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//===-- OperatingSystemPython.cpp --------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_DISABLE_PYTHON
#include "OperatingSystemPython.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
#include "llvm/ADT/Triple.h"
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/DataBufferHeap.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegisterValue.h"
#include "lldb/Core/ValueObjectVariable.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/PythonDataObjects.h"
#include "lldb/Symbol/ClangNamespaceDecl.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/VariableList.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/ThreadList.h"
#include "lldb/Target/Thread.h"
#include "Plugins/Process/Utility/DynamicRegisterInfo.h"
#include "Plugins/Process/Utility/RegisterContextMemory.h"
#include "Plugins/Process/Utility/ThreadMemory.h"
using namespace lldb;
using namespace lldb_private;
void
OperatingSystemPython::Initialize()
{
PluginManager::RegisterPlugin (GetPluginNameStatic(),
GetPluginDescriptionStatic(),
CreateInstance);
}
void
OperatingSystemPython::Terminate()
{
PluginManager::UnregisterPlugin (CreateInstance);
}
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);
return NULL;
}
const char *
OperatingSystemPython::GetPluginNameStatic()
{
return "python";
}
const char *
OperatingSystemPython::GetPluginDescriptionStatic()
{
return "Operating system plug-in that gathers OS information from a python class that implements the necessary OperatingSystem functionality.";
}
OperatingSystemPython::OperatingSystemPython (lldb_private::Process *process) :
OperatingSystem (process),
m_thread_list_valobj_sp (),
m_register_info_ap (),
m_interpreter(NULL),
m_python_object(NULL)
{
if (!process)
return;
lldb::TargetSP target_sp = process->CalculateTarget();
if (!target_sp)
return;
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)
m_python_object = object_sp->GetObject();
}
}
OperatingSystemPython::~OperatingSystemPython ()
{
}
DynamicRegisterInfo *
OperatingSystemPython::GetDynamicRegisterInfo ()
{
if (!m_interpreter || !m_python_object)
return NULL;
auto object_sp = m_interpreter->OSPlugin_QueryForRegisterInfo(m_interpreter->MakeScriptObject(m_python_object));
if (!object_sp)
return NULL;
PythonDataObject dictionary_data_obj((PyObject*)object_sp->GetObject());
PythonDataDictionary dictionary = dictionary_data_obj.GetDictionaryObject();
if(!dictionary)
return NULL;
// TODO: iterate over the dictionary
if (m_register_info_ap.get() == NULL && m_thread_list_valobj_sp)
{
// static ConstString g_gpr_member_name("gpr");
// m_register_info_ap.reset (new DynamicRegisterInfo());
// ConstString empty_name;
// const bool can_create = true;
// AddressType addr_type;
// addr_t base_addr = LLDB_INVALID_ADDRESS;
// ValueObjectSP gpr_valobj_sp (m_thread_list_valobj_sp->GetChildMemberWithName(GetThreadGPRMemberName (), can_create));
//
// if (gpr_valobj_sp->IsPointerType ())
// base_addr = gpr_valobj_sp->GetPointerValue (&addr_type);
// else
// base_addr = gpr_valobj_sp->GetAddressOf (true, &addr_type);
//
// ValueObjectSP child_valobj_sp;
// if (gpr_valobj_sp)
// {
// ABI *abi = m_process->GetABI().get();
// assert (abi);
// uint32_t num_children = gpr_valobj_sp->GetNumChildren();
//
// ConstString gpr_name (gpr_valobj_sp->GetName());
// uint32_t reg_num = 0;
// for (uint32_t i=0; i<num_children; ++i)
// {
// child_valobj_sp = gpr_valobj_sp->GetChildAtIndex(i, can_create);
//
// ConstString reg_name(child_valobj_sp->GetName());
// if (reg_name)
// {
// const char *reg_name_cstr = reg_name.GetCString();
// while (reg_name_cstr[0] == '_')
// ++reg_name_cstr;
// if (reg_name_cstr != reg_name.GetCString())
// reg_name.SetCString (reg_name_cstr);
// }
//
// RegisterInfo reg_info;
// if (abi->GetRegisterInfoByName(reg_name, reg_info))
// {
// // Adjust the byte size and the offset to match the layout of registers in our struct
// reg_info.byte_size = child_valobj_sp->GetByteSize();
// reg_info.byte_offset = child_valobj_sp->GetAddressOf(true, &addr_type) - base_addr;
// reg_info.kinds[eRegisterKindLLDB] = reg_num++;
// m_register_info_ap->AddRegister (reg_info, reg_name, empty_name, gpr_name);
// }
// else
// {
// printf ("not able to find register info for %s\n", reg_name.GetCString()); // REMOVE THIS printf before checkin!!!
// }
// }
//
// m_register_info_ap->Finalize();
// }
}
assert (m_register_info_ap.get());
return m_register_info_ap.get();
}
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
const char *
OperatingSystemPython::GetPluginName()
{
return "OperatingSystemPython";
}
const char *
OperatingSystemPython::GetShortPluginName()
{
return GetPluginNameStatic();
}
uint32_t
OperatingSystemPython::GetPluginVersion()
{
return 1;
}
bool
OperatingSystemPython::UpdateThreadList (ThreadList &old_thread_list, ThreadList &new_thread_list)
{
// TODO: python: call "dict get_thread_info()" on the
// python object that represents our instance of the OperatingSystem plug-in
// and parse the returned dictionary. We need to pass in the a Dictionary
// with the same kind of info we want back so we can reuse old threads, but
// only create new ones.
// Make any constant strings once and cache the uniqued C string values
// so we don't have to rehash them each time through this function call
// dict thread_info_dict = python.get_thread_info()
// for thread_info in thread_info_dict:
// {
// ThreadSP thread_sp (old_thread_list.FindThreadByID (tid, false));
// if (!thread_sp)
// thread_sp.reset (new ThreadMemory (m_process->shared_from_this(), tid, valobj_sp));
// new_thread_list.AddThread(thread_sp);
// }
new_thread_list = old_thread_list;
return new_thread_list.GetSize(false) > 0;
}
void
OperatingSystemPython::ThreadWasSelected (Thread *thread)
{
}
RegisterContextSP
OperatingSystemPython::CreateRegisterContextForThread (Thread *thread)
{
// TODO: python: call "bytes get_register_context_data(SBThread thread)"
// and populate resulting data into thread
RegisterContextSP reg_ctx_sp;
// bytes b = get_register_context_data(thread)
// if (b)
// {
// reg_ctx_sp.reset (new RegisterContextMemory (*thread, 0, *GetDynamicRegisterInfo (), base_addr));
// // set bytes
// }
return reg_ctx_sp;
}
StopInfoSP
OperatingSystemPython::CreateThreadStopReason (lldb_private::Thread *thread)
{
// We should have gotten the thread stop info from the dictionary of data for
// the thread in the initial call to get_thread_info(), this should have been
// cached so we can return it here
StopInfoSP stop_info_sp; //(StopInfo::CreateStopReasonWithSignal (*thread, SIGSTOP));
return stop_info_sp;
}
#endif // #ifndef LLDB_DISABLE_PYTHON
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