caio/clang-p2996
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<rdar://problem/12491420>

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Added a new setting that allows a python OS plug-in to detect threads and provide registers for memory threads. To enable this you set the setting:

settings set target.process.python-os-plugin-path lldb/examples/python/operating_system.py

Then run your program and see the extra threads. 

llvm-svn: 166244
This commit is contained in:
Greg Clayton
2012-10-18 22:40:37 +00:00
parent ed8560b09c
commit c9d645d306
11 changed files with 109 additions and 37 deletions
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45
lldb/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp
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@@ -55,8 +55,13 @@ OperatingSystem *
OperatingSystemPython::CreateInstance (Process *process, bool force)
{
// Python OperatingSystem plug-ins must be requested by name, so force must be true
if (force)
return new OperatingSystemPython (process);
FileSpec python_os_plugin_spec (process->GetPythonOSPluginPath());
if (python_os_plugin_spec && python_os_plugin_spec.Exists())
{
std::auto_ptr<OperatingSystemPython> os_ap (new OperatingSystemPython (process, python_os_plugin_spec));
if (os_ap.get() && os_ap->IsValid())
return os_ap.release();
}
return NULL;
}
@@ -74,12 +79,12 @@ OperatingSystemPython::GetPluginDescriptionStatic()
}
OperatingSystemPython::OperatingSystemPython (lldb_private::Process *process) :
OperatingSystemPython::OperatingSystemPython (lldb_private::Process *process, const FileSpec &python_module_path) :
OperatingSystem (process),
m_thread_list_valobj_sp (),
m_register_info_ap (),
m_interpreter(NULL),
m_python_object(NULL)
m_interpreter (NULL),
m_python_object (NULL)
{
if (!process)
return;
@@ -89,13 +94,27 @@ OperatingSystemPython::OperatingSystemPython (lldb_private::Process *process) :
m_interpreter = target_sp->GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
if (m_interpreter)
{
// TODO: hardcoded is not good
auto object_sp = m_interpreter->CreateOSPlugin("operating_system.PlugIn",process->CalculateProcess());
if (object_sp)
std::string os_plugin_class_name (python_module_path.GetFilename().AsCString(""));
if (!os_plugin_class_name.empty())
{
m_python_object = object_sp->GetObject();
//GetDynamicRegisterInfo (); // COMMENT THIS LINE OUT PRIOR TO CHECKIN!!!
const bool init_session = false;
const bool allow_reload = true;
char python_module_path_cstr[PATH_MAX];
python_module_path.GetPath(python_module_path_cstr, sizeof(python_module_path_cstr));
Error error;
if (m_interpreter->LoadScriptingModule (python_module_path_cstr, allow_reload, init_session, error))
{
// Strip the ".py" extension if there is one
size_t py_extension_pos = os_plugin_class_name.rfind(".py");
if (py_extension_pos != std::string::npos)
os_plugin_class_name.erase (py_extension_pos);
// Add ".OperatingSystemPlugIn" to the module name to get a string like "modulename.OperatingSystemPlugIn"
os_plugin_class_name += ".OperatingSystemPlugIn";
auto object_sp = m_interpreter->CreateOSPlugin(os_plugin_class_name.c_str(), process->CalculateProcess());
if (object_sp)
m_python_object = object_sp->GetObject();
}
}
}
}
@@ -217,8 +236,8 @@ OperatingSystemPython::CreateRegisterContextForThread (Thread *thread)
return RegisterContextSP();
auto object_sp = m_interpreter->OSPlugin_QueryForRegisterContextData (m_interpreter->MakeScriptObject(m_python_object),
thread->GetID());
if (!object_sp)
if (!object_sp)
return RegisterContextSP();
PythonDataString reg_context_data((PyObject*)object_sp->GetObject());