Index: lldb/include/lldb/Core/Debugger.h
===================================================================
--- lldb/include/lldb/Core/Debugger.h
+++ lldb/include/lldb/Core/Debugger.h
@@ -329,6 +329,8 @@
 
   bool SetUseColor(bool use_color);
 
+  bool GetShowProgress() const;
+
   bool GetUseAutosuggestion() const;
 
   bool GetUseSourceCache() const;
@@ -435,6 +437,8 @@
                              uint64_t completed, uint64_t total,
                              llvm::Optional<lldb::user_id_t> debugger_id);
 
+  void PrintProgress(const Debugger::ProgressEventData &data);
+
   bool StartEventHandlerThread();
 
   void StopEventHandlerThread();
@@ -462,6 +466,8 @@
 
   void HandleThreadEvent(const lldb::EventSP &event_sp);
 
+  void HandleProgressEvent(const lldb::EventSP &event_sp);
+
   // Ensures two threads don't attempt to flush process output in parallel.
   std::mutex m_output_flush_mutex;
   void FlushProcessOutput(Process &process, bool flush_stdout,
@@ -510,6 +516,8 @@
   IOHandlerStack m_io_handler_stack;
   std::recursive_mutex m_io_handler_synchronous_mutex;
 
+  llvm::Optional<uint64_t> m_current_event_id;
+
   llvm::StringMap<std::weak_ptr<llvm::raw_ostream>> m_log_streams;
   std::shared_ptr<llvm::raw_ostream> m_log_callback_stream_sp;
   ConstString m_instance_name;
Index: lldb/include/lldb/Interpreter/CommandInterpreter.h
===================================================================
--- lldb/include/lldb/Interpreter/CommandInterpreter.h
+++ lldb/include/lldb/Interpreter/CommandInterpreter.h
@@ -166,9 +166,7 @@
     m_add_to_history = add_to_history ? eLazyBoolYes : eLazyBoolNo;
   }
 
-  bool GetAutoHandleEvents() const {
-    return DefaultToYes(m_auto_handle_events);
-  }
+  bool GetAutoHandleEvents() const { return DefaultToNo(m_auto_handle_events); }
 
   void SetAutoHandleEvents(bool auto_handle_events) {
     m_auto_handle_events = auto_handle_events ? eLazyBoolYes : eLazyBoolNo;
@@ -188,6 +186,7 @@
   LazyBool m_print_results = eLazyBoolCalculate;
   LazyBool m_print_errors = eLazyBoolCalculate;
   LazyBool m_add_to_history = eLazyBoolCalculate;
+  LazyBool m_show_progress;
   LazyBool m_auto_handle_events;
   LazyBool m_spawn_thread;
 
Index: lldb/source/Core/CoreProperties.td
===================================================================
--- lldb/source/Core/CoreProperties.td
+++ lldb/source/Core/CoreProperties.td
@@ -131,6 +131,10 @@
     Global,
     DefaultTrue,
     Desc<"Whether to use Ansi color codes or not.">;
+  def ShowProgress: Property<"show-progress", "Boolean">,
+    Global,
+    DefaultTrue,
+    Desc<"Whether to show progress or not.">;
   def UseSourceCache: Property<"use-source-cache", "Boolean">,
     Global,
     DefaultTrue,
Index: lldb/source/Core/Debugger.cpp
===================================================================
--- lldb/source/Core/Debugger.cpp
+++ lldb/source/Core/Debugger.cpp
@@ -378,6 +378,12 @@
   return ret;
 }
 
+bool Debugger::GetShowProgress() const {
+  const uint32_t idx = ePropertyShowProgress;
+  return m_collection_sp->GetPropertyAtIndexAsBoolean(
+      nullptr, idx, g_debugger_properties[idx].default_uint_value != 0);
+}
+
 bool Debugger::GetUseAutosuggestion() const {
   const uint32_t idx = ePropertyShowAutosuggestion;
   return m_collection_sp->GetPropertyAtIndexAsBoolean(
@@ -1605,6 +1611,11 @@
           CommandInterpreter::eBroadcastBitAsynchronousOutputData |
           CommandInterpreter::eBroadcastBitAsynchronousErrorData);
 
+  if (!m_broadcaster.EventTypeHasListeners(Debugger::eBroadcastBitProgress)) {
+    listener_sp->StartListeningForEvents(&m_broadcaster,
+                                         Debugger::eBroadcastBitProgress);
+  }
+
   // Let the thread that spawned us know that we have started up and that we
   // are now listening to all required events so no events get missed
   m_sync_broadcaster.BroadcastEvent(eBroadcastBitEventThreadIsListening);
@@ -1654,6 +1665,9 @@
                 }
               }
             }
+          } else if (broadcaster == &m_broadcaster) {
+            if (event_type & Debugger::eBroadcastBitProgress)
+              HandleProgressEvent(event_sp);
           }
         }
 
@@ -1719,6 +1733,55 @@
   return {};
 }
 
+void Debugger::HandleProgressEvent(const lldb::EventSP &event_sp) {
+  auto *data =
+      Debugger::ProgressEventData::GetEventDataFromEvent(event_sp.get());
+  if (!data)
+    return;
+
+  // Do some bookkeeping for the current event, regardless of whether we're
+  // going to show the progress.
+  const uint64_t id = data->GetID();
+  if (m_current_event_id) {
+    if (id != *m_current_event_id)
+      return;
+    if (data->GetCompleted())
+      m_current_event_id.reset();
+  } else {
+    m_current_event_id = id;
+  }
+
+  // Decide whether we actually are going to show the progress. This
+  // decision can change between iterations so check it inside the loop.
+  File &output = GetOutputFile();
+  if (!output.GetIsTerminalWithColors() || !GetShowProgress())
+    return;
+
+  // If we're done, just clear the current line.
+  if (data->GetCompleted()) {
+    output.Printf("\33[2K\r");
+    return;
+  }
+
+  // Print over previous line, if any.
+  output.Printf("\r");
+
+  // Print the progress message.
+  std::string message = data->GetMessage();
+  if (data->GetTotal() != UINT64_MAX) {
+    output.Printf("[%llu/%llu] %s...", data->GetCompleted(), data->GetTotal(),
+                  message.c_str());
+  } else {
+    output.Printf("%s...", message.c_str());
+  }
+
+  // Clear until the end of the line.
+  output.Printf("\x1B[K");
+
+  // Flush the output.
+  output.Flush();
+}
+
 bool Debugger::HasIOHandlerThread() { return m_io_handler_thread.IsJoinable(); }
 
 bool Debugger::StartIOHandlerThread() {
Index: lldb/source/Symbol/LocateSymbolFile.cpp
===================================================================
--- lldb/source/Symbol/LocateSymbolFile.cpp
+++ lldb/source/Symbol/LocateSymbolFile.cpp
@@ -10,6 +10,7 @@
 
 #include "lldb/Core/ModuleList.h"
 #include "lldb/Core/ModuleSpec.h"
+#include "lldb/Core/Progress.h"
 #include "lldb/Host/FileSystem.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Utility/ArchSpec.h"
@@ -262,6 +263,10 @@
       FileSystem::Instance().Exists(symbol_file_spec))
     return symbol_file_spec;
 
+  Progress progress(llvm::formatv(
+      "Locating external symbol file for {0}",
+      module_spec.GetFileSpec().GetFilename().AsCString("<Unknown>")));
+
   FileSpecList debug_file_search_paths = default_search_paths;
 
   // Add module directory.