Initial checkin of lldb code from internal Apple repo.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/API/SBDebugger.cpp b/source/API/SBDebugger.cpp
new file mode 100644
index 0000000..d31c93c
--- /dev/null
+++ b/source/API/SBDebugger.cpp
@@ -0,0 +1,569 @@
+//===-- SBDebugger.cpp ------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SBDebugger.h"
+
+#include "lldb/lldb-include.h"
+#include "lldb/Core/Args.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/State.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/TargetList.h"
+
+#include "SBListener.h"
+#include "SBBroadcaster.h"
+#include "SBCommandInterpreter.h"
+#include "SBCommandReturnObject.h"
+#include "SBEvent.h"
+#include "SBFrame.h"
+#include "SBTarget.h"
+#include "SBProcess.h"
+#include "SBThread.h"
+#include "SBSourceManager.h"
+#include "SBInputReader.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+void
+SBDebugger::Initialize ()
+{
+    Debugger::Initialize();
+}
+
+void
+SBDebugger::Terminate ()
+{
+    Debugger::Terminate();
+}
+
+void
+SBDebugger::SetAsync (bool b)
+{
+    static bool value_set_once = false;
+
+    if (!value_set_once)
+    {
+        value_set_once = true;
+        Debugger::GetSharedInstance().SetAsyncExecution(b);
+    }
+}
+
+void
+SBDebugger::SetInputFile (const char *tty_name)
+{
+    // DEPRECATED: will be removed in next submission
+    FILE *fh = ::fopen (tty_name, "r");
+    SetInputFileHandle  (fh, true);
+}
+
+void
+SBDebugger::SetOutputFile (const char *tty_name)
+{
+    // DEPRECATED: will be removed in next submission
+    FILE *fh = ::fopen (tty_name, "w");
+    SetOutputFileHandle (fh, true);
+    SetErrorFileHandle  (fh, false);
+}
+
+void
+SBDebugger::SetErrorFile (const char *tty_name)
+{
+    // DEPRECATED: will be removed in next submission
+}
+
+
+// Shouldn't really be settable after initialization as this could cause lots of problems; don't want users
+// trying to switch modes in the middle of a debugging session.
+void
+SBDebugger::SetInputFileHandle (FILE *fh, bool transfer_ownership)
+{
+    Debugger::GetSharedInstance().SetInputFileHandle (fh, transfer_ownership);
+}
+
+void
+SBDebugger::SetOutputFileHandle (FILE *fh, bool transfer_ownership)
+{
+    Debugger::GetSharedInstance().SetOutputFileHandle (fh, transfer_ownership);
+}
+
+void
+SBDebugger::SetErrorFileHandle (FILE *fh, bool transfer_ownership)
+{
+    Debugger::GetSharedInstance().SetErrorFileHandle (fh, transfer_ownership);
+}
+
+FILE *
+SBDebugger::GetInputFileHandle ()
+{
+    return Debugger::GetSharedInstance().GetInputFileHandle();
+}
+
+FILE *
+SBDebugger::GetOutputFileHandle ()
+{
+    return Debugger::GetSharedInstance().GetOutputFileHandle();
+}
+
+FILE *
+SBDebugger::GetErrorFileHandle ()
+{
+    return Debugger::GetSharedInstance().GetErrorFileHandle();
+}
+
+SBCommandInterpreter
+SBDebugger::GetCommandInterpreter ()
+{
+    SBCommandInterpreter sb_interpreter(Debugger::GetSharedInstance().GetCommandInterpreter());
+    return sb_interpreter;
+}
+
+void
+SBDebugger::HandleCommand (const char *command)
+{
+    SBProcess process;
+    SBCommandInterpreter sb_interpreter(Debugger::GetSharedInstance().GetCommandInterpreter());
+    SBCommandReturnObject result;
+
+    sb_interpreter.HandleCommand (command, result, false);
+
+    if (GetErrorFileHandle() != NULL)
+        result.PutError (GetErrorFileHandle());
+    if (GetOutputFileHandle() != NULL)
+        result.PutOutput (GetOutputFileHandle());
+
+    if (Debugger::GetSharedInstance().GetAsyncExecution() == false)
+    {
+        process = GetCommandInterpreter().GetProcess ();
+        if (process.IsValid())
+        {
+            EventSP event_sp;
+            Listener &lldb_listener = Debugger::GetSharedInstance().GetListener();
+            while (lldb_listener.GetNextEventForBroadcaster (process.get(), event_sp))
+            {
+                SBEvent event(event_sp);
+                HandleProcessEvent (process, event, GetOutputFileHandle(), GetErrorFileHandle());
+            }
+        }
+    }
+}
+
+SBListener
+SBDebugger::GetListener ()
+{
+    SBListener sb_listener(Debugger::GetSharedInstance().GetListener());
+    return sb_listener;
+}
+
+void
+SBDebugger::HandleProcessEvent (const SBProcess &process, const SBEvent &event, FILE *out, FILE *err)
+{
+     const uint32_t event_type = event.GetType();
+     char stdio_buffer[1024];
+     size_t len;
+
+     if (event_type & Process::eBroadcastBitSTDOUT)
+     {
+         while ((len = process.GetSTDOUT (stdio_buffer, sizeof (stdio_buffer))) > 0)
+             if (out != NULL)
+                 ::fwrite (stdio_buffer, 1, len, out);
+     }
+     else if (event_type & Process::eBroadcastBitSTDERR)
+     {
+         while ((len = process.GetSTDERR (stdio_buffer, sizeof (stdio_buffer))) > 0)
+             if (out != NULL)
+                 ::fwrite (stdio_buffer, 1, len, out);
+     }
+     else if (event_type & Process::eBroadcastBitStateChanged)
+     {
+         // Drain any stdout messages.
+         while ((len = process.GetSTDOUT (stdio_buffer, sizeof (stdio_buffer))) > 0)
+             if (out != NULL)
+                 ::fwrite (stdio_buffer, 1, len, out);
+
+         // Drain any stderr messages.
+         while ((len = process.GetSTDERR (stdio_buffer, sizeof (stdio_buffer))) > 0)
+             if (out != NULL)
+                 ::fwrite (stdio_buffer, 1, len, out);
+
+         StateType event_state = SBProcess::GetStateFromEvent (event);
+
+         if (event_state == eStateInvalid)
+             return;
+
+         bool is_stopped = StateIsStoppedState (event_state);
+         if (!is_stopped)
+             process.ReportCurrentState (event, out);
+   }
+}
+
+void
+SBDebugger::UpdateCurrentThread (SBProcess &process)
+{
+    if (process.IsValid())
+    {
+        SBThread curr_thread = process.GetCurrentThread ();
+        SBThread thread;
+        StopReason curr_thread_stop_reason = eStopReasonInvalid;
+        if (curr_thread.IsValid())
+        {
+            if (curr_thread.GetStopReason() != eStopReasonInvalid)
+                curr_thread_stop_reason = curr_thread.GetStopReason ();
+        }
+
+        if (! curr_thread.IsValid()
+            || curr_thread_stop_reason == eStopReasonInvalid
+            || curr_thread_stop_reason == eStopReasonNone)
+          {
+            // Prefer a thread that has just completed its plan over another thread as current thread.
+            SBThread plan_thread;
+            SBThread other_thread;
+            const size_t num_threads = process.GetNumThreads ();
+            size_t i;
+            for (i = 0; i < num_threads; ++i)
+            {
+                thread = process.GetThreadAtIndex(i);
+                if (thread.GetStopReason () != eStopReasonInvalid)
+                {
+                    switch (thread.GetStopReason ())
+                    {
+                        default:
+                        case eStopReasonInvalid:
+                        case eStopReasonNone:
+                            break;
+
+                        case eStopReasonTrace:
+                        case eStopReasonBreakpoint:
+                        case eStopReasonWatchpoint:
+                        case eStopReasonSignal:
+                        case eStopReasonException:
+                            if (! other_thread.IsValid())
+                                other_thread = thread;
+                            break;
+                        case eStopReasonPlanComplete:
+                            if (! plan_thread.IsValid())
+                                plan_thread = thread;
+                            break;
+                    }
+                }
+            }
+            if (plan_thread.IsValid())
+                process.SetCurrentThreadByID (plan_thread.GetThreadID());
+            else if (other_thread.IsValid())
+                process.SetCurrentThreadByID (other_thread.GetThreadID());
+            else
+            {
+                if (curr_thread.IsValid())
+                    thread = curr_thread;
+                else
+                    thread = process.GetThreadAtIndex(0);
+
+                if (thread.IsValid())
+                    process.SetCurrentThreadByID (thread.GetThreadID());
+            }
+        }
+    }
+}
+
+void
+SBDebugger::ReportCurrentLocation (FILE *out, FILE *err)
+{
+    if ((out == NULL) || (err == NULL))
+        return;
+
+    SBTarget sb_target (GetCurrentTarget());
+    if (!sb_target.IsValid())
+    {
+        fprintf (out, "no target\n");
+        return;
+    }
+
+    SBProcess process = sb_target.GetProcess ();
+    if (process.IsValid())
+    {
+        StateType state = process.GetState();
+
+        if (StateIsStoppedState (state))
+        {
+            if (state == eStateExited)
+            {
+                int exit_status = process.GetExitStatus();
+                const char *exit_description = process.GetExitDescription();
+                ::fprintf (out, "Process %d exited with status = %i (0x%8.8x) %s\n",
+                           process.GetProcessID(),
+                           exit_status,
+                           exit_status,
+                           exit_description ? exit_description : "");
+            }
+            else
+            {
+                fprintf (out, "Process %d %s\n", process.GetProcessID(), StateAsCString (state));
+                SBThread current_thread = process.GetThreadAtIndex (0);
+                if (current_thread.IsValid())
+                {
+                    process.DisplayThreadsInfo (out, err, true);
+                }
+                else
+                    fprintf (out, "No valid thread found in current process\n");
+            }
+        }
+        else
+            fprintf (out, "No current location or status available\n");
+    }
+}
+
+SBSourceManager &
+SBDebugger::GetSourceManager ()
+{
+    static SourceManager g_lldb_source_manager;
+    static SBSourceManager g_sb_source_manager (g_lldb_source_manager);
+    return g_sb_source_manager;
+}
+
+
+bool
+SBDebugger::GetDefaultArchitecture (char *arch_name, size_t arch_name_len)
+{
+    if (arch_name && arch_name_len)
+    {
+        ArchSpec &default_arch = lldb_private::GetDefaultArchitecture ();
+        if (default_arch.IsValid())
+        {
+            ::snprintf (arch_name, arch_name_len, "%s", default_arch.AsCString());
+            return true;
+        }
+    }
+    if (arch_name && arch_name_len)
+        arch_name[0] = '\0';
+    return false;
+}
+
+
+bool
+SBDebugger::SetDefaultArchitecture (const char *arch_name)
+{
+    if (arch_name)
+    {
+        ArchSpec arch (arch_name);
+        if (arch.IsValid())
+        {
+            lldb_private::GetDefaultArchitecture () = arch;
+            return true;
+        }
+    }
+    return false;
+}
+
+ScriptLanguage
+SBDebugger::GetScriptingLanguage (const char *script_language_name)
+{
+    return Args::StringToScriptLanguage (script_language_name,
+                                         eScriptLanguageDefault,
+                                         NULL);
+}
+//pid_t
+/*
+SBDebugger::AttachByName (const char *process_name, const char *filename)
+{
+    SBTarget *temp_target = GetCurrentTarget();
+    SBTarget sb_target;
+    pid_t return_pid = (pid_t) LLDB_INVALID_PROCESS_ID;
+
+    if (temp_target == NULL)
+    {
+        if (filename != NULL)
+        {
+            sb_target = CreateWithFile (filename);
+            sb_target.SetArch (LLDB_ARCH_DEFAULT);
+        }
+    }
+    else
+    {
+          sb_target = *temp_target;
+    }
+
+    if (sb_target.IsValid())
+    {
+        SBProcess process = sb_target.GetProcess ();
+        if (process.IsValid())
+        {
+            return_pid = process.AttachByName (process_name);
+        }
+    }
+    return return_pid;
+}
+*/
+
+const char *
+SBDebugger::GetVersionString ()
+{
+    return lldb_private::GetVersion();
+}
+
+const char *
+SBDebugger::StateAsCString (lldb::StateType state)
+{
+    return lldb_private::StateAsCString (state);
+}
+
+bool
+SBDebugger::StateIsRunningState (lldb::StateType state)
+{
+    return lldb_private::StateIsRunningState (state);
+}
+
+bool
+SBDebugger::StateIsStoppedState (lldb::StateType state)
+{
+    return lldb_private::StateIsStoppedState (state);
+}
+
+
+SBTarget
+SBDebugger::CreateTargetWithFileAndTargetTriple (const char *filename,
+                                                 const char *target_triple)
+{
+    ArchSpec arch;
+    FileSpec file_spec (filename);
+    arch.SetArchFromTargetTriple(target_triple);
+    TargetSP target_sp;
+    Error error (Debugger::GetSharedInstance().GetTargetList().CreateTarget (file_spec, arch, NULL, true, target_sp));
+    SBTarget target(target_sp);
+    return target;
+}
+
+SBTarget
+SBDebugger::CreateTargetWithFileAndArch (const char *filename, const char *archname)
+{
+    FileSpec file (filename);
+    ArchSpec arch = lldb_private::GetDefaultArchitecture();
+    TargetSP target_sp;
+    Error error;
+
+    if (archname != NULL)
+    {
+        ArchSpec arch2 (archname);
+        error = Debugger::GetSharedInstance().GetTargetList().CreateTarget (file, arch2, NULL, true, target_sp);
+    }
+    else
+    {
+        if (!arch.IsValid())
+            arch = LLDB_ARCH_DEFAULT;
+
+        error = Debugger::GetSharedInstance().GetTargetList().CreateTarget (file, arch, NULL, true, target_sp);
+
+        if (error.Fail())
+        {
+            if (arch == LLDB_ARCH_DEFAULT_32BIT)
+                arch = LLDB_ARCH_DEFAULT_64BIT;
+            else
+                arch = LLDB_ARCH_DEFAULT_32BIT;
+
+            error = Debugger::GetSharedInstance().GetTargetList().CreateTarget (file, arch, NULL, true, target_sp);
+        }
+    }
+
+    if (error.Success())
+        Debugger::GetSharedInstance().GetTargetList().SetCurrentTarget (target_sp.get());
+    else
+        target_sp.reset();
+
+    SBTarget sb_target (target_sp);
+    return sb_target;
+}
+
+SBTarget
+SBDebugger::CreateTarget (const char *filename)
+{
+    FileSpec file (filename);
+    ArchSpec arch = lldb_private::GetDefaultArchitecture();
+    TargetSP target_sp;
+    Error error;
+
+    if (!arch.IsValid())
+        arch = LLDB_ARCH_DEFAULT;
+
+    error = Debugger::GetSharedInstance().GetTargetList().CreateTarget (file, arch, NULL, true, target_sp);
+
+    if (error.Fail())
+    {
+        if (arch == LLDB_ARCH_DEFAULT_32BIT)
+            arch = LLDB_ARCH_DEFAULT_64BIT;
+        else
+            arch = LLDB_ARCH_DEFAULT_32BIT;
+
+        error = Debugger::GetSharedInstance().GetTargetList().CreateTarget (file, arch, NULL, true, target_sp);
+    }
+
+    if (!error.Fail())
+        Debugger::GetSharedInstance().GetTargetList().SetCurrentTarget (target_sp.get());
+
+    SBTarget sb_target (target_sp);
+    return sb_target;
+}
+
+SBTarget
+SBDebugger::GetTargetAtIndex (uint32_t idx)
+{
+    SBTarget sb_target (Debugger::GetSharedInstance().GetTargetList().GetTargetAtIndex (idx));
+    return sb_target;
+}
+
+SBTarget
+SBDebugger::FindTargetWithProcessID (pid_t pid)
+{
+    SBTarget sb_target(Debugger::GetSharedInstance().GetTargetList().FindTargetWithProcessID (pid));
+    return sb_target;
+}
+
+SBTarget
+SBDebugger::FindTargetWithFileAndArch (const char *filename, const char *arch_name)
+{
+    ArchSpec arch;
+    if (arch_name)
+        arch.SetArch(arch_name);
+    return SBTarget (Debugger::GetSharedInstance().GetTargetList().FindTargetWithExecutableAndArchitecture (FileSpec(filename),
+                                                                                                            arch_name ? &arch : NULL));
+}
+
+SBTarget
+SBDebugger::FindTargetWithLLDBProcess (const lldb::ProcessSP &process_sp)
+{
+    SBTarget sb_target(Debugger::GetSharedInstance().GetTargetList().FindTargetWithProcess (process_sp.get()));
+    return sb_target;
+}
+
+
+uint32_t
+SBDebugger::GetNumTargets ()
+{
+    return Debugger::GetSharedInstance().GetTargetList().GetNumTargets ();}
+
+SBTarget
+SBDebugger::GetCurrentTarget ()
+{
+    SBTarget sb_target(Debugger::GetSharedInstance().GetTargetList().GetCurrentTarget ());
+    return sb_target;
+}
+
+void
+SBDebugger::DispatchInput (void *baton, const void *data, size_t data_len)
+{
+    Debugger::GetSharedInstance().DispatchInput ((const char *) data, data_len);
+}
+
+void
+SBDebugger::PushInputReader (SBInputReader &reader)
+{
+    if (reader.IsValid())
+    {
+        InputReaderSP reader_sp(*reader);
+        Debugger::GetSharedInstance().PushInputReader (reader_sp);
+    }
+}