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//===-- ThreadPlan.cpp ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/ThreadPlan.h"
// C Includes
#include <string.h>
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/DataBufferHeap.h"
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Disassembler.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/State.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/Value.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/TypeList.h"
#include "lldb/Target/ABI.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/Thread.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/SectionLoadList.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
#pragma mark ThreadPlanTracer
ThreadPlanTracer::ThreadPlanTracer (Thread &thread, lldb::StreamSP &stream_sp) :
m_thread (thread),
m_single_step(true),
m_enabled (false),
m_stream_sp (stream_sp)
{
}
ThreadPlanTracer::ThreadPlanTracer (Thread &thread) :
m_thread (thread),
m_single_step(true),
m_enabled (false),
m_stream_sp ()
{
}
Stream *
ThreadPlanTracer::GetLogStream ()
{
if (m_stream_sp.get())
return m_stream_sp.get();
else
{
TargetSP target_sp (m_thread.CalculateTarget());
if (target_sp)
return target_sp->GetDebugger().GetOutputFile().get();
}
return NULL;
}
void
ThreadPlanTracer::Log()
{
SymbolContext sc;
bool show_frame_index = false;
bool show_fullpaths = false;
Stream *stream = GetLogStream();
if (stream)
{
m_thread.GetStackFrameAtIndex(0)->Dump (stream, show_frame_index, show_fullpaths);
stream->Printf("\n");
stream->Flush();
}
}
bool
ThreadPlanTracer::TracerExplainsStop ()
{
if (m_enabled && m_single_step)
{
lldb::StopInfoSP stop_info = m_thread.GetStopInfo();
if (stop_info->GetStopReason() == eStopReasonTrace)
return true;
else
return false;
}
else
return false;
}
#pragma mark ThreadPlanAssemblyTracer
ThreadPlanAssemblyTracer::ThreadPlanAssemblyTracer (Thread &thread, lldb::StreamSP &stream_sp) :
ThreadPlanTracer (thread, stream_sp),
m_disassembler_sp (),
m_intptr_type (),
m_register_values ()
{
}
ThreadPlanAssemblyTracer::ThreadPlanAssemblyTracer (Thread &thread) :
ThreadPlanTracer (thread),
m_disassembler_sp (),
m_intptr_type (),
m_register_values ()
{
}
Disassembler *
ThreadPlanAssemblyTracer::GetDisassembler ()
{
if (m_disassembler_sp.get() == NULL)
m_disassembler_sp = Disassembler::FindPlugin(m_thread.GetProcess()->GetTarget().GetArchitecture(), NULL, NULL);
return m_disassembler_sp.get();
}
TypeFromUser
ThreadPlanAssemblyTracer::GetIntPointerType()
{
if (!m_intptr_type.IsValid ())
{
TargetSP target_sp (m_thread.CalculateTarget());
if (target_sp)
{
Module *exe_module = target_sp->GetExecutableModulePointer();
if (exe_module)
{
m_intptr_type = TypeFromUser(exe_module->GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize(eEncodingUint, target_sp->GetArchitecture().GetAddressByteSize() * 8));
}
}
}
return m_intptr_type;
}
ThreadPlanAssemblyTracer::~ThreadPlanAssemblyTracer()
{
}
void
ThreadPlanAssemblyTracer::TracingStarted ()
{
RegisterContext *reg_ctx = m_thread.GetRegisterContext().get();
if (m_register_values.size() == 0)
m_register_values.resize (reg_ctx->GetRegisterCount());
}
void
ThreadPlanAssemblyTracer::TracingEnded ()
{
m_register_values.clear();
}
void
ThreadPlanAssemblyTracer::Log ()
{
Stream *stream = GetLogStream ();
if (!stream)
return;
RegisterContext *reg_ctx = m_thread.GetRegisterContext().get();
lldb::addr_t pc = reg_ctx->GetPC();
ProcessSP process_sp (m_thread.GetProcess());
Address pc_addr;
bool addr_valid = false;
uint8_t buffer[16] = {0}; // Must be big enough for any single instruction
addr_valid = process_sp->GetTarget().GetSectionLoadList().ResolveLoadAddress (pc, pc_addr);
pc_addr.Dump(stream, &m_thread, Address::DumpStyleResolvedDescription, Address::DumpStyleModuleWithFileAddress);
stream->PutCString (" ");
Disassembler *disassembler = GetDisassembler();
if (disassembler)
{
Error err;
process_sp->ReadMemory(pc, buffer, sizeof(buffer), err);
if (err.Success())
{
DataExtractor extractor(buffer, sizeof(buffer),
process_sp->GetByteOrder(),
process_sp->GetAddressByteSize());
bool data_from_file = false;
if (addr_valid)
disassembler->DecodeInstructions (pc_addr, extractor, 0, 1, false, data_from_file);
else
disassembler->DecodeInstructions (Address (pc), extractor, 0, 1, false, data_from_file);
InstructionList &instruction_list = disassembler->GetInstructionList();
const uint32_t max_opcode_byte_size = instruction_list.GetMaxOpcocdeByteSize();
if (instruction_list.GetSize())
{
const bool show_bytes = true;
const bool show_address = true;
Instruction *instruction = instruction_list.GetInstructionAtIndex(0).get();
const FormatEntity::Entry *disassemble_format = m_thread.GetProcess()->GetTarget().GetDebugger().GetDisassemblyFormat();
instruction->Dump (stream,
max_opcode_byte_size,
show_address,
show_bytes,
NULL,
NULL,
NULL,
disassemble_format,
0);
}
}
}
const ABI *abi = process_sp->GetABI().get();
TypeFromUser intptr_type = GetIntPointerType();
if (abi && intptr_type.IsValid())
{
ValueList value_list;
const int num_args = 1;
for (int arg_index = 0; arg_index < num_args; ++arg_index)
{
Value value;
value.SetValueType (Value::eValueTypeScalar);
// value.SetContext (Value::eContextTypeClangType, intptr_type.GetOpaqueQualType());
value.SetClangType (intptr_type);
value_list.PushValue (value);
}
if (abi->GetArgumentValues (m_thread, value_list))
{
for (int arg_index = 0; arg_index < num_args; ++arg_index)
{
stream->Printf("\n\targ[%d]=%llx", arg_index, value_list.GetValueAtIndex(arg_index)->GetScalar().ULongLong());
if (arg_index + 1 < num_args)
stream->PutCString (", ");
}
}
}
RegisterValue reg_value;
for (uint32_t reg_num = 0, num_registers = reg_ctx->GetRegisterCount();
reg_num < num_registers;
++reg_num)
{
const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoAtIndex(reg_num);
if (reg_ctx->ReadRegister (reg_info, reg_value))
{
assert (reg_num < m_register_values.size());
if (m_register_values[reg_num].GetType() == RegisterValue::eTypeInvalid ||
reg_value != m_register_values[reg_num])
{
if (reg_value.GetType() != RegisterValue::eTypeInvalid)
{
stream->PutCString ("\n\t");
reg_value.Dump(stream, reg_info, true, false, eFormatDefault);
}
}
m_register_values[reg_num] = reg_value;
}
}
stream->EOL();
stream->Flush();
}
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