mame/src/emu/debugger.cpp
2020-06-19 12:38:41 +02:00

113 lines
3.0 KiB
C++

// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria, Aaron Giles
/*********************************************************************
debugger.cpp
Front-end debugger interfaces.
*********************************************************************/
#include "emu.h"
#include "debugger.h"
#include "osdepend.h"
#include "debug/debugcpu.h"
#include "debug/debugcmd.h"
#include "debug/debugcon.h"
#include "debug/debugvw.h"
#include <cctype>
/***************************************************************************
GLOBAL VARIABLES
***************************************************************************/
static running_machine *g_machine = nullptr;
static bool g_atexit_registered = false;
/*-------------------------------------------------
debug_break - stop in the debugger at the next
opportunity
-------------------------------------------------*/
void debugger_manager::debug_break()
{
m_console->get_visible_cpu()->debug()->halt_on_next_instruction("Internal breakpoint\n");
}
/*-------------------------------------------------
within_instruction_hook - call this to
determine if the debugger is currently halted
within the instruction hook
-------------------------------------------------*/
bool debugger_manager::within_instruction_hook()
{
if ((m_machine.debug_flags & DEBUG_FLAG_ENABLED) != 0)
return m_cpu->within_instruction_hook();
return false;
}
//**************************************************************************
// DEBUGGER MANAGER
//**************************************************************************
//-------------------------------------------------
// debugger_manager - constructor
//-------------------------------------------------
debugger_manager::debugger_manager(running_machine &machine)
: m_machine(machine)
{
/* initialize the submodules */
m_cpu = std::make_unique<debugger_cpu>(machine);
m_console = std::make_unique<debugger_console>(machine);
m_commands = std::make_unique<debugger_commands>(machine, cpu(), console());
g_machine = &machine;
/* register an atexit handler if we haven't yet */
if (!g_atexit_registered)
atexit(debugger_flush_all_traces_on_abnormal_exit);
g_atexit_registered = true;
/* initialize osd debugger features */
machine.osd().init_debugger();
}
/*-------------------------------------------------
// debugger_manager - destructor
-------------------------------------------------*/
debugger_manager::~debugger_manager()
{
g_machine = nullptr;
}
/*-------------------------------------------------
refresh_display - redraw the current
video display
-------------------------------------------------*/
void debugger_manager::refresh_display()
{
machine().video().frame_update(true);
}
/*-------------------------------------------------
debugger_flush_all_traces_on_abnormal_exit -
flush any traces in the event of an aborted
execution
-------------------------------------------------*/
void debugger_flush_all_traces_on_abnormal_exit()
{
if(g_machine != nullptr)
{
g_machine->debugger().cpu().flush_traces();
}
}