOS() != llvm::Triple::UnknownOS);
                if (!is_vendor_specified || !is_os_specified)
                {
                    const llvm::Triple &host_triple = HostInfo::GetArchitecture(HostInfo::eArchKindDefault).GetTriple();

                    if (!is_vendor_specified)
                        module_triple.setVendorName (host_triple.getVendorName());
                    if (!is_os_specified)
                        module_triple.setOSName (host_triple.getOSName());

                    error = ModuleList::GetSharedModule (resolved_module_spec,
                                                         exe_module_sp, 
                                                         NULL, 
                                                         NULL,
                                                         NULL);
                }
            }
        
            // TODO find out why exe_module_sp might be NULL            
            if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL)
            {
                exe_module_sp.reset();
                error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s",
                                                resolved_module_spec.GetFileSpec().GetPath().c_str(),
                                                resolved_module_spec.GetArchitecture().GetArchitectureName());
            }
        }
        else
        {
            // No valid architecture was specified, ask the platform for
            // the architectures that we should be using (in the correct order)
            // and see if we can find a match that way
            StreamString arch_names;
            for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, resolved_module_spec.GetArchitecture()); ++idx)
            {
                error = ModuleList::GetSharedModule (resolved_module_spec,
                                                     exe_module_sp, 
                                                     NULL, 
                                                     NULL,
                                                     NULL);
                // Did we find an executable using one of the 
                if (error.Success())
                {
                    if (exe_module_sp && exe_module_sp->GetObjectFile())
                        break;
                    else
                        error.SetErrorToGenericError();
                }
                
                if (idx > 0)
                    arch_names.PutCString (", ");
                arch_names.PutCString (resolved_module_spec.GetArchitecture().GetArchitectureName());
            }
            
            if (error.Fail() || !exe_module_sp)
            {
                if (resolved_module_spec.GetFileSpec().Readable())
                {
                    error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
                                                    resolved_module_spec.GetFileSpec().GetPath().c_str(),
                                                    GetPluginName().GetCString(),
                                                    arch_names.GetString().c_str());
                }
                else
                {
                    error.SetErrorStringWithFormat("'%s' is not readable", resolved_module_spec.GetFileSpec().GetPath().c_str());
                }
            }
        }
    }

    return error;
}
Пример #19
0
Error
PlatformRemoteiOS::ResolveExecutable (const FileSpec &exe_file,
                                      const ArchSpec &exe_arch,
                                      lldb::ModuleSP &exe_module_sp)
{
    Error error;
    // Nothing special to do here, just use the actual file and architecture

    FileSpec resolved_exe_file (exe_file);
    
    // If we have "ls" as the exe_file, resolve the executable loation based on
    // the current path variables
    // TODO: resolve bare executables in the Platform SDK
//    if (!resolved_exe_file.Exists())
//        resolved_exe_file.ResolveExecutableLocation ();

    // Resolve any executable within a bundle on MacOSX
    // TODO: verify that this handles shallow bundles, if not then implement one ourselves
    Host::ResolveExecutableInBundle (resolved_exe_file);

    if (resolved_exe_file.Exists())
    {
        if (exe_arch.IsValid())
        {
            error = ModuleList::GetSharedModule (resolved_exe_file, 
                                                 exe_arch, 
                                                 NULL,
                                                 NULL, 
                                                 0, 
                                                 exe_module_sp, 
                                                 NULL, 
                                                 NULL);
        
            if (exe_module_sp->GetObjectFile())
                return error;
            exe_module_sp.reset();
        }
        // No valid architecture was specified or the exact ARM slice wasn't
        // found so ask the platform for the architectures that we should be
        // using (in the correct order) and see if we can find a match that way
        StreamString arch_names;
        ArchSpec platform_arch;
        for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, platform_arch); ++idx)
        {
            error = ModuleList::GetSharedModule (resolved_exe_file, 
                                                 platform_arch, 
                                                 NULL,
                                                 NULL, 
                                                 0, 
                                                 exe_module_sp, 
                                                 NULL, 
                                                 NULL);
            // Did we find an executable using one of the 
            if (error.Success())
            {
                if (exe_module_sp && exe_module_sp->GetObjectFile())
                    break;
                else
                    error.SetErrorToGenericError();
            }
            
            if (idx > 0)
                arch_names.PutCString (", ");
            arch_names.PutCString (platform_arch.GetArchitectureName());
        }
        
        if (error.Fail() || !exe_module_sp)
        {
            error.SetErrorStringWithFormat ("'%s%s%s' doesn't contain any '%s' platform architectures: %s",
                                            exe_file.GetDirectory().AsCString(""),
                                            exe_file.GetDirectory() ? "/" : "",
                                            exe_file.GetFilename().AsCString(""),
                                            GetShortPluginName(),
                                            arch_names.GetString().c_str());
        }
    }
    else
    {
        error.SetErrorStringWithFormat ("'%s%s%s' does not exist",
                                        exe_file.GetDirectory().AsCString(""),
                                        exe_file.GetDirectory() ? "/" : "",
                                        exe_file.GetFilename().AsCString(""));
    }

    return error;
}
Пример #20
0
Error
PlatformLinux::ResolveExecutable (const FileSpec &exe_file,
                                  const ArchSpec &exe_arch,
                                  lldb::ModuleSP &exe_module_sp,
                                  const FileSpecList *module_search_paths_ptr)
{
    Error error;
    // Nothing special to do here, just use the actual file and architecture

    char exe_path[PATH_MAX];
    FileSpec resolved_exe_file (exe_file);
    
    if (IsHost())
    {
        // If we have "ls" as the exe_file, resolve the executable location based on
        // the current path variables
        if (!resolved_exe_file.Exists())
        {
            exe_file.GetPath(exe_path, sizeof(exe_path));
            resolved_exe_file.SetFile(exe_path, true);
        }

        if (!resolved_exe_file.Exists())
            resolved_exe_file.ResolveExecutableLocation ();

        if (resolved_exe_file.Exists())
            error.Clear();
        else
        {
            exe_file.GetPath(exe_path, sizeof(exe_path));
            error.SetErrorStringWithFormat("unable to find executable for '%s'", exe_path);
        }
    }
    else
    {
        if (m_remote_platform_sp)
        {
            error = m_remote_platform_sp->ResolveExecutable (exe_file,
                                                             exe_arch,
                                                             exe_module_sp,
                                                             NULL);
        }
        else
        {
            // We may connect to a process and use the provided executable (Don't use local $PATH).
            
            if (resolved_exe_file.Exists())
                error.Clear();
            else
                error.SetErrorStringWithFormat("the platform is not currently connected, and '%s' doesn't exist in the system root.", exe_path);
        }
    }

    if (error.Success())
    {
        ModuleSpec module_spec (resolved_exe_file, exe_arch);
        if (exe_arch.IsValid())
        {
            error = ModuleList::GetSharedModule (module_spec, 
                                                 exe_module_sp, 
                                                 NULL, 
                                                 NULL,
                                                 NULL);
        
            // TODO find out why exe_module_sp might be NULL            
            if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL)
            {
                exe_module_sp.reset();
                error.SetErrorStringWithFormat ("'%s%s%s' doesn't contain the architecture %s",
                                                exe_file.GetDirectory().AsCString(""),
                                                exe_file.GetDirectory() ? "/" : "",
                                                exe_file.GetFilename().AsCString(""),
                                                exe_arch.GetArchitectureName());
            }
        }
        else
        {
            // No valid architecture was specified, ask the platform for
            // the architectures that we should be using (in the correct order)
            // and see if we can find a match that way
            StreamString arch_names;
            for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, module_spec.GetArchitecture()); ++idx)
            {
                error = ModuleList::GetSharedModule (module_spec, 
                                                     exe_module_sp, 
                                                     NULL, 
                                                     NULL,
                                                     NULL);
                // Did we find an executable using one of the 
                if (error.Success())
                {
                    if (exe_module_sp && exe_module_sp->GetObjectFile())
                        break;
                    else
                        error.SetErrorToGenericError();
                }
                
                if (idx > 0)
                    arch_names.PutCString (", ");
                arch_names.PutCString (module_spec.GetArchitecture().GetArchitectureName());
            }
            
            if (error.Fail() || !exe_module_sp)
            {
                error.SetErrorStringWithFormat ("'%s%s%s' doesn't contain any '%s' platform architectures: %s",
                                                exe_file.GetDirectory().AsCString(""),
                                                exe_file.GetDirectory() ? "/" : "",
                                                exe_file.GetFilename().AsCString(""),
                                                GetShortPluginName(),
                                                arch_names.GetString().c_str());
            }
        }
    }

    return error;
}
Пример #21
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;
}
Пример #22
0
Error PlatformFreeBSD::ResolveExecutable(
    const ModuleSpec &module_spec, lldb::ModuleSP &exe_module_sp,
    const FileSpecList *module_search_paths_ptr) {
  Error error;
  // Nothing special to do here, just use the actual file and architecture

  char exe_path[PATH_MAX];
  ModuleSpec resolved_module_spec(module_spec);

  if (IsHost()) {
    // If we have "ls" as the module_spec's file, resolve the executable
    // location based on
    // the current path variables
    if (!resolved_module_spec.GetFileSpec().Exists()) {
      module_spec.GetFileSpec().GetPath(exe_path, sizeof(exe_path));
      resolved_module_spec.GetFileSpec().SetFile(exe_path, true);
    }

    if (!resolved_module_spec.GetFileSpec().Exists())
      resolved_module_spec.GetFileSpec().ResolveExecutableLocation();

    if (resolved_module_spec.GetFileSpec().Exists())
      error.Clear();
    else {
      error.SetErrorStringWithFormat(
          "unable to find executable for '%s'",
          resolved_module_spec.GetFileSpec().GetPath().c_str());
    }
  } else {
    if (m_remote_platform_sp) {
      error =
          GetCachedExecutable(resolved_module_spec, exe_module_sp,
                              module_search_paths_ptr, *m_remote_platform_sp);
    } else {
      // We may connect to a process and use the provided executable (Don't use
      // local $PATH).

      // Resolve any executable within a bundle on MacOSX
      Host::ResolveExecutableInBundle(resolved_module_spec.GetFileSpec());

      if (resolved_module_spec.GetFileSpec().Exists()) {
        error.Clear();
      } else {
        error.SetErrorStringWithFormat(
            "the platform is not currently connected, and '%s' doesn't exist "
            "in the system root.",
            resolved_module_spec.GetFileSpec().GetPath().c_str());
      }
    }
  }

  if (error.Success()) {
    if (resolved_module_spec.GetArchitecture().IsValid()) {
      error = ModuleList::GetSharedModule(resolved_module_spec, exe_module_sp,
                                          module_search_paths_ptr, NULL, NULL);

      if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL) {
        exe_module_sp.reset();
        error.SetErrorStringWithFormat(
            "'%s' doesn't contain the architecture %s",
            resolved_module_spec.GetFileSpec().GetPath().c_str(),
            resolved_module_spec.GetArchitecture().GetArchitectureName());
      }
    } else {
      // No valid architecture was specified, ask the platform for
      // the architectures that we should be using (in the correct order)
      // and see if we can find a match that way
      StreamString arch_names;
      for (uint32_t idx = 0; GetSupportedArchitectureAtIndex(
               idx, resolved_module_spec.GetArchitecture());
           ++idx) {
        error =
            ModuleList::GetSharedModule(resolved_module_spec, exe_module_sp,
                                        module_search_paths_ptr, NULL, NULL);
        // Did we find an executable using one of the
        if (error.Success()) {
          if (exe_module_sp && exe_module_sp->GetObjectFile())
            break;
          else
            error.SetErrorToGenericError();
        }

        if (idx > 0)
          arch_names.PutCString(", ");
        arch_names.PutCString(
            resolved_module_spec.GetArchitecture().GetArchitectureName());
      }

      if (error.Fail() || !exe_module_sp) {
        if (resolved_module_spec.GetFileSpec().Readable()) {
          error.SetErrorStringWithFormat(
              "'%s' doesn't contain any '%s' platform architectures: %s",
              resolved_module_spec.GetFileSpec().GetPath().c_str(),
              GetPluginName().GetCString(), arch_names.GetData());
        } else {
          error.SetErrorStringWithFormat(
              "'%s' is not readable",
              resolved_module_spec.GetFileSpec().GetPath().c_str());
        }
      }
    }
  }

  return error;
}
Пример #23
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);
}
Пример #24
0
Error
PlatformRemoteiOS::ResolveExecutable (const ModuleSpec &ms,
                                      lldb::ModuleSP &exe_module_sp,
                                      const FileSpecList *module_search_paths_ptr)
{
    Error error;
    // Nothing special to do here, just use the actual file and architecture

    ModuleSpec resolved_module_spec(ms);

    // Resolve any executable within a bundle on MacOSX
    // TODO: verify that this handles shallow bundles, if not then implement one ourselves
    Host::ResolveExecutableInBundle (resolved_module_spec.GetFileSpec());

    if (resolved_module_spec.GetFileSpec().Exists())
    {
        if (resolved_module_spec.GetArchitecture().IsValid() || resolved_module_spec.GetUUID().IsValid())
        {
            error = ModuleList::GetSharedModule (resolved_module_spec,
                                                 exe_module_sp, 
                                                 NULL,
                                                 NULL, 
                                                 NULL);

            if (exe_module_sp && exe_module_sp->GetObjectFile())
                return error;
            exe_module_sp.reset();
        }
        // No valid architecture was specified or the exact ARM slice wasn't
        // found so ask the platform for the architectures that we should be
        // using (in the correct order) and see if we can find a match that way
        StreamString arch_names;
        for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, resolved_module_spec.GetArchitecture()); ++idx)
        {
            error = ModuleList::GetSharedModule (resolved_module_spec,
                                                 exe_module_sp, 
                                                 NULL,
                                                 NULL, 
                                                 NULL);
            // Did we find an executable using one of the 
            if (error.Success())
            {
                if (exe_module_sp && exe_module_sp->GetObjectFile())
                    break;
                else
                    error.SetErrorToGenericError();
            }
            
            if (idx > 0)
                arch_names.PutCString (", ");
            arch_names.PutCString (resolved_module_spec.GetArchitecture().GetArchitectureName());
        }
        
        if (error.Fail() || !exe_module_sp)
        {
            if (resolved_module_spec.GetFileSpec().Readable())
            {
                error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
                                                resolved_module_spec.GetFileSpec().GetPath().c_str(),
                                                GetPluginName().GetCString(),
                                                arch_names.GetString().c_str());
            }
            else
            {
                error.SetErrorStringWithFormat("'%s' is not readable", resolved_module_spec.GetFileSpec().GetPath().c_str());
            }
        }
    }
    else
    {
        error.SetErrorStringWithFormat ("'%s' does not exist",
                                        resolved_module_spec.GetFileSpec().GetPath().c_str());
    }

    return error;
}
Пример #25
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 ();
}