This adds a "batch mode" to lldb kinda like the gdb batch mode. It will quit the debugger

after all the commands have been executed except if one of the commands was an execution control
command that stopped because of a signal or exception.

Also adds a variant of SBCommandInterpreter::HandleCommand that takes an SBExecutionContext.  That
way you can run an lldb command targeted at a particular target, thread or process w/o having to 
select same before running the command.

Also exposes CommandInterpreter::HandleCommandsFromFile to the SBCommandInterpreter API, since that
seemed generally useful.

llvm-svn: 219654

1 files changed, 97 insertions, 2 deletions

diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp b/lldb/source/Interpreter/CommandInterpreter.cpp
index 28eafcbd1d9..b281bf1954c 100644
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -121,7 +121,8 @@ CommandInterpreter::CommandInterpreter
     m_truncation_warning(eNoTruncation),
     m_command_source_depth (0),
     m_num_errors(0),
-    m_quit_requested(false)
+    m_quit_requested(false),
+    m_stopped_for_crash(false)
 
 {
     debugger.SetScriptLanguage (script_language);
@@ -2568,6 +2569,42 @@ CommandInterpreter::HandleCommands (const StringList &commands,
                 return;
             }
         }
+
+        // Also check for "stop on crash here:
+        bool should_stop = false;
+        if (tmp_result.GetDidChangeProcessState() && options.GetStopOnCrash())
+        {
+            TargetSP target_sp (m_debugger.GetTargetList().GetSelectedTarget());
+            if (target_sp)
+            {
+                ProcessSP process_sp (target_sp->GetProcessSP());
+                if (process_sp)
+                {
+                    for (ThreadSP thread_sp : process_sp->GetThreadList().Threads())
+                    {
+                        StopReason reason = thread_sp->GetStopReason();
+                        if (reason == eStopReasonSignal || reason == eStopReasonException || reason == eStopReasonInstrumentation)
+                        {
+                            should_stop = true;
+                            break;
+                        }
+                    }
+                }
+            }
+            if (should_stop)
+            {
+                if (idx != num_lines - 1)
+                    result.AppendErrorWithFormat("Aborting reading of commands after command #%" PRIu64 ": '%s' stopped with a signal or exception.\n",
+                                                 (uint64_t)idx + 1, cmd);
+                else
+                    result.AppendMessageWithFormat("Command #%" PRIu64 " '%s' stopped with a signal or exception.\n", (uint64_t)idx + 1, cmd);
+                    
+                result.SetStatus(tmp_result.GetStatus());
+                m_debugger.SetAsyncExecution (old_async_execution);
+
+                return;
+            }
+        }
         
     }
     
@@ -2639,6 +2676,19 @@ CommandInterpreter::HandleCommandsFromFile (FileSpec &cmd_file,
                 flags |= eHandleCommandFlagStopOnError;
             }
 
+            if (options.GetStopOnCrash())
+            {
+                if (m_command_source_flags.empty())
+                {
+                    // Echo command by default
+                    flags |= eHandleCommandFlagStopOnCrash;
+                }
+                else if (m_command_source_flags.back() & eHandleCommandFlagStopOnCrash)
+                {
+                    flags |= eHandleCommandFlagStopOnCrash;
+                }
+            }
+
             if (options.m_echo_commands == eLazyBoolCalculate)
             {
                 if (m_command_source_flags.empty())
@@ -2694,7 +2744,7 @@ CommandInterpreter::HandleCommandsFromFile (FileSpec &cmd_file,
                                                               *this));
             const bool old_async_execution = debugger.GetAsyncExecution();
             
-            // Set synchronous execution if we not stopping when we continue
+            // Set synchronous execution if we are not stopping on continue
             if ((flags & eHandleCommandFlagStopOnContinue) == 0)
                 debugger.SetAsyncExecution (false);
 
@@ -3069,6 +3119,50 @@ CommandInterpreter::IOHandlerInputComplete (IOHandler &io_handler, std::string &
             io_handler.SetIsDone(true);
             break;
     }
+
+    // Finally, if we're going to stop on crash, check that here:
+    if (!m_quit_requested
+        && result.GetDidChangeProcessState()
+        && io_handler.GetFlags().Test(eHandleCommandFlagStopOnCrash))
+    {
+        bool should_stop = false;
+        TargetSP target_sp (m_debugger.GetTargetList().GetSelectedTarget());
+        if (target_sp)
+        {
+            ProcessSP process_sp (target_sp->GetProcessSP());
+            if (process_sp)
+            {
+                for (ThreadSP thread_sp : process_sp->GetThreadList().Threads())
+                {
+                    StopReason reason = thread_sp->GetStopReason();
+                    if (reason == eStopReasonSignal || reason == eStopReasonException || reason == eStopReasonInstrumentation)
+                    {
+                        // If we are printing results, we ought to show the resaon why we are stopping here:
+                        if (io_handler.GetFlags().Test(eHandleCommandFlagPrintResult))
+                        {
+                            if (!result.GetImmediateOutputStream())
+                            {
+                                const uint32_t start_frame = 0;
+                                const uint32_t num_frames = 1;
+                                const uint32_t num_frames_with_source = 1;
+                                thread_sp->GetStatus (*io_handler.GetOutputStreamFile().get(),
+                                                      start_frame,
+                                                      num_frames,
+                                                      num_frames_with_source);
+                            }
+                        }
+                        should_stop = true;
+                        break;
+                    }
+                }
+            }
+        }
+        if (should_stop)
+        {
+            io_handler.SetIsDone(true);
+            m_stopped_for_crash = true;
+        }
+    }
 }
 
 bool
@@ -3155,6 +3249,7 @@ CommandInterpreter::RunCommandInterpreter(bool auto_handle_events,
     const bool multiple_lines = false;
     m_num_errors = 0;
     m_quit_requested = false;
+    m_stopped_for_crash = false;
     
     // Always re-create the IOHandlerEditline in case the input
     // changed. The old instance might have had a non-interactive