Teach LLDB about Windows processes.

This patch creates a simple ProcessWindows process plugin.
The only thing it knows how to do currently is create processes.

Differential Revision: http://reviews.llvm.org/D4681

llvm-svn: 214094

1 files changed, 203 insertions, 0 deletions

diff --git a/lldb/source/Plugins/Process/Windows/ProcessWindows.cpp b/lldb/source/Plugins/Process/Windows/ProcessWindows.cpp
new file mode 100644
index 00000000000..8aeed4b8252
--- /dev/null
+++ b/lldb/source/Plugins/Process/Windows/ProcessWindows.cpp
@@ -0,0 +1,203 @@
+//===-- ProcessWindows.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// Windows includes
+#include "lldb/Host/windows/windows.h"
+
+// C++ Includes
+// Other libraries and framework includes
+#include "lldb/Core/Module.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/State.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Target/DynamicLoader.h"
+#include "lldb/Target/Target.h"
+
+#include "ProcessWindows.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+//------------------------------------------------------------------------------
+// Static functions.
+
+ProcessSP
+ProcessWindows::CreateInstance(Target &target, Listener &listener, const FileSpec *)
+{
+    return ProcessSP(new ProcessWindows(target, listener));
+}
+
+void
+ProcessWindows::Initialize()
+{
+    static bool g_initialized = false;
+
+    if (!g_initialized)
+    {
+        g_initialized = true;
+        PluginManager::RegisterPlugin(GetPluginNameStatic(),
+                                      GetPluginDescriptionStatic(),
+                                      CreateInstance);
+    }
+}
+
+//------------------------------------------------------------------------------
+// Constructors and destructors.
+
+ProcessWindows::ProcessWindows(Target& target, Listener &listener)
+    : lldb_private::Process(target, listener)
+{
+}
+
+void
+ProcessWindows::Terminate()
+{
+}
+
+lldb_private::ConstString
+ProcessWindows::GetPluginNameStatic()
+{
+    static ConstString g_name("windows");
+    return g_name;
+}
+
+const char *
+ProcessWindows::GetPluginDescriptionStatic()
+{
+    return "Process plugin for Windows";
+}
+
+
+bool
+ProcessWindows::UpdateThreadList(ThreadList &old_thread_list, ThreadList &new_thread_list)
+{
+    new_thread_list = old_thread_list;
+    return new_thread_list.GetSize(false) > 0;
+}
+
+Error
+ProcessWindows::DoLaunch(Module *exe_module,
+                         ProcessLaunchInfo &launch_info)
+{
+    std::string executable;
+    std::string commandLine;
+    std::vector<char> environment;
+    STARTUPINFO startupinfo = {0};
+    PROCESS_INFORMATION pi = {0};
+    startupinfo.cb = sizeof(startupinfo);
+    
+    executable = launch_info.GetExecutableFile().GetPath();
+    launch_info.GetArguments().GetQuotedCommandString(commandLine);
+    BOOL result = ::CreateProcessA(executable.c_str(),
+                                   const_cast<char*>(commandLine.c_str()),
+                                   NULL,
+                                   NULL,
+                                   FALSE,
+                                   CREATE_NEW_CONSOLE,
+                                   NULL,
+                                   launch_info.GetWorkingDirectory(),
+                                   &startupinfo,
+                                   &pi);
+    Error error;
+    if (!result)
+        error.SetErrorToErrno();
+    return error;
+}
+
+Error
+ProcessWindows::DoResume()
+{
+    Error error;
+    return error;
+}
+
+
+//------------------------------------------------------------------------------
+// ProcessInterface protocol.
+
+lldb_private::ConstString
+ProcessWindows::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+ProcessWindows::GetPluginVersion()
+{
+    return 1;
+}
+
+void
+ProcessWindows::GetPluginCommandHelp(const char *command, Stream *strm)
+{
+}
+
+Error
+ProcessWindows::ExecutePluginCommand(Args &command, Stream *strm)
+{
+    return Error(1, eErrorTypeGeneric);
+}
+
+Log *
+ProcessWindows::EnablePluginLogging(Stream *strm, Args &command)
+{
+    return NULL;
+}
+
+Error
+ProcessWindows::DoDetach(bool keep_stopped)
+{
+    Error error;
+    error.SetErrorString("Detaching from processes is not currently supported on Windows.");
+    return error;
+}
+
+Error
+ProcessWindows::DoDestroy()
+{
+    Error error;
+    error.SetErrorString("Destroying processes is not currently supported on Windows.");
+    return error;
+}
+
+void
+ProcessWindows::RefreshStateAfterStop()
+{
+}
+
+bool
+ProcessWindows::IsAlive()
+{
+    return false;
+}
+
+size_t
+ProcessWindows::DoReadMemory(lldb::addr_t vm_addr,
+                             void *buf,
+                             size_t size,
+                             Error &error)
+{
+    return 0;
+}
+
+
+bool
+ProcessWindows::CanDebug(Target &target, bool plugin_specified_by_name)
+{
+    if (plugin_specified_by_name)
+        return true;
+
+    // For now we are just making sure the file exists for a given module
+    ModuleSP exe_module_sp(target.GetExecutableModule());
+    if (exe_module_sp.get())
+        return exe_module_sp->GetFileSpec().Exists();
+    return false;
+}
+